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Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
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1

Field Testing of Low-Cost Bio-Based Phase Change Material  

SciTech Connect

A test wall built with phase change material (PCM)-enhanced loose-fill cavity insulation was monitored for a period of about a year in the warm-humid climate of Charleston, South Carolina. The test wall was divided into various sections, one of which contained only loose-fill insulation and served as a control for comparing and evaluating the wall sections with the PCM-enhanced insulation. This report summarizes the findings of the field test.

Biswas, Kaushik [ORNL; Childs, Phillip W [ORNL; Atchley, Jerald Allen [ORNL

2013-03-01T23:59:59.000Z

2

Bio-Based Phase Change Materials Research Project | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Based Phase Change Materials Research Based Phase Change Materials Research Project Bio-Based Phase Change Materials Research Project The Department of Energy is currently conducting research into the development of low cost, bio-based phase change materials for building envelopes. Because insulation keeps hot air out inside buildings during the summer and outside during the winter, developing low cost materials can both drive down the cost of insulation and reduce energy costs. Project Description This project seeks to develop a low cost manufacturing process for the production of phase change materials (PCMs), and to subsequently evaluate the PCM pellets produced to provide improved insulation in buildings. Project Partners Research is being undertaken between the Department of Energy, Oak Ridge

3

A Simple, Low Cost Longitudinal Phase Space Diagnostic  

Science Conference Proceedings (OSTI)

For proper operation of the LCLS [1] x-ray free-electron laser (FEL), and other similar machines, measurement and control of the electron bunch longitudinal phase space is critical. The LCLS accelerator includes two bunch compressor chicanes to magnify the peak current. These magnetic chicanes can generate significant coherent synchrotron radiation (CSR), which can distort the phase space distribution. We propose a diagnostic scheme by exciting a weak skew quadrupole at an energy-chirped, high dispersion point in the first LCLS bunch compressor (BC1) to reconstruct longitudinal phase space on an OTR screen after BC1, allowing a time-resolved characterization of CSR effects.

Bertsche, Kirk; Emma, Paul; /SLAC; Shevchenko, Oleg; /Novosibirsk, IYF

2009-05-15T23:59:59.000Z

4

Light-Weight, Low-Cost, Single-Phase, Liquid-Cooled Cold Plate (Presentation)  

SciTech Connect

This presentation, 'Light-Weight, Low-Cost, Single-Phase Liquid-Cooled Cold Plate,' directly addresses program goals of increased power density, specific power, and lower cost of power electronics components through improved thermal management.

Narumanchi, S.

2013-07-01T23:59:59.000Z

5

EPRI Family of Multi-Functional Low-Cost Solid-State Switchgear: Requirements Definition Phase  

Science Conference Proceedings (OSTI)

This report describes the findings of the research performed to assess the requirements for a next generation solid-state breakers ("all solid-state" as well as "hybrid" designs), identify the application areas, and evaluate the economic and technical considerations for different technologies and design options for a family of low-cost solid-state switchgears. The report outlines a research roadmap for design and development of the proposed technology and identifies the key functionalities and criteria t...

2005-12-22T23:59:59.000Z

6

Bio-Based Products  

Energy.gov (U.S. Department of Energy (DOE))

Almost all of the products we currently make from fossil fuels can also be made from biomass. These bioproducts, or bio-based products, are not only made from renewable sources, but they also often...

7

Theoretical and Experimental Thermal Performance Analysis of Complex Thermal Storage Membrane Containing Bio-Based Phase Change Material (PCM)  

DOE Green Energy (OSTI)

Since 2000, an ORNL research team has been testing different configurations of PCM-enhanced building envelop components to be used in residential and commercial buildings. During 2009, a novel type of thermal storage membrane was evaluated for building envelope applications. Bio-based PCM was encapsulated between two layers of heavy-duty plastic film forming a complex array of small PCM cells. Today, a large group of PCM products are packaged in such complex PCM containers or foils containing arrays of PCM pouches of different shapes and sizes. The transient characteristics of PCM-enhanced building envelope materials depend on the quality and amount of PCM, which is very often difficult to estimate because of the complex geometry of many PCM heat sinks. The only widely used small-scale analysis method used to evaluate the dynamic characteristics of PCM-enhanced building products is the differential scanning calorimeter (DSC). Unfortunately, this method requires relatively uniform, and very small, specimens of the material. However, in numerous building thermal storage applications, PCM products are not uniformly distributed across the surface area, making the results of traditional DSC measurements unrealistic for these products. In addition, most of the PCM-enhanced building products contain blends of PCM with fire retardants and chemical stabilizers. This combination of non-uniform distribution and non-homogenous composition make it nearly impossible to select a representative small specimen suitable for DSC tests. Recognizing these DSC limitations, ORNL developed a new methodology for performing dynamic heat flow analysis of complex PCM-enhanced building materials. An experimental analytical protocol to analyze the dynamic characteristics of PCM thermal storage makes use of larger specimens in a conventional heat-flow meter apparatus, and combines these experimental measurements with three-dimensional (3-D) finite-difference modeling and whole building energy simulations. Based on these dynamic tests and modeling, ORNL researchers then developed a simplified one-dimensional (1-D) model of the PCM-enhanced building component that can be easily used in whole-building simulations. This paper describes this experimental-analytical methodology as used in the analysis of an insulation assembly containing a complex array of PCM pouches. Based on the presented short example of whole building energy analysis, this paper describes step-by-step how energy simulation results can be used for optimization of PCM-enhanced building envelopes. Limited results of whole building energy simulations using the EnergyPlus program are presented as well.

Kosny, Jan [ORNL; Stovall, Therese K [ORNL; Shrestha, Som S [ORNL; Yarbrough, David W [ORNL

2010-12-01T23:59:59.000Z

8

Energy Basics: Bio-Based Products  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Share this resource Biomass Biofuels Biopower Bio-Based Products Biomass Resources Geothermal Hydrogen Hydropower Ocean Solar Wind Bio-Based Products Almost all of the products...

9

Low Cost, Durable Seal  

NLE Websites -- All DOE Office Websites (Extended Search)

Cost, Durable Seal Cost, Durable Seal George M. Roberts UTC Power Corporation February 14, 2007 This presentation does not contain any proprietary or confidential information 1 LOW COST, DURABLE SEAL Outline * Project Objective * Technical Approach * Timeline * Team Roles * Budget * Q&A 2 LOW COST, DURABLE SEAL Project Objective Develop advanced, low cost, durable seal materials and sealing techniques amenable to high volume manufacture of PEM cell stacks. DOE Targets/Goals/Objectives Project Goal Durability Transportation: 5,000 hr Stationary: 40,000 hr Durability Improve mechanical and chemical stability to achieve 40,000 hr of useful operating life. Low Cost Low Cost A material cost equivalent to or less than the cost of silicones in common use. 3 LOW COST, DURABLE SEAL

10

Phase I of the Automated Array Assembly Task of the Low Cost Silicon Solar Array Project. Technical quarterly report No. 2. Motorola report No. 2258/2  

SciTech Connect

Phase I of the Automated Array Assembly Task, LCSSAP, is concerned with a comprehensive assessment of the improvements in existing technology that may be needed in order to develop, by 1985, an industrial capability for low cost, mass production of very durable silicon solar photovoltaic modules and arrays. Both experimental, literature, and theoretical sources are being utilized to evaluate efficient solar cell design criteria and individual and synergistic process effects on the cost effective production and encapsulation of such efficient solar cells.

Coleman, M.

1976-07-01T23:59:59.000Z

11

Development of standardized, low-cost AC PV systems. Phase I annual report, 7 September 1995--7 November 1996  

DOE Green Energy (OSTI)

The objectives of this two-year program are to improve the reliability and safety and reduce the cost of installed grid-connected PV systems by creating standardized, pre-engineered components and an enhanced, low-cost, 250-Watt micro inverter. These advances will be combined with the new, large area Solarex MSX-240 PV module resulting in standard, modular AC PV {open_quotes}building blocks{close_quotes} used to create utility-interactive PV systems as small as one module to many thousands of modules to suit virtually any application. AC PV building blocks will be developed to meet the requirements of the U.S., Japanese and European markets.

Strong, S.J.; Wohlgemuth, J.H.; Kaelin, M.

1997-06-01T23:59:59.000Z

12

Phase I of the Automated Array Assembly Task of the Low Cost Silicon Solar Array Project. Motorola report No. 2258/1. Technical quarterly report No. 1  

DOE Green Energy (OSTI)

Phase I of the Automated Array Assembly Task, LCSSAP, is concerned with a comprehensive assessment of the improvements in existing technology that may be needed in order to develop, by 1985, an industrial capability for low cost, mass production of very durable silicon solar photovoltaic modules and arrays. Design criteria for efficient solar cells are discussed, emphasis being given to front metal surface pattern and texture etched front surfaces. A generalized processing matrix, containing competing methods for solar cell manufacturing steps, is outlined. The steps in this processing matrix are discussed and characterized according to immediate and potential usefulness. Representative steps have been chosen for empirical evaluation.

Coleman, M.

1976-04-01T23:59:59.000Z

13

Efficient Phase-Change Materials: Development of a Low-Cost Thermal Energy Storage System Using Phase-Change Materials with Enhanced Radiation Heat Transfer  

Science Conference Proceedings (OSTI)

HEATS Project: USF is developing low-cost, high-temperature phase-change materials (PCMs) for use in thermal energy storage systems. Heat storage materials are critical to the energy storage process. In solar thermal storage systems, heat can be stored in these materials during the day and released at nightwhen the sun is not outto drive a turbine and produce electricity. In nuclear storage systems, heat can be stored in these materials at night and released to produce electricity during daytime peak-demand hours. Most PCMs do not conduct heat very well. Using an innovative, electroless encapsulation technique, USF is enhancing the heat transfer capability of its PCMs. The inner walls of the capsules will be lined with a corrosion-resistant, high-infrared emissivity coating, and the absorptivity of the PCM will be controlled with the addition of nano-sized particles. USFs PCMs remain stable at temperatures from 600 to 1,000C and can be used for solar thermal power storage, nuclear thermal power storage, and other applications.

None

2011-12-05T23:59:59.000Z

14

Design and fabrication of a low cost Darrieus vertical axis wing turbine system. Phase I. Technical report  

DOE Green Energy (OSTI)

The contract has two phases, a design phase and a fabrication and installation phase. Presented is the work completed in Phase I, the design phase. The Sandia 17 m was used as the background machine from which design information was drawn. By concentrating the modifications on an existing design, emphasis was focused on component cost reduction rather than selection of optimal configuration or operating modes. The resulting design is a stretched version of the Sandia 17 m preserving the same rotor diameter and many other good features, but in the meantime lighter in weight, larger in capacity, and anticipated to be more cost effective.

None,

1979-06-22T23:59:59.000Z

15

Phase 2 of the array automated assembly task for the low cost silicon solar array project. Interim report  

DOE Green Energy (OSTI)

The LSA Automated Array Assembly Task has as its goal the manufacture of photovoltaic modules at a capacity of 500 MW per year at a cost of $0.50 per peak watt. Divided between ten solar cell manufacturers, each installation should produce 50 MW per year. This implies that automated machinery would continuously produce 120 solar cells per minute. The purpose of this report is to detail the processes and techniques which are believed to have great promise of accomplishing this task. The initial stages of the program were involved in studying the possibility of automated assembly. Phase 1 reviewed a large cross section of processes, conceptual designs, and innovative technologies in preparation for 1986. Through this documentation, a large amount of comprehensive data has been collected. It is these reports upon which the next phase of the program is based. The purpose of Phase 2 is to propose an automated sequence, verify it and present future cost projections. Utilizing the large amount of information available from Phase 1 and drawing from its own experience Solarex has proposed a process sequence which it is believed has great potential of achieving the LSA goals. This report describes the processes, details, the verification tests performed, and estimates the cost of such an automated array assembly.

Wihl, M.; Toro, J.; Scheinine, A.; Anderson, J.

1978-11-01T23:59:59.000Z

16

Low Cost, Durable Seal  

SciTech Connect

Seal durability is critical to achieving the 2010 DOE operational life goals for both stationary and transportation PEM fuel cell stacks. The seal material must be chemically and mechanically stable in an environment consisting of aggressive operating temperatures, humidified gases, and acidic membranes. The seal must also be producible at low cost. Currentlyused seal materials do not meet all these requirements. This project developed and demonstrated a high consistency hydrocarbon rubber seal material that was able to meet the DOE technical and cost targets. Significant emphasis was placed on characterization of the material and full scale molding demonstrations.

Roberts, George; Parsons, Jason; Friedman, Jake

2010-12-17T23:59:59.000Z

17

Bio-Based Products | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

from biomass. These bioproducts, or bio-based products, are not only made from renewable sources, but they also often require less energy to produce than petroleum-based ones....

18

Low Cost Nanomaterials for PV Devices  

Impact: Low-cost solution for solar energy (Expand to lighting, batteries, etc) Low-cost Nanomaterials for PV Devices . Title: Slide 1 Author: Donna ...

19

Low Cost Hydrogen Production Platform  

DOE Green Energy (OSTI)

A technology and design evaluation was carried out for the development of a turnkey hydrogen production system in the range of 2.4 - 12 kg/h of hydrogen. The design is based on existing SMR technology and existing chemical processes and technologies to meet the design objectives. Consequently, the system design consists of a steam methane reformer, PSA system for hydrogen purification, natural gas compression, steam generation and all components and heat exchangers required for the production of hydrogen. The focus of the program is on packaging, system integration and an overall step change in the cost of capital required for the production of hydrogen at small scale. To assist in this effort, subcontractors were brought in to evaluate the design concepts and to assist in meeting the overall goals of the program. Praxair supplied the overall system and process design and the subcontractors were used to evaluate the components and system from a manufacturing and overall design optimization viewpoint. Design for manufacturing and assembly (DFMA) techniques, computer models and laboratory/full-scale testing of components were utilized to optimize the design during all phases of the design development. Early in the program evaluation, a review of existing Praxair hydrogen facilities showed that over 50% of the installed cost of a SMR based hydrogen plant is associated with the high temperature components (reformer, shift, steam generation, and various high temperature heat exchange). The main effort of the initial phase of the program was to develop an integrated high temperature component for these related functions. Initially, six independent concepts were developed and the processes were modeled to determine overall feasibility. The six concepts were eventually narrowed down to the highest potential concept. A US patent was awarded in February 2009 for the Praxair integrated high temperature component design. A risk analysis of the high temperature component was conducted to identify any potential design deficiency related to the concept. The analysis showed that no fundamental design flaw existed with the concept, but additional simulations and prototypes would be required to verify the design prior to fabricating a production unit. These identified risks were addressed in detail during Phase II of the development program. Along with the models of the high temperature components, a detailed process and 3D design model of the remainder of system, including PSA, compression, controls, water treatment and instrumentation was developed and evaluated. Also, in Phase II of the program, laboratory/fullscale testing of the high temperature components was completed and stable operation/control of the system was verified. The overall design specifications and test results were then used to develop accurate hydrogen costs for the optimized system. Praxair continued development and testing of the system beyond the Phase II funding provided by the DOE through the end of 2008. This additional testing is not documented in this report, but did provide significant additional data for development of a prototype system as detailed in the Phase III proposal. The estimated hydrogen product costs were developed (2007 basis) for the 4.8 kg/h system at production rates of 1, 5, 10, 100 and 1,000 units built per year. With the low cost SMR approach, the product hydrogen costs for the 4.8 kg/h units at 50 units produced per year were approximately $3.02 per kg. With increasing the volume production to 1,000 units per year, the hydrogen costs are reduced by about 12% to $2.67 per kg. The cost reduction of only 12% is a result of significant design and fabrication efficiencies being realized in all levels of production runs through utilizing the DFMA principles. A simplified and easily manufactured design does not require large production volumes to show significant cost benefits. These costs represent a significant improvement and a new benchmark in the cost to produce small volume on-site hydrogen using existing process technologies. The cost mo

Timothy M. Aaron, Jerome T. Jankowiak

2009-10-16T23:59:59.000Z

20

Bio-based ethylene able to replace petroleum as a ...  

Biomass and Biofuels Bio-based ethylene able to replace petroleum as a feedstock National Renewable Energy Laboratory. Contact NREL About This ...

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Silicon Materials Task of the Low Cost Solar Array Project (Phase II). Sixth quarterly report, 1 January 1977--March 31, 1977  

DOE Green Energy (OSTI)

Preliminary studies have been conducted to develop a foundation for the work to be carried out in Phase II of the program, which is designed to investigate the effects of processes and impurities on terrestrial silicon solar cells. Solar cells nearly 10% efficient (without AR coatings) can be made on p-type material with resistivities down to about 0.2 ..cap omega..-cm using a process similar to that employed during Phase I of the program. As resistivity falls below about 0.1 ..cap omega..-cm cell efficiency also falls and process instabilities become more prevalent. For this reason the resistivity of the baseline material chosen to study the combined effects of boron and metal doping will probably be in the 0.1 to 0.3 ..cap omega..-cm range. Initial studies on n-base material indicate that 0.2 ..mu..m deep junctions with adequate sheet resistivities can be obtained by boron diffusion from BBr/sub 3/ at 875/sup 0/C. Slow cooling from the diffusion temperature appears necessary to maintain good lifetime and I/sub sc/ values. p/sup +//n/n/sup +/ cells fabricated on a Westinghouse internal program using this type of processing produce coated cells with 16% efficiencies. Future studies will focus on metal impurity doping of low resistivity p-type and n-type substrates and on gettering and heat treatment effects in standard 4 ..cap omega..-cm p-type material.

Hopkins, R.H.; Davis, J.R.; Rai-Choudhury, P.; Blais, P.D.; McCormick, J.R.

1977-01-01T23:59:59.000Z

22

Silicon materials task of the low cost solar array project (Phase III): effect of impurities and processing on silicon solar cells. Fourteenth quarterly report, January-March 1979  

DOE Green Energy (OSTI)

The objective of this program is to determine how various processes, impurities, and impurity-process interactions affect the properties of silicon and the performance of terrestrial solar cells made from silicon. The data provide a basis for cost-benefit analysis to the producers and users of Solar Grade Silicon. The Phase III effort encompasses five major topics: (1) examination of the interaction of impurities with processing treatments, (2) generation of a data base and modeling of impurity effects in n-base solar cells, (3) extension of previous p-base studies to include impurities likely to be introduced during silicon production, refining or crystal growth, (4) a consideration of the potential impact of anisotropic (nonuniform) impurity distribution in large Czochralski and ribbon solar cells and, (5) a preliminary investigation of the permanence of impurity effects in silicon solar cells. During this quarter (1) the mechanisms responsible for impurity deactivation during high temperature gettering treatments was examined in detail, (2) the sead to tang and center to edge variation in Czechralski ingot properties for commercial-size ingots doped with Ti and Mn was evaluated, and (3) aging effects in solar cells doped with Ti or Mo were assessed. Also, an analysis of impurity effects on crystal structure breakdown, and the monitoring of ingot lifetimes by photoconductive decay lifetime measurement before and after processing were continued. The highlights of this work are described. (WHK)

Hopkins, R.H.; Davis, J.R.; Blais, P.D.; Rohatgi, A.; Campbell, R.B.; Rai-Choudhury, P.; Stapleton, R.E.; Mollenkopf, H.C.; McCormick, J.R.

1979-04-01T23:59:59.000Z

23

Bio-Based Product Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Bio-Based Product Basics Bio-Based Product Basics Bio-Based Product Basics August 14, 2013 - 1:19pm Addthis Almost all of the products we currently make from fossil fuels can also be made from biomass. These bioproducts, or bio-based products, are not only made from renewable sources, but they also often require less energy to produce than petroleum-based ones. Researchers have discovered that the process for making biofuels also can be used to make antifreeze, plastics, glues, artificial sweeteners, and gel for toothpaste. Other important building blocks for bio-based products are carbon monoxide and hydrogen. When biomass is heated with a small amount of oxygen, these two gases are produced in abundance. Scientists call this mixture biosynthesis gas. Biosynthesis gas can be used to make plastics and acids,

24

Bio-Based Product Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Bio-Based Product Basics Bio-Based Product Basics Bio-Based Product Basics August 14, 2013 - 1:19pm Addthis Almost all of the products we currently make from fossil fuels can also be made from biomass. These bioproducts, or bio-based products, are not only made from renewable sources, but they also often require less energy to produce than petroleum-based ones. Researchers have discovered that the process for making biofuels also can be used to make antifreeze, plastics, glues, artificial sweeteners, and gel for toothpaste. Other important building blocks for bio-based products are carbon monoxide and hydrogen. When biomass is heated with a small amount of oxygen, these two gases are produced in abundance. Scientists call this mixture biosynthesis gas. Biosynthesis gas can be used to make plastics and acids,

25

Establishment of the feasibility of a process capable of low cost, high volume production of silane (Phase I), and the pyrolysis of silane to semiconductor-grade silicon (Phase II). Low Cost Silicon Solar Array Project, Task I. Quarterly progress report, April--June 1977  

DOE Green Energy (OSTI)

The purpose of this program is to establish the practicality of a process for the high volume, low cost production of silane and its subsequent pyrolysis into a semi-conductive grade silicon metal. A small process develop unit for producing silane from dichlorosilane (DCS) using a tertiary amine functional ion exchange resin as a catalyst for a redistribution reaction has been operated successfully on what is now a routine basis. High quality silane has been produced in good yield and limiting equipment size has been identified. The silane gas product is essentially free of foreign compounds (to 5 ppM detection limit) and produces a silicon epitaxial film with a resistivity of 20 ohm cm and very strong ''N'' type character. Epi film quality was very good. The overall yield of silane was 92% of theory. The production rate, limited by the 2.66 cm diameter distillation column, was 112 g/hr. Design of a silicon tetrachloride (STC) hydrogenation reactor used to convert co-product STC to trichlorosilane has been completed and fabrication and installation are underway, as is a modification of the silane unit to permit use of trichlorosilane as feed, producing STC and silane. The production of silicon by the pyrolysis of silane is currently being accomplished in a free space reactor. The free space reactor product is a very fine powder which is then consolidated by melting. The melt is cast into rods. Analysis of the product from earlier experiments indicated that metal or graphite liners in the reaction chamber region resulted in product contamination. A quartz liner is currently being evaluated in the reaction chamber. Other identified contamination sources are air borne particles and contamination during melting and/or casting.

Breneman, W.C.; Farrier, E.G.; Mui, J.Y.P.; Rexer, J.

1977-10-01T23:59:59.000Z

26

Conversion of rice straw to bio-based chemicals: an integrated process using Lactobacillus brevis  

E-Print Network (OSTI)

Conversion of rice straw to bio-based chemicals: anbiomass as a feedstock for bio-based chemical production ispositive strain is used for bio-based chemical production

Kim, Jae-Han; Block, David E.; Shoemaker, Sharon P.; Mills, David A.

2010-01-01T23:59:59.000Z

27

Bio-Based Products Basics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Basics August 14, 2013 - 1:19pm Addthis Almost all of the products we currently make from fossil fuels can also be made from biomass. These bioproducts, or bio-based products, are...

28

A low cost high flux solar simulator  

E-Print Network (OSTI)

A low cost, high flux, large area solar simulator has been designed, built and characterized for the purpose of studying optical melting and light absorption behavior of molten salts. Seven 1500 W metal halide outdoor ...

Codd, Daniel S.

29

MHK Technologies/bioBase | Open Energy Information  

Open Energy Info (EERE)

bioBase bioBase < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage BioBase.jpg Technology Profile Primary Organization BioPower Systems Pty Ltd Technology Resource Click here Wave Technology Type Click here Seabed mooring system Technology Readiness Level Click here TRL 1 3 Discovery Concept Def Early Stage Dev Design Engineering Technology Description BioPower Systems has developed a novel singular mounting system called bioBASE This system is modeled on the seabed holdfast mechanism used by large sea plants such as the giant kelp In such systems the vertical and lateral loads that are translated to the seabed by the main shaft are re distributed into many smaller elements that engage with the bottom strata This mechanism serves to distribute the forces and alleviate excess loads The bioBASE utilises rockbolting technology for the multiple roots of the system and does not require large specialised vessels or drill rigs due to the small gauge of each bolt

30

Durable, Low Cost, Improved Fuel Cell Membranes  

NLE Websites -- All DOE Office Websites (Extended Search)

Durable, Low-cost, Improved Durable, Low-cost, Improved Fuel Cell Membranes US Department of Energy Office of Hydrogen, Fuel Cells and Infrastructure Technologies Kickoff Meeting, Washington DC, February 13, 2007 Michel Fouré Project Objectives z To develop a low cost (vs. perfluorosulfonated ionomers), durable membrane. z To develop a membrane capable at 80°C at low relative humidity (25-50%). z To develop a membrane capable of operating at 120°C for brief periods of time. z To elucidate membrane degradation and failure mechanisms. U:jen/slides/pres.07/FC kickoff Washington DC 2-13-07 2 Technical Barriers Addressed z Membrane Cost z Membrane Durability z Membrane capability to operate at low relative humidity. z Membrane capability to operate at 120ºC for brief period of times.

31

Bio-based Thermochromic Intelligent Roof Coating Research Project |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

based Thermochromic Intelligent Roof based Thermochromic Intelligent Roof Coating Research Project Bio-based Thermochromic Intelligent Roof Coating Research Project The Department of Energy is conducting research into bio-based thermochromic intelligent roof coatings. The coatings are developed from waste cooking oil. Project Description This project seeks to develop and demonstrate a waste cooking oil-based thermochromic smart roof coating technology that will adjust light transmission in response to temperature changes. This will reduce energy demands for temperature regulation. The project will also study the effects of different oil sources on coating properties. Project Partners This project is being undertaken between the Department of Energy and United Environment & Energy. Project Goals

32

Low-Cost Installation of Concentrating Photovoltaic  

E-Print Network (OSTI)

Low-Cost Installation of Concentrating Photovoltaic Renewable Energy Research Renewable Energy Research http://www.energy.ca.gov/research/renewabl e/index.html August 2011 The Issue Several factors inhibit the potential growth of the California photovoltaic market: high installation costs, expenses

33

Low-cost nanosecond electronic coincidence detector  

E-Print Network (OSTI)

We present a simple and low-cost implementation of a fast electronic coincidence detector based on PECL logic with a TTL-compatible interface. The detector has negligible dead time and the coincidence window is adjustable with a minimum width of 1 ns. Coincidence measurements of two independent sources of Bose-Einstein distributed photocounts are presented using different coincidence window widths.

Kim, T; Gorelik, P V; Wong, F N C; Kim, Taehyun; Fiorentino, Marco; Gorelik, Pavel V.; Wong, Franco N. C.

2005-01-01T23:59:59.000Z

34

Low-cost inertial measurement unit.  

Science Conference Proceedings (OSTI)

Sandia National Laboratories performs many expensive tests using inertial measurement units (IMUs)--systems that use accelerometers, gyroscopes, and other sensors to measure flight dynamics in three dimensions. For the purpose of this report, the metrics used to evaluate an IMU are cost, size, performance, resolution, upgradeability and testing. The cost of a precision IMU is very high and can cost hundreds of thousands of dollars. Thus the goals and results of this project are as follows: (1) Examine the data flow in an IMU and determine a generic IMU design. (2) Discuss a high cost IMU implementation and its theoretically achievable results. (3) Discuss design modifications that would save money for suited applications. (4) Design and implement a low cost IMU and discuss its theoretically achievable results. (5) Test the low cost IMU and compare theoretical results with empirical results. (6) Construct a more streamlined printed circuit board design reducing noise, increasing capabilities, and constructing a self-contained unit. Using these results, we can compare a high cost IMU versus a low cost IMU using the metrics from above. Further, we can examine and suggest situations where a low cost IMU could be used instead of a high cost IMU for saving cost, size, or both.

Deyle, Travis Jay

2005-03-01T23:59:59.000Z

35

Low Cost High Concentration PV Systems for Utility Power Generation...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Other Agencies You are here Home Low Cost High Concentration PV Systems for Utility Power Generation Low Cost High Concentration PV Systems for Utility Power Generation An...

36

Low Cost High Concentration PV Systems for Utility Power Generation...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Other Agencies You are here Home Low Cost High Concentration PV Systems for Utility Power Generation Amonix, Inc. Low Cost High Concentration PV Systems for Utility Power...

37

Low-Cost, Lightweight Solar Concentrators  

NLE Websites -- All DOE Office Websites (Extended Search)

Concentrators Concentrators California Institute of Technology/Jet Propulsion Laboratory Award Number:0595-1612 | January 15, 2013 | Ganapathi Thin Film mirror is ~40-50% cheaper and 60% lighter than SOA * Project leverages extensive space experience by JPL and L'Garde to develop a low-cost parabolic dish capable of providing 4 kW thermal. Key features: * Metallized reflective thin film material with high reflectivity (>93%) with polyurethane foam backing * Single mold polyurethane backing fabrication enables low cost high production manufacturing * Ease of panel installation and removal enables repairs and results in a low total life cycle cost * Deployment of multiple dishes enhances system level optimizations by simulating larger fields which addresses issues like shared resources

38

Low-cost laser diode array  

DOE Patents (OSTI)

A substrate is used to fabricate a low-cost laser diode array. A substrate is machined from an electrically insulative material that is thermally conductive, or two substrates can be bonded together in which the top substrate is electrically as well as thermally conductive. The substrate thickness is slightly longer than the cavity length, and the width of the groove is wide enough to contain a bar and spring (which secures the laser bar firmly along one face of the groove). The spring also provides electrical continuity from the backside of the bar to the adjacent metalization layer on the laser bar substrate. Arrays containing one or more bars can be formed by creating many grooves at various spacings. Along the groove, many bars can be adjoined at the edges to provide parallel electrical conduction. This architecture allows precise and predictable registration of an array of laser bars to a self-aligned microlens array at low cost. 19 figs.

Freitas, B.L.; Skidmore, J.A.

1999-06-01T23:59:59.000Z

39

Low-cost laser diode array  

DOE Patents (OSTI)

A substrate is used to fabricate a low-cost laser diode array. A substrate is machined from an electrically insulative material that is thermally conductive, or two substrates can be bonded together in which the top substrate is electrically as well as thermally conductive. The substrate thickness is slightly longer than the cavity length, and the width of the groove is wide enough to contain a bar and spring (which secures the laser bar firmly along one face of the groove). The spring also provides electrical continuity from the backside of the bar to the adjacent metalization layer on the laser bar substrate. Arrays containing one or more bars can be formed by creating many grooves at various spacings. Along the groove, many bars can be adjoined at the edges to provide parallel electrical conduction. This architecture allows precise and predictable registration of an array of laser bars to a self-aligned microlens array at low cost.

Freitas, Barry L. (Livermore, CA); Skidmore, Jay A. (Livermore, CA)

1999-01-01T23:59:59.000Z

40

Building Bio-based Supply Chains: Theoretical Perspectives on Innovative Contract Design  

E-Print Network (OSTI)

as a Biofuel Feedstock in Iowas Bio-economy: An Iowa FarmerB IOENERGY 347 BUILDING BIO-BASED SUPPLY CHAINS pollution. 7Production of Alamo BUILDING BIO-BASED SUPPLY CHAINS The

Endres, Jody M.; Endres, A. Bryan; Stoller, Jeremy J.

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Properties of low cost, high volume glasses  

DOE Green Energy (OSTI)

The properties of new and weathered samples of low cost, high volume glasses have been studied to determine their usefulness for solar energy applications. Glasses of varying compositions produced by float, drawn, rolled fusion, and twin ground techniques were examined. Spectral transmittance and reflectance were measured and solar weighted values calculated. Laser raytrace techniques were used to evaluate surface parallelism and bulk homogeneity. Compositional changes were examined with scanning electron microscopy, x-ray fluorescence, and Auger electron spectroscopy. These techniques were used in conjunction with ellipsometry to study the surface effects associated with weathering.

Lind, M. A.; Hartman, J. S.; Buckwalter, C. Q.

1979-01-01T23:59:59.000Z

42

Silicon materials task of the low cost solar array project (Phase III). Effects of impurities and processing on silicon solar cells. Phase III summary and seventeenth quarterly report, Volume 2: analysis of impurity behavior  

DOE Green Energy (OSTI)

The object of this phase of the program has been to investigate the effects of various processes, metal contaminants and contaminant-process interactions on the properties of silicon and on the performance of terrestrial silicon solar cells. The study encompassed topics including thermochemical (gettering) treatments, base doping concentration, base doping type (n vs. p), grain boundary-impurity interaction, non-uniformity of impurity distribution, long term effects of impurities, as well as synergic and complexing phenomena. The program approach consists in: (1) the growth of doubly and multiply-doped silicon single crystals containing a baseline boron or phosphorus dopant and specific impurities which produce deep levels in the forbidden band gap; (2) assessment of these crystals by chemical, microstructural, electrical and solar cell tests; (3) correlation of the impurity type and concentration with crystal quality and device performance; and (4) delineation of the role of impurities and processing on subsequent silicon solar cell performance. The overall results reported are based on the assessment of nearly 200 silicon ingots. (WHK)

Hopkins, R.H.; Davis, J.R.; Rohatgi, A.; Campbell, R.B.; Blais, P.D.; Rai-Choudhury, P.; Stapleton, R.E.; Mollenkopf, H.C.; McCormick, J.R.

1980-01-23T23:59:59.000Z

43

Building Technologies Office: Bio-Based Phase Change Materials...  

NLE Websites -- All DOE Office Websites (Extended Search)

& Beyond Design Competition Buildings to Grid Integration Technology Research, Standards, & Codes Popular Links Success Stories Previous Next Lighten Energy Loads with System...

44

SunShot Initiative: Low-Cost Heliostat Development  

NLE Websites -- All DOE Office Websites (Extended Search)

Low-Cost Heliostat Development to Low-Cost Heliostat Development to someone by E-mail Share SunShot Initiative: Low-Cost Heliostat Development on Facebook Tweet about SunShot Initiative: Low-Cost Heliostat Development on Twitter Bookmark SunShot Initiative: Low-Cost Heliostat Development on Google Bookmark SunShot Initiative: Low-Cost Heliostat Development on Delicious Rank SunShot Initiative: Low-Cost Heliostat Development on Digg Find More places to share SunShot Initiative: Low-Cost Heliostat Development on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage CSP Recovery Act Baseload CSP SunShot Multidisciplinary University Research Initiative CSP Heat Integration for Baseload Renewable Energy Deployment National Laboratory Research & Development

45

SunShot Initiative: Low-Cost Solar Thermal Collector  

NLE Websites -- All DOE Office Websites (Extended Search)

Low-Cost Solar Thermal Collector Low-Cost Solar Thermal Collector to someone by E-mail Share SunShot Initiative: Low-Cost Solar Thermal Collector on Facebook Tweet about SunShot Initiative: Low-Cost Solar Thermal Collector on Twitter Bookmark SunShot Initiative: Low-Cost Solar Thermal Collector on Google Bookmark SunShot Initiative: Low-Cost Solar Thermal Collector on Delicious Rank SunShot Initiative: Low-Cost Solar Thermal Collector on Digg Find More places to share SunShot Initiative: Low-Cost Solar Thermal Collector on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage CSP Recovery Act Baseload CSP SunShot Multidisciplinary University Research Initiative CSP Heat Integration for Baseload Renewable Energy Deployment National Laboratory Research & Development

46

SunShot Initiative: Low-Cost, Lightweight Solar Concentrators  

NLE Websites -- All DOE Office Websites (Extended Search)

Low-Cost, Lightweight Solar Concentrators to someone by E-mail Share SunShot Initiative: Low-Cost, Lightweight Solar Concentrators on Facebook Tweet about SunShot Initiative:...

47

NETL: Syngas Processing Systems - Low-cost, Environmental Friendly...  

NLE Websites -- All DOE Office Websites (Extended Search)

Low-cost, Environmental Friendly Thermal Storage for CO2 Sequestration Project Number: DE-SC00008425 Creare, Inc. has designed a compact, low-cost, reversible Combined Thermal and...

48

The potential for low-cost airlines in Asia  

E-Print Network (OSTI)

The purpose of this thesis is to assess the potential for low-cost airlines in Asia. Low-cost airlines have been very successful in North America and Europe and have significantly impacted the airline industry and its ...

Dietlin, Philipp, 1979-

2004-01-01T23:59:59.000Z

49

A HIGH PERFORMANCE/LOW COST ACCELERATOR CONTROL SYSTEM  

E-Print Network (OSTI)

LOW COST ACCELERATOR CONTROL SYSTEM S. Hagyary, J. Glat H.LOW COST ACCELERATOR CONTROL SYSTEM S. Magyary, J. Glatz, H.a high performance computer control system tailored to the

Magyary, S.

2010-01-01T23:59:59.000Z

50

Low Cost Titanium Powder Development for Additive Manufacturing ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2013 TMS Annual Meeting & Exhibition. Symposium , Cost Affordable Titanium IV. Presentation Title, Low Cost Titanium Powder...

51

Hot Electron Photovoltaics Using Low Cost Materials and Simple ...  

Hot Electron Photovoltaics Using Low Cost Materials and Simple Cell Design Lawrence Berkeley National Laboratory. Contact LBL About This Technology

52

Low-Cost Manufacturing of Fuel Cell Bipolar Plates by ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2009. Symposium, Emerging Material Forming Technologies. Presentation Title, Low-Cost...

53

Silicon Materials Task of the Low Cost Solar Array Project (Phase II). Effect of impurities and processing on silicon solar cells. Tenth quarterly report, 1 January 1978--31 March 1978  

DOE Green Energy (OSTI)

The objective of this program is to determine how various processes, impurities and impurity-process interactions affect the properties of silicon and the performance of terrestrial solar cells made from silicon. The development of this data base permits the definition of the tolerable impurity levels in a low-cost solar grade silicon and identifies processes which mitigate or enhance impurity effects in silicon. The data further provide the silicon manufacturer with a means to select materials of construction which minimize product contamination and permit the cost effective selection of chemical processes for silicon purification. For the silicon ingot, sheet or ribbon manufacturer the data suggest what silicon feedstock purity must be selected to produce wafers suitable for cell production and what furnace materials minimize wafer contamination. The cell manufacturer may use the data to define an acceptable wafer purity for cell processing or to identify processes which minimize impurity impact on efficiency. In short the data provide a basis for cost-benefit analysis to the producers and users of Solar Grade Silicon. During this quarter the focus of the experimental activity has been in the following four areas: (1) effects of crystal growth rate and thermal processing of silicon on impurity distribution and electrical activity, (2) impurity-grain boundary interactions in polycrystalline silicon, (3) preliminary measurements of impurity trap levels, trap concentrations and capture cross sections by Deep Level Transient Spectroscopy of purposely contaminated solar cells and (4) improvement of the solar cell-impurity concentration data base for n- and p-type silicon for subsequent modeling studies.

Hopkins, R.H.; Davis, J.R.; Blais, P.D.; Rohatgi, A.; Rai-Choudhury, P.; Hanes, M.H.; McCormick, J.R.

1978-01-01T23:59:59.000Z

54

NETL: Mercury Emissions Control Technologies - Low-Cost Options for  

NLE Websites -- All DOE Office Websites (Extended Search)

Low-Cost Options for Moderate Levels of Mercury Control Low-Cost Options for Moderate Levels of Mercury Control ADA- Environmental Solutions will test two new technologies for mercury control. The TOXECON II(tm) technology injects activated carbon directly into the downstream collecting fields of an electrostatic precipitator. The benefit of this technology is that the majority of the fly ash is collected in the upstream collecting fields which results in only a small portion of carbon-contaminated ash. Additionally, the TOXECON II(tm) technology requires minimal capital investment as only minor retrofits to the electrostatic precipitator are needed. The second technology is injection of novel sorbents for mercury removal on units with hot-side electrostatic precipitators (ESPs). Mercury removal from hot-side electrostatic precipitators is difficult as their high operating temperature range keeps the mercury in the vapor phase and prevents the mercury from adsorbing onto sorbents. The TOXECON II(tm) technology will be tested at Entergy's Independence Station which burns PRB coal. The novel sorbents for hot-side ESPs technology will be tested at MidAmerican's Council Bluffs Energy Center and MidAmerican's Louisa Station, both of which burn PRB coal. Additional project partners include EPRI, MidAmerican, Entergy, Alliant, ATCO Power, DTE Energy, Oglethorpe Power, Norit Americas Inc., Xcel Energy, Southern Company, Arch Coal, and EPCOR.

55

Circofer -- Low cost approach to DRI production  

SciTech Connect

Lurgi's Circofer Process for reducing fine ores with coal in a Circulating Fluidized Bed (CFB) is a direct approach by using a widely applied and proven reactor in commercializing a state of the art technology. The technology is in response to the demand for a direct reduction process of the future by making possible: the use of low cost ore fines and inexpensive primary energy, fine coal; production of a high grade product used as feedstock by mini mills with the additional advantage of dilution of contaminants introduced by scrap; low environmental impact; and low specific investment costs due to the closed energy circuit. With the incorporation of the latest developments in CFB technology, Circofer offers excellent heat and mass transfer conditions and, consequently, improved gas and energy utilization. High gas conversions using recycle gas have a positive influence on the process economics whereby no export gas is produced. Sticking, accretion and reoxidation problems, which have plagued all previous attempts at developing direct reduction processes using fine ore and coal as a reductant, are avoided, essentially by operating with defined amounts of excess carbon and separation of the reduction and gasifying zones.

Weber, P.; Bresser, W.; Hirsch, M. (Lurgi Metallurgie GmbH, Frankfurt (Germany))

1994-09-01T23:59:59.000Z

56

Low-Cost Illumination-Grade LEDs  

SciTech Connect

Solid State Lighting is a cost-effective, energy-conserving technology serving a rapidly expand- ing multi-billion dollar market. This program was designed to accelerate this lighting revolution by reducing the manufacturing cost of Illumination-Grade LEDs. The technical strategy was to investigate growth substrate alternatives to standard planar sapphire, select the most effective and compatible option, and demonstrate a significant increase in Lumen/$ with a marketable LED. The most obvious alternate substrate, silicon, was extensively studied in the first two years of the program. The superior thermal and mechanical properties of Si were expected to improve wavelength uniformity and hence color yield in the manufacture of high-power illumination- grade LEDs. However, improvements in efficiency and epitaxy uniformity on standard c-plane sapphire diminished the advantages of switching to Si. Furthermore, the cost of sapphire decreased significantly and the cost of processing Si devices using our thin film process was higher than expected. We concluded that GaN on Si was a viable technology but not a practical option for Philips Lumileds. Therefore in 2012 and 2013, we sought and received amendments which broadened the scope to include other substrates and extended the time of execution. Proprietary engineered substrates, off-axis (non-c-plane) sapphire, and c-plane patterned sapphire substrates (PSS) were all investigated in the final 18 months of this program. Excellent epitaxy quality was achieved on all three candidates; however we eliminated engineered substrates and non-c-plane sapphire because of their higher combined cost of substrate, device fabrication and packaging. Ultimately, by fabricating a flip-chip (FC) LED based upon c-plane PSS we attained a 42% reduction in LED manufacturing cost relative to our LUXEON Rebel product (Q1-2012). Combined with a flux gain from 85 to 102 Lm, the LUXEON Q delivered a 210% increase in Lm/$ over this time period. The technology was commercialized in our LUXEON Q product in Sept., 2013. Also, the retention of the sapphire increased the robustness of the device, enabling sales of low-cost submount-free chips to lighting manufacturers. Thus, blue LED die sales were initiated in the form of a PSS-FC in February, 2013.

Epler, John

2013-08-31T23:59:59.000Z

57

Low Cost Processing: Plasma, Microwave, Laser, Melting and Casting  

Science Conference Proceedings (OSTI)

Mar 5, 2013 ... Cost Affordable Titanium IV: Low Cost Processing: Plasma, ... obtained by using microwave energy as the consolidation method of Mg-Ti alloys.

58

Research and Development of Low-cost Titanium Alloys for ...  

Science Conference Proceedings (OSTI)

Therefore, low-cost elements such as Fe, Mn, Cr, O, and N are gaining attention in titanium alloy design for biomedical applications. For biomedical applications...

59

Low-Cost Printable Wireless Sensors for Buildings Applications  

Low-Cost Printable Wireless Sensors for Buildings Applications Note: The technology described above is an early stage opportunity. Licensing rights to this ...

60

Very Low Cost Manufacturing of Titanium Alloy Components  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2010 TMS Annual Meeting & Exhibition. Symposium , Cost-Affordable Titanium III. Presentation Title, Very Low Cost Manufacturing...

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Low Cost Materials and Processing - Programmaster.org  

Science Conference Proceedings (OSTI)

Feb 15, 2010 ... Cost-Affordable Titanium III: Low Cost Materials and Processing Sponsored by: The Minerals, Metals and Materials Society, TMS Structural...

62

Low-Cost Prosthetics within Reach with Recycled Materials  

Science Conference Proceedings (OSTI)

Apr 19, 2010 ... Prohibitive costs aside, the design of standard prosthetic arms does ... A more recent computer rendering of the team's low-cost prosthetic arm.

63

Development of Low-cost Functional Geopolymeric Materials  

Science Conference Proceedings (OSTI)

Presentation Title, Development of Low-cost Functional Geopolymeric Materials. Author(s), Mazen Alshaaer, Rushdi Yousef, Bassam El-Eswed, Hani Khoury,...

64

New Concept of Ultra Low Cost Chemically Bonded Ceramic ...  

Science Conference Proceedings (OSTI)

Presentation Title, New Concept of Ultra Low Cost Chemically Bonded Ceramic Materials Fabricated From Traditional Fillers and Wastes. Author(s), Henry A.

65

Low Cost Exploration, Testing, And Development Of The Chena Geothermal...  

Open Energy Info (EERE)

Cost Exploration, Testing, And Development Of The Chena Geothermal Resource Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Low Cost Exploration,...

66

Improved Solar Power Plant Efficiency: Low Cost Solar Irradiance Sensor  

A University of Colorado research group led by Fernando Mancilla-David has developed a low cost irradiance sensor using a network modeled on a neural ...

67

Low Cost: Additive Manufacturing and Metal Injection molding  

Science Conference Proceedings (OSTI)

Mar 4, 2013 ... The production of low cost titanium products from synthesized titanium powders, sponge, and other particulates has the potential to enable a...

68

Five Low Cost Methods to Improve Energy Efficiency on ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2010 TMS Annual Meeting & Exhibition. Symposium , Energy Conservation in Metals. Presentation Title, Five Low Cost Methods to...

69

ESS 2012 Peer Review - Low Cost and Highly Selective Composite...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Low Cost and Highly Selective Composite Membrane for Redox Flow Batteries Fei Wang, Dharmasena Peramunage, James M. Sylvia, and Monsy M. Jocob EIC Laboratories, Inc. 111 Downey...

70

Available Technologies: Low-cost, Efficient, Flexible Solar ...  

3D solar cell of nanopillars. ... Layered Nanocrystal Photovoltaic Cells, IB-2511 . Hot Electron Photovoltaics Using Low Cost Materials and Simple Cel ...

71

Manufacturing Demonstration Facility Low-Cost Carbon Fiber Available...  

NLE Websites -- All DOE Office Websites (Extended Search)

Low-Cost Carbon Fiber Available to US Manufacturers for Market Development and Demonstration Oak Ridge National Laboratory (ORNL) is making available market development quantities...

72

High Volume Method of Making Low Cost, Lightweight Solar Materials  

ORNL 2010-G00644/jcn UT-B ID 201002380 High Volume Method of Making Low Cost, Lightweight Solar Materials Technology Summary A critical challenge for ...

73

Low Cost TiO2 Nanoparticles - Energy Innovation Portal  

Solar Photovoltaic Advanced Materials Low Cost TiO2 Nanoparticles Sandia National Laboratories. Contact SNL About This Technology Publications: Market ...

74

High Temperature Stainless Steel Alloy with Low Cost Manganese  

High Temperature Stainless Steel Alloy with Low Cost Manganese ... Power industry components such as boiler tubing and piping, pressure vessels, chemical

75

Design of small, low-cost, underwater fin manipulator.  

E-Print Network (OSTI)

??This thesis details the development of a small, low cost, underwater manipulator for use on the XAUV. At this time, there are no cheap underwater (more)

Roberts, Megan Johnson

2008-01-01T23:59:59.000Z

76

IQ-Station: a low cost portable immersive environment  

Science Conference Proceedings (OSTI)

The emergence of inexpensive 3D-TVs, affordable input and rendering hardware and open-source software has created a yeasty atmosphere for the development of low-cost immersive systems. A low cost system (here dubbed an IQ-station), fashioned from commercial ...

William R. Sherman; Patrick O'Leary; Eric T. Whiting; Shane Grover; Eric A. Wernert

2010-11-01T23:59:59.000Z

77

A Novel Low-Cost Sodium-Zinc Chloride Battery  

Science Conference Proceedings (OSTI)

The sodium-metal halide (ZEBRA) battery has been considered as one of the most attractive energy storage systems for stationary and transportation applications. Even though Na-NiCl2 battery has been widely investigated, there is still a need to develop a more economical system to make this technology more attractive for commercialization. In the present work, a novel low-cost Na-ZnCl2 battery with a thin planar ??-Al2O3 solid electrolyte (BASE) was proposed, and its electrochemical reactions and battery performance were investigated. Compared to the Na-NiCl2 chemistry, the ZnCl2-based chemistry was more complicated, in which multiple electrochemical reactions including liquid-phase formation occurred at temperatures above 253C. During the first stage of charge, NaCl reacted with Zn to form Na in the anode and Na2ZnCl4 in the cathode. Once all the residual NaCl was consumed, further charging led to the formation of a NaCl-ZnCl2 liquid phase. At the end of charge, the liquid phase reacted with Zn to produce solid ZnCl2. To identify the effects of liquid-phase formation on electrochemical performance, button cells were assembled and tested at 280C and 240C. At 280C where the liquid phase formed during cycling, cells revealed quite stable cyclability. On the other hand, more rapid increase in polarization was observed at 240C where only solid-state electrochemical reactions occurred. SEM analysis indicated that the stable performance at 280C was due to the suppressed growth of Zn and NaCl particles, which were generated from the liquid phase during discharge of each cycle.

Lu, Xiaochuan; Li, Guosheng; Kim, Jin Yong; Lemmon, John P.; Sprenkle, Vincent L.; Yang, Zhenguo

2013-02-28T23:59:59.000Z

78

Development of a Low-Cost Rotary Steerable Drilling System  

DOE Green Energy (OSTI)

The project had the goal to develop and commercialize a low-cost rotary steerable system (LCRSS) capable of operating downhole at conventional pressures and temperatures to reduce operating costs by a minimum of 50% and lost-in-hole charges by at least 50% over the currently offered systems. The LCRSS system developed under this project does reduce operating costs by 55% and lost-in-hole charges by at least 50%. The developed product is not commercializable in its current form. The overall objective was to develop and commercialize a low cost rotary steerable system (LCRSS) capable of operating downhole at conventional pressures and temperatures (20,000 psi/150 C) while reducing the operating costs by 50% and the lost-in-hole charges by 50% over the currently available systems. The proposed reduction in costs were to be realized through the significant reduction in tool complexity, a corresponding increase in tool reliability as expressed in the mean-time between failure (MTBF), and a reduction in the time and costs required to service tools after each field operation. Ultimately, the LCRSS system was to be capable of drilling 7 7/8 in. to 9 5/8 in. borehole diameters. The project was divided into three Phases, of which Phases I & II were previously completed and reported on, and are part of the case file. Therefore, the previously reported information is not repeated herein. Phase III included the fabrication of two field ready prototypes that were to be subjected to a series of drilling tests at GTI Catoosa, DOE RMOTC, and at customer partnering wells, if possible, as appropriate in the timing of the field test objectives to fully exercise all elements of the LCRSS. These tests were conducted in an iterative process based on a performance/reliability improvement cycle with the goal of demonstrating the system met all aspects required for commercial viability. These tests were conducted to achieve continuous runs of 100+ hours with well trajectories that fully exercised the tool's build/turn/drop/hold target capabilities and its higher end ratings for bit weight, torque and rotary speed. The tool teardowns were rigorously analyzed at the conclusion of each field run to assess component wear rates and to fully document any detrimental behavior(s) observed.

Roney Nazarian

2012-01-31T23:59:59.000Z

79

Low Cost Reversible fuel cell systems  

DOE Green Energy (OSTI)

This final report summarizes a 3-phase program performed from March 2000 through September 2003 with a particular focus on Phase III. The overall program studied TMI's reversible solid oxide stack, system concepts, and potential applications. The TMI reversible (fuel cell-electrolyzer) system employs a stack of high temperature solid-oxide electrochemical cells to produce either electricity (from a fuel and air or oxygen) or hydrogen (from water and supplied electricity). An atmospheric pressure fuel cell system operates on natural gas (or other carbon-containing fuel) and air. A high-pressure reversible electrolyzer system is used to make high-pressure hydrogen and oxygen from water and when desired, operates in reverse to generate electricity from these gases.

Technology Management Inc.

2003-12-30T23:59:59.000Z

80

Silicon materials task of the low cost solar array project(Phase III): effect of impurities and processing on silicon solar cells. Thirteenth quarterly report, October--December 1978  

DOE Green Energy (OSTI)

The objective of the program is to define the effects of impurities, various thermochemical processes and any impurity--process interactions on the performance of terrestrial silicon solar cells. Gettering experiments with phosphorus oxychloride gas phase treatments at 950/sup 0/C, 1000/sup 0/C, and 1150/sup 0/C have been completed for two Ti-doped ingots (3 x 10/sup 13/ cm/sup -3/ and 2.1 x 10/sup 14/ cm/sup -3/ Ti doping levels, respectively), two molybdenum doped ingots (8 x 10/sup 11/ and 4.2 x 10/sup 12/ cm/sup -3/ Mo) and one iron-doped ingot (3 x 10/sup 14/ cm/sup -3/ Fe). First generation Co and W-doped ingots were grown and processed to solar cells. Miniature solar cells and diodes were used to map the characteristics of wafers from a 3 inch diameter ingot doped with Mn or Ti. A model has been developed to describe the behavior of solar cells bearing non-uniform distributions of impurities or defects.

Hopkins, R.H.; Davis, J.R.; Blais, P.D.; Rohatgi, A.; Campbell, R.B.; Rai-Choudhury, P.; Mollenkopf, H.C.; McCormick, J.R.

1979-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Low cost private education in India : challenges and way forward  

E-Print Network (OSTI)

The Low Cost Private School phenomenon has gained momentum and increased visibility in recent years as researchers have begun to map and record the existence of millions of private schools that cater to the education needs ...

Garg, Nupur, M.B.A. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

82

Low Cost Solar Water Heating R&D  

NLE Websites -- All DOE Office Websites (Extended Search)

Template Low Cost Solar Water Heating R&D Kate Hudon National Renewable Energy Laboratory Kate.hudon@nrel.gov 303-275-3190 April 3, 2013 2 | Building Technologies Office...

83

Low-cost exterior insulation process and structure  

DOE Patents (OSTI)

A low-cost exterior insulation process of stacking bags of insulating material against a wall and covering them with wire mesh and stucco provides a durable structure with good insulating value.

Vohra, Arun (Bethesda, MD)

1999-01-01T23:59:59.000Z

84

Low-cost exterior insulation process and structure  

DOE Patents (OSTI)

A low-cost exterior insulation process of stacking bags of insulating material against a wall and covering them with wire mesh and stucco provides a durable structure with good insulating value. 2 figs.

Vohra, A.

1999-03-02T23:59:59.000Z

85

Low Cost Aqueous Electrolyte Based Energy Storage: Materials and ...  

Science Conference Proceedings (OSTI)

Presentation Title, Low Cost Aqueous Electrolyte Based Energy Storage: Materials and ... Deployment of New High Temperature Alloys for Power Generation Systems Designing ... Materials Metrology for a Hydrogen Distribution Infrastructure.

86

Low-cost electromagnetic tagging : design and implementation  

E-Print Network (OSTI)

Several implementations of chipless RFID (Radio Frequency Identification) tags are presented and discussed as low-cost alternatives to chip-based RFID tags and sensors. An overview of present-day near-field electromagnetic ...

Fletcher, Richard R. (Richard Ribon)

2002-01-01T23:59:59.000Z

87

Demonstrating Innovative Low-Cost Carbon Fiber for Energy and...  

NLE Websites -- All DOE Office Websites (Extended Search)

Innovative Low-Cost Carbon Fiber for Energy and National Security Applications Front-end creel for processing precursor in tow format In-line melt spinning for precursor...

88

A microelectronic design for low-cost disposable chemical sensors  

E-Print Network (OSTI)

This thesis demonstrates the novel concept and design of integrated microelectronics for a low-cost disposable chemical sensor. The critical aspects of this chemical sensor are the performance of the microelectronic chip ...

Laval, Stuart S. (Stuart Sean), 1980-

2004-01-01T23:59:59.000Z

89

Development and performance of a miniature, low cost mass spectrometer  

E-Print Network (OSTI)

A miniature, low cost mass spectrometer has been developed that is capable of unit resolution over a mass range of 10 to 50 AMU. The design of the mass spectrometer incorporates several new features that enhance the ...

Hemond, Brian D. (Brian David Thomson)

2011-01-01T23:59:59.000Z

90

Development of a low-cost underwater manipulator.  

E-Print Network (OSTI)

??This thesis describes the design, modeling, manufacture, and testing of a low cost, multiple degree-of-freedom underwater manipulator. Current underwater robotic arm technologies are often expensive (more)

Cooney, Lauren Alise

2006-01-01T23:59:59.000Z

91

Development of a low-cost underwater manipulator  

E-Print Network (OSTI)

This thesis describes the design, modeling, manufacture, and testing of a low cost, multiple degree-of-freedom underwater manipulator. Current underwater robotic arm technologies are often expensive or limited in functionality. ...

Cooney, Lauren Alise

2006-01-01T23:59:59.000Z

92

Design of small, low-cost, underwater fin manipulator  

E-Print Network (OSTI)

This thesis details the development of a small, low cost, underwater manipulator for use on the XAUV. At this time, there are no cheap underwater servos commercially available. The design involves modifying a commercially ...

Roberts, Megan Johnson

2008-01-01T23:59:59.000Z

93

Development and Evaluation of Low Cost Mercury Sorbents  

Science Conference Proceedings (OSTI)

EPRI is conducting research to investigate sorbent injection for mercury removal in utility flue gas. This report describes laboratory work conducted from mid-1999 through mid-2000 to investigate the ability of low-cost sorbents to remove mercury from simulated and actual flue gas. The goal of this program is the development of effective mercury sorbents that can be produced at lower costs than existing commercial activated carbons. In this work, low-cost sorbents were prepared and then evaluated in labo...

2000-11-27T23:59:59.000Z

94

Low Cost Fabrication of Oxide Dispersion Strengthened Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

Low Cost Fabrication of Oxide Dispersion Low Cost Fabrication of Oxide Dispersion Strengthened Materials Background To obtain significant increases in the efficiency of coal fired power plants, steam pressure and temperature must be increased beyond current technology to advanced ultra-supercritical (A-USC) conditions -temperatures and pressures up to 760 degrees Celsius (°C) and 35 megapascals (MPa). The upper bounds of operating pressure and temperature are limited by the properties of the current set

95

Low-Cost Solutions for Dynamic Window Material  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Low-cost Solutions For Dynamic Low-cost Solutions For Dynamic Window Materials André Anders Lawrence Berkeley National Laboratory aanders@lbl.gov 510-486-6745 April 4, 2013 AZO: transparent and conducting 2 | Program Name or Ancillary Text eere.energy.gov BTO Program Peer Review Low-cost Solutions For Dynamic Window Materials André Anders Lawrence Berkeley National Laboratory aanders@lbl.gov 510-486-6745 April 4, 2013 Task 1: Reduce cost of transparent conducting oxide (TCO) for electrochromic windows, * started in FY11 * Applicable to existing technology of electrochromic window and other applications Task 2: Produce films of oxide nanocrystals relevant to dynamic windows by terminated cluster growth, * started in FY 13

96

Low-Cost Solar Water Heating Research and Development Roadmap  

NLE Websites -- All DOE Office Websites (Extended Search)

Low-Cost Solar Water Heating Low-Cost Solar Water Heating Research and Development Roadmap K. Hudon, T. Merrigan, J. Burch and J. Maguire National Renewable Energy Laboratory Technical Report NREL/TP-5500-54793 August 2012 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Low-Cost Solar Water Heating Research and Development Roadmap K. Hudon, T. Merrigan, J. Burch and J. Maguire National Renewable Energy Laboratory Prepared under Task No. SHX1.1001 Technical Report NREL/TP-5500-54793 August 2012

97

Low-Cost Solutions for Dynamic Window Material  

NLE Websites -- All DOE Office Websites (Extended Search)

Low-cost Solutions For Dynamic Low-cost Solutions For Dynamic Window Materials André Anders Lawrence Berkeley National Laboratory aanders@lbl.gov 510-486-6745 April 4, 2013 AZO: transparent and conducting 2 | Program Name or Ancillary Text eere.energy.gov BTO Program Peer Review Low-cost Solutions For Dynamic Window Materials André Anders Lawrence Berkeley National Laboratory aanders@lbl.gov 510-486-6745 April 4, 2013 Task 1: Reduce cost of transparent conducting oxide (TCO) for electrochromic windows, * started in FY11 * Applicable to existing technology of electrochromic window and other applications Task 2: Produce films of oxide nanocrystals relevant to dynamic windows by terminated cluster growth, * started in FY 13

98

Low cost performance evaluation of passive solar buildings  

DOE Green Energy (OSTI)

An approach to low-cost instrumentation and performance evaluation of passive solar heated buildings is presented. Beginning with a statement of the need for a low-cost approach, a minimum list of measured quantities necessary to compute a set of recommended performance factors is developed. Conflicts and confusion surrounding the definition of various performance factors are discussed and suggestions are made for dealing with this situation. Available instrumentation and data processing equipment is presented. The recommended system would monitor approximately ten variables and compute numerous performance factors on site at a projected system cost of less than $3,000 per installation.

Palmiter, L.S.; Hamilton, L.B.; Holtz, M.J.

1979-10-01T23:59:59.000Z

99

Low-cost motor drive embedded fault diagnosis systems  

E-Print Network (OSTI)

Electric motors are used widely in industrial manufacturing plants. Bearing faults, insulation faults, and rotor faults are the major causes of electric motor failures. Based on the line current analysis, this dissertation mainly deals with the low cost incipient fault detection of inverter-fed driven motors. Basically, low order inverter harmonics contributions to fault diagnosis, a motor drive embedded condition monitoring method, analysis of motor fault signatures in noisy line current, and a few specific applications of proposed methods are studied in detail. First, the effects of inverter harmonics on motor current fault signatures are analyzed in detail. The introduced fault signatures due to harmonics provide additional information about the motor faults and enhance the reliability of fault decisions. It is theoretically and experimentally shown that the extended fault signatures caused by the inverter harmonics are similar and comparable to those generated by the fundamental harmonic on the line current. In the next chapter, the reference frame theory is proposed as a powerful toolbox to find the exact magnitude and phase quantities of specific fault signatures in real time. The faulty motors are experimentally tested both offline, using data acquisition system, and online, employing the TMS320F2812 DSP to prove the effectiveness of the proposed tool. In addition to reference frame theory, another digital signal processor (DSP)-based phasesensitive motor fault signature detection is presented in the following chapter. This method has a powerful line current noise suppression capability while detecting the fault signatures. It is experimentally shown that the proposed method can determine the normalized magnitude and phase information of the fault signatures even in the presence of significant noise. Finally, a signal processing based fault diagnosis scheme for on-board diagnosis of rotor asymmetry at start-up and idle mode is presented. It is quite challenging to obtain these regular test conditions for long enough time during daily vehicle operations. In addition, automobile vibrations cause a non-uniform air-gap motor operation which directly affects the inductances of electric motor and results quite noisy current spectrum. The proposed method overcomes the challenges like aforementioned ones simply by testing the rotor asymmetry at zero speed.

Akin, Bilal

2007-08-01T23:59:59.000Z

100

Low Cost Carbon Fiber Production Carbon Fiber Manufacturing Cost Modeling  

E-Print Network (OSTI)

Low Cost Carbon Fiber Production Carbon Fiber Manufacturing Cost Modeling Oak Ridge National been identified by carbon fiber manufacturers as a market with substantial growth potential. When manufactured with carbon fiber as opposed to traditional materials such as steel, automotive parts are able

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Low-cost appliance state sensing for energy disaggregation  

Science Conference Proceedings (OSTI)

Reliable detection of appliance state change is a barrier to the scalability of Non Intrusive Load Monitoring (NILM) beyond a small number of sufficiently distinct and large loads. We advocate a hybrid approach where a NILM algorithm is assisted by ultra-low-cost ... Keywords: appliance state change, energy disaggregation, sensor

Tianji Wu; Mani Srivastava

2012-11-01T23:59:59.000Z

102

Development of a Low-Cost Tide Gauge  

Science Conference Proceedings (OSTI)

A low-cost tide gauge was developed and field tested to demonstrate a technology that would enable more cost-effective and greater sampling of spatially variable water levels and ocean surface waves. The gauge was designed to be adaptable to ...

Mark F. Giardina; Marshall D. Earle; John C. Cranford; Daniel A. Osiecki

2000-04-01T23:59:59.000Z

103

Low-Cost Precursors to Novel Hydrogen Storage Materials  

DOE Green Energy (OSTI)

From 2005 to 2010, The Dow Chemical Company (formerly Rohm and Haas Company) was a member of the Department of Energy Center of Excellence on Chemical Hydrogen Storage, which conducted research to identify and develop chemical hydrogen storage materials having the potential to achieve DOE performance targets established for on-board vehicular application. In collaboration with Center co-leads Los Alamos National Laboratory (LANL) and Pacific Northwest National Laboratory (PNNL), and other Center partners, Dow's efforts were directed towards defining and evaluating novel chemistries for producing chemical hydrides and processes for spent fuel regeneration. In Phase 1 of this project, emphasis was placed on sodium borohydride (NaBH{sub 4}), long considered a strong candidate for hydrogen storage because of its high hydrogen storage capacity, well characterized hydrogen release chemistry, safety, and functionality. Various chemical pathways for regenerating NaBH{sub 4} from spent sodium borate solution were investigated, with the objective of meeting the 2010/2015 DOE targets of $2-3/gal gasoline equivalent at the pump ($2-3/kg H{sub 2}) for on-board hydrogen storage systems and an overall 60% energy efficiency. With the September 2007 No-Go decision for NaBH{sub 4} as an on-board hydrogen storage medium, focus was shifted to ammonia borane (AB) for on-board hydrogen storage and delivery. However, NaBH{sub 4} is a key building block to most boron-based fuels, and the ability to produce NaBH{sub 4} in an energy-efficient, cost-effective, and environmentally sound manner is critical to the viability of AB, as well as many leading materials under consideration by the Metal Hydride Center of Excellence. Therefore, in Phase 2, research continued towards identifying and developing a single low-cost NaBH4 synthetic route for cost-efficient AB first fill, and conducting baseline cost estimates for first fill and regenerated AB using a variety of synthetic routes. This project utilized an engineering-guided R&D approach, which involved the rapid down-selection of a large number of options (chemical pathways to NaBH{sub 4}) to a smaller, more manageable number. The research began by conducting an extensive review of the technical and patent literature to identify all possible options. The down-selection was based on evaluation of the options against a set of metrics, and to a large extent occurred before experimentation was initiated. Given the vast amount of literature and patents that has evolved over the years, this approach helped to focus efforts and resources on the options with the highest technical and commercial probability of success. Additionally, a detailed engineering analysis methodology was developed for conducting the cost and energy-efficiency calculations. The methodology utilized a number of inputs and tools (Aspen PEA{trademark}, FCHTool, and H2A). The down-selection of chemical pathways to NaBH{sub 4} identified three options that were subsequently pursued experimentally. Metal reduction of borate was investigated in Dow's laboratories, research on electrochemical routes to NaBH{sub 4} was conducted at Pennsylvania State University, and Idaho National Laboratory researchers examined various carbothermal routes for producing NaBH{sub 4} from borate. The electrochemical and carbothermal studies did not yield sufficiently positive results. However, NaBH{sub 4} was produced in high yields and purities by an aluminum-based metal reduction pathway. Solid-solid reactive milling, slurry milling, and solution-phase approaches to metal reduction were investigated, and while both reactive milling and solution-phase routes point to fully recyclable processes, the scale-up of reactive milling processes to produce NaBH{sub 4} is expected to be difficult. Alternatively, a low-cost solution-phase approach to NaBH{sub 4} has been identified that is based on conventional process unit operations and should be amenable to scale-up. Numerous advances in AB synthesis have been made in recent years to improve AB yields and purities

Suzanne W. Linehan; Arthur A. Chin; Nathan T. Allen; Robert Butterick; Nathan T. Kendall; I. Leo Klawiter; Francis J. Lipiecki; Dean M. Millar; David C. Molzahn; Samuel J. November; Puja Jain; Sara Nadeau; Scott Mancroni

2010-12-31T23:59:59.000Z

104

Durable, Low-cost, Improved Fuel Cell Membranes  

Science Conference Proceedings (OSTI)

The development of low cost, durable membranes and membranes electrode assemblies (MEAs) that operate under reduced relative humidity (RH) conditions remain a critical challenge for the successful introduction of fuel cells into mass markets. It was the goal of the team lead by Arkema, Inc. to address these shortages. Thus, this project addresses the following technical barriers from the fuel cells section of the Hydrogen Fuel Cells and Infrastructure Technologies Program Multi-Year Research, Development and Demonstration Plan: (A) Durability (B) Cost Arkemas approach consisted of using blends of polyvinylidenefluoride (PVDF) and proprietary sulfonated polyelectrolytes. In the traditional approach to polyelectrolytes for proton exchange membranes (PEM), all the required properties are packaged in one macromolecule. The properties of interest include proton conductivity, mechanical properties, durability, and water/gas transport. This is the case, for example, for perfluorosulfonic acid-containing (PFSA) membranes. However, the cost of these materials is high, largely due to the complexity and the number of steps involved in their synthesis. In addition, they suffer other shortcomings such as mediocre mechanical properties and insufficient durability for some applications. The strength and originality of Arkemas approach lies in the decoupling of ion conductivity from the other requirements. Kynar PVDF provides an exceptional combination of properties that make it ideally suited for a membrane matrix (Kynar is a registered trademark of Arkema Inc.). It exhibits outstanding chemical resistance in highly oxidative and acidic environments. In work with a prior grant, a membrane known as M41 was developed by Arkema. M41 had many of the properties needed for a high performance PEM, but had a significant deficiency in conductivity at low RH. In the first phase of this work, the processing parameters of M41 were explored as a means to increase its proton conductivity. Optimizing the processing of M41 was found to increase its proton conductivity by almost an order of magnitude at 50% RH. Characterization of the membrane morphology with Karren More at Oak Ridge National Laboratory showed that the membrane morphology was complex. This technology platform was dubbed M43 and was used as a baseline in the majority of the work on the project. Although its performance was superior to M41, M43 still showed proton conductivity an order of magnitude lower than that of a PFSA membrane at 50% RH. The MEA performance of M43 could be increased by reducing the thickness from 1 to 0.6 mils. However, the performance of the thinner M43 still did not match that of a PFSA membrane.

Chris Roger; David Mountz; Wensheng He; Tao Zhang

2011-03-17T23:59:59.000Z

105

NETL: News Release - Ultra-low Cost Well Monitoring Could Save Thousands of  

NLE Websites -- All DOE Office Websites (Extended Search)

January 19, 2005 January 19, 2005 Ultra-low Cost Well Monitoring Could Save Thousands of Marginal Oil Wells DOE-funded Project in California Tested Successfully TULSA, OKLA. - A new, ultra-low cost method for monitoring marginal oil wells promises to help rescue thousands of U.S. wells from an early demise. Developed with funding from the Department of Energy (DOE) and project-managed by DOE's National Energy Technology Laboratory, this novel, inexpensive, monitoring-system prototype helps improve the efficiency of rod-pumped oil wells. The ultimate payoff for such an approach could be the recovery of millions of barrels of oil otherwise permanently lost while the United States watches its oil production continue to slide. MORE INFO Marginal Expense Oil Well Wireless Surveillance MEOWS -Phase II final technical report [PDF-294KB]

106

Low-cost flywheel demonstration program. Final report  

DOE Green Energy (OSTI)

The Applied Physics Laboratory/Department of Energy Low Cost Flywheel Demonstration Program was initiated on 1 October 1977 and was successfully concluded on 31 December 19'9. The total cost of this program was $355,190. All primary objectives were successfully achieved as follows: demonstration of a full-size, 1)kWh flywheel having an estimated cost in large-volume production of approximately $50/kWh; developmeNt of a ball-bearing system having losses comparable to the losses in a totally magnetic suspension system; successful and repeated demonstration of the low-cost flywheel in a complete flywheel energy-storage system based on the use of ordinary house voltage and frequency; and application of the experience gained in the hardware program to project the system design into a complete, full-scale, 30-kWh home-type flywheel energy-storage system.

None

1980-04-01T23:59:59.000Z

107

Handheld and low-cost digital holographic microscopy  

E-Print Network (OSTI)

This study developed handheld and low-cost digital holographic microscopy (DHM) by adopting an in-line type hologram, a webcam, a high power RGB light emitting diode (LED), and a pinhole. It cost less than 20,000 yen (approximately 250 US dollars at 80 yen/dollar), and was approximately 120 mm x 80 mm x 55 mm in size. In addition, by adjusting the recording-distance of a hologram, the lateral resolution power at the most suitable distance was 17.5 um. Furthermore, this DHM was developed for use in open source libraries, and is therefore low-cost and can be easily developed by anyone. In this research, it is the feature to cut down cost and size and to improve the lateral resolution power further rather than existing reports. This DHM will be a useful application in fieldwork, education, and so forth.

Shiraki, Atsushi; Shimobaba, Tomoyoshi; Masuda, Nobuyuki; Ito, Tomoyoshi

2012-01-01T23:59:59.000Z

108

Low-cost hydrogen sensors: Technology maturation progress  

SciTech Connect

The authors are developing a low-cost, solid-state hydrogen sensor to support the long-term goals of the Department of Energy (DOE) Hydrogen Program to encourage acceptance and commercialization of renewable energy-based technologies. Development of efficient production, storage, and utilization technologies brings with it the need to detect and pinpoint hydrogen leaks to protect people and equipment. The solid-state hydrogen sensor, developed at Oak Ridge National Laboratory (ORNL), is potentially well-suited to meet cost and performance objectives for many of these applications. Under a cooperative research and development Agreement and license agreement, they are teaming with a private company, DCH Technology, Inc., to develop the sensor for specific market applications related to the use of hydrogen as an energy vector. This report describes the current efforts to optimize materials and sensor performance to reach the goals of low-cost fabrication and suitability for relevant application areas.

Hoffheins, B.S.; Rogers, J.E.; Lauf, R.J.; Egert, C.M. [Oak Ridge National Lab., TN (United States); Haberman, D.P. [DCH Technology, Inc., Sherman Oaks, CA (United States)

1998-04-01T23:59:59.000Z

109

EPRI Family of Low-Cost Multifunction Switchgear Systems  

Science Conference Proceedings (OSTI)

This project is to develop a family of low-cost solid-state switchgear systems for a range of distribution applications. These devices will be designed for use in switchgear replacements and for new installations. Additional benefits will come from other functionality (besides interrupting current) to be built into the switchgear systems. The switchgear systems will be useful in current distribution system infrastructure and, as a part of ADA, in migration to the distribution system of the future. The re...

2006-12-11T23:59:59.000Z

110

Low Cost Solar Water Heating R&D  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Template Template Low Cost Solar Water Heating R&D Kate Hudon National Renewable Energy Laboratory Kate.hudon@nrel.gov 303-275-3190 April 3, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: The major market barrier for solar water heaters (SWHs) is installed cost. This project addresses this barrier by working with an industry research partner to evaluate innovative solutions that reduce the installed cost of a SWH by

111

Low cost high performance generator technology program. Addendum report  

DOE Green Energy (OSTI)

The results of a system weight, efficiency, and size analysis which was performed on the 500 W(e) low cost high performance generator (LCHPG) are presented. The analysis was performed in an attempt to improve system efficiency and specific power over those presented in June 1975, System Design Study Report TES-SNSO-3-25. Heat source volume, configuration, and safety as related to the 500 W(e) LCHPG are also discussed. (RCK)

Not Available

1975-09-01T23:59:59.000Z

112

An Automated Home Made Low Cost Vibrating Sample Magnetometer  

E-Print Network (OSTI)

The design and operation of a homemade low cost vibrating sample magnetometer is described here. The sensitivity of this instrument is better than 10-2 emu and found to be very efficient for the measurement of magnetization of most of the ferromagnetic and other magnetic materials as a function of temperature down to 77 K and magnetic field upto 800 Oe. Both M(H) and M(T) data acquisition are fully automated employing computer and Labview software

Kundu, S

2011-01-01T23:59:59.000Z

113

Research and Development of a Low Cost Solar Collector  

Science Conference Proceedings (OSTI)

This is a Final Technical Report on the Research and Development completed towards the development of a Low Cost Solar Collector conducted under the DOE cost-sharing award EE-0003591. The objective of this project was to develop a new class of solar concentrators with geometries and manufacturability that could significantly reduce the fully installed cost of the solar collector field for concentrated solar thermal power plants. The goal of the project was to achieve an aggressive cost target of $170/m2, a reduction of up to 50% in the total installed cost of a solar collector field as measured against the current industry benchmark of a conventional parabolic trough. The project plan, and the detailed activities conducted under the scope of the DOE Award project addressed all major drivers that affect solar collector costs. In addition to costs, the study also focused on evaluating technical performance of new collector architectures and compared them to the performance of the industry benchmark parabolic trough. The most notable accomplishment of this DOE award was the delivery of a full-scale integrated design, manufacturing and field installation solution for a new class of solar collector architecture which has been classified as the Bi-Planar Fresnel Collector (BPFC) and may be considered as a viable alternative to the conventional parabolic trough, as well as the conventional Fresnel collectors. This was in part accomplished through the design and development, all the way through fabrication and test validation of a new class of Linear Planar Fresnel Collector architecture. This architecture offers a number of key differentiating features which include a planar light-weight frame geometry with small mass-manufacturable elements utilizing flat mirror sections. The designs shows significant promise in reducing the material costs, fabrication costs, shipping costs, and on-site field installation costs compared to the benchmark parabolic trough, as well as the conventional Fresnel collector. The noteworthy design features of the BPFC architecture include the use of relatively cheaper flat mirrors and a design which allows the mirror support beam sections to act as load-bearing structural elements resulting in more than a 36% reduction in the overall structural weight compared to an optimized parabolic trough. Also, it was shown that the utilization of small mass-produced elements significantly lowers mass-production and logistics costs that can more quickly deliver economies of scale, even for smaller installations while also reducing shipping and installation costs. Moreover, unlike the traditional Fresnel trough the BPFC architecture does not require complex articulating drive mechanisms but instead utilizes a standard parabolic trough hydraulic drive mechanism. In addition to the development of the Bi-Planar Fresnel Collector, an optimized conventional space-frame type parabolic trough was also designed, built, analyzed and field-tested during the first phase of this award. The design of the conventional space-frame parabolic collector was refined with extensive FEA and CFD analysis to reduce material costs and re-designed for simpler fabrication and more accurate lower-cost field assembly. This optimized parabolic trough represented an improvement over the state-of-the art of the traditional parabolic trough architecture and also served as a more rigorous and less subjective benchmark that was used for comparison of new candidate design architectures. The results of the expanded 1st phase of the DOE award project showed that both the Optimized Parabolic Trough and the new Bi-Planar Fresnel Collector design concepts failed to meet the primary objectives for the project of achieving a 50% cost reduction from the industry reference total installed cost of $350/m2. Results showed that the BPFC came in at projected total installed cost of $237/m2 representing a 32% savings compared to the industry benchmark conventional parabolic trough. And the cost reduction obtained by the Optimized Parabolic Trough compared to the

Ansari, Asif; Philip, Lee; Thouppuarachchi, Chirath

2012-08-01T23:59:59.000Z

114

Research and Development of a Low Cost Solar Collector  

SciTech Connect

This is a Final Technical Report on the Research and Development completed towards the development of a Low Cost Solar Collector conducted under the DOE cost-sharing award EE-0003591. The objective of this project was to develop a new class of solar concentrators with geometries and manufacturability that could significantly reduce the fully installed cost of the solar collector field for concentrated solar thermal power plants. The goal of the project was to achieve an aggressive cost target of $170/m2, a reduction of up to 50% in the total installed cost of a solar collector field as measured against the current industry benchmark of a conventional parabolic trough. The project plan, and the detailed activities conducted under the scope of the DOE Award project addressed all major drivers that affect solar collector costs. In addition to costs, the study also focused on evaluating technical performance of new collector architectures and compared them to the performance of the industry benchmark parabolic trough. The most notable accomplishment of this DOE award was the delivery of a full-scale integrated design, manufacturing and field installation solution for a new class of solar collector architecture which has been classified as the Bi-Planar Fresnel Collector (BPFC) and may be considered as a viable alternative to the conventional parabolic trough, as well as the conventional Fresnel collectors. This was in part accomplished through the design and development, all the way through fabrication and test validation of a new class of Linear Planar Fresnel Collector architecture. This architecture offers a number of key differentiating features which include a planar light-weight frame geometry with small mass-manufacturable elements utilizing flat mirror sections. The designs shows significant promise in reducing the material costs, fabrication costs, shipping costs, and on-site field installation costs compared to the benchmark parabolic trough, as well as the conventional Fresnel collector. The noteworthy design features of the BPFC architecture include the use of relatively cheaper flat mirrors and a design which allows the mirror support beam sections to act as load-bearing structural elements resulting in more than a 36% reduction in the overall structural weight compared to an optimized parabolic trough. Also, it was shown that the utilization of small mass-produced elements significantly lowers mass-production and logistics costs that can more quickly deliver economies of scale, even for smaller installations while also reducing shipping and installation costs. Moreover, unlike the traditional Fresnel trough the BPFC architecture does not require complex articulating drive mechanisms but instead utilizes a standard parabolic trough hydraulic drive mechanism. In addition to the development of the Bi-Planar Fresnel Collector, an optimized conventional space-frame type parabolic trough was also designed, built, analyzed and field-tested during the first phase of this award. The design of the conventional space-frame parabolic collector was refined with extensive FEA and CFD analysis to reduce material costs and re-designed for simpler fabrication and more accurate lower-cost field assembly. This optimized parabolic trough represented an improvement over the state-of-the art of the traditional parabolic trough architecture and also served as a more rigorous and less subjective benchmark that was used for comparison of new candidate design architectures. The results of the expanded 1st phase of the DOE award project showed that both the Optimized Parabolic Trough and the new Bi-Planar Fresnel Collector design concepts failed to meet the primary objectives for the project of achieving a 50% cost reduction from the industry reference total installed cost of $350/m2. Results showed that the BPFC came in at projected total installed cost of $237/m2 representing a 32% savings compared to the industry benchmark conventional parabolic trough. And the cost reduction obtained by the Optimized Parabolic Trough compared to the

Ansari, Asif; Philip, Lee; Thouppuarachchi, Chirath

2012-08-01T23:59:59.000Z

115

Sneak peek at electrofuels: Geobacter team aims for bio-based solution to solar energy storage  

E-Print Network (OSTI)

Sneak peek at electrofuels: Geobacter team aims for bio-based solution to solar energy storage a hybrid of solar and bio-power and also solve the most perplexing problem facing solar energy: energy compounds, and oxygen is released as a byproduct," Lovley explains. Solar energy powers the microbes

Lovley, Derek

116

Novel Low Cost, High Reliability Wind Turbine Drivetrain  

SciTech Connect

Clipper Windpower, in collaboration with United Technologies Research Center, the National Renewable Energy Laboratory, and Hamilton Sundstrand Corporation, developed a low-cost, deflection-compliant, reliable, and serviceable chain drive speed increaser. This chain and sprocket drivetrain design offers significant breakthroughs in the areas of cost and serviceability and addresses the key challenges of current geared and direct-drive systems. The use of gearboxes has proven to be challenging; the large torques and bending loads associated with use in large multi-MW wind applications have generally limited demonstrated lifetime to 8-10 years [1]. The large cost of gearbox replacement and the required use of large, expensive cranes can result in gearbox replacement costs on the order of $1M, representing a significant impact to overall cost of energy (COE). Direct-drive machines eliminate the gearbox, thereby targeting increased reliability and reduced life-cycle cost. However, the slow rotational speeds require very large and costly generators, which also typically have an undesirable dependence on expensive rare-earth magnet materials and large structural penalties for precise air gap control. The cost of rare-earth materials has increased 20X in the last 8 years representing a key risk to ever realizing the promised cost of energy reductions from direct-drive generators. A common challenge to both geared and direct drive architectures is a limited ability to manage input shaft deflections. The proposed Clipper drivetrain is deflection-compliant, insulating later drivetrain stages and generators from off-axis loads. The system is modular, allowing for all key parts to be removed and replaced without the use of a high capacity crane. Finally, the technology modularity allows for scalability and many possible drivetrain topologies. These benefits enable reductions in drivetrain capital cost by 10.0%, levelized replacement and O&M costs by 26.7%, and overall cost of energy by 10.2%. This design was achieved by: (1) performing an extensive optimization study that deter-mined the preliminary cost for all practical chain drive topologies to ensure the most competitive configuration; (2) conducting detailed analysis of chain dynamics, contact stresses, and wear and efficiency characteristics over the chain???????¢????????????????s life to ensure accurate physics-based predictions of chain performance; and (3) developing a final product design, including reliability analysis, chain replacement procedures, and bearing and sprocket analysis. Definition of this final product configuration was used to develop refined cost of energy estimates. Finally, key system risks for the chain drive were defined and a comprehensive risk reduction plan was created for execution in Phase 2.

Anthony Chobot; Debarshi Das; Tyler Mayer; Zach Markey; Tim Martinson; Hayden Reeve; Paul Attridge; Tahany El-Wardany

2012-09-13T23:59:59.000Z

117

Development of Low Cost Sensors for Hydrogen Safety Applications  

SciTech Connect

We are developing rugged and reliable hydrogen safety sensors that can be easily manufactured. Potential applications also require an inexpensive sensor that can be easily deployed. Automotive applications demand low cost, while personnel safety applications emphasize light-weight, battery-operated, and wearable sensors. Our current efforts involve developing and optimizing sensor materials for stability and compatibility with typical thick-film manufacturing processes. We are also tailoring the sensor design and size along with various packaging and communication schemes for optimal acceptance by end users.

Hoffheins, B.S.; Holmes, W., Jr.; Lauf, R.J.; Maxey, L.C.; Salter, C.; Walker, D.

1999-04-07T23:59:59.000Z

118

Low-cost solar collector test and evaluation. Final report  

DOE Green Energy (OSTI)

Project was to test and evaluate a highly efficient low cost solar collector and to make this technology available to the average homeowner. The basic collector design was for use in mass production, so approximately forty collector panels were made for testing and to make it simple to be hand built. The collectors performed better than expected and written and visual material was prepared to make construction easier for a first time builder. Publicity was generated to make public aware of benefits with stories by Associated Press and in publications like Popular Science.

Benjamin, C.M.

119

Life and stability testing of packaged low-cost energy storage materials  

DOE Green Energy (OSTI)

A low-cost laminated plastic film which is used to contain a Glauber's salt-based phase change thermal energy storage material in sausage-like containers called Chubs is discussed. The results of tests performed on the Chub packages themselves and on the thermal energy storage capacity of the packaged phase change material are described. From the test results, a set of specifications have been drawn up for a film material which will satisfactorily contain the phase change material under anticipated operating conditions. Calorimetric testing of the phase change material with thermal cycling indicates that a design capacity of 45 to 50 Btu/lb for a ..delta..T of 30/sup 0/F can be used for the packaged material.

Frysinger, G.R.

1980-07-01T23:59:59.000Z

120

NETL: Mercury Emissions Control Technologies - Assessment Of Low Cost Novel  

NLE Websites -- All DOE Office Websites (Extended Search)

Assessment Of Low Cost Novel Mercury Sorbents Assessment Of Low Cost Novel Mercury Sorbents Project Summary: Apogee Scientific Inc. will assess up to a dozen carbon-based and other sorbents that are expected to remove more than 90 percent of mercury and cost 40 to 75 percent less than commercial sorbents because they feature inexpensive precursors and simple activation steps. Six to 12 sorbents will undergo fixed-bed adsorption tests with the most promising three to six being further evaluated by injecting them into a pilot-scale electrostatic precipitator and baghouse. Commercial flue gas desulfurization activated carbon will provide the baseline for comparisons. A portable pilot system will be constructed and would accommodate a slipstream ESP or baghouse at minimal cost. Tests will be conducted at Wisconsin Electric's Valley power plant in Milwaukee, WI, and Midwest Generation's Powerton Station in Pekin, IL. The project team consists of URS Radian, Austin, TX; the Electric Power Research Institute, Palo Alto, CA; the Illinois State Geological Survey, Champaign, IL; ADA Environmental Solutions, Littleton, CO; and Physical Sciences Inc., Andover, MA.

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Glass for low-cost photovoltaic solar arrays  

DOE Green Energy (OSTI)

In photovoltaic systems, the encapsulant material that protects the solar cells should be highly transparent and very durable. Glass satisfies these two criteria and is considered a primary candidate for low-cost, photovoltaic encapsulation systems. In this report, various aspects of glass encapsulation are treated that are important for the designer of photovoltaic systems. Candidate glasses and available information defining the state of the art of glass encapsulation materials and processes for automated, high volume production of terrestrial photovoltaic devices and related applications are presented. The criteria for consideration of the glass encapsulation systems were based on the LSA (Low-cost Solar Array) Project goals for arrays: (a) a low degradation rate, (b) high reliability, (c) an efficiency greater than 10 percent, (d) a total array price less than $500/kW, and (e) a production capacity of 5 x 10/sup 5/ kW/yr. The glass design areas treated herein include the types of glass, sources and costs, physical properties and glass modifications, such as antireflection coatings. 78 references.

Bouquet, F.L.

1980-02-01T23:59:59.000Z

122

NETL: Bench-Scale Process for Low-Cost Carbon Dioxide (CO2) Capture Using a  

NLE Websites -- All DOE Office Websites (Extended Search)

Bench-Scale Process for Low-Cost Carbon Dioxide (CO2) Capture Using a Phase-Changing Absorbent Bench-Scale Process for Low-Cost Carbon Dioxide (CO2) Capture Using a Phase-Changing Absorbent Project No.: DE-FE0013687 GE global is constructing and operating a continuous, bench-scale CO2 capture system that employs a phase-changing silicone solvent . Experimental data obtained at the laboratory scale in a previous ARPA-E funded project, including mass transfer and kinetic information, is being used to determine process scalability and perform a techno-economic assessment of the commercial scale process. The manufacturability of the solvent is being examined to obtain the material needed for bench-scale testing. Data obtained from the bench-scale system will include mass transfer parameters, kinetic parameters, heat transfer parameters, solvent stability, effects of flue gas contaminants, and recommended operating conditions. Other data such as absorption/desorption isotherms and solvent regeneration energy will be determined in laboratory testing. The solvent manufacturing cost, the bench-scale engineering data, and the laboratory property data will be used to complete the techno-economic assessment and to develop a scale-up strategy for commercialization.

123

Small Scale SOFC Demonstration Using Bio-Based and Fossil Fuels - Technology Management, Inc.  

NLE Websites -- All DOE Office Websites (Extended Search)

Small Scale SOFC Demonstration Using Small Scale SOFC Demonstration Using Bio-based and Fossil Fuels-Technology Management, Inc. Background In this congressionally directed project, Technology Management, Inc. (TMI) will develop and demonstrate a residential scale prototype solid oxide fuel cell (SOFC) system at end-user sites. These small-scale systems would operate continuously on either conventional or renewable biofuels, producing cost effective, uninterruptible

124

Low-Cost Miniature Multifunctional Solid-State Gas Sensors  

NLE Websites -- All DOE Office Websites (Extended Search)

Richard J. Dunst Richard J. Dunst Project Manager National Energy Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236-0940 412-386-6694 richard.dunst@netl.doe.gov Eric D. Wachsman Principal Investigator University of Florida 339 Weil Hall Gainesville, FL 32611-4025 352-846-2991 ewach@mse.ufl.edu Low-Cost Miniature MuLtifunCtionaL soLid-state Gas sensors Description Research sponsored by the U.S. Department of Energy (DOE) Office of Fossil Energy (FE) through the National Energy Technology Laboratory (NETL), and performed by the University of Florida, has resulted in successful development of solid-state sensor technology that can provide an inexpensive, rugged device that is capable of measuring the concentration of multiple pollutants in lean-burn coal

125

Low-Cost Methane Liquefaction Plant and Vehicle Refueling Station  

SciTech Connect

The Idaho National Engineering and Environmental Laboratory (INEEL) is currently negotiating a collaborative effort with Pacific Gas and Electric (PG&E) that will advance the use of liquefied natural gas (LNG) as a vehicle fuel. We plan to develop and demonstrate a small-scale methane liquefaction plant (production of 5,000 to 10,000 gallons per day) and a low-cost ($150,000) LNG refueling station to supply fuel to LNG-powered transit buses and other heavy-duty vehicles. INEEL will perform the research and development work. PG&E will deploy the new facilities commercially in two demonstration projects, one in northern California, and one in southern California.

B. Wilding; D. Bramwell

1999-01-01T23:59:59.000Z

126

Development of low cost concentrating solar collectors. Final report  

DOE Green Energy (OSTI)

A low cost concentrating collector has been developed that has the following features: (1) Material cost per 4 foot by 8 foot panel of $175 or $225 at retail prices depending on which of the two versions are used. (2) Low weight of 159 pounds per panel when liquid-filled or approximately 5 pounds per square foot to result in minor additional roof stress. (3) A concentration factor of 1.72 to reduce the necessary storage volume for winter heating and obtain adequate temperature for future air conditioning.(4) High efficiency when mounted parallel to the roof to reduce wind damage, roof stresses, and blend better with architectural features of a house.

Batzer, D.

1982-01-31T23:59:59.000Z

127

Low Cost Exploration, Testing, And Development Of The Chena Geothermal  

Open Energy Info (EERE)

Cost Exploration, Testing, And Development Of The Chena Geothermal Cost Exploration, Testing, And Development Of The Chena Geothermal Resource Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Low Cost Exploration, Testing, And Development Of The Chena Geothermal Resource Details Activities (2) Areas (1) Regions (0) Abstract: The Chena Hot Springs geothermal field was intensively explored, tested, and developed without a wireline unit between October 2005 and August 2006. Due to the remote location of the project and its small size of 0.4 MW, it was necessary to perform the work without the geothermal industry infrastructure typically utilized in the 48 contiguous states. This could largely be done because some of the wells were capable of artesian flow at below boiling temperatures. The geology, consisting of

128

SunShot Initiative: Low-Cost Heliostat Development  

NLE Websites -- All DOE Office Websites (Extended Search)

Cost Heliostat Development Cost Heliostat Development HiTek logo Photo of a machine with two round discs connected by intertwined chains. A staged-chain drive unit eliminates destructive coupling loads from severe wind conditions and greatly reduces cumulative fatigue damage. HiTek Services, under the Baseload CSP FOA, is conducting fundamental parametric analyses of the optimum heliostat size and developing a novel low-cost heliostat design. Approach There are four tasks under this award: Develop a means to determine the optimum size range of the heliostat, in terms of the applied forces and moments, manufacturing learning curve effects, O&M, and optical efficiency. The outcome of this task will be a spreadsheet analysis tool for parametrically determining heliostat costs that are appropriately allocated into categories with inputs for a specific design.

129

Low cost bare-plate solar air collector  

DOE Green Energy (OSTI)

The purpose of this project was to develop a low cost, bare-plate collector, determine its performance for a variety of climatic conditions, analyze the economics of this type of solar collector and evaluate specific applications. Two prototype collectors were designed, fabricated and installed into an instrumented test system. Tests were conducted for a period of five months. Results of the tests showed consistent operating efficiencies of 60% or greater with air preheat temperature uses up to 20/sup 0/F for one of the prototypes. The economic analyses indicated that an installed cost of between $5 and $10 per square foot would make this type of solar system economically viable. For the materials of construction and the type of fabrication and installation perceived, these costs for the bare-plate solar collector are believed to be attainable. Specific applications for preheating ventilation air for schools were evaluated and judged to be economically viable.

Maag, W.L.; Wenzler, C.J.; Rom, F.E.; VanArsdale, D.R.

1980-09-01T23:59:59.000Z

130

Adapting fair information practices to low cost RFID systems  

E-Print Network (OSTI)

Abstract. Within the coming years, low cost radio frequency identification (RFID) systems are expected to become commonplace throughout the business-to-business and business-to-consumer marketplace. Much of the work to date on these systems pertains to systems engineering and electronic product code issues. This paper discusses ways to ensure personal privacy, and presents policies and technologies that could limit abuse. Introduction to RFID Automatic Identification (Auto-ID) describes a wide class of technologies used for automatically identifying objects, individuals, and locations. Typical Auto-ID systems assign a code to a product model or type. This code can then be automatically read and manipulated by an information processing system. The Universal Product Code (UPC) / European Article Number (EAN) bar code present on most consumer

Simson L. Garfinkel

2002-01-01T23:59:59.000Z

131

Low-Cost Solar Water Heating Research and Development Roadmap  

DOE Green Energy (OSTI)

The market environment for solar water heating technology has changed substantially with the successful introduction of heat pump water heaters (HPWHs). The addition of this energy-efficient technology to the market increases direct competition with solar water heaters (SWHs) for available energy savings. It is therefore essential to understand which segment of the market is best suited for HPWHs and focus the development of innovative, low-cost SWHs in the market segment where the largest opportunities exist. To evaluate cost and performance tradeoffs between high performance hot water heating systems, annual energy simulations were run using the program, TRNSYS, and analysis was performed to compare the energy savings associated with HPWH and SWH technologies to conventional methods of water heating.

Hudon, K.; Merrigan, T.; Burch, J.; Maguire, J.

2012-08-01T23:59:59.000Z

132

Low Cost Thin Film Building-Integrated Photovoltaic Systems  

DOE Green Energy (OSTI)

The goal of the program is to develop 'LOW COST THIN FILM BUILDING-INTEGRATED PV SYSTEMS'. Major focus was on developing low cost solution for the commercial BIPV and rooftop PV market and meet DOE LCOE goal for the commercial market segment of 9-12 cents/kWh for 2010 and 6-8 cents/kWh for 2015. We achieved the 2010 goal and were on track to achieve the 2015 goal. The program consists of five major tasks: (1) modules; (2) inverters and BOS; (3) systems engineering and integration; (4) deployment; and (5) project management and TPP collaborative activities. We successfully crossed all stage gates and surpassed all milestones. We proudly achieved world record stable efficiencies in small area cells (12.56% for 1cm2) and large area encapsulated modules (11.3% for 800 cm2) using a triple-junction amorphous silicon/nanocrystalline silicon/nanocrystalline silicon structure, confirmed by the National Renewable Energy Laboratory. We collaborated with two inverter companies, Solectria and PV Powered, and significantly reduced inverter cost. We collaborated with three universities (Syracuse University, University of Oregon, and Colorado School of Mines) and National Renewable Energy Laboratory, and improved understanding on nanocrystalline material properties and light trapping techniques. We jointly published 50 technical papers in peer-reviewed journals and International Conference Proceedings. We installed two 75kW roof-top systems, one in Florida and another in New Jersey demonstrating innovative designs. The systems performed satisfactorily meeting/exceeding estimated kWh/kW performance. The 50/50 cost shared program was a great success and received excellent comments from DOE Manager and Technical Monitor in the Final Review.

Dr. Subhendu Guha; Dr. Jeff Yang

2012-05-25T23:59:59.000Z

133

SunShot Initiative: Next-Generation Low-Cost Reflector  

NLE Websites -- All DOE Office Websites (Extended Search)

Next-Generation Low-Cost Next-Generation Low-Cost Reflector to someone by E-mail Share SunShot Initiative: Next-Generation Low-Cost Reflector on Facebook Tweet about SunShot Initiative: Next-Generation Low-Cost Reflector on Twitter Bookmark SunShot Initiative: Next-Generation Low-Cost Reflector on Google Bookmark SunShot Initiative: Next-Generation Low-Cost Reflector on Delicious Rank SunShot Initiative: Next-Generation Low-Cost Reflector on Digg Find More places to share SunShot Initiative: Next-Generation Low-Cost Reflector on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage CSP Recovery Act Baseload CSP SunShot Multidisciplinary University Research Initiative CSP Heat Integration for Baseload Renewable Energy Deployment

134

SunShot Initiative: High-Concentration, Low-Cost Parabolic Trough...  

NLE Websites -- All DOE Office Websites (Extended Search)

High-Concentration, Low-Cost Parabolic Trough System for Baseload CSP to someone by E-mail Share SunShot Initiative: High-Concentration, Low-Cost Parabolic Trough System for...

135

The Development of low cost LiFePO4-based high power lithium...  

NLE Websites -- All DOE Office Websites (Extended Search)

Development of low cost LiFePO4-based high power lithium-ion batteries Title The Development of low cost LiFePO4-based high power lithium-ion batteries Publication Type Journal...

136

Measuring cycling kinematics using a low-cost, flashing LED, multi-camera approach  

E-Print Network (OSTI)

In this thesis a low cost motion capture approach is presented and applied to measure cyclists' kinematics. The motion capture system consists of low cost hardware and custom developed software. Based on still-frame, ...

Gilbertson, Matthew (Matthew W.)

2008-01-01T23:59:59.000Z

137

SunShot Initiative: Advanced Low-Cost Receivers for Parabolic...  

NLE Websites -- All DOE Office Websites (Extended Search)

Advanced Low-Cost Receivers for Parabolic Troughs to someone by E-mail Share SunShot Initiative: Advanced Low-Cost Receivers for Parabolic Troughs on Facebook Tweet about SunShot...

138

Radiometric compensation for a low-cost immersive projection system Julien DEHOS  

E-Print Network (OSTI)

Radiometric compensation for a low-cost immersive projection system Julien DEHOS Eric ZEGHERS Catopsys is a low-cost projection system aiming at making mixed reality (virtual, augmented or diminished the optical axis of P. the home by developing a low-cost immersive projection system. This system is composed

Paris-Sud XI, Université de

139

Recovery Act: Low Cost Integrated Substrate for OLED Lighting Development  

Science Conference Proceedings (OSTI)

PPG pursued the development of an integrated substrate, including the anode, external, and internal extraction layers. The objective of PPG??s program was to achieve cost reductions by displacing the existing expensive borosilicate or double-side polished float glass substrates and developing alternative electrodes and scalable light extraction layer technologies through focused and short-term applied research. One of the key highlights of the project was proving the feasibility of using PPG??s high transmission Solarphire® float glass as a substrate to consistently achieve organic lightemitting diode (OLED) devices with good performance and high yields. Under this program, four low-cost alternatives to the Indium Tin Oxide (ITO) anode were investigated using pilot-scale magnetron sputtered vacuum deposition (MSVD) and chemical vapor deposition (CVD) technologies. The anodes were evaluated by fabricating small and large phosphorescent organic lightemitting diode (PHOLED) devices at Universal Display Corporation (UDC). The device performance and life-times comparable to commercially available ITO anodes were demonstrated. A cost-benefit analysis was performed to down-select two anodes for further low-cost process development. Additionally, PPG developed and evaluated a number of scalable and compatible internal and external extraction layer concepts such as scattering layers on the outside of the glass substrate or between the transparent anode and the glass interface. In one external extraction layer (EEL) approach, sol-gel sprayed pyrolytic coatings were deposited using lab scale equipment by hand or automated spraying of sol-gel solutions on hot glass, followed by optimizing of scattering with minimal absorption. In another EEL approach, PPG tested large-area glass texturing by scratching a glass surface with an abrasive roller and acid etching. Efficacy enhancements of 1.27x were demonstrated using white PHOLED devices for 2.0mm substrates which are at par with the standard diffuser sheets used by OLED manufacturers. For an internal extraction layer (IEL), PPG tested two concepts combining nanoparticles either in a solgel coating inserted between the anode and OLED or anode and glass interface, or incorporated into the internal surface of the glass. Efficacy enhancements of 1.31x were demonstrated using white PHOLED devices for the IEL by itself and factors of 1.73x were attained for an IEL in combination of thick acrylic block as an EEL. Recent offline measurements indicate that, with further optimization, factors over 2.0x could be achieved through an IEL alone.

Scott Benton; Abhinav Bhandari

2012-09-30T23:59:59.000Z

140

Low-Cost High-Pressure Hydrogen Generator  

DOE Green Energy (OSTI)

Electrolysis of water, particularly in conjunction with renewable energy sources, is potentially a cost-effective and environmentally friendly method of producing hydrogen at dispersed forecourt sites, such as automotive fueling stations. The primary feedstock for an electrolyzer is electricity, which could be produced by renewable sources such as wind or solar that do not produce carbon dioxide or other greenhouse gas emissions. However, state-of-the-art electrolyzer systems are not economically competitive for forecourt hydrogen production due to their high capital and operating costs, particularly the cost of the electricity used by the electrolyzer stack. In this project, Giner Electrochemical Systems, LLC (GES) developed a low cost, high efficiency proton-exchange membrane (PEM) electrolysis system for hydrogen production at moderate pressure (300 to 400 psig). The electrolyzer stack operates at differential pressure, with hydrogen produced at moderate pressure while oxygen is evolved at near-atmospheric pressure, reducing the cost of the water feed and oxygen handling subsystems. The project included basic research on catalysts and membranes to improve the efficiency of the electrolysis reaction as well as development of advanced materials and component fabrication methods to reduce the capital cost of the electrolyzer stack and system. The project culminated in delivery of a prototype electrolyzer module to the National Renewable Energy Laboratory for testing at the National Wind Technology Center. Electrolysis cell efficiency of 72% (based on the lower heating value of hydrogen) was demonstrated using an advanced high-strength membrane developed in this project. This membrane would enable the electrolyzer system to exceed the DOE 2012 efficiency target of 69%. GES significantly reduced the capital cost of a PEM electrolyzer stack through development of low cost components and fabrication methods, including a 60% reduction in stack parts count. Economic analysis indicates that hydrogen could be produced for $3.79 per gge at an electricity cost of $0.05/kWh by the lower-cost PEM electrolyzer developed in this project, assuming high-volume production of large-scale electrolyzer systems.

Cropley, Cecelia C.; Norman, Timothy J.

2008-04-02T23:59:59.000Z

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Low Cost Geothermal Separators BLISS Boundary Layer Inline Separator Scrubber  

DOE Green Energy (OSTI)

A new compact, low cost, and high performance separator is being developed to help reduce the installed and O and M cost of geothermal power generation. This device has been given the acronym ''BLISS'' that stands for ''Boundary Layer Inline Separator Scrubber''. The device is the first of a series of separators, and in the case of injectates, scrubbers to address the cost-reduction needs of the industry. The BLISS is a multi-positional centrifugal separator primarily designed to be simply installed between pipe supports, in a horizontal position. This lower profile reduces the height safety concern for workers, and significantly reduces the total installation cost. The vessel can demand as little as one-quarter (25%) the amount of steel traditionally required to fabricate many large vertical separators. The compact nature and high separating efficiency of this device are directly attributable to a high centrifugal force coupled with boundary layer control. The pseudo isokinetic flow design imparts a self-cleaning and scale resistant feature. This polishing separator is designed to remove moderate amounts of liquid and entrained solids.

Jung, Douglas; Wai, King

2000-05-26T23:59:59.000Z

142

A Low-Cost Natural Gas/Freshwater Aerial Pipeline  

E-Print Network (OSTI)

Offered is a new type of low-cost aerial pipeline for delivery of natural gas, an important industrial and residential fuel, and freshwater as well as other payloads over long distances. The offered pipeline dramatically decreases the construction and operation costs and the time necessary for pipeline construction. A dual-use type of freight pipeline can improve an arid rural environment landscape and provide a reliable energy supply for cities. Our aerial pipeline is a large, self-lofting flexible tube disposed at high altitude. Presently, the term "natural gas" lacks a precise technical definition, but the main components of natural gas are methane, which has a specific weight less than air. A lift force of one cubic meter of methane equals approximately 0.5 kg. The lightweight film flexible pipeline can be located in the Earth-atmosphere at high altitude and poses no threat to airplanes or the local environment. The authors also suggest using lift force of this pipeline in tandem with wing devices for che...

Bolonkin, A; Bolonkin, Alexander; Cathcart, Richard

2007-01-01T23:59:59.000Z

143

Process for Low Cost Domestic Production of LIB Cathode Materials  

DOE Green Energy (OSTI)

The objective of the research was to determine the best low cost method for the large scale production of the Nickel-Cobalt-Manganese (NCM) layered cathode materials. The research and development focused on scaling up the licensed technology from Argonne National Laboratory in BASFs battery material pilot plant in Beachwood Ohio. Since BASF did not have experience with the large scale production of the NCM cathode materials there was a significant amount of development that was needed to support BASFs already existing research program. During the three year period BASF was able to develop and validate production processes for the NCM 111, 523 and 424 materials as well as begin development of the High Energy NCM. BASF also used this time period to provide free cathode material samples to numerous manufactures, OEMs and research companies in order to validate the ma-terials. The success of the project can be demonstrated by the construction of the production plant in Elyria Ohio and the successful operation of that facility. The benefit of the project to the public will begin to be apparent as soon as material from the production plant is being used in electric vehicles.

Thurston, Anthony

2012-10-31T23:59:59.000Z

144

A Low-Cost Natural Gas/Freshwater Aerial Pipeline  

E-Print Network (OSTI)

Offered is a new type of low-cost aerial pipeline for delivery of natural gas, an important industrial and residential fuel, and freshwater as well as other payloads over long distances. The offered pipeline dramatically decreases the construction and operation costs and the time necessary for pipeline construction. A dual-use type of freight pipeline can improve an arid rural environment landscape and provide a reliable energy supply for cities. Our aerial pipeline is a large, self-lofting flexible tube disposed at high altitude. Presently, the term "natural gas" lacks a precise technical definition, but the main components of natural gas are methane, which has a specific weight less than air. A lift force of one cubic meter of methane equals approximately 0.5 kg. The lightweight film flexible pipeline can be located in the Earth-atmosphere at high altitude and poses no threat to airplanes or the local environment. The authors also suggest using lift force of this pipeline in tandem with wing devices for cheap shipment of a various payloads (oil, coal and water) over long distances. The article contains a computed macroproject in northwest China for delivery of 24 billion cubic meter of gas and 23 millions tonnes of water annually.

Alexander Bolonkin; Richard Cathcart

2007-01-05T23:59:59.000Z

145

Low cost fault detection system for railcars and tracks  

E-Print Network (OSTI)

A "low cost fault detection system" that identifies wheel flats and defective tracks is explored here. This is achieved with the conjunction of sensors, microcontrollers and Radio Frequency (RF) transceivers. The objective of the proposed research is to identify faults plaguing railcars and to be able to clearly distinguish the faults of a railcar from the inherent faults in the track. The focus of the research though, is mainly to identify wheel flats and defective tracks. The thesis has been written with the premise that the results from the simulation software GENSYS are close to the real time data that would have been obtained from an actual railcar. Based on the results of GENSYS, a suitable algorithm is written that helps segregate a fault in a railcar from a defect in a track. The above code is implemented using hardware including microcontrollers, accelerometers, RF transceivers and a real time monitor. An enclosure houses the system completely, so that it is ready for application in a real environment. This also involves selection of suitable hardware so that there is a uniform source of power supply that reduces the cost and assists in building a robust system.

Vengalathur, Sriram T.

2003-08-01T23:59:59.000Z

146

Low-cost exterior insulation process and structure  

DOE Patents (OSTI)

The invention relates to a low-cost process for insulating walls comprising: (a) stacking bags filled with insulating material next to the exterior surface of a wall until the wall is covered, the stack of bags thus formed having fasteners to attach to a wire mesh (e.g., straps looped between the bags and fastened to the wall); (b) stretching a wire mesh (e.g., chicken wire or stucco netting) over the stack of bags, covering the side of the bags which is not adjacent to the wall; (c) fastening the wire mesh to stationary objects; (d) attaching the wire mesh to said fasteners on said stack of bags; and (e) applying a cemetitious material (e.g., stucco) to the wire mesh and allowing it to harden. Stacking the bags against the wall is preferably preceded by laying a base on the ground at the foot of the wall using a material such as cement or crushed stone wrapped in a non-woven fabric (e.g., geosynthetic felt). It is also preferred to erect stationary corner posts at the ends of the wall to be insulated, the top ends of the posts being tied to each other and/or tied or otherwise anchored to the wall. The invention also includes the structure made by this process. The structure comprises a stack of bags of insulating material next to the exterior wall of a building, said stack of bags of insulating material being attached to said wall and having a covering of cementitious material on the side not adjacent to said wall.

Vohra, Arun

1997-12-01T23:59:59.000Z

147

ESS 2012 Peer Review - Low Cost, Manufacturable High Voltage Power Module for ESS - Brandon Passmore, APEI  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

W. Research Center Blvd. * Fayetteville, AR 72701 * (479) 443-5759 W. Research Center Blvd. * Fayetteville, AR 72701 * (479) 443-5759 Design and Development of a Low Cost, Manufacturable High Voltage Power Module for Energy Storage Systems Phase I SBIR September 27, 2012 Brandon Passmore, PhD Sr. Electronics Packaging Research Engineer Email: bpassmo@apei.net Acknowledgements * I would like to thank Dr. Imre Gyuk of the DOE Energy Storage Systems Program and Dr. Stan Atcitty for technical support * I would also like to thank 2 Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000.

148

Silicon materials task of the low cost solar array project (Phase III). Effect of impurities and processing on silicon solar cells. Phase III summary and seventeenth quarterly report, Volume 1: characterization methods for impurities in silicon and impurity effects data base  

DOE Green Energy (OSTI)

The object of Phase III of the program has been to investigate the effects of various processes, metal contaminants and contaminant-process interactions on the performance of terrestrial silicon solar cells. The study encompassed a variety of tasks including: (1) a detailed examination of thermal processing effects, such as HCl and POCl/sub 3/ gettering on impurity behavior, (2) completion of the data base and modeling for impurities in n-base silicon, (3) extension of the data base on p-type material to include elements likely to be introduced during the production, refining, or crystal growth of silicon, (4) effects on cell performance on anisotropic impurity distributions in large CZ crystals and silicon webs, and (5) a preliminary assessment of the permanence of the impurity effects. Two major topics are treated: methods to measure and evaluate impurity effects in silicon and comprehensive tabulations of data derived during the study. For example, discussions of deep level spectroscopy, detailed dark I-V measurements, recombination lifetime determination, scanned laser photo-response, and conventional solar cell I-V techniques, as well as descriptions of silicon chemical analysis are included. Considerable data are tabulated on the composition, electrical, and solar cell characteristics of impurity-doped silicon.

Hopkins, R.H.; Davis, J.R.; Rohatgi, A.; Campbell, R.B.; Blais, P.D.; Rai-Choudhury, P.; Stapleton, R.E.; Mollenkopf, H.C.; McCormick, J.R.

1980-01-01T23:59:59.000Z

149

NREL-Low-Cost Financing with Clean Renewable Energy Bonds Webinar | Open  

Open Energy Info (EERE)

NREL-Low-Cost Financing with Clean Renewable Energy Bonds Webinar NREL-Low-Cost Financing with Clean Renewable Energy Bonds Webinar Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Low-Cost Financing with Clean Renewable Energy Bonds Agency/Company /Organization: National Renewable Energy Laboratory Partner: United States Department of Energy Sector: Energy Topics: Finance Resource Type: Webinar, Training materials, Lessons learned/best practices Website: www.nrel.gov/applying_technologies/state_local_activities/webinar_2009 Low-Cost Financing with Clean Renewable Energy Bonds Screenshot References: Low-Cost Financing with Clean Renewable Energy Bonds[1] Logo: Low-Cost Financing with Clean Renewable Energy Bonds Sponsored by the U.S. Department of Energy Technical Assistance Project for state and local officials, this Webinar described the elements of clean

150

Low-Cost, High-Power Laser for Analytical and Other ...  

Search PNNL. PNNL Home; About; Research; Publications; Jobs; News; Contacts; Low-Cost, High-Power Laser for Analytical and Other Applications. ...

151

ESS 2012 Peer Review - Low-Cost, High-Performance Hybrid Membranes...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DESIGN 2008 www.PosterPresentations.com Low-Cost, High-Performance Hybrid Membranes for Redox Flow Batteries Hongxing Hu, Amsen Technologies LLC DOE SBIR Project, Program...

152

ESS 2012 Peer Review - Low Cost, High-Energy Density Flywheel...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

of Boeing Management Company. Copyright 2011 Boeing. All rights reserved. | 1 Low-Cost, High-Energy Density Flywheel Storage Grid Demonstration" Mike Strasik Program...

153

Production of a Low-Cost DMD Wire Feedstock by Direct ...  

Science Conference Proceedings (OSTI)

Presentation Title, Production of a Low-Cost DMD Wire Feedstock by Direct Consolidation of Ti Sponge. Author(s), Kevin F. Dring, Martin Lefstad, Ola Jensrud.

154

A Low-Cost, High-Efficiency Periodic Flow Gas Turbine for Distributed Energy Generation  

SciTech Connect

The proposed effort served as a feasibility study for an innovative, low-cost periodic flow gas turbine capable of realizing efficiencies in the 39-48% range.

Dr. Adam London

2008-06-20T23:59:59.000Z

155

Ampulse Raises $8 Million to Develop Low-Cost Solar Cells I  

Low-Cost Solar Cells In November 2009 Ampulse ... For consumers the benefits of using this appliance will vary depending on family size and hot

156

Density Functional Theory Study of Copper Oxide as Low-cost ...  

Science Conference Proceedings (OSTI)

Density Functional Theory Study of Copper Oxide as Low-cost Photovoltaic Material Dye-sensitized Solar Cells with Anodized Aluminum Alloy-based Counter-...

157

A Low Cost, High Capacity Regenerable Sorbent for Pre-combustion...  

NLE Websites -- All DOE Office Websites (Extended Search)

A Low Cost, High Capacity Regenerable Sorbent for Pre-combustion CO 2 Capture Background An important component of the Department of Energy (DOE) Carbon Sequestration Program is...

158

An Alternative Low-Cost Process for Deposition of MCrAlY Bond ...  

Science Conference Proceedings (OSTI)

Presentation Title, An Alternative Low-Cost Process for Deposition of MCrAlY Bond Coats for Advanced Syngas/Hydrogen Turbine Applications. Author(s), Ying...

159

NETL: IEP – Post-Combustion CO2 Emissions Control - A Low-Energy, Low-Cost  

NLE Websites -- All DOE Office Websites (Extended Search)

A Low-Energy, Low-Cost Process for Stripping Carbon Dioxide from Absorbents A Low-Energy, Low-Cost Process for Stripping Carbon Dioxide from Absorbents Project No.: FG02-06ER84592 SBIR Glycol Heater, Stripper, MEA Delivery Tank, CO2 and H2O Collection Apparatus Glycol Heater, Stripper, MEA Delivery Tank, CO2 and H2O Collection Apparatus AIL Research, Inc. (AIL) is in the second phase of a small business initiative research (SBIR) project that is assessing the economic and technical feasibility of a carbon dioxide (CO2) stripper that uses an internally heated contactor. The project will determine whether the construction of the internally heated contactor is compatible with the operating conditions of a monoethanolamine stripper and an advanced scrubber (e.g., one that uses a mixture of potassium carbonate and piperazine) and it will also determine the maintenance procedures required

160

Low-cost photovoltaic inverters incorporating application-specific integrated circuits  

SciTech Connect

The positive impact of designing a power conditioner control system for photovoltaic applications with an application-specific integrated circuit (ASIC) as the main control element was demonstrated with detailed computer simulations in Phase I of a two phase Small Business Innovative Research Grant issued by the US Department of Energy. Completion of the design, building and testing of three prototypes using different power semiconductors was successfully accomplished in Phase II. The power rating for the residential utility intertied Sunverters Model 753-4-200 is 5 kW. A stand-alone inverter suitable for operation from a photovoltaic array with or without a battery for energy storage was also developed in this effort. A much needed intermediate power level 50-kW three-phase power conditioner, Sunverter Model 759-4-200, was the third product to evolve from the research and development. All designs take advantage of the ASIC and a complementary microprocessor sampled-data control system. The ASIC-controlled power conditioners provide the high reliability, high efficiency, and low cost needed for photovoltaic applications. They cover the power range from the residential level to utility-sized installations.

O`Sullivan, G.A. [Abacus Controls, Inc., Somerville, NJ (United States); O`Sullivan, J.A. [Washington Univ., St. Louis, MO (United States)

1993-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Low-Cost Hydrogen Distributed Production System Development  

DOE Green Energy (OSTI)

H{sub 2}Gen, with the support of the Department of Energy, successfully designed, built and field-tested two steam methane reformers with 578 kg/day capacity, which has now become a standard commercial product serving customers in the specialty metals and PV manufacturing businesses. We demonstrated that this reformer/PSA system, when combined with compression, storage and dispensing (CSD) equipment could produce hydrogen that is already cost-competitive with gasoline per mile driven in a conventional (non-hybrid) vehicle. We further showed that mass producing this 578 kg/day system in quantities of just 100 units would reduce hydrogen cost per mile approximately 13% below the cost of untaxed gasoline per mile used in a hybrid electric vehicle. If mass produced in quantities of 500 units, hydrogen cost per mile in a FCEV would be 20% below the cost of untaxed gasoline in an HEV in the 2015-2020 time period using EIA fuel cost projections for natural gas and untaxed gasoline, and 45% below the cost of untaxed gasoline in a conventional car. This 20% to 45% reduction in fuel cost per mile would accrue even though hydrogen from this 578 kg/day system would cost approximately $4.14/kg, well above the DOE hydrogen cost targets of $2.50/kg by 2010 and $2.00/kg by 2015. We also estimated the cost of a larger, 1,500 kg/day SMR/PSA fueling system based on engineering cost scaling factors derived from the two H{sub 2}Gen products, a commercial 115 kg/day system and the 578 kg/day system developed under this DOE contract. This proposed system could support 200 to 250 cars per day, similar to a medium gasoline station. We estimate that the cost per mile from this larger 1,500 kg/day hydrogen fueling system would be 26% to 40% below the cost per mile of untaxed gasoline in an HEV and ICV respectively, even without any mass production cost reductions. In quantities of 500 units, we are projecting per mile cost reductions between 45% (vs. HEVs) and 62% (vs ICVs), with hydrogen costing approximately $2.87/kg, still above the DOE's 2010 $2.50/kg target. We also began laboratory testing of reforming ethanol, which we showed is currently the least expensive approach to making renewable hydrogen. Extended testing of neat ethanol in micro-reactors was successful, and we also were able to reform E-85 acquired from a local fueling station for 2,700 hours, although some modifications were required to handle the 15% gasoline present in E-85. We began initial tests of a catalyst-coated wall reformer tube that showed some promise in reducing the propensity to coke with E-85. These coated-wall tests ran for 350 hours. Additional resources would be required to commercialize an ethanol reformer operating on E-85, but there is no market for such a product at this time, so this ethanol reformer project was moth-balled pending future government or industry support. The two main objectives of this project were: (1) to design, build and test a steam methane reformer and pressure swing adsorption system that, if scaled up and mass produced, could potentially meet the DOE 2015 cost and efficiency targets for on-site distributed hydrogen generation, and (2) to demonstrate the efficacy of a low-cost renewable hydrogen generation system based on reforming ethanol to hydrogen at the fueling station.

C.E. (Sandy) Thomas, Ph.D., President; Principal Investigator, and

2011-03-10T23:59:59.000Z

162

Low Cost Fabrication of 2G Wires for AC Applications  

SciTech Connect

Ink-jet printing has been demonstrated as an adaptable technology for printing YBCO filaments using a Metal Organic (MO) YBCO precursor. The technology was demonstrated using AMSC's proprietary metal organic TFA-based YBCO precursor and a commercial piezoelectric print-head on RABiTS templates. Filaments with a width of 100 um and spacing of 200 um were successfully printed, decomposed and processed to YBCO. Critical currents of {approx} 200 A/cm-w were achieved in a series of filaments with a 2 mm width. The single nozzle laboratory printer used in the Phase 1 program is capable of printing {approx} 100 um wide single filaments at a rate of 8-10 cm/sec. The electrical stabilization of filaments with a Ag ink was also evaluated using ink-jet printing. The overall objective of the Phase 1 Project was the evaluation and demonstration of inkjet-printing for depositing YBCO filaments on textured templates (RABiTS, IBAD, ISD, etc. substrates) with properties appropriate for low loss ac conductors. Goals of the Phase 1 program included development of an appropriate precursor ink, demonstration of the printing process, processing and characterization of printed YBCO filaments and evaluation of the process for further development.

Kodenkandath, T.; List, F.A., III

2005-09-15T23:59:59.000Z

163

DEVELOPMENT OF LOW-COST MANUFACTURING PROCESSES FOR PLANAR, MULTILAYER SOLID OXIDE FUEL CELL ELEMENTS  

DOE Green Energy (OSTI)

This report summarizes the results of a four-year project, entitled, ''Low-Cost Manufacturing Of Multilayer Ceramic Fuel Cells'', jointly funded by the U.S. Department of Energy, the State of Ohio, and by project participants. The project was led by NexTech Materials, Ltd., with subcontracting support provided by University of Missouri-Rolla, Michael A. Cobb & Co., Advanced Materials Technologies, Inc., Edison Materials Technology Center, Gas Technology Institute, Northwestern University, and The Ohio State University. Oak Ridge National Laboratory, though not formally a subcontractor on the program, supported the effort with separate DOE funding. The objective of the program was to develop advanced manufacturing technologies for making solid oxide fuel cell components that are more economical and reliable for a variety of applications. The program was carried out in three phases. In the Phase I effort, several manufacturing approaches were considered and subjected to detailed assessments of manufacturability and development risk. Estimated manufacturing costs for 5-kW stacks were in the range of $139/kW to $179/kW. The risk assessment identified a number of technical issues that would need to be considered during development. Phase II development work focused on development of planar solid oxide fuel cell elements, using a number of ceramic manufacturing methods, including tape casting, colloidal-spray deposition, screen printing, spin-coating, and sintering. Several processes were successfully established for fabrication of anode-supported, thin-film electrolyte cells, with performance levels at or near the state-of-the-art. The work in Phase III involved scale-up of cell manufacturing methods, development of non-destructive evaluation methods, and comprehensive electrical and electrochemical testing of solid oxide fuel cell materials and components.

Scott Swartz; Matthew Seabaugh; William Dawson; Harlan Anderson; Tim Armstrong; Michael Cobb; Kirby Meacham; James Stephan; Russell Bennett; Bob Remick; Chuck Sishtla; Scott Barnett; John Lannutti

2004-06-12T23:59:59.000Z

164

Fundamental understanding and development of low-cost, high-efficiency silicon solar cells  

DOE Green Energy (OSTI)

The overall objectives of this program are (1) to develop rapid and low-cost processes for manufacturing that can improve yield, throughput, and performance of silicon photovoltaic devices, (2) to design and fabricate high-efficiency solar cells on promising low-cost materials, and (3) to improve the fundamental understanding of advanced photovoltaic devices. Several rapid and potentially low-cost technologies are described in this report that were developed and applied toward the fabrication of high-efficiency silicon solar cells.

ROHATGI,A.; NARASIMHA,S.; MOSCHER,J.; EBONG,A.; KAMRA,S.; KRYGOWSKI,T.; DOSHI,P.; RISTOW,A.; YELUNDUR,V.; RUBY,DOUGLAS S.

2000-05-01T23:59:59.000Z

165

A low-cost approach to fabrication of multinary compounds for energy-related applications  

DOE Green Energy (OSTI)

Non-vacuum electrodeposition and electroless deposition techniques with a potential to prepare large-area uniform precursor films using low-cost source materials and low-cost capital equipment are very attractive for the growth of compound materials for superconductors and photovoltaic applications. In the first part, a low-cost electrodeposition (ED) method will be discussed for fabrication of high-temperature Tl-oxide-based superconductors. In the second part, electrodeposition and electroless deposition of semiconductor Cu-In-Ga-Se thin films will be discussed.

Bhattacharya, R.N.; Deb, S.K.

2000-01-03T23:59:59.000Z

166

LOW-COST COMPOSITES IN VEHICLE MANUFACTURE - Natural-fiber-reinforced polymer composites in automotive applications.  

SciTech Connect

In the last decade, natural fiber composites have experienced rapid growth in the European automotive market, and this trend appears to be global in scale, provided the cost and performance is justified against competing technologies. However, mass reduction, recyclability, and performance requirements can be met today by competing systems such as injection-molded unreinforced thermoplastics; natural fiber composites will continue to expand their role in automotive applications only if such technical challenges as moisture stability, fiber-polymer interface compatibility, and consistent, repeatable fiber sources are available to supply automotive manufacturers. Efforts underway by Tier I and II automotive suppliers to explore hybrid glass-natural fiber systems, as well as applications that exploit such capabilities as natural fiber sound dampening characteristics, could very well have far-reaching effects. In addition, the current development underway of bio-based resins such as Polyhydroxyalkanoate (PHA) biodegradable polyesters and bio-based polyols could provide fully bio-based composite options to future automotive designers. In short, the development of the natural fiber composite market would make a positive impact on farmers and small business owners on a global scale, reduce US reliance on foreign oil, improve environmental quality through the development of a sustainable resource supply chain, and achieve a better CO2 balance over the vehicle?s lifetime with near-zero net greenhouse gas emissions.

Holbery, Jim; Houston, Dan

2006-11-01T23:59:59.000Z

167

Ultra Large Castings to Produce Low Cost Aluminum Vehicle Structures  

DOE Green Energy (OSTI)

Through a cooperative effort with the U.S. Department of Energy (DOE) Office of Heavy Vehicle Technologies (OHVT), Alcoa is developing a casting process to produce ultra large thin wall components. The casting process is a low pressure, metal mold, multiport injection vertical casting process. The specific system for demonstration of the process is located at Alcoa's Technology Center and will be capable of producing parts extending 3 M long, 1.7 M wide and 0.4 M high. For example, single castings of car floor pan frames or side wall aperture structures are candidates for this installation. This shall provide a major opportunity to reduce the cost of lightweight transportation vehicle structures by (a) reducing the components or part count and (b) reducing the cost of assembly. To develop and demonstrate the process, an inner panel of the Chrysler minivan liftgate will be first produced on this system. Through computer analyses, the cast inner panel design was developed to satisfy both structural performance and casting process requirements. Currently, this is an 11 part assembly of steel components. At the time of this abstract, the numerous system components are in various phases of fabrication and site preparation is fully underway, with system shakedown beginning in the second quarter of 1999. Successful demonstration of caster system operation is anticipated to occur during the third quarter and production of a high quality product during the fourth quarter. Although the process is targeted toward reducing the cost of lightweight trucks, buses and autos, consideration is being given to application in the aircraft industry.

T. N. Meyer; M. J. Kinosz; E. M. Bradac; M. Mbaye; J. T. Burg; M. A. Klingensmith

1999-04-26T23:59:59.000Z

168

Low cost materials of construction for biological processes: Proceedings  

DOE Green Energy (OSTI)

The workshop was held, May 1993 in conjunction with the 15th Symposium on Biotechnology for Fuels and Chemicals. The purpose of this workshop was to present information on the biomass to ethanol process in the context of materials selection and through presentation and discussion, identify promising avenues for future research. Six technical presentations were grouped into two sessions: process assessment and technology assessment. In the process assessment session, the group felt that the pretreatment area would require the most extensive materials research due the complex chemical, physical and thermal environment. Discussion centered around the possibility of metals being leached into the process stream and their effect on the fermentation mechanics. Linings were a strong option for pretreatment assuming the economics were favorable. Fermentation was considered an important area for research also, due to the unique complex of compounds and dual phases present. Erosion in feedstock handling equipment was identified as a minor concern. In the technology assessment session, methodologies in corrosion analysis were presented in addition to an overview of current coatings/linings technology. Widely practiced testing strategies, including ASTM methods, as well as novel procedures for micro-analysis of corrosion were discussed. Various coatings and linings, including polymers and ceramics, were introduced. The prevailing recommendations for testing included keeping the testing simple until the problem warranted a more detailed approach and developing standardized testing procedures to ensure the data was reproducible and applicable. The need to evaluate currently available materials such as coatings/linings, carbon/stainless steels, or fiberglass reinforced plastic was emphasized. It was agreed that economic evaluation of each material candidate must be an integral part of any research plan.

Not Available

1993-05-13T23:59:59.000Z

169

Low Cost, High Efficiency, High Pressure Hydrogen Storage  

DOE Green Energy (OSTI)

A technical and design evaluation was carried out to meet DOE hydrogen fuel targets for 2010. These targets consisted of a system gravimetric capacity of 2.0 kWh/kg, a system volumetric capacity of 1.5 kWh/L and a system cost of $4/kWh. In compressed hydrogen storage systems, the vast majority of the weight and volume is associated with the hydrogen storage tank. In order to meet gravimetric targets for compressed hydrogen tanks, 10,000 psi carbon resin composites were used to provide the high strength required as well as low weight. For the 10,000 psi tanks, carbon fiber is the largest portion of their cost. Quantum Technologies is a tier one hydrogen system supplier for automotive companies around the world. Over the course of the program Quantum focused on development of technology to allow the compressed hydrogen storage tank to meet DOE goals. At the start of the program in 2004 Quantum was supplying systems with a specific energy of 1.1-1.6 kWh/kg, a volumetric capacity of 1.3 kWh/L and a cost of $73/kWh. Based on the inequities between DOE targets and Quantums then current capabilities, focus was placed first on cost reduction and second on weight reduction. Both of these were to be accomplished without reduction of the fuel systems performance or reliability. Three distinct areas were investigated; optimization of composite structures, development of smart tanks that could monitor health of tank thus allowing for lower design safety factor, and the development of Cool Fuel technology to allow higher density gas to be stored, thus allowing smaller/lower pressure tanks that would hold the required fuel supply. The second phase of the project deals with three additional distinct tasks focusing on composite structure optimization, liner optimization, and metal.

Mark Leavitt

2010-03-31T23:59:59.000Z

170

Low-Cost Manufacturable Microchannel Systems for Passive PEM Water Management  

NLE Websites -- All DOE Office Websites (Extended Search)

Manufacturable Manufacturable Microchannel Systems for Passive PEM Water Management IIPS Number 16910 Low Low - - Cost Cost Manufacturable Manufacturable Microchannel Systems for Passive Microchannel Systems for Passive PEM Water Management PEM Water Management IIPS Number 16910 IIPS Number 16910 Ward TeGrotenhuis, Susie Stenkamp, Curt Lavender Pacific Northwest National Laboratories Richland, WA HFCIT Kick Off Meeting February 2007 2 Project objective: Create a low cost and passive PEM water management system Project objective: Project objective: Create a low cost Create a low cost and passive PEM water management system and passive PEM water management system Specific Targets Addressed for 3.4.2 Automotive-Scale: 80 kWe Integrated Transportation Fuel Cell Power Systems Operating on Direct Hydrogen

171

Advanced, Low-Cost Solar Water Heating Research Project | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Advanced, Low-Cost Solar Water Heating Advanced, Low-Cost Solar Water Heating Research Project Advanced, Low-Cost Solar Water Heating Research Project The U.S. Department of Energy is currently conducting research into advanced low-cost solar water heating. This project will employ innovative techniques to adapt water heating technology to meet U.S. market requirements, including specifications, cost, and performance targets. Project Description This project seeks to identify and resolve technical, performance, and cost barriers to the development of easy-to-install and reliable solar water heating systems for all major U.S. climate regions. The project will also evaluate opportunities for breakthrough system innovations and innovations in advanced system performance ratings. Project Partners

172

A direct thin-film path towards low-cost large-area III-V ...  

A direct thin-film path towards low-cost large-area III-V ... depending on the surface energy constraints of the nucleation ... scaling all times in ...

173

Low Cost High Performance Generator Technology Program. Volume 5. Heat Pipe Topical  

DOE Green Energy (OSTI)

Research progress towards the development of a heat pipe for use in the Low Cost High Performance Thermoelectric Generator Program is reported for the period May 15, 1975 through June 1975. (TFD)

Not Available

1975-07-01T23:59:59.000Z

174

Low-Cost Nano-Patterning Process Makes Millions of Holes in Silver...  

NLE Websites -- All DOE Office Websites (Extended Search)

solar cells. NREL researchers have demonstrated a simple, low-cost way to pattern nano-sized holes in thin silver films in order to trap light waves and boost the...

175

ESS 2012 Peer Review - Iron Based Flow Batteries for Low Cost...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EnergyOffice of Electricity's Energy Storage Program. Iron Based Flow Batteries for Low Cost Grid Level Energy Storage J.S. Wainright, R. F. Savinell, P.I.s Dept. of Chemical...

176

Evaluation of a Low-Cost Salmon Production Facility, 1986 Annual Report.  

DOE Green Energy (OSTI)

This fiscal year 1986 study sponsored by the Bonneville Power Administration evaluates the presently existing, low-cost salmon production facility operated and maintained by the Clatsop Economic Development Committee's Fisheries Project.

Hill, James M.

1986-12-01T23:59:59.000Z

177

Evaluation of a Low-Cost Salmon Production Facility, 1985 Annual Report.  

DOE Green Energy (OSTI)

This fiscal year 1985 study sponsored by the Bonneville Power Administration evaluates the presently existing low-cost salmon production facility operated and maintained by the Clatsop Economic Development Committee Fisheries Project.

Hickerson, Andrew W.; Hill, James M.

1985-12-01T23:59:59.000Z

178

Low-Cost Zero-Emission Primary Magnesium Production by Solid ...  

Science Conference Proceedings (OSTI)

Abstract Scope, Solid Oxide Membrane (SOM) Electrolysis is a new low-cost process for direct extraction of magnesium oxide to pure magnesium and oxygen gas. .... Grain Refinement of AZ91 Alloy by Addition of Ceramic Particles.

179

No- and Low-Cost Energy-Saving Tips for Multifamily Housing Common...  

NLE Websites -- All DOE Office Websites (Extended Search)

No- and Low-Cost Energy-Saving Tips for Multifamily Housing Common Areas Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing...

180

Evaluation of a Low-Cost Salmon Production Facility, 1984 Annual Report.  

DOE Green Energy (OSTI)

This fiscal year 1984 study sponsored by the Bonneville Power Administration evaluates the presently existing low-cost salmon production facility operated and maintained by the Clatsop Economic Development Committee's Fisheries Project.

Hickerson, Andrew W.; Hill, James M.

1984-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Design and testing of components for a low cost laser cutter  

E-Print Network (OSTI)

The main goal of this thesis is to document the design and testing of various components for use in a low cost laser cutting mechanism for hobbyists and recreational designers. Different electronics were used to assess the ...

Ramos, Joshua D

2011-01-01T23:59:59.000Z

182

Low-Cost Continuous Production of Carbon Fiber-Reinforced Aluminum Composites .  

E-Print Network (OSTI)

??The research conducted in this study was concerned with the development of low-cost continuous production of carbon fiber/aluminum composites. Two coatings, alumina and zirconia, were (more)

Durkin, Craig Raymond

2007-01-01T23:59:59.000Z

183

ORNL makes low-cost carbon fiber available to American manufacturers...  

NLE Websites -- All DOE Office Websites (Extended Search)

material for prototyping of composite applications are invited to come and talk to us." ORNL is accepting proposals from companies that want to try out the low-cost carbon fiber to...

184

ESS 2012 Peer Review - Low Cost, High Performance and Long Life...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

* High-efficiency * Uniformity EnergyPod Low Cost, High Performance and Long Life Flow Battery Electrodes TM A Breakthrough In Distributed, Grid Scale Energy Storage ARPA-E has...

185

NETL: A Low Cost, High Capacity Regenerable Sorbent for Pre-combustion...  

NLE Websites -- All DOE Office Websites (Extended Search)

A Low Cost, High Capacity Regenerable Sorbent for Pre-combustion CO2 Capture Project No.: DE-FE0000469 TDA Research (TDA) is testing and validating the technical and economic...

186

Low Cost High-H2 Syngas Production for Power and Liquid Fuels  

NLE Websites -- All DOE Office Websites (Extended Search)

Low Cost High-H2 Syngas Production for Power and Liquid Fuels Gas Technology Institute (GTI) Project Number: FE0011958 Project Description Proof-of-concept of a metal-polymeric...

187

Low cost monitoring system to diagnose problematic rail bed : case study of Mud Pumping Site  

E-Print Network (OSTI)

This thesis describes the development of low cost sensors and wireless sensor network (WSN) platform aimed at characterizing problematic rail beds (subgrade). The instrumentations are installed at a busy high-speed Northeast ...

Aw, Eng Sew, 1978-

2007-01-01T23:59:59.000Z

188

Design and prototyping of a low-cost portable mechanical ventilator  

E-Print Network (OSTI)

This paper describes the design and prototyping of a low-cost portable mechanical ventilator for use in mass casualty cases and resource-poor environments. The ventilator delivers breaths by compressing a conventional ...

Powelson, Stephen K. (Stephen Kirby)

2010-01-01T23:59:59.000Z

189

Small Scale SOFC Demonstration Using Bio-Based and Fossil Fuels  

SciTech Connect

Technology Management, Inc. (TMI) of Cleveland, Ohio, has completed the project entitled ??Small Scale SOFC Demonstration using Bio-based and Fossil Fuels.? Under this program, two 1-kW systems were engineered as technology demonstrators of an advanced technology that can operate on either traditional hydrocarbon fuels or renewable biofuels. The systems were demonstrated at Patterson's Fruit Farm of Chesterland, OH and were open to the public during the first quarter of 2012. As a result of the demonstration, TMI received quantitative feedback on operation of the systems as well as qualitative assessments from customers. Based on the test results, TMI believes that > 30% net electrical efficiency at 1 kW on both traditional and renewable fuels with a reasonable entry price is obtainable. The demonstration and analysis provide the confidence that a 1 kW entry-level system offers a viable value proposition, but additional modifications are warranted to reduce sound and increase reliability before full commercial acceptance.

Michael Petrik; Robert Ruhl

2012-03-31T23:59:59.000Z

190

Embedded Checker Architectures for Cyclic and Low-Cost Arithmetic Codes  

Science Conference Proceedings (OSTI)

Code checkers that monitor the outputs of a system can detect both permanent and transient faults. We present two novel architectures of embedded self-testing checkers for low-cost and cyclic arithmetic codes, one based on code word generators and adders, ... Keywords: built-in self-test, code checkers, code word accumulators, code word generators, cyclic arithmetic codes, embedded checkers, low-cost arithmetic codes, on-line test, totally self-checking checkers

Albrecht P. Stroele; Steffen Tarnick

2000-08-01T23:59:59.000Z

191

Low-Cost Options for Moderate Levels of Mercury Control  

Science Conference Proceedings (OSTI)

This is the final technical report for a three-site project that is part of an overall program funded by the U.S. Department of Energy's National Energy Technology Laboratory (DOE/NETL) and industry partners to obtain the necessary information to assess the feasibility and costs of controlling mercury from coal-fired utility plants. This report summarizes results from tests conducted at MidAmerican's Louisa Generating Station and Entergy's Independence Steam Electric Station (ISES) and sorbent screening at MidAmerican's Council Bluffs Energy Center (CBEC) (subsequently renamed Walter Scott Energy Center (WSEC)). Detailed results for Independence and Louisa are presented in the respective Topical Reports. As no full-scale testing was conducted at CBEC, screening updates were provided in the quarterly updates to DOE. ADA-ES, Inc., with support from DOE/NETL, EPRI, and other industry partners, has conducted evaluations of EPRI's TOXECON II{trademark} process and of high-temperature reagents and sorbents to determine the capabilities of sorbent/reagent injection, including activated carbon, for mercury control on different coals and air emissions control equipment configurations. An overview of each plant configuration is presented: (1) MidAmerican's Louisa Generating Station burns Powder River Basin (PRB) coal in its 700-MW Unit 1 and employs hot-side electrostatic precipitators (ESPs) with flue gas conditioning for particulate control. This part of the testing program evaluated the effect of reagents used in the existing flue gas conditioning on mercury removal. (2) MidAmerican's Council Bluffs Energy Center typically burns PRB coal in its 88-MW Unit 2. It employs a hot-side ESP for particulate control. Solid sorbents were screened for hot-side injection. (3) Entergy's Independence Steam Electric Station typically burns PRB coal in its 880-MW Unit 2. Various sorbent injection tests were conducted on 1/8 to 1/32 of the flue gas stream either within or in front of one of four ESP boxes (SCA = 542 ft{sup 2}/kacfm), specifically ESP B. Initial mercury control evaluations indicated that although significant mercury control could be achieved by using the TOXECON II{trademark} design, the sorbent concentration required was higher than expected, possibly due to poor sorbent distribution. Subsequently, the original injection grid design was modeled and the results revealed that the sorbent distribution pattern was determined by the grid design, fluctuations in flue gas flow rates, and the structure of the ESP box. To improve sorbent distribution, the injection grid and delivery system were redesigned and the effectiveness of the redesigned system was evaluated. This project was funded through the DOE/NETL Innovations for Existing Plants program. It was a Phase II project with the goal of developing mercury control technologies that can achieve 50-70% mercury capture at costs 25-50% less than baseline estimates of $50,000-$70,000/lb of mercury removed. Results from testing at Independence indicate that the DOE goal was successfully achieved. Further improvements in the process are recommended, however. Results from testing at Louisa indicate that the DOE goal was not achievable using the tested high-temperature sorbent. Sorbent screening at Council Bluffs also indicated that traditional solid sorbents may not achieve significant mercury removal in hot-side applications.

Sharon Sjostrom

2008-02-09T23:59:59.000Z

192

Nutritionally Enhanced Edible Oil and Oilseed ProcessingChapter 13 Low-Cost Oil-Processing Techniques  

Science Conference Proceedings (OSTI)

Nutritionally Enhanced Edible Oil and Oilseed Processing Chapter 13 Low-Cost Oil-Processing Techniques Processing eChapters Processing Press Downloadable pdf of Chapter 13 Low-Cost Oil-Processing Techniques from t

193

Low-Cost Energy Efficiency Goes Block-to-Block | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Low-Cost Energy Efficiency Goes Block-to-Block Low-Cost Energy Efficiency Goes Block-to-Block Low-Cost Energy Efficiency Goes Block-to-Block February 20, 2010 - 6:21pm Addthis An innovative pilot program in Minneapolis, Minnesota, focuses on rallying whole communities around energy efficiency, one neighborhood at a time. Through the program, area residents cash in on a home energy-efficiency upgrade that saves them roughly $130 on their annual energy bill. All they have to contribute is a little time and a small initial payment. "The most effective way to get people involved is for people to tell each other, neighbor to neighbor," says Lola Schoenrich, who signed up after reading about the program in her neighborhood newsletter. She even volunteered to go door-to-door on her block handing out registration

194

Low-Cost Energy Efficiency Goes Block-to-Block | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Low-Cost Energy Efficiency Goes Block-to-Block Low-Cost Energy Efficiency Goes Block-to-Block Low-Cost Energy Efficiency Goes Block-to-Block February 20, 2010 - 6:21pm Addthis An innovative pilot program in Minneapolis, Minnesota, focuses on rallying whole communities around energy efficiency, one neighborhood at a time. Through the program, area residents cash in on a home energy-efficiency upgrade that saves them roughly $130 on their annual energy bill. All they have to contribute is a little time and a small initial payment. "The most effective way to get people involved is for people to tell each other, neighbor to neighbor," says Lola Schoenrich, who signed up after reading about the program in her neighborhood newsletter. She even volunteered to go door-to-door on her block handing out registration

195

Mainstream Engineering Develops a Low-Cost Energy-Saving Device for A/C  

NLE Websites -- All DOE Office Websites (Extended Search)

Mainstream Engineering Develops a Low-Cost Energy-Saving Device Mainstream Engineering Develops a Low-Cost Energy-Saving Device for A/C Systems Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) SBIR/STTR Home About Funding Opportunity Announcements (FOAs) Applicant and Awardee Resources Commercialization Assistance Other Resources Awards SBIR/STTR Highlights Reporting Fraud Contact Information Small Business Innovation Research and Small Business Technology Transfer U.S. Department of Energy SC-29/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-5707 F: (301) 903-5488 E: sbir-sttr@science.doe.gov More Information » January 2013 Mainstream Engineering Develops a Low-Cost Energy-Saving Device for A/C Systems Mainstream is achieving its goal to commercialize practical and

196

NETL: IEP - Post-Combustion CO2 Emissions Control - Low Cost Sorbent for  

NLE Websites -- All DOE Office Websites (Extended Search)

Low Cost Sorbent for Capturing CO2 Emissions Generated by Existing Coal-Fired Power Plants Low Cost Sorbent for Capturing CO2 Emissions Generated by Existing Coal-Fired Power Plants Project No.: DE-NT0005497 TDA sorbent test equipment TDA sorbent test equipment. TDA Research Inc. will produce and evaluate a low-cost solid sorbent developed in prior laboratory testing. The process uses an alkalized alumina adsorbent to capture carbon dioxide (CO2) at intermediate temperature and near ambient pressure. The physical adsorbent is regenerated with low-pressure steam. Although the regeneration is primarily by concentration swing, the adsorption of steam on the sorbent during regeneration also provides approximately 8°C to 10°C of temperature swing, further enhancing the regeneration rate. The sorbent is transferred between two moving bed reactors. Cycling results in gas

197

On the Path to Low Cost Renewable Fuels, an Important Breakthrough |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

On the Path to Low Cost Renewable Fuels, an Important Breakthrough On the Path to Low Cost Renewable Fuels, an Important Breakthrough On the Path to Low Cost Renewable Fuels, an Important Breakthrough April 18, 2013 - 4:10pm Addthis NREL Scientist Bryon Donohoe looks at different views of ultra structures of pre-treated biomass materials in the Cellular Visualization room of the Biomass Surface Characterization Lab. | Photo by Dennis Schroeder, NREL. NREL Scientist Bryon Donohoe looks at different views of ultra structures of pre-treated biomass materials in the Cellular Visualization room of the Biomass Surface Characterization Lab. | Photo by Dennis Schroeder, NREL. A researcher examines a strain of the fermentation microorganism Zymomonas mobilis on a culture plate. NREL has genetically engineered and patented its own strains of Zymomonas mobilis to more effectively ferment the multiple sugars found in biomass as part of the cellulosic ethanol-to-renewable fuel conversion process. | Photo by Dennis Schroeder, NREL.

198

Design of a low-cost thermoacoustic electricity generator and its experimental verification  

SciTech Connect

This paper describes the design and testing of a low cost thermoacoustic generator. A travelling-wave thermoacoustic engine with a configuration of a looped-tube resonator is designed and constructed to convert heat to acoustic power. A commercially available, low-cost loudspeaker is adopted as the alternator to convert the engine's acoustic power to electricity. The whole system is designed using linear thermoacoustic theory. The optimization of different parts of the thermoacoustic generator, as well as the matching between the thermoacoustic engine and the alternator are discussed in detail. A detailed comparison between the preliminary test results and linear thermoacoustic predictions is provided.

Backhaus, Scott N [Los Alamos National Laboratory; Yu, Z [UNIV OF MANCHESTER; Jaworski, A J [UNIV OF MANCHESTER

2010-01-01T23:59:59.000Z

199

Joint Development of Coated Conductor and Low Cost Thin Film Solar Cells: Cooperative Research and Development Final Report, CRADA Number CRD-007-213  

DOE Green Energy (OSTI)

UES plans on developing CIGS thin films by using Metal Organic Deposition (MOD) technique as it is a low-cost, non-vacuum method for scale-up to large area PV modules. NREL will support UES, Inc. through expert processing, characterization and device fabrication. NREL scientists will also help develop a processing phase diagram which includes composition, film thickness, annealing temperature and ambient conditions. Routine measurements of devices and materials will be done under NREL's core support project.

Bhattacharya, R.

2011-02-01T23:59:59.000Z

200

Low-Cost Ash-Derived Construction Materials: State-of-the-Art Assessment  

Science Conference Proceedings (OSTI)

Existing technologies have been successfully applied in the manufacturing of construction materials that incorporate coal combustion byproducts. This report describes an extensive literature review on coal ash use in low-cost building materials, including information on technical and economic feasibility.

1992-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Low-Cost Solar Array (LSA) Project. Project quarterly report No. 9, April--June 1978  

DOE Green Energy (OSTI)

Progress made by the Low-Cost Solar Array Project during the period April through June 1978 is described. It includes reports on silicon material processing, large-area silicon sheet development, encapsulation materials testing and development, project engineering and operations activities, and manufacturing techniques, plus the steps taken to integrate these efforts.

Not Available

1978-01-01T23:59:59.000Z

202

LOW-COST, HIGH-PERFORMANCE MATERIALS USING ILLINOIS COAL COMBUSTION BY-PRODUCTS  

E-Print Network (OSTI)

be manufactured having cement replacement with Illinois coal ashes and their blends in the range of 0 to 60LOW-COST, HIGH-PERFORMANCE MATERIALS USING ILLINOIS COAL COMBUSTION BY-PRODUCTS Investigators technology for high-volume applications of Illinois coal combustion by-products generated by using both

Wisconsin-Milwaukee, University of

203

Low-cost site-assembled solar collector designs for use with heat pumps  

DOE Green Energy (OSTI)

Four low cost solar collector designs have been produced for use in solar assisted heat pump systems. Three principles guided the design: the use of air as the heat transfer medium, the use of on-site easy-to-install construction rather than modularized prefabricated construction, and the collection of solar energy at reduced temperatures.

Andrews, J W; Wilhelm, W

1977-05-01T23:59:59.000Z

204

A low cost system for implementing FADCs in imaging atmospheric ^Cerenkov astronomy  

E-Print Network (OSTI)

A low cost system for implementing FADCs in imaging atmospheric ^Cerenkov astronomy M. D. Roberts. The success of early imaging cameras in ground based ^Cerenkov as- tronomy has led to demand for increased a ^Cerenkov imaging camera. A further bene t of this system is that it reduces the amount of data recorded

Adelaide, University of

205

ESS 2012 Peer Review - Redox Flow Battery (RFB) with Low-cost...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

and 1.2 m 3 footprint ITN Energy Systems, Inc., Littleton, CO 2.5kW10kWh Redox Flow Battery (RFB) with Low-cost Electrolyte and Membrane Technologies 2.1 M, 33-month program...

206

A low-cost 3 projector display system for pain reduction and improved patient recovery times  

Science Conference Proceedings (OSTI)

Medical procedures are often associated with discomfort, pain and anxiety. Previous studies have shown that one way to reduce pain during treatment is to watch nature scenes and listen to nature sounds or escape into immersive virtual environments. This ... Keywords: head-mounted displays, immersive virtual environments, low-cost 3 projector display system, pain reduction, restorative virtual environments

Eric Fassbender; Paulo de Souza

2012-11-01T23:59:59.000Z

207

Electronic shepherd - a low-cost, low-bandwidth, wireless network system  

Science Conference Proceedings (OSTI)

This paper reports a new novel low-cost, wireless communication network system, called the "Electronic Shepherd" (ES). The system is innovative in the way that it supports flock behavior, meaning that a flock leader monitors the state of the other elements ... Keywords: GPRS, GPS, animal tracking, cost-effective communication, low-power equipment, rural computing, short-range communication, wireless network

Bjrn Thorstensen; Tore Syversen; Trond-Are Bjrnvold; Tron Walseth

2004-06-01T23:59:59.000Z

208

Testing and Analysis of Low Cost Composite Materials Under Spectrum Loading and High Cycle Fatigue Conditions  

E-Print Network (OSTI)

papers cited are available through the Sandia National Laboratories website: www.sandia.gov/Renewable_Energy/wind_energy-year experimental study of low- cost composite materials for wind turbine blades. Wind turbines are subjected to 109 in and potential interactions between failure modes. Wind turbine design codes typically assume a Miner's rule

209

Low-Cost Single-Phase Powered Induction Machine Drive for Residential Applications  

E-Print Network (OSTI)

-usage. Reliability was estimated via MTBF as calculated per MIL-HDBK-217 for each sub-system as well as the complete

Chapman, Patrick

210

Low-cost CdZnTe devices for cascade cell application  

DOE Green Energy (OSTI)

This report describes a research program to develop a low-cost technique for producing Cd{sub 1-x}Zn{sub x}Te devices for cascade solar cell applications. The technique involves a two-stage process for fabricating such devices with a band gap of about 1.7 eV and a transparent contact layer of low-resistivity ZnTe. In the first stage, thin films of Cd, Zn, and Te are deposited in stacked layers as Cd{sub 1-x}An{sub x}Te. The second stage involves hearing and reacting the layers to form the compound. At first, electrodeposition was used for depositing the layers to successfully fabricate Dc{sub 1-x}Zn{sub x}Te thin-film devices. These films were also intrinsically doped with copper. For the first time, transparent ZnTe films of low resistivity were obtained in a two-stage process; preliminary solar cells using films with low Zn content were demonstrated. A second phase of the project involved growing films with higher Zn content (>15%). Such films were grown on CdS-coated substrates for fabricating devices. The effects of the solar-cell processing steps on the Cd{sub 1-x}Zn{sub x}Te and CdS/Cd{sub 1-x}Zn{sub x}Te interfaces were studied; results showed that the nature of the interface depended on the stoichiometry of the Cd{sub 1-x}Zn{sub x}Te thin film. A sharp interface was observed for the CdS/CdTe structures, but the interface became highly diffused as the Zn content in the absorber layer increased above 15%. The interaction between the CdS window layer and the Cd{sub 1-x}Zn{sub x}Te absorber layer was found to result from an exchange reaction between Zn in the absorber layer and the thin CdS film. 14 refs., 10 figs.

Basol, B.M.; Kapur, V.K. (International Solar Electric Technology, Inglewood, CA (USA))

1990-11-01T23:59:59.000Z

211

Low-Cost Superconducting Wire for Wind Generators: High Performance, Low Cost Superconducting Wires and Coils for High Power Wind Generators  

SciTech Connect

REACT Project: The University of Houston will develop a low-cost, high-current superconducting wire that could be used in high-power wind generators. Superconducting wire currently transports 600 times more electric current than a similarly sized copper wire, but is significantly more expensive. The University of Houstons innovation is based on engineering nanoscale defects in the superconducting film. This could quadruple the current relative to todays superconducting wires, supporting the same amount of current using 25% of the material. This would make wind generators lighter, more powerful and more efficient. The design could result in a several-fold reduction in wire costs and enable their commercial viability of high-power wind generators for use in offshore applications.

None

2012-01-01T23:59:59.000Z

212

Development of Low-Cost Manufacturing Processes for Planar, Multilayer Solid Oxide Fuel Cell Elements  

DOE Green Energy (OSTI)

This report summarizes the results of Phase II of this program, 'Low-Cost Manufacturing Of Multilayer Ceramic Fuel Cells'. The objective of the program is to develop advanced ceramic manufacturing technologies for making planar solid oxide fuel cell (SOFC) components that are more economical and reliable for a variety of applications. Phase II development work focused on three distinct manufacturing approaches (or tracks) for planar solid oxide fuel cell elements. Two development tracks, led by NexTech Materials and Oak Ridge National Laboratory, involved co-sintering of planar SOFC elements of cathode-supported and anode-supported variations. A third development track, led by the University of Missouri-Rolla, focused on a revolutionary approach for reducing operating temperature of SOFCs by using spin-coating to deposit ultra-thin, nano-crystalline YSZ electrolyte films. The work in Phase II was supported by characterization work at Ohio State University. The primary technical accomplishments within each of the three development tracks are summarized. Track 1--NexTech's targeted manufacturing process for planar SOFC elements involves tape casting of porous electrode substrates, colloidal-spray deposition of YSZ electrolyte films, co-sintering of bi-layer elements, and screen printing of opposite electrode coatings. The bulk of NexTech's work focused on making cathode-supported elements, although the processes developed at NexTech also were applied to the fabrication of anode-supported cells. Primary accomplishments within this track are summarized below: (1) Scale up of lanthanum strontium manganite (LSM) cathode powder production process; (2) Development and scale-up of tape casting methods for cathode and anode substrates; (3) Development of automated ultrasonic-spray process for depositing YSZ films; (4) Successful co-sintering of flat bi-layer elements (both cathode and anode supported); (5) Development of anode and cathode screen-printing processes; and (6) Demonstration of novel processes for composite cathode and cermet anode materials. Track 2--ORNL's development work focused solely on making anode-supported planar cells by tape casting of a porous anode substrate, screen printing of a YSZ electrolyte film, co-sintering of the bi-layer element, and screen-printing of an opposite cathode coating. Primary accomplishments within this track are summarized below: (1) Development and scale-up of anode tape casting and lamination processes; (2) Development of proprietary ink vehicle for screen-printing processes; (3) Development of screen-printing process for depositing YSZ films; (4) Successful co-sintering of flat bi-layer anode-supported elements; and (5) Development of cathode screen-printing process. Track 3--UMR's process development work involved fabrication of a micro-porous cathode substrate, deposition of a nano-porous interlayer film, deposition of nano-crystalline YSZ electrolyte films from polymeric precursor solutions, and deposition of an anode coating. Primary accomplishments within this track are summarized below: (1) Development and scale up of tape casting and sintering methods for cathode substrates; (2) Deposition of nano-porous ceria interlayer films on cathode substrates; (3) Successful deposition of dense YSZ films on porous cathode substrates; and (4) Identification of several anode material options.

Scott Swartz; Matthew Seabaugh; William Dawson; Tim Armstrong; Harlan Anderson; John Lannutti

2001-09-30T23:59:59.000Z

213

NREL: News Feature - Super-Efficient Cells Key to Low-Cost Solar Power  

NLE Websites -- All DOE Office Websites (Extended Search)

Super-Efficient Cells Key to Low-Cost Solar Power Super-Efficient Cells Key to Low-Cost Solar Power February 16, 2011 This photo shows eight Amonix 7700 solar power generators, those in front tilted horizontally, those in the rear tilted near vertically. Each is a huge rectangle divided into hundreds of squares holding cells and lenses. Enlarge image The Amonix 7700 Concentrated Photovoltaic (CPV) Solar Power Generators are showcasing reliability and undergoing validation-of-performance measurements at the SolarTAC facility in Aurora, Colo. Credit: Dennis Schroeder In this photo, a man in an orange safety vest and hardhat is using a laptop, with large concentrated photovoltaic generators in the background. Enlarge image A technician at SolarTAC in Aurora, CO, enters some numbers into a laptop as he monitors validation of the Amonix 7700 Solar Power Generators.

214

Low Cost Open-Path Instrument for Monitoring Atmospheric Carbon Dioxide at Sequestration Sites  

NLE Websites -- All DOE Office Websites (Extended Search)

Low Cost open-path Instrument for Low Cost open-path Instrument for monItorIng atmospherIC Carbon DIoxIDe at sequestratIon sItes Background Growing concern over the effect on global climate of the buildup of greenhouse gases (GHG), particularly carbon dioxide (CO 2 ), in the atmosphere may lead to the curtailment of CO 2 emissions. One potential course of action by industry to reduce GHG emissions is the subsurface disposal of CO 2 . An important requirement of such disposal is verification that the injected gases remain in place and do not leak to the surface. Perhaps the most direct evidence of a successful sequestration project is the lack of a detectable CO 2 concentration above the background level in the air near the ground. Although measurement of CO 2 concentration can be performed, it is

215

NETL: News Release - Innovative Technology Shows Promise for Low-Cost  

NLE Websites -- All DOE Office Websites (Extended Search)

June 2, 2005 June 2, 2005 Innovative Technology Shows Promise for Low-Cost Mercury Control Patented DOE Process Licensed to Industry for Commercial Development WASHINGTON, DC - Close on the heels of the U.S. Environmental Protection Agency's March 15 release of its Clean Air Mercury Rule, the U.S. Department of Energy has issued a license to private industry to commercially develop a promising low-cost, DOE-patented mercury control technology. MORE INFO Technical Report on the Thief Process [PDF-374KB] DOE's National Energy Technology Laboratory issued the license on a technology called the Thief Process to Mobotec USA, Inc., of Walnut Creek, Calif. Mobotec, a leader in developing cost-effective combustion improvement and multi-pollutant reduction technologies for industrial and

216

Low-Cost Hydrogen-from-Ethanol: A Distributed Production System (Presentation)  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen-from- Hydrogen-from- Ethanol: A Distributed Production System Presented at the Bio-Derived Liquids to Hydrogen Distributed Reforming Working Group Meeting Laurel, Maryland Tuesday, November 6, 2007 H 2 Gen Innovations, Inc. Alexandria, Virginia www.h2gen.com 2 Topics * H 2 Gen Reformer System Innovation * Natural Gas Reformer - Key performance metrics - Summary unique H2A inputs * Ethanol Reformer - Key performance metrics - Summary unique H2A inputs * Questions from 2007 Merit Review 3 H 2 Gen Innovations' Commercial SMR * Compact, low-cost 115 kg/day natural gas reformer proven in commercial practice [13 US Patents granted] * Built-in, unique, low-cost PSA system * Unique sulfur-tolerant catalyst developed with Süd Chemie 4 DOE Program Results * Task 1- Natural Gas Reformer Scaling:

217

Building America Top Innovations Hall of Fame Profile … Low-Cost Ventilation in Production Housing  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

simple, cost-effective techniques for providing fresh air throughout the home, including exhaust-only and central fan-integrated supply ventilation. Building America has refined simple whole-house ventilation systems that cost less than $350 to install. BUILDING AMERICA TOP INNOVATIONS HALL OF FAME PROFILE INNOVATIONS CATEGORY: 1. Advanced Technologies and Practices 1.3 Assured Health, Safety, and Durability Low-Cost Ventilation in Production Housing As high-performance homes get more air-tight and better insulated, attention to good indoor air quality becomes essential. Building America has effectively guided the nation's home builders to embrace whole-house ventilation by developing low-cost options that adapt well to their production processes. When the U.S. Department of Energy's Building America research teams began

218

Low-cost flywheel demonstration program. Final report, 1 October 1977-31 December 1979  

DOE Green Energy (OSTI)

The Applied Physics Laboratory/Department of Energy Low Cost Flywheel Demonstration Program was initiated on 1 October 1977 and was successfully concluded on 31 December 1979. The total cost of this program was $355,190. All primary objectives were successfully achieved as follows: demonstration of a full-size, 1-kWh flywheel having an estimated cost in large-volume production of approximately $50/kWh; development of a ball-bearing system having losses comparable to the losses in a totally magnetic suspension system; successful and repeated demonstration of the low-cost flywheel in a complete flywheel energy-storage system based on the use of ordinary house voltage and frequency; and application of the experience gained in the hardware program to project the system design into a complete, full-scale, 30-kWh home-type flywheel energy-storage system.

Rabenhorst, D.W.; Small, T.R.; Wilkinson, W.O.

1980-04-01T23:59:59.000Z

219

Sensors-00997-2005 Low-Cost Surface Mount LED Gas Sensor  

E-Print Network (OSTI)

INTRODUCTION EDs are being used far more commonly as light sources in optical chemical sensors due to the low-cost, low-power consumption, reliability and ever increasing range of devices and wavelengths available. The increased interest in LED sources has had a major impact on low-cost component based chemical sensors, where the main goal is to achieve analytical performance without the expense of more conventional instrumentation [1-5]. Typically a photodiode is used for detection, providing good sensitivity and a significant reduction in system cost. Usually the photodiode is operated at Vbias=0V and hence itself can be considered as a lowpower sensor, however, in addition to the detector, a good quality operational amplifier and mid-to-high resolution ADC are required to complete the device. These additional components not only increase system complexity and cost, but also add to the power requirements, which is of particular importance in battery-powered s

Sensor Films Results; Roderick L. Shepherd; William S. Yerazunis; Senior Member; King Tong Lau; Dermot Diamond

2005-01-01T23:59:59.000Z

220

Low Cost High Concentration PV Systems for Utility Power Generation Amonix,  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Amonix, Inc. Amonix, Inc. Low Cost High Concentration PV Systems for Utility Power Generation Amonix, Inc. A series of brief fact sheet on various topics including:Low Cost High Concentration PV Systems for Utility Power Generation,High Efficiency Concentrating Photovoltaic Power System,Reaching Grid Parity Using BP Solar Crystalline Silicon Technology, Fully Integrated Building Science Solutions for Residential and Commercial Photovoltaic Energy Generation,A Value Chain Partnership to Accelerate U.S. Photovoltaic Industry Growth,AC Module PV System,Flexible Organic Polymer-Based PV For Building Integrated Commercial Applications,Flexable Integrated PV System,Delivering Grid-Parity Solar Electricity On Flat Commercial Rooftops,Fully Automated Systems Technology, Concentrating Solar Panels: Bringing the Highest Power and Lowest Cost to

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Materials and Modules for Low Cost, High Performance Fuel Cell Humidifiers  

NLE Websites -- All DOE Office Websites (Extended Search)

Kick-off Meeting, Kick-off Meeting, Wash. D.C - 10/01/2009 Materials and Modules for Low Cost, High Performance Fuel Cell Humidifiers Prime Contractor: W. L. Gore & Associates Elkton, MD Principal Investigator: William B. Johnson Sub-Contractor: dPoint Technologies Vancouver, BC W. L. Gore & Associates, Inc. DOE Kick-off Meeting, Wash. D.C - 10/01/2009 Ahluwalia, et. al, ibid. Mirza, Z. DOE Hydrogen Program Review, June 9-13, 2008; Washington, DC Background W. L. Gore & Associates, Inc. DOE Kick-off Meeting, Wash. D.C - 10/01/2009 Objective and Technical Barriers Addressed More efficient, low-cost humidifiers can increase fuel cell inlet humidity: Reduce system cost and size of balance of plant; Improve fuel cell performance; Improve fuel cell durability. OBJECTIVE: Demonstrate a durable, high performance water

222

VibroTactor: low-cost placement-aware technique using vibration echoes on mobile devices  

Science Conference Proceedings (OSTI)

In this paper, we present a low-cost placement-aware technique, called VibroTactor, which allows mobile devices to determine where they are placed (e.g., in a pocket, on a phone holder, on the bed, or on the desk). This is achieved by filtering and analyzing ... Keywords: context-aware, pattern recognition, placement detection, pseudo sensor, sensor repurposing, vibration echoes

Sungjae Hwang; Kwangyun Wohn

2013-03-01T23:59:59.000Z

223

Novel and Low Cost Temperature Sensors for Lines, Transformers, and Cables  

Science Conference Proceedings (OSTI)

This document reports on an investigation into the performance of fiber optic sensing (e.g., in conductors, transformers, and cables) to determine change in fiber characteristics with regards to sensor-aging effects and performance accuracy with time. The project began in 2002 with a rigorous analysis of temperature sensors for both point and distributed systems across a conductor / transformer winding. Key requirements that must be met are low cost, reliable performance, and good aging characteristics (...

2002-12-16T23:59:59.000Z

224

NETL: A Low-Cost, High-Capacity Regenerable Sorbent for CO2 Capture From  

NLE Websites -- All DOE Office Websites (Extended Search)

A Low Cost, High Capacity Regenerable Sorbent for CO2 Capture from Existing Coal-Fired Power Plants A Low Cost, High Capacity Regenerable Sorbent for CO2 Capture from Existing Coal-Fired Power Plants Project No.: DE-FE0007580 TDA Research, Inc is developing a low cost, high capacity CO2 adsorbent and demonstrating its technical and economic viability for post-combustion CO2 capture for existing pulverized coal-fired power plants. TDA is using an advanced physical adsorbent to selectively remove CO2 from flue gas. The sorbent exhibits a much higher affinity to adsorb CO2 than N2, H2O or O2, enabling effective CO2 separation from the flue gas. The sorbent binds CO2 more strongly than common adsorbents, providing the chemical potential needed to remove the CO2, however, because CO2 does not form a true covalent bond with the surface sites, regeneration can be carried out with only a small energy input. The heat input to regenerate the sorbent is only 4.9 kcal per mol of CO2, which is much lower than that for chemical absorbents or amine based solvents.

225

Reclaiming lost capability in power plant coal conversions: an innovative, low-cost approach  

Science Conference Proceedings (OSTI)

Some of the capability lost during coal conversion can be recovered for midrange/peaking power generation through low cost, turbine cycle and economizer modifications. The additional output can be realized by shutting off adjacent high pressure feedwater heaters (as specified by turbogenerator manufacturers) and simultaneously increasing heat input to the economizer. The supplemental economizer heat input makes up for heat lost to the feedwater when extraction steam is shut off. Several options for applying this novel approach to capability recovery are described. The reclaimed capability is realized at somewhat lower efficiency but at low cost, compared to the overall cost of a coal conversion. Rather than return converted units to up to 100% oil or gas firing during periods of high system demand, the proposed method allows the continued comsumption of coal for the base-load portion of the plant's output. The development of the low NO/sub x/ Slagging Combustor will allow even the added economizer heat input to be supplied by relatively low cost coal. Following a brief review of factors affecting boiler capability in coal conversions and current approaches to coal conversion in this country and overseas, the results of a preliminary study that apply the proposed novel concept to a West Coast power plant are described.

Miliaras, E.S.; Kelleher, P.J.; Fujimura, K.S.

1983-01-01T23:59:59.000Z

226

A Compact, Low-Cost GPS Drifter for Use in the Oceanic Nearshore Zone, Lakes, and Estuaries  

Science Conference Proceedings (OSTI)

The design of small, compact, low-cost GPS drifters that utilize off the shelf components is described. The drifters are intended for use in confined or nearshore environments over time scales of up to several days and are a low-cost ...

D. Johnson; R. Stocker; R. Head; J. Imberger; C. Pattiaratchi

2003-12-01T23:59:59.000Z

227

VillageNet: A low-cost, IEEE 802.11-based mesh network for connecting rural areas  

Science Conference Proceedings (OSTI)

VillageNet is a new wireless mesh networking technology that provides low-cost broadband Internet access for wide regions. It targets the rural market around the world, where large populations live but paying capacities are low. VillageNet offers a low-cost, ...

Partha Dutta; Sharad Jaiswal; Rajeev Rastogi

2007-08-01T23:59:59.000Z

228

Contiguous Platinum Monolayer Oxygen Reduction Electrocatalysts on High-Stability-Low-Cost Supports  

NLE Websites -- All DOE Office Websites (Extended Search)

Contiguous Platinum Monolayer Oxygen Reduction Contiguous Platinum Monolayer Oxygen Reduction Electrocatalysts on High-Stability-Low-Cost Supports Co-PIs: Jia Wang, Miomir Vukmirovic, Kotaro Sasaki, Brookhaven National Laboratory Yang Shao-Horn Massachusetts Institute of Technology Rachel O'Malley, David Thompsett, Sarah Ball, Graham Hard Johnson Matthey Fuel Cells Radoslav Adzic Brookhaven National Laboratory DOE Projects Kickoff Meeting September 30 , 2009 2 Project Overview Project Overview 1. Objectives: Objectives: Developing high performance fuel cell electrocatalysts for the oxygen reduction reaction (ORR) comprising contiguous Pt monolayer Pt monolayer on stable, inexpensive metal or alloy nanorods, nanowires, nanobars and

229

Low Cost Production of InGaN for Next-Generation Photovoltaic Devices  

SciTech Connect

The goal of this project is to develop a low-cost and low-energy technology for production of photovoltaic devices based on InGaN materials. This project builds on the ongoing development by Structured Materials Industries (SMI), of novel thin film deposition technology for Group III-Nitride materials, which is capable of depositing Group-III nitride materials at significantly lower costs and significantly lower energy usage compared to conventional deposition techniques. During this project, SMI demonstrated deposition of GaN and InGaN films using metalorganic sources, and demonstrated compatibility of the process with standard substrate materials and hardware components.

Nick M. Sbrockey, Shangzhu Sun, Gary S. Tompa,

2012-07-09T23:59:59.000Z

230

NETL: News Release - New, Low-Cost Approach to 4-D Imaging of CO2  

NLE Websites -- All DOE Office Websites (Extended Search)

7, 2005 7, 2005 New, Low-Cost Approach to 4-D Imaging of CO2 Flood Yields Breakthrough DOE-Funded Kansas Research to Bolster Economics of Marginal EOR Projects TULSA, OK - - U.S. Department of Energy-funded research has yielded a breakthrough in high-resolution subsurface imaging with the first low-cost depiction of CO2 movement through a thin, shallow oil reservoir. The University of Kansas Center for Research project combines the time-lapse approach of 4-D seismic, which is essentially a series of three-dimensional images recorded over time, with a carefully selected application of the higher-resolution imaging of other advanced seismic technologies. The first-of-its-kind project is being implemented for a landmark CO2 flood pilot project underway in the Hall-Gurney oilfield, near Russell, Kan. That pilot-itself the first CO2 flood in Kansas-also is funded by DOE. Both projects are managed by the Office of Fossil Energy's National Energy Technology Laboratory as part of its Enhanced Oil Recovery (EOR) program.

231

NETL: IEP - Bench-Scale Silicone Process for Low-Cost CO2 Capture  

NLE Websites -- All DOE Office Websites (Extended Search)

Bench-Scale Silicone Process for Low-Cost CO2 Capture Bench-Scale Silicone Process for Low-Cost CO2 Capture Project No.: FE0007502 GE Global Research and their project partners are conducting research on the use of a novel silicone solvent to capture CO2 with a continuous bench-scale system. The project will utilize both computational and experimental methods. Previously measured experimental data from a continuous laboratory-scale CO2 capture system will be used to design this bench-scale system. Data from the bench-scale system, such as kinetics and mass transfer information, will be used to determine scale-up effects and needed design parameters to develop a scale-up strategy, update cost of electricity (COE) calculations and perform a technical and economic feasibility study. A manufacturing plan for the aminosilicone solvent and a price model will be used for optimization. The final objective of the program is to demonstrate, at the bench-scale, a process that achieves 90 percent CO2 capture efficiency with less than a 35 percent increase in the COE. Development of this scalable bench-scale process combined with a rigorous process model and thorough manufacturability analysis for the solvent, will enable a practical technology path to later development at larger scales and commercialization. The technology will eventually be retrofittable to coal-based power plants.

232

Low cost stable air electrode material for high temperature solid oxide electrolyte electrochemical cells  

DOE Patents (OSTI)

A low cost, lanthanide-substituted, dimensionally and thermally stable, gas permeable, electrically conductive, porous ceramic air electrode composition of lanthanide-substituted doped lanthanum manganite is provided which is used as the cathode in high temperature, solid oxide electrolyte fuel cells and generators. The air electrode composition of this invention has a much lower fabrication cost as a result of using a lower cost lanthanide mixture, either a natural mixture or an unfinished lanthanide concentrate obtained from a natural mixture subjected to incomplete purification, as the raw material in place of part or all of the higher cost individual lanthanum. The mixed lanthanide primarily contains a mixture of at least La, Ce, Pr, and Nd, or at least La, Ce, Pr, Nd and Sm in its lanthanide content, but can also include minor amounts of other lanthanides and trace impurities. The use of lanthanides in place of some or all of the lanthanum also increases the dimensional stability of the air electrode. This low cost air electrode can be fabricated as a cathode for use in high temperature, solid oxide fuel cells and generators. 4 figs.

Kuo, L.J.H.; Singh, P.; Ruka, R.J.; Vasilow, T.R.; Bratton, R.J.

1997-11-11T23:59:59.000Z

233

Low cost stable air electrode material for high temperature solid oxide electrolyte electrochemical cells  

DOE Patents (OSTI)

A low cost, lanthanide-substituted, dimensionally and thermally stable, gas permeable, electrically conductive, porous ceramic air electrode composition of lanthanide-substituted doped lanthanum manganite is provided which is used as the cathode in high temperature, solid oxide electrolyte fuel cells and generators. The air electrode composition of this invention has a much lower fabrication cost as a result of using a lower cost lanthanide mixture, either a natural mixture or an unfinished lanthanide concentrate obtained from a natural mixture subjected to incomplete purification, as the raw material in place of part or all of the higher cost individual lanthanum. The mixed lanthanide primarily contains a mixture of at least La, Ce, Pr, and Nd, or at least La, Ce, Pr, Nd and Sm in its lanthanide content, but can also include minor amounts of other lanthanides and trace impurities. The use of lanthanides in place of some or all of the lanthanum also increases the dimensional stability of the air electrode. This low cost air electrode can be fabricated as a cathode for use in high temperature, solid oxide fuel cells and generators.

Kuo, Lewis J. H. (Monroeville, PA); Singh, Prabhakar (Export, PA); Ruka, Roswell J. (Churchill Boro, PA); Vasilow, Theodore R. (Penn Township, PA); Bratton, Raymond J. (Delmont, PA)

1997-01-01T23:59:59.000Z

234

Effective, low-cost HVAC controls upgrade in a small bank building  

Science Conference Proceedings (OSTI)

This report summarizes the measured results from a field study of the performance of a low-cost controls retrofit in a small bank building in Knoxville, TN. The retrofit consisted of a simple upgrade of heating and cooling system controls and new operating strategies. The project was undertaken to better understand how commercial energy use measurement studies should be performed and to demonstrate the effectiveness of a low-cost controls retrofit in a small commercial building. This report describes the details of the project, including building and building system characteristics, the HVAC control changes made, energy end use patterns, and the heating and cooling energy savings achieved. An improved control strategy involving thermostat setback/setup and on/off control was devised around a single replacement programmable thermostat. The strategy allowed thermostat setback/setup control of the primary HVAC system in the building and provided on/off (time-of-day) control for the two secondary systems. The energy efficiency improvements provided a 33% reduction in heating and a 21% reduction in cooling energy consumptions. Simple payback for the retrofit, including installation cost, was under 1 year. In addition to reducing the energy needs of the building, the replacement electronic thermostat provided improved interior comfort. 9 refs., 12 figs., 3 tabs.

Sharp, T.R.; MacDonald, J.M.

1990-01-01T23:59:59.000Z

235

Production of low-cost hydrogen. Final report, September 1989--August 1993  

DOE Green Energy (OSTI)

Significant technical progress has been made over the last decade to develop efficient processes for upgrading coal resources to distillable hydrocarbons which may be used to displace petroleum-derived fuels. While several different direct coal liquefaction routes are under investigation, each of them have in common the need for large quantities of hydrogen to convert the aromatic coal matrix to liquid products in the normal distillation range, and for hydrotreating to improve liquid product quality. In fact, it has been estimated that the production, recovery, and efficient use of hydrogen accounts for over 50 percent of the capital cost of the liquefaction facility. For this reason, improved methods for producing low-cost hydrogen are essential to the operating economics of the liquefaction process. This Final Report provides an assessment of the application of the MTCI indirect gasification technology for the production of low-cost hydrogen from coal feedstocks. The MTCI gasification technology is unique in that it overcomes many of the problems and issues associated with direct and other indirectly heated coal gasification systems. Although the MTCI technology can be utilized for producing hydrogen from almost any carbonaceous feedstock (fossil, biomass and waste), this report presents the results of an experimental program sponsored by the Department of Energy, Morgantown Energy Research Center, to demonstrate the production of hydrogen from coal, mild gasification chars, and liquefaction bottoms.

Not Available

1993-06-01T23:59:59.000Z

236

Proceedings of 7th Pacific Rim Bio-based Composite Symposium. Nanjing, China. October Mechanical Properties and Decay Resistance of Wood-Polymer  

E-Print Network (OSTI)

1 Proceedings of 7th Pacific Rim Bio-based Composite Symposium. Nanjing, China. October 31-Nov. 2 Industry, Chinese Academy of Forestry, Beijing, 100091, China.xfduan@caf.ac.cn 2 Postdoctoral Research Associate, Louisiana Forest Products Development Center, School of Renewable Natural Resources, Louisiana

237

Ion Torren Semiconductor Sequencing Allows Rapid, Low Cost Sequencing of the Human Exome ( 7th Annual SFAF Meeting, 2012)  

Science Conference Proceedings (OSTI)

David Jenkins on "Ion Torrent semiconductor sequencing allows rapid, low-cost sequencing of the human exome" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

Jenkins, David [EdgeBio

2012-06-01T23:59:59.000Z

238

Low cost manufacturing of light trapping features on multi-crystalline silicon solar cells : jet etching method and cost analysis  

E-Print Network (OSTI)

An experimental study was conducted in order to determine low cost methods to improve the light trapping ability of multi-crystalline solar cells. We focused our work on improving current wet etching methods to achieve the ...

Berrada Sounni, Amine

2010-01-01T23:59:59.000Z

239

Design, fabrication, and characterization of a low-cost flexural bearing based 3D printing tool head  

E-Print Network (OSTI)

This thesis discusses the design, characterization and optimization of a low-cost additive rapid-prototyping tool head for a technology known as Fused Filament Fabrication for use in an educational curriculum. Building a ...

Ramirez, Aaron Eduardo

2010-01-01T23:59:59.000Z

240

Low-cost carriers in Japan : challenges and paths to success - using a corporate simulation model for empirical analysis  

E-Print Network (OSTI)

This paper analyzes the causes behind the sluggishness of new airlines, low cost carriers (LCCs), in Japan. The object is to identify and to recommend innovative policy changes and ideas for the industry, by analyzing the ...

Shiotani, Sayaka

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

NETL: News Release - Four Industry Teams Begin Quest for Low-Cost,  

NLE Websites -- All DOE Office Websites (Extended Search)

August 8, 2001 August 8, 2001 Four Industry Teams Begin Quest for Low-Cost, Breakthrough Fuel Cell Could Broaden Market Acceptance of "Cutting Edge" Technology Cited in President's Climate Change Policy PITTSBURGH, PA - Four new government-industry projects have been selected as the vanguards of a $500 million, 10-year effort to produce breakthrough fuel cells that will shatter current cost barriers and move the advanced, low-polluting technology into mainstream energy markets. - Technician Examining Planar Fuel Cell Assembly Future fuel cells could be mass- produced from flat, ceramic plates. This configuration is called a "planar" fuel cell. Secretary of Energy Spencer Abraham today announced that the U.S. Department of Energy has selected proposals from Honeywell, Inc., Torrence,

242

Low-Cost Substrates for High-Performance Nanorod Array LEDs  

SciTech Connect

The completed project, entitled ??Low-Cost Substrates for High-Performance Nanorod LEDs,? targeted the goal of a phosphor-free nanorod-based white LED with IQE > 50% across the spectrum from 450 nm to 600 nm on metallized silicon substrates. The principal achievements of this project included: ? Demonstration of (In,Ga)N nanopyramid heterostructures by a conventional OMVPE process. ? Verification of complete filtering of threading dislocations to yield dislocation-free pyramidal heterostructures. ? Demonstration of electroluminescence with a peak wavelength of ~600 nm from an (In,Ga)N nanopyramid array LED. ? Development of a reflective ZrN/AlN buffer layer for epitaxial growth of GaN films and GaN nanopyramid arrays on (111)Si.

Sands, Timothy; Stach, Eric; Garcia, Edwin

2009-04-30T23:59:59.000Z

243

A simple, low-cost, data logging pendulum built from a computer mouse  

SciTech Connect

Lessons and homework problems involving a pendulum are often a big part of introductory physics classes and laboratory courses from high school to undergraduate levels. Although laboratory equipment for pendulum experiments is commercially available, it is often expensive and may not be affordable for teachers on fixed budgets, particularly in developing countries. We present a low-cost, easy-to-build rotary sensor pendulum using the existing hardware in a ball-type computer mouse. We demonstrate how this apparatus may be used to measure both the frequency and coefficient of damping of a simple physical pendulum. This easily constructed laboratory equipment makes it possible for all students to have hands-on experience with one of the most important simple physical systems.

Gintautas, Vadas [Los Alamos National Laboratory; Hubler, Alfred [UIUC

2009-01-01T23:59:59.000Z

244

Design Strategies and Preliminary Prototype for a Low-Cost Arsenic Removal System for Rural Bangladesh  

SciTech Connect

Researchers have invented a material called ARUBA -- Arsenic Removal Using Bottom Ash -- that effectively and affordably removes arsenic from Bangladesh groundwater. Through analysis of studies across a range of disciplines, observations, and informal interviews conducted over three trips to Bangladesh, we have applied mechanical engineering design methodology to develop eight key design strategies, which were used in the development of a low-cost, community-scale water treatment system that uses ARUBA to removearsenic from drinking water. We have constructed, tested, and analysed a scale version of the system. Experiments have shown that the system is capable of reducing high levels of arsenic (nearly 600 ppb) to below the Bangladesh standard of 50 ppb, while remaining affordable to people living on less than US$2/day. The system could be sustainably implemented as a public-private partnership in rural Bangladesh.

Mathieu, Johanna L.; Gadgil, Ashok J.; Kowolik, Kristin; Qazi, Shefah; Agogino, Alice M.

2009-09-14T23:59:59.000Z

245

Flat-plate solar collectors utilizing polymeric film for high performance and very low cost  

SciTech Connect

Polymeric films are used in the construction of the absorber and window portions of a flat plate solar collector. The absorber heat exchanger consists of a channeled liquid envelope constructed using a polymeric film and metal foil laminate. In addition, the composite films and light frame monocoque construction contribute to very light weight and low cost. The use of high-performance polymers permits low-loss designs with high thermal performance. The construction concepts are consistent with high speed mass production and installation with manufacturing cost projections of $15/m/sup 2/. Tests performed at Brookhaven National Laboratory (BNL) and elsewhere indicate performance potential consistent with applications incorporating solar absorption air conditioning.

Wilhelm, W.G.

1981-01-01T23:59:59.000Z

246

Advanced gas turbines: The choice for low-cost, environmentally superior electric power generation  

SciTech Connect

In July 1993, the US Department of Energy (DOE) initiated an ambitious 8-year program to advance state-of-the-art gas turbine technology for land-based electric power generation. The program, known as the Advanced Turbine System (ATS) Program, is a joint government/industry program with the objective to demonstrate advanced industrial and utility gas turbine systems by the year 2000. The goals of the ATS Program are to develop gas turbine systems capable of providing low-cost electric power, while maintaining environmental superiority over competing power generation options. A progress report on the ATS Program pertaining to program status at DOE will be presented and reviewed in this paper. The technical challenges, advanced critical technology requirements, and systems designs meeting the goals of the program will be described and discussed.

Zeh, C.M.

1996-08-01T23:59:59.000Z

247

Evaluation of low cost residual gas analyzers for ultrahigh vacuum applications  

DOE Green Energy (OSTI)

In recent years several low cost computer controlled residual gas analyzers (RGAs) have been introduced into the market place. It would be very useful to know the performance characteristics of these RGAs in order to make an informed selection for UHV applications. The UHV applications include extreme sensitivity helium leak detection and monitoring of the residual gas spectra in UHV systems. In this article, the sensitivity and linearity data for nitrogen, hydrogen, and helium are presented in the pressure range 10{sup {minus}8}---10{sup {minus}1} Pa. Further, the relationships between focus voltage and ion currents, relative sensitivity, and fragmentation factor are also included. A direct comparison method is used in obtaining this data. Spinning rotor and extractor gauges are the transfer standard gauges used in Jefferson Lab's vacuum calibration facility, with which all the reported measurements here were carried out.

M. Rao; D. Dong

1996-10-01T23:59:59.000Z

248

Thermal Engineering of Lignin for Low-cost Production of Carbon Fiber  

Science Conference Proceedings (OSTI)

Lignin, a sustainable, renewable resource material, is being evaluated for the low cost production of carbon fiber for automotive and other applications. We previously reported the successful production of carbon fiber from a solvent extracted lignin [1] and from other lignins [2]. However, it was found that the lignin fiber, produced by the melt spinning of the solvent extracted lignin, was difficult to stabilize (i.e., render infusible) and thus carbonize. The long stabilization time, due to the fiber s low Tg, led to the conclusion that thermal engineering of a lignin feedstock could ultimately raise the Tg of the lignin and thereby of the spun fiber. This would permit a higher temperature of stabilization, which would reduce stabilization time as well as overall processing times. The thermally-engineered lignins were evaluated in terms of their rheological properties, melt spinning ability, morphology, stabilization and carbonization properties, and ultimately mechanical properties of the carbon fibers obtained.

Baker, Darren A [ORNL; Baker, Frederick S [ORNL; Gallego, Nidia C [ORNL

2009-01-01T23:59:59.000Z

249

Low cost alternative of high speed visible light camera for tokamak experiments  

SciTech Connect

We present design, analysis, and performance evaluation of a new, low cost and high speed visible-light camera diagnostic system for tokamak experiments. The system is based on the camera Casio EX-F1, with the overall price of approximately a thousand USD. The achieved temporal resolution is up to 40 kHz. This new diagnostic was successfully implemented and tested at the university tokamak GOLEM (R = 0.4 m, a = 0.085 m, B{sub T} < 0.5 T, I{sub p} < 4 kA). One possible application of this new diagnostic at GOLEM is discussed in detail. This application is tomographic reconstruction for estimation of plasma position and emissivity.

Odstrcil, T.; Grover, O.; Svoboda, V. [Czech Technical University in Prague, FNSPE, Brehova 7, CZ-115 19 Praha 1 (Czech Republic); Odstrcil, M.; Duran, I.; Mlynar, J. [Czech Technical University in Prague, FNSPE, Brehova 7, CZ-115 19 Praha 1 (Czech Republic); Institute of Plasma Physics AS CR, v.v.i., Association Euratom-IPP.CR, Za Slovankou 3, CZ-182 00 Praha 8 (Czech Republic)

2012-10-15T23:59:59.000Z

250

Advanced Flywheel Composite Rotors: Low-Cost, High-Energy Density Flywheel Storage Grid Demonstration  

SciTech Connect

GRIDS Project: Boeing is developing a new material for use in the rotor of a low-cost, high-energy flywheel storage technology. Flywheels store energy by increasing the speed of an internal rotor slowing the rotor releases the energy back to the grid when needed. The faster the rotor spins, the more energy it can store. Boeings new material could drastically improve the energy stored in the rotor. The team will work to improve the storage capacity of their flywheels and increase the duration over which they store energy. The ultimate goal of this project is to create a flywheel system that can be scaled up for use by electric utility companies and produce power for a full hour at a cost of $100 per kilowatt hour.

None

2010-10-01T23:59:59.000Z

251

State-of-the-art low-cost solar reflector materials  

SciTech Connect

Solar thermal technologies generate power by concentrating sunlight with large mirrors. The National Renewable Energy Laboratory (NREL) is working with industrial partners to develop the optical reflector materials needed for the successful deployment of this technology. The reflector materials must be low in cost and maintain high specular reflectance for extended lifetimes in severe outdoor environments. Currently, the best candidate materials for solar mirrors are silver-coated low-iron glass and silvered polymer films. Polymer reflectors are lighter in weight, offer greater flexibility in system design, and have the potential for lower cost than glass mirrors. In parallel with collaborative activities, several innovative candidate reflector-material constructions were investigated at NREL. The low-cost material requirement necessitates manufacturing compatible with mass-production techniques. Future cooperative efforts with the web-coating industry offers the promise of exciting new alternative materials and the potential for dramatic cost savings in developing advanced solar reflector materials.

Kennedy, C; Jorgensen, G

1994-11-01T23:59:59.000Z

252

Demonstrating Innovative Low-Cost Carbon Fiber for Energy and National Security Applications  

NLE Websites -- All DOE Office Websites (Extended Search)

Innovative Innovative Low-Cost Carbon Fiber for Energy and National Security Applications Front-end creel for processing precursor in tow format In-line melt spinning for precursor development (lignins, polymers) Belt conveyance for processing precursor in web format Multiple flow regimens in oxidation ovens Low-temperature furnace up to 1,000°C High-temperature furnace up to 2,000°C Flexible posttreatment for various resin systems Winding and packaging Carbon fiber is a strong, stiff, lightweight enabling material for improved performance in many applications. However, its use in cost-sensitive, high-volume industrial applications such as automobiles, wind energy, oil and gas, and infrastructure is limited because of today's relatively high price. Current methods for manufacturing carbon fiber

253

Low-Cost Silicon Solar Array Project quarterly report-2, July 1976--September 1976  

DOE Green Energy (OSTI)

The potential for future widespread use of photovoltaic systems for the generation of electric power was the motivation for the establishment, in January 1975, of the Photovoltaic Conversion Program by ERDA's Division of Solar Energy. The Program's activities are planned to develop and to promote the use of photovoltaic systems to such an extent that the private sector will produce and utilize cost-competitive photovoltaic systems. As part of the ERDA Program, the Low-Cost Silicon Solar Array Project (LCSSAP) was established in January 1975. The project objective is to develop the national capability to produce low-cost, long-life photovoltaic arrays at a rate greater than 500 megawatts per year and a price of less than $500 per kilowatt peak by 1986. The array performance objectives include an efficiency greater than 10% and an operating lifetime in excess of 20 years. The approach is to reduce the cost of solar cell arrays by improving solar array manufacturing technology and by increasing solar array production capacity and quantity. Forty-three contracts have been awarded to date, to industrial firms and university and independent laboratories for experimental work, process development and analysis, technology assessment, and the production of solar-array modules. Approximately 42 kW of state-of-the-art modules have been delivered; contracts have been issued and design development has begun for 130 kW of moderately advanced modules. Efforts of the LCSSA Project are organized into an Analysis and Integration Task, four Technology Development Tasks--covering the areas of Silicon Material, Large Area Silicon Sheet, Encapsulation, and Automated Array Assembly--and a Large Scale Procurement Task, an Engineering Task, and an Operations Task. Research findings are discussed, and project planning is outlined.

Not Available

1976-01-01T23:59:59.000Z

254

Low-Cost Silicon Solar Array Project quarterly report-2, July 1976--September 1976  

SciTech Connect

The potential for future widespread use of photovoltaic systems for the generation of electric power was the motivation for the establishment, in January 1975, of the Photovoltaic Conversion Program by ERDA's Division of Solar Energy. The Program's activities are planned to develop and to promote the use of photovoltaic systems to such an extent that the private sector will produce and utilize cost-competitive photovoltaic systems. As part of the ERDA Program, the Low-Cost Silicon Solar Array Project (LCSSAP) was established in January 1975. The project objective is to develop the national capability to produce low-cost, long-life photovoltaic arrays at a rate greater than 500 megawatts per year and a price of less than $500 per kilowatt peak by 1986. The array performance objectives include an efficiency greater than 10% and an operating lifetime in excess of 20 years. The approach is to reduce the cost of solar cell arrays by improving solar array manufacturing technology and by increasing solar array production capacity and quantity. Forty-three contracts have been awarded to date, to industrial firms and university and independent laboratories for experimental work, process development and analysis, technology assessment, and the production of solar-array modules. Approximately 42 kW of state-of-the-art modules have been delivered; contracts have been issued and design development has begun for 130 kW of moderately advanced modules. Efforts of the LCSSA Project are organized into an Analysis and Integration Task, four Technology Development Tasks--covering the areas of Silicon Material, Large Area Silicon Sheet, Encapsulation, and Automated Array Assembly--and a Large Scale Procurement Task, an Engineering Task, and an Operations Task. Research findings are discussed, and project planning is outlined.

1976-01-01T23:59:59.000Z

255

Low-Cost Silicon Solar Array Project. Quarterly report 3, October 1976--December 1976  

SciTech Connect

The potential for future widespread use of photovoltaic systems for the generation of electric power was the motivation for the establishment, in January 1975, of the Photovoltaic Conversion Program by ERDA's Division of Solar Energy. The Program's activities are planned to develop and to promote the use of photovoltaic systems to such an extent that the private sector will produce and utilize cost-competitive photovoltaic systems. As part of the ERDA Program, the Low-Cost Silicon Solar Array Project (LSSA) was established in January 1975. The activities and progress of the LSSA Project during the months of October, November, and December 1976 are described. The Project objective is to develop the national capability to produce low-cost, long-life photovoltaic arrays at a rate greater than 500 megawatts per year and a price of less than $500 per kilowatt peak by 1986. The array performance goals include an efficiency greater than 10% and an operating lifetime in excess of 20 years. The approach is to reduce the cost of solar cell arrays by improving solar array manufacturing technology and by increasing solar array production capacity and quantity. Forty-seven contracts have been awarded to date, to industrial firms and university and independent laboratories for experimental work, process development and analysis, technology assessment, and the production of solar-array modules. Approximately 58 kW of state-of-the-art modules have been delivered; design development is under way for a second block of moderately advanced modules, and planning for subsequent module procurements has begun.

1976-01-01T23:59:59.000Z

256

Low-Cost Silicon Solar Array Project. Quarterly report 3, October 1976--December 1976  

DOE Green Energy (OSTI)

The potential for future widespread use of photovoltaic systems for the generation of electric power was the motivation for the establishment, in January 1975, of the Photovoltaic Conversion Program by ERDA's Division of Solar Energy. The Program's activities are planned to develop and to promote the use of photovoltaic systems to such an extent that the private sector will produce and utilize cost-competitive photovoltaic systems. As part of the ERDA Program, the Low-Cost Silicon Solar Array Project (LSSA) was established in January 1975. The activities and progress of the LSSA Project during the months of October, November, and December 1976 are described. The Project objective is to develop the national capability to produce low-cost, long-life photovoltaic arrays at a rate greater than 500 megawatts per year and a price of less than $500 per kilowatt peak by 1986. The array performance goals include an efficiency greater than 10% and an operating lifetime in excess of 20 years. The approach is to reduce the cost of solar cell arrays by improving solar array manufacturing technology and by increasing solar array production capacity and quantity. Forty-seven contracts have been awarded to date, to industrial firms and university and independent laboratories for experimental work, process development and analysis, technology assessment, and the production of solar-array modules. Approximately 58 kW of state-of-the-art modules have been delivered; design development is under way for a second block of moderately advanced modules, and planning for subsequent module procurements has begun.

Not Available

1976-01-01T23:59:59.000Z

257

Near-Net Shape Fabrication Using Low-Cost Titanium Alloy Powders  

SciTech Connect

The use of titanium in commercial aircraft production has risen steadily over the last half century. The aerospace industry currently accounts for 58% of the domestic titanium market. The Kroll process, which has been used for over 50 years to produce titanium metal from its mineral form, consumes large quantities of energy. And, methods used to convert the titanium sponge output of the Kroll process into useful mill products also require significant energy resources. These traditional approaches result in product forms that are very expensive, have long lead times of up to a year or more, and require costly operations to fabricate finished parts. Given the increasing role of titanium in commercial aircraft, new titanium technologies are needed to create a more sustainable manufacturing strategy that consumes less energy, requires less material, and significantly reduces material and fabrication costs. A number of emerging processes are under development which could lead to a breakthrough in extraction technology. Several of these processes produce titanium alloy powder as a product. The availability of low-cost titanium powders may in turn enable a more efficient approach to the manufacture of titanium components using powder metallurgical processing. The objective of this project was to define energy-efficient strategies for manufacturing large-scale titanium structures using these low-cost powders as the starting material. Strategies include approaches to powder consolidation to achieve fully dense mill products, and joining technologies such as friction and laser welding to combine those mill products into near net shape (NNS) preforms for machining. The near net shape approach reduces material and machining requirements providing for improved affordability of titanium structures. Energy and cost modeling was used to define those approaches that offer the largest energy savings together with the economic benefits needed to drive implementation. Technical feasibility studies were performed to identify the most viable approaches to NNS preform fabrication using basic powder metallurgy mill product forms as the building blocks and advanced joining techniques including fusion and solid state joining to assemble these building blocks into efficient machining performs.

Dr. David M. Bowden; Dr. William H. Peter

2012-03-31T23:59:59.000Z

258

Enery Efficient Press and Sinter of Titanium Powder for Low-Cost Components in Vehicle Applications  

SciTech Connect

This is the final technical report for the Department of Energy NETL project NT01931 Energy Efficient Press and Sinter of Titanium Powder for Low-Cost Components in Vehicle Applications. Titanium has been identified as one of the key materials with the required strength that can reduce the weight of automotive components and thereby reduce fuel consumption. Working with newly developed sources of titanium powder, Webster-Hoff will develop the processing technology to manufacture low cost vehicle components using the single press/single sinter techniques developed for iron based powder metallurgy today. Working with an automotive or truck manufacturer, Webster-Hoff will demonstrate the feasibility of manufacturing a press and sinter titanium component for a vehicle application. The project objective is two-fold, to develop the technology for manufacturing press and sinter titanium components, and to demonstrate the feasibility of producing a titanium component for a vehicle application. The lowest cost method for converting metal powder into a net shape part is the Powder Metallurgy Press and Sinter Process. The method involves compaction of the metal powder in a tool (usually a die and punches, upper and lower) at a high pressure (up to 60 TSI or 827 MPa) to form a green compact with the net shape of the final component. The powder in the green compact is held together by the compression bonds between the powder particles. The sinter process then converts the green compact to a metallurgically bonded net shape part through the process of solid state diffusion. The goal of this project is to expand the understanding and application of press and sinter technology to Titanium Powder applications, developing techniques to manufacture net shape Titanium components via the press and sinter process. In addition, working with a vehicle manufacturer, demonstrate the feasibility of producing a titanium component for a vehicle. This is not a research program, but rather a project to develop a process for press and sinter of net shape Titanium components. All of these project objectives have been successfully completed.

Thomas Zwitter; Phillip Nash; Xiaoyan Xu; Chadwick Johnson

2011-03-31T23:59:59.000Z

259

CX-006130: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CX-006130: Categorical Exclusion Determination Recovery Act: Development of Low-Cost Bio-Based Phase Change Material CX(s) Applied: A11, B2.2, B3.6, B5.1 Date: 06212011...

260

Low Cost Solar Array Project. Feasibility of the silane process for producing semiconductor-grade silicon. Final report, October 1975-March 1979  

DOE Green Energy (OSTI)

The commercial production of low-cost semiconductor-grade silicon is an essential requirement of the JPL/DOE (Department of Energy) Low-Cost Solar Array (LSA) Project. A 1000-metric-ton-per-year commercial facility using the Union Carbide Silane Process will produce molten silicon for an estimated price of $7.56/kg (1975 dollars, private financing), meeting the DOE goal of less than $10/kg. Conclusions and technology status are reported for both contract phases, which had the following objectives: (1) establish the feasibility of Union Carbide's Silane Process for commercial application, and (2) develop an integrated process design for an Experimental Process System Development Unit (EPSDU) and a commercial facility, and estimate the corresponding commercial plant economic performance. To assemble the facility design, the following work was performed: (a) collection of Union Carbide's applicable background technology; (b) design, assembly, and operation of a small integrated silane-producing Process Development Unit (PDU); (c) analysis, testing, and comparison of two high-temperature methods for converting pure silane to silicon metal; and (d) determination of chemical reaction equilibria and kinetics, and vapor-liquid equilibria for chlorosilanes.

Not Available

1979-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Low cost, single crystal-like substrates for practical, high efficiency solar cells  

Science Conference Proceedings (OSTI)

It is well established that high efficiency (20%) solar cells can be routinely fabricated using single crystal photovoltaic (PV) materials with low defect densities. Polycrystalline materials with small grain sizes and no crystallographic texture typically result in reduced efficiences. This has been ascribed primarily to the presence of grain boundaries and their effect on recombination processes. Furthermore, lack of crystallographic texture can result in a large variation in dopant concentrations which critically control the electronic properties of the material. Hence in order to reproducibly fabricate high efficiency solar cells a method which results in near single crystal material is desirable. Bulk single crystal growth of PV materials is cumbersome, expensive and difficult to scale up. We present here a possible route to achieve this if epitaxial growth of photovoltaic materials on rolling-assisted-biaxially textured-substrates (RABiTS) can be achieved. The RABiTS process uses well-established, industrially scaleable, thermomechanical processing to produce a biaxially textured or single-crystal-like metal substrate with large grains (50-100 {mu}m). This is followed by epitaxial growth of suitable buffer layers to yield chemically and structurally compatible surfaces for epitaxial growth of device materials. Using the RABiTS process it should be possible to economically fabricate single-crystal-like substrates of desired sizes. Epitaxial growth of photovoltaic devices on such substrates presents a possible route to obtaining low-cost, high performance solar cells.

Goyal, A.; Specht, E.D.; List, F.A. [and others

1997-09-01T23:59:59.000Z

262

NETL: News Release - Colorado Company Pursues Low-Cost, Low-Impact  

NLE Websites -- All DOE Office Websites (Extended Search)

10, 2007 10, 2007 Colorado Company Pursues Low-Cost, Low-Impact Technology to Develop Nation's Oil Shale Resources DOE-Funded Research Targets America's Largest Potential Source of Oil WASHINGTON, DC - A U.S. Department of Energy-funded project has successfully demonstrated the viability of a new technology that could prove to be the key to unlocking America's largest potential source of oil. If ongoing research continues to confirm the technology's effectiveness, its application offers the potential to dramatically reduce costs and environmental impacts in the extraction of oil from oil shale. America holds more than three-fourths of the world's estimated 2.6 trillion barrels of oil-in-place of oil shale resources. As much as 1.1 trillion barrels of oil equivalent is believed to be recoverable in the richest single deposit - the Green River formation of Colorado, Utah, and Wyoming. That volume is almost 50 percent greater than the combined proved reserves of conventional oil in the entire Middle East.

263

Large scale production task: low cost silicon solar array project. Final technical report  

DOE Green Energy (OSTI)

Several design concepts were evaluated and compared with respect to potential for low cost and automation, protection against weathering, potential for array efficiency as a function of weight and area, potential for design flexibility and exposure to electrical breakdown or leakage to ground. This evaluation program narrowed attention to design concepts involving glass as the primary structural and weather resistant component of the module. The leading specific design structure consisted of the solar cell circuit embedded in polyvinyl butyrate by lamination between a glass front surface and a polyester film rear surface. Preliminary evaluation of this structure in high humidity and thermal cycle was promising, and extensive field experience with similar structures in architectural and automotive applications was favorable. The specific design proposed was comprised of 120 two-inch diameter cells in a series-parallel configuration. The laminate was mounted in an aluminum frame with a neoprene gasket providing the requisite mechanical strength with flexibility. The resulting module size of 15 by 46 inches permits three modules to be neatly fitted into the 46 inch square subarray specified by JPL. The design as modified to accommodate subsequent experience is shown. Performance and environmental test results are presented and discussed.

Not Available

1978-09-01T23:59:59.000Z

264

Low cost/low intensity 50 MeV proton irradiation facility  

SciTech Connect

Protons have been proposed as one of the most useful particles for radiation therapy, but have found limited use due to the cost and scarcity of medium energy proton accelerators. However, the highly successful program on the Harvard Cyclotron has increased interest in expanding the number of treatment facilities. In order to demonstrate that high intensity proton accelerators are not required and to gain experience with treating patients using protons, a low cost and low intensity source of 50 MeV protons was developed at Argonne. Although the beam penetration is limited to 22 mm, the beam is capable of treating a major fraction of the ocular melanoma tumors treated at the Harvard Cyclotron. This beam operates parasitically with the Rapid Cycling Synchrotron at Argonne using a source of 50 MeV H/sup 0/ atoms which are produced by stripping in the gas of the 50 MeV H/sup -/ linear accelerator. A stripping fraction of about 3 to 5 x 10/sup -5/ is observed and yields a 0.4 namp beam of protons. Results on the properties and operation of this parasitic beam are presented. 5 refs., 3 figs.

Kramer, S.L.; Martin, R.L.

1985-01-01T23:59:59.000Z

265

Photovoltaic solar panel resistance to simulated hail. Low-Cost Solar Array Project  

SciTech Connect

As part of the Jet Propulsion Laboratory's Low-Cost Solar Array Project, test methods have been evaluated and procedures developed for testing photovoltaic flat-plate solar cell modules for resistance to impact by hailstones. Testing has included the use of simulated hailstones (frozen ice spheres projected at terminal velocity), steel balls, and other projectile types applied with three loading methods: pneumatic gun, gravity drop, and static loading. Results are presented that compare the advantages and disadvantages of the three test methods. Dropped-steel-ball tests are shown to exhibit little correlation with high-velocity ice-ball tests, whereas statically-loaded steel balls show a somewhat better correlation with ice-ball tests. Results are also presented on the hail impact strength of 16 flat-plate photovoltaic modules. The module designs tested have been shown to be capable of withstanding as large as 1-1/2-inch diameter and not capable of withstanding as small as 1/2-inch diameter simulated hail. The top surface material of the modules has a dominant influence on the hail impact resistance of the modules. In order of increasing impact strength for a given thickness, the top surface materials encountered in the modules tester were: clear silicone rubber, annealed glass, tempered glass, and acrylic sheet. The critical failure mechanism of each module type is explored and means for improving the hail resistance of future modules are described.

Moore, D.; Wilson, A.

1978-10-15T23:59:59.000Z

266

Low cost fabrication of silicon carbide based ceramics and fiber reinforced composites  

SciTech Connect

A low cost processing technique called reaction forming for the fabrication of near-net and complex shaped components of silicon carbide based ceramics and composites is presented. This process consists of the production of a microporous carbon preform and subsequent infiltration with liquid silicon or silicon-refractory metal alloys. The microporous preforms are made by the pyrolysis of a polymerized resin mixture with very good control of pore volume and pore size thereby yielding materials with tailorable microstructure and composition. Mechanical properties (elastic modulus, flexural strength, and fracture toughness) of reaction-formed silicon carbide ceramics are presented. This processing approach is suitable for various kinds of reinforcements such as whiskers, particulates, fibers (tows, weaves, and filaments), and 3-D architectures. This approach has also been used to fabricate continuous silicon carbide fiber reinforced ceramic composites (CFCC`s) with silicon carbide based matrices. Strong and tough composites with tailorable matrix microstructure and composition have been obtained. Microstructure and thermomechanical properties of a silicon carbide (SCS-6) fiber reinforced reaction-formed silicon carbide matrix composites are discussed.

Singh, M.; Levine, S.R.

1995-07-01T23:59:59.000Z

267

Low-cost, low-weight CNG cylinder development. Final report  

DOE Green Energy (OSTI)

This program was established to develop and commercialize new high-strength steel-lined, composite hoop-wrapped compressed natural gas (CNG) cylinders for vehicular applications. As much as 70% of the cost of natural gas vehicles can be related to on-board natural gas storage costs. The cost and weight targets for this program represent significant savings in each characteristic when compared to comparable containers available at the initiation of the program. The program objectives were to optimize specific weight and cost goals, yielding CNG cylinders with dimensions that should, allowing for minor modifications, satisfy several vehicle market segments. The optimization process encompassed material, design, and process improvement. In optimizing the CNG cylinder design, due consideration was given to safety aspects relative to national, international, and vehicle manufacturer cylinder standards and requirements. The report details the design and development effort, encompassing plant modifications, material selection, design issues, tooling development, prototype development, and prototype testing. Extenuating circumstances prevented the immediate commercialization of the cylinder designs, though significant progress was made towards improving the cost and performance of CNG cylinders. A new low-cost fiber was successfully employed while the weight target was met and the cost target was missed by less than seven percent.

Richards, Mark E.; Melford, K.; Wong, J.; Gambone, L.

1999-09-01T23:59:59.000Z

268

Low-cost silicon solar array project. First annual report, January 1975--March 1976  

DOE Green Energy (OSTI)

The Low-Cost Silicon Solar Array Project (LSSA) was established to greatly reduce the price of solar arrays by the improvement of manufacturing technology, by adaptation of mass production techniques, and by helping achievement of user acceptance. The Project's approach includes the development of technology, its transfer by industry to commercial practice, the evaluation of the economics involved, and the stimulation of market growth. The activities and progress of the LSSA Project during its first year are described in this document which covers all Project activities, with primary emphasis on the technical plans and accomplishments. The development of manufacturing technology is now and will continue to be performed principally by industries and universities. To date, 24 contractors are working on new silicon-refinement processes, silicon-sheet-growth techniques, encapsulants, and automated-assembly studies. Nine more contractors have been selected to perform additional technology investigations and their contracts are being negotiated. Additional contracts will be issued in the future as promising ideas appear. (WDM)

Not Available

1976-08-09T23:59:59.000Z

269

Recovery Act: Low-Cost, Highly Lambertian Reflector Composite For Improved LED Fixture Efficiency and Lifetime  

SciTech Connect

The overall objective of the program was to demonstrate a 98% or greater reflective, highly diffuse, low-cost composite material that significantly improves luminaire efficiency, is able to withstand 50,000 hours or greater luminaire operation under expected LED system thermal and environmental operating extremes and meets the cost targets required to be an effective commercial solution for the Solid State Lighting industry. This project met most of the goals defined and contributed to the understanding of high reflectance, white coatings. Research under this program increased the understanding of coatings development using particle size reduction techniques and preparation of coating solutions with a broad range of particle types. The research explored scale-up of coating systems and generated understanding of processing required for high volume manufacturing applications. The work demonstrated how coating formulation and application technique can translate to material durability and LED system lifetime. The research also demonstrated improvements in lighting efficiency to be gained using high reflectance white coatings.

Teather, Eric

2013-02-15T23:59:59.000Z

270

Method for producing low-cost, high volume hydrogen from hydrocarbon sources  

DOE Patents (OSTI)

A method is described for the conversion of naturally-occurring or biomass-derived lower to higher hydrocarbon (C{sub x}H{sub y},where x may vary from 1--3 and y may vary from 4--8) to low-cost, high-volume hydrogen. In one embodiment, methane, the major component of natural gas, is reacted in a single reaction zone of a mixed-conducting ceramic membrane reactor to form hydrogen via simultaneous partial oxidation and water gas shift reactions at temperatures required for thermal excitations of the mixed-conducting membranes. The hydrogen is produced by catalytically reacting the hydrocarbon with oxygen to form synthesis gas (a mixture of carbon monoxide and hydrogen), followed by a water gas shift (WGS) reaction with steam, wherein both reactions occur in a single reaction zone having a multi-functional catalyst or a combination of catalysts. The hydrogen is separated from other reaction products by membrane-assisted transport or by pressure-swing adsorption technique. Membrane-assisted transport may occur via proton transfer or molecular sieving mechanisms.

Bose, Arun C.; Balachandran, Uthamalinga; Kleerfisch, Mark S.; Udovich, Carl A.; Stiegel, Gary J.

1997-12-01T23:59:59.000Z

271

An Exploratory Initiative for Improving Low-Cost Housing in Texas  

E-Print Network (OSTI)

In 1996 the Real Estate Center at Texas A&M University released a report indicating that the population of Texas would double in the next 30 years and that a majority of the 18 million new Texans would be have low to very-low incomes. In order to house that many low income persons, it is apparent that a significant number of affordable housing units must be built in a relatively short time frame. Based on these predictions, our interdisciplinary team made a proposal in the Texas Engineering Experiment Station (TEES) Strategic Initiatives Program to explore technologies related to the production of affordable housing. The purpose of the work is to identify opportunities for research into systems, materials, and processes that might contribute to the development of a low-cost housing industry in Texas that could meet state housing needs and might create export possibilities. The proposal was funded by the Texas Engineering Experiment Station, the Center for Housing and Urban Development, and the College of Architecture Research Fund. This report summarizes the results of the effort.

McKittrick, T. L.; Haberl, J. S.; Graham, C. W.; Claridge, D. E.; Swain, W. B.

2000-01-01T23:59:59.000Z

272

Sensing from the basement: a feasibility study of unobtrusive and low-cost home activity recognition  

E-Print Network (OSTI)

The home deployment of sensor-based systems offers many opportunities, particularly in the area of using sensor-based systems to support aging in place by monitoring an elders activities of daily living. But existing approaches to home activity recognition are typically expensive, difficult to install, or intrude into the living space. This paper considers the feasibility of a new approach that reaches into the home via the existing infrastructure. Specifically, we deploy a small number of low-cost sensors at critical locations in a homes water distribution infrastructure. Based on water usage patterns, we can then infer activities in the home. To examine the feasibility of this approach, we deployed real sensors into a real home for six weeks. Among other findings, we show that a model built on microphone-based sensors that are placed away from systematic noise sources can identify 100 % of clothes washer usage, 95 % of dishwasher usage, 94 % of showers, 88 % of toilet flushes, 73 % of bathroom sink activity lasting ten seconds or longer, and 81 % of kitchen sink activity lasting ten seconds or longer. While there are clear limits to what activities can be detected when analyzing water usage, our new approach represents a sweet spot in the tradeoff between what information is collected at what cost.

James Fogarty

2006-01-01T23:59:59.000Z

273

Photovoltaic solar panel resistance to simulated hail. Low-Cost Solar Array Project  

DOE Green Energy (OSTI)

As part of the Jet Propulsion Laboratory's Low-Cost Solar Array Project, test methods have been evaluated and procedures developed for testing photovoltaic flat-plate solar cell modules for resistance to impact by hailstones. Testing has included the use of simulated hailstones (frozen ice spheres projected at terminal velocity), steel balls, and other projectile types applied with three loading methods: pneumatic gun, gravity drop, and static loading. Results are presented that compare the advantages and disadvantages of the three test methods. Dropped-steel-ball tests are shown to exhibit little correlation with high-velocity ice-ball tests, whereas statically-loaded steel balls show a somewhat better correlation with ice-ball tests. Results are also presented on the hail impact strength of 16 flat-plate photovoltaic modules. The module designs tested have been shown to be capable of withstanding as large as 1-1/2-inch diameter and not capable of withstanding as small as 1/2-inch diameter simulated hail. The top surface material of the modules has a dominant influence on the hail impact resistance of the modules. In order of increasing impact strength for a given thickness, the top surface materials encountered in the modules tester were: clear silicone rubber, annealed glass, tempered glass, and acrylic sheet. The critical failure mechanism of each module type is explored and means for improving the hail resistance of future modules are described.

Moore, D.; Wilson, A.

1978-10-15T23:59:59.000Z

274

Bio-Based Resins  

Science Conference Proceedings (OSTI)

Table 1   Fatty-acid distribution in various plant oils...in various plant oils Fatty acid C:DB (a) Canola Corn Cottonseed Linseed Olive Palm Rapeseed Soybean High oleic (b) Myristic 14:0 0.1 0.1 0.7 0.0 0.0 1.0 0.1 0.1 0.0 Myristoleic 14:1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Palmitic 16:0 4.1 10.9 21.6 5.5 13.7 44.4 3.0 11.0 6.4 Palmitoleic 16:1 0.3...

275

A LOW COST AND HIGH QUALITY SOLID FUEL FROM BIOMASS AND COAL FINES  

SciTech Connect

Use of biomass wastes as fuels in existing boilers would reduce greenhouse gas emissions, SO2 and NOx emissions, while beneficially utilizing wastes. However, the use of biomass has been limited by its low energy content and density, high moisture content, inconsistent configuration and decay characteristics. If biomass is upgraded by conventional methods, the cost of the fuel becomes prohibitive. Altex has identified a process, called the Altex Fuel Pellet (AFP) process, that utilizes a mixture of biomass wastes, including municipal biosolids, and some coal fines, to produce a strong, high energy content, good burning and weather resistant fuel pellet, that is lower in cost than coal. This cost benefit is primarily derived from fees that are collected for accepting municipal biosolids. Besides low cost, the process is also flexible and can incorporate several biomass materials of interest The work reported on herein showed the technical and economic feasibility of the AFP process. Low-cost sawdust wood waste and light fractions of municipal wastes were selected as key biomass wastes to be combined with biosolids and coal fines to produce AFP pellets. The process combines steps of dewatering, pellet extrusion, drying and weatherizing. Prior to pilot-scale tests, bench-scale test equipment was used to produce limited quantities of pellets for characterization. These tests showed which pellet formulations had a high potential. Pilot-scale tests then showed that extremely robust pellets could be produced that have high energy content, good density and adequate weatherability. It was concluded that these pellets could be handled, stored and transported using equipment similar to that used for coal. Tests showed that AFP pellets have a high combustion rate when burned in a stoker type systems. While NOx emissions under stoker type firing conditions was high, a simple air staging approach reduced emissions to below that for coal. In pulverized-fuel-fired tests it was found that the ground pellets could be used as an effective NOx control agent for pulverized-coal-fired systems. NOx emissions reductions up to 63% were recorded, when using AFP as a NOx control agent. In addition to performance benefits, economic analyses showed the good economic benefits of AFP fuel. Using equipment manufacturer inputs, and reasonable values for biomass, biosolids and coal fines costs, it was determined that an AFP plant would have good profitability. For cases where biosolids contents were in the range of 50%, the after tax Internal Rates of Return were in the range of 40% to 50%. These are very attractive returns. Besides the baseline analysis for the various AFP formulations tested at pilot scale, sensitivity analysis showed the impact of important parameters on return. From results, it was clear that returns are excellent for a range of parameters that could be expected in practice. Importantly, these good returns are achieved even without incentives related to the emissions control benefits of biomass.

John T. Kelly; George Miller; Mehdi Namazian

2001-07-01T23:59:59.000Z

276

Ranking low cost sorbents for mercury capture from simulated flue gases  

Science Conference Proceedings (OSTI)

Coal fired utility boilers are the largest anthropogenic source of mercury release to the atmosphere, and mercury abatement legislation is already in place in the USA. The present study aimed to rank low cost mercury sorbents (char and activated carbon from the pyrolysis of scrap tire rubber and two coal fly ashes from UK power plants) against Norit Darco HgTM for mercury retention by using a novel bench-scale reactor. In this scheme, a fixed sorbent bed was tested for mercury capture efficiency from a simulated flue gas stream. Experiments with a gas stream of only mercury and nitrogen showed that while the coal ashes were the most effective in mercury capture, char from the pyrolysis of scrap tire rubber was as effective as the commercial sorbent Norit Darco HgTM. Tests conducted at 150{sup o}C, with a simulated flue gas mix that included N{sub 2}, NO, NO{sub 2}, CO{sub 2}, O{sub 2}, SO{sub 2} and HCl, showed that all the sorbents captured approximately 100% of the mercury in the gas stream. The introduction of NO and NO{sub 2} was found to significantly improve the mercury capture, possibly by reactions between NOx and the mercury. Since the sorbents' efficiency decreased with increasing test temperature, physical sorption could be the initial step in the mercury capture process. As the sorbents were only exposed to 64 ng of mercury in the gas stream, the mercury loadings on the samples were significantly less than their equilibrium capacities. The larger capacities of the activated carbons due to their more microporous structure were therefore not utilized. Although the sorbents have been characterized by BET surface area analysis and XRD analysis, further analysis is needed in order to obtain a more conclusive correlation of how the characteristics of the different sorbents correlate with the observed variations in mercury capture ability. 34 refs., 8 figs., 6 tabs.

H. Revata Seneviratne; Cedric Charpenteau; Anthe George; Marcos Millan; Denis R. Dugwell; Rafael Kandiyoti [Imperial College London, London (United Kingdom). Department of Chemical Engineering

2007-12-15T23:59:59.000Z

277

Final Technical Report - Recovery Act: Organic Coatings as Encapsulants for Low Cost, High Performance PV Modules  

DOE Green Energy (OSTI)

The objective of this project was to evaluate the feasibility of utilizing PPG's commercial organic coatings systems as efficient, modernized encapsulants for low cost, high performance, thin film photovoltaic modules. Our hypothesis was that the combination of an anticorrosive coating with a more traditional barrier topcoat would mitigate many electrochemical processes that are now responsible for the significant portion of photovoltaic (PV) failures, thereby nullifying the extremely high moisture barrier requirements of currently used encapsulation technology. Nine commercially available metal primer coatings and six commercially available top coatings were selected for screening. Twenty-one different primer/top coat combinations were evaluated. The primer coatings were shown to be the major contributor to corrosion inhibition, adhesion, and barrier properties. Two primer coatings and one top coating were downselected for testing on specially-fabricated test modules. The coated test modules passed initial current leakage and insulation testing. Damp Heat testing of control modules showed visible corrosion to the bus bar metal, whereas the coated modules showed none. One of the primer/top coat combinations retained solar power performance after Damp Heat testing despite showing some delamination at the EVA/solar cell interface. Thermal Cycling and Humidity Freeze testing resulted in only one test module retaining its power performance. Failure modes depended on the particular primer/top coating combination used. Overall, this study demonstrated that a relatively thin primer/top coating has the potential to replace the potting film and backsheet in crystalline silicon-based photovoltaic modules. Positive signals were received from commercially available coatings developed for applications having performance requirements different from those required for photovoltaic modules. It is likely that future work to redesign and customize these coatings would result in a coating system meeting the requirements for photovoltaic module encapsulation.

Stuart Hellring; Jiping Shao; James Poole

2011-12-05T23:59:59.000Z

278

A Low Cost, High Capacity Regenerable Sorbent for Pre-combustion CO{sub 2} Capture  

SciTech Connect

The overall objective of the proposed research is to develop a low cost, high capacity CO{sub 2} sorbent and demonstrate its technical and economic viability for pre-combustion CO{sub 2} capture. The specific objectives supporting our research plan were to optimize the chemical structure and physical properties of the sorbent, scale-up its production using high throughput manufacturing equipment and bulk raw materials and then evaluate its performance, first in bench-scale experiments and then in slipstream tests using actual coal-derived synthesis gas. One of the objectives of the laboratory-scale evaluations was to demonstrate the life and durability of the sorbent for over 10,000 cycles and to assess the impact of contaminants (such as sulfur) on its performance. In the field tests, our objective was to demonstrate the operation of the sorbent using actual coal-derived synthesis gas streams generated by air-blown and oxygen-blown commercial and pilot-scale coal gasifiers (the CO{sub 2} partial pressure in these gas streams is significantly different, which directly impacts the operating conditions hence the performance of the sorbent). To support the field demonstration work, TDA collaborated with Phillips 66 and Southern Company to carry out two separate field tests using actual coal-derived synthesis gas at the Wabash River IGCC Power Plant in Terre Haute, IN and the National Carbon Capture Center (NCCC) in Wilsonville, AL. In collaboration with the University of California, Irvine (UCI), a detailed engineering and economic analysis for the new CO{sub 2} capture system was also proposed to be carried out using Aspen PlusTM simulation software, and estimate its effect on the plant efficiency.

Alptekin, Gokhan

2012-09-30T23:59:59.000Z

279

Investigation of low-cost LNG vehicle fuel tank concepts. Final report  

DOE Green Energy (OSTI)

The objective of this study was to investigate development of a low-cost liquid natural gas (LNG) vehicle fuel storage tank with low fuel boil-off, low tank pressure, and high safety margin. One of the largest contributors to the cost of converting a vehicle to LNG is the cost of the LNG fuel tank. To minimize heat leak from the surroundings into the low-temperature fuel, these tanks are designed as cryogenic dewars with double walls separated by an evacuated insulation space containing multi-layer insulation. The cost of these fuel tanks is driven by this double-walled construction, both in terms of materials and labor. The primary focus of the analysis was to try to devise a fuel tank concept that would allow for the elimination of the double-wall requirement. Results of this study have validated the benefit of vacuum/MLI insulation for LNG fuel tanks and the difficulty in identifying viable alternatives. The thickness of a non-vacuum insulation layer would have to be unreasonably large to achieve an acceptable non-venting hold time. Reasonable hold times could be achieved by using an auxiliary tank to accept boil-off vapor from a non-vacuum insulated primary tank, if the vapor in the auxiliary tank can be stored at high pressure. The primary focus of the analysis was to try to devise a fuel tank concept that allowed for the elimination of the double-wall requirement. Thermodynamic relations were developed for analyzing the fuel tank transient response to heat transfer, venting of vapor, and out-flow of either vapor or liquid. One of the major costs associated with conversion of a vehicle to LNG fuel is the cost of the LNG fuel tank. The cost of these tanks is driven by the cryogenic nature of the fuel and by the fundamental design requirements of long non-venting hold times and low storage pressure.

O`Brien, J.E.; Siahpush, A. [Lockheed Martin Idaho Technologies Co., Idaho Falls, ID (United States). Idaho National Engineering and Environmental Lab.

1998-02-01T23:59:59.000Z

280

A novel low-cost, limited-resource approach to autonomous multi-robot exploration and mapping  

Science Conference Proceedings (OSTI)

Mobile robots are becoming more heavily used in environments where human involvement is limited, impossible, or dangerous. These robots perform some of the more laborious human tasks on Earth and throughout the solar system, simultaneously saving resources ... Keywords: Distributed robots, Low-cost SLAM, Mobile robots, Multi-robot team, Planetary exploration

Christopher M. Gifford; Russell Webb; James Bley; Daniel Leung; Mark Calnon; Joseph Makarewicz; Bryan Banz; Arvin Agah

2010-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Low-cost, highly efficient, and tunable ultrafast laser technology based on directly diode-pumped Cr:Colquiriites  

E-Print Network (OSTI)

This doctoral project aims to develop robust, ultra low-cost ($5,000-20,000), highly-efficient, and tunable femtosecond laser technology based on diode-pumped Cr:Colquiriite gain media (Cr:LiCAF, Cr3+:LiSAF and Cr:LiSGaF). ...

Demirbas, Umit

2010-01-01T23:59:59.000Z

282

A fast-developing and low-cost characterization and test environment for a double axis resonating micromirror  

Science Conference Proceedings (OSTI)

Testing and characterization of micro-electro-mechanical systems (MEMS) and micro-opto-electro-mechanical systems (MOEMS) can be very challenging due to the multi-domain nature of these devices. Nowadays high volume, high-cost, and accurate measuring ... Keywords: Fast-developing, Low-cost characterization, MOEMS, Microelectromechanical systems (MEMS), Micromirror, Testing

Francesco Battini; Emilio Volpi; Eleonora Marchetti; Tommaso Cecchini; Francesco Sechi; Luca Fanucci; Ulrich Hofmann

2010-11-01T23:59:59.000Z

283

Development of a Low-Cost, Durable Membrane and MEA for Stationary and Mobile Fuel Cell Applications  

DOE Green Energy (OSTI)

The development of low cost, durable membranes and membranes electrode assemblies (MEAs) remain a critical challenge for the successful introduction of fuel cells into mass markets. It was the goal of the team lead by Arkema, Inc. (formerly Atofina, Inc.) to address these shortages. Thus, this project addresses the following technical barriers from the Fuel Cells section of the Hydrogen Fuel Cells and Infrastructure Technologies Program Multi-Year Research, Development and Demonstration Plan: (A) Durability (B) Cost Arkemas approach consisted in using blends of polyvinylidenefluoride (PVDF) and proprietary sulfonated polyelectrolytes. The strength and originality of Arkemas approach lies in the decoupling of ion conductivity from the other requirements. Kynar (Arkema trade name for PVDF) provides an exceptional combination of properties that make it ideally suited for a membrane matrix. In a first phase, Arkema demonstrated the feasibility of the concept with the M31 membrane generation. After MEA optimization, it was shown that the beginning-of-life (BOL) performance of M31 MEAs was essentially on a par with that of PFSA MEAs at 60C under fully humidified conditions. On the other hand, long-term durability studies showed a high decay rate of 45V/h over a 2100 hr. test. Arkema then designed several families of polyelectrolyte candidates, which in principle could not undergo the same failure mechanisms. A new membrane candidate was developed: M41. It offered the same generally good mechanical, ex-situ conductivity and gas barrier properties as M31. In addition, ex-situ accelerated testing suggested a several orders of magnitude improvement in chemical stability. M41 based MEAs showed comparable BOL performance with that of PFSA (80C, 100% RH). M41 MEAs were further shown to be able to withstand several hours temperature excursions at 120C without apparent damage. Accelerated studies were carried out using the DOE and/or US Fuel Cell Council protocols. M41 MEAs shown sizeable advantages over PFSA MEAs in the Open Circuit Voltage Hold test, Relative Humidity Cycling test and the Voltage Cycling test. The main known limitation of the M41 family is its ability to function well at low RH.

Michel Foure, Scott Gaboury, Jim Goldbach, David Mountz and Jung Yi (no longer with company)

2008-01-31T23:59:59.000Z

284

A Low Cost and High Efficient Facility for Removal of $\\SO_{2}$ and $\\NO_{x}$ in the Flue Gas from Coal Fire Power Plant  

E-Print Network (OSTI)

A Low Cost and High Efficient Facility for Removal of $\\SO_{2}$ and $\\NO_{x}$ in the Flue Gas from Coal Fire Power Plant

Pei, Y J; Dong, X; Feng, G Y; Fu, S; Gao, H; Hong, Y; Li, G; Li, Y X; Shang, L; Sheng, L S; Tian, Y C; Wang, X Q; Wang, Y; Wei, W; Zhang, Y W; Zhou, H J

2001-01-01T23:59:59.000Z

285

MATERIALS DEGRADATION ANALYSIS AND DEVELOPMENT TO ENABLE ULTRA LOW COST, WEB-PROCESSED WHITE P-OLED FOR SSL  

SciTech Connect

Progress over Phase II of DE-FG02-07ER86293 'Materials Degradation Analysis and Development to Enable Ultra Low Cost, Web-Processed White P-OLED for SSL' was initially rapid in terms of device performance improvements. We exceeded our device luminance lifetime goals for printed flexible white OLEDs as laid out in our project proposal. Our Phase II performance target was to demonstrate >1500 hours luminance lifetime at 100 Cd/m2 from a printed flexible device. We now have R&D devices well in excess of 8000 hrs lifetime at 100 Cd/m2, tested in air. We also were able to produce devices which met the voltage target of >1500 hours below 15V operation. After completing the initial performance milestones, we went on to focus on color-related degradation issues which were cited as important to commercialization of the technology by our manufacturing partners. We also put additional focus on cathode work as the active material development that occurred over the STTR time period required an adaptation of the cathode from the original cathode formulations which were developed based on previous generation active layer materials. We were able to improve compatibility of the cathode with some of the newer generation active layer materials and improve device yield and voltage behavior. An additional objective of the initial Phase II was to further develop the underlying manufacturing technology and real-life product specifications. This is a key requirement that must be met to ensure eventual commercialization of this DOE-funded technology. The link between commercial investment for full commercialization and R&D efforts in OLED solid State Lighting is often a large one. Add-Vision's lower cost, printed OLED manufacturing approach is an attraction, but close engagement with manufacturing partners and addressing customer specifications is a very important link. Manufacturing technology encompasses development of moisture reduction encapsulation technology, improved cost performance, and reductions in operating voltage through thinner and higher uniformity active device layers. We have now installed a pilot encapsulation system at AVI for controlled, high throughput lamination encapsulation of flexible OLEDs in a novel process. Along with this, we have developed, with our materials supply partners, adhesives, barrier films and other encapsulation materials and we are showing total air product lifetimes in the 2-4 years range from a process consistent with our throughput goals of {approx}1M device per month ({approx}30,000 sq. ft. of processed OLEDs). Within the last year of the project, we have been working to introduce the manufacturing improvements made in our LEP deposition and annealing process to our commercial partners. Based on the success of this, a pilot scale-up program was begun. During this process, Add-Vision was acquired by a strategic partner, in no small part, because of the promise of future success of the technology as evidenced by our commercial partners pilot scale-up plans. Overall, the performance, manufacturing and product work in this project has been successful. Additional analysis and device work at LBL has also shown a unique adhesion change with device bias stressing which may result from active layer polymer cross-linking during bias stressing of device. It was shown that even small bias stresses, as a fraction of a full device lifetime stress period, result in measurable chemical change in the device. Further work needs to be conducted to fully understand the chemical nature of this interaction. Elucidation of this effect would enable doped OLED formulation to be engineered to suppress this effect and further extend lifetimes and reduce voltage climb.

DR. DEVIN MACKENZIE

2011-12-13T23:59:59.000Z

286

Low-cost flexible packaging for high-power Li-Ion HEV batteries.  

DOE Green Energy (OSTI)

Batteries with various types of chemistries are typically sold in rigid hermetically sealed containers that, at the simplest level, must contain the electrolyte while keeping out the exterior atmosphere. However, such rigid containers can have limitations in packaging situations where the form of the battery is important, such as in hand-held electronics like personal digital assistants (PDAs), laptops, and cell phones. Other limitations exist as well. At least one of the electrode leads must be insulated from the metal can, which necessitates the inclusion of an insulated metal feed-through in the containment hardware. Another limitation may be in hardware and assembly cost, such as exists for the lithium-ion batteries that are being developed for use in electric vehicles (EVs) and hybrid electric vehicles (HEVs). The large size (typically 10-100 Ah) of these batteries usually results in electric beam or laser welding of the metal cap to the metal can. The non-aqueous electrolyte used in these batteries are usually based on flammable solvents and therefore require the incorporation of a safety rupture vent to relieve pressure in the event of overcharging or overheating. Both of these features add cost to the battery. Flexible packaging provides an alternative to the rigid container. A common example of this is the multi-layered laminates used in the food packaging industry, such as for vacuum-sealed coffee bags. However, flexible packaging for batteries does not come without concerns. One of the main concerns is the slow egress of the electrolyte solvent through the face of the inner laminate layer and at the sealant edge. Also, moisture and air could enter from the outside via the same method. These exchanges may be acceptable for brief periods of time, but for the long lifetimes required for batteries in electric/hybrid electric vehicles, batteries in remote locations, and those in satellites, these exchanges are unacceptable. Argonne National Laboratory (ANL), in collaboration with several industrial partners, is working on low-cost flexible packaging as an alternative to the packaging currently being used for lithium-ion batteries [1,2]. This program is funded by the FreedomCAR & Vehicle Technologies Office of the U.S. Department of Energy. (It was originally funded under the Partnership for a New Generation of Vehicles, or PNGV, Program, which had as one of its mandates to develop a power-assist hybrid electric vehicle with triple the fuel economy of a typical sedan.) The goal in this packaging effort is to reduce the cost associated with the packaging of each cell several-fold to less than $1 per cell ({approx} 50 cells are required per battery, 1 battery per vehicle), while maintaining the integrity of the cell contents for a 15-year lifetime. Even though the battery chemistry of main interest is the lithium-ion system, the methodology used to develop the most appropriate laminate structure will be very similar for other battery chemistries.

Jansen, A. N.; Amine, K.; Henriksen, G. L.

2004-06-18T23:59:59.000Z

287

ESS 2012 Peer Review - Low-Cost, High-Performance Hybrid Membranes for Redox Flow Batteries - Hongxing Hu, Amsen Technologies  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DESIGN © 2008 DESIGN © 2008 www.PosterPresentations.com Low-Cost, High-Performance Hybrid Membranes for Redox Flow Batteries Hongxing Hu, Amsen Technologies LLC DOE SBIR Project, Program Manager at DOE: Dr. Imre Gyuk Objectives and Technical Approach Objectives: This SBIR project aims to develop low-cost, high performance hybrid polymeric PEMs for redox flow batteries (RFBs). Such membranes shall have high chemical stability in RFB electrolytes, high proton conductivity, low permeability of vanadium ions, along with high dimensional stability, high mechanical strength and durability, and lower cost than Nafion membranes. Approach: * Hybrid membranes of sulfonated polymers * Balance between different types of polymers for proton conductivity and chemical stability

288

ESS 2012 Peer Review - Low Cost, High Performance and Long Life Flow Battery Electrodes - Tom Stepien, Primus Power  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

With ARPA-E we optimized With ARPA-E we optimized * Adhesion * Current density * Duration * Catalytic coatings * Voltaic performance Goals * Cost-effectiveness * High-efficiency * Uniformity EnergyPod Low Cost, High Performance and Long Life Flow Battery Electrodes TM A Breakthrough In Distributed, Grid Scale Energy Storage ARPA-E has enabled Primus Power to create an innovative and technically advanced electrode Electrode Zinc Plating This, combined with our other advances has enabled us to create a unique flow battery system with ...  Low cost electrodes  Long life  High efficiency  Flexibility For...  Ubiquitous  Dispatchable  Cost effective ... grid-scale electrical energy storage to: * Accelerate renewable

289

DOE Hydrogen and Fuel Cells Program Record 12024: Hydrogen Production Cost Using Low-Cost Natural Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

2024 Date: September 19, 2012 2024 Date: September 19, 2012 Title: Hydrogen Production Cost Using Low-Cost Natural Gas Originator: Sara Dillich, Todd Ramsden & Marc Melaina Approved by: Sunita Satyapal Date: September 24, 2012 Item: Hydrogen produced and dispensed in distributed facilities at high-volume refueling stations using current technology and DOE's Annual Energy Outlook (AEO) 2009 projected prices for industrial natural gas result in a hydrogen levelized cost of $4.49 per gallon-gasoline-equivalent (gge) (untaxed) including compression, storage and dispensing costs. The hydrogen production portion of this cost is $2.03/gge. In comparison, current analyses using low-cost natural gas with a price of $2.00 per MMBtu can decrease the hydrogen levelized cost to $3.68 per gge (untaxed) including

290

Air-Microfluidics: Towards Lab-on-a-Chip Systems for Low-Cost Air-Quality  

NLE Websites -- All DOE Office Websites (Extended Search)

Air-Microfluidics: Towards Lab-on-a-Chip Systems for Low-Cost Air-Quality Air-Microfluidics: Towards Lab-on-a-Chip Systems for Low-Cost Air-Quality Monitoring Speaker(s): Igor Paprotny Date: November 12, 2013 - 12:00pm - 1:00pm Location: 90-3122 Seminar Host/Point of Contact: Lara Gundel Air-microfluidic devices that monitor particles suspended in air, as opposed to liquids, can dramatically reduce the size and cost of future air-quality sensors. The use of microelectromechanical systems (MEMS) technologies and wafer-scale integration permits the inclusion of many different sensors onto a small footprint. Benefits of air-microfluidics are many. For example, air-microfluidic lab-on-a-chip devices can be used as portable sensors for tracking individual exposure to airborne pollutants. Such sensors will enable linking exposure and biometric information to

291

ESS 2012 Peer Review - Low Cost and Highly Selective Composite Membrane for Redox Flow Batteries - Fei Wang, EIC Laboratories  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Low Cost and Highly Selective Composite Membrane for Redox Flow Batteries Low Cost and Highly Selective Composite Membrane for Redox Flow Batteries Fei Wang, Dharmasena Peramunage, James M. Sylvia, and Monsy M. Jocob EIC Laboratories, Inc. 111 Downey Street, Norwood, MA 02062. www.eiclabs.com Identification of the Problem and Technical Approach Redox flow batteries (RFB) hold great promise for large scale electrochemical energy storage. A critical component of RFB is the membrane which separates anode and cathode compartments. The current state-of-the-art membrane, NAFION is too expensive, lacks selectivity, permitting leakage between anode and cathode electrolyte compartments. EIC is developing a novel bilayer, interpenetrating network membrane. Thin Nafion layer for anode side protection providing oxidative stability. The bulk part of the membrane consists of a block

292

Cost-Effective Cable Insulation: Nanoclay Reinforced Ethylene-Propylene-Rubber for Low-Cost HVDC Cabling  

SciTech Connect

GENI Project: GE is developing new, low-cost insulation for high-voltage direct current (HVDC) electricity transmission cables. The current material used to insulate HVDC transmission cables is very expensive and can account for as much as 1/3 of the total cost of a high-voltage transmission system. GE is embedding nanomaterials into specialty rubber to create its insulation. Not only are these materials less expensive than those used in conventional HVDC insulation, but also they will help suppress excess charge accumulation. The excess charge left behind on a cable poses a major challenge for high-voltage insulationif its not kept to a low level, it could ultimately lead the insulation to fail. GEs low-cost insulation is compatible with existing U.S. cable manufacturing processes, further enhancing its cost effectiveness.

None

2012-02-24T23:59:59.000Z

293

Testing the normality of the gravitational wave data with a low cost recursive estimate of the kurtosis  

E-Print Network (OSTI)

We propose a monitoring indicator of the normality of the output of a gravitational wave detector. This indicator is based on the estimation of the kurtosis (i.e., the 4th order statistical moment normalized by the variance squared) of the data selected in a time sliding window. We show how a low cost (because recursive) implementation of such estimation is possible and we illustrate the validity of the presented approach with a few examples using simulated random noises.

E. Chassande-Mottin

2002-12-02T23:59:59.000Z

294

Low Cost Open-Path Instrument for Monitoring Surface Carbon Dioxide at Sequestration Sites Phase I SBIR Final Report  

Science Conference Proceedings (OSTI)

Public confidence in safety is a prerequisite to the success of carbon dioxide (CO2) capture and storage for any program that intends to mitigate greenhouse gas emissions. In that regard, this project addresses the security of CO2 containment by undertaking development of what is called ?¢????an open path device?¢??? to measure CO2 concentrations near the ground above a CO2 storage area.

Sheng Wu

2012-10-02T23:59:59.000Z

295

Phase 2 of the array automated assembly task for the low cost silicon solar array project. Final report  

DOE Green Energy (OSTI)

Studies were conducted on several fundamental aspects of electroless nickel/solder metallization for silicon solar cells. A process proposed by Motorola, which precedes the electroless nickel plating with several steps of palladium plating and heat treatment, was compared directly with single step electroless nickel plating. Work has directed toward answering specific questions concerning the effect of silicon surface oxide on nickel plating, effects of thermal stresses on the metallization, sintering of nickel plated on silicon, and effects of exposure to the plating solution on solar cell characteristics. The Motorola process was compared with simple electroless nickel plating in a series of parallel experiments. Results are presented. (WHK)

Petersen, R.C.

1980-11-01T23:59:59.000Z

296

Silicon Materials Task of the Low Cost Solar Array Project (Phase II). Ninth quarterly report, October 1--December 31, 1977  

DOE Green Energy (OSTI)

It was proposed to investigate and define the effects of various processes, contaminants and process-contaminant interactions in the performance of terrestrial solar cells. The major effort has been in the areas of crystal growth and thermal processing, comparison of impurity effects in low and high resistivity silicon, modeling the behavior of p-type ingots containing Mo and C, and, quantitative analysis of bulk lifetime and junction degradation effects in contaminated solar cells. The lifetime of uncontaminated silicon was mesured as a function of heat treatment temperature (200 to 1200/sup 0/C). The performance of solar cells fabricated on silicon web crystals grown from melts containing about 10/sup 18/cm/sup -3/ of Cr, Mn, Fe, Ni, Ti and V, respectively, were measured. Deep level spectroscopy of metal-contaminated ingots has been employed to determine the level and density of recombination centers due to Ti, V, Ni, and Cr.

Hopkins, R.H.; Davis, J.R.; Blais, P.D.; Rohatgi, A.; Rai-Choudhury, P.; Hanes, M.H.; McCormick, J.R.

1977-01-01T23:59:59.000Z

297

Phase 2 of the automated array assembly task of the Low-Cost Silicon Solar Array Project. Annual report  

DOE Green Energy (OSTI)

This report presents the results of investigations and analyses of an advanced process sequence for manufacturing high efficiency solar cells and modules in a cost-effective manner. The entire process sequence is presented and discussed step by step. Emphasis is on process simplicity and minimizing consumed materials. The process sequence incorporates texture etching, plasma processes for damage removal and patterning, ion implantation, low pressure silicon nitride deposition, and plated metal. A reliable module design is presented. Specific process step developments are presnted. Further, a detailed cost analysis has been performed to indicate future areas of fruitful cost reduction effort. Finally, recommendations for advanced investigations are presented.

Coleman, M.G.; Grenon, L.P.; Pastirik, E.M.; Pryor, R.A.; Sparks, T.G.

1978-11-01T23:59:59.000Z

298

The development of low cost LiFePO4-based high power lithium-ion batteries  

NLE Websites -- All DOE Office Websites (Extended Search)

development of low cost LiFePO4-based high power lithium-ion batteries development of low cost LiFePO4-based high power lithium-ion batteries Title The development of low cost LiFePO4-based high power lithium-ion batteries Publication Type Journal Article Year of Publication 2005 Authors Striebel, Kathryn A., Joongpyo Shim, Azucena Sierra, Hui Yang, Xiangyun Song, Robert Kostecki, and Kathryn N. McCarthy Journal Journal of Power Sources Volume 146 Pagination 33-38 Keywords libob, lifepo4, lithium-ion, post-test, raman spectroscopy Abstract Pouch type LiFePO4-natural graphite lithium-ion cells were cycled at constant current with periodic pulse-power testing in several different configurations. Components were analyzed after cycling with electrochemical, Raman and TEM techniques to determine capacity fade mechanisms. The cells with carbon-coated current collectors in the cathode and LiBOB-salt electrolyte showed the best performance stability. In many cases, iron species were detected on the anodes removed from cells with both TEM and Raman spectroscopy. The LiFePO4 electrodes showed unchanged capacity suggesting that the iron is migrating in small quantities and is acting as a catalyst to destabilize the anode SEI in these cells.

299

Modular Hybrid Plasma Reactor for Low Cost Bulk Production of Nanomaterials  

SciTech Connect

INL developed a bench scale modular hybrid plasma system for gas phase nanomaterials synthesis. The system was being optimized for WO3 nanoparticles production and scale model projection to a 300 kW pilot system. During the course of technology development many modifications had been done to the system to resolve technical issues that had surfaced and also to improve the performance. All project tasks had been completed except 2 optimization subtasks. These 2 subtasks, a 4-hour and an 8-hour continuous powder production runs at 1 lb/hr powder feeding rate, were unable to complete due to technical issues developed with the reactor system. The 4-hour run had been attempted twice and both times the run was terminated prematurely. The modular electrode for the plasma system was significantly redesigned to address the technical issues. Fabrication of the redesigned modular electrodes and additional components had been completed at the end of the project life. However, not enough resource was available to perform tests to evaluate the performance of the new modifications. More development work would be needed to resolve these problems prior to scaling. The technology demonstrated a surprising capability of synthesizing a single phase of meta-stable delta-Al2O3 from pure alpha-phase large Al2O3 powder. The formation of delta-Al2O3 was surprising because this phase is meta-stable and only formed between 973-1073 K, and delta-Al2O3 is very difficult to synthesize as a single phase. Besides the specific temperature window to form this phase, this meta-stable phase may have been stabilized by nanoparticle size formed in a high temperature plasma process. This technology may possess the capability to produce unusual meta-stable nanophase materials that would be otherwise difficult to produce by conventional methods. A 300 kW INL modular hybrid plasma pilot scale model reactor had been projected using the experimental data from PPG Industries 300 kW hot wall plasma reactor. The projected size of the INL 300 kW pilot model reactor would be about 15% that of the PPG 300 kW hot wall plasma reactor. Including the safety net factor the projected INL pilot reactor size would be 25-30% of the PPG 300 kW hot wall plasma pilot reactor. Due to the modularity of the INL plasma reactor and the energy cascading effect from the upstream plasma to the downstream plasma the energy utilization is more efficient in material processing. It is envisioning that the material through put range for the INL pilot reactor would be comparable to the PPG 300 kW pilot reactor but the energy consumption would be lower. The INL hybrid plasma technology is rather close to being optimized for scaling to a pilot system. More near term development work is still needed to complete the process optimization before pilot scaling.

Peter C. Kong

2011-12-01T23:59:59.000Z

300

Low cost solar array project. Quarterly progress report, January-March 1980  

DOE Green Energy (OSTI)

The overall objective of the LSA Silicon Material Task is to establish a chemical process for producing silicon at a rate and rice commensurate with the production goals of the LSA project for solar-cell modules. As part of -- overall Silicon Material Task, Union Carbide developed the silane-silicon process and advanced the technology to the point where it has a definite potential for providing high-purity polysilicon on a commercial scale at a price of $14/kg by 1986 (1980 dollars). This work, completed under Phases I and II of the contract, provided a firm base for the Phase III program (initiated in April 1979) aimed at establishing the practicality of the process by pursuing the following specific objectives: (1) design, fabricate, install, and operate an Experimental Process System Development Unit (EPSDU) sized for 100 MT/Yr to obtain extensive performance data to establish the data base for the design of commercial facilities; (2) perform support research and development to provide an information base usable for the EPSDU and for technological design and economic analysis for potential scale-up of the process; and (3) perform iterative economic analyses of the estimated product cost for the production of semiconductor-grade silicon in a facility capably of producing 1000 MT/Yr. Progress is repoted in detail. (WHK)

Not Available

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
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301

The development of low cost LiFePO4-based high power lithium-ion batteries  

DOE Green Energy (OSTI)

The cycling performance of low-cost LiFePO4-based high-power lithium-ion cells was investigated and the components were analyzed after cycling to determine capacity fade mechanisms. Pouch type LiFePO4/natural graphite cells were assembled and evaluated by constant C/2 cycling, pulse-power and impedance measurements. From post-test electrochemical analysis after cycling, active materials, LiFePO4 and natural graphite, showed no degradation structurally or electrochemically. The main reasons for the capacity fade of cell were lithium inventory loss by side reaction and possible lithium deposition on the anode.

Shim, Joongpyo; Sierra, Azucena; Striebel, Kathryn A.

2003-11-25T23:59:59.000Z

302

The use of electrochemical sensors for monitoring urban air quality in low-cost, high-density networks.  

E-Print Network (OSTI)

electrolyte reservoirs for increased long-term baseline stability, and larger integral batteries allowing operation for in excess of 3 months without intervention. In this case sensors were sealed with rubber O-rings on the bottom of the enclosure behind a... The use of electrochemical sensors for monitoring urban air quality in low-cost, high-density networks. M. I. Mead1*, O.A.M. Popoola1, G. B. Stewart1, P. Landshoff3, M. Calleja2, M. Hayes2, J. J. Baldovi1, T. F. Hodgson1, M. W. McLeod1, J. Dicks4...

Mead, M I; Popoola, O A M; Stewart, G B; Landshoff, P; Calleja, M; Hayes, M; Baldovi, J J; Hodgson, T F; McLeod, M W; Dicks, J; Lewis, A; Cohen, J; Baron, R; Saffell, J R; Jones, R L

303

The Development of Low-Cost Integrated Composite Seal for SOFC: Materials and Design Methodologies  

DOE Green Energy (OSTI)

This report summarizes the work conducted by UConn SOFC seal development team during the Phase I program and no cost extension. The work included composite seal sample fabrication, materials characterizations, leak testing, mechanical strength testing, chemical stability study and acoustic-based diagnostic methods. Materials characterization work revealed a set of attractive material properties including low bulk permeability, high electrical resistivity, good mechanical robustness. Composite seal samples made of a number of glasses and metallic fillers were tested for sealing performance under steady state and thermal cycling conditions. Mechanical testing included static strength (pull out) and interfacial fracture toughness measurements. Chemically stability study evaluated composite seal material stability after aging at 800 C for 168 hrs. Acoustic based diagnostic test was conducted to help detect and understand the micro-cracking processes during thermal cycling test. The composite seal concept was successfully demonstrated and a set of material (coating composition & fillers) were identified to have excellent thermal cycling performance.

Xinyu Huang; Kristoffer Ridgeway; Srivatsan Narasimhan; Serg Timin; Wei Huang; Didem Ozevin; Ken Reifsnider

2006-07-31T23:59:59.000Z

304

Low-Cost Solar-Array Project. Quarterly progress report, April-June 1980  

DOE Green Energy (OSTI)

The overall objective of the LSA Silicon Material Task is to establish a chemical process for producing silicon at a rate and price commensurate with the production goals of the LSA project for solar-cell modules. As part of the overall Silicon Material Task, Union Carbide developed the silane-silicon process and advanced the technology to the point where it has a definite potential for providing high-purity polysilicon on a commercial scale at a price of $14/kg by 1986 (1980 dollars). This work, completed under Phases I and II of the contract, provided a firm base for the Phase III Program (initiated in April 1979) aimed at establishing the practicality of the process by pursuing the following specific objectives: (1) design, fabricate, install, and operate an Experimental Process System Development Unit (EPSDU) sized for 100 MT/yr to obtain extensive performance data to establish the data base for the design of commercial facilities; (2) perform support research and development to provide an information base usable for the EPSDU and for technological design and economic analysis for potential scale-up of the process; and (3) perform iterative economic analyses of the estimated product cost for the production of semiconductor-grade silicon in a facility capable of producing 1000 MT/yr. This process for preparing semiconductor-grade silicon in the EPSDU from metallurgical-grade (M-G) silicon is based on a well-integrated arrangement of purification steps that provides a cost-effective process system. The three basic steps entail converting M-G silicon to trichlorosilane, redistributing the trichlorosilane to produce silane, and thermally decomposing the silane to form amorphous silicon powder. The powder is then melted and the molten silicon is cast to polycrystalline for subsequent use in fabricating solar cells. Progress is reported in detail. (WHK)

Not Available

1980-01-01T23:59:59.000Z

305

Low-Cost High-Concentration Photovoltaic Systems for Utility Power Generation  

DOE Green Energy (OSTI)

Under DOE's Technology Pathway Partnership (TPP) program, Amonix, Inc. developed a new generation of high-concentration photovoltaic systems using multijunction technology and established the manufacturing capacity needed to supply multi-megawatt power plants buing using the new Amonix 7700-series solar energy systems. For this effort, Amonix Collaborated with a variety of suppliers and partners to complete project tasks. Subcontractors included: Evonik/Cyro; Hitek; the National Renewable Energy Laboratory (NREL); Raytech; Spectrolab; UL; University of Nevada, Las Vegas; and TUV Rheinland PTL. The Amonix TPP tasks included: Task 1: Multijunction Cell Optimization for Field Operation, Task 2: Fresnel Lens R&D, Task 3: Cell Package Design & Production, Task 4: Standards Compliance and Reliability Testing, Task 5: Receiver Plate Production, Task 6: MegaModule Performance, Task 7: MegaModule Cost Reduction, Task 8: Factory Setup and MegaModule Production, Task 9: Tracker and Tracking Controller, Task 10: Installation and Balance of System (BOS), Task 11: Field Testing, and Task 12: Solar Advisor Modeling and Market Analysis. Amonix's TPP addressed nearly the complete PV value chain from epitaxial layer design and wafer processing through system design, manufacturing, deployment and O&M. Amonix has made progress toward achieving these reduced costs through the development of its 28%+ efficient MegaModule, reduced manufacturing and installation cost through design for manufacturing and assembly, automated manufacturing processes, and reduced O&M costs. Program highlights include: (1) Optimized multijunction cell and cell package design to improve performance by > 10%; (2) Updated lens design provided 7% increased performance and higher concentration; (3) 28.7% DC STC MegaModule efficiency achieved in Phase II exceeded Phase III performance goal; (4) New 16' focal length MegaModule achieved target materials and manufacturing cost reduction; (5) Designed and placed into production 25 MW/yr manufacturing capacity for complete MegaModules, including cell packages, receiver plates, and structures with lenses; (6) Designed and deployed Amonix 7700 series systems rated at 63 kW PTC ac and higher. Based on an LCOE assessment using NREL's Solar Advisor Model, Amonix met DOE's LCOE targets: Amonix 2011 LCOE 12.8 cents/kWh (2010 DOE goal 10-15); 2015 LCOE 6.4 cents/kWh (2015 goal 5-7) Amonix and TPP participants would like to thank the U.S. Department of Energy Solar Energy Technology Program for funding received under this program through Agreement No. DE-FC36-07GO17042.

McConnell, R.; Garboushian, V.; Gordon, R.; Dutra, D.; Kinsey, G.; Geer, S.; Gomez, H.; Cameron, C.

2012-03-31T23:59:59.000Z

306

Single-shaft combined cycle packs power in at low cost  

Science Conference Proceedings (OSTI)

Worldwide demand for combined cycle (CC) powerplants has grown exponentially over the past decade, and most forecasts call for the boom to continue. Reasons, by now, are clear: the CC powerplant--in its basic form, a gas turbine exhausting into a heat-recovery steam generator (HRSG) that supplies a steam turbine--is the most efficient electric generating system commercially available today. It also exhibits capital costs significantly lower than competing nuclear, fossil-fired steam, and renewable-energy stations. In addition, its low air emissions, water consumption, space requirements, and physical profile are no trifling advantages in an era marked by tough permitting and siting processes. A relatively recent advance that may further cement the CC`s front-running position is combining the gas turbine, steam turbine, and electric generator on a single shaft. Locking together the turbines and generator to form one single-train operating system promises to simplify plant design and operation, and may lower first costs. Trade-offs of the single-shaft approach, however, include the need for higher starting power and less operating flexibility, particularly if no synchronous clutch is used between the gas and steam turbine. Also worth noting: the arrangement takes away the phased construction option where a simple-cycle gas turbine is installed first and the steam cycle is added later. But depending on project specifics, the rewards of the single-shaft CC can outweigh its drawbacks, as a look at several recent installations reveals in this article.

Swanekamp, R.

1996-01-01T23:59:59.000Z

307

Low Cost Open-Path Instrument for Monitoring Atmospheric Carbon Dioxide at Sequestration Sites  

Science Conference Proceedings (OSTI)

In the past 48 months of the project, we have accomplished all objectives outlined in the proposal. In the first year, we demonstrated the technology for remote sensing on a bench top scale. The core electronics are designed and fabricated. We achieved results that will safely deliver the specifications outlined in the proposal. In the 2nd year, 2 major technical tasks outlined in the Statement of Objectives, i.e. Build a field test ready prototype of a long-range CO2 monitor, and characterize its performance in the short term and demonstrate that the monitor characteristics meet the goals set in the initial proposal, have been accomplished. We also conducted simulation work that defines the different deployment strategies for our sensors at sequestration sites. In the 3rd year, Specifications and Testing protocols have been developed for the CO2 monitor. 1% accuracy had been demonstrated in short period tests ({approx}1 hour). Unattended system operation and stability over a period of a week has been demonstrated with and without EDFA (laser power amplifier). The sensitivity of the instrument to CO2 leaks has been demonstrated. In the 4th no-cost extension year, we further field tested the system and the experience we accumulated give us a clear picture of what else are needed for final field deployment. These results have shown all the objectives of the project have been fulfilled. In July 2008, along with our commercial partner we won the DOE STTR phase I award to commercialize the instrument developed in this project - a testimony to the achievement of this research.

William Goddard

2008-09-30T23:59:59.000Z

308

Design and engineering of low-cost centimeter-scale repeatable and accurate kinematic fixtures for nanomanufacturing equipment using magnetic preload and potting  

E-Print Network (OSTI)

This paper introduces a low-cost, centimeter-scale kinematic coupling fixture for use in nanomanufacturing equipment. The fixture uses magnetic circuit design techniques to optimize the magnetic preload required to achieve ...

Watral, Adrienne

2011-01-01T23:59:59.000Z

309

ESS 2012 Peer Review - Redox Flow Battery (RFB) with Low-cost Electrolyte and Membrane Technologies - Thomas Kodenkandath, ITN Energy Systems  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Innovative, high energy density Mn-V based RFB electrolytes as a Innovative, high energy density Mn-V based RFB electrolytes as a low-cost alternate to all-Vanadium systems * Low-cost membrane technology, based on renewable biopolymer Chitosan with improved proton conduction & chemical stability, adaptable to Mn-V system * Scale-up of electrolyte and membrane technologies in pursuit of ARPA-E's goal for a 2.5kW/10kWh RFB stack with integrated BoS at a total cost of ~$1000/unit and ~1.2 m 3 footprint ITN Energy Systems, Inc., Littleton, CO 2.5kW/10kWh Redox Flow Battery (RFB) with Low-cost Electrolyte and Membrane Technologies $2.1 M, 33-month program awarded by ARPA-E Sept 7, 2012 Dr. Thomas Kodenkandath High-Performance, Low-cost RFB through Electrolyte & Membrane Innovations Technology Summary

310

Finished Prokaryotic Genome Assemblies from a Low-cost Combination of Short and Long Reads (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

Science Conference Proceedings (OSTI)

Shuangye Yin on "Finished prokaryotic genome assemblies from a low-cost combination of short and long reads" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

Yin, Shuangye (Broad Institute)

2012-06-01T23:59:59.000Z

311

Low-Cost Nano-Patterning Process Makes Millions of Holes in Silver Film, Boosting Light-Capturing Qualities of Solar Cells (Fact Sheet)  

DOE Green Energy (OSTI)

NREL researchers have demonstrated a simple, low-cost way to pattern nano-sized holes in thin silver films in order to trap light waves and boost the transmission of photons into usable energy.

Not Available

2011-02-01T23:59:59.000Z

312

Development of a low-cost integrated 20-kW-AC solar tracking subarray for grid-connected PV power system applications. Final technical report  

DOE Green Energy (OSTI)

This report chronicles Utility Power Group's (UPG) successful two-year Photovoltaic Manufacturing Technology (PVMaT) Phase 4A1 work effort which began in July, 1995. During this period, UPG completed design, fabrication, testing and demonstration of a modular and fully integrated 15-kW-ac, solar tracking PV power system sub-array. The two key and innovative components which were developed are a Modular Panel which optimizes factory assembly of PV modules into a large area, field-deployable, structurally-integrated PV panel, and an Integrated Power Processing Unit which combines all dc and ac power collection, conversion and control functions within a single, field-deployable structurally-integrated electrical enclosure. These two key sub-array elements, when combined with a number of other electrical, mechanical, and structural components, create a low-cost and high-performance PV power system. This system, or sub-array, can be deployed in individual units, or paralleled with any number of other sub-arrays, to construct multi-megawatt P fields. 21 figs.

Stern, M.; Duran, G.; Fourer, G.; Mackamul, K.; Whalen, W.; Loo, M. van; West, R. [Utility Power Group, Chatsworth, CA (US)

1998-06-01T23:59:59.000Z

313

Establishment of the feasibility of a process capable of low cost, high volume production of silane, SiH/sub 4/. Low cost silicon solar array project, Task I. Quarterly progress report, July 1976--October 1976  

DOE Green Energy (OSTI)

The study of a process for the low cost production of silane included laboratory investigations of the kinetics of the redistribution of dichlorosilane and trichlorosilane vapor over a tertiary amine ion exchange resin catalyst. The hydrogenation of SiCl/sub 4/ to form HSiCl/sub 3/ and the direct synthesis of H/sub 2/SiCl/sub 2/ from HCl gas and metallurigical silicon metal were also studied. The purification of SiH/sub 4/ using activated carbon adsorbent was studied along with a process for storing SiH/sub 4/ adsorbed on carbon. The latter makes possible a higher volumetric efficiency than the current practice of compressed gas storage. The mini-plant designed to produce ten pounds per day of SiH/sub 4/ is nearly complete, a detailed description of the unit and its essential design features are given.

Breneman, W.C.; Mui, J.Y.P.

1976-10-15T23:59:59.000Z

314

Evaluation of selected chemical processes for production of low-cost silicon: Phase III. Silicon Material Task, Low-Cost Solar Array Project. Sixteenth/seventeenth quarterly progress report, July-December 31, 1979  

DOE Green Energy (OSTI)

The method under development for the production of semiconductor grade silicon is based on the zinc vapor reduction of silicon tetrachloride in a fluidized bed of seed particles. Construction of the PDU was completed during the report period, the fluidized-bed reactor was coated internally with silicon/SiC, and the operation of several systems was checked out. However, problems with the zinc feed system, unrelated to its basic operability, delayed introduction of zinc vapor to the PDU. At the end of the report period, the zinc feed system stood ready for tests of the control of zinc vapor feed rate by regulation of r.f. induction heating directly coupled to the liquid zinc. A study of the zinc distribution in miniplant silicon products containing zinc at the 300 and 3000 ppM levels suggests that the occlusion of zinc is caused by zinc mist entrained from the vaporizer, and it should be possible to drive the level to below 300 ppM by proper equipment design and process control.

Blocher, J.M. Jr.; Browning, M.F.

1980-03-07T23:59:59.000Z

315

Evaluation of selected chemical processes for production of low-cost silocon. (Phases I and II. ) Final report, October 9, 1975--July 9, 1978. Silicon Material Task, Low-Cost Solar Array Project  

SciTech Connect

The zinc reduction of silicon tetrachloride in a fluidized bed of seed particles to yield a granular product was studied along with several modifications of the thermal decomposition or hydrogen reduction of silicon tetraiodide. Although all contenders were believed to be capable of meeting the quality requirements of the LSA Project, it was concluded that only the zinc reduction of the chloride could be made economically feasible at a cost below $10/kg silicon (1975 dollars). Accordingly, subsequent effort was limited to evaluating that process. A miniplant, consisting of a 5-cm-diameter fluidized-bed reactor and associated equipment was used to study the deposition parameters, temperature, reactant composition, seed particle size, bed depth, reactant throughput, and methods of reactant introduction. It was confirmed that the permissible range of fluidized-bed temperature was limited at the lower end by zinc condensation (918 C) and at higher temperatures by rapidly decreasing conversion efficiency (by 0.1 percent per degree C from 72 percent (thermodynamic) at 927 for a stoichiometric mixture). Use of a graded bed temperature was shown to increase the conversion efficiency over that obtained in an isothermal bed. Other aspects of the process such as the condensation and fused-salt electrolysis of the ZnCl/sub 2/ by-product for recycle of zinc and chlorine were studied to provide information required for design of a 50 MT/year experimental facility, visualized as the next stage in the development. Projected silicon costs of $7.35 and $8.71 per kg (1975 dollars) for a 1000 MT/year facilitywere obtained, depending upon the number and size of the fluidized-bed reactors and ZnCl/sub 2/ electrolytic cells used. An energy payback time of 5.9 months was calculated for the product silicon.

Blocher, J.M. Jr.; Browning, M.F.

1978-07-09T23:59:59.000Z

316

Novel Low-Cost Process for the Gasification of Biomass and Low-Rank Coals  

DOE Green Energy (OSTI)

Farm Energy envisaged a phased demonstration program, in which a pilot-scale straw gasifier will be installed on a farm. The synthesis gas product will be used to initially (i) generate electricity in a 300 kW diesel generator, and subsequently (ii) used as a feedstock to produce ethanol or mixed alcohols. They were seeking straw gasification and alcohol synthesis technologies that may be implemented on farm-scale. The consortium, along with the USDA ARS station in Corvallis, OR, expressed interest in the dual-bed gasification concept promoted by WRI and Taylor Energy, LLC. This process operated at atmospheric pressure and employed a solids-circulation type oxidation/reduction cycle significantly different from traditional fluidized-bed or up-draft type gasification reactors. The objectives of this project were to perform bench-scale testing to determine technical feasibility of gasifier concept, to characterize the syngas product, and to determine the optimal operating conditions and configuration. We used the bench-scale test data to complete a preliminary design and cost estimate for a 1-2 ton per hour pilot-scale unit that is also appropriate for on-farm scale applications. The gasifier configuration with the 0.375-inch stainless steel balls recirculating media worked consistently and for periods up to six hours of grass feed. The other principle systems like the boiler, the air pump, and feeder device also worked consistently during all feeding operations. Minor hiccups during operation tended to come from secondary systems like the flare or flammable material buildup in the exit piping. Although we did not complete the extended hour tests to 24 or 48 hours due to time and budget constraints, we developed the confidence that the gasifier in its current configuration could handle those tests. At the modest temperatures we operated the gasifier, slagging was not a problem. The solid wastes were dry and low density. The majority of the fixed carbon from the grass ended up in the solid waste collected in the external cyclone. The volatiles were almost all removed in the gasifier. While the average gas heating value of the collected gas products was 50 BTUs/scf or less, addition a of the second gas exit for combustion gases would increase that value by a factor of two or three. Other changes to the current design such as shortening the gasifier body and draft tube would lead to lower air use and shorter heating times. There was no evidence of steam reforming at the current operating temperature. Likewise there was no indication of significant tar production. Reconfiguration of the gasifier at the on farm site may yet yield more significant results that would better qualify this gasifier for small scale biomass operations.

Thomas Barton

2009-03-05T23:59:59.000Z

317

ESS 2012 Peer Review - Iron Based Flow Batteries for Low Cost Grid Level Energy Storage - Jesse Wainright, Case Western Reserve  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

authors gratefully acknowledge the support of the Department of Energy/Office of Electricity's Energy Storage Program. authors gratefully acknowledge the support of the Department of Energy/Office of Electricity's Energy Storage Program. Iron Based Flow Batteries for Low Cost Grid Level Energy Storage J.S. Wainright, R. F. Savinell, P.I.s Dept. of Chemical Engineering, Case Western Reserve University Purpose Impact on Iron Based Batteries on the DOE OE Energy Storage Mission Recent Results Recent Results Develop efficient, cost-effective grid level storage capability based on iron. Goals of this Effort: * Minimize Cost/Watt by increasing current density - Hardware Cost >> Electrolyte Cost * Minimize Cost/Whr by increasing plating capacity * Maximize Efficiency by minimizing current lost to hydrogen evolution Electrochemistry of the all-Iron system:

318

Low cost sprayed CdTe solar cell research. First quarterly progress report, 15 August-14 November 1979  

DOE Green Energy (OSTI)

During the first quarter of this contract, facilities for the spray pyrolysis deposition of CdTe thin films using a process anolagous to that used to spray deposit device-quality films of CdS were prepared. A Te salt, ..beta..-(CH/sub 3/)/sub 2/TeI/sub 2/, suitable for use in the spray process was synthesized. The facilities were shown to function properly by the successful spraying of good quality CdS thin films. A number of initial spray experiments were conducted utilizing the ..beta..-(CH/sub 3/)/sub 2/TeI/sub 2/ and other inorganic tellurium-bearing compounds which also show great promise in producing low-cost sprayed CdTe solar cells. Initial chemical tests of these films indicated the presence of both Cd and Te, and x-ray diffraction analysis is presently underway to determine the actual concentration of CdTe.

Sienkiewicz, P.; Lis, S.; Serreze, H.B.; Entine, G.

1979-12-01T23:59:59.000Z

319

4th Responsive Space Conference RS4-2006-3003 Low-Cost Responsive Exploitation of Space by  

E-Print Network (OSTI)

This paper addresses advantages and educational values of ultra-small satellite development. In particular, the space-based techniques in designing and manufacturing the HAUSAT (Hankuk Aviation University SATellite) ultra-small satellite series, being developed by SSRL (Space System Research Lab.) of Hankuk Aviation University, are highlighted. These ultra-small satellites can be utilized as a space technology test bed. HAUSAT-2 is intended to be a verification platform for the Koreas first spaceborne star tracker and a GPS receiver. New technologies for ultra-small satellites, such as solar cell laydown, plug-andplay type Bus Electronics Unit (BEU), attitude control method, and energy balance analysis of body-mounted solar panels, were implemented on HAUSAT-1 and 2. Engineering skills and technologies obtained by the process of programs such as these will be an enabler for the responsive space that will leverage the low cost, high efficiency ultra-small satellites. 1

Hausat- Nano Satellite; Young-keun Chang; Suk-jin Kang; Byoung-young Moon; Byung-hun Lee; Byung-hun Lee

2006-01-01T23:59:59.000Z

320

Research and development of low cost processes for integrated solar arrays. Final report, April 15, 1974--January 14, 1976  

DOE Green Energy (OSTI)

Results of a program to study process routes leading to a low cost large area integrated silicon solar array manufacture for terrestrial applications are reported. Potential processes for the production of solar-grade silicon are evaluated from thermodynamic, economic, and technical feasibility points of view. Upgrading of the present arc-furnace process is found most favorable. Experimental studies of the Si/SiF/sub 4/ transport and purification process show considerable impurity removal and reasonable transport rates. Silicon deformation experiments indicate production of silicon sheet by rolling at 1350/sup 0/C is feasible. Significant recrystallization by strain-anneal technique has been observed. Experimental recrystallization studies using an electron beam line source are discussed. A maximum recrystallization velocity of approximately 9 m/hr is calculated for silicon sheet. A comparative process rating technique based on detailed cost analysis is presented.

Graham, C.D.; Kulkarni, S.; Louis, E.

1976-05-01T23:59:59.000Z

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321

A LOW-COST PROCESS FOR THE SYNTHESIS OF NANOSIZE YTTRIA-STABILIZED ZIRCONIA (YSZ) BY MOLECULAR DECOMPOSITION  

DOE Green Energy (OSTI)

This report summarizes the results of work done during the performance period on this project, between October 1, 2002 and December 31, 2003, with a three month no-cost extension. The principal objective of this work was to develop a low-cost process for the synthesis of sinterable, fine powder of YSZ. The process is based on molecular decomposition (MD) wherein very fine particles of YSZ are formed by: (1) Mixing raw materials in a powder form, (2) Synthesizing compound containing YSZ and a fugitive constituent by a conventional process, and (3) Selectively leaching (decomposing) the fugitive constituent, thus leaving behind insoluble YSZ of a very fine particle size. While there are many possible compounds, which can be used as precursors, the one selected for the present work was Y-doped Na{sub 2}ZrO{sub 3}, where the fugitive constituent is Na{sub 2}O. It can be readily demonstrated that the potential cost of the MD process for the synthesis of very fine (or nanosize) YSZ is considerably lower than the commonly used processes, namely chemical co-precipitation and combustion synthesis. Based on the materials cost alone, for a 100 kg batch, the cost of YSZ made by chemical co-precipitation is >$50/kg, while that of the MD process should be <$10/kg. Significant progress was made during the performance period on this project. The highlights of the progress are given here in a bullet form. (1) From the two selected precursors listed in Phase I proposal, namely Y-doped BaZrO{sub 3} and Y-doped Na{sub 2}ZrO{sub 3}, selection of Y-doped Na{sub 2}ZrO{sub 3} was made for the synthesis of nanosize (or fine) YSZ. This was based on the potential cost of the precursor, the need to use only water for leaching, and the short time required for the process. (2) For the synthesis of calcia-stabilized zirconia (CSZ), which has the potential for use in place of YSZ in the anode of SOFC, Ca-doped Na{sub 2}ZrO{sub 3} was demonstrated as a suitable precursor. (3) Synthesis of Y-doped Na{sub 2}ZrO{sub 3} and Ca-doped Na{sub 2}ZrO{sub 3} was achieved using a conventional calcination process. The corresponding surface area was {approx}1 to 2 m{sup 2}/g. (4) By leaching with water, nanosize (very fine) YSZ and CSZ powders were synthesized. The corresponding surface area was {approx}65 m{sup 2}/g. This demonstrates the MD concept, namely macroscopic precursor {yields} leaching {yields} very fine (nanosize) product. (5) Crystallite size was determined by TEM ({approx}5 nm). (6) Anode-supported cells, with YSZ and CSZ made by the MD process, were successfully made by a conventional pressing and sintering process. (7) Single cells were made with as-synthesized YSZ and CSZ as a constituent in anode support. (8) A single cell (LSM + YSZ cathode) was tested at 800 C with H{sub 2}/air, with maximum power density of {approx}1.2 W/cm{sup 2}. (9) Dense samples of both YSZ and CSZ made by the MD process were fabricated. (10) Preliminary cost analysis, based on materials cost only, showed that the cost of YSZ powder made by the MD process should be considerably lower than that made by either chemical co-precipitation or combustion synthesis. For an anode-supported cell design, for an assumed power density of 0.5 W/cm{sup 2}, the cost of YSZ made by the MD process is estimated to be {approx}$5/kW. By contrast, the cost per kW for chemical co-precipitation or combustion synthesis is {approx}$70/kW and {approx}$23/kW, respectively. Efforts are currently underway to fabricate 5 cm x 5 cm active anode-supported cells with YSZ made by the MD process.

Anil V. Virkar

2004-05-06T23:59:59.000Z

322

Modelling, simulation and analysis of low-cost direct torque control of PMSM using hall-effect sensors  

E-Print Network (OSTI)

This thesis focuses on the development of a novel Direct Torque Control (DTC) scheme for permanent magnet (PM) synchronous motors (surface and interior types) in the constant torque region with the help of cost-effective hall-effect sensors. This method requires no DC-link sensing, which is a mandatory matter in the conventional DTC drives, therefore it reduces the cost of a conventional DTC of a permanent magnet (PM) synchronous motor and also removes common problems including; resistance change effect, low speed and integration drift. Conventional DTC drives require at least one DC-link voltage sensor (or two on the motor terminals) and two current sensors because of the necessary estimation of position, speed, torque, and stator flux in the stationary reference frame. Unlike the conventional DTC drive, the proposed method uses the rotor reference frame because the rotor position is provided by the three hall-effect sensors and does not require expensive voltage sensors. Moreover, the proposed algorithm takes the acceleration and deceleration of the motor and torque disturbances into account to improve the speed and torque responses. The basic theory of operation for the proposed topology is presented. A mathematical model for the proposed DTC of the PMSM topology is developed. A simulation program written in MATLAB/SIMULINK?® is used to verify the basic operation (performance) of the proposed topology. The mathematical model is capable of simulating the steady-state, as well as dynamic response even under heavy load conditions (e.g. transient load torque at ramp up). It is believed that the proposed system offers a reliable and low-cost solution for the emerging market of DTC for PMSM drives. Finally the proposed drive, considering the constant torque region operation, is applied to the agitation part of a laundry washing machine (operating in constant torque region) for speed performance comparison with the current low-cost agitation cycle speed control technique used by washing machine companies around the world.

Ozturk, Salih Baris

2005-12-01T23:59:59.000Z

323

Flue-gas carbon capture on carbonaceous sorbents: Toward a low-cost multifunctional Carbon Filter for 'Green' energy producers  

SciTech Connect

A low-pressure Carbon Filter Process (patent pending) is proposed to capture carbon dioxide (CO{sub 2}) from flue gas. This filter is filled with a low-cost carbonaceous sorbent, such as activated carbon or charcoal, which has a high affinity (and, hence, high capacity) to CO{sub 2} but not to nitrogen (N{sub 2}). This, in turn, leads to a high CO{sub 2}/N{sub 2} selectivity, especially at low pressures. The Carbon Filter Process proposed in this work can recover at least 90% of flue-gas CO{sub 2} of 90%+ purity at a fraction of the cost normally associated with the conventional amine absorption process. The Carbon Filter Process requires neither expensive materials nor flue-gas compression or refrigeration, and it is easy to heat integrate with an existing or grassroots power plant without affecting the cost of the produced electricity too much. An abundant supply of low-cost CO{sub 2} from electricity producers is good news for enhanced oil recovery (EOR) and enhanced coal-bed methane recovery (ECBMR) operators, because it will lead to higher oil and gas recovery rates in an environmentally sensitive manner. A CO{sub 2}-rich mixture that contains some nitrogen is much less expensive to separate from flue-gas than pure CO{sub 2}; therefore, mixed CO{sub 2}/N{sub 2}-EOR and CO{sub 2}/N{sub 2}-ECBMR methods are proposed to maximize the overall carbon capture and utilization efficiency.

Radosz, M.; Hu, X.D.; Krutkramelis, K.; Shen, Y.Q. [University of Wyoming, Laramie, WY (United States)

2008-05-15T23:59:59.000Z

324

Low cost MCFC anodes  

DOE Green Energy (OSTI)

This paper outlines a project, funded under a DOE SBIR grant, which tested a potentially lower cost method of manufacturing MCFC stack anodes and evaluated the feasibility of using the technology in the existing M-C Power Corp. manufacturing facility. The procedure involves adding activator salts to the anode tape casting slurry with the Ni and Cr or Al powders. Two different processes occur during heat treatment in a reducing environment: sintering of the base Ni structure, and alloying or cementation of the Cr or Al powders. To determine whether it was cost-effective to implement the cementation alloying manufacturing process, the M-C Power manufacturing cost model was used to determine the impact of different material costs and processing parameters on total anode cost. Cost analysis included equipment expenditures and facility modifications required by the cementation alloying process.

Erickson, D.S.

1996-12-31T23:59:59.000Z

325

Feasibility of low-cost, high-volume production of silane and pyrolysis of silane to semiconductor-grade silicon. Quarterly progress report, April--June 1978. Low cost silicon solar array project  

DOE Green Energy (OSTI)

The purpose of the silane production program is to determine the feasibility and practicality of high-volume, low-cost production of silane (SiH/sub 4/) as an intermediate for obtaining solar-grade silicon metal. The process is based on the synthesis of SiH/sub 4/ by the catalytic disproportionation of chlorosilanes resulting from the reaction of hydrogen, metallurgical silicon, and silicon tetrachloride. The goal is to demonstrate the feasibility of a silane production cost of under $4.00/kg at a production rate of 1000 MT/year. The objective of the silicon production program is to establish the feasibility and cost of manufacturing semiconductor grade polycrystalline silicon through the pyrolysis of silane. The silane-to-silicon conversion is to be investigated in a fluid bed reactor and in a free space reactor. The process design program is to provide JPL with engineering and economic parameters for an experimental unit sized for 25 metric tons of silicon per year and a product-cost estimate for silicon produced on a scale of 100 metric tons per year. The purpose of the capacitive fluid-bed heating program is to explore the feasibility of using electrical capacitive heating to control the fluidized silicon-bed temperature during the heterogeneous decomposition of silane. In addition, a theoretical fluid-bed silicon deposition model was developed for use in the design of a fluid-bed pyrolysis scheme. Progress is reported in each of these areas. (WHK)

Breneman, W.C.; Farrier, E.G.; Morihara, H.

1978-01-01T23:59:59.000Z

326

Establishment of the feasibility of a process capable of low cost, high volume production of silane, SiH/sub 4/. Low cost silicon solar array project, Task I. Quarterly progress report, October 1, 1976--December 31, 1976  

DOE Green Energy (OSTI)

In the study of a process for the low cost, high volume production of silane (SiH/sub 4/) via redistribution of chlorohydrosilanes, the longevity and nature of the amine functional ion exchange resin catalyst was investigated. A modest decline in catalyst activity appears to be the result of loss of amine function during the initiallizing period. Long term activity remains quite high. In preparation for additional studies, deuterium labeled trichlorosilane is being prepared. The nominally 5 kg/day silane-from-dichlorosilane mini-plant has been constructed, leak tested and conditioned for start up. Approval for operation from a Pre-start Up Safety Review Team has been received in conjunction with an approved flameless method for venting silane. Laboratory studies of the hydrogenation of silicon tetrachloride co-product of the silane process are continuing along with the design of a mini-plant scale unit capable of pressurized operation. Preliminary design of a maxi-plant to integrate the entire process is also underway.

Breneman, W.C.; Mui, J.Y.P.

1977-01-01T23:59:59.000Z

327

A survey of potential low-cost concentrator concepts for use in low-temperature water detoxification  

DOE Green Energy (OSTI)

Several different concentrator concepts have been considered for use in the detoxification of chemically contaminated water. The reactions of interest are predominantly photocatalytic in nature and are driven by low concentrations (between 1 and 50 suns) of UV radiation in the 300- to 385-nm wavelength range. Optical performance characteristics of these concentrators are thus somewhat different compared to concentrators developed for industrial process heat and electrical energy production. Relaxed optical tolerances might lead to reductions in concentrator cost that, when integrated into overall field system cost, could make the solar-driven process competitive with current UV lamp technology. Aspects of the concentrator system that might realize cost reductions include the concentrating element, the support structure, the tracking and drive system, the manufacturing processes, and the installation procedures. Several ideals have been resurrected from earlier research in the Solar Thermal Program where the need for more stringent optical performance requirements led to a decline or even an end to further investigation. In light of this new application, the most promising of these ideas are presented, including a description and a discussion of the cost and performance trade-offs. In addition, the results of recent investigate research on several of these concepts will be presented. The concepts include a low-cost parabolic trough, the inflatable line-focus concentrator, and the holographic concentrator. 16 refs., 5 figs.

Wendelin, T.

1991-12-01T23:59:59.000Z

328

A Low Cost Immobilization Agent From an Invasive Marine Alga: Caulerpa racemosa var. cylindracea Biomass In Bovine Serum Albumin Immobilization  

E-Print Network (OSTI)

Objectives: Caulerpa racemosa var. cylindracea is a marine green alga which has been widely invading sublittoral ecosystem of the Mediterranean Sea since 1991. Inasmuch as there is no eradication method related to this species so far, use of the dried biomass of C.racemosa for immobilization of bovine serum albumin was studied in the present study. Materials and Methods: Caulerpa racemosa var. cylindracea was collected from Seferihisar ?zmir by SCUBA diving. Immobilization studies were done by using batch technique under different conditions concerning the determination of optimum temperature, ionic strength, pH and adsorbent dosage. Results: Optimum pH, ionic strength, temperature and amount of adsorbent dosage was found as 7 (pH), 50 mM, 25 0 C and 10 mg, respectively. Conclusion: According to results of this paper, dried and powdered form of Caulerpa racemosa var. cylindracea might be used in some biomolecule immobilization studies as a low cost immobilization agent. This paper proposes an alternative application of biomass of Caulerpa racemosa var. cylindracea after a possible eradication method which will be carried out in future.

Serum Albuminine; Ynelik D?k; Maliyetli Immobilizasyon Ajan?; Sevilay Cengiz; Levent Cavas; M. Kadir Yurdakoc; Levent Cavas

2008-01-01T23:59:59.000Z

329

Low Cost Sorbent for Capturing CO{sub 2} Emissions Generated by Existing Coal-fired Power Plants  

SciTech Connect

TDA Research, Inc. has developed a novel sorbent based post-combustion CO{sub 2} removal technology. This low cost sorbent can be regenerated with low-pressure (ca. 1 atm) superheated steam without temperature swing or pressure-swing. The isothermal and isobaric operation is a unique and advantageous feature of this process. The objective of this project was to demonstrate the technical and economic merit of this sorbent based CO{sub 2} capture approach. Through laboratory, bench-scale and field testing we demonstrated that this technology can effectively and efficiently capture CO{sub 2} produced at an existing pulverized coal power plants. TDA Research, Inc is developing both the solid sorbent and the process designed around that material. This project addresses the DOE Program Goal to develop a capture technology that can be added to an existing or new coal fired power plant, and can capture 90% of the CO{sub 2} produced with the lowest possible increase in the cost of energy. .

Elliott, Jeannine

2013-08-31T23:59:59.000Z

330

Opportunities for Low Cost Titanium in Reduced Fuel Consumption, Improved Emissions, and Enhanced Durability Heavy Duty Vehicles  

DOE Green Energy (OSTI)

The purpose of this study was to determine which components of heavy-duty highway vehicles are candidates for the substitution of titanium materials for current materials if the cost of those Ti components is very significantly reduced from current levels. The processes which could be used to produce those low cost components were also investigated. Heavy-duty highway vehicles are defined as all trucks and busses included in Classes 2C through 8. These include heavy pickups and vans above 8,500 lbs. GVWR, through highway tractor trailers. Class 8 is characterized as being a very cyclic market, with ''normal'' year volume, such as in 2000, of approximately 240,000 new vehicles. Classes 3-7 are less cyclic, with ''normal'' i.e., year 2000, volume totaling approximately 325,000 new vehicles. Classes 3-8 are powered about 88.5% by diesel engines, and Class 2C at very roughly 83% diesel. The engine portion of the study therefore focused on diesels. Vehicle production volumes were used in estimates of the market size for candidate components.

Kraft, E.H.

2002-07-22T23:59:59.000Z

331

Silicon Materials Task of the Low Cost Solar Array Project (Phase II). Effect of impurities and processing on silicon solar cells. Phase II. Summary and eleventh quarterly report  

DOE Green Energy (OSTI)

The effects of various processes, metal contaminants and contaminant-process interactions on the performance of terrestrial silicon solar cells were investigated. A variety of aspects including thermal treatments, crystal growth rate, base doping concentration (low resistivity), base doping type (n vs. p), grain boundary structure, and carbon/oxygen-metal interactions (float zone vs Czochralski growth) were studied. The effects of various metallic impurities were studied, introduced singly or in combination into Czochralski, float zone and polycrystalline silicon ingots and into silicon ribbons grown by the dendritic web process. The totality of the solar cell data (comprising over 4000 cells) indicate that impurity-induced performance loss is primarily due to reduction in base diffusion length. Based on this assumption an analytical model has been developed which predicts cell performance as a function of metal impurity content. The model has now been verified for p-base material by correlating the projected and measured performance of solar cells made on 19 ingots bearing multiple impurities.

Hopkins, R.H.; Davis, J.R.; Blais, P.D.; Rohatgi, A.; Rai-Choudhury, P.; Hanes, M.H.; McCormick, J.R.

1978-07-01T23:59:59.000Z

332

Feasibility of low-cost, high-volume production of silane and pyrolysis of silane to semiconductor-grade silicon. Low Cost Silicon Solar Array Project. Quarterly progress report, January--March 1978  

DOE Green Energy (OSTI)

The purpose of the silane production program is to determine the feasibility and practicality of high-volume, low-cost production of silane (SiH/sub 4/) as an intermediate for obtaining solar-grade silicon metal. The process is based on the synthesis of SiH/sub 4/ by the catalytic disproportionation of chlorosilanes resulting from the reaction of hydrogen, metallurgical silicon, and silicon tetrachloride. The goal is to demonstrate the feasibility of a silane production cost of under $4.00/kg at a production rate of 1000 MT/year. The objective of the silicon production program is to establish the viability and economic feasibility of manufacturing semiconductor-grade polycrystalline silicon through the pyrolysis of silane. The silane-to-silicon conversion is to be investigated in a fluid bed reactor and a free space reactor. The purpose of the process design program is to provide JPL with engineering and economic parameters for an experimental facility capable of producing 25 metric tons of silicon per year by the pyrolysis of silane gas. An ancillary purpose is to estimate the cost of silicon produced by the same process on a scale of 1000 metric tons per year. The capacitive fluid-bed heating program is exploring the feasibility of utilizing electrical capacitive heating to control the fluidized silicon bed temperature during the heterogeneous decomposition of silane. In addition, a theoretical fluid-bed silicon deposition model is being developed to be used in a design of a fluid-bed pyrolysis process scheme. Research progress is described in detail. (WHK)

Breneman, W.C.; Farrier, E.G.; Morihara, H.

1978-01-01T23:59:59.000Z

333

Feasibility of low-cost, high-volume production of silane and pyrolysis of silane to semiconductor-grade silicon. Low cost silicon solar array project. Quarterly progress report for July--September 1978  

DOE Green Energy (OSTI)

The project is divided into four tasks: silane production, silicon production, process design, and fluid-bed pyrolysis R and D. The purpose of the silane production task is to determine the feasibility and practicality of high-volume, low-cost production of silane (SiH/sub 4/) as an intermediate for obtaining solar-grade silicon metal. The process is based on the synthesis of SiH/sub 4/ by the catalytic disproportionation of chlorosilanes resulting from the reaction of hydrogen, metallurgical silicon, and silicon tetrachloride. The goal is to demonstrate the feasibility of a silane production cost of under $4.00/kg at a production rate of 1000 MT/year. The objective of the silicon production task is to establish the feasibility and cost of manufacturing semi-conductor grade polycrystalline silicon through the pyrolysis of silane (SiH/sub 4/). The silane-to-silicon conversion is to be investigated in a fluid bed reactor and in a free-space reactor. The process design task is to provide JPL with engineering and economic parameters for an experimental unit sized for 25 metric tons of silicon per year and a product-cost estimate for silicon produced on a scale of 1000 metric tons per year. The purpose of fluid-bed pyrolysis task is to explore the feasibility of using electrical capacitive heating to control the fluidized silicon-bed temperature during the heterogeneous decomposition of silane and to further explore the behavior of a fluid bed. These basic studies will form part of the information necessary to assess technical feasibility of the fluid-bed pyrolysis of silane. Status of these tasks are reported. (WHK)

Breneman, W.C.; Farrier, E.G.; Morihara, H.

1978-01-01T23:59:59.000Z

334

CargoNet: a low-cost micropower sensor node exploiting quasi-passive wakeup for adaptive asychronous monitoring of exceptional events  

Science Conference Proceedings (OSTI)

This paper describes CargoNet, a system of low-cost, micropower active sensor tags that seeks to bridge the current gap between wireless sensor networks and radio-frequency identification (RFID). CargoNet was aimed at applications in environmental monitoring ... Keywords: active RFID, micropower sensing, power management

Mateusz Malinowski; Matthew Moskwa; Mark Feldmeier; Mathew Laibowitz; Joseph A. Paradiso

2007-11-01T23:59:59.000Z

335

Development of New Low-Cost, High-Performance, PV Module Encapsulant/Packaging Materials: Final Technical Progress Report, 22 October 2002 - 15 November 2007  

DOE Green Energy (OSTI)

Report on objectives to work with U.S.-based PV module manufacturers (c-Si, a-Si, CIS, other thin films) to develop/qualify new low-cost, high-performance PV module encapsulant/packaging materials, and processes using the packaging materials.

Tucker, R.

2008-04-01T23:59:59.000Z

336

Low Cost Chemical Feedstocks Using an Improved and Energy Efficient Natural Gas Liquid (NGL) Removal Process, Final Technical Report  

SciTech Connect

The overall objective of this project is to develop a new low-cost and energy efficient Natural Gas Liquid (NGL) recovery process - through a combination of theoretical, bench-scale and pilot-scale testing - so that it could be offered to the natural gas industry for commercialization. The new process, known as the IROA process, is based on U.S. patent No. 6,553,784, which if commercialized, has the potential of achieving substantial energy savings compared to currently used cryogenic technology. When successfully developed, this technology will benefit the petrochemical industry, which uses NGL as feedstocks, and will also benefit other chemical industries that utilize gas-liquid separation and distillation under similar operating conditions. Specific goals and objectives of the overall program include: (i) collecting relevant physical property and Vapor Liquid Equilibrium (VLE) data for the design and evaluation of the new technology, (ii) solving critical R&D issues including the identification of suitable dehydration and NGL absorbing solvents, inhibiting corrosion, and specifying proper packing structure and materials, (iii) designing, construction and operation of bench and pilot-scale units to verify design performance, (iv) computer simulation of the process using commercial software simulation platforms such as Aspen-Plus and HYSYS, and (v) preparation of a commercialization plan and identification of industrial partners that are interested in utilizing the new technology. NGL is a collective term for C2+ hydrocarbons present in the natural gas. Historically, the commercial value of the separated NGL components has been greater than the thermal value of these liquids in the gas. The revenue derived from extracting NGLs is crucial to ensuring the overall profitability of the domestic natural gas production industry and therefore of ensuring a secure and reliable supply in the 48 contiguous states. However, rising natural gas prices have dramatically reduced the economic incentive to extract NGLs from domestically produced natural gas. Successful gas processors will be those who adopt technologies that are less energy intensive, have lower capital and operating costs and offer the flexibility to tailor the plant performance to maximize product revenue as market conditions change, while maintaining overall system efficiency. Presently, cryogenic turbo-expander technology is the dominant NGL recovery process and it is used throughout the world. This process is known to be highly energy intensive, as substantial energy is required to recompress the processed gas back to pipeline pressure. The purpose of this project is to develop a new NGL separation process that is flexible in terms of ethane rejection and can reduce energy consumption by 20-30% from current levels, particularly for ethane recoveries of less than 70%. The new process integrates the dehydration of the raw natural gas stream and the removal of NGLs in such a way that heat recovery is maximized and pressure losses are minimized so that high-value equipment such as the compressor, turbo-expander, and a separate dehydration unit are not required. GTI completed a techno-economic evaluation of the new process based on an Aspen-HYSYS simulation model. The evaluation incorporated purchased equipment cost estimates obtained from equipment suppliers and two different commercial software packages; namely, Aspen-Icarus and Preliminary Design and Quoting Service (PDQ$). For a 100 MMscfd gas processing plant, the annualized capital cost for the new technology was found to be about 10% lower than that of conventional technology for C2 recovery above 70% and about 40% lower than that of conventional technology for C2 recovery below 50%. It was also found that at around 40-50% C2 recovery (which is economically justifiable at the current natural gas prices), the energy cost to recover NGL using the new technology is about 50% of that of conventional cryogenic technology.

Meyer, Howard, S.; Lu, Yingzhong

2012-08-10T23:59:59.000Z

337

Development and Evaluation of Low-Cost Sorbents for Removal of Mercury Emissions from Coal Combustion Flue Gas  

Science Conference Proceedings (OSTI)

Determining how physical and chemical properties of sorbents affect vapor-phase mercury adsorption has led to potential approaches for tailoring the properties of sorbents for more effective mercury removal.

1998-10-12T23:59:59.000Z

338

Low-Cost Solar Array Project. Progress report 14, August 1979-December 1979 and proceedings of the 14th Project Integration Meeting  

DOE Green Energy (OSTI)

Progress made by the Low-Cost Solar Array Project during the period August through November 1979, is described. Progress on project analysis and integration; technology development in silicon material, large-area sheet silicon, and encapsulation; production process and equipment development; engineering, and operations, and the steps taken to integrate these efforts are detailed. A report on the Project Integration Meeting held December 5-6, 1979, including copies of the visual materials used, is presented.

Not Available

1980-01-01T23:59:59.000Z

339

Low-Cost Solar Array Project. Progress report 12, January-April 1979 and proceedings of the 12th Project Integration Meeting  

DOE Green Energy (OSTI)

This report describes progress made by the Low-Cost Solar Array Project during the period January through April 1979. It includes reports on project analysis and integration; technology development in silicon material, large-area sheet silicon, and encapsulation; production process and equipment development; engineering and operations, and a discussion of the steps taken to integrate these efforts. It includes a report on, and copies of viewgraphs presented at the Project Integration Meeting held April 4-5, 1979.

Not Available

1979-01-01T23:59:59.000Z

340

Development of low cost contacts to silicon solar cells. Final report, 15 October 1978-30 April 1980  

DOE Green Energy (OSTI)

A summary of work done on the development of a copper based contact system for silicon solar cells is presented. The work has proceeded in three phases: (1) Development of a copper based contact system using plated Pd-Cr-Cu. Good cells were made but cells degraded under low temperature (300/sup 0/C) heat treatments. (2) The degradation in Phase I was identified as copper migration into the cells junction region. A paper study was conducted to find a proper barrier to the copper migration problem. Nickel was identified as the best candidate barrier and this was verified in a heat treatment study using evaporated metal layers. (3) An electroless nickel solution was substituted for the electroless chrominum solution in the original process. Efforts were made to replace the palladium bath with an appropriate nickel layer, but these were unsuccessful. 150 cells using the Pd-Ni-Cu contact system were delivered to JPL. Also a cost study was made on the plating process to assess the chance of reaching 5 cents/watt.

Tanner, D.P.; Iles, P.A.

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Final Technical Progress Report: High-Efficiency Low-Cost Thin-Film GaAs Photovoltaic Module Development Program; July 14, 2010 - January 13, 2012  

DOE Green Energy (OSTI)

This is the final technical progress report of the High-Efficiency Low-Cost Thin-Film GaAs Photovoltaic Module Development Program. Alta Devices has successfully completed all milestones and deliverables established as part of the NREL PV incubator program. During the 18 months of this program, Alta has proven all key processes required to commercialize its solar module product. The incubator focus was on back end process steps directed at conversion of Alta's high quality solar film into high efficiency 1-sun PV modules. This report describes all program deliverables and the work behind each accomplishment.

Mattos, L.

2012-03-01T23:59:59.000Z

342

Final project report - CRADA with United Solar Technologies and Pacific Northwest Laboratory (PNL-021): Thin film materials for low-cost high performance solar concentrators  

DOE Green Energy (OSTI)

The objectives of this project were as follows: To develop and evaluate promising low-cost dielectric and polymer-protected thin-film reflective metal coatings to be applied to preformed continuously-curved solar reflector panels to enhance their solar reflectance, and to demonstrate protected solar reflective coatings on preformed solar concentrator panels. The opportunity for this project arose from a search by United Solar Technologies (UST) for organizations and facilities capable of applying reflective coatings to large preformed panels. PNL was identified as being uniquely qualified to participate in this collaborative project.

Martin, P.M.; Affinito, J.D.; Gross, M.E.; Bennett, W.D.

1995-03-01T23:59:59.000Z

343

Evaluation of selected chemical processes for production of low-cost silicon. Phase III. Eighteenth quarterly progress report, January 1-March 31, 1980  

DOE Green Energy (OSTI)

Progress during this report period was marked by the initial operation of the Process Development Unit at about 50% of design capacity with indications that many aspects of the facility operated satisfactorily. However, a downstream constriction, the cause of which is being isolated, led to termination of the run after one-half hour of operation. In the light of observations made during earlier start-up efforts, several modifications of equipment and technique were made for improved operation. Vacuum outgassing experiments (850 to 1100/sup 0/C, 1 to 256 h) were carried out on miniplant-produced granules containing 360 and 3900 ppMw of zinc in the deposited silicon. Treatment of the data so that it can be extrapolated to the expected product of the Experimental Process System Development Unit awaits development of an appropriate model.

Blocher, J.M. Jr.; Browning, M.F.

1980-05-15T23:59:59.000Z

344

Silicon materials task of the low cost solar array project (Phase III). Effect of impurities and processing on silicon solar cells. Fifteenth quarterly report, April-June 1979  

DOE Green Energy (OSTI)

The overall objective of this program is to define the effects of impurities, various thermochemical processes, and any impurity-process interactions on the performance of terrestrial silicon solar cells. The results of the study form a basis for silicon producers, wafer manufacturers, and cell fabricators to develop appropriate cost-benefit relationships for the use of less pure, less costly Solar Grade silicon. The first reported determinations of the segregation coefficients of tungsten, tantalum, and cobalt for the Czochralski pulling of silicon single crystals were performed. Sensitive neutron activation analysis was used to determine the metal impurity content of the silicon (C/sub S/) while atomic absorption was used to measure the metal content of the residual liquid (C/sub L/) from which the doped crystals were grown. Gettering of Ti-doped silicon wafers improves cell performance by 1 to 2% (absolute) for the highest temperatures and longest times. The measured profile for Ti centers formed after an 850/sup 0/C gettering operation was fitted by a mathematical expression for the out-diffusion of an impurity species. By means of cell performance data and the newly-measured segregation coefficients curves were computed to predict the variation in cell efficiency with impurity concentration for Mo, Ta, W, Nb, and Co, materials commonly employed in the construction of high temperature silicon processing equipment. Using data for second and third generation n-base ingots the cell performance curves were updated for single impurities in n-type silicon. Most impurities degrade n-base cells less than p-base devices. The effect is larges for Mo, Al, Mn, Ti, and V while Fe and Cr behave much the same in both types of solar cells. In contrast Ni and Cu both degrade n-base devices (apparently by a junction mechanism) more severely than p-base cells. (WHK)

Hopkins, R.H.; Davis, J.R.; Blais, P.D.; Rohatgi, A.; Campbell, R.B.; Rai-Choudhury, P.; Stapleton, R.E.; Mollenkopf, H.C.; McCormick, J.R.

1979-07-01T23:59:59.000Z

345

Innovative Approaches to Low Cost Module Manufacturing of String Ribbon Si PV Modules: Phase II, Annual Technical Progress Report, 1 April 2003--31 May 2004  

DOE Green Energy (OSTI)

This subcontract resulted in a number of important advances for Evergreen Solar Inc. Foremost amongst these is the production implementation of dual ribbon growth from a single crucible (Gemini) using the String Ribbon continuous ribbon technology. This project has resulted in the flattest ribbon and the highest yields and machine uptime ever seen at Evergreen Solar. This then has resulted in significantly lowered consumables costs and lower overall direct manufacturing costs. In addition, methods to control the as-grown surface of Gemini ribbon have permitted the usage of the so-called no-etch process that allows for direct transfer of as-grown ribbon to diffusion without any intermediate etching step. In-line diagnostics for Gemini were further developed--these included more accurate methods for measuring and controlling melt depth and more accurate means to measure and control ribbon thickness. Earlier in the project, the focus was on monolithic module development. With the Gemini advances described above, monolithic module work was brought to a close during this second year of the overall three year project. A significant advance in this technology was the development of a conductive adhesive in combination with Evergreen's proprietary backskin and encapsulant. 25-W size experimental monolithic modules have been tested and found to be able to withstand up to 1400 thermal cycles.

Hanoka, J. I.

2004-10-01T23:59:59.000Z

346

Phase 2 of the automated array assembly task of the low-cost silicon solar array project. Final report, 1 April 1979-31 March 1980  

DOE Green Energy (OSTI)

Several specific processing steps, as part of a total process sequence for manufacturing silicon solar cells, were studied during this contract. Ion implantation has been identified as the Motorola preferred process step for impurity doping. Unanalyzed beam ion implantation has been shown to have major cost advantages over analyzed beam implantation. Further, high quality cells have been fabricated using a high current unanalyzed beam. Mechanically masked plasma patterning of silicon nitride has been shown to be capable of forming fine lines on silicon surfaces with spacings between mask and substrate as great as 250 ..mu..m (10 mils). Extensive work was performed on advances in plated metallization. The need for the thick electroless palladium layer has been eliminated. Further, copper has been successfully utilized as a conductor layer, utilizing nickel as a barrier to copper diffusion into the silicon. Plasma etching of silicon for texturing and saw damage removal has been shown technically feasible, but not cost-effective compared to wet chemical etching techniques.

Coleman, M.G.; Pryor, R.A.; Sparks, T.G.; Legge, R.M.; Saltzman, D.L.

1980-01-01T23:59:59.000Z

347

Phase I of the automated array assembly task of the low cost silicon solar array project. Annual technical report. Motorola report No. 2258/4  

DOE Green Energy (OSTI)

Work performed to analyze, both technically and economically, the state of technology readiness for the automated production of solar cells and modules is compiled and reviewed critically. The long-term objective solar module characteristics include a selling price of less than $.50/peak watt and a mean-time-before-failure (MTBF) of 20 years in any terrestrial environment. While efficiency is important to attaining the cost goal, it is a most significant factor in array economics; accordingly, this program has stressed high efficiency, with a suggested cell goal of 15 percent. The analysis emphasized technical evaluation of individual process steps first, and then concentrated upon process sequences for making solar cells and modules. Further analysis was performed to yield a detailed cost study of individual process steps; this was applied to the cost analysis of potential process sequences. Potentially economical process sequences formed from process steps deemed to have high technical merit were then identified. Potentially promising technologies needing further development to achieve satisfactory maturity were then identified. It is concluded that, while specific areas of technology need advanced development and the source of silicon needs definition, no fundamentally new technology needs to be developed to permit manufacture of solar cells which will meet the 1985 LSSA Program cost goals.

Coleman, M.G.; Pryor, R.A.; Grenon, L.A.; Lesk, I.A.

1977-02-01T23:59:59.000Z

348

Low cost hydrogen/novel membranes technology for hydrogen separation from synthesis gas, Phase 1. Quarterly technical progress report for the period ending June 30, 1987  

DOE Green Energy (OSTI)

During this quarter, work continued on the development of high-flux palladium-silver membranes for the separation of hydrogen from carbon dioxide. Palladium-silver/poly(etherimide) composite membranes were prepared by a vacuum sputtering technique. The influence of different poly(etherimide) support membranes on the performance of palladium-silver membranes was investigated. All membranes tested showed a hydrogen/carbon dioxide selectivity lower than that of the uncoated poly(etherimide)/poly(dimethylsiloxane) membranes. This is probably due to damage of the skin layer of the asymmetric poly(etherimide) support membranes during the palladium-silver electron bombardment. Polysulfone/poly(dimethylsiloxane) / poly(ether-ester-amide) composite membranes were also prepared. Membrane samples consistently showed a carbon dioxide/hydrogen selectivity of 9 to 10 and a normalized carbon dioxide flux of 2 to 4 {times} 10{sup {minus}4} cm{sup 3} (STP)/cm{sup 2}{center_dot}sec{center_dot}cmHg. These are extremely good values, superior to any commercially available membranes for this separation. 2 figs., 4 tabs.

Not Available

1987-12-31T23:59:59.000Z

349

A Low-Cost Soft-Switched DC/DC Converter for Solid-Oxide Fuel Cells  

DOE Green Energy (OSTI)

A highly efficient DC to DC converter has been developed for low-voltage high-current solid oxide fuel cells. The newly developed 'V6' converter resembles what has been done in internal combustion engine that split into multiple cylinders to increase the output capacity without having to increase individual cell size and to smooth out the torque with interleaving operation. The development was started with topology overview to ensure that all the DC to DC converter circuits were included in the study. Efficiency models for different circuit topologies were established, and computer simulations were performed to determine the best candidate converter circuit. Through design optimization including topology selection, device selection, magnetic component design, thermal design, and digital controller design, a bench prototype rated 5-kW, with 20 to 50V input and 200/400V output was fabricated and tested. Efficiency goal of 97% was proven achievable through hardware experiment. This DC to DC converter was then modified in the later stage to converter 35 to 63 V input and 13.8 V output for automotive charging applications. The complete prototype was tested at Delphi with their solid oxide fuel cell test stand to verify the performance of the modified DC to DC converter. The output was tested up to 3-kW level, and the efficiency exceeded 97.5%. Multiple-phase interleaving operation design was proved to be reliable and ripple free at the output, which is desirable for the battery charging. Overall this is a very successful collaboration project between the SECA Core Technology Team and Industrial Team.

Jason Lai

2009-03-03T23:59:59.000Z

350

Development of Low Cost Membranes (Ta, Nb & Cellulose Acetate) for H{sub 2}/CO{sub 2} Separation in WGS Reactors  

SciTech Connect

The main aim of this work is to synthesize low temperature bimetallic nanocatalysts for Water Gas Shift reaction (WGS) for hydrogen production from CO and steam mixture; and develop low-cost metal (Nb/Ta)/ceramic membranes for H{sub 2} separation and Cellulose Acetate membranes for CO{sub 2} separation. Cu-Ni-Ce/alumina, Fe-Ni-Ce/alumina granular WGS catalysts incorporating metal oxide nanoparticles into alumina support were prepared using sol-gel/oil-drop methods. The catalysts were characterized by Powder X-ray Diffractometer (PXRD), Scanning Electron Microscope (SEM), Differential Thermal Analyzer (DTA), Thermal Gravitational Analyzer (TGA), and Brunauer, Emmett and Teller (BET) techniques. TGA shows sharp weight loss at approximately 215°C and DTA shows dehydration of metal hydroxides between 200°C and 250°C. The PXRD spectra show an increase in crystallinity as a result of heating to 1000°C, and indicating a fine dispersion of the metal oxide nanoparticles in alumina supports during the sol-gel synthesis and calcination at 450°C. BET analysis indicated a mesoporous structure of the granules with high surface area. A gas-phase dynamic flow reactor is used to optimize the reaction temperatures. A gas-phase batch reactor was used to obtain kinetic data and the parameters for maximum CO conversion. In Cu-Ni-Ce/alumina category, Cu(0%)Ni(10%)Ce(11%) was found to be the best WGS catalyst among six Low Temperature Shift (LTS) catalysts with optimum temperatures between 200-300?°C, while Ni(5%)Cu(5%)Ce(11%) was found to be the best among four High Temperature Shift (HTS) catalysts with optimum temperature between 350-400°C. In the Fe-Ni-Ce/alumina category catalysts, Fe(8%)Ni(0%)Ce(8%)/alumina and Fe(6%)Ni(2%)Ce(8%)/alumina catalysts showed optimum WGS reaction temperature below 150°C. All Ni(8-x%)Fe(x%)Ce(8%) had lower WGS reaction efficiencies compared to Ni(8-x%)Cu(x%)Ce(8%). Metal (Nb or Ta)/ceramic membranes for hydrogen separation from the WGS reaction gas products have been prepared using a) sputtering and b) aluminothermic techniques. A polyvinyl-glass permeability tester was used with a gas chromatograph (GC) for H{sub 2}/CO permeability testing. Nb films showed a higher permeability than Ta at a given disk porosity. The aluminothermically deposited membranes have higher H{sub 2} permeability compared to the sputtered films, and Nb-film coated disks showed lower H{sub 2} permeability than Ta-film. A three-stage prototype stainless steel reactor with integrated housing for 1) WGS reaction catalysts, 2) H{sub 2}/CO{sub 2} separation metal/ceramic or metal/asbestos membranes, and 3) CO/CO{sub 2} separation cellulose acetate /filter-paper membranes has been designed and tested to have capabilities to perform WGS reactions at temperatures up to 400°C and withstand gas pressures up to 15 bars. The cracking of ceramic disks and gas leaks were successfully prevented by replacing ceramic disks with asbestos sheets that can easily withstand 400°C. Kinetic studies of H{sub 2} and CO permeabilities were performed through the single and double layer Nb and Ta membranes. Cellulose acetate (CA) films with 25% triethyl citrate (TEC) as plasticizer were prepared for H{sub 2}/CO/CO{sub 2} gas separation with varying thickness of the films by acetone solutions at different concentrations and by dip-coating onto filter papers. The AFM analysis of the CA membrane showed that the uniform coating had fewer and smaller pores as the film thickness increased, and corroborated by gas permeability studies. The CO{sub 2} permeability has decreased faster than CO permeability with the CA/TEC membrane thickness, and findings support that the CA membrane could be used to entrap CO{sub 2}. Several CA/TEC membranes were also staked to increase the separation efficiency. Positron Lifetime Spectroscopy (PLS) was used to estimate the micro-porosity (pore size and concentration) and fractional free volume changes of CA/TEC films, and used to understand the variations observed in the CO{sub 2}/CO permeabilities.

Naidu Seetala; Upali Siriwardane

2011-06-30T23:59:59.000Z

351

Light-Weight, Single-Phase, Liquid-Cooled Cold Plate (Presentation)  

SciTech Connect

This presentation, 'Light-Weight, Low-Cost, Single-Phase Liquid-Cooled Cold Plate,' directly addresses program goals of increased power density, specific power, and lower cost of power electronics components through improved thermal management.

Narumanchi, S.

2013-07-01T23:59:59.000Z

352

Development of a Low-Cost 3-10 kW Tubular SOFC Power System - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

7 7 FY 2012 Annual Progress Report DOE Hydrogen and Fuel Cells Program Norman Bessette Acumentrics Corporation 20 Southwest Park Westwood, MA 02090 Phone: (781) 461-8251; Email: nbessette@acumentrics.com DOE Managers HQ: Dimitrios Papageorgopoulos Phone: (202) 586-5463 Email: Dimitrios.Papageorgopoulos@ee.doe.gov GO: Reginald Tyler Phone: (720) 356-1805 Email: Reginald.Tyler@go.doe.gov Contract Number: DE-FC36-03NT41838 Project Start Date: April 1, 2008 Project End Date: March 31, 2013 Fiscal Year (FY) 2012 Objectives The goal of the project is to develop a low-cost 3-10 kW solid oxide fuel cell (SOFC) power generator capable of meeting multiple market applications. This is accomplished by: Improving cell power and stability * Cost reduction of cell manufacturing

353

Low-cost manufacturing of the point focus concentrating module and its key component, the Fresnel lens. Final subcontract report, 31 January 1991--6 May 1991  

DOE Green Energy (OSTI)

Solar Kinetics, Inc. (SKI) has been developing point-focus concentrating PV modules since 1986. SKI is currently in position to manufacture between 200 to 600 kilowatts annually of the current design by a combination of manual and semi-automated methods. This report reviews the current status of module manufacture and specifies the required approach to achieve a high-volume manufacturing capability and low cost. The approach taken will include process development concurrent with module design for automated manufacturing. The current effort reviews the major manufacturing costs and identifies components and processes whose improvements would produce the greatest effect on manufacturability and cost reduction. The Fresnel lens is one such key component. Investigating specific alternative manufacturing methods and sources has substantially reduced the lens costs and has exceeded the DOE cost-reduction goals. 15 refs.

Saifee, T.; Konnerth, A. III [Solar Kinetics, Inc., Dallas, TX (United States)

1991-11-01T23:59:59.000Z

354

Design of an Actinide Burning, Lead or Lead-Bismuth Cooled Reactor that Produces Low Cost Electricity FY-01 Annual Report, October 2001  

SciTech Connect

The purpose of this collaborative Idaho National Engineering and Environmental Laboratory (INEEL) and Massachusetts Institute of Technology (MIT) Laboratory Directed Research and Development (LDRD) project is to investigate the suitability of lead or lead-bismuth cooled fast reactors for producing low-cost electricity as well as for actinide burning. The goal is to identify and analyze the key technical issues in core neutronics, materials, thermal-hydraulics, fuels, and economics associated with the development of this reactor concept. Work has been accomplished in four major areas of research: core neutronic design, plant engineering, material compatibility studies, and coolant activation. The publications derived from work on this project (since project inception) are listed in Appendix A.

Mac Donald, Philip Elsworth; Buongiorno, Jacopo; Davis, Cliff Bybee; Herring, James Stephen; Loewen, Eric Paul; Smolik, Galen Richard; Weaver, Kevan Dean; Todreas, N.

2001-10-01T23:59:59.000Z

355

Design of an Actinide Burning, Lead or Lead-Bismuth Cooled Reactor That Produces Low Cost Electricty - FY-02 Annual Report  

SciTech Connect

The purpose of this collaborative Idaho National Engineering and Environmental Laboratory (INEEL) and Massachusetts Institute of Technology (MIT) Laboratory Directed Research and Development (LDRD) project is to investigate the suitability of lead or lead-bismuth cooled fast reactors for producing low-cost electricity as well as for actinide burning. The goal is to identify and analyze the key technical issues in core neutronics, materials, thermal-hydraulics, fuels, and economics associated with the development of this reactor concept. Work has been accomplished in four major areas of research: core neutronic design, plant engineering, material compatibility studies, and coolant activation. The publications derived from work on this project (since project inception) are listed in Appendix A. This is the third in a series of Annual Reports for this project, the others are also listed in Appendix A as FY-00 and FY-01 Annual Reports.

Mac Donald, Philip Elsworth; Buongiorno, Jacopo

2002-10-01T23:59:59.000Z

356

LOW COST BIOHEATING OIL APPLICATION.  

SciTech Connect

The report describes primarily the results of combustion tests carried out with a soy methyl ester (SME) that can be considered as a biofuel that does not quite meet the ASTM D 6751-02 specifications for biodiesel. The tests were performed in a residential boiler and a commercial boiler. Blends of the SME in distillate fuel (home heating fuel or equivalently, ASTM No.2 fuel oil) were tested in both the boilers. Similar tests had been conducted in a previous project with ASTM biodiesel blends and hence provided a comparison. Blends of the SME in ASTM No.6 oil (residual oil) were also tested in the commercial boiler using a different burner. Physical properties of the blends (in both the petroleum based fuels) were also measured. It was found that the SME blends in the distillate burned, not surprisingly, similarly to biodiesel blends. Reductions in NOx with blending of the SME were the most significant finding as before with biodiesel blends. The blends in No.6 oil also showed reductions in NOx in the commercial boiler combustion tests, though levels with No.6 blends are higher than with No.2 blends as expected. A significant conclusion from the physical property tests was that even the blending of 10% SME with the No.6 oil caused a significant reduction in viscosity, which suggests a potential direction of application of such blends.

KRISHNA,C.R.

2003-05-01T23:59:59.000Z

357

Low Cost Solar Water Heater  

SciTech Connect

This project was directed by NREL to pursue development of an all polymer solar thermal collector. The proposed design utilized a dual sheet thermoform process to coincidentally form the absorber as well as the containment structure to support the glazing. It utilized ventilation to overcome stagnation degradation of the polymer materials.

William Bostic

2005-12-16T23:59:59.000Z

358

Overview and Low Cost Processing  

Science Conference Proceedings (OSTI)

Mar 4, 2013 ... The major reason that there is not more widespread use of titanium and its alloys is the high cost. Developments in reducing the cost of titanium...

359

Low-Cost Surge Counter  

Science Conference Proceedings (OSTI)

... feeding a capacitor or a battery will begin to fail; the other level is 2000 ... The anode gate resistor R, stabilizes the turn-on of the SCS and prevents ...

2013-05-17T23:59:59.000Z

360

Low Cost Emergency VAR Compensator  

Science Conference Proceedings (OSTI)

The barriers to commercialization of the Capacitor Bank Group Shorting (CAPS) concept were investigated in this study. Also, the application of mechanically switched CAPS systems was examined from the technical and cost points of view. In addition, a semiconductor (thyristor) switched or controlled CAPS arrangement was studied. Although only three utilities were surveyed in the market assessment part of the study, it was concluded that if there is a need for additional shunt compensation systems or a nee...

2000-11-08T23:59:59.000Z

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Low cost Image Transmission System  

SciTech Connect

Throughout the Department of Energy (DOE) complex, sites protect themselves with intrusion detection systems. Some of these systems have sensors in remote areas. These sensors frequently alarm -- not because they have detected a terrorist skulking around the area, but because they have detected a horse, or a dog, or a bush moving in the breeze. Even though the local security force is 99% sure there is no real threat, they must assess each of these nuisance or false alarms. Generally, the procedure consists of dispatching an inspector to drive to the area and make an assessment. This is expensive in terms of manpower and the assessment is not timely. Often, by the time the inspector arrives, the cause of the alarm has vanished. A television camera placed to view the area protected by the sensor could be used to help in this assessment, but this requires the installation of high-quality cable, optical fiber, or a microwave link. Further, to be of use at the present time, the site must have had the foresight to have installed these facilities in the past and have them ready for use now. What is needed is a device to place between the television camera and a modem connecting to a low-bandwidth channel such as radio or a telephone line. This paper discusses the development of such a device: an Image Transmission System, or ITS.

Skogmo, D.

1994-06-01T23:59:59.000Z

362

Robust Low-Cost Water-Gas Shift Membrane Reactor for High-Purity Hydrogen Production form Coal-Derived Syngas  

DOE Green Energy (OSTI)

This report details work performed in an effort to develop a low-cost, robust water gas shift membrane reactor to convert coal-derived syngas into high purity hydrogen. A sulfur- and halide-tolerant water gas shift catalyst and a sulfur-tolerant dense metallic hydrogen-permeable membrane were developed. The materials were integrated into a water gas shift membrane reactor in order to demonstrate the production of >99.97% pure hydrogen from a simulated coal-derived syngas stream containing 2000 ppm hydrogen sulfide. The objectives of the program were to (1) develop a contaminant-tolerant water gas shift catalyst that is able to achieve equilibrium carbon monoxide conversion at high space velocity and low steam to carbon monoxide ratio, (2) develop a contaminant-tolerant hydrogen-permeable membrane with a higher permeability than palladium, (3) demonstrate 1 L/h purified hydrogen production from coal-derived syngas in an integrated catalytic membrane reactor, and (4) conduct a cost analysis of the developed technology.

James Torkelson; Neng Ye; Zhijiang Li; Decio Coutinho; Mark Fokema

2008-05-31T23:59:59.000Z

363

Low Cost Solar Array Project. Task I. Silicon material. Gaseous melt replenishment system. Fifth quarterly progress report, 17 April-17 July 1980  

DOE Green Energy (OSTI)

The objective of this program is to develop an improved silicon production reactor with periodic batch delivery of product to either a casting or shotting process or through a liquid silicon transfer system directly to a crystal growth system. Progress is reported. The processes and equipment are scaled such that a modest investment can make available to the Czochralski crystal grower a low cost source of silicon. In addition, the smaller scale of operation means that the systems can be put into operation without large capital investments, guarantees of markets, etc. The chemical reactions are those in commercial usage now: deposition from a hydrogen - chlorosilane mixture. The major innovation is in reactor design which allows a high productivity of silicon. The reactor has been conservatively sized on the basis of epitaxial deposition rates. The conclusion of this calculation is that a reasonably sized system can produce rapidly enough to keep pace with either 10cm or 12cm diameter Czochralski crystal growth operating in a semi-continuous mode. (WHK)

Jewett, D.N.; Bates, H.E.; Hill, D.M.

1980-01-01T23:59:59.000Z

364

Evaluation of selected chemical processes for production of low-cost silicon. First quarterly progress report, October 9--December 15, 1975  

DOE Green Energy (OSTI)

The objective of this program is to evaluate, in the light of the latest available information and modern technology, the prospect for low cost solar silicon production by two processes which have yielded semiconductor-grade silicon commercially in the past, but whose development was curtailed by unfavorable market conditions in the early semiconductor industry. These processes are (1) zinc reduction of silicon tetrachloride and (2) thermal dissociation (or hydrogen reduction) of silicon tetraiodide. This report includes analyses of available thermodynamic data on both processes and predictions of equilibrium product yields over accessible ranges of process conditions. A parallel program of experimental work has been carried out to test the thermodynamic predictions and to evaluate process operability at several critical points. Preliminary results indicate that acceptable process yields and product structure can be obtained by zinc reduction of silicon tetrachloride in a fluidized-bed of seed particles when the zinc is fed to the bed as a vapor. Preliminary experimental results on the iodination of silicon dioxide/carbon mixtures confirm the thermodynamic predictions that temperatures in excess of 1400 C will produce potentially acceptable yields of silicon tetraiodide. (auth)

Blocher, J.M. Jr.; Browning, M.F.; Wilson, W.J.; Carmichael, D.C.

1976-01-08T23:59:59.000Z

365

Development of a low-temperature, low-cost, black liquid solar collector. Final report, September 12, 1977-October 31, 1978  

DOE Green Energy (OSTI)

Battelle's Columbus Laboratories (BCL) has developed an efficient, low-cost, low-temperature, nonconcentrating, liquid-heating solar collector suitable for use as a thermal energy source for heat pumps or other heating applications. The collector incorporates a black liquid heat transfer medium permitting solar radiation to be absorbed directly by the liquid. Based on detailed measurements of the spectral absorption properties on many black liquids, and on the results of computer analysis of collector performance, it has been shown that the black liquid collector concept has the potential of significantly improved performance compared with an unglazed (i.e., swimming pool type) black-absorber collector of comparable cost.On the other hand, it has the potential of significant cost savings compared with the single-glazed collector of comparable performance. Experimental data obtained on two black liquid collectors constructed during this project closely match the predicted curves obtained from a theoretical computer analysis. Results of the systems analysis studies have shown that the black liquid collector, when used as a heat source for a solar-assisted heat pump, has comparable performance to that of a single-glazed conventional collector but at considerably lower cost. Another important result is that currently available heat pump systems are not ideally matched or compatible with a solar-assisted system. A solar-assisted system will require design of heat pumps which can take advantage of the higher system coefficient of performance (COP) possible with a heat source at elevated temperatures.

Landstrom, D K; Talbert, S G; Stickford, Jr, G H; Fischer, R D; Hess, R E

1978-10-01T23:59:59.000Z

366

Evaluation of selected chemical processes for production of low-cost silicon. Third quarterly progress report, April 1, 1976--June 30, 1976  

DOE Green Energy (OSTI)

Based on the decision to concentrate on the fluidized-bed reduction of silicon tetrachloride as a candidate process for production of low-cost solar-grade silicon, work during the current quarter was directed toward: (1) evaluation of the economic effects of operating at Zn/SiCl/sub 4/ feed ratios other than the stoichiometric 2/1; (2) design, construction, and exploratory operation of the ''miniplant'' designed to ultimately yield over 200 g hr/sup -1/ silicon for runs of 4 to 6 hr duration. It was concluded that no significant economic advantages exist in operating at Zn/SiCl/sub 4/ ratios on either side of the stoichiometric 2/1. Further, if advantages in reaction kinetics, or in product form or quality can be obtained by off-stoichiometry operation, these advantages might be obtained at only a modest increase in product cost. During the current quarter, design criteria for the miniplant were established, equipment was designed and constructed, and a number of shakedown runs were made which led to equipment modifications for improved operability.

Blocher, J.M. Jr.; Browning, M.F.; Wilson, W.J.; Carmichael, D.C.

1976-07-06T23:59:59.000Z

367

Low-Cost, Fiber-Optic Hydrogen Gas Detector Using Guided-Wave, Surface-Plasmon Resonance in Chemochromic Thin Films  

DOE Green Energy (OSTI)

Low-cost, hydrogen-gas-leak detectors are needed for many hydrogen applications, such as hydrogen-fueled vehicles where several detectors may be required in different locations on each vehicle. A fiber-optic leak detector could be inherently safer than conventional detectors, because it would remove all detector electronics from the vicinity of potential leaks. It would also provide freedom from electromagnetic interference, a serious problem in fuel-cell-powered electric vehicles. This paper describes the design of a fiber-optic, surface-plasmon-resonance hydrogen detector, and efforts to make it more sensitive, selective, and durable. Chemochromic materials, such as tungsten oxide and certain Lanthanide hydrides, can reversibly react with hydrogen in air while exhibiting significant changes in their optical properties. Thin films of these materials applied to a sensor at the end of an optical fiber have been used to detect low concentrations of hydrogen gas in air. The coatings include a thin silver layer in which the surface plasmon is generated, a thin film of the chemochromic material, and a catalytic layer of palladium that facilitates the reaction with hydrogen. The film thickness is chosen to produce a guided-surface plasmon wave along the interface between the silver and the chemochromic material. A dichroic beam-splitter separates the reflected spectrum into a portion near the resonance and a portion away from the resonance, and directs these two portions to two separate photodiodes. The electronic ratio of these two signals cancels most of the fiber transmission noise and provides a stable hydrogen signal.

Benson, D. K.; Tracy, C. E.; Lee, S-H. (National Renewable Energy Laboratory); Hishmeh, G. A.; Haberman, D. P. (DCH Technologies, Valencia, CA); Ciszek, P. A. (Evergreen Solar, Waltham, MA)

1998-10-20T23:59:59.000Z

368

Thin films of gallium arsenide on low-cost substrates. Quarterly technical progress report No. 8 and topical report No. 3, April 2-July 1, 1978  

DOE Green Energy (OSTI)

The seventh quarter of work on the contract is summarized. The metalorganic chemical vapor deposition (MO-CVD) technique has been applied to the growth of thin films of GaAs and GaAlAs on inexpensive polycrystalline or amorphous substrate materials (primarily glasses and metals) for use in fabrication of large-area low-cost photovoltaic device structures. Trimethylgallium (TMG), arsine (AsH/sub 3/), and trimethylaluminum (TMAl) are mixed in appropriate concentrations at room temperature in the gaseous state and pyrolyzed at the substrate, which is heated in a vertical reactor chamber to temperatures of 725 to 750/sup 0/C, to produce the desired film composition and properties. The technical activities during the quarter were concentrated on (1) a continuing evaluation of various graphite materials as possible substrates for MO-CVD growith of the polycrystalline GaAs solar cells; (2) attempts to improve the quality (especially the grain size) of polycrystalline GaAs films on Mo sheet and Mo/glass substrates by using HCl vapor during the MO-CVD growith process; (3) further studies of the transport properties of polycrystalline GaAs films, wth emphasis on n-type films; (4) continuing investigations of the properties of p-n junctions in polycrystalline GaAs, with emphasis on the formation and properties of p/sup +//n/n/sup +/ deposited structures; and (5) assembling apparatus and establishing a suitable technique for producing TiO/sub 2/ layers for use as AR coatings on GaAs cells. Progress is reported. (WHK)

Ruth, R.P.; Dapkus, P.D.; Dupuis, R.D.; Johnson, R.E.; Manasevit, H.M.; Moudy, L.A.; Yang, J.J.; Yingling, R.D.

1978-07-01T23:59:59.000Z

369

The Progress on Low-Cost, High-Quality, High-Temperature Superconducting Tapes Deposited by the Combustion Chemical Vapor Deposition Process  

Science Conference Proceedings (OSTI)

The innovative Combustion Chemical Vapor Deposition (CCVD) process is a non-vacuum technique that is being investigated to enable next generation products in several application areas including high-temperature superconductors (HTS). In combination with the Rolling Assisted Biaxially Textured Substrate (RABiTS) technology, the CCVD process has significant promise to provide low-cost, high-quality lengths of YBCO coated conductor. Over 100 meter lengths of both Ni and Ni-W (3 at. Wt.%) substrates with a surface roughness of 12-18 nm were produced. The CCVD technology has been used to deposit both buffer layer coatings as well as YBCO superconducting layers. Buffer layer architecture of strontium titanate (SrTiO{sub 3}) and ceria (CeO{sub 2}) have been deposited by CCVD on textured nickel substrates and optimized to appropriate thicknesses and microstructures to provide templates for growing PLD YBCO with a J{sub c} of 1.1 MA/cm{sup 2} at 77 K and self-field. The CCVD buffer layers have been scaled to meter plus lengths with good epitaxial uniformity along the length. A short sample cut from one of the lengths enabled high critical current density PLD YBCO. Films of CCVD YBCO superconductors have been grown on single crystal substrates with critical current densities over 1 MA/cm{sup 2}. In addition, superconducting YBCO films with an I{sub c} of 60 A/cm-width (J{sub c} = 1.5 MA/cm{sup 2}) were grown on ORNL RABiTS (CeO{sub 2}/YSZ/Y{sub 2}O{sub 3}/Ni/Ni-3W) using CCVD process.

Shoup, S.S.; White, M.K.; Krebs, S.L.; Darnell, N.; King, A.C.; Mattox, D.S.; Campbell, I.H.; Marken, K.R.; Hong, S.; Czabaj, B.; Paranthaman, M.; Christen, H.M.; Zhai, H.-Y. Specht, E.

2008-06-24T23:59:59.000Z

370

Silicon materials task of the low-cost solar-array project. Effect of impurities and processing on silicon solar cells. Final report  

DOE Green Energy (OSTI)

The object of the program has been to investigate the effects of various processes, metal contaminants, and contaminant-process interactions on the properties of silicon and on the performance of terrestrial silicon solar cells. The study has encompassed topics such as thermochemical (gettering) treatments, base-doping concentration, base-doping type (n vs. p), grain boundary-impurity interaction in polycrystalline devices, and long-term effects of impurities and impurity impacts on high-efficiency cells, as well as a preliminary evaluation of some potential low-cost silicon materials. The effects have been studied of various metallic impurities, introduced singly or in combination into Czochralski, float zone, and polycrystalline silicon ingots and into silicon ribbons grown by the dendritic web process. The solar cell data indicate that impurity-induced performance loss is caused primarily by a reduction in base diffusion length. An analytical model based on this observation has been developed and verified experimentally for both n- and p-base material. Studies of polycrystalline ingots containing impurities indicate that solar cell behavior is species sensitive and that a fraction of the impurities are segregated to the grain boundaries. HCl and POCl gettering improve the performance of single-crystal solar cells containing Fe, Cr, and Ti. In contrast Mo-doped material is barely affected. The efficiencies of solar cells fabricated on impurity-doped wafers is lower when the front junction is formed by ion implantation than when conventional diffusion techniques are used. For most impurity-doped solar cells stability is expected for projected times beyond 20 years. Feedstock impurity concentrations below one part per million for elements like V, or 100 parts per million for more benign impurities like Cu or Ni, will be required.

Hopkins, R.H.; Davis, J.R.; Rohatgi, A.; Hanes, M.H.; Rai-Choudhury, P.; Mollenkopf, H.C.

1982-02-01T23:59:59.000Z

371

Energy Basics: Bio-Based Products  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

products, are not only made from renewable sources, but they also often require less energy to produce than petroleum-based ones. Researchers have discovered that the process for...

372

Accurate Liquid Water Path Retrieval from Low-Cost Microwave Radiometers Using Additional Information from a Lidar Ceilometer and Operational Forecast Models  

E-Print Network (OSTI)

, but their presence in the liquid rather than the ice phase can lead to shortwave flux changes of about 100 W m 2 (NWP). In most operational NWP models, production of rain by collision and coalescence is parameterized

Reading, University of

373

AvAilAble for licensing Production process for low-cost, long-life, high-energy anodes with five times the specific energy.  

E-Print Network (OSTI)

and Industries Electrodes used in batteries for Electric and plug-in hybrid electric vehicles; Portable times the specific energy. The Invention An advanced gas phase deposition method to make silicon

Kemner, Ken

374

Evaluation of selected chemical processes for production of low-cost silicon (Phase II). Silicon Material Task Low-Cost Silicon Solar Array Project. Eighth quarterly progress report, July 1, 1977--September 30, 1977. [Zinc vapor reduction of silicon tetrachloride in fluidized bed of seed particles  

DOE Green Energy (OSTI)

Progress is reported in the design of a large experimental facility for the preparation of high-purity silicon by the zinc vapor reduction of silicon tetrachloride in a fluidized bed of seed particles to form a free-flowing granular product. As of July 25, 1977, the capacity goal for the experimental facility was raised from 25 to 50 MT Si/year. Process flow diagrams and materials/energy flow sheets have been revised to conform to the higher capacity and a plant layout has been developed for locating the facility within an available structure. A unit-by-unit review of instrumentation and other requirements has been made, with the inclusion of those items in the flow diagrams and flow sheets. Alternative designs are presented for a silicon carbide-coated carbon-lined fluidized-bed reactor contained in hot-wall stainless steel, including alternative designs for zinc vaporizers based on detailed heat-transfer calculations. Conditions and equipment for the conversion of by-product chlorine to hypochlorite for use in the treatment of sewage effluent locally were defined. The logistics of 19 percent NaOH delivery and pick-up of 14 percent NaOCL was worked out and equipment suppliers were identified. Heat dissipation requirements for the fluidized bed, Zn/ZnCl/sub 2/ condenser, and SiCl/sub 4/ waste disposal sections were established. Resistivity and purity data were obtained for DuPont's silicon prepared by batchwise zinc reduction of SiCl/sub 4/. A preliminary safety review was made of the experimental facility. During the report period, the miniplant was operated to (1) provide 2.2 kg of product for JPL evaluation, (2) evaluate methods of product withdrawal, and (3) test three zinc vaporizer concepts. Results of the zinc vaporizer tests were consistent with concurrent heat-transfer calculations. An average value of approximately 450 Btu hr/sup -1/ ft/sup -2/ F/sup -1/ for heat transfer from graphite to boiling zinc (1 atm) was determined.

Blocher, J.M. Jr.; Browning, M.F.; Wilson, W.J.; Carmichael, D.C.

1977-10-20T23:59:59.000Z

375

Low-Cost Large-Scale PEM Electrolysis for Renewable Energy Storage - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

6 6 DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report Dr. Katherine Ayers (Primary Contact), Chris Capuano Proton Energy Systems d/b/a Proton OnSite 10 Technology Drive Wallingford, CT 06492 Phone: (203) 678-2190 Email: kayers@protononsite.com DOE Manager HQ: Erika Sutherland Phone: (202) 586-3152 Email: Erika.Sutherland@ee.doe.gov Contract Number: DE-SC0001338 Subcontractors: * 3M, Minneapolis, MN * University of Wyoming, Laramie, WY Project Start Date: June 19, 2010 (Phase 1) Project End Date: August 18, 2013 (with Phase 2 continuation) Fiscal Year (FY) 2012 Project Objectives Demonstrate optimal membrane electrode assembly * (MEA) efficiency through: Refinement of catalyst compositions based on -

376

Synthesis and characterization of GaN thin films deposited on different substrates using a low-cost electrochemical deposition technique  

Science Conference Proceedings (OSTI)

Gallium nitride GaN thin films were deposited on three different substrates; Si (111), Si (100) and ITO coated glass using electrochemical deposition technique at 20 Degree-Sign C. A mixture of gallium nitrate, ammonium nitrate was used as electrolyte. The deposited films were investigated at room temperature by a series of material characterization techniques, namely; scanning electron microscopy (SEM), EDX and X-ray diffraction (XRD). SEM images and EDX results indicated that the growth of GaN films varies according to the substrates. XRD analyses showed the presence of hexagonal wurtzite and cubic zinc blende GaN phases with the crystallite size around 18-29 nm.

Al-Heuseen, K.; Hashim, M. R. [Al-Balqa Applied University, Ajloun University College (Jordan); School of Physics, Universiti Sains Malaysia, 11800-Penang (Malaysia)

2012-09-06T23:59:59.000Z

377

Low Cost Thin Film Building-Integrated PV Systems: Cooperative Research and Development Final Report, CRADA Number CRD-07-239  

DOE Green Energy (OSTI)

In this CRADA, NREL's Silicon group members performed the following research activities: (1) investigation of the role of hydrogen in growth of a mixed-phase nc-Si:H/a-Si:H material; (2) role of hydrogen in light-induced degradation of a-Si:H and development of Staebler-Wronski effect resistive a-Si:H; and (3) performing characterizations of UniSolar's a-Si:H and nc-Si materials, with goal to help optimizing large-area uniformity and quality of the UniSolar's nanocrystalline Si:H.

Stradins, P.

2011-10-01T23:59:59.000Z

378

Innovative Approaches to Low-Cost Module Manufacturing of String Ribbon Si PV Modules; Final Subcontract Report, March 2002 - January 2005  

DOE Green Energy (OSTI)

As a result of this work, Evergreen Solar, Inc., is now poised to take String Ribbon technology to new heights. In the ribbon growth area, Project Gemini-the growth of dual ribbons from a single crucible-has reached or exceeded all the manufacturing goals set for it. This project grew from an R&D concept to a production pilot phase and finally to a full production phase, all within the span of this subcontract. A major aspect of the overall effort was the introduction of controls and instrumentation as in-line diagnostic tools. In the ribbon production area, the result has been a 12% increase in yields, a 10% increase in machine uptime, and the flattest ribbon ever grown at Evergreen. In the cell area, advances in process development and robotic handling of Gemini wafers have contributed, along with the advances in crystal growth, to a yield improvement of 6%. Particularly noteworthy in the cell area was the refinement of the no-etch process whereby the as-grown ribbon surface could be controlled sufficiently to allow this process to succeed as well as it has. This process obviates any need for wet chemistry or etching between ribbon growth and diffusion.

Hanoka, J. I.

2005-10-01T23:59:59.000Z

379

Module process optimization and device efficiency improvement for stable, low-cost, large-area, cadmium telluride-based photovoltaic module production  

DOE Green Energy (OSTI)

This report describes work under a three-year phased subcontract to develop CdS/CdTe devices and modules and to further improve the technology base at Photon Energy, Inc. (PEI) to better address the commercialization issues and objectives of the PEI and the US Department of Energy. During this reporting period we (1) achieved efficiencies of 12.7% on small area devices, (2) achieved 1-ft{sup 2} modules with over 8% aperture-area efficiency (and active area efficiencies up to {approximately}10%), (3) tested 4-ft{sup 2} modules at NREL at 23.1 (21.3) watts, normalized (6.3% efficiency), and (4) found no inherent stability problems with CdTe technology during life testing, at both NREL and PEI. 7 refs.

Albright, S.P.; Ackerman, B.; Chamberlin, R.R.; Jordan, J.F. (Photon Energy, Inc., El Paso, TX (United States))

1992-04-01T23:59:59.000Z

380

Innovative Approaches to Low Cost Module Manufacturing of String Ribbon Si PV Modules: First Annual Report, 27 September 2002--31 March 2003  

DOE Green Energy (OSTI)

This report describes Evergreen Solar, Inc., String Ribbon Si PV technology resulting in an advanced generation of crystalline silicon PV module manufacturing technology applied to a virtually continuous, fully integrated manufacturing line. General objectives for this first year (or Phase I) are listed here, followed by the principal accomplishments for each of these objectives: (1) scale-up of a production-worthy method for doping feedstock; (2) development of a multiple-ribbon growth system (Project Gemini); (3) development of wrap-around contacts for making monolithic modules; (4) accelerated testing of small-size (25 W) monolithic modules; (5) development of an in-line production machine to form solar cell contacts using Evergreen's unique contact printing technology.

Hanoka, J. I.

2004-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

PROJECT SELECTIONS FOR DOE PHASE III XLERATOR SMALL BUSINESS  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PROJECT SELECTIONS FOR DOE PHASE III XLERATOR SMALL BUSINESS PROJECT SELECTIONS FOR DOE PHASE III XLERATOR SMALL BUSINESS PROGRAM Biomass Technologies: Harvesting/Dewatering Technology for Algal Biofuels Renewable Algal Energy, LLC (Kingsport, Tenn.) - Algal Biodiesel via Innovative Harvesting and Aquaculture Systems - Renewable Algal Energy LLC, will leverage its experience in algal aquaculture, harvesting, and extraction, to demonstrate at small commercial-scale, improved, low cost, energy-efficient methods for harvesting and

382

Pilot-Scale Demonstration of a Novel, Low-Cost Oxygen Supply Process and its Integration with Oxy-Fuel Coal-Fired Boilers  

Science Conference Proceedings (OSTI)

In order to achieve DOE targets for carbon dioxide capture, it is crucial not only to develop process options that will generate and provide oxygen to the power cycle in a cost-effective manner compared to the conventional oxygen supply methods based on cryogenic air separation technology, but also to identify effective integration options for these new technologies into the power cycle with carbon dioxide capture. The Linde/BOC developed Ceramic Autothermal Recovery (CAR) process remains an interesting candidate to address both of these issues by the transfer of oxygen from the air to a recycled CO{sub 2} rich flue-gas stream in a cyclic process utilizing the high temperature sorption properties of perovskites. Good progress was made on this technology in this project, but significant challenges remain to be addressed before CAR oxygen production technology is ready for commercial exploitation. Phase 1 of the project was completed by the end of September 2008. The two-bed 0.7 tons/day O2 CAR process development unit (PDU) was installed adjacent to WRI's pilot scale coal combustion test facility (CTF). Start-up and operating sequences for the PDU were developed and cyclic operation of the CAR process demonstrated. Controlled low concentration methane addition allowed the beds to be heated up to operational temperature (800-900 C) and then held there during cyclic operation of the 2-bed CAR process, in this way overcoming unavoidable heat losses from the beds during steady state operation. The performance of the PDU was optimized as much as possible, but equipment limitations prevented the system from fully achieving its target performance. Design of the flue gas recirculation system to integrate CAR PDU with the CTF and the system was completed and integrated tests successfully performed at the end of the period. A detailed techno-economic analysis was made of the CAR process for supplying the oxygen in oxy-fuel combustion retrofit option using AEP's 450 MW Conesville, Ohio plant and contrasted with the cryogenic air separation option (ASU). Design of a large scale CAR unit was completed to support this techno-economic assessment. Based on the finding that the overall cost potential of the CAR technology compared to cryogenic ASU is nominal at current performance levels and that the risks related to both material and process scale up are still significant, the team recommended not to proceed to Phase 2. CAR process economics continue to look attractive if the original and still 'realistic' target oxygen capacities could be realized in practice. In order to achieve this end, a new fundamental materials development program would be needed. With the effective oxygen capacities of the current CAR materials there is, however, insufficient economic incentive to use this commercially unproven technology in oxy-fuel power plant applications in place of conventional ASUs. In addition, it is now clear that before a larger scale pilot demonstration of the CAR technology is made, a better understanding of the impact of flue-gas impurities on the CAR materials and of thermal transients in the beds is required.

Krish Krishnamurthy; Divy Acharya; Frank Fitch

2008-09-30T23:59:59.000Z

383

Development of a New Class of Low Cost, High Frequency Link Direct DC to AC Converters for Solid Oxide Fuel Cells (SOFC)  

SciTech Connect

This project proposes to design and develop a new class of power converters (direct DC to AC) to drastically improve performance and optimize the cost, size, weight and volume of the DC to AC converter in SOFC systems. The proposed topologies employ a high frequency link; direct DC to AC conversion approach. The direct DC to AC conversion approach is more efficient and operates without an intermediate dc-link stage. The absence of the dc-link, results in the elimination of bulky, aluminum electrolytic capacitors, which in turn leads to a reduction in the cost, volume, size and weight of the power electronic converter. The feasibility of two direct DC to AC converter topologies and their suitability to meet SECA objectives will be investigated. Laboratory proto-type converters (3-5kW) will be designed and tested in Phase-1. A detailed design trade-off study along with the test results will be available in the form of a report for the evaluation of SECA Industrial partners. This project proposes to develop a new and innovative power converter technology suitable for Solid Oxide Fuel Cell (SOFC) power systems in accordance with SECA objectives. The proposed fuel cell inverter (FCI) employs state of the art power electronic devices configured in two unique topologies to achieve direct conversion of DC power (24-48V) available from a SOFC to AC power (120/240V, 60Hz) suitable for utility interface and powering stand alone loads. The primary objective is to realize cost effective fuel cell converter, which operates under a wide input voltage range, and output load swings with high efficiency and improved reliability.

Prasad Enjeti; J.W. Howze

2003-12-01T23:59:59.000Z

384

November 2004 Phase 2 Progress Report  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

06 Phase 2 Progress Report: 06 Phase 2 Progress Report: 100kW LOW COST ENERGY STORAGE INVERTER Larry Rinehart Managing Director Rinehart Motion Systems, LLC This work is sponsored by US Department of Energy Grant DE-FG02- 03ER83768 Technical support and management provided by Sandia Labs R S M TM Rinehart Motion Systems, LLC 4/8/2010 DOE Grant DE-FG02-03ER83768 2 Background Rinehart Motion completed Phase 1 R&D activities July 2003 thru April 2004 * In Phase 1 we worked on the Inverter hardware, substantially reducing the size and cost of future Inverters Phase 2 activities began in July 2004 and were scheduled to end June 2006 (a 9 month no-cost extension has been granted) * Phase 2 work is focused on the Inverter / PCS system design The Phase 2 work plan includes: * Determine the scalability boundaries of the technology. Target down

385

Fabrication of large-volume, low-cost ceramic lanthanum halide scintillators for gamma ray detection : final report for DHS/DNDO/TRDD project TA-01-SL01.  

SciTech Connect

This project uses advanced ceramic processes to fabricate large, optical-quality, polycrystalline lanthanum halide scintillators to replace small single crystals produced by the conventional Bridgman growth method. The new approach not only removes the size constraint imposed by the growth method, but also offers the potential advantages of both reducing manufacturing cost and increasing production rate. The project goal is to fabricate dense lanthanum halide ceramics with a preferred crystal orientation by applying texture engineering and solid-state conversion to reduce the thermal mechanical stress in the ceramic and minimize scintillation light scattering at grain boundaries. Ultimately, this method could deliver the sought-after high sensitivity and <3% energy resolution at 662 keV of lanthanum halide scintillators and unleash their full potential for advanced gamma ray detection, enabling rapid identification of radioactive materials in a variety of practical applications. This report documents processing details from powder synthesis, seed particle growth, to final densification and texture development of cerium doped lanthanum bromide (LaBr{sub 3}:Ce{sup +3}) ceramics. This investigation demonstrated that: (1) A rapid, flexible, cost efficient synthesis method of anhydrous lanthanum halides and their solid solutions was developed. Several batches of ultrafine LaBr{sub 3}:Ce{sup +3} powder, free of oxyhalide, were produced by a rigorously controlled process. (2) Micron size ({approx} 5 {micro}m), platelet shape LaBr{sub 3} seed particles of high purity can be synthesized by a vapor phase transport process. (3) High aspect-ratio seed particles can be effectively aligned in the shear direction in the ceramic matrix, using a rotational shear-forming process. (4) Small size, highly translucent LaBr{sub 3} (0.25-inch diameter, 0.08-inch thick) samples were successfully fabricated by the equal channel angular consolidation process. (5) Large size, high density, translucent LaBr{sub 3} ceramics samples (3-inch diameter, > 1/8-inch thick) were fabricated by hot pressing, demonstrating the superior manufacturability of the ceramic approach over single crystal growth methods in terms of size capability and cost. (6) Despite all these advances, evidence has shown that LaBr{sub 3} is thermally unstable at temperatures required for the densification process. This is particularly true for material near the surface where lattice defects and color centers can be created as bromine becomes volatile at high temperatures. Consequently, after densification these samples made using chemically prepared ultrafine powders turned black. An additional thermal treatment in a flowing bromine condition proved able to reduce the darkness of the surface layer for these densified samples. These observations demonstrated that although finer ceramic powders are desirable for densification due to a stronger driving force from their large surface areas, the same desirable factor can lead to lattice defects and color centers when these powders are densified at higher temperatures where material near the surface becomes thermally unstable.

Boyle, Timothy J.; Ottley, Leigh Anna M.; Yang, Pin; Chen, Ching-Fong; Sanchez, Margaret R.; Bell, Nelson Simmons

2008-10-01T23:59:59.000Z

386

Development of mullite substrates and containers. Silicon sheet growth development for the Large Area Silicon Sheet Task of the Low-Cost Silicon Solar array Project. Quarterly report No. 1, October 6, 1977--November 14, 1977  

DOE Green Energy (OSTI)

Eight mullite bodies of varied compositions and microstructures have been prepared and are being characterized. These compositions will be submersed in molten silicon to study the impurity and surface effects. These various mullite materials will be analyzed for use as substrates for Honeywell Contract No. 954356, silicon on ceramic program and for use as a container of molten silicon. Low cost processing methods are being developed and evaluated for manufacturing large mullite sheets and mullite containers. At present, a state-of-the-art roll compaction process has shown promising initial results for substrates. However, these 0.5mm x 10cm x 1m are extremely fragile. Slip casting or iso pressing are anticipated for containers.

Wirth, D.G.; Sibold, J.D.

1977-12-05T23:59:59.000Z

387

Development of a low-cost integrated 20-kW ac solar tracking sub- array for grid-connected PV power system applications. Phase 1, Annual technical report, 11 July 1995--31 July 1996  

DOE Green Energy (OSTI)

The overall goal of this effort is to reduce the installed cost of utility scale grid connected photovoltaic power systems. The focus of the effort is on ``BOS`` (Balance-Of-System) component manufacturing technology, which essentially involves all PV power system engineering, manufacturing, assembly and construction tasks from the receipt of a PV module to the deliver of grid connected electricity.

Stern, M.; West, R.; Fourer, G.; Whalen, W.; Van Loo, M.; Duran, G. [Utility Power Group, Chatsworth, CA (United States)

1997-06-01T23:59:59.000Z

388

Heat exchanger-ingot casting/slicing process. Silicon sheet growth development for the Large Area Silicon Sheet Task of the Low Cost Silicon Solar Array Project. Final report, Phase I, November 20, 1975--November 20, 1977  

DOE Green Energy (OSTI)

The proof of concept for silicon casting by the Heat Exchanger Method has been established. One of the major hurdles of ingot cracking has been eliminated with the development of graded crucibles. Such crucibles are compatible with the casting process in that the integrity of the container is maintained at high temperature; however, during the cool-down cycle the crucible fails, thereby leaving a crack-free boule. The controlled growth, heat-flow and cool-down has yielded silicon with a high degree of single crystallinity. Even when the seed melted out, very large grains formed. Solar cell samples made from cast material have yielded conversion efficiency of over 9% (AMI). Representative characterizations of silicon grown has demonstrated a dislocation density of less than 100/cm/sup 2/ and a minority carrier diffusion length of 31 ..mu..m. Excellent surface quality, i.e., surface smoothness and 3 to 5 ..mu..m surface damage, was achieved by multiple wire slicing with fixed diamond abrasive. To achieve this, the silicon workpiece was non-synchronously rocked to produce a radial cut profile and minimize wire contact length. Wire wander was reduced an order of magnitude over the original results by supporting and guiding the wires with grooved rollers. Commercially available impregnated wires that were used failed due to diamond pull-out. Plating after impregnation or electroplating diamonds directly on the core minimized diamond pull-out and corresponding loss in cutting effectiveness. Tungsten wire was the best core material tested because of its high strength, high Young's modulus, and resistance to hydrogen embrittlement. A lighter and longer blade carriage can be used for slicing with wire. This will allow the blade carriage to be reciprocated more rapidly to increase the surface speed. A projected add-on cost calculation shows that these methods will yield silicon for solar cell applications within ERDA/JPL cost goals.

Schmid, F; Khattak, C P

1977-12-01T23:59:59.000Z

389

Silicon materials task of the Low-Cost Solar Array Project: Phase IV. Effects of impurities and processing on silicon solar cells. Twenty-first quarterly report, October-December 1980  

DOE Green Energy (OSTI)

The overall objective of this program is to define the effects of impurities, various thermochemical processes, and any impurity-process interactions upon the performance of terrestrial solar cells. The results of the study form a basis for silicon producers, wafer manufacturers, and cell fabricators to develop appropriate cost-benefit relationships for the use of less pure, less costly solar grade silicon. Cr is highly mobile in silicon even at temperatures as low as 600/sup 0/C. Contrasting with earlier data for Mo, Ti, and V, Cr concentrations vary from place to place in polycrystalline silicon wafers and the electrically-active Cr concentration in the polysilicon is more than an order of magnitude smaller than would be projected from single crystal impurity data. We hypothesize that Cr diffuses during ingot cooldown after groth, preferentially segregates to grain boundaries and becomes electrically deactivated. Both Al and Au introduce deep levels when grown into silicon crystals. Accelerated aging data from Ni-contaminated silicon imply that no significant impurity-induced cell performance reduction should be expected over a twenty-year device lifetime. Combined electrical bias and thermal stressing of silicon solar cells containing Nb, Fe, Cu, Ti, Cr, and Ag, respectively produces no performance loss after 100 hour exposures up to 225/sup 0/C. Ti and V, but not Mo, can be gettered from polycrystalline silicon by POCl/sub 3/ or HCl at temperatures of 1000 and 1100/sup 0/C.

Hopkins, R.H.; Hanes, M.H.; Davis, J.R.; Rohatgi, A.; Rai-Choudhury, P.; Mollenkopf, H.C.

1981-01-30T23:59:59.000Z

390

Silicon materials task of the Low-Cost Solar Array Project (Phase IV). Effects of impurities and processing on silicon solar cells. Twentieth quarterly report, July-September 1980  

DOE Green Energy (OSTI)

The overall objective of this program is to define the effects of impurities, various thermochemical processes and any impurity-process interactions upon the performance of terrestrial solar cells. The results of the study form a basis for silicon producers, wafer manufacturers, and cell fabricators to develop appropriate cost-benefit relationships for the use of less pure, less costly solar grade silicon. Spectral response measurements made on single crystal and polycrystalline silicon solar cells containing specific impurities agreed well with measured cell efficiencies. For polycrystalline cells it is shown that both grain boundaries and metallic impurities reduce carrier lifetime, resulting in reduced red response and reduced cell efficiency. Spectral response and DLTS measurements on chromium-doped polycrystalline silicon cells indicate an interaction between chromium and grain boundaries; the nature of this interaction is not yet understood. Measurements were made to evaluate possible long term effects of copper contamination on solar cell performance. Nine groups of cells, including a baseline cell group, are undergoing electrical/temperature tests to determine whether electric fields play a role in long term cell degradation. A mathematical model for impurity effects in high efficiency solar cells has been developed.

Hopkins, R.H.; Hanes, M.H.; Davis, J.R.; Rohatgi, A.; Rai-Choudhury, P.; Mollenkopf, H.C.

1980-11-14T23:59:59.000Z

391

Low-cost, Rapid DNA Sequencing Technique  

Sequencing DNA is crucial for future breakthroughs in biological and biomedical research. Until now, ... The nucleic acid strand transport

392

Low Cost Carbon Fiber.pub  

NLE Websites -- All DOE Office Websites (Extended Search)

Carbon Fiber Production Carbon Fiber Production Carbon Fiber Manufacturing Cost Modeling Oak Ridge National Laboratory managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract number DE-AC05-00OR22725 Research Areas Freight Flows Passenger Flows Supply Chain Efficiency Transportation: Energy Environment Safety Security Vehicle Technologies Research Brief Background The automotive industry has long been identified by carbon fiber manufacturers as a market with substantial growth potential. When manufactured with carbon fiber as opposed to traditional materials such as steel, automotive parts are able to achieve requisite levels of strength and stiffness with significantly less overall vehicle weight. These potential large reductions in vehicle weight, in turn, afford the

393

Low-Cost, Lightweight Solar Concentrators  

NLE Websites -- All DOE Office Websites (Extended Search)

Concentrators Concentrators California Institute of Technology/Jet Propulsion Laboratory Award Number:0595-1612 | April 18, 2013 | Ganapathi * Mirror module development has been approached with the goal of being applicable to all types of CSP systems * Several heliostat design options being considered to address driving requirements: * Facets that are compliant to winds > 35 mph * Deep structures for optimizing structural efficiency * Pointing accuracy achieved with mechanism design * Simple precision components * Easy on-site assembly with pre-fab components * Structural foam properties and strengthening trades being conducted to reduce overall costs with FEM models Goal: Typical costs for a concentrator (heliostat or parabolic dish) can range between 40-50% of the total costs. To meet SunShot

394

Low Cost, High Performance, 50-year Electrode  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

this ARPA-E project, Primus Power will develop an this ARPA-E project, Primus Power will develop an extremely durable, highly active, conductive, and inexpensive electrode for flow batteries. Flow batteries offer one of the most exciting opportunities for affordable grid storage, however electrodes are costly and are the single largest cost component in a well integrated design. Grid storage can yield numerous benefits in utility and customer- owned applications:  renewable firming  peak load reduction  load shifting  capital deferral  frequency regulation By incorporating volume production practices from the chlorine, filter media, and electroplating industries, Primus Power will effectively reduce electrode costs to exceed GRIDS cost targets while providing the durability essential for widespread grid-scale adoption.

395

Available Technologies: Low Cost, Simplified Manufacturing ...  

For Industry; For Researchers; Success Stories; About Us; Available Technologies. Browse By Category Advanced Materials; ... Processes using ceramic m ...

396

Low-cost process for hydrogen production  

DOE Patents (OSTI)

A method is provided for producing hydrogen and carbon black from hydrocarbon gases comprising mixing the hydrocarbon gases with a source of carbon and applying radiofrequency energy to the mixture. The hydrocarbon gases and the carbon can both be the products of gasification of coal, particularly the mild gasification of coal. A method is also provided for producing hydrogen an carbon monoxide by treating a mixture of hydrocarbon gases and steam with radio-frequency energy.

Cha, Chang Y. (Golden, CO); Bauer, Hans F. (Morgantown, WV); Grimes, Robert W. (Laramie, WY)

1993-01-01T23:59:59.000Z

397

Low-Cost Fiber Optic Pressure Sensor  

DOE Patents (OSTI)

The size and cost of fabricating fiber optic pressure sensors is reduced by fabricating the membrane of the sensor in a non-planar shape. The design of the sensors may be made in such a way that the non-planar membrane becomes a part of an air-tight cavity, so as to make the membrane resilient due to the air-cushion effect of the air-tight cavity. Such non-planar membranes are easier to make and attach.

Sheem, Sang K. (Pleasanton, CA)

2004-05-18T23:59:59.000Z

398

Low-Cost Fiber Optic Pressure Sensor  

DOE Patents (OSTI)

The size and cost of fabricating fiber optic pressure sensors is reduced by fabricating the membrane of the sensor in a non-planar shape. The design of the sensors may be made in such a way that the non-planar membrane becomes a part of an air-tight cavity, so as to make the membrane resilient due to the air-cushion effect of the air-tight cavity. Such non-planar membranes are easier to make and attach.

Sheem, Sang K. (Pleasanton, CA)

2003-07-22T23:59:59.000Z

399

Low cost electronic ultracapacitor interface technique to ...  

... drop in battery voltage. A current limiting circuit is connected in parallel with the diode for recharging the passive energy storage device.

400

Low Cost Powder Metal Turbine Components  

Science Conference Proceedings (OSTI)

Driving down processing costs on military and commercial aerospace ... studies using production alloys to turbine disk property results will be presented.

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Production of low-cost hydrogen  

DOE Green Energy (OSTI)

The overall objective of the proposed effort is to verify at the laboratory scale, the ability of the MTCI indirectly heated fluid-bed gasifier to economically produce a hydrogen-rich product gas from liquefaction by-product streams and from char produced in mild gasification processes. Specifically, the proposed effort is aimed at developing an experimental technology data base by defining the process characteristics that would be required for process integration into an overall liquefaction system. This would result in substantial decreases in the cost of hydrogen for the production of competitively priced coal-derived liquid fuels. During this quarter, shakedown tests of the reactor were completed. Subbituminous coals from Black Thunder mine and Eagle Butte mine were obtained for use in mild gasification to produce char. During the initial shakedown tests, it was determined that a new pulse combustor was needed. A pulse combustor with a large aerovalve was fabricated and tested. Three shakedown tests with limestone as the fluid-bed medium were carried out at temperature from 1450{degree}F to 1550{degree}F.

Not Available

1990-01-01T23:59:59.000Z

402

Low-cost process for hydrogen production  

DOE Patents (OSTI)

A method is provided for producing hydrogen and carbon black from hydrocarbon gases comprising mixing the hydrocarbon gases with a source of carbon and applying radiofrequency energy to the mixture. The hydrocarbon gases and the carbon can both be the products of gasification of coal, particularly the mild gasification of coal. A method is also provided for producing hydrogen and carbon monoxide by treating a mixture of hydrocarbon gases and steam with radio-frequency energy.

Cha, C.H.; Bauer, H.F.; Grimes, R.W.

1993-03-30T23:59:59.000Z

403

Low cost titanium--myth or reality  

Science Conference Proceedings (OSTI)

In 1998, approximately 57,000 tons of titanium metal was consumed in the form of mill products (1). Only about 5% of the 4 million tons of titanium minerals consumed each year is used to produce titanium metal, with the remainder primarily used to produce titanium dioxide pigment. Titanium metal production is primarily based on the direct chlorination of rutile to produce titanium tetrachloride, which is then reduced to metal using the Kroll magnesium reduction process. The use of titanium is tied to its high strength-to-weight ratio and corrosion resistance. Aerospace is the largest application for titanium, and titanium cost has prevented its use in non-aerospace applications including the automotive and heavy vehicle industries.

Turner, Paul C.; Hartman, Alan D.; Hansen, Jeffrey S.; Gerdemann, Stephen J.

2001-01-01T23:59:59.000Z

404

Available Technologies: Fast, Low Cost Method for ...  

Fuel cell or catalyst deposition supports; ... Filtration or reactive filtration structures for hot gas and liquid, water, air, food, chemicals;

405

Design of a low cost hydrostatic bearing  

E-Print Network (OSTI)

This thesis presents the design and manufacturing method for a new surface self compensating hydrostatic bearing. A lumped resistance model was used to analyze the performance of the bearing and provide guidance on laying ...

Wong, Anthony Raymond

2012-01-01T23:59:59.000Z

406

Low cost impulse compatible wideband antenna  

DOE Patents (OSTI)

An antenna apparatus and method for building the antenna is disclosed. Impulse signals travel through a feed point of the antenna with respect to a ground plane. A geometric fin structure is connected to the feed point, and through a termination resistance to the ground plane. A geometric ridge structure connected to the ground is positioned with respect to the fin in order to receive and radiate electromagnetic energy from the impulse signal at a predetermined impedance and over a predetermined set of frequencies. The fin and ridge can be either a wire or a planar surface. The fin and ridge may be disposed within a radiation cavity such as a horn. The radiation cavity is constructed of stamped and etched metal sheets bent and then soldered together. The fin and ridge are also formed from metal sheets or wires. The fin is attached to the feed point and then to the cavity through a termination resistance. The ridge is attached to the cavity and disposed with respect to the fin in order to achieve a particular set of antenna characteristics.

Rosenbury, Erwin T. (Livermore, CA); Burke, Gerald J. (Livermore, CA); Nelson, Scott D. (Tracy, CA); Stever, Robert D. (Lathrop, CA); Governo, George K. (Livermore, CA); Mullenhoff, Donald J. (Livermore, CA)

2002-01-01T23:59:59.000Z

407

Low Cost Carbon Fiber From Renewable Resources  

DOE Green Energy (OSTI)

The Department of Energy Partnership for a New Generation of Vehicles has shown that, by lowering overall weight, the use of carbon fiber composites could dramatically decrease domestic vehicle fuel consumption. For the automotive industry to benefit from carbon fiber technology, fiber production will need to be substantially increased and fiber price decreased to $7/kg. To achieve this cost objective, alternate precursors to pitch and polyacrylonitrile (PAN) are being investigated as possible carbon fiber feedstocks. Additionally, sufficient fiber to provide 10 to 100 kg for each of the 13 million cars and light trucks produced annually in the U.S. will require an increase of 5 to 50-fold in worldwide carbon fiber production. High-volume, renewable or recycled materials, including lignin, cellulosic fibers, routinely recycled petrochemical fibers, and blends of these components, appear attractive because the cost of these materials is inherently both low and insensitive to changes in petroleum price. Current studies have shown that a number of recycled and renewable polymers can be incorporated into melt-spun fibers attractive as carbon fiber feedstocks. Highly extrudable lignin blends have attractive yields and can be readily carbonized and graphitized. Examination of the physical structure and properties of carbonized and graphitized fibers indicates the feasibility of use in transportation composite applications.

Compere, A.L.

2001-08-10T23:59:59.000Z

408

LOW COST HEAT PUMP WATER HEATER (HPWH)  

Science Conference Proceedings (OSTI)

Water heating accounts for the second largest portion of residential building energy consumption, after space conditioning. Existing HPWH products are a technical success, with demonstrated energy savings of 50% or more compared with standard electric resistance water heaters. However, current HPWHs available on the market cost an average of $1000 or more, which is too expensive for significant market penetration. What is needed is a method to reduce the first cost of HPWHs, so that the payback period will be reduced from 8 years to a period short enough for the market to accept this technology. A second problem with most existing HPWH products is the reliability issue associated with the pump and water loop needed to circulate cool water from the storage tank to the HPWH condenser. Existing integral HPWHs have the condenser wrapped around the water tank and thus avoid the pump and circulation issues but require a relatively complex and expensive manufacturing process. A more straightforward potentially less costly approach to the integral, single package HPWH design is to insert the condenser directly into the storage tank, or immersed direct heat exchanger (IDX). Initial development of an IDX HPWH met technical performance goals, achieving measured efficiencies or energy factors (EF) in excess of 1.79. In comparison conventional electric water heaters (EWH) have EFs of about 0.9. However, the initial approach required a 2.5" hole on top of the tank for insertion of the condenser - much larger than the standard openings typically provided. Interactions with water heater manufacturers indicated that the non standard hole size would likely lead to increased manufacturing costs (at least initially) and largely eliminate any cost advantage of the IDX approach. Recently we have been evaluating an approach to allow use of a standard tank hole size for insertion of the IDX condenser. Laboratory tests of a prototype have yielded an EF of 2.02.

Mei, Vince C [ORNL; Baxter, Van D [ORNL

2006-01-01T23:59:59.000Z

409

Development of Low Cost Titanium Matrix Composite  

Science Conference Proceedings (OSTI)

Jul 1, 2004... excellent wear resistance for an alpha-beta Ti-6A1-4V matrix MMC comparable to that for Stellite No.6 a well known wear-resistant material.

410

Low Cost, High Performance, 50-year Electrode  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Layered metal mesh Various Electrodes Under Investigation Target 25MW75MWh Wind-Firming Battery More Compact Footprint 3-hour Grid Storage Solutions must be compact and...

411

Efficient, Low-cost Microchannel Heat Exchanger  

? Buildings (chillers, cooling towers, heat pump water heaters) ... ? Renewable energy (concentrated solar power, residential solar hot water,

412

Low Cost Powder Processing and Characterization  

Science Conference Proceedings (OSTI)

Mar 6, 2013 ... It was found that 0.3wt% of lubricant significantly improves the ... slag modified by different phosphorus-containing additive (calculated as...

413

www.praxair.com Low Cost Hydrogen  

E-Print Network (OSTI)

Natural Gas Compression Burner Air Blower Condensate to Drain Syngas Cooling & Water Separation Burner Alternatives Evaluation Reformer Pressure Syngas / Natural Gas Compression Materials of Construction Thermal

414

Development of Low-cost Hydrogen Sensors  

DOE Green Energy (OSTI)

This research was aimed at understanding and improving the speed and reproducibility of our resistive hydrogen sensor, along with complementary efforts in manufacturability and further design improvements. Maskworks were designed to allow for the printing and firing of multi-sensor layouts (15 per substrate) and a large batch of these sensors was produced using standard thick-film manufacturing lines. Piece-to-piece variations of both the as-made resistance and the response of these sensors to hydrogen were within acceptable tolerances, and the sensor design has now been released for commercial prototyping. Automated testing was begun in order to develop long-term performance data. Dynamic response of selected sensors was measured before and after exposures to methane, hydrogen sulfide, and carbon monoxide, in order to assess the effects of interference gases and surface poisoning. As expected, H{sub 2}S degrades the sensor somewhat, whereas CH{sub 4} and CO do not create significant interference when air is present.

Lauf, R.J.

2001-09-25T23:59:59.000Z

415

Assessment of Low Cost Novel Mercury Sorbents  

NLE Websites -- All DOE Office Websites (Extended Search)

Testing of Mercury Control Technologies Testing of Mercury Control Technologies for Coal-Fired Power Plants by Thomas J. Feeley, III 1. , Lynn A. Brickett 1. , B. Andrew O'Palko 1. , and James T. Murphy 2. 1. U.S. Department of Energy, National Energy Technology Laboratory 2. Science Applications International Corporation The U.S. Department of Energy/National Energy Technology Laboratory (DOE/NETL) is conducting a comprehensive research, development, and demonstration (RD&D) program directed at advancing the performance and economics of mercury control technologies for coal- fired power plants. The program also includes evaluating the fate of mercury in coal by-products and studying the transport and transformation of mercury in power plant plumes. This paper presents results from ongoing full-scale and slip-stream field testing of several mercury control

416

Unconditional security at a low cost  

E-Print Network (OSTI)

By simulating four quantum key distribution (QKD) experiments and analyzing one decoy-state QKD experiment, we compare two data post-processing schemes based on security against individual attack by L\\"{u}tkenhaus, and unconditional security analysis by Gottesman-Lo-L\\"{u}tkenhaus-Preskill. Our results show that these two schemes yield close performances. Since the Holy Grail of QKD is its unconditional security, we conclude that one is better off considering unconditional security, rather than restricting to individual attacks.

Xiongfeng Ma

2006-07-31T23:59:59.000Z

417

Design of a low cost bamboo footbridge  

E-Print Network (OSTI)

Nowadays the construction business, more so than other industries, is responsible most of the environmental issues that our society encounters. Given the increasing concern our impact on the environment, the need for new ...

Laroque, Paul (Paul Vivien Marc)

2007-01-01T23:59:59.000Z

418

Cummins Power Generation SECA Phase 1  

DOE Green Energy (OSTI)

The following report documents the progress of the Cummins Power Generation (CPG) SECA Phase 1 SOFC development and final testing under the U.S. Department of Energy Solid State Energy Conversion Alliance (SECA) contract DE-FC26-01NT41244. This report overviews and summarizes CPG and partner research development leading to successful demonstration of the SECA Phase 1 objectives and significant progress towards SOFC commercialization. Significant Phase 1 Milestones: (1) Demonstrated: (a) Operation meeting Phase 1 requirements on commercial natural gas. (b) LPG and Natural Gas CPOX fuel reformers. (c) SOFC systems on dry CPOX reformate. (c) Steam reformed Natural Gas operation. (d) Successful start-up and shut-down of SOFC system without inert gas purge. (e) Utility of stack simulators as a tool for developing balance of plant systems. (2) Developed: (a) Low cost balance of plant concepts and compatible systems designs. (b) Identified low cost, high volume components for balance of plant systems. (c) Demonstrated high efficiency SOFC output power conditioning. (d) Demonstrated SOFC control strategies and tuning methods. The Phase 1 performance test was carried out at the Cummins Power Generation facility in Minneapolis, Minnesota starting on October 2, 2006. Performance testing was successfully completed on January 4, 2007 including the necessary steady-state, transient, efficiency, and peak power operation tests.

Charles Vesely

2007-08-17T23:59:59.000Z

419

Next-generation three-phase inverters. Phase one annual report, 1996  

DOE Green Energy (OSTI)

The PV-MaT 4A subcontract addresses the cost effective manufacture of PV related end-products. Advanced Energy Systems Inc. (AES Inc.) has undertaken NREL contract No. ZAF-4-14271-10, {open_quotes}Next Generation Three Phase Inverter{close_quotes}, to combine leading industry skill with state-of-the-art technologies to realize cutting-edge PV inverter related products. To this end, in phase one of the PV-MaT contract, AES Inc. has made significant inroads toward establishing low cost manufacture of an intelligent controller PV-hybrid product.

Wesley, A.; Wills, R. [Advanced Energy Systems Inc., Wilton, NH (United States)

1997-07-01T23:59:59.000Z

420

Slicing of silicon into sheet material. Silicon sheet growth development for the large area silicon sheet task of the Low Cost Silicon Solar Array Project. Fifth quarterly report, March 21, 1977--May 27, 1977  

DOE Green Energy (OSTI)

The multiblade slurry technique capable of slicing 10 cm ingot into wafers 0.25 mm thick with only 0.20 mm kerf loss and 98% yield has been demonstrated. The total silicon requirement represents an ingot to sheet conversion of 0.95 m/sup 2//kg. Full production slicing tests have demonstrated the cost of MS slicing to contribute $40 to $50/m/sup 2/, with ''best effort'' estimates for today's configuration to be $30 to $35/m/sup 2/. By reducing material cost, and increasing the specific capacity of a saw to slice 900 wafers simultaneously, the long-term cost of MS slicing is estimated to be less than $10/m/sup 2/. The conversion of ingot to sheet is shown to be the most valuable contribution of slicing technology. At today's ingot costs, and with the thin wafer, low kerf loss slicing techniques demonstrated, the silicon material represents 5 to 10 times the cost of the wafering process in finished silicon wafers. Increasing the number of blades used in MS slicing from 100 to 150 to 225 to 300 has resulted in a reduction of yield to 33 to 70% for thin slicing, or an increase in wafer thickness to 0.30 mm slices. The limitation is intrinsic misalignment of multiple blades. A technique to correct this condition is presented and forms a key element in low cost slicing. Analysis of blade material accuracy shows that straightness and flatness specifications can be relaxed. The success of the blade alignment technique will allow lower thickness accuracy requirements. The goal is to use blade materials 50% as costly as used presently, reducing the cost of this expendible material.

Holden, S.C.; Fleming, J.R.

1977-07-07T23:59:59.000Z

Note: This page contains sample records for the topic "low-cost bio-based phase" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Low Cost Ceramics:Low Cost Ceramics: Applications in Water FiltrationApplications in Water Filtration  

E-Print Network (OSTI)

Filtration and Building Insulationand Building Insulation Kyle Carlson (U. of IowaKyle Carlson (U. of Iowa ResultsResults II. BuildingII. Building Material/InsulationMaterial/Insulation MotivationMotivation Theory

Petta, Jason

422

Bio-Based Nanocomposites Formed by Nanoparticle-Catalyzed ...  

Science Conference Proceedings (OSTI)

An Electron Microscopy Study of Nanoscale Surface and Sub-Surface ... Fabrication and Characterization of Super Strong Cellulose Nanowhisker Paper.

423

A Bio-Based Fuel Cell for Distributed Energy Generation  

DOE Green Energy (OSTI)

The technology we propose consists primarily of an improved design for increasing the energy density of a certain class of bio-fuel cell (BFC). The BFCs we consider are those which harvest electrons produced by microorganisms during their metabolism of organic substrates (e.g. glucose, acetate). We estimate that our technology will significantly enhance power production (per unit volume) of these BFCs, to the point where they could be employed as stand-alone systems for distributed energy generation.

Anthony Terrinoni; Sean Gifford

2008-06-30T23:59:59.000Z

424

Reactive Distillation for Esterification of Bio-based Organic Acids  

DOE Green Energy (OSTI)

The following is the final report of the three year research program to convert organic acids to their ethyl esters using reactive distillation. This report details the complete technical activities of research completed at Michigan State University for the period of October 1, 2003 to September 30, 2006, covering both reactive distillation research and development and the underlying thermodynamic and kinetic data required for successful and rigorous design of reactive distillation esterification processes. Specifically, this project has led to the development of economical, technically viable processes for ethyl lactate, triethyl citrate and diethyl succinate production, and on a larger scale has added to the overall body of knowledge on applying fermentation based organic acids as platform chemicals in the emerging biorefinery. Organic acid esters constitute an attractive class of biorenewable chemicals that are made from corn or other renewable biomass carbohydrate feedstocks and replace analogous petroleum-based compounds, thus lessening U.S. dependence on foreign petroleum and enhancing overall biorefinery viability through production of value-added chemicals in parallel with biofuels production. Further, many of these ester products are candidates for fuel (particularly biodiesel) components, and thus will serve dual roles as both industrial chemicals and fuel enhancers in the emerging bioeconomy. The technical report from MSU is organized around the ethyl esters of four important biorenewables-based acids: lactic acid, citric acid, succinic acid, and propionic acid. Literature background on esterification and reactive distillation has been provided in Section One. Work on lactic acid is covered in Sections Two through Five, citric acid esterification in Sections Six and Seven, succinic acid in Section Eight, and propionic acid in Section Nine. Section Ten covers modeling of ester and organic acid vapor pressure properties using the SPEAD (Step Potential Equilibrium and Dynamics) method.

Fields, Nathan; Miller, Dennis J.; Asthana, Navinchandra S.; Kolah, Aspi K.; Vu, Dung; Lira, Carl T.

2008-09-23T23:59:59.000Z

425

Building Technologies Office: Bio-based Thermochromic Intelligent...  

NLE Websites -- All DOE Office Websites (Extended Search)

Buildings News Building Technologies Office Announces 3 Million to Advance Building Automation Software Solutions in Small to Medium-Sized Commercial Buildings March 29,...

426

Bio-based Deicing/Anti-Icing Fluids  

This invention relates in general to compositions to remove ice, snow and/or frost ("frozen precipitation") from surfaces and/or to prevent ice from forming on surfaces, and in particular to deicing/anti-icing fluids.

427

Development of a process for high capacity arc heater production of silicon for solar arrays. Low-cost solar array project, silicon materials task. Quarterly technical report, January--March 1978  

DOE Green Energy (OSTI)

A program has been established at Westinghouse to develop a high temperature silicon production process using existing electric arc heater technology. Silicon tetrachloride and a reductant will be injected into an arc heated mixture of hydrogen and argon. Under these high temperature conditions, a very rapid reaction is expected to occur and proceed essentially to completion, yielding silicon and gaseous sodium chloride. Techniques for high temperature separation and collection of the molten silicon will be developed using standard engineering approaches, and the salt vapor will later be electrolytically separated into its elemental constituents for recycle. Preliminary technical evaluations and economic projections indicate not only that this process appears to be feasible, but that it also has the advantages of rapid, high capacity production of good quality molten silicon at a nominal cost. The program consists of a four-phase effort directed to the development and implementation of this technology. The initial phase of the program, Phase I, was an eleven-month study funded by JPL which was completed in September, 1977. Phase I was defined as a comprehensive feasibility and engineering review of the reaction process, and a formulation of the design for a test system to experimentally verify the high temperature reaction. Phase II, currently underway, involves a multi-task approach including (1) a detailed engineering analysis of the entire process; (2) design, fabrication, and assembly of the experimental system; (3) experimental testing of the reduction reaction to produce silicon and (4) complementary research programs to augment the experimental system design. The Phase II effort was initiated in October, 1977, and work is described in detail on the various stages of this effort.

Reed, W.H.

1978-01-01T23:59:59.000Z

428

Phase Stability, Phase Transformations, and Reactive Phase ...  

Science Conference Proceedings (OSTI)

Jul 31, 2012 ... New Phase in Stoichiometric Cu6Sn5 and Effect of Ni Addition on Phase Stabilization in Wide Temperature Range Optical Properties of...

429

Phase Diagrams  

Science Conference Proceedings (OSTI)

Mar 7, 2013 ... Computational Thermodynamics and Kinetics: Phase Diagrams ... TMS: Alloy Phases Committee, TMS: Chemistry and Physics of Materials...

430

Low Silicon Solar Array Project. Feasibility of low-cost, high-volume production of silane and pyrolysis of silane to semiconductor-grade silicon. Quarterly progress report, October-December 1978  

DOE Green Energy (OSTI)

Research on silane production in a hydrogenation reactor is described. The kinetics and chemical equilibrium for the liquid phase disproportionation of H/sub 2/SiCl/sub 4/ and HSiCl/sub 3/ were studied and results are presented and discussed. Status of the studies on the feasibility and cost of manufacturing semiconductor grade polycrystalline silicon by the pyrolysis of silane in a fluid bed reactor and in a free space reactor is reported. Process design, the waste disposal system, and equipment specifications for the fluid bed pyrolysis of silane for silicon production are described. (WHK)

Breneman, W.C.; Farrier, E.G.; Morihara, H.

1978-01-01T23:59:59.000Z

431

Silicon materials task of the Low Cost Silicon Solar Array Project (Part 2). Fifth quarterly report and summary, 1 October 1976--31 December 1976. [Definition of purity requirements  

DOE Green Energy (OSTI)

The objective of this program is to develop and define purity requirements for Solar Grade Silicon by exploring the effects of metal impurities on the performance of terrestrial silicon solar cells. The first phase of this effort is now completed. Fifty-two Czochralski ingots and forty-four dendritic web specimens have been grown, chemically analyzed, sampled, and tested for OCD and PCD lifetime and solar cell performance. The results of this study, compiled with much of the experimental data, are intended both as a summary of the work and as a reference for metal impurity effects on silicon solar cells.

Hopkins, R.H.; Davis, J.R.; Rai-Choudhury, P.; Blais, P.D.; McHugh, J.P.; Seidensticker, R.G.; McCormick, J.R.

1977-01-01T23:59:59.000Z

432

Development of a process for high capacity arc heater production of silicon for solar arrays. Low Cost Silicon Solar Array Project, Silicon Materials Task. Quarterly technical report, October--December 1977  

DOE Green Energy (OSTI)

A program has been established at Westinghouse to develop a high temperature silicon production process using existing electric arc heater technology. Silicon tetrachloride and a reductant will be injected into an arc heated mixture of hydrogen and argon. Under these high temperature conditions, a very rapid reaction is expected to occur and proceed essentially to completion, yielding silicon and gaseous sodium chloride. Techniques for high temperature separation and collection of the molten silicon will be developed using standard engineering approaches, and the salt vapor will later be electrolytically separated into its elemental constituents for recycle. While the overall program objective is to produce 1000 metric tons of high quality silicon per year on a continuous basis, Phase I was defined as a comprehensive feasibility and engineering review of the reaction process, and a formulation of the design for a test system to experimentally verify the high temperature reaction. Phase II, currently underway, involves a multi-task approach including (1) a detailed engineering analysis of the entire process; (2) design, fabrication, and assembly of the experimental system; (3) experimental testing of the reduction reaction to produce silicon; and (4) complementary research programs to augment the experimental system design. Progress in each of these areas is detailed.

Reed, W.H.

1977-01-01T23:59:59.000Z

433

Module process optimization and device efficiency improvement for stable, low-cost, large-area, cadmium telluride-based photovoltaic module production. Annual subcontract report, 1 July 1990--31 December 1991  

DOE Green Energy (OSTI)

This report describes work under a three-year phased subcontract to develop CdS/CdTe devices and modules and to further improve the technology base at Photon Energy, Inc. (PEI) to better address the commercialization issues and objectives of the PEI and the US Department of Energy. During this reporting period we (1) achieved efficiencies of 12.7% on small area devices, (2) achieved 1-ft{sup 2} modules with over 8% aperture-area efficiency (and active area efficiencies up to {approximately}10%), (3) tested 4-ft{sup 2} modules at NREL at 23.1 (21.3) watts, normalized (6.3% efficiency), and (4) found no inherent stability problems with CdTe technology during life testing, at both NREL and PEI. 7 refs.

Albright, S.P.; Ackerman, B.; Chamberlin, R.R.; Jordan, J.F. [Photon Energy, Inc., El Paso, TX (United States)

1992-04-01T23:59:59.000Z

434

Module process optimization and device efficiency improvement for stable, low-cost, large-area, cadmium telluride-based photovoltaic module production. Final subcontract report, 1 July 1990--30 April 1994  

DOE Green Energy (OSTI)

This report describes work performed under a three-phase subcontract. The objectives of the program include (1) achievement of active-area efficiencies of greater than 14% on small cells; (2) achievement of aperture-area efficiencies of greater than 13% on 0.09-m{sup 2} (1 ft{sup 2}) modules; (3) achievement of aperture-area efficiencies of greater than 12.5% on 0.37-m{sup 2} (4 ft{sup 2}) modules; and achievement of greater than 20-year module life (based on life testing extrapolations) with no greater than 10% efficiency degradation. The results obtained and described herein include the following: (1) efficiencies of 12.7% were achieved on small-area devices; (2) 0.09-m{sup 2} (1 ft{sup 2}) modules achieved greater than 8% aperture-area efficiency, but work for further efficiency improvement was redirected toward the 0.37-M{sup 2} (4 if) modules; (3) 0.37-m{sup 2} (4 ft{sup 2}) modules achieved 26.5-W output, which calculates to 8.0% aperture-area efficiency; (4) consistent prototype production was focused on and substantially achieved within Phase 2; (5) life testing at the National Renewable Energy Laboratory showed no inherent stability problems with the CdTe technology, and the accuracy of module measurement was satisfactorily resolved; and (6) a ``cradle-to-cradle`` recycling program was begun based upon the philosophy that the establishment of such mechanisms will be required to ensure maximum recapture and recycling of all manufacturing waste materials and/or modules returned from the field.

Albright, S.P.; Johnson, S.X. [Golden Photon, Inc., CO (United States)

1994-06-01T23:59:59.000Z

435

Phase five  

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Phase five Phase five 1663 Los Alamos science and technology magazine Latest Issue:November 2013 All Issues » submit Phase five Los Alamos physicists have conclusively demonstrated the existence of a new phase of matter. November 25, 2013 Phase five Scientists still have more to learn about the exotic physics of specialty materials. What makes the cuprates special? How about a new phase of matter. Ceramic metals known as cuprates have mystified physicists for decades. They exhibit a variety of distinct phases of matter, each with its own specific properties, including a phase bearing an exotic type of magnetism, a high-temperature superconducting phase, an ordinary metal phase, a poorly understood and weird metallic phase simply called a strange metal, and an equally poorly understood metallic phase known as the pseudogap. The

436

Continuous Czochralski growth: silicon sheet growth development of the large area silicon sheet task of the Low Cost Silicon Solar Array Project. Second annual progress report, October 1-September 30, 1979  

DOE Green Energy (OSTI)

The purpose of this program is to demonstrate the growth of at least 100 kilograms of mono crystalline ingot from one crucible by the Czochralski (CZ) method. The approach to the continuous growth process being pursued in this effort relies on conventional CZ technology combined with new equipment designs which allow repeated alternate cycles of crystal growth and hot melt replenishment by methods which are suitable for use in a high volume production facility. A Hamco Model CG2000 crystal grower was modified with a special chamber for the storage of a supply of polycrystalline silicon and a vacuum-tight isolation valve to permit retrieval of crystals and melt replenishment without contamination. A number of additional modifications to the facility have been completed in the program, and the process study phase is now under way, with a number of multi-ingot runs having been performed. It is the purpose of this contract extension to describe a program aimed at a more accurate cost analysis of the continuous growth of silicon into material and also an investigative program for the purpose of defining and solving problems which may hinder the development of continuous Czochralski growth. Progress is reported.

Lane, R.L.; Roberts, E.

1979-01-01T23:59:59.000Z

437

Silicon on ceramic process. Silicon sheet growth development for the Large-Area Silicon Sheet Task of the Low-Cost Silicon Solar Array Project. Annual report No. 2, September 17, 1976--September 19, 1977  

DOE Green Energy (OSTI)

The objective of this research program is to investigate the technical and economic feasibility of producing solar-cell-quality sheet silicon by coating one surface of carbonized ceramic substrates with a thin layer of large-grain polycrystalline silicon from the melt. In the past year significant progress was made in all areas of the program. The physical and chemical properties of the standard mullite refractory used for the majority of the coating runs (McDanel MV20 and Coors S1SI) have been characterized. A number of experimental compositions have been identified and procured from Coors. Characterization of the standard compositions revealed that the thermal expansion of mullite depends on both relative amounts of glass phase and on the impurity level in the glass. Since the thermal expansion in mullite exceeds that of silicon, the silicon coating should be in a state of compression. This was confirmed by x-ray measurements. After modifying and cleaning the dip-coating facility, silicon on ceramic (SOC) solar cells were fabricated which demonstrate that the SOC process can produce silicon of solar cell quality. SOC cells having 1 cm/sup 2/ active areas demonstrated measured conversion efficiencies as high as 7.2 percent. Typical open-ciruit voltages (V/sub oc/) and short-circuit current densities (J/sub sc/) were 0.51 volt and 20 mA/cm/sup 2/, respectively. Since the active surface of these solar cells is a highly reflective ''as-grown'' surface, one can expect improvement in J/sub sc/ after an anti-reflection (AR) coating is applied. Results of an economic analysis of the SOC process are presented.

Zook, J.D.; Heaps, J.D.; Maciolek, R.B.; Koepke, B.; Butter, C.D.; Schuldt, S.B.

1977-09-30T23:59:59.000Z

438

Colloidal spray method for low cost thin coating deposition  

DOE Patents (OSTI)

A dense or porous coating of material is deposited onto a substrate by forcing a colloidal suspension through an ultrasonic nebulizer and spraying a fine mist of particles in a carrier medium onto a sufficiently heated substrate. The spraying rate is essentially matched to the evaporation rate of the carrier liquid from the substrate to produce a coating that is uniformly distributed over the surface of the substrate. Following deposition to a sufficient coating thickness, a single sintering step may be used to produce a dense ceramic coating. Using this method, coatings ranging in thickness from about one to several hundred microns can be obtained. By using a plurality of compounds in the colloidal suspension, coatings of mixed composition can be obtained. By using a plurality of solutions and separate pumps and a single or multiple ultrasonic nebulizer(s), and varying the individual pumping rates and/or the concentrations of the solutions, a coating of mixed and discontinuously graded (e.g., stepped) or continuously graded layers may be obtained. This method is particularly useful for depositing ceramic coatings. Dense ceramic coating materials on porous substrates are useful in providing improved electrode performance in devices such as high power density solid oxide fuel cells. Dense ceramic coatings obtained by the invention are also useful for gas turbine blade coatings, sensors, steam electrolyzers, etc. The invention has general use in preparation of systems requiring durable and chemically resistant coatings, or coatings having other specific chemical or physical properties.

Pham, Ai-Quoc (San Jose, CA); Glass, Robert S. (Livermore, CA); Lee, Tae H. (Naperville, IL)

2002-01-01T23:59:59.000Z

439

Utilization of Composite Materials in Low Cost Motor Rehabilitation ...  

Science Conference Proceedings (OSTI)

Lignocellulosic-Based Carbon Fibers from Biofuel Production Wastes Magnesium Sheets Produced by Extrusion Magnetite Formation Observed with TEM on...

440

Development of a Low Cost Programmable Logic Controller  

Science Conference Proceedings (OSTI)

Some Brazilian regions have an agricultural vocation and are undergoing on a significant industrialization process, which is mainly caused by the installation of biofuel industries. Therefore, demand for agricultural and industrial automation will be ...

Marcel Seiji Kay, Fabio Iaione, Andrea Teresa Riccio Barbosa, Rodrigo Porfirio da Silva Sacchi, Valguima Victoria Viana Aguiar Odakura

2012-11-01T23:59:59.000Z

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