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Note: This page contains sample records for the topic "flexibility primarily affects" from the National Library of EnergyBeta (NLEBeta).
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1

Flexible Composite Radiation Detector  

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

Flexible Composite Radiation Detector Flexible Composite Radiation Detector Flexible Composite Radiation Detector A flexible composite scintillator was prepared by mixing fast, bright, dense rare-earth doped powdered oxyorthosilicate (such as LSO:Ce, LSO:Sm, and GSO:Ce) scintillator with a polymer binder. Available for thumbnail of Feynman Center (505) 665-9090 Email Flexible Composite Radiation Detector A flexible composite scintillator was prepared by mixing fast, bright, dense rare-earth doped powdered oxyorthosilicate (such as LSO:Ce, LSO:Sm, and GSO:Ce) scintillator with a polymer binder. The binder is transparent to the scintillator emission. The composite is seamless and can be made large and in a wide variety of shapes. Importantly, the composite can be tailored to emit light in a spectral region that matches the optimum

2

Providing Grid Flexibility in  

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

Providing Grid Flexibility in Wyoming and Montana Introduction Powder River Energy Corporation (PRECorp) is an electric cooperative serving approximately 11,900 customers in a...

3

Flexible Fuel Vehicles  

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

Flexible fuel vehicles (FFVs) are capable of operating on gasoline, E85 (85% ethanol, 15% gasoline), or a mixture of both. There are almost 8 million flexible fuel vehicles on U.S. roads today, but many FFV owners don't know their vehicle is one.

4

What is flexible electronics?  

Science Conference Proceedings (OSTI)

Flexible electronics has recently attracted much attention because of their potential in providing cost-efficient solutions to large-area applications such as rollable displays and TVs, e-paper, smart sensors and transparent RFIDs. The key advantages ...

Kwang-Ting (Tim) Cheng; Tsung-Ching Huang

2009-04-01T23:59:59.000Z

5

New Study Shows Solar Manufacturing Costs Not Driven Primarily by Labor |  

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

Study Shows Solar Manufacturing Costs Not Driven Primarily by Study Shows Solar Manufacturing Costs Not Driven Primarily by Labor New Study Shows Solar Manufacturing Costs Not Driven Primarily by Labor September 5, 2013 - 12:00pm Addthis Production scale, not lower labor costs, drives China's current advantage in manufacturing photovoltaic (PV) solar energy systems, according to a new report released today by the Energy Department's National Renewable Energy Laboratory (NREL) and the Massachusetts Institute of Technology (MIT). Although the prevailing belief is that low labor costs and direct government subsidies for PV manufacturing in China account for that country's dominance in PV manufacturing, the NREL/MIT study shows that a majority of the region's competitive advantage comes from production scale-enabled, in part, through preferred access to capital (indirect

6

New Study Shows Solar Manufacturing Costs Not Driven Primarily by Labor |  

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

New Study Shows Solar Manufacturing Costs Not Driven Primarily by New Study Shows Solar Manufacturing Costs Not Driven Primarily by Labor New Study Shows Solar Manufacturing Costs Not Driven Primarily by Labor September 5, 2013 - 12:00pm Addthis Production scale, not lower labor costs, drives China's current advantage in manufacturing photovoltaic (PV) solar energy systems, according to a new report released today by the Energy Department's National Renewable Energy Laboratory (NREL) and the Massachusetts Institute of Technology (MIT). Although the prevailing belief is that low labor costs and direct government subsidies for PV manufacturing in China account for that country's dominance in PV manufacturing, the NREL/MIT study shows that a majority of the region's competitive advantage comes from production scale-enabled, in part, through preferred access to capital (indirect

7

Flexible optical panel  

DOE Patents (OSTI)

A flexible optical panel includes laminated optical waveguides, each including a ribbon core laminated between cladding, with the core being resilient in the plane of the core for elastically accommodating differential movement thereof to permit winding of the panel in a coil.

Veligdan, James T. (Manorville, NY)

2001-01-01T23:59:59.000Z

8

Energy Basics: Flexible Fuel Vehicles  

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

EERE: Energy Basics Flexible Fuel Vehicles Photo of a gray van with 'E85 Ethanol' written on the side. Flexible fuel vehicles (FFVs) are capable of operating on gasoline, E85 (85%...

9

Flexible ocean upwelling pipe  

DOE Patents (OSTI)

In an ocean thermal energy conversion facility, a cold water riser pipe is releasably supported at its upper end by the hull of the floating facility. The pipe is substantially vertical and has its lower end far below the hull above the ocean floor. The pipe is defined essentially entirely of a material which has a modulus of elasticity substantially less than that of steel, e.g., high density polyethylene, so that the pipe is flexible and compliant to rather than resistant to applied bending moments. The position of the lower end of the pipe relative to the hull is stabilized by a weight suspended below the lower end of the pipe on a flexible line. The pipe, apart from the weight, is positively buoyant. If support of the upper end of the pipe is released, the pipe sinks to the ocean floor, but is not damaged as the length of the line between the pipe and the weight is sufficient to allow the buoyant pipe to come to a stop within the line length after the weight contacts the ocean floor, and thereafter to float submerged above the ocean floor while moored to the ocean floor by the weight. The upper end of the pipe, while supported by the hull, communicates to a sump in the hull in which the water level is maintained below the ambient water level. The sump volume is sufficient to keep the pipe full during heaving of the hull, thereby preventing collapse of the pipe.

Person, Abraham (Los Alamitos, CA)

1980-01-01T23:59:59.000Z

10

Flexible Fuel Vehicles: Providing a Renewable Fuel Choice (Fact Sheet)  

Science Conference Proceedings (OSTI)

Flexible Fuel vehicles are able to operate using more than one type of fuel. FFVs can be fueled with unleaded gasoline, E85, or any combination of the two. Today more than 7 million vehicles on U.S. highways are flexible fuel vehicles. The fact sheet discusses how E85 affects vehicle performance, the costs and benefits of using E85, and how to find E85 station locations.

Not Available

2010-03-01T23:59:59.000Z

11

Flexible retinal electrode array  

DOE Patents (OSTI)

An electrode array which has applications for neural stimulation and sensing. The electrode array can include a large number of electrodes each of which is flexibly attached to a common substrate using a plurality of springs to allow the electrodes to move independently. The electrode array can be formed from a combination of bulk and surface micromachining, with electrode tips that can include an electroplated metal (e.g. platinum, iridium, gold or titanium) or a metal oxide (e.g. iridium oxide) for biocompatibility. The electrode array can be used to form a part of a neural prosthesis, and is particularly well adapted for use in an implantable retinal prosthesis where the electrodes can be tailored to provide a uniform gentle contact pressure with optional sensing of this contact pressure at one or more of the electrodes.

Okandan, Murat (Albuquerque, NM); Wessendorf, Kurt O. (Albuquerque, NM); Christenson, Todd R. (Albuquerque, NM)

2006-10-24T23:59:59.000Z

12

Flexible swivel connection  

DOE Patents (OSTI)

A flexible swivel boot connector for connecting a first boot shield section to a second boot shield section, both first and second boot sections having openings therethrough, the second boot section having at least two adjacent accordian folds at the end having the opening, the second boot section being positioned through the opening of the first boot section such that a first of the accordian folds is within the first boot section and a second of the accordian folds is outside of the first boot, includes first and second annular discs, the first disc being positioned within and across the first accordian fold, the second disc being positioned within and across the second accordian fold, such that the first boot section is moveably and rigidly connected between the first and second accordian folds of the second boot section.

Hoh, J.C.

1985-02-19T23:59:59.000Z

13

Energy Basics: Flexible Fuel Vehicles  

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

& Fuels Printable Version Share this resource Fuels Vehicles Electric Vehicles Flexible Fuel Vehicles Fuel Cell Vehicles Hybrid Electric Vehicles Natural Gas Vehicles Propane...

14

State space representation of routing flexibility  

Science Conference Proceedings (OSTI)

This paper describes a state space representation for sequencing and routing flexibility in manufacturing systems. Routing flexibility is represented using five different stages as follows: (i) Precedence Graph of Operations; (ii) State Transition Graph ... Keywords: Flexible manufacturing systems, Routing flexibility, Sequencing flexibility, State space representation

Leonardo Rosa Rohde; Denis Borenstein

2005-12-01T23:59:59.000Z

15

Flexible armored blanket development  

SciTech Connect

An exploratory development contract was undertaken on December 23, 1977 which had as its purpose the development and demonstration of a flexible armored blanket design suitable for providing ballistic protection to nuclear weapons during shipment. Objectives were to design and fabricate a prototype blanket which will conform to the weapon shape, is troop-handleable in the field, and which, singly or in multiple layers, can defeat a range of kinetic energy armor piercing (AP) ammunition potentially capable of damaging the critical portion of the nuclear weapon. Following empirical testing, including the firing of threat ammunition under controlled laboratory and field test conditions, materials were selected and assembled into two blanket designs, each weighing approximately 54 kg/m{sup 2} (11 lbs/ft{sup 2}) and estimated to cost from $111 to $180 per ft{sup 2} in production. A firing demonstration to evidence blanket performance against terrorist/light infantry weapons, heavy infantry weapons, and aircraft cannon was conducted for representatives of the DOD and interested Sandia employees on April 12, 1978. The blankets performed better than anticipated defeating bullets up to 7.62 mm x 51 mm AP with one layer and projectiles up to 23 mm HEI with two layers. Based on these preliminary tests it is recommended that development work be continued with the following objectives: (1) the selection by the DOD of priority applications, (2) the specific design and fabrication of sufficient quantities of armored blankets for field testing, (3) the evaluation of the blankets by DOD operational units, with reports to Sandia Laboratories to enable final design.

Roth, E.S.

1978-05-01T23:59:59.000Z

16

Flexible MIPS soft processor architecture  

E-Print Network (OSTI)

The flexible MIPS soft processor architecture borrows selected technologies from high-performance computing to deliver a modular, highly customizable CPU targeted towards FPGA implementations for embedded systems; the ...

Carli, Roberto

2008-01-01T23:59:59.000Z

17

Flexible MIPS Soft Processor Architecture  

E-Print Network (OSTI)

The flexible MIPS soft processor architecture borrows selected technologies from high-performance computing to deliver a modular, highly customizable CPU targeted towards FPGA implementations for embedded systems; the ...

Carli, Roberto

2008-06-16T23:59:59.000Z

18

Argonne CNM Highlight: Flexible Hydrogen Sensors  

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

sheets reduces their overall weight and increases their mechanical flexibility and shock resistance. Flexible hydrogen sensors show a change of 75% in their resistance when...

19

Industries Affected  

Science Conference Proceedings (OSTI)

Table 2   Industries affected by microbiologically influenced corrosion...generation: nuclear, hydro, fossil fuel,

20

Flexible management of smart homes  

Science Conference Proceedings (OSTI)

An approach is presented for flexible management of smart homes, covering both home automation and telecare. The aim is to allow end users to manage their homes without requiring detailed technical knowledge or programming ability. This is achieved at ... Keywords: Component framework, goal refinement, home automation, open services gateway initiative, policy-based management, sensor network, telecare

Kenneth J. Turner

2011-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "flexibility primarily affects" 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

Flexible ultrasonic pipe inspection apparatus  

DOE Patents (OSTI)

Pipe crawlers, pipe inspection {open_quotes}rabbits{close_quotes} and similar vehicles are widely used for inspecting the interior surfaces of piping systems, storage tanks and process vessels for damaged or flawed structural features. This paper describes the design of a flexible, modular ultrasonic pipe inspection apparatus.

Jenkins, C.F.; Howard, B.D.

1994-01-01T23:59:59.000Z

22

Alternative Fuels Data Center: Flexible Fuel Vehicles  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Ethanol Ethanol Printable Version Share this resource Send a link to Alternative Fuels Data Center: Flexible Fuel Vehicles to someone by E-mail Share Alternative Fuels Data Center: Flexible Fuel Vehicles on Facebook Tweet about Alternative Fuels Data Center: Flexible Fuel Vehicles on Twitter Bookmark Alternative Fuels Data Center: Flexible Fuel Vehicles on Google Bookmark Alternative Fuels Data Center: Flexible Fuel Vehicles on Delicious Rank Alternative Fuels Data Center: Flexible Fuel Vehicles on Digg Find More places to share Alternative Fuels Data Center: Flexible Fuel Vehicles on AddThis.com... More in this section... Ethanol Basics Benefits & Considerations Stations Vehicles Availability Conversions Emissions Laws & Incentives Flexible Fuel Vehicles Photo of a flexible fuel vehicle.

23

Abstract --The paper introduces a concept for integration of substation IED data, primarily coming from digital protective  

E-Print Network (OSTI)

Abstract -- The paper introduces a concept for integration of substation IED data, primarily coming from digital protective relays (DPRs) and digital fault recorders (DFRs) . Modern substations similar to that of DFRs. In some recent substation designs there are cases where DFR function is replaced

Kezunovic, Mladen

24

Evaluating flexibility in railroad construction projects  

E-Print Network (OSTI)

This thesis aims to valuate flexibilities in a large-scale railroad construction project. In general, a railroad construction project involves a large amount of flexibilities due to its long construction period and conflicts ...

Oh, Choong Ryun, 1972-

2005-01-01T23:59:59.000Z

25

Flexible and Strategic Transmission Planning  

Science Conference Proceedings (OSTI)

This update describes two separate but related planning frameworks developed for this project: 1) balancing of reliability and economics in transmission planning and 2) consideration of the need for operational flexibility in planning. Projects that improve reliability can also improve economics, and vice versa. The challenge is in achieving the reliability goals with as much economic benefit as possible, in other words, balancing the reliability and economic goals without compromising either. A method o...

2011-12-22T23:59:59.000Z

26

Exercising flexible load contracts: Two simple strategies  

Science Conference Proceedings (OSTI)

A flexible load contract is a type of swing option where the holder has the right to receive a given quantity of electricity within a specified period, at a fixed maximum effect (delivery rate). The contract is flexible, in the sense that delivery (the ... Keywords: energy, exercise strategy, flexibility, swing option, uncertainty

Petter Bjerksund; Bjarte Myksvoll; Gunnar Stensland

2008-03-01T23:59:59.000Z

27

Hiring Flexibilities | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Hiring Flexibilities | National Nuclear Security Administration Hiring Flexibilities | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Hiring Flexibilities Home > Federal Employment > Our Jobs > Hiring Flexibilities Hiring Flexibilities NNSA supports hiring veterans and persons with disabilities for positions throughout our complex. Veterans Job Seekers with Disabilities

28

Flexible Spending Accounts | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Flexible Spending Accounts | National Nuclear Security Administration Flexible Spending Accounts | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Flexible Spending Accounts Home > Federal Employment > Working at NNSA > Benefits > Flexible Spending Accounts Flexible Spending Accounts The great jobs we have at NNSA also come with comprehensive benefits

29

Flexible Spending Accounts (FSA) | Department of Energy  

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

Flexible Spending Accounts (FSA) Flexible Spending Accounts (FSA) Flexible Spending Accounts (FSA) FSAFEDS offers three different flexible spending accounts (FSAs): A health care flexible spending account A limited expense health care flexible spending account A dependent care flexible spending account. Eligible employees can enroll in FSAFEDS each year during the Federal Benefits Open Season (the November/December timeframe). Open Season enrollments are effective January 1 of the following year. Current enrollees must remember to enroll each year to continue participating in FSAFEDS. Enrollment does NOT carry forward year to year. New and newly eligible employees who wish to enroll in this program must do so within 60 days after they become eligible, but before October 1 of the calendar year.

30

Design of Flexible-Duct Junction Boxes  

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

Design of Flexible-duct Design of Flexible-duct Junction Boxes Robert Beach, IBACOS Duncan Prahl, IBACOS Design of Flexible-duct Junction Boxes Presentation Outline * Current Standards and Practice * Analysis Methods * Recommendations Design of Flexible-duct Junction Boxes * Detailed report is in peer review anticipated to be published T3 this year. - http://www1.eere.energy.gov/library/default.aspx?page=2&spi d=2. * Measure guide to be part of Building America Solutions Center - http://basc.pnnl.gov/ Design of Flexible-duct Junction Boxes Typical Installations As Plenum As Monster Design of Flexible-duct Junction Boxes Current Standards * ASHRAE 2012 HVAC Systems and Equipment, Box Plenum Systems Using Flexible Duct - Constrains Box Width to 2-3x Entrance Width - Constrains Box Length to 2 x Box Width

31

Thermodynamics of tubelike flexible polymers  

E-Print Network (OSTI)

In this work we present the general phase behavior of short tubelike flexible polymers. The geometric thickness constraint is implemented through the concept of the global radius of curvature. We use sophisticated Monte Carlo sampling methods to simulate small bead-stick polymer models with Lennard-Jones interaction among non-bonded monomers. We analyze energetic fluctuations and structural quantities to classify conformational pseudophases. We find that the tube thickness influences the thermodynamic behavior of simple tubelike polymers significantly, i.e., for given temperature, the formation of secondary structures strongly depends on the tube thickness.

Thomas Vogel; Thomas Neuhaus; Michael Bachmann; Wolfhard Janke

2009-07-17T23:59:59.000Z

32

Flexible network wireless transceiver and flexible network telemetry transceiver  

DOE Patents (OSTI)

A transceiver for facilitating two-way wireless communication between a baseband application and other nodes in a wireless network, wherein the transceiver provides baseband communication networking and necessary configuration and control functions along with transmitter, receiver, and antenna functions to enable the wireless communication. More specifically, the transceiver provides a long-range wireless duplex communication node or channel between the baseband application, which is associated with a mobile or fixed space, air, water, or ground vehicle or other platform, and other nodes in the wireless network or grid. The transceiver broadly comprises a communication processor; a flexible telemetry transceiver including a receiver and a transmitter; a power conversion and regulation mechanism; a diplexer; and a phased array antenna system, wherein these various components and certain subcomponents thereof may be separately enclosed and distributable relative to the other components and subcomponents.

Brown, Kenneth D. (Grain Valley, MO)

2008-08-05T23:59:59.000Z

33

FADD Expression as a Prognosticator in Early-Stage Glottic Squamous Cell Carcinoma of the Larynx Treated Primarily With Radiotherapy  

Science Conference Proceedings (OSTI)

Purpose: We recently reported on the identification of the Fas-associated death domain (FADD) as a possible driver of the chromosome 11q13 amplicon and the association between increased FADD expression and disease-specific survival in advanced-stage laryngeal carcinoma. The aim of this study was to examine whether expression of FADD and its Ser194-phosphorylated isoform (pFADD) predicts local control in patients with early-stage glottic carcinoma primarily treated with radiotherapy only. Methods and Materials: Immunohistochemical staining for FADD and pFADD was performed on pretreatment biopsy specimens of 92 patients with T1-T2 glottic squamous cell carcinoma primarily treated with radiotherapy between 1996 and 2005. Cox regression analysis was used to correlate expression levels with local control. Results: High levels of pFADD were associated with significantly better local control (hazard ratio, 2.40; 95% confidence interval, 1.04-5.55; p = 0.040). FADD overexpression showed a trend toward better local control (hazard ratio, 3.656; 95% confidence interval, 0.853-15.663; p = 0.081). Multivariate Cox regression analysis showed that high pFADD expression was the best predictor of local control after radiotherapy. Conclusions: This study showed that expression of phosphorylated FADD is a new prognostic biomarker for better local control after radiotherapy in patients with early-stage glottic carcinomas.

Schrijvers, Michiel L. [Department of Otorhinolaryngology/Head and Neck Surgery, University Medical Center Groningen, University of Groningen, Groningen (Netherlands); Department of Pathology, University Medical Center Groningen, University of Groningen, Groningen (Netherlands); Pattje, Wouter J. [Department of Pathology, University Medical Center Groningen, University of Groningen, Groningen (Netherlands); Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen (Netherlands); Slagter-Menkema, Lorian [Department of Otorhinolaryngology/Head and Neck Surgery, University Medical Center Groningen, University of Groningen, Groningen (Netherlands); Department of Pathology, University Medical Center Groningen, University of Groningen, Groningen (Netherlands); Mastik, Mirjam F.; Gibcus, Johan H. [Department of Pathology, University Medical Center Groningen, University of Groningen, Groningen (Netherlands); Langendijk, Johannes A. [Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen (Netherlands); Wal, Jacqueline E. van der [Department of Pathology, University Medical Center Groningen, University of Groningen, Groningen (Netherlands); Laan, Bernard F.A.M. vn der [Department of Otorhinolaryngology/Head and Neck Surgery, University Medical Center Groningen, University of Groningen, Groningen (Netherlands); Schuuring, E., E-mail: e.schuuring@umcg.nl [Department of Pathology, University Medical Center Groningen, University of Groningen, Groningen (Netherlands)

2012-07-15T23:59:59.000Z

34

Optimization Online - Flexible Solutions to Maritime Inventory ...  

E-Print Network (OSTI)

Aug 12, 2013 ... Flexible Solutions to Maritime Inventory Routing Problems with Delivery Time Windows. Chengliang Zhang(czhang85 ***at*** gatech.edu)

35

Stretchable Power Sources for Flexible Electronics  

Science Conference Proceedings (OSTI)

In order to accommodate these needs, power source devices must be flexible and .... Theoretical Investigation of Cathode Catalysts for Alternative Li Batteries.

36

Demonstration Development Project: Plant Operational Flexibility  

Science Conference Proceedings (OSTI)

This report provides a summary of the EPRI Generation Sector initiative on flexible plant operations through 2012. The initiative objectives are to identify industry research needs related to increased flexible operation, to coordinate the sector research, and to communicate with stakeholders within the Electric Power Research Institute (EPRI) and the advisory structure. A detailed review of the Generation Sector ...

2012-12-12T23:59:59.000Z

37

Route planning with flexible edge restrictions  

Science Conference Proceedings (OSTI)

In this work, we explore a new type of flexible shortest-path query, in which the query can be dynamically parameterized to constrain the type of edges that may be included in the resulting shortest path (e.g., find the shortest path in a road network ... Keywords: Contraction Hierarchies, edge restrictions, flexible scenario, route planning, shortest paths

Robert Geisberger; Michael N. Rice; Peter Sanders; Vassilis J. Tsotras

2012-07-01T23:59:59.000Z

38

Flexible piezoelectric cantilevers fabricated on polyimide substrate  

Science Conference Proceedings (OSTI)

In this work we present for the first time the fabrication and the characterization of flexible micro cantilevers based on Aluminum Nitride (AlN) as piezoelectric active layer and polyimide as elastic substrate. The AlN thin film, embedded into two layers ... Keywords: AlN, Cantilevers, Flexible, Piezoelectric transduction, Polyimide

S. Petroni; G. Maruccio; F. Guido; M. Amato; A. Campa; A. Passaseo; M. T. Todaro; M. De Vittorio

2012-10-01T23:59:59.000Z

39

ORNL MAXLAB Flexible Research Platforms  

SciTech Connect

Oak Ridge National Laboratory (ORNL) was competitively awarded the Maximum Energy Efficiency Building Research Laboratory (MAXLAB) project under the American Recovery and Reinvestment Act (ARRA). As part of that project, the design and construction of two flexible research platforms (FRP) was included to provide new building test apparatus at ORNL. The two FRPs are designed to be capable of being outfitted as test buildings that are representative of typical construction methods, materials, and geometry used in the light commercial market. These test buildings will be heavily instrumented and will provide ORNL s industry partners a means of assessing new HVAC, control, and envelope solutions under realistic conditions, in a low financial risk environment. The long-term data collected at the facility can be used to validate analytic models which can then be used by developers to refine their potential products and reduce delivery time to market. This paper outlines the FRP concept, long term research plan and the challenges in the design and construction of the base research apparatus and test buildings.

Bhandari, Mahabir S [ORNL; Buckberry, Heather L [ORNL

2012-01-01T23:59:59.000Z

40

Alternative Fuels Data Center: Ethanol Flexible Fuel Vehicle Conversions  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Ethanol Flexible Fuel Ethanol Flexible Fuel Vehicle Conversions to someone by E-mail Share Alternative Fuels Data Center: Ethanol Flexible Fuel Vehicle Conversions on Facebook Tweet about Alternative Fuels Data Center: Ethanol Flexible Fuel Vehicle Conversions on Twitter Bookmark Alternative Fuels Data Center: Ethanol Flexible Fuel Vehicle Conversions on Google Bookmark Alternative Fuels Data Center: Ethanol Flexible Fuel Vehicle Conversions on Delicious Rank Alternative Fuels Data Center: Ethanol Flexible Fuel Vehicle Conversions on Digg Find More places to share Alternative Fuels Data Center: Ethanol Flexible Fuel Vehicle Conversions on AddThis.com... Ethanol Flexible Fuel Vehicle Conversions Updated July 29, 2011 Rising gasoline prices and concerns about climate change have greatly

Note: This page contains sample records for the topic "flexibility primarily affects" 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

NREL: Energy Analysis: Electric System Flexibility and Storage  

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

Electric System Flexibility and Storage Electric System Flexibility and Storage Options for Increasing Electric System Flexibility to Accommodate Higher Levels of Variable Renewable Electricity Increased electric system flexibility, needed to enable electricity supply-demand balance with high levels of renewable generation, can come from a portfolio of supply- and demand-side options, including flexible conventional generation, grid storage, curtailment of some renewable generation, new transmission, and more responsive loads. NREL's electric system flexibility studies investigate the role of various electric system flexibility options on large-scale deployment of renewable energy. NREL's electric system flexibility analyses show that: Key factors in improving grid flexibility include (1) increasing the

42

Ground-state properties of tubelike flexible polymers  

E-Print Network (OSTI)

In this work we investigate structural properties of native states of a simple model for short flexible homopolymers, where the steric influence of monomeric side chains is effectively introduced by a thickness constraint. This geometric constraint is implemented through the concept of the global radius of curvature and affects the conformational topology of ground-state structures. A systematic analysis allows for a thickness-dependent classification of the dominant ground-state topologies. It turns out that helical structures, strands, rings, and coils are natural, intrinsic geometries of such tubelike objects.

Thomas Vogel; Thomas Neuhaus; Michael Bachmann; Wolfhard Janke

2010-02-10T23:59:59.000Z

43

Flexible implementation of rigid solar cell technologies.  

Science Conference Proceedings (OSTI)

As a source of clean, remote energy, photovoltaic (PV) systems are an important area of research. The majority of solar cells are rigid materials with negligible flexibility. Flexible PV systems possess many advantages, such as being transportable and incorporable on diverse structures. Amorphous silicon and organic PV systems are flexible; however, they lack the efficiency and lifetime of rigid cells. There is also a need for PV systems that are light weight, especially in space and flight applications. We propose a solution to this problem by arranging rigid cells onto a flexible substrate creating efficient, light weight, and flexible devices. To date, we have created a working prototype of our design using the 1.1cm x 1cm Emcore cells. We have achieved a better power to weight ratio than commercially available PowerFilm{reg_sign}, which uses thin film silicon yielding .034W/gram. We have also tested our concept with other types of cells and verified that our methods are able to be adapted to any rigid solar cell technology. This allows us to use the highest efficiency devices despite their physical characteristics. Depending on the cell size we use, we can rival the curvature of most available flexible PV devices. We have shown how the benefits of rigid solar cells can be integrated into flexible applications, allowing performance that surpasses alternative technologies.

Hollowell, Andrew E.

2010-08-01T23:59:59.000Z

44

Flexible Capital Fund (Vermont) | Department of Energy  

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

Flexible Capital Fund (Vermont) Flexible Capital Fund (Vermont) Flexible Capital Fund (Vermont) < Back Eligibility Commercial Agricultural Construction Rural Electric Cooperative Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Vermont Program Type Loan Program Provider Vermont Sustainable Jobs Fund The Vermont Sustainable Jobs Fund's Flexible Capital Fund (the "Flex Fund") is designed for companies in Vermont's rural areas that are smaller and work on a less-than global scale, offering a return on investment that does not always meet venture capital levels. These rural companies may need a form of "equity" to fuel growth but need it in lesser amounts and perhaps at lower returns than traditional venture

45

A flexible system for Olympic villages  

E-Print Network (OSTI)

This thesis suggests a flexible system and its systems approach in constructing Olympic Villages which are used both during and after the Games. A historical overview of ancient Olympia and modern Olympia, as well as a ...

Chung, Se-Hack

1985-01-01T23:59:59.000Z

46

Biaxially Oriented Film on Flexible Polymeric Substrate  

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

Biaxially Oriented Film on Flexible Polymeric Substrate Biaxially Oriented Film on Flexible Polymeric Substrate Biaxially Oriented Film on Flexible Polymeric Substrate A semiconducting structure having a glass substrate. Available for thumbnail of Feynman Center (505) 665-9090 Email Biaxially Oriented Film on Flexible Polymeric Substrate LANL's Aligned-Crystalline Silicon (ACSi) technology provides highly crystalline silicon films on inexpensive substrates, such as metal sheets and glass plates. ACSi films exhibit good electrical and optical properties and have the potential to make an impact on the solar cell industry. The current ACSi prototype, designed under subpar tooling conditions in a non-optimal environment, already demonstrates 2% conversion efficiency. U.S. Patent No.: 7,601.430 (DOE S-104,959) Patent Application Filing Date: January 31, 2006

47

Flexible packet filtering: providing a rich toolbox  

Science Conference Proceedings (OSTI)

The BSD/OS IPFW packet filtering system is a well engineered, flexible kernel framework for filtering (accepting, rejecting, logging, or modifying) IP packets. IPFW uses the well understood, widely available Berkeley Packet Filter (BPF) system as the ...

Kurt J. Lidl; Deborah G. Lidl; Paul R. Borman

2002-02-01T23:59:59.000Z

48

A flexible design framework for autonomous mowing  

E-Print Network (OSTI)

This work outlines the creation of a flexible design framework for autonomous mowing to meet changing customer needs and functionality across a spectrum of applications from residential areas to sport complexes. The thesis ...

Kraft, Justin (Justin A.)

2011-01-01T23:59:59.000Z

49

Combustion Instability and Blowout Characteristics of Fuel Flexible...  

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

and Blowout Combustion Instability and Blowout Characteristics of Fuel Flexible Gas Turbine Characteristics of Fuel Flexible Gas Turbine Combustors Combustors Georgia...

50

INL's Move to Google Apps Enables Flexibility, Scalability |...  

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

INL's Move to Google Apps Enables Flexibility, Scalability INL's Move to Google Apps Enables Flexibility, Scalability December 7, 2011 - 1:42pm Addthis Brent Stacey, Chief...

51

Value Operating Flexibility in Advanced Coal Plants  

Science Conference Proceedings (OSTI)

This report describes a preliminary study of the potential value of the operating flexibility available from advanced coal plant designs and carbon capture and storage (CCS) systems. Assessing value requires new analytical approaches capable of examining plant outputs (e.g., syngas, air products, electricity, emissions) in the context of varying power market conditions and significant climate policy and fuel price uncertainties. Accounting for flexibility options in capacity planning may create opportuni...

2009-12-22T23:59:59.000Z

52

The Flexible Display Center and Universal Display Corporation Produce Flexible, Full-Color AMOLED Prototype Displays  

E-Print Network (OSTI)

successfully fabricated the first full-color, flexible active matrix organic light emitting diode (AMOLED) display prototypes using the Center's bond/de-bond manufacturing

Rhoads, James

53

Alternative Fuels Data Center: Flexible Fuel Vehicle Availability  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Flexible Fuel Vehicle Flexible Fuel Vehicle Availability to someone by E-mail Share Alternative Fuels Data Center: Flexible Fuel Vehicle Availability on Facebook Tweet about Alternative Fuels Data Center: Flexible Fuel Vehicle Availability on Twitter Bookmark Alternative Fuels Data Center: Flexible Fuel Vehicle Availability on Google Bookmark Alternative Fuels Data Center: Flexible Fuel Vehicle Availability on Delicious Rank Alternative Fuels Data Center: Flexible Fuel Vehicle Availability on Digg Find More places to share Alternative Fuels Data Center: Flexible Fuel Vehicle Availability on AddThis.com... More in this section... Ethanol Basics Benefits & Considerations Stations Vehicles Availability Conversions Emissions Laws & Incentives Flexible Fuel Vehicle Availability Flexible fuel vehicles (FFVs)-which can run on E85 (a gasoline-ethanol

54

Flexible shaft and roof drilling system  

DOE Patents (OSTI)

A system for drilling holes in the roof of a mine has a flexible shaft with a pair of oppositely wound, coaxial flat bands. One of the flat bands defines an inner spring that is wound right handed into a helical configuration, adjacent convolutions being in nesting relationship to one another. The other flat band defines an outer spring that is wound left handed into a helical configuration about the inner band, adjacent convolutions being nesting relationship with one another. A transition member that is configured to hold a rock bit is mounted to one end of the flexible shaft. When torque and thrust are applied to the flexible shaft by a driver, the inner spring expands outwardly and the outer spring contracts inwardly to form a relatively rigid shaft.

Blanz, John H. (Carlisle, MA)

1981-01-01T23:59:59.000Z

55

Flexible loads in future energy networks  

Science Conference Proceedings (OSTI)

We develop a vignette of an information-rich energy network with flexible and responsive electrical loads in the form of a domestic refrigerator augmented with a thermal storage system and a supply-following controller that responds to the availability ... Keywords: renewable, supply-following

Jay Taneja, Ken Lutz, David Culler

2013-01-01T23:59:59.000Z

56

SunShot Initiative: Flexible Assembly Solar Technology  

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

Flexible Assembly Solar Flexible Assembly Solar Technology to someone by E-mail Share SunShot Initiative: Flexible Assembly Solar Technology on Facebook Tweet about SunShot Initiative: Flexible Assembly Solar Technology on Twitter Bookmark SunShot Initiative: Flexible Assembly Solar Technology on Google Bookmark SunShot Initiative: Flexible Assembly Solar Technology on Delicious Rank SunShot Initiative: Flexible Assembly Solar Technology on Digg Find More places to share SunShot Initiative: Flexible Assembly Solar Technology 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

57

Research Commentary: Increasing the Flexibility of Legacy Systems  

Science Conference Proceedings (OSTI)

Flexibility is what people seek when striving to increase or expand economic and social choices, equity, and technological innovations. Flexibility provides the robustness needed to adjust to changes such as those arising from a warmer/colder world, ...

Barry Wellar; William L. Garrison; Ross MacKinnon; William R. Black; Arthur Getis

2011-04-01T23:59:59.000Z

58

Alternative Fuels Data Center: Flexible Fuel Vehicle (FFV) Promotion and  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Flexible Fuel Vehicle Flexible Fuel Vehicle (FFV) Promotion and Vehicle Registry to someone by E-mail Share Alternative Fuels Data Center: Flexible Fuel Vehicle (FFV) Promotion and Vehicle Registry on Facebook Tweet about Alternative Fuels Data Center: Flexible Fuel Vehicle (FFV) Promotion and Vehicle Registry on Twitter Bookmark Alternative Fuels Data Center: Flexible Fuel Vehicle (FFV) Promotion and Vehicle Registry on Google Bookmark Alternative Fuels Data Center: Flexible Fuel Vehicle (FFV) Promotion and Vehicle Registry on Delicious Rank Alternative Fuels Data Center: Flexible Fuel Vehicle (FFV) Promotion and Vehicle Registry on Digg Find More places to share Alternative Fuels Data Center: Flexible Fuel Vehicle (FFV) Promotion and Vehicle Registry on AddThis.com... More in this section...

59

Organism of options : a design strategy for flexible space  

E-Print Network (OSTI)

The need for "flexibility" of architecture has been increasing as recent social demands are rapidly changing. However, many buildings designed in the name of flexibility are blocky, boring, and actually quite inflexible ...

Kim, Young-Ju, M. Arch. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

60

Enabling manufacturing flexibility issue resolution in advanced vehicle development  

E-Print Network (OSTI)

Manufacturing Flexibility is a broad term used to describe a metric that can be measured in many different ways. Current industry experts agree that Flexibility is one of the key measures that will help the automotive ...

Tomlin, Grace C. (Grace Catherine)

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flexibility primarily affects" 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

Challenges in Flexible Aggregation of Pervasive Data  

E-Print Network (OSTI)

The vision of billions of users connected to millions of services using trillions of devices is fast becoming a reality. The result will be a vast network of mobile communication devices and data sources, including sensors, newsfeeds, web services, and databases. Potential uses of this data span a wide range of application domains, including medical monitoring, traffic routing, proximity detection, electricity management, and service-fleet dispatching. Applications require flexible mechanisms for constructing condensed and refined views of the raw data, possibly in ways unanticipated by the data providers. Aggregation comprises collection of high volumes of raw data from data sources, composition of the raw data into less voluminous refined data, and timely delivery of the refined data to applications. There are difficult challenges inherent in creating an aggregation system that is sufficiently flexible, scalable, and reliable to address the needs of applications. 1 The aggregation...

Norman H. Cohen; Norman H. Cohen; Apratim Purakayastha; Apratim Purakayastha; John Turek; John Turek; Luke Wong; Luke Wong; Danny Yeh; Danny Yeh

2001-01-01T23:59:59.000Z

62

Primer on Flexible Operations in Fossil Plants  

Science Conference Proceedings (OSTI)

This primer describes the significant changes that have occurred over the past decade in the duty cycles of fossil power plants and the implications for plant equipment and costs. These changes include the increasing shift in coal-fired and natural-gas-fired power plants from high-capacity-factor, baseloaded operation to various modes of flexible operation, including load-following and low-load operation. ...

2013-09-27T23:59:59.000Z

63

Operational Flexibility Implementation: Case Study #1  

Science Conference Proceedings (OSTI)

The case study presented in this report is the first in a series that examines the variety of challenges that electric utilities face in trying to improve the operational flexibility of their generation assets. Each case is unique in both the performance goals sought by the utility and the equipment and operational limitations present.In this case study, utility management believed that it was critical to dramatically reduce the hot restart time of their combined-cycle units in order to ...

2012-12-12T23:59:59.000Z

64

Operational Flexibility Implementation: Case Study #2  

Science Conference Proceedings (OSTI)

The case study presented in this report is the second in a series to examine the various challenges that electric utilities face in trying to improve the flexibility of their generation assets operational performance. Each case is unique in terms of both the utilitys performance goals and the limitations presented by equipment and operations. In this case study, utility management believed that their remaining competitive in the power marketplace was contingent on dramatically reducing ...

2013-10-09T23:59:59.000Z

65

Approaches to Encapsulation of Flexible CIGS Cells  

DOE Green Energy (OSTI)

Thin-film solar cells based on CIGS are being considered for large scale power plants as well as building integrated photovoltaic (BIPV) applications. Past studies indicate that CIGS cells degrade rapidly when exposed to moisture. As a result, an effective approach to encapsulation is required for CIGS cells to satisfy the international standard IEC 61646. CIGS modules fabricated for use in large power plants can be encapsulated with glass sheets on the top and bottom surfaces and can be effectively sealed around the edges. In the case of BIPV applications, however, it is desirable to utilize CIGS cells grown on flexible substrates, both for purposes of achieving reduced weight and for cases involving non-flat surfaces. For these cases, approaches to encapsulation must be compatible with the flexible substrate requirement. Even in the case of large power plants, the glass-to-glass approach to encapsulation may eventually be considered too costly. We are investigating encapsulation of flexible CIGS cells by lamination. Sheets of PET or PEN coated with multilayer barrier coatings are used to laminate the flexible cells. Results are discussed for laminated cells from two CIGS manufacturers. In both cases, the cell efficiency decreases less than 10% after 1000 hours of exposure to an environment of 85C/85%RH. This paper discusses these two approaches, reviews results achieved with cells and mini-modules fabricated by the former Shell Solar, Industries (SSI) stressed at 60C/90%RH (60/90), and recent studies of encapsulated IEC cells subjected to an environment of 85C/85%RH (85/85).

Olsen, Larry C.; Gross, Mark E.; Graff, Gordon L.; Kundu, Sambhu N.; Chu, Xi; Lin, Steve

2008-07-16T23:59:59.000Z

66

Flexible Network Attached Storage using Remote DMA  

E-Print Network (OSTI)

We propose to make nodes in a cluster double as compute nodes and network attached storage (NAS) nodes. This allows for a flexible and customizable storage system as the NAS control software is handled by regular workstations. The nodes can still be efficient compute nodes if networks with remote DMA capabilities are used, as such networks remove the processor from the data forwarding loop. We demonstrate this through measurements of a prototype implementation.

Jrgen S. Hansen

2001-01-01T23:59:59.000Z

67

Bio-Membrane Flexibility Studied in the Presence of ...  

Science Conference Proceedings (OSTI)

Bio-Membrane Flexibility Studied in the Presence of Cholesterol and Salt. Living cell membranes are made of phospholipids ...

68

High-Performance Flexible Organic Photovoltaic Cells with ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2013 TMS Annual Meeting & Exhibition. Symposium , 2013 and Beyond: Flexible Electronics. Presentation Title, High-Performance...

69

Optimization Online - Scheduling optimization of a real flexible job ...  

E-Print Network (OSTI)

Aug 13, 2013... flexible job shop including side constraints regarding maintenance, fixtures, ... Category 1: Applications -- OR and Management Sciences...

70

Computer Support for Social Awareness in Flexible Work  

Science Conference Proceedings (OSTI)

How do we conceptualize social awareness, and what support is needed to develop and maintain social awareness in flexible work settings? The paper begins by arguing the relevance of designing for social awareness in flexible work. It points out how social ... Keywords: `new' offices, ambience, design research, flexibility, social awareness

Susanne Bdker; Ellen Christiansen

2006-02-01T23:59:59.000Z

71

On the Flexible Connection of Rigid Double-Rail Track  

Science Conference Proceedings (OSTI)

To facilitate the loading and discharging of rolling stocks for train ferries, a new type of flexible double-rail track was recently invented. The geometric relationship of bending parameters of the flexible track is studied theoretically. The formulation ... Keywords: Flexible connection, Rail transport, Railway, Intermodal transport, Train ferry

Xie Xinlian; Li Meng; Liu Shiyong; Wang Shaocheng

2009-10-01T23:59:59.000Z

72

Stress Intensification Factors and Flexibility Factors for Unreinforced Branch Connections  

Science Conference Proceedings (OSTI)

This report provides equations, based on analyses and test data, for determining the stress intensification factors and flexibility factors for branch connections. The report contains results of an investigation into the flexibility and stress intensification factors of unreinforced fabricated tees (and other similar configurations). It provides flexibility equations for a more accurate evaluation of these configurations.

1998-11-23T23:59:59.000Z

73

Damage to Utility Boilers by Cycling and Flexible Operation: Report on the State of Knowledge  

Science Conference Proceedings (OSTI)

The focus of this report was twofold. First, the initial concept and implementation of a boiler component and damage mechanism ranking were developed, based on the effects of cycling. This state-of-knowledge ranking can be used for determining the emphasis of future research on components most affected by cycling. Second, the groundwork for these boiler components and damage mechanisms was laid for the development in the second phase of this project of the report, The Impact of Flexible ...

2012-11-28T23:59:59.000Z

74

Flexible, flexible and flexible  

Science Conference Proceedings (OSTI)

CFB plants are gaining a reputation for taking advantage of opportunity fuel while providing other substantial benefits. While dozens of pulverized coal projects face delay or cancellation amid uncertainty about the future of national policies regarding carbon capture among other issues, several CFB projects are moving forward in the US and elsewhere. The advances of CFB technology are discussed. Cleco Corp. is shifting from 70% gas and 30% coal to a 50/50 gas/coal mix using a 600 MW CFB in its Rodemacher 3 plant. The Virginia City Hybrid Energy Center will burn a mixture of 80% waste coal and 20% forestry wood chips in a CFB unit. Alstom is pursuing oxy-firing on the pulverised coal side with a 30 MW demonstration with Vattenfall in Germany. It is also pursuing the CFB side of oxy-fuel on a large scale. 1 photo.

Blankinship, S.

2009-02-15T23:59:59.000Z

75

Empowering Variable Renewables: Options for Flexible Electricity Systems |  

Open Energy Info (EERE)

Empowering Variable Renewables: Options for Flexible Electricity Systems Empowering Variable Renewables: Options for Flexible Electricity Systems Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Empowering Variable Renewables: Options for Flexible Electricity Systems Agency/Company /Organization: International Energy Agency Sector: Energy Focus Area: Renewable Energy Topics: Market analysis, Technology characterizations Resource Type: Publications Website: www.iea.org/g8/2008/Empowering_Variable_Renewables.pdf Empowering Variable Renewables: Options for Flexible Electricity Systems Screenshot References: Empowering Variable Renewables: Options for Flexible Electricity Systems[1] Summary "Increasing the share of renewables in energy portfolios is a key tool in the drive to reduce anthropogenic carbon dioxide emissions, as well as

76

Flexible-Fuel Vehicle Basics | Department of Energy  

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

Flexible-Fuel Vehicle Basics Flexible-Fuel Vehicle Basics Flexible-Fuel Vehicle Basics August 20, 2013 - 9:05am Addthis Photo of a gray van with 'E85 Ethanol' written on the side. Flexible fuel vehicles (FFVs) are capable of operating on gasoline, E85 (85% ethanol, 15% gasoline), or a mixture of both. There are almost 8 million flexible fuel vehicles on U.S. roads today, but many FFV owners don't know their vehicle is one. Unlike natural gas vehicles and propane bi-fuel vehicles, flexible fuel vehicles contain one fueling system, which is made up of ethanol-compatible components and is set to accommodate the higher oxygen content of E85. E85 should only be used in ethanol-capable FFVs. For more information, read Flexible Fuel Vehicles: Powered by a Renewable American Fuel. Download Adobe Reader.

77

Towards Flexible Exascale Stream Processing System Simulation  

Science Conference Proceedings (OSTI)

Stream processing is an important emerging computational model for performing complex operations on and across multi-source, high-volume, unpredictable dataflows. We present Flow, a platform for parallel and distributed stream processing system simulation that provides a flexible modeling environment for analyzing stream processing applications. The Flow stream processing system simulator is a high-performance, scalable simulator that automatically parallelizes chunks of the model space and incurs near-zero synchronization overhead for acyclic stream application graphs. We show promising parallel and distributed event rates exceeding 149 million events per second on a cluster with 512 processor cores.

Li, Cheng-Hong [IBM T. J. Watson Research Center; Nair, Ravi [IBM T. J. Watson Research Center; Ohba, Noboyuki [IBM Research, Japan; Shvadron, Uzi [IBM Corporation, Haifa Research Center; Zaks, Ayal [IBM Corporation, Haifa Research Center; Schenfeld, Eugen [IBM T. J. Watson Research Center

2012-01-01T23:59:59.000Z

78

Simulating holographic correspondence in flexible graphene  

E-Print Network (OSTI)

In the spirit of the generalized holographic conjecture, we explore a relationship between the bulk and boundary properties of non-interacting massive Dirac fermions living on a flexible surface, such as a sheet of graphene. We demonstrate that the boundary correlations can mimic those normally found in the system of one-dimensional interacting fermions, a specific form of such phantom interaction being determined by the bulk geometry. This geometrical interpretation of the boundary interaction effects offers a new insight into the possible origin of the more sophisticated types of holographic correspondence and suggests potential ways of visualizing 'analogue holography' in the experimentally viable environments.

D. V. Khveshchenko

2013-05-28T23:59:59.000Z

79

Isomorphs in flexible Lennard-Jones chains  

E-Print Network (OSTI)

This paper shows that the model of short, flexible Lennard-Jones chains (LJC) has curves (isomorphs) in its phase diagram along which structure and dynamics are invariant in the appropriate units. The isomorphs are identified by a density-dependent scaling exponent which can be obtained from fluctuations in the configurational parts of the energy and pressure. The isomorph invariance of the dynamics is seen both in segmental and center of mass dynamics, as well as in the relaxation of the Rouse modes. Jumps between different state points on the same isomorph happen instantaneously without any slow relaxation. Our findings show that the isomorph theory not only applies to atomic and small molecular liquids as previously shown, but also to flexible, anisotropic molecules. Since the LJC is a simple model system for alkanes and polymers, our results provide a possible explanation for why power-law density scaling is observed experimentally in alkanes and many polymeric systems. The theory provides an independent mean of determining the scaling exponent, which is usually treated as a empirical scaling parameter.

Arno A. Veldhorst; Jeppe C. Dyre; Thomas B. Schrder

2013-07-19T23:59:59.000Z

80

Flexible Conversion Ratio Fast Reactor Systems Evaluation  

Science Conference Proceedings (OSTI)

Conceptual designs of lead-cooled and liquid salt-cooled fast flexible conversion ratio reactors were developed. Both concepts have cores reated at 2400 MWt placed in a large-pool-type vessel with dual-free level, which also contains four intermediate heat exchanges coupling a primary coolant to a compact and efficient supercritical CO2 Brayton cycle power conversion system. Decay heat is removed passively using an enhanced Reactor Vessel Auxiliary Cooling System and a Passive Secondary Auxiliary Cooling System. The most important findings were that (1) it is feasible to design the lead-cooled and salt-cooled reactor with the flexible conversion ratio (CR) in the range of CR=0 and CR=1 n a manner that achieves inherent reactor shutdown in unprotected accidents, (2) the salt-cooled reactor requires Lithium thermal Expansion Modules to overcme the inherent salt coolant's large positive coolant temperature reactivity coefficient, (3) the preferable salt for fast spectrum high power density cores is NaCl-Kcl-MgCl2 as opposed to fluoride salts due to its better themal-hydraulic and neutronic characteristics, and (4) both reactor, but attain power density 3 times smaller than that of the sodium-cooled reactor.

Neil Todreas; Pavel Hejzlar

2008-06-30T23:59:59.000Z

Note: This page contains sample records for the topic "flexibility primarily affects" 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

CZT vs FFT: Flexibility vs Speed  

Science Conference Proceedings (OSTI)

Bluestein's Fast Fourier Transform (FFT), commonly called the Chirp-Z Transform (CZT), is a little-known algorithm that offers engineers a high-resolution FFT combined with the ability to specify bandwidth. In the field of digital signal processing, engineers are always challenged to detect tones, frequencies, signatures, or some telltale sign that signifies a condition that must be indicated, ignored, or controlled. One of these challenges is to detect specific frequencies, for instance when looking for tones from telephones or detecting 60-Hz noise on power lines. The Goertzel algorithm described in Embedded Systems Programming, September 2002, offered a powerful tool toward finding specific frequencies faster than the FFT.Another challenge involves analyzing a range of frequencies, such as recording frequency response measurements, matching voice patterns, or displaying spectrum information on the face of an amateur radio. To meet this challenge most engineers use the well-known FFT. The CZT gives the engineer the flexibility to specify bandwidth and outputs real and imaginary frequency components from which the magnitude and phase can be computed. A description of the CZT and a discussion of the advantages and disadvantages of CZT versus the FFT and Goertzel algorithms will be followed by situations in which the CZT would shine. The reader will find that the CZT is very useful but that flexibility has a price.

S. Sirin

2003-10-01T23:59:59.000Z

82

Carbon coated textiles for flexible energy storage  

SciTech Connect

This paper describes a flexible and lightweight fabric supercapacitor electrode as a possible energy source in smart garments. We examined the electrochemical behavior of porous carbon materials impregnated into woven cotton and polyester fabrics using a traditional printmaking technique (screen printing). The porous structure of such fabrics makes them attractive for supercapacitor applications that need porous films for ion transfer between electrodes. We used cyclic voltammetry, galvanostatic cycling and electrochemical impedance spectroscopy to study the capacitive behaviour of carbon materials using nontoxic aqueous electrolytes including sodium sulfate and lithium sulfate. Electrodes coated with activated carbon (YP17) and tested at 0.25 A$g1 achieved a high gravimetric and areal capacitance, an average of 85 F$g1 on cotton lawn and polyester microfiber, both corresponding to 0.43 F$cm2.

Jost, Kristy [Drexel University; Perez, Carlos O [ORNL; Mcdonough, John [Drexel University; Presser, Volker [ORNL; Heon, Min [Drexel University; Dion, Genevieve [Drexel University; Gogotsi, Yury [ORNL

2011-01-01T23:59:59.000Z

83

Passivation coating for flexible substrate mirrors  

DOE Patents (OSTI)

A protective diffusion barrier for metalized mirror structures is provided by a layer of coating of silicon nitride which is a very dense, transparent, dielectric material that is impervious to water, alkali, and other impurities and corrosive substances that typically attack the metal layers of mirrors and cause degradation of the mirrors' reflectivity. The silicon nitride layer can be deposited on the substrate before metal deposition thereon to stabilize the metal/substrate interface, and it can be deposited over the metal to encapsulate it and protect the metal from corrosion or other degradation. Mirrors coated with silicon nitride according to this invention can also be used as front surface mirrors. Also, the silver or other reflective metal layer on mirrors comprising thin, light-weight, flexible substrates of metal or polymer sheets coated with glassy layers can be protected with silicon nitride according to this invention. 13 figs.

Tracy, C.E.; Benson, D.K.

1988-10-19T23:59:59.000Z

84

Flexible ceramic gasket for SOFC generator  

DOE Patents (OSTI)

A solid oxide fuel cell generator (10) contains stacks of hollow axially elongated fuel cells (36) having an open top end (37), an oxidant inlet plenum (52), a feed fuel plenum (11), a combustion chamber (94) for combusting reacted oxidant/spent fuel; and, optionally, a fuel recirculation chamber (106) below the combustion chamber (94), where the fuel recirculation chamber (94) is in part defined by semi-porous fuel cell positioning gasket (108), all within an outer generator enclosure (8), wherein the fuel cell gasket (108) has a laminate structure comprising at least a compliant fibrous mat support layer and a strong, yet flexible woven layer, which may contain catalytic particles facing the combustion chamber, where the catalyst, if used, is effective to further oxidize exhaust fuel and protect the open top end (37) of the fuel cells.

Zafred, Paolo (Murrysville, PA); Prevish, Thomas (Trafford, PA)

2009-02-03T23:59:59.000Z

85

Flexible Residential Smart Grid Simulation Framework  

E-Print Network (OSTI)

Different scheduling and coordination algorithms controlling household appliances operations can potentially lead to energy consumption reduction and/or load balancing in conjunction with different electricity pricing methods used in smart grid programs. In order to easily implement different algorithms and evaluate their efficiency against other ideas, a flexible simulation framework is desirable in both research and business fields. However, such a platform is currently lacking or underdeveloped. In this thesis, we provide a simulation framework to focus on demand side residential energy consumption coordination in response to different pricing methods. This simulation framework, equipped with an appliance consumption library using realistic values, aims to closely represent the average usage of different types of appliances. The simulation results of traditional usage yield close matching values compared to surveyed real life consumption records. Several sample coordination algorithms, pricing schemes, and communication scenarios are also implemented to illustrate the use of the simulation framework.

Wang Xiang; Thomas Kunz; Marc St-hilaire; Wang Xiang

2013-01-01T23:59:59.000Z

86

Flexible Coal: Evolution from Baseload to Peaking Plant (Brochure...  

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

the transformation of power systems Flexible Coal Evolution from Baseload to Peaking Plant The experience cited in this paper is from a generating station with multiple units...

87

Flexible Mid-Sized Gas Turbine: Preliminary Market Analysis  

Science Conference Proceedings (OSTI)

This study estimates the sales potential of Flexible Mid-Sized Gas Turbine (FMGT) plants for the U.S. market over the period 2000-2015.

1998-06-08T23:59:59.000Z

88

Design of a flexible tariff for electricity transport.  

E-Print Network (OSTI)

??Network operators are looking for ways how to introduce a flexible tariff for electricity transport and how such a tariff would look like. This has (more)

Vroegop, J.M.

2013-01-01T23:59:59.000Z

89

Safety of Human-Robot Systems in Flexible Factory ...  

Science Conference Proceedings (OSTI)

... designs to ensure they can observe and touch their environment safely, but ... want to implement robotics in flexible factory environments in which the ...

2013-01-11T23:59:59.000Z

90

Predicting Ignition Delay for Gas Turbine Fuel Flexibility  

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

Predicting Ignition Delay for Gas Turbine Fuel Flexibility 15 m * Low emission combustion systems have been carefully optimized for natural gas * Future fuel diversity (including...

91

INTEGRATING INSTRUMENTATION DATA IN PROBABILISTIC PERFORMANCE PREDICTION OF FLEXIBLE PAVEMENTS.  

E-Print Network (OSTI)

??The goal of this research was to develop a methodology integrating instrumentation data with existing mechanistic-empirical performance models for flexible pavements. The methodology is further (more)

Yin, Hao

2007-01-01T23:59:59.000Z

92

Heteroepitaxial Si Thin Films Deposited on Flexible Copper ...  

Science Conference Proceedings (OSTI)

Presentation Title, Heteroepitaxial Si Thin Films Deposited on Flexible Copper Substrates for Solar Photovoltaics. Author(s), Daniela Florentina Bogorin, Lee...

93

Novel Synthesis and Processing Methods Enable Flexible, Transparent...  

Office of Science (SC) Website

Novel Synthesis and Processing Methods Enable Flexible, Transparent and Cheaper Solar Cells University of Illinois-Urbana Champaign Team's Research Funded by Office of...

94

Advanced Compact Filter: ( ACF) An Efficient and Flexible Filtration ...  

Science Conference Proceedings (OSTI)

This paper describes the key components of a new technology (ACF) developed and industrialized by Rio Tinto Alcan (RTA) which provides a flexible, efficient...

95

Core-Shell Type Nanowires for Electrodes of Flexible ...  

Science Conference Proceedings (OSTI)

Abstract Scope, Highly conductive oxide core-thin anode material shell nanowire ... yet flexible electrode with large surface area and high electric conductivity,...

96

Graphene-CNT Hybrid Structure Based Transparent and Flexible ...  

Science Conference Proceedings (OSTI)

We present here our recent research efforts in developing all-graphene based cathode and anode structures as flexible and transparent field emission device.

97

Flexible Dielectric Films that Incorporate Multi Walled Carbon ...  

Science Conference Proceedings (OSTI)

The composite materials were spin coated onto one side of flexible stainless steel substrates, and graphene and graphene with PMMA films were subsequently...

98

Flexible Bioelectronics in the Central and Peripheral Nervous Systems  

Science Conference Proceedings (OSTI)

Mar 4, 2013 ... Polydimethylsiloxane (PDMS) is used to fill the regions between the microelectrodes in the UEA and serves as a flexible electrical insulation...

99

Flexible Medical Radioisotope Production | U.S. DOE Office of...  

Office of Science (SC) Website

Flexible Medical Radioisotope Production Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Funding Opportunities Nuclear Science Advisory...

100

Flexible Demand in Smart Grids - Modeling and Coordination.  

E-Print Network (OSTI)

??The economic analysis of smart grid capabilities needs to incorporate physical boundaries as hard constraints which need to be facilitated by means of flexibility potentials (more)

Flath, Christoph Michael

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flexibility primarily affects" 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

High flexibility, noncollapsing light weight hose  

DOE Patents (OSTI)

This invention relates generally to a high-flexibility, light weight, noncollapsing hose and more particularly to such a hose having a large size and particularly useful as equipment draining a radioactively contaminated fluid through a noncontaiminated, isolated and restricted space with high confidence against kinking, collapse, or leaking even with large relative motion between the inlet and outlet ends of the hose. In the operation of nuclear facilities, such as nuclear reactors, processing plants for nuclear fuels and related materials, and chemical processing plants, for example, it is necessary to handle radioactively and/or chemically contaminated fluids which in many instances must be conducted, such as for draining purposes, through a noncontaminated, isolated area. Conduction of such contaminated fluids through uncontaminated environments in practice requires the highest confidence that the hose will not kink, collapse, break, or leak even though the hose may be subject to a large amount of motion relative to the inlet and outlet ends of the hose. Any such breaking, or leaking would result in undesirable contamination of the area through which the hose passes which could result in major damage and/or in the requirement to shut down the operation for cleanup and decontamination processing of the area. Additional problems are also encountered in processing plants for contaminated materials due to the fact that hoses conducting the contaminated liquids or gases pass through inaccessible, restricted spaces requiring extreme flexibility in the hose, but with the assurance that the hose will neither kink nor collapse to close off the flow.

Williams, D.A.

1991-02-01T23:59:59.000Z

102

Flexible energy storage devices based on nanocomposite paper  

E-Print Network (OSTI)

to build various flexible supercapacitor, battery, hybrid, and dual-storage battery-in-supercapacitor operation. The supercapacitors operate with electrolytes including aqueous solvents, room temperature ionic supercapacitor There has been recent interest in flexible safe energy devices, based on supercapacitors

Ajayan, Pulickel M.

103

Flexpad: highly flexible bending interactions for projected handheld displays  

Science Conference Proceedings (OSTI)

Flexpad is an interactive system that combines a depth camera and a projector to transform sheets of plain paper or foam into flexible, highly deformable, and spatially aware handheld displays. We present a novel approach for tracking deformed surfaces ... Keywords: bending, deformation, depth camera, flexible display, handheld display, projection, tracking, volumetric data

Jrgen Steimle; Andreas Jordt; Pattie Maes

2013-04-01T23:59:59.000Z

104

Silated acidic copolymers for nanoimprint lithography on flexible plastic substrates  

Science Conference Proceedings (OSTI)

A new silated acidic polymer was developed as the resist for nanoimprint lithography on flexible substrates. This polymer was synthesized from methylmethacrylate, n-butylacrylate, methacrylic acid and 3-[tris(trimethylsiloxy)silyl]propyl methacrylate ... Keywords: Flexible plastic substrate, Nanoimprint lithography, Reactive ion etching resistability, Silated acidic polymer

Wen-chang Liao; Steve Lien-Chung Hsu; Jui-Chen Lin

2007-01-01T23:59:59.000Z

105

Efficient Algorithms to Explore Conformation Spaces of Flexible Protein Loops  

Science Conference Proceedings (OSTI)

Several applications in biology - e.g., incorporation of protein flexibility in ligand docking algorithms, interpretation of fuzzy X-ray crystallographic data, and homology modeling - require computing the internal parameters of a flexible fragment (usually, ... Keywords: Biology and genetics, Robotics

Peggy Yao; Ankur Dhanik; Nathan Marz; Ryan Propper; Charles Kou; Guanfeng Liu; Henry van den Bedem; Jean-Claude Latombe; Inbal Halperin-Landsberg; Russ B. Altman

2008-10-01T23:59:59.000Z

106

Balancing performance and flexibility with hardware support for network architectures  

Science Conference Proceedings (OSTI)

The goals of performance and flexibility are often at odds in the design of network systems. The tension is common enough to justify an architectural solution, rather than a set of context-specific solutions. The Programmable Protocol Processing Pipeline ... Keywords: FPGA, P4, computer networking, flexibility, hardware, performance, programmable logic devices, programmable networks, protocol processing

Ilija Hadi?; Jonathan M. Smith

2003-11-01T23:59:59.000Z

107

Adaptive fuzzy sliding mode control for flexible satellite  

Science Conference Proceedings (OSTI)

The adaptive fuzzy sliding mode control is applied to the attitude stabilization of flexible satellite. The detailed design procedure of the fuzzy sliding mode control system is presented. The adaptive fuzzy control is utilized to approach the equivalent ... Keywords: Adaptive fuzzy control, Attitude control, Flexible satellite, Sliding mode control

Ping Guan; Xiang-Jie Liu; Ji-Zhen Liu

2005-06-01T23:59:59.000Z

108

Non-parametric modelling of a rectangular flexible plate structure  

Science Conference Proceedings (OSTI)

This research investigates the performance of dynamic modelling using non-parametric techniques for identification of a flexible structure system for development of active vibration control. In this paper, the implementation details are described and ... Keywords: ANFIS, Active vibration control, Flexible plate, Neural network, System identification

Intan Z. M. Darus; Ali A. M. Al-Khafaji

2012-02-01T23:59:59.000Z

109

Manager's Desk Reference on Human Capital Management Flexibilities |  

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

Manager's Desk Reference on Human Capital Management Flexibilities Manager's Desk Reference on Human Capital Management Flexibilities Manager's Desk Reference on Human Capital Management Flexibilities The purpose of this document is to provide DOE managers and supervisors with information on available flexibilities that can be used in day-to-day human capital management activities, especially those bearing on the recruitment and retention of high-quality staff. Each section of the document includes a basic description of a particular tool as well as Frequently Asked Questions related to how to best use it in a given set of circumstances or in combination with other flexibilities, unless they are available elsewhere, in which the web link is listed under References for that section. At the end of each section are references with web links that

110

Commercial Building HVAC: How it Affects People  

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

Commercial Building HVAC: How it Affects People Commercial Building HVAC: How it Affects People Speaker(s): William Fisk Date: November 13, 2000 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: David Faulkner Commercial building heating, ventilating, and air conditioning (HVAC) systems are designed primarily to maintain a reasonable level of thermal comfort while limiting first costs and energy consumption. However, research conducted predominately within the last decade suggests that commercial building HVAC significantly influences human outcomes other than thermal comfort, including the health, satisfaction, and work performance of the building's occupants. This presentation will review the relationships of these outcomes with HVAC system type, filtration system efficiency, indoor air temperature, and outside air ventilation rate.

111

Alcohol Fuel Flexibility -- Progress And Prospects  

E-Print Network (OSTI)

This paper was prepared as the result of work by a member of the staff of the California Energy Commission. It does not necessarily represent the views of the Energy Commission, its employees, or the State of California. The Energy Commission, the State of California, its employees, contractors and subcontractors make no warrant, express or implied, and assume no legal liability for the information in this paper; nor does any party represent that the uses of this information will not infringe upon privately owned rights. This paper has not been approved or disapproved by the California Energy Commission nor has the California Energy Commission passed upon the accuracy or adequacy of the information in this paper. SEPTEMBER 2005 CEC-600-2005-038 2 Alcohol Fuel Flexibility -- Progress and Prospects Thomas MacDonald California Energy Commission 1516 Ninth St. Sacramento, California 95814 Phone (916) 654-4120 FAX (916) 654-4753 e-mail: tmacdona@energy.state.ca.us Fifteenth International Symposium on Alcohol Fuels San Diego, CA September 26-28, 2005

Transportation Fuels Division; Thomas Macdonald; Thomas Macdonald

2005-01-01T23:59:59.000Z

112

Catalytic Combustor for Fuel-Flexible Turbine  

SciTech Connect

Under the sponsorship of the U. S. Department of Energy's National Energy Technology Laboratory, Siemens Westinghouse has conducted a three-year program to develop an ultra low NOx, fuel flexible catalytic combustor for gas turbine application in IGCC. The program is defined in three phases: Phase 1 - Implementation Plan, Phase 2 - Validation Testing and Phase 3 - Field Testing. Both Phase 1 and Phase 2 of the program have been completed. In IGCC power plants, the gas turbine must be capable of operating on syngas as a primary fuel and an available back-up fuel such as natural gas. In this program the Rich Catalytic Lean (RCLTM) technology is being developed as an ultra low NOx combustor. In this concept, ultra low NOx is achieved by stabilizing a lean premix combustion process by using a catalytic reactor to oxidize a portion of the fuel, increasing the temperature of fuel/air mixture prior to the main combustion zone. In Phase 1, the feasibility of the catalytic concept for syngas application has been evaluated and the key technology issues identified. In Phase II the technology necessary for the application of the catalytic concept to IGCC fuels was developed through detailed design and subscale testing. Phase III (currently not funded) will consist of full-scale combustor basket testing on natural gas and syngas.

W. R. Laster; E. Anoshkina

2008-01-31T23:59:59.000Z

113

Catalytic Combustor for Fuel-Flexible Turbine  

SciTech Connect

Under the sponsorship of the U.S. Department of Energy's National Energy Technology Laboratory, Siemens Westinghouse is conducting a three-year program to develop an ultra low NOx, fuel flexible catalytic combustor for gas turbine application in IGCC. The program is defined in three phases: Phase 1-Implementation Plan, Phase 2-Validation Testing and Phase 3-Field Testing. The Phase 1 program has been completed. Phase II was initiated in October 2004. In IGCC power plants, the gas turbine must be capable of operating on syngas as a primary fuel and an available back-up fuel such as natural gas. In this program the Rich Catalytic Lean (RCL{trademark}) technology is being developed as an ultra low NOx combustor. In this concept, ultra low NOx is achieved by stabilizing a lean premix combustion process by using a catalytic reactor to react part of the fuel, increasing the fuel/air mixture temperature. In Phase 1, the feasibility of the catalytic concept for syngas application has been evaluated and the key technology issues identified. In Phase II the catalytic concept will be demonstrated through subscale testing. Phase III will consist of full-scale combustor basket testing on natural gas and syngas.

W. R. Laster; E. Anoshkina; P. Szedlacsek

2006-03-31T23:59:59.000Z

114

Catalytic Combustor for Fuel-Flexible Turbine  

SciTech Connect

Under the sponsorship of the U. S. Department of Energys National Energy Technology Laboratory, Siemens Westinghouse has conducted a three-year program to develop an ultra low NOx, fuel flexible catalytic combustor for gas turbine application in IGCC. The program is defined in three phases: Phase 1- Implementation Plan, Phase 2- Validation Testing and Phase 3 Field Testing. Both Phase 1 and Phase 2 of the program have been completed. In IGCC power plants, the gas turbine must be capable of operating on syngas as a primary fuel and an available back-up fuel such as natural gas. In this program the Rich Catalytic Lean (RCLTM) technology is being developed as an ultra low NOx combustor. In this concept, ultra low NOx is achieved by stabilizing a lean premix combustion process by using a catalytic reactor to oxidize a portion of the fuel, increasing the temperature of fuel/air mixture prior to the main combustion zone. In Phase 1, the feasibility of the catalytic concept for syngas application has been evaluated and the key technology issues identified. In Phase II the technology necessary for the application of the catalytic concept to IGCC fuels was developed through detailed design and subscale testing. Phase III (currently not funded) will consist of full-scale combustor basket testing on natural gas and syngas.

Laster, W. R.; Anoshkina, E.

2008-01-31T23:59:59.000Z

115

Ris Energy Report 4 Flexibility, stability and security of energy supply 7 Flexibility, stability and security of energy supply  

E-Print Network (OSTI)

Risø Energy Report 4 Flexibility, stability and security of energy supply 7 Flexibility, stability and security of energy supply POUL SøRENSEN, PETER mEIbOm, PER NøRGåRD, RISø NATIONAL LAbORATORy, DENmARK tion ­ and is expected to ­ provide a significant contribution to a sustainable future energy supply. Depending

116

Flexible, high?performance speech synthesizer using custom NMOS circuitry  

Science Conference Proceedings (OSTI)

A programmable digital signal processor (PDSP) intended primarily for speech synthesis applications has been developed using custom NMOS LSI circuitry. Key features include high speech quality

Jim Caldwell

1978-01-01T23:59:59.000Z

117

Three-dimensional evaluation of the compression and recovery behavior in a flexible graphite sheet by synchrotron radiation microtomography  

SciTech Connect

The compression and unloading behavior of flexible graphite sheets was investigated using synchrotron radiation microtomography with 1 {mu}m voxel size. The recovery ratio of the flexible graphite sheet was measured accurately by in-situ observation. The three-dimensional strain distribution in the interior of the specimen was obtained using the microstructural tracking method. The inner strain distribution with micrometer scale indicated inhomogeneous deformation. The microstructural tracking analysis revealed that deformation units exist in the flexible graphite sheet. The units seem to deform, affecting the neighboring units with each other. The units had a similar size and shape with compacted exfoliated graphite worms that constitute the flexible graphite sheet. Microscopic deformations during compression and unloading are surely affected by the microstructure of the sheet. Highlights: Black-Right-Pointing-Pointer The compression and recovery behavior was investigated using microtomography. Black-Right-Pointing-Pointer The tracking analysis revealed that deformation units exist in the specimen. Black-Right-Pointing-Pointer Each unit deforms in relation to the neighboring unit.

Kobayashi, M., E-mail: m-kobayashi@me.tut.ac.jp [Department of Mechanical Engineering, Toyohashi University of Technology, Toyohashi, AICHI 441-8580 (Japan); Toda, H. [Department of Mechanical Engineering, Toyohashi University of Technology, Toyohashi, AICHI 441-8580 (Japan); Takeuchi, A.; Uesugi, K.; Suzuki, Y. [Japan Synchrotron Radiation Research Institute, Sayo-gun, HYOGO 679-5198 (Japan)

2012-07-15T23:59:59.000Z

118

Smart Domestic Appliances Provide Flexibility for Sustainable Energy  

Open Energy Info (EERE)

Smart Domestic Appliances Provide Flexibility for Sustainable Energy Smart Domestic Appliances Provide Flexibility for Sustainable Energy Systems (Webinar) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Smart Domestic Appliances Provide Flexibility for Sustainable Energy Systems (Webinar) Focus Area: Crosscutting Topics: Training Material Website: www.leonardo-energy.org/webinar-smart-domestic-appliances-provide-flex Equivalent URI: cleanenergysolutions.org/content/smart-domestic-appliances-provide-fle Language: English Policies: "Deployment Programs,Regulations" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. DeploymentPrograms: Demonstration & Implementation Regulations: Net Metering & Interconnection In this video, the viewer learns about the benefits and difficulties

119

Flexible riser monitoring using hybrid magnetic/optical strain gage techniques through RLS adaptive filtering  

Science Conference Proceedings (OSTI)

Flexible riser is a class of flexible pipes which is used to connect subsea pipelines to floating offshore installations, such as FPSOs (floating production/storage/off-loading unit) and SS (semisubmersible) platforms, in oil and gas production. Flexible ...

Daniel Pipa; Srgio Morikawa; Gustavo Pires; Claudio Camerini; Joo Mrcio Santos

2010-02-01T23:59:59.000Z

120

Minimizing the Cost of Innovative Nuclear Technology Through Flexibility: The Case of a Demonstration Accelerator-Driven Subcritical Reactor Park  

E-Print Network (OSTI)

other industries: aerospace (de Weck et al., 2004), airports (de Neufville and Odoni, 2003; Kwakkel et al., 2010), petroleum (Jablonowski et al., 2008), ports (Taneja et al., 2010), and real estate (Foster and Lee, 2009). In short, consequences... be that: There is no one fits all solution for implementing flexibility. Each system is different, and is subject to different uncertainty sources. An infinite number of uncertainty sources can affect the performance of systems (e.g. environmental...

Cardin, Michel-Alexandre; Steer, Steven J.; Nuttall, William J.; Parks, Geoffrey T.; Gonalves, Leonardo V.N.; de Neufville, Richard

Note: This page contains sample records for the topic "flexibility primarily affects" 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

Fuel Flexible Turbine System (FFTS) Program  

SciTech Connect

In this fuel flexible turbine system (FFTS) program, the Parker gasification system was further optimized, fuel composition of biomass gasification process was characterized and the feasibility of running Capstone MicroTurbine(TM) systems with gasification syngas fuels was evaluated. With high hydrogen content, the gaseous fuel from a gasification process of various feed stocks such as switchgrass and corn stover has high reactivity and high flashback propensity when running in the current lean premixed injectors. The research concluded that the existing C65 microturbine combustion system, which is designed for natural gas, is not able to burn the high hydrogen content syngas due to insufficient resistance to flashback (undesired flame propagation to upstream within the fuel injector). A comprehensive literature review was conducted on high-hydrogen fuel combustion and its main issues. For Capstone?s lean premixed injector, the main mechanisms of flashback were identified to be boundary layer flashback and bulk flow flashback. Since the existing microturbine combustion system is not able to operate on high-hydrogen syngas fuels, new hardware needed to be developed. The new hardware developed and tested included (1) a series of injectors with a reduced propensity for boundary layer flashback and (2) two new combustion liner designs (Combustion Liner Design A and B) that lead to desired primary zone air flow split to meet the overall bulk velocity requirement to mitigate the risk of core flashback inside the injectors. The new injector designs were evaluated in both test apparatus and C65/C200 engines. While some of the new injector designs did not provide satisfactory performance in burning target syngas fuels, particularly in improving resistance to flashback. The combustion system configuration of FFTS-4 injector and Combustion Liner Design A was found promising to enable the C65 microturbine system to run on high hydrogen biomass syngas. The FFTS-4 injector was tested in a C65 engine operating on 100% hydrogen and with the redesigned combustion liner - Combustion Liner Design A - installed. The results were promising for the FFTS program as the system was able to burn 100% hydrogen fuel without flashback while maintaining good combustion performance. While initial results have been demonstrated the feasibility of this program, further research is needed to determine whether these results will be repeated with FFTS-4 injectors installed in all injector ports and over a wide range of operating conditions and fuel variations.

None

2012-12-31T23:59:59.000Z

122

ME EET Seminar: Nanomanufacturing of Flexible Electronics and Energy  

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

ME EET Seminar: Nanomanufacturing of Flexible Electronics and Energy ME EET Seminar: Nanomanufacturing of Flexible Electronics and Energy Systems Speaker(s): Costas Grigoropoulos Date: October 28, 2009 - 12:00pm Location: 90-3122 This talk presents an overview of recent work conducted on the nanomanufacturing of flexible electronics and energy systems. Pulsed lasers have been coupled to near-field-scanning optical microscopes (NSOMs) for nanoprocessing, nanomachining, nanolithography and nanodeposition. Interactions of pulsed laser radiation with nanostructures are investigated and shown to substantially improve contact resistance and device performance compared to furnace annealing. New concepts have been demonstrated for the high throughput, directed growth and assembly of nanostructures. Maskless fabrication of functional devices on flexible

123

Compression effects on pressure loss in flexible HVAC ducts  

E-Print Network (OSTI)

to Determine Flow Resistance of HVAC Air Ducts and Fittings.Pressure Loss in Flexible HVAC Ducts Bass Abushakra, Ph.D.to Determine Flow Resistance of HVAC Air Ducts and Fittings.

Abushakra, Bass; Walker, Iain S.; Sherman, Max H.

2002-01-01T23:59:59.000Z

124

Apparatus and method for detecting tampering in flexible structures  

DOE Patents (OSTI)

A system for monitoring or detecting tampering in a flexible structure includes taking electrical measurements on a sensing cable coupled to the structure, performing spectral analysis on the measured data, and comparing the spectral characteristics of the event to those of known benign and/or known suspicious events. A threshold or trigger value may used to identify an event of interest and initiate data collection. Alternatively, the system may be triggered at preset intervals, triggered manually, or triggered by a signal from another sensing device such as a motion detector. The system may be used to monitor electrical cables and conduits, hoses and flexible ducts, fences and other perimeter control devices, structural cables, flexible fabrics, and other flexible structures.

Maxey, Lonnie C. (Knoxville, TN); Haynes, Howard D. (Knoxville, TN)

2011-02-01T23:59:59.000Z

125

Flexible aerogel composite for mechanical stability and process of fabrication  

DOE Patents (OSTI)

A flexible aerogel and process of fabrication. An aerogel solution is mixed with fibers in a mold and allowed to gel. The gel is then processed by supercritical extraction, or by air drying, to produce a flexible aerogel formed to the shape of the mold. The flexible aerogel has excellent thermal and acoustic properties, and can be utilized in numerous applications, such as for energy absorption, insulation (temperature and acoustic), to meet the contours of aircraft shapes, and where space is limited since an inch of aerogel is a 4-5 times better insulator than an inch of fiberglass. The flexible aerogel may be of an inorganic (silica) type or an organic (carbon) type, but containing fibers, such as glass or carbon fibers.

Coronado, Paul R. (Livermore, CA); Poco, John F. (Livermore, CA)

2000-01-01T23:59:59.000Z

126

Flexible aerogel composite for mechanical stability and process of fabrication  

DOE Patents (OSTI)

A flexible aerogel and process of fabrication. An aerogel solution is mixed with fibers in a mold and allowed to gel. The gel is then processed by supercritical extraction, or by air drying, to produce a flexible aerogel formed to the shape of the mold. The flexible aerogel has excellent thermal and acoustic properties, and can be utilized in numerous applications, such as for energy absorption, insulation (temperature and acoustic), to meet the contours of aircraft shapes, and where space is limited since an inch of aerogel is a 4-5 times better insulator than an inch of fiberglass. The flexible aerogel may be of an inorganic (silica) type or an organic (carbon) type, but containing fibers, such as glass or carbon fibers.

Coronado, Paul R. (Livermore, CA); Poco, John F. (Livermore, CA)

1999-01-01T23:59:59.000Z

127

Complexity in simplicity: flexible agent-based state space exploration  

Science Conference Proceedings (OSTI)

In this paper, we describe a new flexible framework for state space exploration based on cooperating agents. The idea is to let various agents with different search patterns explore the state space individually and communicate information about fruitful ...

Jacob I. Rasmussen; Gerd Behrmann; Kim G. Larsen

2007-03-01T23:59:59.000Z

128

Flexpad: highly flexible bending interactions for projected handheld displays  

E-Print Network (OSTI)

Flexpad is an interactive system that combines a depth camera and a projector to transform sheets of plain paper or foam into flexible, highly deformable, and spatially aware handheld displays. We present a novel approach ...

Jordt, Andreas

129

FLEXIBLE REMUNERATION For Continuous and Fixed Term Employees  

E-Print Network (OSTI)

................................................................................ 19 10.6 Fuel Cards for: · Superannuation Contributions Surcharge · H.E.C.S repayments · Medicare Levy Surcharge · Child Support obligations · Terminations Payments Surcharge #12;FLEXIBLE REMUNERATION PACKAGING MANUAL Version 2

130

Mechanics and design of flexible composite fish armor  

E-Print Network (OSTI)

Inspired by the overlapping scales found on teleost fish, a new composite architecture explores the mechanics of materials to accommodate both flexibility and protection. These biological structures consist of overlapping ...

Browning, Ashley (Ashley Rene)

2012-01-01T23:59:59.000Z

131

Flexible Fuel Vehicles: Providing a Renewable Fuel Choice  

DOE Green Energy (OSTI)

This Clean Cities Program fact sheet describes aspects of flexible fuel vehicles such as use of E85, special features, benefits of use, costs, and fueling locations. It discusses performance and lists additional resources.

Not Available

2007-05-01T23:59:59.000Z

132

Flexible solid-state paper based carbon nanotube supercapacitor  

Science Conference Proceedings (OSTI)

This paper presents a flexible solid-state supercapacitor of high energy density. The electrodes of the supercapacitor are made of porous and absorbent cotton paper coated with single-wall carbon nanotubes. To ensure all solid-state configuration

Shan Hu; Rajesh Rajamani; Xun Yu

2012-01-01T23:59:59.000Z

133

Low flammability cap-sensitive flexible explosive composition  

DOE Patents (OSTI)

A cap-sensitive flexible explosive composition of reduced flammability is provided by incorporating a finely divided, cap-sensitive explosive in a flame resistant polymeric binder system which contains a compatible flame retardant material.

Wagner, Martin G. (Wilmington, DE)

1992-01-14T23:59:59.000Z

134

Development of I&C Strategies for Plant Flexible Operations  

Science Conference Proceedings (OSTI)

Flexible operation of power plants to meet the needs of the power market will become an increasing need with deregulation and competition. Additional revenue streams are available to plants that can provide ancillary services -- and not just traditional power -- for the power system. This report provides a review of instrumentation and control (I&C) strategies for the flexible operation of power plants as applied in the United Kingdom market and documents the lessons learned.

2004-03-12T23:59:59.000Z

135

Design Considerations for Coal Plant CO2 Capture Flexibility  

Science Conference Proceedings (OSTI)

Based on the input from various Electric Power Research Institute- (EPRI-) sponsored research and other respected industry sources, this report aims to initially present the implications for the case when existing pulverized coal (PC) plants are required to operate under frequently changing load conditions. Design improvements to enable more flexible operation of the current and next generation coal fleet are also presented. Finally, the report discusses the implications for operation flexibility of ...

2013-01-11T23:59:59.000Z

136

Approach to Assessing Fuel Flexibility for Improved Generating Plant Profitability  

Science Conference Proceedings (OSTI)

This report presents the results of an EPRI study of fuel flexibility, a strategy that can increase a power plant's financial performance by matching choices regarding the type of coal burned at a generating station to fluctuations in the market price of electricity. The report presents detailed analytical information as well as conclusions drawn from the study, and includes a checklist utilities can use in evaluating the potential for a plant to benefit by adopting fuel flexibility.

1999-08-24T23:59:59.000Z

137

Freeze Crystallization Processes: Efficiency by Flexibility  

E-Print Network (OSTI)

Energy consumption in fractionating solutions by distillation and evaporation can be reduced by 70% to 90% by using freeze crystallization processes. The thermodynamic bases for the substantially lower energy requirements include: 1) The phase change is required only once in freeze processes, as opposed to the high reflux ratios needed in most distillation separations. 2) The latent heat of fusion is less than the heat of vaporization, and the process operates at a lower temperature, so the entropy of the separation is less. 3) A heat pump is used in the freeze crystallization process to transfer heat from the freezer to the melter, providing advantages similar to the vapor compression evaporator cycle. Freeze crystallization should be considered an alternative to all distillation and evaporation separation processes. The factors which affect the relative efficiency and economics of the process are discussed in this paper.

Heist, J. A.; Barron, T. S.

1983-01-01T23:59:59.000Z

138

Life Prediction of Composite Armor in an Unbonded Flexible Pipe  

E-Print Network (OSTI)

Composite materials are under consideration for the replacement of steel helical tendons in unbonded flexible pipes utilized by the offshore oil industry. Higher strength to weight ratios and increased corrosion resistance are the primary advantages of a composite material for this application. The current study focuses on the life prediction of a PPS/AS-4 carbon fiber composite proposed for the above employment. In order to accomplish this task, the properties of the material were experimentally characterized at varying temperatures, aging times and loadings. An analytic technique was developed to predict tensile rupture behavior from bend-compression rupture data. In comparison to tensile rupture tests, bend-compression rupture data collection are uncomplicated and efficient; thus, this technique effectively simplifies and accelerates the material characterization process. The service life model for the flexible pipe composite armor was constructed with MRLife, a well established performance simulation code for material systems developed by the Materials Response Group at Virginia Tech. In order to validate MRLife for the current material, experimental data are compared to life prediction results produced by the code. MRLife was then applied to predict the life of the flexible pipe composite armor in an ocean environment. This analysis takes into account the flexible pipe structure and the environmental and mechanical loading history of an ocean service location. Several parameter studies of a flexible pipe in a hypothetical environment were conducted. These analyses highlight certain loadings and conditions which are particularly detrimental to the life of the material.

Kenneth L. Reifsnider; Michael W. Hyer; Scott L. Hendricks; James S. Loverich; James S. Loverich

1997-01-01T23:59:59.000Z

139

Many Factors Affect MPG  

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

Many Factors Affect Fuel Economy Many Factors Affect Fuel Economy How You Drive Vehicle Maintenance Fuel Variations Vehicle Variations Engine Break-In Vehicles in traffic Quick acceleration and heavy braking can reduce fuel economy by up to 33 percent on the highway and 5 percent around town. New EPA tests account for faster acceleration rates, but vigorous driving can still lower MPG. Excessive idling decreases MPG. The EPA city test includes idling, but more idling will lower MPG. Driving at higher speeds increases aerodynamic drag (wind resistance), reducing fuel economy. The new EPA tests account for aerodynamic drag up to highway speeds of 80 mph, but some drivers exceed this speed. Cold weather and frequent short trips can reduce fuel economy, since your engine doesn't operate efficiently until it is warmed up. In colder

140

Flexible Fuel vehicle cost calculator | Open Energy Information  

Open Energy Info (EERE)

Flexible Fuel vehicle cost calculator Flexible Fuel vehicle cost calculator Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Flexible Fuel Vehicle Cost Calculator Agency/Company /Organization: United States Department of Energy Phase: "Evaluate Options and Determine Feasibility" is not in the list of possible values (Bring the Right People Together, Create a Vision, Determine Baseline, Evaluate Options, Develop Goals, Prepare a Plan, Get Feedback, Develop Finance and Implement Projects, Create Early Successes, Evaluate Effectiveness and Revise as Needed) for this property. User Interface: Website Website: www.afdc.energy.gov/afdc/progs/cost_anal.php?0/E85 Calculate the cost to drive a flex-fueled vehicle (one that can run on either E85 Ethanol or gasoline) on each fuel type.

Note: This page contains sample records for the topic "flexibility primarily affects" 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.


141

EA-1894: Albeni Falls Flexible Winter Lake Operations, Bonner, Idaho |  

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

EA-1894: Albeni Falls Flexible Winter Lake Operations, Bonner, EA-1894: Albeni Falls Flexible Winter Lake Operations, Bonner, Idaho EA-1894: Albeni Falls Flexible Winter Lake Operations, Bonner, Idaho Summary DOE's Bonneville Power Administration and the U.S. Army Corps of Engineers, as co-lead Federal agencies, prepared this EA to evaluate the potential environmental impacts of a proposal to operate Albeni Falls dam during the winter months (approximately December 15th to March 31st) and determine whether the existing Columbia River System Operation Review EIS (DOE/EIS-0170) is adequate or a supplemental or new EIS is required. For more information about this project, see: http://efw.bpa.gov/environmental_services/Document_Library/AFD-FWPO/ http://efw.bpa.gov/environmental_services/Document_Library/System_Operation/ (Link

142

Electricity for road transport, flexible power systems and wind power  

Open Energy Info (EERE)

road transport, flexible power systems and wind power road transport, flexible power systems and wind power (Smart Grid Project) Jump to: navigation, search Project Name Electricity for road transport, flexible power systems and wind power Country Denmark Coordinates 56.26392°, 9.501785° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":56.26392,"lon":9.501785,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

143

Unit Commitment Considering Generation Flexibility and Environmental Constraints  

Science Conference Proceedings (OSTI)

This paper proposes a new framework for power system unit commitment process, which incorporates the generation flexibility requirements and environmental constraints into the existing unit commitment algorithm. The generation flexibility requirements are to address the uncertainties with large amount of intermittent resources as well as with load and traditional generators, which causes real-time balancing requirements to be variable and less predictable. The proposed flexibility requirements include capacity, ramp and ramp duration for both upward and downward balancing reserves. The environmental constraints include emission allowance for fossil fuel-based generators and ecological regulations for hydro power plants. Calculation of emission rates is formulated. Unit commitment under this new framework will be critical to the economic and reliable operation of the power grid and the minimization of its negative environmental impacts, especially when high penetration levels of intermittent resources are being approached, as required by the renewable portfolio standards in many states.

Lu, Shuai; Makarov, Yuri V.; Zhu, Yunhua; Lu, Ning; Prakash Kumar, Nirupama; Chakrabarti, Bhujanga B.

2010-07-31T23:59:59.000Z

144

Functional design criteria 241-AP-102 Flexible Receiver System  

SciTech Connect

A mixer pump was installed in the 1.07 m (42-in.) riser of the central pump pit of tank 241-AP-102 to mitigate potential fluid separation particle sedimentation by mixing the tank`s contents. The mixer pump performed this function until failure. Its removal is now necessary to meet possible tank content removal commitments or other corrective actions. The proposed removal procedure requires a flexible receiver that will provide a barrier to contamination during removal and transfer of the pump to the mixer pump storage container. This document describes the functional design criteria of the flexible receiver. These criteria include the functional and performance requirements of the flexible receiver as a barrier to contamination during normal conditions and contingencies and the instrumentation requirements.

Roblyer, S.P.

1995-02-16T23:59:59.000Z

145

Design and Analysis of Flexible Biodiesel Processes with Multiple Feedstocks  

E-Print Network (OSTI)

With the growing interest in converting a wide variety of biomass-based feedstocks to biofuels, there is a need to develop effective procedures for the design and optimization of multi-feedstock biorefineries. The unifying goal of this work is the development of systematic methodologies and procedures for designing flexible multifeedstock biorefineries. This work addresses four problems that constitute building blocks towards achieving the unifying goal of the dissertation. The first problem addresses the design and techno-economic analysis of an integrated system for the production of biodiesel from algal oil. With the sequestration of carbon dioxide from power plant flue gases, algae growth and processing has the potential to reduce greenhouse gas emissions. Algae are a non-food oil feedstock source and various pathways and technologies for obtaining algal oil were investigated. Detailed economic and sensitivity analysis reveal specific scenarios that lead to profitability of algal oil as an alternative feedstock. In the second problem, a new safety metric is introduced and utilized in process design and selection. A case study was solved to assess the potential of producing biodiesel from sewage sludge. The entire process was evaluated based on multiple criteria including cost, technology and safety. The third problem is concerned with incorporating flexibility in the design phase of the development of multi-feedstock biofuel production processes. A mathematical formulation is developed for determining the optimal flexible design for a biorefinery that is to accommodate the use of multiple feedstocks. Various objective functions may be utilized for the flexible plant depending on the purpose of the flexibility analysis and a case study is presented to demonstrate one such objective function. Finally, the development of a systematic procedure for incorporating flexibility and heat integration in the design phase of a flexible feedstock production process is introduced for the fourth problem. A mathematical formulation is developed for use in determining the heat exchange network design. By incorporating the feedstock scenarios under investigation, a mixed integer linear program is generated and a flexible heat exchange network scheme can be developed. The solution provides for a network that can accommodate the heating and cooling demands of the various scenarios while meeting minimum utility targets.

Pokoo-Aikins, Grace Amarachukwu

2010-08-01T23:59:59.000Z

146

Flexible profile approach to the conjugate heat transfer problem  

E-Print Network (OSTI)

The flexible profile approach proposed earlier to create CTM (compact or reduced order thermal models) is extended to cover the area of conjugate heat transfer. The flexible profile approach is a methodology that allows building a highly boundary conditions independent CTM, with any desired degree of accuracy, that may adequately replace detailed 3D models for the whole spectrum of applications in which the modeled object may be used. The extension to conjugate problems radically solves the problem of interfacing two different domains. Each domain, fluid or solid, can be "compacted" independently creating two CTM that can be joined together to produce reliable results for any arbitrary set of external boundary conditions.

M. -N. Sabry

2008-01-07T23:59:59.000Z

147

Investigation of Adaptive Control Techniques for Improved Fuel Flexibility  

Science Conference Proceedings (OSTI)

In recent years, EPRI has been studying the role of enhanced instrumentation and control (I&C) systems in improving operational flexibility for fossil-fueled power plants. One method of improving operational flexibility is by reducing plant operating costs. For coal-fired plants, the cost of fuel represents about 75% of the total operating costs, so obtaining lower priced fuel is often a major objective. Unlike many fuels, all coals are not the same and their differences can have significant impacts on a...

2007-03-21T23:59:59.000Z

148

FUEL CELLS IN SHIPPING: HIGHER CAPITAL COSTS AND REDUCED FLEXIBILITY  

E-Print Network (OSTI)

Abstract: The paper discusses some main economic characteristics of fuel cell power production technology applied to shipping. Whenever competitive fuel cell systems enter the market, they are likely to have higher capital costs and lower operating costs than systems based on traditional combustion technology. Implications of the difference are investigated with respect to investment flexibility by the use of a real options model of ship investment, lay-up and scrapping decisions under freight rate uncertainty. A higher capital share of total expected costs can represent a significant opportunity cost in uncertain markets. The paper highlights the significance of accounting properly for value of flexibility prior to investment in new technology.

Sigbjrn Sdal

2003-01-01T23:59:59.000Z

149

Los vehículos de combustible flexibles  

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

Los vehículos de combustible flexibles Los vehículos de combustible flexibles Camiones de Combustible flexible Los vehículos de combustible flexibles (FFVs) son diseñados para funcionar con gasolina o una mezcla de etanol de hasta el 85 % (E85). Excepto por unas cuantas modificaciones del motor y del sistema de combustible, son idénticos a los modelos que funcionan solo con gasolina. Los VCFs no experimentan pérdida alguna en su desempeño al operar con E85. Sin embargo, como el etanol contiene menos energía por volumen que la gasolina, los VCFs obtienen entre un 25%-30% menos millas por galón cuando usan E85. 1 Los VCFs han sido producidos desde los 80s y docenas de modelos siguen disponibles. Sin embargo como los VCFs lucen igual que los modelos de gasolina, podría usted estar manejando uno sin saberlo.

150

AIAA 20010064 Multi-Flexible-Body Dynamic Analysis of  

E-Print Network (OSTI)

. and Dijkstra, S., "Modeling of Structural Dynamics of Lagerwey LW-50/750 Wind Turbine," Wind En- gineering, VolAIAA 2001­0064 Multi-Flexible-Body Dynamic Analysis of Horizontal-Axis Wind Turbines Mayuresh J-0150 ABSTRACT A dynamic stability analysis is presented for a horizontal-axis wind turbine modeled as a multi

Patil, Mayuresh

151

Design Options for Enhancing IGCC Flexible Operations Performance and Economics  

Science Conference Proceedings (OSTI)

This report describes the cycling experience of integrated gasification combined cycle (IGCC) plants, and the characteristics of IGCC and its component technologies that can make it particularly responsive to renewables-driven, flexible operation and cycling requirements. It also identifies a number of design options for optimizing IGCC cycling performance, and economics for such requirements to nearly meet natural gas combined cycle (NGCC) ramping ...

2013-12-13T23:59:59.000Z

152

Flexible pipe crawling device having articulated two axis coupling  

DOE Patents (OSTI)

An apparatus for moving through the linear and non-linear segments of piping systems. The apparatus comprises a front leg assembly, a rear leg assembly, a mechanism for extension and retraction of the front and rear leg assembles with respect to each other, such as an air cylinder, and a pivoting joint. One end of the flexible joint attaches to the front leg assembly and the other end to the air cylinder, which is also connected to the rear leg assembly. The air cylinder allows the front and rear leg assemblies to progress through a pipe in "inchworm" fashion, while the joint provides the flexibility necessary for the pipe crawler to negotiate non-linear piping segments. The flexible connecting joint is coupled with a spring-force suspension system that urges alignment of the front and rear leg assemblies with respect to each other. The joint and suspension system cooperate to provide a firm yet flexible connection between the front and rear leg assemblies to allow the pivoting of one with respect to the other while moving around a non-linear pipe segment, but restoring proper alignment coming out of the pipe bend.

Zollinger, William T. (Martinez, GA)

1994-01-01T23:59:59.000Z

153

Do You Own a Flexible-Fuel Vehicle?  

SciTech Connect

This two-page Clean Cities fact sheet describes flexible fuel vehicles (FFVs) -- those that can run on ethanol, gasoline, or a combination of the two. It targets individual drivers and fleet operators who may not know they're already driving FFVs or who may want to purchase FFVs

2003-04-01T23:59:59.000Z

154

A flexible IT infrastructure for integrated urban planning  

Science Conference Proceedings (OSTI)

This paper presents an IT infrastructure based on an event driven architecture with the objective to decrease the turnaround time for urban planning. Most urban planning takes a long time, not only to get all stakeholders involved, but also to assess ... Keywords: Urban planning, event driven architecture, flexibility, infrastructure, interoperability

Wout Hofman; Walter Lohman; Ab Schelling

2011-04-01T23:59:59.000Z

155

Flexible pipe crawling device having articulated two axis coupling  

DOE Patents (OSTI)

An apparatus is described for moving through the linear and non-linear segments of piping systems. The apparatus comprises a front leg assembly, a rear leg assembly, a mechanism for extension and retraction of the front and rear leg assembles with respect to each other, such as an air cylinder, and a pivoting joint. One end of the flexible joint attaches to the front leg assembly and the other end to the air cylinder, which is also connected to the rear leg assembly. The air cylinder allows the front and rear leg assemblies to progress through a pipe in inchworm' fashion, while the joint provides the flexibility necessary for the pipe crawler to negotiate non-linear piping segments. The flexible connecting joint is coupled with a spring-force suspension system that urges alignment of the front and rear leg assemblies with respect to each other. The joint and suspension system cooperate to provide a firm yet flexible connection between the front and rear leg assemblies to allow the pivoting of one with respect to the other while moving around a non-linear pipe segment, but restoring proper alignment coming out of the pipe bend. 4 figures.

Zollinger, W.T.

1994-05-10T23:59:59.000Z

156

Flexible Process-Based Applications in Hybrid Clouds  

Science Conference Proceedings (OSTI)

Cloud applications target large costumer groups to leverage economies of scale. To increase the number of customers, a flexible application design is of major importance. It enables customers to adjust the application to their individual needs in a self-service ... Keywords: application customization, self-service, orchestration, composite application, provisioning, cloud

Christoph Fehling; Frank Leymann; David Schumm; Ralf Konrad; Ralph Mietzner; Michael Pauly

2011-07-01T23:59:59.000Z

157

Pervasive flexibility in living technologies through degeneracy-based design  

Science Conference Proceedings (OSTI)

The capacity to adapt can greatly influence the success of systems that need to compensate for damaged parts, learn how to achieve robust performance in new environments, or exploit novel opportunities that originate from new technological interfaces ... Keywords: Pervasive flexibility, adaptation, degeneracy, distributed robustness, living technologies

James Whitacre; Axel Bender

2013-10-01T23:59:59.000Z

158

Do You Own a Flexible-Fuel Vehicle?  

DOE Green Energy (OSTI)

This two-page Clean Cities fact sheet describes flexible fuel vehicles (FFVs) -- those that can run on ethanol, gasoline, or a combination of the two. It targets individual drivers and fleet operators who may not know they're already driving FFVs or who may want to purchase FFVs

Not Available

2003-04-01T23:59:59.000Z

159

SmokeScreen: flexible privacy controls for presence-sharing  

Science Conference Proceedings (OSTI)

Presence-sharing is an emerging platform for mobile applications, but presence-privacy remains a challenge. Privacy controls must be flexible enough to allow sharing between both trusted social relations and untrusted strangers. In this paper, we present ... Keywords: location privacy, mobile computing, pervasive computing, presence-sharing, social networks

Landon P. Cox; Angela Dalton; Varun Marupadi

2007-06-01T23:59:59.000Z

160

Flexible Fuel Vehicles: Providing a Renewable Fuel Choice (Revised)  

DOE Green Energy (OSTI)

Clean Cities fact sheet describing aspects of flexible fuel vehicles such as use of E85, special features, benefits of use, costs, and fueling locations. It includes discussion on performance and how to identify these vehicles as well as listing additional resources.

Not Available

2008-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "flexibility primarily affects" 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

Development of an ontology-based flexible clinical pathway system  

Science Conference Proceedings (OSTI)

The efficient storage of medical knowledge is critical for the advancement of medicine; a flexible platform for the storage of knowledge is the need of the hour. Therefore, this work focuses on clinical pathways--tools that effectively maintain the quality ... Keywords: clinical pathways, domain ontology, ontology, ontology-based system, task ontology

Y. C. Lin

2009-12-01T23:59:59.000Z

162

Crude Oil Affects Gasoline Prices  

U.S. Energy Information Administration (EIA)

Crude Oil Affects Gasoline Prices. WTI Crude Oil Price. Retail Gasoline Price. Source: Energy Information Administration

163

Marcellus natural gas pipeline projects to primarily ...  

U.S. Energy Information Administration (EIA)

Includes hydropower, solar, wind, geothermal, biomass and ethanol. Nuclear & Uranium. Uranium fuel, nuclear reactors, generation, spent fuel. ... ...

164

Operational flexibility on complex enterprises : case studies from recent military operations  

E-Print Network (OSTI)

An emerging requirement for 21st century enterprises is operational flexibility, a requirement particularly important for the U. S. Department of Defense (DoD). To achieve flexibility, most practice and research emphasizes ...

Dickmann, John Q

2009-01-01T23:59:59.000Z

165

Applications of flexible pricing in business-to-business electronic commerce  

Science Conference Proceedings (OSTI)

The increasingly dynamic nature of business-to-business electronic commerce has produced a recent shift away from fixed pricing and toward flexible pricing. Flexible pricing, as defined here, includes both differential pricing, in which different buyers ...

M. Bichler; J. Kalagnanam; K. Katircioglu; A. J. King; R. D. Lawrence; H. S. Lee; G. Y. Lin; Y. Lu

2002-04-01T23:59:59.000Z

166

Numerical models for scoring failures of flexible metal to metal face seals  

E-Print Network (OSTI)

The flexible metal to metal face seals (FMMFS) has unique features including much more flexibility in the circumferential direction than in the radial direction, identical rotating and stationary seals, and a loading ...

Hong, Jinchul, 1977-

2005-01-01T23:59:59.000Z

167

Determining the value of volume and process flexibility in market driven manufacturing operations  

E-Print Network (OSTI)

Manufacturing flexibility is wide field of research that lacks a clear and concise definition. It has been described by some to be a source of competitive advantage. Others have described manufacturing flexibility as ...

Trujillo, Jason M

2007-01-01T23:59:59.000Z

168

Designing New Transit Bus Garages to be Fuel Flexible  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Designing New Transit Bus Garages to be Fuel Flexible Prepared By: Marathon Technical Services Six Venus Crescent P.O. Box 318 Heidelberg, Ontario, Canada N0B1Y0 Telephone: 519-699-9250 May 12, 2006 ______________________________________________________________________________ DESIGNING NEW TRANSIT BUS GARAGES TO BE FUEL FLEXIBLE Background Information Before discussing the building design features that are recommended for CNG and GH2 buses, it is important to understand what makes these fuels different from gasoline or diesel. The items below summarize the basic differences between the properties of gaseous and liquid fuels that influence the building design changes: 1. Natural Gas and Hydrogen are both lighter-than-air and in gaseous form at atmospheric

169

Operational Flexibility Guidelines for Gas Turbine Low NOx Combustion Systems  

Science Conference Proceedings (OSTI)

Gas turbine low-NOx combustion systems can differ in hardware from manufacturer to manufacturer, but the principle is the same. Low-NOx combustors reduce peak flame temperatures by mixing fuel and air before combustion and by keeping the fuel-to-air ratio as low (lean) as possible, while still maintaining combustion stability over the broadest possible operating range. Low-NOx combustion systems are inherently more complex than diffusion combustion systems, a fact that impacts operational flexibility, re...

2011-12-14T23:59:59.000Z

170

A flexible location management scheme for mobile computing  

E-Print Network (OSTI)

Location management for mobile users is an important issue in distributed, mobile computing environments. In this thesis, I propose a flexible location management scheme on the Internet to support mobile users. The proposed scheme supports location search and update operations based on a data replication technique. I implemented the proposed scheme as an experimental prototype using ORACLE Distributed Database Management System (DDBMS), where two clients access independent database objects on one server to simulate the behavior of a distributed system.

Zhang, Ying

1996-01-01T23:59:59.000Z

171

Design Options for Enhancing IGCC Flexible Operations Performance and Economics  

Science Conference Proceedings (OSTI)

This report describes the cycling experience of integrated-gasification combined-cycle (IGCC) plants and the characteristics of IGCC and its component technologies that can make it particularly responsive to renewables-driven, flexible operation and cycling requirements. It also identifies a number of design options for optimizing IGCC cycling performance and economics for such requirements.BackgroundIntermittent renewable sources, such as wind and solar ...

2012-12-31T23:59:59.000Z

172

Revenues from Ancillary Services and the Value of Operational Flexibility  

Science Conference Proceedings (OSTI)

The movement toward competitive regional wholesale power markets is creating the requirement and opportunity for generators to sell ancillary services in addition to energy. Calculation of revenues and net income from these sources is critical to assessing asset values, evaluating investments in order to obtain greater operating flexibility, and determining whether to retire or mothball units. This report reviews the status of ancillary services market development in the United States and Canada, and dem...

2002-12-02T23:59:59.000Z

173

Flexible Alternating Current Transmission System Application Guidelines and Operating Strategies  

Science Conference Proceedings (OSTI)

The goals of this project are twofold: to develop flexible alternating current transmission system (FACTS) application guidelines and operating strategies and to provide a technology roadmap for the renewed value proposition of FACTS devices with increased penetration of renewable energy resources, the need for power flow control over existing transmission lines, and tighter voltage regulation at transmission buses. This project focuses on developing technical and economic guidelines for ...

2012-12-17T23:59:59.000Z

174

Semiconductor-based, large-area, flexible, electronic devices  

SciTech Connect

Novel articles and methods to fabricate the same resulting in flexible, large-area, triaxially textured, single-crystal or single-crystal-like, semiconductor-based, electronic devices are disclosed. Potential applications of resulting articles are in areas of photovoltaic devices, flat-panel displays, thermophotovoltaic devices, ferroelectric devices, light emitting diode devices, computer hard disc drive devices, magnetoresistance based devices, photoluminescence based devices, non-volatile memory devices, dielectric devices, thermoelectric devices and quantum dot laser devices.

Goyal, Amit (Knoxville, TN)

2011-03-15T23:59:59.000Z

175

Microsoft Word - Booz Allen Hamilton Fuel Flexibility Final Report.doc  

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

Analysis of Fuel Flexibility Analysis of Fuel Flexibility Opportunities and Constraints in the U.S. Industrial Sector November 15, 2007 Prepared for the: Industrial Technologies Program Office of Energy Efficiency and Renewable Energy United States Department of Energy i TABLE OF CONTENTS ES. Executive Summary ................................................................................................. 1 1.0 Fuel Flexibility Study Process .......................................................................... 7 2.0 Is fuel flexibility a reasonable alternative to natural gas?........................ 10 2.1 Natural gas can be displaced by reconfiguring the industrial energy value chain ..............................................................................................................

176

Importance of Flexible Electricity Supply: Solar Integration Series. 1 of 3 (Brochure)  

DOE Green Energy (OSTI)

The first out of a series of three fact sheets describing the importance of flexible electricity supply.

Not Available

2011-05-01T23:59:59.000Z

177

Flexible Coal: Evolution from Baseload to Peaking Plant (Brochure)  

Science Conference Proceedings (OSTI)

Twenty-first century power systems, with higher penetration levels of low-carbon energy, smart grids, and other emerging technologies, will favor resources that have low marginal costs and provide system flexibility (e.g., the ability to cycle on and off to follow changes in variable renewable energy plant output). Questions remain about both the fate of coal plants in this scenario and whether they can cost-effectively continue to operate if they cycle routinely. The experience from the CGS plant demonstrates that coal plants can become flexible resources. This flexibility - namely the ability to cycle on and off and run at lower output (below 40% of capacity) - requires limited hardware modifications but extensive modifications to operational practice. Cycling does damage the plant and impact its life expectancy compared to baseload operations. Nevertheless, strategic modifications, proactive inspections and training programs, among other operational changes to accommodate cycling, can minimize the extent of damage and optimize the cost of maintenance. CGS's cycling, but not necessarily the associated price tag, is replicable. Context - namely, power market opportunities and composition of the generation fleet - will help determine for other coal plants the optimal balance between the level of cycling-related forced outages and the level of capital investment required to minimize those outages. Replicating CGS's experience elsewhere will likely require a higher acceptance of forced outages than regulators and plant operators are accustomed to; however, an increase in strategic maintenance can minimize the impact on outage rates.

Cochran, J.; Lew, D.; Kumar, N.

2013-12-01T23:59:59.000Z

178

Compression effects on pressure loss in flexible HVAC ducts  

SciTech Connect

A study was conducted to evaluate the effect of compression on pressure drop in flexible, spiral wire helix core ducts used in residential and light commercial applications. Ducts of 6 inches, 8 inches and 10 inches (150, 200 and 250 mm) nominal diameters were tested under different compression configurations following ASHRAE Standard 120-1999--Methods of Testing to Determine Flow Resistance of HVAC Air Ducts and Fittings. The results showed that the available published references tend to underestimate the effects of compression. The study demonstrated that moderate compression in flexible ducts, typical of that often seen in field installations, could increase the pressure drop by a factor of four, while further compression could increase the pressure drop by factors close to ten. The results proved that the pressure drop correction factor for compressed ducts cannot be independent of the duct size, as suggested by ASHRAE Fundamentals, and therefore a new relationship was developed for better quantification of the pressure drop in flexible ducts. This study also suggests potential improvements to ASHRAE Standard 120-1999 and provides new data for duct design.

Abushakra, Bass; Walker, Iain S.; Sherman, Max H.

2002-07-01T23:59:59.000Z

179

RELIABLE RADIOGRAPHIC INSPECTION OF FLEXIBLE RISERS FOR THE OIL INDUSTRY  

Science Conference Proceedings (OSTI)

Flexible risers are composite tubular structures manufactured by the concentric assemblage of cylindrical polymeric and helically wound metallic layers employed to convey pressurized fluids such as oil, gas and water in the ocean environment. The metallic layers account for the flexible risers' structural strength and are dimensioned according to the static and dynamic loads. They are usually installed in a free hanging catenary configuration and are subjected to the direct action of waves and marine currents and wave induced motions from the oil production platform. The fatigue rupture of wire armours in the end fitting or within the riser segment protected by the bend stiffener is an object of major concern. Integrity models have been developed, however inspection techniques are mandatory to ensure that failure is detected. Gammagraphy has been used as a common inspection technique in all regions of the flexible riser, mainly with the single wall-single view method. On the other side, there is not any qualified radiographic procedure to this kind of structure. Radiographic simulation was adopted and its validation with actual gammagraphies and establishment of radiographic parameters to complex radiation geometries were done. Results show the viability of the radiographic inspection analyzing the armour wires' rupture and the displacement between wires.

Almeida, Romulo M.; Rebello, Joao Marcos A. [Department of Metallurgical and Materials Engineering COPPE/UFRJ-Federal University of Rio de Janeiro P.O. Box 68505 CEP 21941-972, Rio de Janeiro RJ (Brazil); Vaz, Murilo A. [Department of Ocean Engineering-COPPE/UFRJ (Brazil)

2010-02-22T23:59:59.000Z

180

Affective incoherence: When affective concepts and embodied reactions clash  

E-Print Network (OSTI)

Affective Incoherence: When Affective Concepts and Embodied Reactions Clash David B. Centerbar University of Massachusetts Medical School Simone Schnall University of Plymouth Gerald L. Clore University of Virginia Erika D. Garvin University... . Such internally generated feelings may be compelling because they are experienced in a manner similar to the sensory feelings elicited by external stimuli. Unlike conceptual knowledge, which is indirect and subject to verification (Kruglanski, 1989), affective...

Centerbar, David; Schnall, Simone; Clore, Gerald L.; Garvin, Erica

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flexibility primarily affects" 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

FLIP: A flexible interconnection protocol for heterogeneous internetworking  

E-Print Network (OSTI)

This paper describes the Flexible Interconnection Protocol, or FLIP, whose main goal is to allow interconnection of heterogeneous devices with varying power, processing, and communication capabilities, ranging from simple sensors to more powerful computing devices such as laptops and desktops. The vision is that FLIP will be used to interconnect such devices forming clouds in the farthest branches/leaves of the Internet, while still providing connectivity with the existing IP-based Internet infrastructure. Through its flexible, customizable headers FLIP integrates just the functions required by a given application and that can be handled by the underlying device. Simple devices like sensors will benefit from incurring close to optimal overhead saving not only bandwidth, but, more importantly, energy. More sophisticated devices in the cloud can be responsible for implementing more complex functions like reliable/ordered data delivery, communication with other device clouds and with the IP infrastructure. FLIP is designed to provide a basic substrate on which to build network- and transport-level functionality. In heterogeneous environments, FLIP allows devices with varying capabilities to coexist and interoperate under the same network infrastructure. We present the basic design of FLIP and describe its implementation under Linux. We also report on FLIPs performance when providing IPv4 and IPv6 as well as transport-layer functionality a la TCP and UDP. We show FLIPs energy efficiency in different sensor network scenarios. For example, we use FLIP to implement the directed diffusion communication paradigm and obtain an improvement of 50 % in energy savings over an existing directed diffusion implementation. Finally, we showcase FLIPs flexibility by demonstrating its ability to incorporate new protocol functions

Ignacio Solis; Katia Obraczka

2004-01-01T23:59:59.000Z

182

EV Everywhere Grand Challenge - Charging Infrastructure Enabling Flexible EV Design  

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

Charging Infrastructure Charging Infrastructure Enabling Flexible EV Design July 30, 2012 Lee Slezak Technology Manager, Vehicle Systems Vehicle Technologies Program U.S. Department of Energy 1000 Independence Avenue Washington DC 20585 eere.energy.gov Outline * Purpose - Establish Vision for Achieving EV Everywhere * Enable Strong Demand for EVs * Supply of Vehicles and Infrastructure * Current Status of Infrastructure and Vehicles * Desired Workshop Outputs * Approach - Design Candidate Infrastructure Strategies for 2022 10/12/2012 2 eere.energy.gov Achieving EV Everywhere - Enable Strong Demand for EVs 10/12/2012 3 EV Everywhere Consumer Acceptance EV Everywhere Consumer Acceptance Electric Vehicles * Safe * Cost Competitive * Utility meets consumer needs * Range

183

Typical Boiler Tube Damage from Flexible Operation or Cycling  

Science Conference Proceedings (OSTI)

Power generation plants are under increasing pressure to cycle the boiler system to meet demand at the exact time it occurs. To survive in the new commercial sphere, it is essential that we adjust to a dynamic, flexible operating paradigm. The ability to adjust the overall system response to load demand is paramount; cycling is a fact in todays power-for-profit business dynamic.The challenge is that for most fossil power plants in operation todaywhich were designed and ...

2013-12-19T23:59:59.000Z

184

Low-cost flexible packaging materials for batteries.  

DOE Green Energy (OSTI)

Considerable cost savings can be realized if the metal container used for lithium-based batteries is replaced with a flexible multi-laminate containment commonly used in the food packaging industry. This laminate structure must have air, moisture, and electrolyte barrier capabilities, be resistant to hydrogen-fluoride attack, and be heat-sealable. After extensive screening of commercial films, the polyethylene and polypropylene classes of polymers were found to have an adequate combination of mechanical, permeation, and seal-strength properties. The search for a better film and adhesive is ongoing.

Jansen, A. N.; Amine, K.; Newman, A. E.; Vissers, D. R.; Henriksen, G. L.; Chemical Engineering

2002-03-01T23:59:59.000Z

185

Non-pulsed electrochemical impregnation of flexible metallic battery plaques  

SciTech Connect

A method of loading active battery material into porous, flexible, metallic battery plaques, comprises the following steps: precipitating nickel hydroxide active material within the plaque, by making the plaque cathodic, at a high current density, in an electro-precipitation cell also containing a consumable nickel anode and a solution comprising nickel nitrate, having a pH of between 2.0 and 2.8; electrochemically oxidizing the precipitate in caustic formation solution; and repeating the electro-precipitation step at a low current density.

Maskalick, Nicholas J. (Pittsburgh, PA)

1982-01-01T23:59:59.000Z

186

Flexible edge seal for vacuum insulating glazing units  

DOE Patents (OSTI)

A flexible edge seal is provided for a vacuum insulating glazing unit having a first glass pane and a second glass pane spaced-apart from the first. The edge seal comprises a seal member formed of a hermetically bondable material and having a first end, a second end and a center section disposed therebetween. The first end is hermetically bondable to a first glass pane. The second end is hermetically bondable to a second glass pane. The center section comprises a plurality of convolutes.

Bettger, Kenneth J.; Stark, David H.

2012-12-11T23:59:59.000Z

187

Printable, flexible and stretchable diamond for thermal management  

DOE Patents (OSTI)

Various heat-sinked components and methods of making heat-sinked components are disclosed where diamond in thermal contact with one or more heat-generating components are capable of dissipating heat, thereby providing thermally-regulated components. Thermally conductive diamond is provided in patterns capable of providing efficient and maximum heat transfer away from components that may be susceptible to damage by elevated temperatures. The devices and methods are used to cool flexible electronics, integrated circuits and other complex electronics that tend to generate significant heat. Also provided are methods of making printable diamond patterns that can be used in a range of devices and device components.

Rogers, John A; Kim, Tae Ho; Choi, Won Mook; Kim, Dae Hyeong; Meitl, Matthew; Menard, Etienne; Carlisle, John

2013-06-25T23:59:59.000Z

188

Specificity, flexibility and valence of DNA bonds guide emulsion architecture  

E-Print Network (OSTI)

The specificity and thermal reversibility of DNA interactions have enabled the self-assembly of crystal structures, self-replicating materials and colloidal molecules. Grafting DNA onto liquid interfaces of emulsions leads to exciting new architectural possibilities due to the mobility of the DNA ligands and the patches they form between bound droplets. Here we show that the size and number of these adhesion patches (valency) can be controlled. Valence 2 leads to flexible polymers of emulsion droplets, while valence above 4 leads to rigid droplet networks. A simple thermodynamic model quantitatively describes the increase in the patch size with droplet radii, DNA concentration and the stiffness of the tether to the sticky-end. The patches are formed between droplets with complementary DNA strands or alternatively with complementary colloidal nanoparticles to mediate DNA binding between droplets. This emulsion system opens the route to directed self-assembly of more complex structures through distinct DNA bonds with varying strengths and controlled valence and flexibility.

Lang Feng; Lea-Laetitia Pontani; Remi Dreyfus; Paul Chaikin; Jasna Brujic

2013-02-28T23:59:59.000Z

189

Improved HEPA Filter Technology for Flexible and Rigid Containment Barriers  

SciTech Connect

Safety and reliability in glovebox operations can be significantly improved and waste packaging efficiencies can be increased by inserting flexible, lightweight, high capacity HEPA filters into the walls of plastic sheet barriers. This HEPA filter/barrier technology can be adapted to a wide variety of applications: disposable waste bags, protective environmental barriers for electronic equipment, single or multiple use glovebag assemblies, flexible glovebox wall elements, and room partitions. These reliable and inexpensive filtered barriers have many uses in fields such as radioactive waste processing, HVAC filter changeout, vapor or grit blasting, asbestos cleanup, pharmaceutical, medical, biological, and electronic equipment containment. The applications can result in significant cost savings, improved operational reliability and safety, and total waste volume reduction. This technology was developed at the Argonne National Laboratory-West (ANL-W) in 1993 and has been used at ANL-W since then at the TRU Waste Characterization Chamber Gloveboxes. Another 1998 AGS Conference paper titled "TRU Waste Characterization Gloveboxes", presented by Mr. David Duncan of ANL-W, describes these boxes.

P. A. Pinson

1998-07-01T23:59:59.000Z

190

25 Year Lifetime for Flexible Buildings Integrated Photovoltaics  

SciTech Connect

Although preliminary proof-of-principle of the efficacy of barrier materials and processes, first developed by Battelle at PNNL and commercialized by Vitex, has been demonstrated at the laboratory scale, there are several challenges to the practical commercial implementation of these developments in the Buildings Integrated Photovoltaics (BIPV) market. Two important issues that are addressed in this project are identifying a low cost substrate material that can survive in the outside environment (rain, heat, dust, hail, etc.) for 25 years and developing an encapsulation method for the photovoltaic (PV) cells that can meet the required barrier performance without driving the cost of the total barrier package out of range (remaining below $3.00/Wp). Without these solutions, current encapsulation technologies will limit the use of PV for BIPV applications. Flexible, light-weight packaging that can withstand 25 years in the field is required for a totally flexible integrated PV package. The benefit of this research is to make substantial progress in the development of a cost-effective, viable thin film barrier package which will be a critical enabling technology to meet the Solar America Initiative cost and device reliability goals, and to make photovoltaics (PV) more cost-competitive with electricity generated using fossil fuels. Increased PV installations will enable increased US electrical capacity and reduce dependence on imported oil through increased utilization of a widely abundant source of renewable energy (sunlight).

Gross, Mark E.

2010-07-10T23:59:59.000Z

191

Flexible and robust strategies for waste management in Sweden  

SciTech Connect

Treatment of solid waste continues to be on the political agenda. Waste disposal issues are often viewed from an environmental perspective, but economic and social aspects also need to be considered when deciding on waste strategies and policy instruments. The aim of this paper is to suggest flexible and robust strategies for waste management in Sweden, and to discuss different policy instruments. Emphasis is on environmental aspects, but social and economic aspects are also considered. The results show that most waste treatment methods have a role to play in a robust and flexible integrated waste management system, and that the waste hierarchy is valid as a rule of thumb from an environmental perspective. A review of social aspects shows that there is a general willingness among people to source separate wastes. A package of policy instruments can include landfill tax, an incineration tax which is differentiated with respect to the content of fossil fuels and a weight based incineration tax, as well as support to the use of biogas and recycled materials.

Finnveden, Goeran [Division of Environmental Strategies Research - fms, Royal Institute of Technology, SE-100 44 Stockholm (Sweden)], E-mail: goran.finnveden@infra.kth.se; Bjoerklund, Anna [Division of Environmental Strategies Research - fms, Royal Institute of Technology, SE-100 44 Stockholm (Sweden); Reich, Marcus Carlsson [Swedish Environmental Protection Agency, SE-106 48 Stockholm (Sweden); Eriksson, Ola [Technology and Built Environment, University of Gaevle, SE-801 76 Gaevle (Sweden); Soerbom, Adrienne [Department of Sociology, Stockholm University, SE-106 91 Stockholm (Sweden)

2007-07-01T23:59:59.000Z

192

Semi-flexible bimetal-based thermal energy harvesters  

E-Print Network (OSTI)

This paper introduces a new semi-flexible device able to turn thermal gradients into electricity by using a curved bimetal coupled to an electret-based converter. In fact, a two-steps conversion is carried out: (i) a curved bimetal turns the thermal gradient into a mechanical oscillation that is then (ii) converted into electricity thanks to an electrostatic converter using electrets in Teflon (r). The semi-flexible and low cost design of these new energy converters pave the way to mass production over large areas of thermal energy harvesters. Raw output powers up to 13.46uW per device were reached on a hot source at 60{\\deg}C and forced convection. Then, a DC-to-DC flyback converter has been sized to turn the energy harvesters' raw output powers into a viable supply source for an electronic circuit (DC-3V). At the end, 10uW of directly usable output power were reached with 3 devices, which is compatible with Wireless Sensor Networks powering applications. Please cite as : S Boisseau et al 2013 Smart Mater. S...

Boisseau, S; Monfray, S; Puscasu, O; Skotnicki, T; 10.1088/0964-1726/22/2/025021

2013-01-01T23:59:59.000Z

193

Vehiculos de Combustible Flexible: Brindando Opciones en Combustible Renovable (Flexible Fuel Vehicles: Providing a Renewable Fuel Choice) (Fact Sheet)  

SciTech Connect

The fact sheet discusses how E85 affects vehicle performance, the costs and benefits of using E85, and how to find E85 station locations.

2010-05-01T23:59:59.000Z

194

Metrics and Methods for Consideration of Flexibility in Power System Planning  

Science Conference Proceedings (OSTI)

This report describes work done in 2012 as part of the Grid Planning Strategic and Flexible Planning project. This project is concerned with methods and metrics to assess power system flexibility to manage variability and uncertainty. In 2011, a two-tiered approach to this issue was proposed, and aspects of system flexibility were demonstrated. This years work continued the development of both high-level screening and detailed, simulation-based metrics and methods for assessing ...

2012-12-31T23:59:59.000Z

195

ARAC: A flexible real-time dose consequence assessment system  

Science Conference Proceedings (OSTI)

Since its beginning, the Atmospheric Release Advisory Capability (ARAC), an emergency radiological dose assessment service of the US Government, has been called on to do consequence assessments for releases into the atmosphere of radionuclides and a variety of other substances. Some of the more noteworthy emergency responses have been for the Three Mile Island and Chernobyl nuclear power reactor accidents, and more recently, for a cloud of gases from a rail-car spill into the Sacramento river of the herbicide metam sodium, smoke from hundreds of burning oil wells in Kuwait, and ash clouds from the eruption of Mt. Pinatubo. The spatial scales of these responses range from local, to regional, to global, and the response periods from hours, to weeks, to months. Because of the variety of requirements of each unique assessment, ARAC has developed and maintains a flexible system of people, computer software and hardware.

Ellis, J.S.; Sullivan, T.J.

1993-10-07T23:59:59.000Z

196

DEVELOPMENT OF A FLEXIBLE, MULTIZONE, MULTIFAMILY BUILDING SIMULATION MODEL  

SciTech Connect

Weatherization of multifamily buildings is gaining increased attention in the U.S. Available energy audit tools for multifamily buildings were found to need desirable improvements. On the wish list of field experts for enhanced features was the basic ability to model multizone buildings (i.e., one thermal zone per dwelling unit) with simplified user inputs, which allows a better analysis of decentralized and centralized HVAC and domestic hot water systems of multifamily buildings without having to create detailed building models. To address the desired capabilities, development of an enhanced energy audit tool was begun in 2011. The tool is a strategically structured, flexible, one-zone-per-unit, DOE-2.1e model coupled with a simplified user interface to model small to large multifamily buildings with decentralized or centralized systems and associated energy measures. This paper describes the modeling concept and its implementation.

Malhotra, Mini [ORNL; Im, Piljae [ORNL

2012-01-01T23:59:59.000Z

197

A genetic algorithm based method for docking flexible molecules  

SciTech Connect

The authors describe a computational method for docking flexible molecules into protein binding sites. The method uses a genetic algorithm (GA) to search the combined conformation/orientation space of the molecule to find low energy conformation. Several techniques are described that increase the efficiency of the basic search method. These include the use of several interacting GA subpopulations or niches; the use of a growing algorithm that initially docks only a small part of the molecule; and the use of gradient minimization during the search. To illustrate the method, they dock Cbz-GlyP-Leu-Leu (ZGLL) into thermolysin. This system was chosen because a well refined crystal structure is available and because another docking method had previously been tested on this system. Their method is able to find conformations that lie physically close to and in some cases lower in energy than the crystal conformation in reasonable periods of time on readily available hardware.

Judson, R.S. [Sandia National Labs., Livermore, CA (United States); Jaeger, E.P.; Treasurywala, A.M. [Sterling-Winthrop Inc., Collegeville, PA (United States)

1993-11-01T23:59:59.000Z

198

Accordian-folded boot shield for flexible swivel connection  

DOE Patents (OSTI)

A flexible swivel boot connector for connecting a first boot shield section to a second boot shield section, both first and second boot sections having openings therethrough, the second boot section having at least two adjacent accordian folds at the end having the opening, the second boot section being positioned through the opening of the first boot section such that a first of the accordian folds is within the first boot section and a second of the accordian folds is outside of the first boot, includes first and second annular discs, the first disc being positioned within and across the first accordian fold, the second disc being positioned within and across the second accordian fold, such that the first boot section is moveably and rigidly connected between the first and second accordian folds of the second boot section.

Hoh, Joseph C. (Naperville, IL)

1986-01-01T23:59:59.000Z

199

Apparatus And Method Of Using Flexible Printed Circuit Board In Optical Transceiver Device  

DOE Patents (OSTI)

This invention relates to a flexible printed circuit board that is used in connection with an optical transmitter, receiver or transceiver module. In one embodiment, the flexible printed circuit board has flexible metal layers in between flexible insulating layers, and the circuit board comprises: (1) a main body region orientated in a first direction having at least one electrical or optoelectronic device; (2) a plurality of electrical contact pads integrated into the main body region, where the electrical contact pads function to connect the flexible printed circuit board to an external environment; (3) a buckle region extending from one end of the main body region; and (4) a head region extending from one end of the buckle region, and where the head region is orientated so that it is at an angle relative to the direction of the main body region. The electrical contact pads may be ball grid arrays, solder balls or land-grid arrays, and they function to connect the circuit board to an external environment. A driver or amplifier chip may be adapted to the head region of the flexible printed circuit board. In another embodiment, a heat spreader passes along a surface of the head region of the flexible printed circuit board, and a window is formed in the head region of the flexible printed circuit board. Optoelectronic devices are adapted to the head spreader in such a manner that they are accessible through the window in the flexible printed circuit board.

Anderson, Gene R. (Albuquerque, NM); Armendariz, Marcelino G. (Albuquerque, NM); Bryan, Robert P. (Albuquerque, NM); Carson, Richard F. (Albuquerque, NM); Duckett, III, Edwin B. (Albuquerque, NM); McCormick, Frederick B. (Albuquerque, NM); Peterson, David W. (Sandia Park, NM); Peterson, Gary D. (Albuquerque, NM); Reysen, Bill H. (Lafayette, CO)

2005-03-15T23:59:59.000Z

200

Flexible, Thin, and Rechargeable Li-ion Battery Based on Semi ...  

Science Conference Proceedings (OSTI)

Symposium, Energy Storage III: Materials, Systems and Applications Symposium. Presentation Title, Flexible, Thin, and Rechargeable Li-ion Battery Based on...

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201

Low-cost, Efficient, Flexible Solar Cells with 3D Nanopillar ...  

The technology was also used to produce solar modules on flexible substrates that offer more efficient light ... Solar panels; Consumer electronics; More Information ...

202

Development of a large scale flexible LED display matrix for the screen industry.  

E-Print Network (OSTI)

??This project addresses the viability of lightweight, low power consumption, flexible, large format LED screens. The investigation encompasses all aspects of the electrical and mechanical (more)

Xavier, Dominic Michael

2013-01-01T23:59:59.000Z

203

Use of Compliant Materials in the Fabrication of a Flexible Utah ...  

Science Conference Proceedings (OSTI)

This research replaces the traditional UEA glass electrode insulation material with flexible materials. Polydimethylsiloxane (PDMS) is used to fill the regions...

204

Title Flexible Work Arrangements: Attraction to Flextime, Flexplace, or Both?  

E-Print Network (OSTI)

Flexible work arrangements (FWAs) are widely implemented in organizations today. Yet very little information exists about why individuals are attracted to organizations that offer FWAs. The purpose of the current study was to tease apart the influence of the dimensions of FWAs: flextime and flexplace (both structural and perceived), as well as the combination of the two on organizational attraction and anticipated organizational support. Individual difference variables that have the potential to impact individuals attraction to organizations that offer FWAs were also examined as moderating variables. The mediating effect of anticipated organizational support was also examined. Upper level undergraduate students (N = 190) participated in a 3x3 within-subjects experiment in which they rated nine hypothetical organizations that varied in flextime and flexplace. Results from multilevel analysis indicated that significant variance in organizational attraction as well as anticipated organizational support is attributable to the type of work arrangement offered (both flexibility in time and place), with flextime having a stronger effect than flexplace. Contrary to expectation, effects were independent; there was not a significant interaction between flextime and flexplace. The relationship between (both structural and perceived) flexplace and organizational attraction was stronger for individuals who prefer to integrate their work and nonwork roles. Additionally, the relationship between (both structural and perceived) flextime and organizational attraction was stronger for individuals who reported a stronger need for medical treatment. Finally, the relationship between perceived flextime and organizational attraction as well as the relationship between perceived flexplace and organizational attraction were stronger for those who reported more role demands. Contrary to expectation, sociability did not moderate the flexplace-organizational attraction/anticipated organizational support relationships. Limitations and future directions for research on FWAs are discussed.

Thompson, Rebecca

2011-12-01T23:59:59.000Z

205

Enabling Advanced Modeling and Simulations for Fuel-Flexible Combustors  

Science Conference Proceedings (OSTI)

The overall goal of the present project is to enable advanced modeling and simulations for the design and optimization of fuel-flexible turbine combustors. For this purpose we use a high-fidelity, extensively-tested large-eddy simulation (LES) code and state-of-the-art models for premixed/partially-premixed turbulent combustion developed in the PI's group. In the frame of the present project, these techniques are applied, assessed, and improved for hydrogen enriched premixed and partially premixed gas-turbine combustion. Our innovative approaches include a completely consistent description of flame propagation, a coupled progress variable/level set method to resolve the detailed flame structure, and incorporation of thermal-diffusion (non-unity Lewis number) effects. In addition, we have developed a general flamelet-type transformation holding in the limits of both non-premixed and premixed burning. As a result, a model for partially premixed combustion has been derived. The coupled progress variable/level method and the general flamelet tranformation were validated by LES of a lean-premixed low-swirl burner that has been studied experimentally at Lawrence Berkeley National Laboratory. The model is extended to include the non-unity Lewis number effects, which play a critical role in fuel-flexible combustor with high hydrogen content fuel. More specifically, a two-scalar model for lean hydrogen and hydrogen-enriched combustion is developed and validated against experimental and direct numerical simulation (DNS) data. Results are presented to emphasize the importance of non-unity Lewis number effects in the lean-premixed low-swirl burner of interest in this project. The proposed model gives improved results, which shows that the inclusion of the non-unity Lewis number effects is essential for accurate prediction of the lean-premixed low-swirl flame.

Heinz Pitsch

2010-05-31T23:59:59.000Z

206

Prefrontal cortical mechanisms underlying individual differences in cognitive flexibility and stability  

Science Conference Proceedings (OSTI)

The pFC is critical for cognitive flexibility (i.e., our ability to flexibly adjust behavior to changing environmental demands), but also for cognitive stability (i.e., our ability to follow behavioral plans in the face of distraction). Behavioral research ...

Diana J. N. Armbruster; Kai Ueltzhffer; Ulrike Basten; Christian J. Fiebach

2012-12-01T23:59:59.000Z

207

A robust motion design technique for flexible-jointed manipulation systems  

Science Conference Proceedings (OSTI)

This paper presents a robust input shaping technique that significantly reduces (almost eliminates) the residual vibration of manipulation systems typified by a flexible-jointed robot manipulator. The technique consists of two stages. In the first stage, ... Keywords: Flexible-jointed robots, Motion design/input shaping, Residual vibration elimination, Robustness

Grsel Alici; Sadettin Kapucu; Sedat Bayse

2006-01-01T23:59:59.000Z

208

Flexible and transparent supercapacitor based on In2O3 nanowire/carbon nanotube heterogeneous films  

E-Print Network (OSTI)

Flexible and transparent supercapacitor based on In2O3 nanowire/carbon nanotube heterogeneous films; accepted 17 December 2008; published online 28 January 2009 In this paper, a supercapacitor galvanostatic measurements. In addition, to study the stability of flexible and transparent supercapacitor

Zhou, Chongwu

209

Estimating Flexibility Requirements in a Demand-Driven Lean/JIT Environment  

Science Conference Proceedings (OSTI)

Demand-driven JIT manufacturing is based on the assumption of a level stable demand rate. This is however not the reality experienced by most companies. To handle fluctuations from a level stable demand rate, the manufacturing system needs flexibility. ... Keywords: JIT, capacity matching, flexibility

Peter Nielsen; Kenn Steger-Jensen

2008-06-01T23:59:59.000Z

210

A robust genetic algorithm for scheduling realistic hybrid flexible flow line problems  

Science Conference Proceedings (OSTI)

This article addresses the problem of hybrid flexible flow line where some constraints are considered to alleviate the chasm between the real-world industries scheduling and the production scheduling theories. Sequence-dependent setup times, machine ... Keywords: Hybrid flexible flow shop, Realistic scheduling, Response surface methodology, Sequence-dependent setup times, Time lags

M. Zandieh; E. Mozaffari; M. Gholami

2010-12-01T23:59:59.000Z

211

High density phase change data on flexible substrates by thermal curing type nanoimprint lithography  

Science Conference Proceedings (OSTI)

In this study, high density phase change nano-pillar device (Tera-bit per inch^2 data density) was fabricated on flexible substrates by thermal curing type nanoimprint lithography with high throughput at a relatively low temperature (120^oC). Phase change ... Keywords: Flexible nano-device, Nanoimprint lithography, Phase change memory, Phase change nano-pillar device, Tera-bit record

Sung-Hoon Hong; Jun-Ho Jeong; Kang-In Kim; Heon Lee

2011-08-01T23:59:59.000Z

212

The implementation of polarizable and flexible models in molecular dynamics simulations  

Science Conference Proceedings (OSTI)

We discuss a new methodology for implementing polarizable and flexible molecular models - the fluctuating charge and intramolecular potential (fCINTRA) method - in Molecular Dynamics (MD) simulations. An example has been provided for ethanol. In these ... Keywords: message passing interface, molecular dynamics simulation, polarizable and flexible model

Shihao Wang; Natalie M. Cann

2009-06-01T23:59:59.000Z

213

Improving protein flexibility predictions by combining statistical sampling with a mean-field virtual Pebble Game  

Science Conference Proceedings (OSTI)

The Pebble Game (PG) algorithm is an efficient method to characterize protein flexibility. The PG calculates several mechanical graph rigidity quantities based on a network of chemical interactions. Because noncovalent chemical interactions continually ... Keywords: Pebble Game, graph rigidity, protein flexibility, rigid cluster decomposition

Luis C. Gonzlez; Dennis R. Livesay; Donald J. Jacobs

2011-08-01T23:59:59.000Z

214

Cooperative Control of a 3D Dual-Flexible-Arm Robot  

Science Conference Proceedings (OSTI)

This paper discusses cooperative control of a dual-flexible-arm robot to handle a rigid object in three-dimensional space. The proposed control scheme integrates hybrid position/force control and vibration suppression control. To derive the control scheme, ... Keywords: cooperative control, dual-flexible-arm robot, internal force, lumped-parameter model, task vector, vibration control

Mitsuhiro Yamano; Jin-Soo Kim; Atsushi Konno; Masaru Uchiyama

2004-01-01T23:59:59.000Z

215

The Finite Segment Method for Recursive Approach to Flexible Multibody Dynamics  

Science Conference Proceedings (OSTI)

In this paper we study the dynamics and kinematics of serial flexible link manipulators using the finite segment method. In our analysis the flexible manipulators are divided into a set of rigid bodies coupled with springs and dampers. The dynamic equations ...

Hongli Sun; Hongtao Wu; Bing Shao; Fuyang Tian

2009-05-01T23:59:59.000Z

216

A Flexible Online Metadata Editing and Management System  

SciTech Connect

A metadata editing and management system is being developed employing state of the art XML technologies. A modular and distributed design was chosen for scalability, flexibility, options for customizations, and the possibility to add more functionality at a later stage. The system consists of a desktop design tool or schema walker used to generate code for the actual online editor, a native XML database, and an online user access management application. The design tool is a Java Swing application that reads an XML schema, provides the designer with options to combine input fields into online forms and give the fields user friendly tags. Based on design decisions, the tool generates code for the online metadata editor. The code generated is an implementation of the XForms standard using the Orbeon Framework. The design tool fulfills two requirements: First, data entry forms based on one schema may be customized at design time and second data entry applications may be generated for any valid XML schema without relying on custom information in the schema. However, the customized information generated at design time is saved in a configuration file which may be re-used and changed again in the design tool. Future developments will add functionality to the design tool to integrate help text, tool tips, project specific keyword lists, and thesaurus services. Additional styling of the finished editor is accomplished via cascading style sheets which may be further customized and different look-and-feels may be accumulated through the community process. The customized editor produces XML files in compliance with the original schema, however, data from the current page is saved into a native XML database whenever the user moves to the next screen or pushes the save button independently of validity. Currently the system uses the open source XML database eXist for storage and management, which comes with third party online and desktop management tools. However, access to metadata files in the application introduced here is managed in a custom online module, using a MySQL backend accessed by a simple Java Server Faces front end. A flexible system with three grouping options, organization, group and single editing access is provided. Three levels were chosen to distribute administrative responsibilities and handle the common situation of an information manager entering the bulk of the metadata but leave specifics to the actual data provider.

Aguilar, Raul [Arizona State University; Pan, Jerry Yun [ORNL; Gries, Corinna [Arizona State University; Inigo, Gil San [University of New Mexico, Albuquerque; Palanisamy, Giri [ORNL

2010-01-01T23:59:59.000Z

217

Flexible barrier film, method of forming same, and organic electronic device including same  

DOE Patents (OSTI)

A flexible barrier film has a thickness of from greater than zero to less than 5,000 nanometers and a water vapor transmission rate of no more than 1.times.10.sup.-2 g/m.sup.2/day at 22.degree. C. and 47% relative humidity. The flexible barrier film is formed from a composition, which comprises a multi-functional acrylate. The composition further comprises the reaction product of an alkoxy-functional organometallic compound and an alkoxy-functional organosilicon compound. A method of forming the flexible barrier film includes the steps of disposing the composition on a substrate and curing the composition to form the flexible barrier film. The flexible barrier film may be utilized in organic electronic devices.

Blizzard, John; Tonge, James Steven; Weidner, William Kenneth

2013-03-26T23:59:59.000Z

218

Predicting Ignition Delay for Gas Turbine Fuel Flexibility  

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

Ignition Delay for Ignition Delay for Gas Turbine Fuel Flexibility 15 μm * Low emission combustion systems have been carefully optimized for natural gas * Future fuel diversity (including H2 containing fuels) may generate auto-ignition damage * Existing theories vary in predicting propensity for auto-ignition damage * Theory A vs Theory B shows factor of 100 difference-which is right? * UC Irvine improved and validated design tools for ignition delay allow designers to evaluate the risk for auto-ignition in advanced combustion systems with future fuels * Models are available to engine OEM's to shorten design cycle time and save $$ UC Irvine Scott Samuelsen / Vince McDonell #112 1000/T (1/K) 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 τ [O 2 ] 0.5 [F] 0.25 (sec(mol/cm 3 ) 0.75 ) 10 -10 10 -9 10 -8 10 -7 10 -6 10 -5

219

Flexible hydrogen plant utilizing multiple refinery hydrocarbon streams  

Science Conference Proceedings (OSTI)

Numerous processes are available to produce hydrogen, however, steam reforming is still the dominant and currently preferred process because it can economically process a variety of refinery feedstocks into hydrogen. This paper discusses the Air Products 88 MMSCFD hydrogen plant built by KTI, adjacent to Shell`s Martinez refinery, which utilizes up to eight separate refinery hydrocarbon streams as feed and fuel for the production of hydrogen in the steam reforming unit. The integration of refinery hydrocarbon purge streams, normally sent to fuel, allows greater flexibility in refinery operations and increases the overall refinery fuel efficiencies. The hydrogen plant also incorporates a number of process control design features to enhance reliability, such as two out of three voting systems, in-line sparing, and reduced bed PSA operation. The final section of the paper describes the environmental features of the plant required for operation in the Bay Area Air Quality Management District (BAAQMD). Air Products and KTI designed BACT features into the hydrogen plant to minimize emissions from the facility.

Kramer, K.A.; Patel, N.M. [Air Products and Chemicals Inc., Allentown, PA (United States); Sekhri, S. [Kinetics Technology International Corp., San Dimas, CA (United States); Brown, M.G. [Shell Oil Products Co., Martinez, CA (United States)

1996-12-01T23:59:59.000Z

220

Nuclear hydrogen : an assessment of product flexibility and market viability.  

DOE Green Energy (OSTI)

Nuclear energy has the potential to play an important role in the future energy system as a large-scale source of hydrogen without greenhouse gas emissions. Thus far, economic studies of nuclear hydrogen tend to focus on the levelized cost of hydrogen without accounting for the risks and uncertainties that potential investors would face. We present a financial model based on real options theory to assess the profitability of different nuclear hydrogen production technologies in evolving electricity and hydrogen markets. The model uses Monte Carlo simulations to represent uncertainty in future hydrogen and electricity prices. It computes the expected value and the distribution of discounted profits from nuclear hydrogen production plants. Moreover, the model quantifies the value of the option to switch between hydrogen and electricity production, depending on what is more profitable to sell. We use the model to analyze the market viability of four potential nuclear hydrogen technologies and conclude that flexibility in output product is likely to add significant economic value for an investor in nuclear hydrogen. This should be taken into account in the development phase of nuclear hydrogen technologies.

Botterud, A.; Yildiz, B.; Conzelmann, G.; Petri, M.; Massachusetts Inst. of Tech.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flexibility primarily affects" 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

Agent Tcl: A flexible and secure mobile-agent system  

E-Print Network (OSTI)

An information agent manages all or a portion of a user's information space. The electronic resources in this space are often distributed across a network and can contain tremendous quantities of data. Mobile agents provide efficient access to such resources and are a powerful tool for implementing information agents. A mobile agent is an autonomous program that can migrate from machine to machine in a heterogeneous network. By migrating to the location of a resource, the agent can access the resource efficiently even if network conditions are poor or the resource has a low-level interface. Telescript is the best-known mobile-agent system. Telescript, however, requires the programmer to learn and work with a complex object-oriented language and a complex security model. Agent Tcl, on the other hand, is a simple, flexible, and secure system that is based on the Tcl scripting language and the Safe Tcl extension. In this paper we describe the architecture of Agent Tcl and its current implementation.

Robert S. Gray

1996-01-01T23:59:59.000Z

222

Flexible single molecule simulation of reaction-diffusion processes  

SciTech Connect

An algorithm is developed for simulation of the motion and reactions of single molecules at a microscopic level. The molecules diffuse in a solvent and react with each other or a polymer and molecules can dissociate. Such simulations are of interest e.g. in molecular biology. The algorithm is similar to the Green's function reaction dynamics (GFRD) algorithm by van Zon and ten Wolde where longer time steps can be taken by computing the probability density functions (PDFs) and then sample from the distribution functions. Our computation of the PDFs is much less complicated than GFRD and more flexible. The solution of the partial differential equation for the PDF is split into two steps to simplify the calculations. The sampling is without splitting error in two of the coordinate directions for a pair of molecules and a molecule-polymer interaction and is approximate in the third direction. The PDF is obtained either from an analytical solution or a numerical discretization. The errors due to the operator splitting, the partitioning of the system, and the numerical approximations are analyzed. The method is applied to three different systems involving up to four reactions. Comparisons with other mesoscopic and macroscopic models show excellent agreement.

Hellander, Stefan, E-mail: stefan.hellander@it.uu.s [Division of Scientific Computing, Department of Information Technology, Uppsala University, P.O. Box 337, SE-75105 Uppsala (Sweden); Loetstedt, Per, E-mail: perl@it.uu.s [Division of Scientific Computing, Department of Information Technology, Uppsala University, P.O. Box 337, SE-75105 Uppsala (Sweden)

2011-05-10T23:59:59.000Z

223

ABSIM. Simulation of Absorption Systems in Flexible and Modular Form  

Science Conference Proceedings (OSTI)

The computer code has been developed for simulation of absorption systems at steady-state in a flexible and modular form, making it possible to investigate various cycle configurations with different working fluids. The code is based on unit subroutines containing the governing equations for the system's components. When all the equations have been established, a mathematical solver routine is employed to solve them simultaneously. Property subroutines contained in a separate data base serve to provide thermodynamic properties of the working fluids. The code is user-oriented and requires a relatively simple input containing the given operating conditions and the working fluid at each state point. the user conveys to the computer an imagev of the cycle by specifying the different components and their interconnections. Based on this information, the program calculates the temperature, flowrate, concentration, pressure and vapor fraction at each state point in the system and the heat duty at each unit, from which the coefficient of performance may be determined. A graphical user-interface is provided to fcilitate interactive input and study of the output.

Grossman, G. (Israel Institute of Thechnology, Haifa, (Israel))

1994-06-01T23:59:59.000Z

224

ABSIM. Simulation of Absorption Systems in Flexible and Modular Form  

Science Conference Proceedings (OSTI)

The computer code has been developed for simulation of absorption systems at steady-state in a flexible and modular form, making it possible to investigate various cycle configurations with different working fluids. The code is based on unit subroutines containing the governing equations for the system`s components. When all the equations have been established, a mathematical solver routine is employed to solve them simultaneously. Property subroutines contained in a separate data base serve to provide thermodynamic properties of the working fluids. The code is user-oriented and requires a relatively simple input containing the given operating conditions and the working fluid at each state point. the user conveys to the computer an image of the cycle by specifying the different components and their interconnections. Based on this information, the program calculates the temperature, flowrate, concentration, pressure and vapor fraction at each state point in the system and the heat duty at each unit, from which the coefficient of performance may be determined. A graphical user-interface is provided to facilitate interactive input and study of the output.

Grossman, G. [Israel Institute of Thechnology, Haifa, (Israel)

1994-06-01T23:59:59.000Z

225

A flexible framework for secure and efficient program obfuscation.  

SciTech Connect

In this paper, we present a modular framework for constructing a secure and efficient program obfuscation scheme. Our approach, inspired by the obfuscation with respect to oracle machines model of [4], retains an interactive online protocol with an oracle, but relaxes the original computational and storage restrictions. We argue this is reasonable given the computational resources of modern personal devices. Furthermore, we relax the information-theoretic security requirement for computational security to utilize established cryptographic primitives. With this additional flexibility we are free to explore different cryptographic buildingblocks. Our approach combines authenticated encryption with private information retrieval to construct a secure program obfuscation framework. We give a formal specification of our framework, based on desired functionality and security properties, and provide an example instantiation. In particular, we implement AES in Galois/Counter Mode for authenticated encryption and the Gentry-Ramzan [13]constant communication-rate private information retrieval scheme. We present our implementation results and show that non-trivial sized programs can be realized, but scalability is quickly limited by computational overhead. Finally, we include a discussion on security considerations when instantiating specific modules.

Solis, John Hector

2013-03-01T23:59:59.000Z

226

Flexible indium zinc oxide/Ag/indium zinc oxide multilayer electrode grown on polyethersulfone substrate by cost-efficient roll-to-roll sputtering for flexible organic photovoltaics  

Science Conference Proceedings (OSTI)

The authors describe the preparation and characteristics of flexible indium zinc oxide (IZO)-Ag-IZO multilayer electrodes grown on flexible polyethersulfone (PES) substrates using a roll-to-roll sputtering system for use in flexible organic photovoltaics. By the continuous roll-to-roll sputtering of the bottom IZO, Ag, and top IZO layers at room temperature, they were able to fabricate a high quality IZO-Ag-IZO multilayer electrode with a sheet resistance of 6.15 {epsilon}/square, optical transmittance of 87.4%, and figure of merit value of 42.03x10{sup -3} {Omega}{sup -1} on the PES substrate. In addition, the IZO-Ag-IZO multilayer electrode exhibited superior flexibility to the roll-to-roll sputter grown single ITO electrode due to the existence of a ductile Ag layer between the IZO layers and stable amorphous structure of the IZO film. Furthermore, the flexible organic solar cells (OSCs) fabricated on the roll-to-roll sputter grown IZO-Ag-IZO electrode showed higher power efficiency (3.51%) than the OSCs fabricated on the roll-to-roll sputter grown single ITO electrode (2.67%).

Park, Yong-Seok; Kim, Han-Ki [Department of Display Materials Engineering, Kyung Hee University, 1 Seochoen-dong, Yongin-si, Gyeonggi-do 446-701 (Korea, Republic of)

2010-01-15T23:59:59.000Z

227

The preparation of carbon nanotube/MnO2 composite fiber and its application to flexible micro-supercapacitor  

Science Conference Proceedings (OSTI)

In recent years, flexible electronic devices pursued for potential applications. The design and the fabrication of a novel flexible nanoarchitecture by coating electrical conductive MWCNT fiber with ultrathin films of MnO2 to achieve high ...

Li Li, Chen Chen, Jing Xie, Zehuai Shao, Fuxin Yang

2013-01-01T23:59:59.000Z

228

Weaving time into system architecture : new perspectives on flexibility, spacecraft design lifetime, and on-orbit servicing  

E-Print Network (OSTI)

A roadmap for a comprehensive treatment of issues of flexibility in system design is developed that addresses the following questions: 1) What are the characteristic features of flexibility in system design? Can one clearly ...

Saleh, Joseph Homer, 1971-

2002-01-01T23:59:59.000Z

229

Questions and Answers - Does gravity affect atoms?  

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

and Answers Main Index Next Question (Can you crush atoms?) Can you crush atoms? Does gravity affect atoms? Gravity affects atoms the same way it affects all other matter. Every...

230

Flexible gas insulated transmission line having regions of reduced electric field  

DOE Patents (OSTI)

A gas insulated transmission line having radially flexible field control means for reducing the electric field along the periphery of the inner conductor at predetermined locations wherein the support insulators are located. The radially flexible field control means of the invention includes several structural variations of the inner conductor, wherein careful controlling of the length to depth of surface depressions produces regions of reduced electric field. Several embodiments of the invention dispose a flexible connector at the predetermined location along the inner conductor where the surface depressions that control the reduced electric field are located.

Cookson, Alan H. (Pittsburgh, PA); Fischer, William H. (Wilkins Township, Allegheny County, PA); Yoon, Kue H. (Pittsburgh, PA); Meyer, Jeffry R. (Penn Hills Township, Allegheny County, PA)

1983-01-01T23:59:59.000Z

231

Review and evaluation of design analysis methods for calculating flexibility of nozzles and branch connections  

SciTech Connect

Modern piping system design generally includes an analytical determination of displacements, rotations, moments, and reaction forces at various postions along the piping system by means of a flexibility analysis. The analytical model is normally based on a strength-of-materials description of the piping system as an interconnected set of straight and curved beams, along with ''flexibility factors'' that are used to compensate for inaccuracies in the model behavior. This report gives an in-depth evaluation of the various analytical descriptions of the flexibility factors associated with piping system branch connection and nozzles. Recommendations are given for developing needed improvements. 59 refs., 29 figs., 26 tabs.

Moore, S.E.; Rodabaugh, E.C.; Mokhtarian, K.; Gwaltney, R.C.

1987-12-01T23:59:59.000Z

232

Fixture conditions affect lamp performance  

SciTech Connect

This article discusses the major parameters that affect fluorescent lamp performance under fixture conditions. These parameters include fixture type, and HVAC integration, which directly determine the minimum lamp wall temperature (MLWT), and therefore, the resulting light output of the lamp/ballast system. Experimental data is presented showing that the lumen output of the lamp/ballast system can vary by as much as 20% and that the system efficacy can vary by 10% depending upon the type of fixture and HVAC system employed. 4 refs., 5 figs., 1 tab.

Siminovitch, M.J.; Rubinstein, F.M.; Verderber, R.R.

1986-11-01T23:59:59.000Z

233

Stochastic Modeling of Future Highway Maintenance Costs for Flexible Type Highway Pavement Construction Projects  

E-Print Network (OSTI)

The transportation infrastructure systems in the United States were built between the 50's and 80's, with 20 years design life. As most of them already exceeded their original life expectancy, state transportation agencies (STAs) are now under increased needs to rebuild deteriorated transportation networks. For major highway maintenance projects, a federal rule enforces to perform a life-cycle cost analysis (LCCA). The lack of analytical methods for LCCA creates many challenges of STAs to comply with the rule. To address these critical issues, this study aims at developing a new methodology for quantifying the future maintenance cost to assist STAs in performing a LCCA. The major objectives of this research are twofold: 1) identify the critical factors that affect pavement performances; 2) develop a stochastic model that predicts future maintenance costs of flexible-type pavement in Texas. The study data were gathered through the Pavement Management Information System (PMIS) containing more than 190,000 highway sections in Texas. These data were then grouped by critical performance-driven factor which was identified by K-means cluster analysis. Many factors were evaluated to identify the most critical factors that affect pavement maintenance need. With these data, a series of regression analyses were carried out to develop predictive models. Lastly, a validation study with PRESS statistics was conducted to evaluate reliability of the model. The research results reveal that three factors, annual average temperature, annual precipitation, and pavement age, were the most critical factors under very low traffic volume conditions. This research effort was the first of its kind undertaken in this subject. The maintenance cost lookup tables and stochastic model will assist STAs in carrying out a LCCA, with the reliable estimation of maintenance costs. This research also provides the research community with the first view and systematic estimation method that STAs can use to determine long-term maintenance costs in estimating life-cycle costs. It will reduce the agency's expenses in the time and effort required for conducting a LCCA. Estimating long-term maintenance cost is a core component of the LCCA. Therefore, methods developed from this project have the great potential to improve the accuracy of LCCA.

Kim, Yoo Hyun

2012-05-01T23:59:59.000Z

234

Flexible, transparent, and conductive film based on random networks of Ag nanowires  

Science Conference Proceedings (OSTI)

Flexible, transparent, and conductive films based on randomnetworks ofAg nanowireswere prepared by vacuum-filtratingmethod. The size of Ag nanowires prepared by hydrothermal method is uniform, with a relatively smaller diameter and a longer length, thereby ...

Shunhua Wang, Xu Zhang, Weiwei Zhao

2013-01-01T23:59:59.000Z

235

Stable Encoding of Task Structure Coexists with Flexible Coding of Task Sensorimotor Striatum  

E-Print Network (OSTI)

The sensorimotor striatum, as part of the brain's habit circuitry, has been suggested to store fixed action values as a result of stimulus-response learning and has been contrasted with a more flexible system that conditionally ...

Kubota, Yasuo

236

Flexible design : an innovative approach for planning water infrastructure systems under uncertainty  

E-Print Network (OSTI)

This thesis develops a framework for a flexible design approach to support decision-making in water supply infrastructure planning. It contrasts with a conventional, deterministic planning approach that uses past data or ...

Wong, Melanie Kathleen

2013-01-01T23:59:59.000Z

237

Incorporating operational flexibility into electric generation planning : impacts and methods for system design and policy analysis  

E-Print Network (OSTI)

This dissertation demonstrates how flexibility in hourly electricity operations can impact long-term planning and analysis for future power systems, particularly those with substantial variable renewables (e.g., wind) or ...

Palmintier, Bryan S. (Bryan Stephen)

2013-01-01T23:59:59.000Z

238

Predictions of flexible C-terminal tethers of bacterial proteins with the FLEXTAIL bioinformatics pipeline  

Science Conference Proceedings (OSTI)

Proteins use conserved binding motifs associated with relatively unconserved flexible amino acid sequences as mobile tethers for interacting molecules, as exemplified by C-terminal sequences of bacterial chemotaxis receptors. The FLEXTAIL bioinformatics ...

Yi Lu; Jeffrey L. Ram

2011-03-01T23:59:59.000Z

239

Reverse engineering nature : design principles for flexible protection inspired by ancient fish armor of Polypteridae  

E-Print Network (OSTI)

This thesis is about designing structures that combine the dual functions of mechanical protection and flexibility of motion. The structures are inspired by principles observed in the ganoid squamation (scale assembly) of ...

Reichert, Steffen H. (Steffen Heinz)

2010-01-01T23:59:59.000Z

240

Wake-body Resonance of Long Flexible Structures is Dominated by Counterclockwise Orbits  

E-Print Network (OSTI)

We identify a dominant mechanism in the interaction between a slender flexible structure undergoing free vibrations in sheared cross-flow and the vortices forming in its wake: energy is transferred from the fluid to the ...

Modarres-Sadeghi, Yahya

Note: This page contains sample records for the topic "flexibility primarily affects" 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

Mining of flexible manufacturing system using work event logs and petri nets  

Science Conference Proceedings (OSTI)

One of buzzwords for modern manufacturing industry are flexible manufacturing systems (FMS), in which several machines are interlinked by an automated information and material flow system. Description and control upon these systems are of prominent significance. ...

Hesuan Hu; Zhiwu Li; Anrong Wang

2006-08-01T23:59:59.000Z

242

Implementation of RFID in a low volume high flexibility assembly plant : item-level tagging  

E-Print Network (OSTI)

The implementation of an RFID checkpoint system in a low volume high flexibility assembly plant, aimed at tracking the flow of parts within the facility, was studied. A pilot revealed the suitability of the technology to ...

Koniski, Cyril (Cyril A.)

2010-01-01T23:59:59.000Z

243

Synthesis of flexible aerogel composites reinforced with electrospun nanofibers and microparticles for thermal insulation  

Science Conference Proceedings (OSTI)

Flexible silica aerogel composites in intact monolith of 12 cm were successfully fabricated by reinforcing SiO2 aerogel with electrospun polyvinylidene fluoride (PVDF) webs via electrospinning and sol-gel processing. Three electrospun PVDF ...

Huijun Wu, Yantao Chen, Qiliang Chen, Yunfei Ding, Xiaoqing Zhou, Haitao Gao

2013-01-01T23:59:59.000Z

244

Thermal hydraulic design and analysis of a large lead-cooled reactor with flexible conversion ratio  

E-Print Network (OSTI)

This thesis contributes to the Flexible Conversion Ratio Fast Reactor Systems Evaluation Project, a part of the Nuclear Cycle Technology and Policy Program funded by the Department of Energy through the Nuclear Energy ...

Nikiforova, Anna S., S.M. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

245

Tehcnology Choices for New Entrants in Liberalised Markets: The Value of Operating Flexibility and Contractual Arrangements  

E-Print Network (OSTI)

of decommissioning and nuclear waste treatment. When operating flexibility is not taken into account, the three plants are assumed to operate base-load with an average annual capacity utilization factor of 85% (the capacity factor is endogenously determined...

Roques, Fabien A

246

Design of passive decay heat removal system for the lead cooled flexible conversion ratio fast reactor  

E-Print Network (OSTI)

The lead-cooled flexible conversion ratio fast reactor shows many benefits over other fast-reactor designs; however, the higher power rating and denser primary coolant present difficulties for the design of a passive decay ...

Whitman, Joshua (Joshua J.)

2007-01-01T23:59:59.000Z

247

Flexibility in building design : a real options approach and valuation methodology to address risk  

E-Print Network (OSTI)

This research develops an approach to designing and valuing flexible systems subject to identified future uncertainties. The approach addresses two shortcomings of current design and decision-making practices that are ...

Greden, Lara V. (Lara Virginia), 1977-

2005-01-01T23:59:59.000Z

248

A multi-objective genetic algorithm for fuzzy flexible job-shop scheduling problem  

Science Conference Proceedings (OSTI)

In many real-world applications, processing times may vary dynamically due to human factors or operating faults and there are some other uncertain factors in the scheduling problems. Flexible job-shop scheduling problem (FJSP) is an extended traditional ...

Xiaojuan Wang; Liang Gao; Chaoyong Zhang; Xinyu Li

2012-12-01T23:59:59.000Z

249

A flexible underwater pressure sensor array for artificial lateral line applications  

E-Print Network (OSTI)

This thesis develops a flexible elastomer-based underwater pressure sensor array. When mounted onto the hull of an aquatic vehicle, the array enables obstacle detection, identification and tracking, and can help the vehicle ...

Yaul, Frank M

2011-01-01T23:59:59.000Z

250

Proceedings: EPRI Workshop on Improved Operational Flexibility: Making the Most of Generating Assets  

SciTech Connect

EPRI conducted the Workshop on Improved Operational Flexibility in October 2003. This report presents the Proceedings from that workshop. Within the Proceedings, each session is captured with the presenters' presentation slides.

None

2004-07-01T23:59:59.000Z

251

Tunable Infrared Emission From Printed Colloidal Quantum Dot/Polymer Composite Films on Flexible Substrates  

E-Print Network (OSTI)

A simple and robust device structure for a flexible, multicolor infrared (IR) display is described. The display operates by optical downconversion of AC-driven blue phosphor electroluminescence using different-sized, ...

Panzer, Matthew J.

252

Interim Action Determination Flexible Manufacturing Capability for the Mixed Fuel Fabrication Facility (MFFF)  

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

Flexible Manufacturing Capability for the Mixed Fuel Fabrication Facility (MFFF) Flexible Manufacturing Capability for the Mixed Fuel Fabrication Facility (MFFF) The Department of Energy (DOE) is preparing the Surplus Plutonium Disposition Supplemental Environmental Impact Statement (SPD SEIS), DOE/EIS-0283-S2. DOE is evaluating, among many other things, the environmental impacts of any design and operations changes to the MFFF, which is under construction at the Savannah River Site near Aiken, South Carolina. DOE

253

Interim Action Determination Flexible Manufacturing Capability for the Mixed Fuel Fabrication Facility (MFFF)  

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

Flexible Manufacturing Capability for the Mixed Fuel Fabrication Facility (MFFF) Flexible Manufacturing Capability for the Mixed Fuel Fabrication Facility (MFFF) The Department of Energy (DOE) is preparing the Surplus Plutonium Disposition Supplemental Environmental Impact Statement (SPD SEIS), DOE/EIS-0283-S2. DOE is evaluating, among many other things, the environmental impacts of any design and operations changes to the MFFF, which is under construction at the Savannah River Site near Aiken, South Carolina. DOE

254

Flexible Operation of Current and Next-Generation Coal Plants, With and Without Carbon Capture  

Science Conference Proceedings (OSTI)

Based on input from research sponsored by the Electric Power Research Institute (EPRI), and other respected industry sources, this report aims to initially highlight the implications for existing pulverized coal (PC) plants when they are required to operate frequently under changing load conditions. The report presents design improvements to enable more flexible operation of the current and next generation coal fleet. It also discusses the implications on operation flexibility of both new and ...

2013-12-31T23:59:59.000Z

255

Effect of Flexible Operation on Boiler Components: Theory and Practice, Volume 1: Fundamentals  

Science Conference Proceedings (OSTI)

Flexible operation plays an increasing role in power plant operation. Many conventional coal- and oil-fired power plants were originally designed for baseload operation; that is, either shut down or operating at full load. Flexible operation causes damage throughout a fossil-fired unit; however, this project focused on boiler components, including the boiler enclosure and high-energy piping leading up to the turbine stop valves.The objectives of this report are the ...

2013-12-19T23:59:59.000Z

256

Examination system utilizing ionizing radiation and a flexible, miniature radiation detector probe  

DOE Patents (OSTI)

An optimized examination system and method based on the Reverse Geometry X-Ray.RTM. (RGX.RTM.) radiography technique are presented. The examination system comprises a radiation source, at least one flexible, miniature radiation detector probe positioned in appropriate proximity to the object to be examined and to the radiation source with the object located between the source and the probe, a photodetector device attachable to an end of the miniature radiation probe, and a control unit integrated with a display device connected to the photodetector device. The miniature radiation detector probe comprises a scintillation element, a flexible light guide having a first end optically coupled to the scintillation element and having a second end attachable to the photodetector device, and an opaque, environmentally-resistant sheath surrounding the flexible light guide. The probe may be portable and insertable, or may be fixed in place within the object to be examined. An enclosed, flexible, liquid light guide is also presented, which comprises a thin-walled flexible tube, a liquid, preferably mineral oil, contained within the tube, a scintillation element located at a first end of the tube, closures located at both ends of the tube, and an opaque, environmentally-resistant sheath surrounding the flexible tube. The examination system and method have applications in non-destructive material testing for voids, cracks, and corrosion, and may be used in areas containing hazardous materials. In addition, the system and method have applications for medical and dental imaging.

Majewski, Stanislaw (Grafton, VA); Kross, Brian J. (Yorktown, VA); Zorn, Carl J. (Yorktown, VA); Majewski, Lukasz A. (Grafton, VA)

1996-01-01T23:59:59.000Z

257

Examination system utilizing ionizing radiation and a flexible, miniature radiation detector probe  

DOE Patents (OSTI)

An optimized examination system and method based on the Reverse Geometry X-Ray{trademark} (RGX{trademark}) radiography technique are presented. The examination system comprises a radiation source, at least one flexible, miniature radiation detector probe positioned in appropriate proximity to the object to be examined and to the radiation source with the object located between the source and the probe, a photodetector device attachable to an end of the miniature radiation probe, and a control unit integrated with a display device connected to the photodetector device. The miniature radiation detector probe comprises a scintillation element, a flexible light guide having a first end optically coupled to the scintillation element and having a second end attachable to the photodetector device, and an opaque, environmentally-resistant sheath surrounding the flexible light guide. The probe may be portable and insertable, or may be fixed in place within the object to be examined. An enclosed, flexible, liquid light guide is also presented, which comprises a thin-walled flexible tube, a liquid, preferably mineral oil, contained within the tube, a scintillation element located at a first end of the tube, closures located at both ends of the tube, and an opaque, environmentally-resistant sheath surrounding the flexible tube. The examination system and method have applications in non-destructive material testing for voids, cracks, and corrosion, and may be used in areas containing hazardous materials. In addition, the system and method have applications for medical and dental imaging. 5 figs.

Majewski, S.; Kross, B.J.; Zorn, C.J.; Majewski, L.A.

1996-10-22T23:59:59.000Z

258

Notices Affected Public: Individuals and  

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

23 Federal Register 23 Federal Register / Vol. 76, No. 23 / Thursday, February 3, 2011 / Notices Affected Public: Individuals and households; not-for-profit institutions; State, Local, or Tribal Government, State Educational Agencies or Local Educational Agencies. Total Estimated Number of Annual Responses: 22,760. Total Estimated Number of Annual Burden Hours: 8,725. Abstract: The study is being conducted as part of the National Assessment of Title I, mandated by Title I, Part E, Section 1501 of the Elementary and Secondary Education Act. The study is designed to identify school programs and instructional practices associated with improved language development, background knowledge, and comprehension outcomes for children in prekindergarten through third grade. Analyses will estimate the

259

Notices LIST OF AFFECTED PROGRAMS  

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

90 Federal Register 90 Federal Register / Vol. 76, No. 175 / Friday, September 9, 2011 / Notices LIST OF AFFECTED PROGRAMS CFDA No. and name Publication date and FEDERAL REG- ISTER citation Original deadline for transmittal of applications Revised deadline for transmittal of applications Original deadline for inter-govern- mental review Extended dead- line for inter-gov- ernmental review 84.215N: Promise Neighborhoods Program- Implementation. 7/6/2011 76 FR 39615. 9/06/2011 9/13/2011 11/03/2011 11/10/2011 84.215P: Promise Neighborhoods Program- Planning. 7/06/2011 76 FR 39630. 9/06/2011 9/13/2011 11/03/2011 11/10/2011 Electronic Access to This Document The official version of this document is the document published in the Federal Register. Free Internet access to the official edition of the Federal

260

How Sample Completeness Affects Gamma-Ray Burst Classification  

E-Print Network (OSTI)

Unsupervised pattern recognition algorithms support the existence of three gamma-ray burst classes; Class I (long, large fluence bursts of intermediate spectral hardness), Class II (short, small fluence, hard bursts), and Class III (soft bursts of intermediate durations and fluences). The algorithms surprisingly assign larger membership to Class III than to either of the other two classes. A known systematic bias has been previously used to explain the existence of Class III in terms of Class I; this bias allows the fluences and durations of some bursts to be underestimated (Hakkila et al., ApJ 538, 165, 2000). We show that this bias primarily affects only the longest bursts and cannot explain the bulk of the Class III properties. We resolve the question of Class III existence by demonstrating how samples obtained using standard trigger mechanisms fail to preserve the duration characteristics of small peak flux bursts. Sample incompleteness is thus primarily responsible for the existence of Class III. In order to avoid this incompleteness, we show how a new dual timescale peak flux can be defined in terms of peak flux and fluence. The dual timescale peak flux preserves the duration distribution of faint bursts and correlates better with spectral hardness 2 (and presumably redshift) than either peak flux or fluence. The techniques presented here are generic and have applicability to the studies of other transient events. The results also indicate that pattern recognition algorithms are sensitive to sample completeness; this can influence the study of large astronomical databases such as those found in a Virtual Observatory.

Jon Hakkila; Timothy W. Giblin; Richard J. Roiger; David J. Haglin; William S. Paciesas; Charles A. Meegan

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flexibility primarily affects" 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

Flexibility and economics of combustion turbine-based cogeneration systems  

SciTech Connect

The major objective of this paper is to discuss various options that affect the efficiency of combustion turbine cogeneration plants and the commensurate net worth impact to the firm. Topics considered include technical evaluation parameters, an efficiency definition, a cogeneration heat rate definition, the qualitative value of efficiency and the cogeneration heat rate, economic evaluation techniques, industrial processes suitable for cogeneration, equipment requirements, the combustion turbine package, the heat recovery steam generator package, balance of plant equipment, engineering and construction, the total cost of incorporating the cogeneration plant, cogeneration with the basic combustion turbine/heat recovery steam generator (CT/HRSG) cycle, cogeneration-steam production increase by ductburning, dual-pressure HRSG, the backpressure steam turbine, supercharging, separating electrical power generation from steam demand, and incorporating a backup source of steam generation.

Wohlschlegel, M.V.; Marcellino, A.; Myers, G.

1983-01-01T23:59:59.000Z

262

Journey to Flexible, Reliable, Laboratory Platform for Simultaneous Control of Multiple Reactive Power Producing Devices  

SciTech Connect

Herein is discussed the instrumentation and control requirements for achieving the goal of operating multiple Distributed Energy (DE) devices in parallel to regulate local voltage. The process for establishing the flexible laboratory control and data acquisition system that allows for the integration of multiple Distributed Energy (DE) devices in XXXX Laboratory's Distributed Energy - Communications and Controls Laboratory (DECC) is discussed. The DE devices control local distribution system voltage through dynamic reactive power production. Although original efforts were made to control the reactive power (RP) output using information from commercially available meters specifically designed for monitoring and analyzing electric power values, these "intelligent" meters did not provide the flexibility needed. A very flexible and capable real-time monitoring and control system was selected after the evaluation of various methods of data acquisition (DAQ) and control. The purpose of this paper is to describe the DAQ and controls system development. The chosen controller is a commercially available real-time controller from dSPACE. This controller has many excellent features including a very easy programming platform through Simulink and Matlab's Real Time Workshop. The dSPACE system proved to provide both the flexibility and expandability needed to integrate and control the RP producing devices under consideration. The desire was to develop controls with this flexible laboratory instrumentation and controls setup that could be eventually be included in an embedded controller on a DE device. Some experimental results are included that clearly show that some functional control strategies are currently being tested.

Foster, Jason [ORNL; Rizy, D Tom [ORNL; Kueck, John D [ORNL

2007-01-01T23:59:59.000Z

263

A Flexible Software Architecture for Tokamak Discharge Control Systems  

E-Print Network (OSTI)

The software structure of the plasma control system in use on the DIII--D tokamak experiment is described. This system implements control functions through software executing in real time on one or more digital computers. The software is organized into a hierarchy that allows new control functions needed to support the DIII--D experimental program to be added easily without affecting previously implemented functions. This also allows the software to be portable in order to create control systems for other applications. The tokamak operator uses an X-windows based interface to specify the time evolution of a tokamak discharge. The interface provides a high level view for the operator that reduces the need for detailed knowledge of the control system operation. There is provision for an asynchronous change to an alternate discharge time evolution in response to an event that is detected in real time. Quality control is enhanced through off-line testing that can make use of software-based...

Ferron Penaflor Walker

1995-01-01T23:59:59.000Z

264

Combustion Instability and Blowout Characteristics of Fuel Flexible Gas Turbine Combustors  

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

Combustion Instability and Blowout Combustion Instability and Blowout Characteristics of Fuel Flexible Gas Turbine Characteristics of Fuel Flexible Gas Turbine Combustors Combustors Georgia Institute of Technology Georgia Institute of Technology Tim Lieuwen, Ben Zinn Bobby Noble, Qingguo Zhang DOE COOPERATIVE AGREEMENT DE-FC26-02NT41431 Tom J. George, Program Manager, DOE/NETL Richard Wenglarz, Manager of Research, SCIES SCIES Project 03-01-SR111 Project Awarded (07/01/03, 36 Month Duration) Total Contract Value $376,722 . CLEMSON presentation, T.L., B.Z., B.N., Q.Z. Gas Turbine Need Gas Turbine Need * Need: Gas turbines with sufficient flexibility to cleanly and efficiently combust a wide range of fuels, particularly coal-derived gases - Problem: Inherent variability in composition and heating

265

ULTRASONIC IMAGING USING A FLEXIBLE ARRAY: IMPROVEMENTS TO THE MAXIMUM CONTRAST AUTOFOCUS ALGORITHM  

SciTech Connect

In previous work, we have presented the maximum contrast autofocus algorithm for estimating unknown imaging parameters, e.g., for imaging through complicated surfaces using a flexible ultrasonic array. This paper details recent improvements to the algorithm. The algorithm operates by maximizing the image contrast metric with respect to the imaging parameters. For a flexible array, the relative positions of the array elements are parameterized using a cubic spline function and the spline control points are estimated by iterative maximisation of the image contrast via simulated annealing. The resultant spline gives an estimate of the array geometry and the profile of the surface that it has conformed to, allowing the generation of a well-focused image. A pre-processing step is introduced to obtain an initial estimate of the array geometry, reducing the time taken for the algorithm to convergence. Experimental results are demonstrated using a flexible array prototype.

Hunter, A. J.; Drinkwater, B. W.; Wilcox, P. D. [Department of Mechanical Engineering, University of Bristol (United Kingdom)

2009-03-03T23:59:59.000Z

266

Thin-Film Solar Cell Fabricated on a Flexible Metallic Substrate  

SciTech Connect

A thin-film solar cell (10) is provided. The thin-film solar cell (10) comprises a flexible metallic substrate (12) having a first surface and a second surface. A back metal contact layer (16) is deposited on the first surface of the flexible metallic substrate (12). A semiconductor absorber layer (14) is deposited on the back metal contact. A photoactive film deposited on the semiconductor absorber layer (14) forms a heterojunction structure and a grid contact (24) deposited on the heterjunction structure. The flexible metal substrate (12) can be constructed of either aluminium or stainless steel. Furthermore, a method of constructing a solar cell is provided. The method comprises providing an aluminum substrate (12), depositing a semiconductor absorber layer (14) on the aluminum substrate (12), and insulating the aluminum substrate (12) from the semiconductor absorber layer (14) to inhibit reaction between the aluminum substrate (12) and the semiconductor absorber layer (14).

Tuttle, J. R.; Noufi, R.; Hasoon, F. S.

2006-05-30T23:59:59.000Z

267

Method of manufacturing flexible metallic photonic band gap structures, and structures resulting therefrom  

DOE Patents (OSTI)

A method of manufacturing a flexible metallic photonic band gap structure operable in the infrared region, comprises the steps of spinning on a first layer of dielectric on a GaAs substrate, imidizing this first layer of dielectric, forming a first metal pattern on this first layer of dielectric, spinning on and imidizing a second layer of dielectric, and then removing the GaAs substrate. This method results in a flexible metallic photonic band gap structure operable with various filter characteristics in the infrared region. This method may be used to construct multi-layer flexible metallic photonic band gap structures. Metal grid defects and dielectric separation layer thicknesses are adjusted to control filter parameters.

Gupta, Sandhya (Bloomington, MN); Tuttle, Gary L. (Ames, IA); Sigalas, Mihail (Ames, IA); McCalmont, Jonathan S. (Ames, IA); Ho, Kai-Ming (Ames, IA)

2001-08-14T23:59:59.000Z

268

Flexible Zn2SnO4/MnO2 Core/Shell Nanocable-Carbon Microfiber ...  

Science Conference Proceedings (OSTI)

Presentation Title, Flexible Zn2SnO4/MnO2 Core/Shell Nanocable-Carbon Microfiber Hybrid Composites for High-Performance Supercapacitor Electrodes.

269

Measuring impact of CONWIP control on production rate and inventory distribution for a flexible production system through simulation  

E-Print Network (OSTI)

This research investigates the production output and inventory distribution of a manufacturing system that produces multiple part types on flexible machines while incorporating CONWIP inventory controls. The production ...

Lampe, Erik Joseph

2007-01-01T23:59:59.000Z

270

Electronic Durability of Flexible Transparent Films from Type-Specific Single-Wall Carbon Nanotubes  

Science Conference Proceedings (OSTI)

The coupling between mechanical flexibility and electronic performance is evaluated for thin films of metallic and semiconducting single-wall carbon nanotubes (SWCNTs) deposited on compliant supports. Percolated networks of type-purified SWCNTs are assembled as thin conducting coatings on elastic polymer substrates, and the sheet resistance is measured as a function of compression and cyclic strain through impedance spectroscopy. The wrinkling topography, microstructure and transparency of the films are independently characterized using optical microscopy, electron microscopy, and optical absorption spectroscopy. Thin films made from metallic SWCNTs show better durability as flexible transparent conductive coatings, which we attribute to a combination of superior mechanical performance and higher interfacial conductivity.

Harris, J; Iyer, S; Bernhardt, A; Huh, JY; Hudson, S; Fagan, J; Hobbie, E.

2011-12-11T23:59:59.000Z

271

Flexible Micro Thermoelectric Generator based on Electroplated Bi2Te3  

E-Print Network (OSTI)

We present and discuss the fabrication process and the performance of a flexible micro thermoelectric generator with electroplated Bi2Te3 thermocouples in a SU-8 mold. Demonstrator devices generate 278uWcm-2 at dTmeas=40K across the experimental set up. Based on model calculations, a temperature difference of dTG=21.4K across the generator is assumed. Due to the flexible design and the chosen generator materials, the performance stays high even for curved contact surfaces. The measurement results correlate well with the model based design optimization predictions.

Schwyter, E; Durrer, L; Hierold, Ch

2008-01-01T23:59:59.000Z

272

The influence of affect on attitude  

E-Print Network (OSTI)

11 The Influence of Affect on Attitude Gerald L. Clore Simone Schnall University of Virginia AFFECTIVE INFLUENCE ON ATTITUDE Priests of the medieval Catholic Church understood something about the relationship between affect and attitude... another, earlier review (Boakes, 1989, p. 389), which stated that "[Brewer's] conclusion still stands that there is no convincing evidence for conditioning in human subjects without awareness of the contingencies." The gist of the argument made...

Clore, Gerald L.; Schnall, Simone

2005-01-01T23:59:59.000Z

273

DOE Beryllium Affected Workers Web Resources  

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

Training What's New? Workshops Health and Safety HSS Logo DOE Beryllium Affected Workers Web Resources 1. What Is Beryllium? Beryllium is a hard, lightweight metal that is very...

274

Assessing the operational life of flexible printed boards intended for continuous flexing applications : a case study.  

Science Conference Proceedings (OSTI)

Through the vehicle of a case study, this paper describes in detail how the guidance found in the suite of IPC (Association Connecting Electronics Industries) publications can be applied to develop a high level of design assurance that flexible printed boards intended for continuous flexing applications will satisfy specified lifetime requirements.

Beck, David Franklin

2011-01-01T23:59:59.000Z

275

Guide for Economic Evaluation of Flexible AC Transmission Systems (FACTS) in Open Access Environments  

Science Conference Proceedings (OSTI)

The onset of deregulation in the electric power industry may have a chilling effect on a utility's willingness to upgrade its power delivery system because of perceived economic or environmental risks. This report provides a guide for utilities when undertaking evaluation and planning for the use of Flexible AC Transmission System (FACTS) technology as cost-effective devices for power delivery system enhancements.

1997-08-27T23:59:59.000Z

276

Demonstration Abstract: WARP A Flexible Platform for Clean-Slate Wireless Medium Access Protocol Design  

E-Print Network (OSTI)

Demonstration Abstract: WARP ­ A Flexible Platform for Clean-Slate Wireless Medium Access Protocol University Wireless Open-Access Research Platform (WARP) provides a high performance research tool for clean-slate provides a general environment for a clean-slate MAC/PHY de- velopment unlike other platforms which rely

Knightly, Edward W.

277

Agent Tcl: A flexible and secure mobileagent Submitted to the Faculty  

E-Print Network (OSTI)

Agent Tcl: A flexible and secure mobile­agent system A Thesis Submitted to the Faculty in partial malicious machines), and insulating the agent against network and machine failures. Agent Tcl is a mobile­agent system under development at Dartmouth College that has evolved from a Tcl­only system into a multiple

278

Research for the Crane Boom Length Coefficient Considering the Tower Head Flexibility in Rotary Plane  

Science Conference Proceedings (OSTI)

When the crane boom length in rotary plane is determined, the traditional methods only consider support condition, non-uniform, boom end lateral displacement constraint effect of amplitude dragline and hoist rope tensile forces. Ignoring tower head elastic ... Keywords: Equivalent elastic support method, Rotary plane, Tower head flexibility, Non-conservative loading, Length coefficient

Zhang Guangyun; Lan Peng; Lu Nianli

2011-01-01T23:59:59.000Z

279

A Progress Report on the Characterization and Modeling of a Very Flexible Wind Turbine Design  

DOE Green Energy (OSTI)

The combination of increasing turbine rotor diameters and the desire to achieve long lifetimes has placed increased emphasis on understanding the response of flexible turbine structures in a turbulent inflow environment. One approach to increase fatigue lifetimes has been to design structures that can either shed or adequately absorb turbulent loads through the use of flexible rotors and support towers, and hubs and nacelles that exhibit multiple degrees of angular freedom. The inevitable result in such designs is a substantial increase in dynamic complexity. In order to develop a sufficient knowledge of such concepts, extensive measurements coupled with detailed analytical simulations of a flexible turbine design are required. The Wind Eagle 300 turbine, with its lightweight flexible rotor and hub, meets these criteria and is currently being investigated. In this paper we discuss a few early results from our recently completed field measurement effort. We found that the turbine rotor response was dominated by a once-per-revolution oscillation that was responsible for large cyclic variations in the output power. The available evidence points to a rotor imbalance related to structural differences in one of the blades and misalignment of the pitch angles. We also compared the variation in mean out-of-plane bending loads with wind speed with a conventional rigid hub design.

Kelley, N. D.; Wright, A. D.; Osgood, R. M.

1998-11-02T23:59:59.000Z

280

FLEXIBLE MEDICAL CARE AND DEPENDENT CARE REIMBURSMENT ACCOUNTS Frequently Asked Questions and Answers  

E-Print Network (OSTI)

FLEXIBLE MEDICAL CARE AND DEPENDENT CARE REIMBURSMENT ACCOUNTS Frequently Asked Questions a portion of your salary for non-reimbursed medical expenses or dependent care expenses on a pre-tax basis is placed into a medical care and/or dependent care reimbursement account and reimbursed to you as you incur

Snider, Barry B.

Note: This page contains sample records for the topic "flexibility primarily affects" 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

Design of a 2400MW liquid-salt cooled flexible conversion ratio reactor  

E-Print Network (OSTI)

A 2400MWth liquid-salt cooled flexible conversion ratio reactor was designed, utilizing the ternary chloride salt NaCl-KCl-MgCI2 (30%-20%-50%) as coolant. The reference design uses a wire-wrapped, hex lattice core, and is ...

Petroski, Robert C

2008-01-01T23:59:59.000Z

282

Hard, Flexible and Dynamic Constraint Satisfaction Ian Miguel and Qiang Shen  

E-Print Network (OSTI)

Hard, Flexible and Dynamic Constraint Satisfaction Ian Miguel and Qiang Shen School of Arti#12;cial satisfaction problem (CSP) with hard, imperative constraints is insu?cient to model many real problems. Two satisfaction have been applied to real-world problems, it has become increasingly clear that classical hard

Miguel, Ian

283

On the Value of Input Efficiency, Capacity Efficiency, and the Flexibility to Rebalance Them  

Science Conference Proceedings (OSTI)

A common characteristic of basic material manufacturers which account for 85% of all industrial energy use and of cleantech manufacturers is that they are price takers in their input and output markets. Variability in those prices has implications for ... Keywords: energy efficiency, environment, flexibility, process improvement

Erica L. Plambeck, Terry A. Taylor

2013-10-01T23:59:59.000Z

284

Constructions of dynamic geometry: A study of the interpretative flexibility of educational software in classroom practice  

Science Conference Proceedings (OSTI)

The idea of 'interpretative flexibility' underpins new approaches to studying technological artefacts and curricular resources in use. This paper opens by reviewing - in this light - the evolving design of dynamic geometry, its pioneering use within ... Keywords: Applications in subject areas, Curriculum materials, Dynamic geometry, Educational software, Pedagogical issues, School mathematics, Secondary education, Teacher thinking, Teaching practices, Technology integration

Kenneth Ruthven; Sara Hennessy; Rosemary Deaney

2008-08-01T23:59:59.000Z

285

Design of discrete control system of flexible spacecraft maintaining robust stability of elastic oscillations  

Science Conference Proceedings (OSTI)

For the flexible spacecraft with a nonlinear orientation control system using flywheel engines, an approach to making its elastic oscillations robust stable was considered. It relies on a purposeful variation of the boundaries of the stability domains ... Keywords: 07.05.Dz

I. N. Krutova; V. M. Sukhanov

2009-07-01T23:59:59.000Z

286

Highly efficient blue organic light emitting devices with indium-free transparent anode on flexible substrates  

Science Conference Proceedings (OSTI)

Indium-free transparent conducting oxides may provide a lower cost solution for the transparent anode in flexible displays and energy efficient solid state lighting. We report herein a near room temperature sputtering process for generating an indium-free transparent conductive oxide (TCO) coating on a flexible substrate. Specifically, we deposited gallium-doped zinc oxide (GZO) uniformly over a 12 diameter area at room temperature on polyethylene terephthalate (PET). During deposition, the system heats to about 60oC due to the energetic sputtering conditions, without any noticeable damage to the PET substrate. The GZO films exhibit excellent physical, optical and electrical properties: roughness ~7 nm, transmittance >85% and resistivity ~ 10-3 ohm cm. Phosphorescent blue organic light-emitting devices (OLEDs) were fabricated on these substrates with comparable performance (16% external quantum efficiency and 33 lm/W power efficiency at 1mA/cm2) to that of devices fabricated on GZO (or ITO) deposited on glass substrates, suggesting flexible GZO/PET substrates may be used instead of high-cost and rigid ITO and glass for flexible displays and solid state lighting.

Wang, Liang; Swensen, James S.; Polikarpov, Evgueni; Matson, Dean W.; Bonham, Charles C.; Bennett, Wendy D.; Gaspar, Daniel J.; Padmaperuma, Asanga B.

2010-09-30T23:59:59.000Z

287

ZnO and MgZnO nanocrystalline flexible films: optical and material properties  

Science Conference Proceedings (OSTI)

An emerging material for flexible UV applications is MgxZn1-xO which is capable of tunable bandgap and luminescence in the UV range of ?3.4 eV-7.4 eV depending on the composition x. Studies on the optical ...

Jesse Huso; John L. Morrison; Hui Che; Jency P. Sundararajan; Wei Jiang Yeh; David McIlroy; Thomas J. Williams; Leah Bergman

2011-01-01T23:59:59.000Z

288

kMemvisor: flexible system wide memory mirroring in virtual environments  

Science Conference Proceedings (OSTI)

Today's commercial cloud service providers require the availability with an annual uptime percentage at least 99.95\\%. While memory errors become norms instead of exceptions with the increasing memory's density and capacity in cloud applications. Thus, ... Keywords: flexible memory mirroring, system-wide high availability

Bin Wang; Zhengwei Qi; Haibing Guan; Haoliang Dong; Wei Sun; Yaozu Dong

2013-06-01T23:59:59.000Z

289

Flexible Fuel Vehicles: Powered by a Renewable U.S. Fuel  

Science Conference Proceedings (OSTI)

Clean Cities fact sheet describing aspects of flexible fuel vehicles such as use of E85, special features, benefits of use, costs, and fueling locations. It includes discussion on performance and how to identify these vehicles as well as listing additional resources.

Not Available

2007-03-01T23:59:59.000Z

290

Seasonal Energy Storage Operations with Limited Flexibility: The Price-Adjusted Rolling Intrinsic Policy  

Science Conference Proceedings (OSTI)

The value of seasonal energy storage depends on how the firm operates storage to capture seasonal price spreads. Energy storage operations typically face limited operational flexibility characterized by the speed of storing and releasing energy, which ... Keywords: OM practice, energy storage operations, natural gas industry, real options

Owen Q. Wu; Derek D. Wang; Zhenwei Qin

2012-07-01T23:59:59.000Z

291

A flexible and dynamic algorithm for assessment and optimization of utility sectors  

Science Conference Proceedings (OSTI)

This paper presents a flexible and dynamic algorithm for total assessment, ranking, and optimization of utility sectors. Data envelopment analysis (DEA), corrected ordinary least square (COLS), and stochastic frontier analysis (SFA) are employed for ... Keywords: Assessment, Corrected ordinary least squares, Data envelopment analysis, Optimization, Stochastic frontier analysis, Utility sector

A. Azadeh; H. Eivazy; M. Moghaddam

2010-11-01T23:59:59.000Z

292

Flexible, extensible, open-source and affordable FPGA-based traffic generator  

Science Conference Proceedings (OSTI)

As high-speed links become ubiquitous in current networks, testing new algorithms at high speed is essential for researchers. This task often makes it necessary to generate traffic with some specified features : distribution of packet sizes, payload ... Keywords: FPGA, NetFPGA 10G, combo, flexible, open-source, traffic generator

Tristan Grolat; Matthieu Arzel; Sandrine Vaton; Alban Bourge; Yannick Le Balch; Hicham Bougdal; Manuel Aranaz Padron

2013-06-01T23:59:59.000Z

293

Establishing Crop Acreage Flexibility Restraints for Subregions of the Texas High Plains  

E-Print Network (OSTI)

Cropping pattern shifts in many aggregate linear programming (LP) models need to be constrained due to institutional, marketing machinery, and price uncertainty factors. The purpose of this study was to estimate constraints which are referred to as flexibility restraints for major crop acreages in subregions of the Texas High Plains for use in a LP model that was developed to derive water and other input demand. Alternative estimating models for establishing acreage flexibility restraints were developed using methodology and model formulation presented in the literature. The results of these models in estimating flexibility restraints were evaluated using statistical measures and subjective analysis. Models which were analyzed ranged from a simple linear regression model in which the current year's acreage is expressed as a function of last year's acreage to a multiple regression model in which economic and climatological variables were considered. The multiple regression model as formulated and estimated did not provide satisfactory results. However, as in many of the earlier studies the simpler models did provide acceptable performance. From among the simpler models one was selected based on statistical measures and a prioria expectations. The model was used to calculate crop acreage flexibility restraints for three subregions of the Texas High Plains.

Condra, G. D.; Lacewell, R. D.

1977-01-01T23:59:59.000Z

294

Conceptual study on Flexible Guidance and Docking system for ITER Remote Handling  

E-Print Network (OSTI)

1 Conceptual study on Flexible Guidance and Docking system for ITER Remote Handling Transport Cask divertors and blanket modules from the Tokamak Building to the Hot Cell Building o Addressed topics for ITER Remote Handling Transport Cask o Publications from IST team: · Isabel Ribeiro, Pedro Lima, Pedro

Ribeiro,Isabel

295

Solar: Towards a Flexible and Scalable Data-Fusion Infrastructure for Ubiquitous Computing  

E-Print Network (OSTI)

Solar: Towards a Flexible and Scalable Data-Fusion Infrastructure for Ubiquitous Computing Guanling- per we introduce our proposed infrastructure, Solar. In Solar, information sources produce events. Ap to describe the tree, based on event streams registered in a context-sensitive naming hierarchy. Solar

296

Solar: Towards a Flexible and Scalable DataFusion Infrastructure for Ubiquitous Computing  

E-Print Network (OSTI)

Solar: Towards a Flexible and Scalable Data­Fusion Infrastructure for Ubiquitous Computing Guanling­ per we introduce our proposed infrastructure, Solar. In Solar, information sources produce events. Ap to describe the tree, based on event streams registered in a context­sensitive naming hierarchy. Solar

297

Flexible Ultra Moisture Barrier Film for Thin-Film Photovoltaic Applications  

Science Conference Proceedings (OSTI)

Flexible Thin-film photovoltaic (TFPV) is a low cost alternative to incumbent c-Si PV products as it requires less volume of costly semiconductor materials and it can potentially reduce installation cost. Among the TFPV options, copper indium gallium diselenide (CIGS) has the highest efficiency and is believed to be one of the most attractive candidates to achieve PV cost reduction. However, CIGS cells are very moisture sensitive and require module water vapor transmission rate (WVTR) of less than 1x10-4 gram of water per square meter per day (g-H2O/m2/day). Successful development and commercialization of flexible transparent ultra moisture barrier film is the key to enable flexible CIGS TFPV products, and thus enable ultimate PV cost reduction. At DuPont, we have demonstrated at lab scale that we can successfully make polymer-based flexible transparent ultra moisture barrier film by depositing alumina on polymer films using atomic layer deposition (ALD) technology. The layer by layer ALD approach results in uniform and amorphous structure which effectively reduces pinhole density of the inorganic coating on the polymer, and thus allow the fabrication of flexible barrier film with WVTR of 10-5 g-H2O/m2/day. Currently ALD is a time-consuming process suitable only for high-value, relatively small substrates. To successfully commercialize the ALD-on-plastic technology for the PV industry, there is the need to scale up this technology and improve throughput. The goal of this contract work was to build a prototype demonstrating that the ALD technology could be scaled-up for commercial use. Unfortunately, the prototype failed to produce an ultra-barrier film by the close of the project.

David M. Dean

2012-10-30T23:59:59.000Z

298

Energy Savings Potential of Flexible and Adaptive HVAC Distribution Systems for Office Buildings  

Science Conference Proceedings (OSTI)

It has been understood by architects and engineers that office buildings with easily re-configurable space and flexible mechanical and electrical systems are able to provide comfort that increases worker productivity while using less energy. Raised floors are an example of how fresh air, thermal conditioning, lighting needs, and network access can be delivered in a flexible manner that is not ''embedded'' within the structure. What are not yet documented is how well these systems perform and how much energy they can save. This area is being investigated in phased projects of the 21st Century Research Program of the Air-conditioning and Refrigeration Technology Institute. For the initial project, research teams at the Center for Building Performance and Diagnostics, Pittsburgh, Pennsylvania, and Oak Ridge National Laboratory, Oak Ridge, Tennessee, documented the diversity, performance, and incidence of flexible and adaptive HVAC systems. Information was gathered worldwide from journal and conference articles, case studies, manufactured products and assemblies, and interviews with design professionals. Their report thoroughly describes the variety of system types along with the various design alternatives observed for plenums, diffusers, individual control, and system integration. Many of the systems are illustrated in the report and the authors provide quantitative and qualitative comparisons. Among conclusions regarding key design issues, and barriers to widespread adoption, the authors state that flexible and adaptive HVAC systems, such as underfloor air, perform as well if not better than ceiling-based systems. Leading engineers have become active proponents after their first experience, which is resulting in these flexible and adaptive HVAC systems approaching 10 percent of the new construction market. To encourage adoption of this technology that improves thermal comfort and indoor air quality, follow-on work is required to further document performance. Architects, professional engineers, and commercial real estate developers will benefit from the availability of information that quantifies energy savings, first cost construction differences, and additional operating costs created when office space must be reconfigured to accommodate new tenants.

Loftness, Vivian; Brahme, Rohini; Mondazzi, Michelle; Vineyard, Edward; MacDonald, Michael

2002-06-01T23:59:59.000Z

299

A Multi-Objective Production Inventory Model with Backorder for Fuzzy Random Demand Under Flexibility and Reliability  

Science Conference Proceedings (OSTI)

In this paper, an Economic Production Quantity (EPQ) model is developed with flexibility and reliability consideration of production process in an imprecise and uncertain mixed environment. The model has incorporated fuzzy random demand, an imprecise ... Keywords: Flexibility, Fuzzy random variable, Imprecise preparation time, Interval arithmetic, Reliability

Nita H. Shah; Hardik Soni

2011-12-01T23:59:59.000Z

300

Fabrication and characterization of CdTe nano pattern on flexible substrates by nano imprinting and electrodeposition  

Science Conference Proceedings (OSTI)

Nano imprinting technology and the electrodeposition method were applied to make CdTe nano patterns on flexible substrates. An ammonia based aqueous solution was prepared at pH 10.7 and indium tin oxide (ITO)/polyethylene naphthalate (PEN) film with ... Keywords: CdTe nano pattern, Electrodeposition, Flexible substrate, Nano imprinting

Seungju Chun; Kang-Soo Han; Ju-Hyeon Shin; Heon Lee; Donghwan Kim

2010-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "flexibility primarily affects" 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.


301

Methods of preparing flexible photovoltaic devices using epitaxial liftoff, and preserving the integrity of growth substrates used in epitaxial growth  

DOE Patents (OSTI)

There is disclosed methods of making photosensitive devices, such as flexible photovoltaic (PV) devices, through the use of epitaxial liftoff. Also described herein are methods of preparing flexible PV devices comprising a structure having a growth substrate, wherein the selective etching of protective layers yields a smooth growth substrate that us suitable for reuse.

Forrest, Stephen R; Zimmerman, Jeramy; Lee, Kyusang; Shiu, Kuen-Ting

2013-02-19T23:59:59.000Z

302

Technology flexibility as enabler of robust application development in community source: The case of Kuali and Sakai  

Science Conference Proceedings (OSTI)

Technology flexibility has been an important topic in software engineering since the start of computerized business applications, which require frequent changes to system specifications due to ever changing business requirements. Achieving a higher degree ... Keywords: Agile enterprise, Community source, Open source, Service oriented architecture, Technology flexibility, Workflow technology

Manlu Liu; Harry Jiannan Wang; J. Leon Zhao

2012-12-01T23:59:59.000Z

303

Affective content analysis of music video clips  

Science Conference Proceedings (OSTI)

Nowadays, the amount of multimedia contents is explosively increasing and it is often a challenging problem to find a content that will be appealing or matches users' current mood or affective state. In order to achieve this goal, an effcient indexing ... Keywords: affect, emotion, multimedia content analysis

Ashkan Yazdani; Krista Kappeler; Touradj Ebrahimi

2011-11-01T23:59:59.000Z

304

Fuel Flexible Combustion Systems for High-Efficiency Utilization of Opportunity Fuels in Gas Turbines  

SciTech Connect

The purpose of this program was to develop low-emissions, efficient fuel-flexible combustion technology which enables operation of a given gas turbine on a wider range of opportunity fuels that lie outside of current natural gas-centered fuel specifications. The program encompasses a selection of important, representative fuels of opportunity for gas turbines with widely varying fundamental properties of combustion. The research program covers conceptual and detailed combustor design, fabrication, and testing of retrofitable and/or novel fuel-flexible gas turbine combustor hardware, specifically advanced fuel nozzle technology, at full-scale gas turbine combustor conditions. This project was performed over the period of October 2008 through September 2011 under Cooperative Agreement DE-FC26-08NT05868 for the U.S. Department of Energy/National Energy Technology Laboratory (USDOE/NETL) entitled "Fuel Flexible Combustion Systems for High-Efficiency Utilization of Opportunity Fuels in Gas Turbines". The overall objective of this program was met with great success. GE was able to successfully demonstrate the operability of two fuel-flexible combustion nozzles over a wide range of opportunity fuels at heavy-duty gas turbine conditions while meeting emissions goals. The GE MS6000B ("6B") gas turbine engine was chosen as the target platform for new fuel-flexible premixer development. Comprehensive conceptual design and analysis of new fuel-flexible premixing nozzles were undertaken. Gas turbine cycle models and detailed flow network models of the combustor provide the premixer conditions (temperature, pressure, pressure drops, velocities, and air flow splits) and illustrate the impact of widely varying fuel flow rates on the combustor. Detailed chemical kinetic mechanisms were employed to compare some fundamental combustion characteristics of the target fuels, including flame speeds and lean blow-out behavior. Perfectly premixed combustion experiments were conducted to provide experimental combustion data of our target fuels at gas turbine conditions. Based on an initial assessment of premixer design requirements and challenges, the most promising sub-scale premixer concepts were evaluated both experimentally and computationally. After comprehensive screening tests, two best performing concepts were scaled up for further development. High pressure single nozzle tests were performed with the scaled premixer concepts at target gas turbine conditions with opportunity fuels. Single-digit NOx emissions were demonstrated for syngas fuels. Plasma-assisted pilot technology was demonstrated to enhance ignition capability and provide additional flame stability margin to a standard premixing fuel nozzle. However, the impact of plasma on NOx emissions was observed to be unacceptable given the goals of this program and difficult to avoid.

Venkatesan, Krishna

2011-11-30T23:59:59.000Z

305

Affective-Cognitive learning and decision making: a motivational reward framework for affective agents  

Science Conference Proceedings (OSTI)

In this paper we present a new computational framework of affective-cognitive learning and decision making for affective agents, inspired by human learning and recent neuroscience and psychology. In the proposed framework internal reward from ...

Hyungil Ahn; Rosalind W. Picard

2005-10-01T23:59:59.000Z

306

Marcellus natural gas pipeline projects to primarily benefit New ...  

U.S. Energy Information Administration (EIA)

On October 17, the Federal Energy Regulatory Agency (FERC) authorized the start of initial service on these expansions. New England consumers, however, ...

307

Multi-modal affect induction for affective brain-computer interfaces  

Science Conference Proceedings (OSTI)

Reliable applications of affective brain-computer interfaces (aBCI) in realistic, multi-modal environments require a detailed understanding of the processes involved in emotions. To explore the modalityspecific nature of affective responses, we studied ... Keywords: ECG, EEG, affective brain-computer interfaces, auditory, emotion, multi-modal, visual

Christian Mhl; Egon L. van den Broek; Anne-Marie Brouwer; Femke Nijboer; Nelleke van Wouwe; Dirk Heylen

2011-10-01T23:59:59.000Z

308

FTP Emissions Test Results from Flexible-Fuel Methanol Dodge Spirits and Ford Econoline Vans  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

FTP Emissions Test Results from Flexible-Fuel FTP Emissions Test Results from Flexible-Fuel Methanol Dodge Spirits and Ford Econoline Vans Kenneth J. Kelly, Brent K. Bailey, and Timothy C. Coburn National Renewable Energy Laboratory Wendy Clark Automotive Testing Laboratories, Inc. Leslie Eudy ManTech Environmental Technology, Inc. Peter Lissiuk Environmental Research and Development Corp. Presented at Society for Automotive Engineers International Spring Fuels and Lubricants Meeting Dearborn, MI May 6-8, 1996 The work described here was wholly funded by the U.S. Department of Energy, a U.S. government agency. As such, this information is in the public domain, may be copied and otherwise accessed freely, and is not subject to copyright laws. These papers were previously published in hard copy form by the Society of Automotive Engineers, Inc.

309

Study of Multifamily Energy Retrofit Using Flexible Multizone Building Simulation Model  

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

Study of Multifamily Study of Multifamily Energy Retrofit using Flexible, Multizone Building Simulation Model Piljae Im, Ph.D. Mini Malhotra, Ph.D. R&D Staff Oak Ridge National Laboratory Presented at Building America Technical Update Meeting April 29-30, 2013 Outline * Multifamily Energy Audit Tool - Background - Needs for MF Audit Tool - Existing MF Tools - Modeling Approach - Development Status * Case Study - Background - Pre/Post Retrofit Building characteristics - Whole Building Energy Analysis * Summary Managed by UT-Battelle for the U.S. Department of Energy Study of Multifamily Energy Retrofit using Flexible, Multizone Building Simulation Model 2 Background * New MF Building Energy Audit Tool sponsored by U.S. DOE * Collaboration of ORNL and LBNL * National web-based

310

Semi-flexible gas-insulated transmission line using electric field stress shields  

DOE Patents (OSTI)

A gas-insulated transmission line includes an outer sheath, an inner conductor, an insulating gas electrically insulating the inner conductor from the outer sheath, and insulating supports insulatably supporting the inner conductor within the outer sheath. The inner conductor is provided with flexibility by use of main conductor sections which are joined together through a conductor hub section and flexible flexing elements. Stress shields are provided to control the electric field at the locations of the conductor hub sections where the insulating supports are contacting the inner conductor. The flexing elements and the stress shields may also be utilized in connection with a plug and socket arrangement for providing electrical connection between main conductor sections. 10 figs.

Cookson, A.H.; Dale, S.J.; Bolin, P.C.

1982-12-28T23:59:59.000Z

311

Semi-flexible gas-insulated transmission line using sandwiched discs for intermittent flexing joints  

DOE Patents (OSTI)

A gas-insulated transmission line includes an outer sheath, an inner conductor, an insulating gas electrically insulating the inner conductor from the outer sheath, and insulating supports insulatably supporting the inner conductor within the outer sheath. The inner conductor is provided with flexibility by the use of main conductor sections which are joined together through a conductor hub section and flexible flexing elements. Stress shields are provided to control the electric field at the locations of the conductor hub sections where the insulating supports are contacting the inner conductor. The flexing elements are formed by sandwiching together, by fusing, a pair of thin hollow discs which are fixedly secured to both the main conductor sections and the conductor hub section. 4 figs.

Kommineni, P.R.

1983-02-15T23:59:59.000Z

312

Semi-flexible gas-insulated transmission line using sandwiched discs for intermittent flexing joints  

DOE Patents (OSTI)

A gas-insulated transmission line includes an outer sheath, an inner conductor, an insulating gas electrically insulating the inner conductor from the outer sheath, and insulating supports insulatably supporting the inner conductor within the outer sheath. The inner conductor is provided with flexibility by the use of main conductor sections which are joined together through a conductor hub section and flexible flexing elements. Stress shields are provided to control the electric field at the locations of the conductor hub sections where the insulating supports are contacting the inner conductor. The flexing elements are formed by sandwiching together, by fusing, a pair of thin hollow discs which are fixedly secured to both the main conductor sections and the conductor hub section.

Kommineni, Prasad R. (Westboro, MA)

1983-02-15T23:59:59.000Z

313

Semi-flexible gas-insulated transmission line using electric field stress shields  

DOE Patents (OSTI)

A gas-insulated transmission line includes an outer sheath, an inner conductor, an insulating gas electrically insulating the inner conductor from the outer sheath, and insulating supports insulatably supporting the inner conductor within the outer sheath. The inner conductor is provided with flexibility by use of main conductor sections which are joined together through a conductor hub section and flexible flexing elements. Stress shields are provided to control the electric field at the locations of the conductor hub sections where the insulating supports are contacting the inner conductor. The flexing elements and the stress shields may also be utilized in connection with a plug and socket arrangement for providing electrical connection between main conductor sections.

Cookson, Alan H. (Churchill Borough, PA); Dale, Steinar J. (Monroeville, PA); Bolin, Philip C. (Wilkins Township, Allegheny County, PA)

1982-12-28T23:59:59.000Z

314

Flexible connector  

DOE Patents (OSTI)

An electrical connector accommodates high current, is not labor intensive to assemble and disassemble, and allows a wide range of motion to accommodate mechanical variations and movement of connected components. The connector comprises several parts with joints therebetween, wherein each joint provides electrical connection between and allows relative motion of the joined parts. The combination of parts and joints maintains electrical connection between two electrical components even if the components are misaligned or move after connection.

Savage, Mark E. (Albuquerque, NM); Simpson, Walter W. (Albuquerque, NM)

1999-01-01T23:59:59.000Z

315

Flexible nanogenerators  

DOE Patents (OSTI)

A small scale electrical generator includes an elongated substrate and a first piezoelectric fine wire. The first piezoelectric fine wire is disposed along a surface of the substrate. The first piezoelectric fine wire has a first end and a spaced-apart second end. A first conductive contact secures the first end of the fine wire to a first portion of the substrate and a second conductive contact secures the second end of the fine wire to a second portion of the substrate. A fabric made of interwoven strands that includes fibers from which piezoelectric nanowires extend radially therefrom and conductive nanostructures extend therefrom is configured to generate electricity.

Wang, Zhong L. (Marietta, GA); Wang, Xudong (Atlanta, GA); Qin, Yong (Atlanta, GA); Yang, Rusen (Atlanta, GA)

2011-07-19T23:59:59.000Z

316

Flexible urbanism  

E-Print Network (OSTI)

This thesis seeks to find a new approach/method towards urbanization in existing low density neighborhoods in major metropolitan cities in the United States. The near South side of the city of Chicago (a city that carries ...

Anandam, Anahita

2006-01-01T23:59:59.000Z

317

Flexible connector  

DOE Patents (OSTI)

An electrical connector accommodates high current, is not labor intensive to assemble and disassemble, and allows a wide range of motion to accommodate mechanical variations and movement of connected components. The connector comprises several parts with joints therebetween, wherein each joint provides electrical connection between and allows relative motion of the joined parts. The combination of parts and joints maintains electrical connection between two electrical components even if the components are misaligned or move after connection. 6 figs.

Savage, M.E.; Simpson, W.W.

1999-07-27T23:59:59.000Z

318

Proceedings: EPRI 2009 HVDC and Flexible AC Transmission Systems (FACTS) Conference  

Science Conference Proceedings (OSTI)

The 2009 EPRI HVDC and FACTS Conference was held November 5-6, 2009, at the headquarters of Tri-State Generation and Transmission Association, Inc. in Westminster, Colorado. The conference brought together utilities, researchers, and equipment suppliers to discuss the current state of research and development in high-voltage direct current (HVDC) and flexible AC transmission systems (FACTS) technologies. The presentations and session discussions covered a broad range of initiatives under way in North Ame...

2009-12-17T23:59:59.000Z

319

Combustion Impacts of Flexible Operation: Low Load, Load Following, and Increased Staging Impact on Boiler Tubes  

Science Conference Proceedings (OSTI)

Over the past few years, coal-fired generating units have changed from stable base load operation to flexible operation, including periods of prolonged low-load operation. These changes in operation can have various adverse effects on all plant equipment, particularly in older units and may impact their ability to operate without tube failures due to elevated levels of fireside corrosion and circumferential cracking. This report discusses the combustion-related impacts of low-load, load-following, ...

2013-12-23T23:59:59.000Z

320

Unit Operational Flexibility: Low-Load Turndown of a Large Supercritical Boiler  

Science Conference Proceedings (OSTI)

Power plants must be able to match their output with system demand, which varies with the season and, more important, with the time of the day. Additionally, the variable nature of many renewable generation assets places flexibility pressure on traditional generation.BackgroundEPRI has a history of investigating off-design operation of power plants dating back more than 30 years. The issues surrounding variable pressure operation (VPO) are well understood; ...

2013-12-20T23:59:59.000Z

Note: This page contains sample records for the topic "flexibility primarily affects" 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.


321

{100} or 45.degree.-rotated {100}, semiconductor-based, large-area, flexible, electronic devices  

Science Conference Proceedings (OSTI)

Novel articles and methods to fabricate the same resulting in flexible, {100} or 45.degree.-rotated {100} oriented, semiconductor-based, electronic devices are disclosed. Potential applications of resulting articles are in areas of photovoltaic devices, flat-panel displays, thermophotovoltaic devices, ferroelectric devices, light emitting diode devices, computer hard disc drive devices, magnetoresistance based devices, photoluminescence based devices, non-volatile memory devices, dielectric devices, thermoelectric devices and quantum dot laser devices.

Goyal, Amit (Knoxville, TN)

2012-05-15T23:59:59.000Z

322

Valuing the Flexibility of Providing System Services for Coal Plants with Carbon Capture Capability  

Science Conference Proceedings (OSTI)

This technical update describes a preliminary study of the potential value associated with using the operating flexibility available from advanced coal plant designs with carbon capture and storage (CCS) systems, as well as from existing coal plants with CCS retrofits, to participate in ancillary service markets. New analytical approaches are introduced that offer the ability to examine plant outputs and operating modes in the context of varying power market conditions151for real power and for reserve a...

2010-12-31T23:59:59.000Z

323

Highly Responsive Ultrathin GaS Nanosheet Photodetectors on Rigid and Flexible Substrates  

Science Conference Proceedings (OSTI)

The first GaS nanosheet-based photodetectors are demonstrated on both mechanically rigid and flexible substrates. Highly-crystalline, exfoliated GaS nanosheets are promising for optoelectronics due to strong absorption in the UV-visible wavelength region. Photocurrent measurements of GaS nanosheet photodetectors made on SiO2/Si substrates and flexible polyethylene terephthalate (PET) substrates exhibit a photo-responsivity at 254nm up to 4.2 AW-1 and 19.2 AW-1, respectively, which exceeds that of graphene, MoS2, or other 2D materials-based devices. Additionally, the linear dynamic range of the devices on SiO2/Si and PET substrates are 97.7dB and 78.73 dB, respectively. Both surpass that of currently-exploited InGaAs photodetectors (66 dB). Theoretical modeling of the electronic structures indicates that the reduction of the effective mass at the valence band maximum (VBM) with decreasing sheet thickness enhances the carrier mobility of the GaS nanosheets, contributing to the high photocurrents. Double-peak VBMs are theoretically predicted for ultrathin GaS nanosheets (thickness less than 5 monolayers), which is found to promote photon absorption. These theoretical and experimental results show that GaS nanosheets are promising materials for high performance photodetectors on both conventional silicon and flexible substrates.

Hu, Prof Pingan [Harbin Institute of Technology; Wang, Lifeng [Harbin Institute of Technology; Yoon, Mina [ORNL; Zhang, Jia [Harbin Institute of Technology; Feng, Wei [Harbin Institute of Technology; Wang, Xiaona [Harbin Institute of Technology; Wen, Zhenzhong [Harbin Institute of Technology; Idrobo Tapia, Juan C [ORNL; Miyamoto, Yoshiyuki [National Institute of Advanced Industrial Science and Technology, Japan; Geohegan, David B [ORNL; Xiao, Kai [ORNL

2013-01-01T23:59:59.000Z

324

Static Pressure Loss in 12, 14, and 16 Non-metallic Flexible Duct  

E-Print Network (OSTI)

This study was conducted to determine the effects of compression on pressure drops in non-metallic flexible duct. Duct sizes of 12, 14 and 16 diameters were tested at a five different compression ratios (maximum stretch, 4%, 15%, 30% and 45%) following the draw through methodology in ASHRAE Standard 120 -1999 Methods of Testing to Determine Flow Resistance of Air Ducts and Fittings. With the pressure drop data gathered, equations were developed to approximate the pressure loss at a given air flow rate for a given duct size. The data gathered showed general agreement with previous studies showing an increase in compression ratio leads to an increase in static pressure loss through the duct. It was determined that pressure losses for compression ratios greater than 4% were over four times greater than maximum stretched flexible duct of corresponding duct size. The increased static pressure losses can lead to decreased performance in HVAC systems. The findings of this study add to the existing ASHRAE and industry data for flexible duct with varying compression ratios.

Cantrill, David Lee

2013-08-01T23:59:59.000Z

325

An overview of the NREL/SNL flexible turbine characterization project  

DOE Green Energy (OSTI)

There has been a desire to increase the generating capacity of the latest generation of wind turbine designs. In order to achieve these larger capacities, the dimensions of the turbine rotors are also increasing significantly. These larger structures are often much more flexible than their smaller predecessors. This higher degree of structural flexibility has placed increased demands on available analytical models to accurately predict the dynamic response to turbulence excitation, In this paper we present an overview and our progress to date of a joint effort of the National Renewable Energy Laboratory (NREL) and the Sandia National Laboratory (SNL). In this paper we present an overview and status of an ongoing program to characterize and analytically model the dynamics associated with the operation of one of the most flexible turbine designs currently available, the Cannon Wind Eagle 300 (CWE-300). The effort includes extensive measurements involving a detailed inventory of the turbine's physical properties, establishing the turbine component and fill-system vibrational modes, and documenting the dynamic deformations of the rotor system and support tower while in operation.

Bir, Gunjit; Kelley, Neil; McKenna, Ed; Osgood, Richard; Sutherland, Herbert; Wright, Alan

1998-09-01T23:59:59.000Z

326

Semi-flexible hydrogen-bonded and non-hydrogen bonded lattice polymers  

E-Print Network (OSTI)

We investigate the addition of stiffness to the lattice model of hydrogen-bonded polymers in two and three dimensions. We find that, in contrast to polymers that interact via a homogeneous short-range interaction, the collapse transition is unchanged by any amount of stiffness: this supports the physical argument that hydrogen bonding already introduces an effective stiffness. Contrary to possible physical arguments, favouring bends in the polymer does not return the model's behaviour to that comparable to the semi-flexible homogeneous interaction model, where the canonical $\\theta$-point occurs for a range of parameter values. In fact, for sufficiently large bending energies the crystal phase disappears altogether, and no phase transition of any type occurs. We also compare the order-disorder transition from the globule phase to crystalline phase in the semi-flexible homogeneous interaction model to that for the fully-flexible hybrid model with both hydrogen and non-hydrogen like interactions. We show that these phase transitions are of the same type and are a novel polymer critical phenomena in two dimensions. That is, it is confirmed that in two dimensions this transition is second-order, unlike in three dimensions where it is known to be first order. We also estimate the crossover exponent and show that there is a divergent specific heat, finding $\\phi=0.7(1)$ or equivalently $\\alpha=0.6(2)$. This is therefore different from the $\\theta$ transition, for which $\\alpha=-1/3$.

J Krawczyk; AL Owczarek; T Prellberg

2008-07-06T23:59:59.000Z

327

Factors affecting home range of mallard pairs  

SciTech Connect

Certain habitat and social factors were investigated for their effect on home range size of mallard (Anas platyhynchos) pairs breeding in a forested region of north-central Minnesota during the spring of 1971--72. Data from 31 radio-marked hens and drakes were used, but primary emphasis was placed on 8 pairs (5 with both members of the pair marked). Pairs were radio-tracked on river marsh areas, river channels, and large sand lakes to provide comparative data for evaluating home range size differences. Home ranges varied from an average of 53 ha for pairs using primarily river habitat to 871 ha for pairs using only large sand lakes. River and lake shorelines varied considerably in species and density of vegetation. Interaction between pairs as well as density of flocked males appeared to be influenced by these habitat differences with resultant effects on home range sizes.

Riechmann, J.H.

1976-06-01T23:59:59.000Z

328

A meso-scale unit-cell based material model for the single-ply flexible-fabric armor M. Grujicic a,*, W.C. Bell a  

E-Print Network (OSTI)

A meso-scale unit-cell based material model for the single-ply flexible-fabric armor M. Grujicic a April 2008 Accepted 12 February 2009 Available online 20 February 2009 Keywords: Flexible armor Meso-scale unit-cell based material model for a prototypical plain-woven single-ply flexible armor is developed

Grujicic, Mica

329

Modelling affect expression and recognition in an interactive learning environment  

Science Conference Proceedings (OSTI)

Affective reasoning holds significant potential for intelligent tutoring systems. Incorporating affective reasoning into pedagogical decision-making capabilities could enable learning environments to create customised experiences that are dynamically ... Keywords: HCI, ITS, affect expression, affect recognition, affective student modelling, empathy, human-computer interaction, inductive learning, intelligent tutoring systems, interactive learning, physiological response, self-efficacy, situational context, student affect

Scott W. McQuiggan; James C. Lester

2009-10-01T23:59:59.000Z

330

Reliability analysis of a passive cooling system using a response surface with an application to the Flexible Conversion Ratio Reactor  

E-Print Network (OSTI)

A comprehensive risk-informed methodology for passive safety system design and performance assessment is presented and demonstrated on the Flexible Conversion Ratio Reactor (FCRR). First, the methodology provides a framework ...

Fong, Christopher J. (Christopher Joseph)

2008-01-01T23:59:59.000Z

331

An Annotated Bibliography of High-Voltage Direct-Current Transmission and Flexible AC Transmission (FACTS) Devices, 1991-1993.  

SciTech Connect

References are contained for HVDC systems, converter stations and components, overhead transmission lines, cable transmission, system design and operations, simulation of high voltage direct current systems, high-voltage direct current installations, and flexible AC transmission system (FACTS).

Litzenberger, Wayne; Lava, Val

1994-08-01T23:59:59.000Z

332

Fuel-flexible partial oxidation reforming of hydrocarbons for automotive applications.  

DOE Green Energy (OSTI)

Micro-reactor tests indicate that our partial oxidation catalyst is fuel-flexible and can reform conventional (gasoline and diesel) and alternative (ethanol, methanol, natural gas) fuels to hydrogen rich product gases with high hydrogen selectivity. Alcohols are reformed at lower temperatures (< 600 C) while alkanes and unsaturated hydrocarbons require slightly higher temperatures. Cyclic hydrocarbons and aromatics have also been reformed at relatively low temperatures, however, a different mechanism appears to be responsible for their reforming. Complex fuels like gasoline and diesel, which are mixtures of a broad range of hydrocarbons, require temperatures of > 700 C for maximum hydrogen production.

Ahmed, S.; Carter, J. D.; Kopasz, J. P.; Krumpelt, M.; Wilkenhoener, R.

1999-06-07T23:59:59.000Z

333

Silicon-Based Thermoelectrics: Harvesting Low Quality Heat Using Economically Printed Flexible Nanostructured Stacked Thermoelectric Junctions  

Science Conference Proceedings (OSTI)

Broad Funding Opportunity Announcement Project: UIUC is experimenting with silicon-based materials to develop flexible thermoelectric deviceswhich convert heat into energythat can be mass-produced at low cost. A thermoelectric device, which resembles a computer chip, creates electricity when a different temperature is applied to each of its sides. Existing commercial thermoelectric devices contain the element tellurium, which limits production levels because tellurium has become increasingly rare. UIUC is replacing this material with microscopic silicon wires that are considerably cheaper and could be equally effective. Improvements in thermoelectric device production could return enough wasted heat to add up to 23% to our current annual electricity production.

None

2010-03-01T23:59:59.000Z

334

Flexible polyvinyl chloride neutron guides for transporting ultracold and very cold neutrons  

SciTech Connect

The transmission of ultracold neutrons (UCNs) through flexible polyvinyl chloride (PVC) tubes with lengths of up to 3 m and an internal diameter of 6-8 mm has been studied. High UCN transmission is found even for arbitrarily bent tubes (single bend, double bend, triple bend, figure eight, etc.). The transmission can be improved significantly by coating the inner surface of the tube with a thin layer of liquid fluorine polymer. The prospects of these neutron guides in fundamental and applied research are discussed.

Arzumanov, S. S., E-mail: sarzumanov@yandex.ru; Bondarenko, L. N. [Russian Research Center Kurchatov Institute (Russian Federation); Geltenbort, P. [Institut Laue-Langevin (France); Morozov, V. I. [Russian Research Center Kurchatov Institute (Russian Federation); Nesvizhevsky, V. V. [Institut Laue-Langevin (France); Panin, Yu. N.; Strepetov, A. N.; Chuvilin, D. Yu. [Russian Research Center Kurchatov Institute (Russian Federation)

2011-12-15T23:59:59.000Z

335

Damping control of a large flexible manipulator through inertial forces of a small manipulator  

SciTech Connect

Damping control is applied to a detailed computer model of a long- reach flexible manipulator test bed. The test bed consists of a long slender link with a dexterous manipulator mounted at its tip. The movement of the dexterous manipulator is controlled to create inertial damping forces on the long link. Parameter identification and sequential loop-closure are used to design a controller that feeds back relative tip position and velocity of the long link to control the azimuth angle of the dexterous manipulator. The controller is designed to be robust to varying manipulator loading conditions and reliable under sensor failures.

Trudnowski, D.J.; Baker, C.P.; Evans, M.S.

1993-06-01T23:59:59.000Z

336

1995 Reformulated Gasoline Market Affected Refiners Differently  

Gasoline and Diesel Fuel Update (EIA)

5 Reformulated Gasoline Market Affected 5 Reformulated Gasoline Market Affected Refiners Differently by John Zyren, Charles Dale and Charles Riner Introduction The United States has completed its first summer driving season using reformulated gasoline (RFG). Motorists noticed price increases at the retail level, resulting from the increased cost to produce and deliver the product, as well as from the tight sup- ply/demand balance during the summer. This arti- cle focuses on the costs of producing RFG as experienced by different types of refiners and on how these refiners fared this past summer, given the prices for RFG at the refinery gate. RFG Regulatory Requirements The use of RFG is a result of the Clean Air Act Amendments of 1990 (CAAA). The CAAA cover a wide range of programs aimed at improving air qual-

337

Variables Affecting Economic Development of Wind Energy  

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

Variables Affecting Economic Variables Affecting Economic Development of Wind Energy E. Lantz and S. Tegen National Renewable Energy Laboratory Presented at WINDPOWER 2008 Houston, Texas June 1-4, 2008 Conference Paper NREL/CP-500-43506 July 2008 NREL is operated by Midwest Research Institute ● Battelle Contract No. DE-AC36-99-GO10337 NOTICE The submitted manuscript has been offered by an employee of the Midwest Research Institute (MRI), a contractor of the US Government under Contract No. DE-AC36-99GO10337. Accordingly, the US Government and MRI retain a nonexclusive royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for US Government purposes. This report was prepared as an account of work sponsored by an agency of the United States government.

338

Towards More Flexible and Robust Data Delivery for Monitoring and Control of the Electric Power Grid  

E-Print Network (OSTI)

URL for this paper: www.gridstat.net/TR-GS-009.pdf AbstractWith the increase in the monitoring of status data at very high rates in high voltage substations and the ability to time synchronize these data with GPS signals, there is a growing need for transmitting this data for monitoring, operation, protection and control needs. The sets of data that need to be transferred and the speed at which they need to be transferred depend on the application for example, slow for post-event analysis, near real-time for monitoring and as close to real-time as possible for control or protection. In this paper, we overview the requirements for the next-generation power grids communication infrastructure in the areas of flexibility and quality of service, with extensive citations of power industry practitioners and researchers, and analyze implementation options. We also overview technologies in the computer science field of distributed computing that can be brought to bear to help meet these requirements, yet to date have not been discussed in the context of grid modernization. Additionally, we argue against the industry trend of using either TCP/IP or web services for real-time data exchange for fast controls. We then describe GridStat, a novel middleware framework we have developed that is suitable for the power grid and its application programs. Test results demonstrate that such a flexible framework can also guarantee

David E. Bakken; Carl H. Hauser; Harald Gjermundrd; Anjan Bose

2007-01-01T23:59:59.000Z

339

Tau protein binds to microtubules through a flexible array of distributed weak sites. Z Cell Biol  

E-Print Network (OSTI)

Abstract. Tau protein plays a role in the extension and maintenance of neuronal processes through a direct association with microtubules. To characterize the nature of this association, we have synthesized a collection of tau protein fragments and studied their binding properties. The relatively weak affinity of tau protein for microtubules (ti10- ' M) is concentrated in a large region containing three or four 18 amino acid repeated binding elements. These are separated by apparently flexible but less conserved linker sequences of 13-14 amino acids that do not bind. Within the repeats, the binding energy for microtubules is delocalized and derives from a series of weak interactions contributed by small groups of amino acids. These unusual char acteristics suggest tau protein can assume multiple conformations and can pivot and perhaps migrate on the surface of the microtubule. The flexible structure of the tau protein binding interaction may allow it to be easily displaced from the microtubule lattice and may have important consequences for its function. TAU protein is a microtubule-associated protein present In brain and other neuronal tissues (Binder et al., 1985; Drubin et al., 1986; Weingarten et al., 1975). It is found in the axonal microtubules of mature neurons (Binder et al., 1985) and in the axonlike elongated neurite processes synthesized by differentiating neurons in culture

Karena Butner; Marc W. Kirschner

1991-01-01T23:59:59.000Z

340

The Integrated Plasma Simulator: A Flexible Python Framework for Coupled Multiphysics Simulation  

SciTech Connect

High-fidelity coupled multiphysics simulations are an increasingly important aspect of computational science. In many domains, however, there has been very limited experience with simulations of this sort, therefore research in coupled multiphysics often requires computational frameworks with significant flexibility to respond to the changing directions of the physics and mathematics. This paper presents the Integrated Plasma Simulator (IPS), a framework designed for loosely coupled simulations of fusion plasmas. The IPS provides users with a simple component architecture into which a wide range of existing plasma physics codes can be inserted as components. Simulations can take advantage of multiple levels of parallelism supported in the IPS, and can be controlled by a high-level ``driver'' component, or by other coordination mechanisms, such as an asynchronous event service. We describe the requirements and design of the framework, and how they were implemented in the Python language. We also illustrate the flexibility of the framework by providing examples of different types of simulations that utilize various features of the IPS.

Foley, Samantha S [ORNL; Elwasif, Wael R [ORNL; Bernholdt, David E [ORNL

2011-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "flexibility primarily affects" 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

WindoWorks: A flexible program for computerized testing of accelerator control system electronic circuit boards  

SciTech Connect

Since most accelerator control system circuit boards reside in a commercial bus architecture, such as CAMAC or VMEbus, a computerized test station is needed for exercising the boards. This test station is needed for the development of newly designed prototypes, for commissioning newly manufactured boards, for diagnosing boards which have failed in service, and for long term testing of boards with intermittent failure problems. WindoWorks was created to address these needs. It is a flexible program which runs on a PC compatible computer and uses a PC to bus crate interface. WindoWorks was designed to give the user a flexible way to test circuit boards. Each test is incapsulated into a window. By bringing up several different windows the user can run several different tests simultaneously. The windows are sizable, and moveable. They have data entry boxes so that the test can be customized to the users preference. The windows can be used in conjunction with each other in order to create supertests. There are several windows which are generic. They can be used to test basic functions on any VME (or CAMAC) board. There are other windows which have been created to test specific boards. New windows for testing specific boards can be easily created by a Pascal programmer using the WindoWorks framework.

Utterback, J.

1993-09-01T23:59:59.000Z

342

Assessment of costs and benefits of flexible and alternative fuel use in the US transportation sector  

DOE Green Energy (OSTI)

The DOE is conducting a comprehensive technical analysis of a flexible-fuel transportation system in the United States -- that is, a system that could easily switch between petroleum and another fuel, depending on price and availability. The DOE Alternative Fuels Assessment is aimed directly at questions of energy security and fuel availability, but covers a wide range of issues. This report examines environmental, health, and safety concerns associated with a switch to alternative- and flexible-fuel vehicles. Three potential alternatives to oil-based fuels in the transportation sector are considered: methanol, compressed natural gas (CNG), and electricity. The objective is to describe and discuss qualitatively potential environmental, health, and safety issues that would accompany widespread use of these three fuels. This report presents the results of exhaustive literature reviews; discussions with specialists in the vehicular and fuel-production industries and with Federal, State, and local officials; and recent information from in-use fleet tests. Each chapter deals with the end-use and process emissions of air pollutants, presenting an overview of the potential air pollution contribution of the fuel --relative to that of gasoline and diesel fuel -- in various applications. Carbon monoxide, particulate matter, ozone precursors, and carbon dioxide are emphasized. 67 refs., 6 figs. , 8 tabs.

Not Available

1991-10-01T23:59:59.000Z

343

Flexible Pillared Graphene-Paper Electrodes for High-Performance Electrochemical Supercapacitors  

SciTech Connect

Flexible graphene paper (GP) pillared by carbon black (CB) nanoparticles using a simple vacuum filtration method is developed as a high-performance electrode material for supercapacitors. Through the introduction of CB nanoparticles as spacers, the self-restacking of graphene sheets during the filtration process is mitigated to a great extent. The pillared GP-based supercapacitors exhibit excellent electrochemical performances and cyclic stabilities compared with GP without the addition of CB nanoparticles. At a scan rate of 10 mV s?1, the specific capacitance of the pillared GP is 138 F g^?1 and 83.2 F g^?1 with negligible 3.85% and 4.35% capacitance degradation after 2000 cycles in aqueous and organic electrolytes, respectively. At an extremely fast scan rate of 500 mV s ^?1, the specific capacitance can reach 80 F g^?1 in aqueous electrolyte. No binder is needed for assembling the supercapacitor cells and the pillared GP itself may serve as a current collector due to its intrinsic high electrical conductivity. The pillared GP has great potential in the development of promising flexible and ultralight-weight supercapacitors for electrochemical energy storage.

Wang, Gongkai; Sun, Xiang; Lu, Fengyuan; Sun, Hongtao; Yu, Mingpeng; Jiang, Weilin; Liu, Changsheng; Lian, Jie

2012-02-09T23:59:59.000Z

344

A High-Flux, Flexible Membrane with Parylene-encapsulated Carbon Nanotubes  

Science Conference Proceedings (OSTI)

We present fabrication and characterization of a membrane based on carbon nanotubes (CNTs) and parylene. Carbon nanotubes have shown orders of magnitude enhancement in gas and water permeability compared to estimates generated by conventional theories [1, 2]. Large area membranes that exhibit flux enhancement characteristics of carbon nanotubes may provide an economical solution to a variety of technologies including water desalination [3] and gas sequestration [4]. We report a novel method of making carbon nanotube-based, robust membranes with large areas. A vertically aligned dense carbon nanotube array is infiltrated with parylene. Parylene polymer creates a pinhole free transparent film by exhibiting high surface conformity and excellent crevice penetration. Using this moisture-, chemical- and solvent-resistant polymer creates carbon nanotube membranes that promise to exhibit high stability and biocompatibility. CNT membranes are formed by releasing a free-standing film that consists of parylene-infiltrated CNTs, followed by CNT uncapping on both sides of the composite material. Thus fabricated membranes show flexibility and ductility due to the parylene matrix material, as well as high permeability attributed to embedded carbon nanotubes. These membranes have a potential for applications that may require high flux, flexibility and durability.

Park, H G; In, J; Kim, S; Fornasiero, F; Holt, J K; Grigoropoulos, C P; Noy, A; Bakajin, O

2008-03-14T23:59:59.000Z

345

On the Value of Input-Efficiency, Capacity-Efficiency, and the Flexibility to Rebalance Them  

E-Print Network (OSTI)

Abstract: A common characteristic of basic material manufacturers (which account for 85 % of all industrial energy use) and of cleantech manufacturers is that they are price-takers in their input and output markets. Variability in those prices has implications for how much a manufacturer should invest in three fundamental types of process improvement. Input price variability reduces the value of improving input-efficiency (output produced per unit input) but increases that of capacityefficiency (the rate at which a production facility can convert input into output). Output price variability increases the value of capacity-efficiency, but it increases the value of input-efficiency if and only if the expected margin is small. Moreover, as the expected input cost rises, the value of input-efficiency decreases. A third type of process improvement is to develop flexibility in inputefficiency versus capacity-efficiency (the ability to respond to a rise in input cost or fall in output price by increasing input-efficiency at the expense of capacity-efficiency). The value of this flexibility decreases with variability in input and output prices, if and only if the expected margin is thin. Together, these results suggest that a carbon tax or cap-and-trade system may reduce investment by basic material manufacturers in improving energy-efficiency.

Erica L. Plambeck; Terry A. Taylor

2013-01-01T23:59:59.000Z

346

Simultaneous synthesis of flexible heat exchanger network. Appl Thermal Eng 2002;22:90718  

E-Print Network (OSTI)

BSTRACT In industry there is still lot of potential to make an energy system more efficient and thereby reduce the waste heat available. On the other hand there is an option to export the waste heat to another industry or to society. When the use of a heat exchanger network is considered for these tasks the optimization framework developed in this work can be implemented to calculate the cost of optimal investments. This thesis presents a framework for generating flexible heat exchanger networks (HEN) over a specified range of variations in the flow rates and temperatures of the streams, so that the total annual costs (TAC) as a result of utility charges, exchanger areas and selection of matches are minimized. The proposed framework includes (i) an initialization stage to reduce the problem size, (ii) a multiperiod simultaneous MINLP model to synthesize a flexible HEN configuration, (iii) a multiperiod LP feasibility test model to check the operability and identify critical conditions which are to be included in the possible resolve stage of the MINLP model, and (iv) an NLP improvement model for further optimization

Juha Aaltola; Juha Aaltola; Otamedia Oy

2003-01-01T23:59:59.000Z

347

Acceptance test report, 241-SY-101 Flexible Receiver System, Phase 3 testing  

DOE Green Energy (OSTI)

This document summarizes the results of the phase 3 acceptance test of the 241-SY-101 Flexible Receiver System (FRS). The purpose of this acceptance test is to verify the sealing integrity of the FRS to ensure that the release of waste and aerosols will be minimized during the removal of the test mixer pump from Tank 241-SY-101. The FRS is one of six major components of the Equipment Removal System, which has been designed to retrieve, transport, and store the mixer pump. This acceptance test was performed at the 306E Facility in the 300 area from January 10, 1995 to January 17, 1995. The Phase 3 test consisted of two parts. Part one was a water leak test of the seal between the blast shield and mock load distribution frame (LDF) to ensure that significant contamination of the pump pit and waste interaction with the aluminum impact-limiting material under the LDF are prevented during the pump removal operation. The second part of this acceptance test was an air leak test of the assembled flexible receiver system. The purpose of this test was to verify that the release of hazardous aerosols will be minimized if the tank dome pressure becomes slightly positive during the decontamination of the mixer pump.

Ritter, G.A.

1995-02-06T23:59:59.000Z

348

Study of Factors Affecting Shrub Establishment on the Monticello...  

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

Study of Factors Affecting Shrub Establishment on the Monticello, Utah, Disposal Cell Cover Study of Factors Affecting Shrub Establishment on the Monticello, Utah, Disposal Cell...

349

Special Provisions Affecting Gas, Water, or Pipeline Companies...  

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

Agencies You are here Home Savings Special Provisions Affecting Gas, Water, or Pipeline Companies (South Carolina) Special Provisions Affecting Gas, Water, or Pipeline...

350

Factors affecting the indoor concentrations of carbonaceous aerosols...  

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

Factors affecting the indoor concentrations of carbonaceous aerosols of outdoor origin Title Factors affecting the indoor concentrations of carbonaceous aerosols of outdoor origin...

351

EO 13211: Regulations That Significantly Affect Energy Supply...  

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

211: Regulations That Significantly Affect Energy Supply, Distribution, or Use EO 13211: Regulations That Significantly Affect Energy Supply, Distribution, or Use I am requiring...

352

Exporting licensing regulations affecting US geothermal firms  

DOE Green Energy (OSTI)

This document presents a brief introduction and overview of the Department of Commerce's Export Administration Regulations which might affect potential US geothermal goods exporters. It is intended to make US geothermal firms officials aware of the existence of such regulations and to provide them with references, contacts and phone numbers where they can obtain specific and detailed information and assistance. It must be stressed however, that the ultimate responsibility for complying with the above mentioned regulations lies with the exporter who must consult the complete version of the regulations.

Not Available

1988-08-01T23:59:59.000Z

353

Analysis of a flexible polymeric film with imbedded micro heat pipes for spacecraft radiators  

E-Print Network (OSTI)

In response to the pursuit of interplanetary travel and a continuous human presence in space, there is increasing focus within the space industry on spacecraft designs that change configuration within the space environment. Flexible thermal radiators are being developed to accommodate deployment mechanisms. An analytical model suggests that a lightweight polymeric material with imbedded micro heat pipe arrays can meet heat dissipation requirements while contributing less mass than competing flexible materials. The heat pipe capillary limit is evaluated as a function of temperature using two candidate working fluids. Using water, maximum heat transport is 18 mW per channel at 140 to 160 C. Maximum heat transport using methanol is 2.2 mW at 120 C: an order-of-magnitude difference. A thermal circuit model translates heat transport per channel into total radiator capacity as a function of heat source temperature and environmental sink temperature. Using water as the working fluid, radiator capacity varies from 6.0 kW to 12.2 kW for source temperatures from 20 to 50 C. For source temperatures 40 C and higher, capacity meets or exceeds the dissipation requirements of a reference spacecraft design. Methanol is not recommended as a working fluid because it produces radiator capacities two to three times lower than when water is used. Although thermal control system specifications constrain the micro heat pipe operating range, design changes directed at alleviating capillary limitations should increase radiator capacity. Technical issues for further investigation include effects of film billowing; performance limitations related to vapor viscosity; working fluid diffusion; and chemical reactivity between the case and working fluid. Compared to a competing graphite fiber weave, the polymeric material has an effective conductivity over ten times higher. Its area power density (kW/m) is 18% to 60% lower than the graphite weave, but its mass power density (kW/kg) is several times higher. Greater flexibility and lower mass make it more amenable to structural integration than the graphite material. Recently developed space-stable polymers offer resistance to harsh temperature and radiation environments, helping to clear the path toward a more extensive use of polymers within the space industry.

McDaniels, Deborah Marie

2001-01-01T23:59:59.000Z

354

Does Daylight Savings Time Affect Traffic Accidents?  

E-Print Network (OSTI)

This paper studies the effect of changes in accident pattern due to Daylight Savings Time (DST). The extension of the DST in 2007 provides a natural experiment to determine whether the number of traffic accidents is affected by shifts in hours of daylight using the year as control group. Using data on traffic accidents in Texas based on crash reports provided by the Texas Transportation Institute, and a difference in differences technique, this study creates a regression model to determine how significant this factor is in affecting traffic accident patterns as observed in the data. Results show that DST has no statistically significant effect on traffic accidents of all categories including (but not limited to) highway, non-highway, and accidents, accidents with injuries and no injuries, and accidents by drivers of all age-groups. This implies that the federal governments policy of DST (and its extension) has no costs incurred by a rise in motor vehicle crashes when it gets dark early.

Deen, Sophia 1988-

2012-05-01T23:59:59.000Z

355

Assessment of costs and benefits of flexible and alternative fuel use in the US transportation sector  

Science Conference Proceedings (OSTI)

In 1988 the Department of Energy (DOE) undertook a comprehensive technical analysis of a flexible-fuel transportation system in the United States. During the next two decades, alternative fuels such as alcohol (methanol or ethanol), compressed natural gas (CNG), and electricity could become practical alternatives to oil-based fuels in the US transportation sector. The DOE Alternative Fuels Assessment is aimed directly at questions of energy security and fuel availability. To keep interested parties informed about the progress of the DOE Alternative Fuels Assessment, the Department periodically publishes reports dealing with particular aspects of this complex study. This report provides an analysis of the expected costs to produce methanol from biomass feedstock.

Not Available

1990-12-01T23:59:59.000Z

356

Piezoelectric coupling in energy-harvesting fluttering flexible plates : linear stability analysis and conversion efficiency  

E-Print Network (OSTI)

This paper investigates the energy harvested from the flutter of a plate in an axial flow by making use of piezoelectric materials. The equations for fully-coupled linear dynamics of the fluid-solid and electrical systems are derived. The continuous limit is then considered, when the characteristic length of the plate's deformations is large compared to the piezoelectric patches' length. The linear stability analysis of the coupled system is addressed from both a local and global point of view. Piezoelectric energy harvesting adds rigidity and damping on the motion of the flexible plate, and destabilization by dissipation is observed for negative energy waves propagating in the medium. This result is confirmed in the global analysis of fluttering modes of a finite-length plate. It is finally observed that waves or modes destabilized by piezoelectric coupling maximize the energy conversion efficiency.

Doare, Olivier

2011-01-01T23:59:59.000Z

357

Development of modifications for Coflexip flexible drilling pipe for high-temperature and -pressure geothermal service. Final report  

DOE Green Energy (OSTI)

Coflexip (France) flexible drilling pipe can provide economies in drilling geothermal wells. However, the current liner materials cannot take the high temperatures (approx.250C) and pressures (approx.69 MPa). Development was undertaken to replace the liner with higher temperature materials and, thus increase the temperature capability of the flexible pipe. DuPont Teflon PFA 350, L'Garde EPDM Y267 and L'Garde AFLAS 291 were considered but they all require backing by a closely woven stainless steel fabric to prevent extrusion. A graphite-reinforced EPDM elastomer was developed which has the potential of meeting the pressure-temperature requirements without the metal fabric reinforcement.

Friese, G.J.

1983-02-01T23:59:59.000Z

358

Final Technical Report, Oct 2004 - Nov. 2006, High Performance Flexible Reversible Solid Oxide Fuel Cell  

SciTech Connect

This report summarizes the work performed for the program entitled High Performance Flexible Reversible Solid Oxide Fuel Cell under Cooperative Agreement DE-FC36-04GO14351 for the U. S. Department of Energy. The overall objective of this project is to demonstrate a single modular stack that generates electricity from a variety of fuels (hydrogen and other fuels such as biomass, distributed natural gas, etc.) and when operated in the reverse mode, produces hydrogen from steam. This project has evaluated and selected baseline cell materials, developed a set of materials for oxygen and hydrogen electrodes, and optimized electrode microstructures for reversible solid oxide fuel cells (RSOFCs); and demonstrated the feasibility and operation of a RSOFC multi-cell stack. A 10-cell reversible SOFC stack was operated over 1000 hours alternating between fuel cell (with hydrogen and methane as fuel) and steam electrolysis modes. The stack ran very successfully with high power density of 480 mW/cm2 at 0.7V and 80% fuel utilization in fuel cell mode and >6 SLPM hydrogen production in steam electrolysis mode using about 1.1 kW electrical power. The hydrogen generation is equivalent to a specific capability of 2.59 Nm3/m2 with electrical energy demand of 3 kWh/Nm3. The performance stability in electrolysis mode was improved vastly during the program with a degradation rate reduction from 8000 to 200 mohm-cm2/1000 hrs. This was accomplished by increasing the activity and improving microstructure of the oxygen electrode. Both cost estimate and technology assessment were conducted. Besides the flexibility running under both fuel cell mode and electrolysis mode, the reversible SOFC system has the potentials for low cost and high efficient hydrogen production through steam electrolysis. The cost for hydrogen production at large scale was estimated at ~$2.7/kg H2, comparing favorably with other electrolysis techology.

Guan, Jie; Minh, Nguyen

2007-02-21T23:59:59.000Z

359

Long-term affected energy production of waste to energy technologies identified by use of energy system analysis  

Science Conference Proceedings (OSTI)

Affected energy production is often decisive for the outcome of consequential life-cycle assessments when comparing the potential environmental impact of products or services. Affected energy production is however difficult to determine. In this article the future long-term affected energy production is identified by use of energy system analysis. The focus is on different uses of waste for energy production. The Waste-to-Energy technologies analysed include co-combustion of coal and waste, anaerobic digestion and thermal gasification. The analysis is based on optimization of both investments and production of electricity, district heating and bio-fuel in a future possible energy system in 2025 in the countries of the Northern European electricity market (Denmark, Norway, Sweden, Finland and Germany). Scenarios with different CO{sub 2} quota costs are analysed. It is demonstrated that the waste incineration continues to treat the largest amount of waste. Investments in new waste incineration capacity may, however, be superseded by investments in new Waste-to-Energy technologies, particularly those utilising sorted fractions such as organic waste and refuse derived fuel. The changed use of waste proves to always affect a combination of technologies. What is affected varies among the different Waste-to-Energy technologies and is furthermore dependent on the CO{sub 2} quota costs and on the geographical scope. The necessity for investments in flexibility measures varies with the different technologies such as storage of heat and waste as well as expansion of district heating networks. Finally, inflexible technologies such as nuclear power plants are shown to be affected.

Muenster, M., E-mail: maem@risoe.dtu.d [Risoe National Laboratory for Sustainable Energy, Technical University of Denmark, Frederiksborgvej 399, 4000 Roskilde (Denmark); Meibom, P. [Risoe National Laboratory for Sustainable Energy, Technical University of Denmark, Frederiksborgvej 399, 4000 Roskilde (Denmark)

2010-12-15T23:59:59.000Z

360

Electrostatics and Flexibility Drive Membrane Recognition and Early Penetration by Antimicrobial Peptide Dendrimer bH1  

SciTech Connect

Molecular dynamics simulation of polycationic antimicrobial peptide dendrimer bH1 (Leu)8(DapLeu)4(DapPhe)2DapLys- NH2 binding to membranes suggest that electrostatic 10 interactions with the polyanionic lipopolysaccharide (LPS) and conformational flexibility of the 2,3-diaminopropanoic acid (Dap) branching units drive its selective insertion into microbial membranes.

Ravi, Harish Kumar; Stach, Michaela; Soares, Thereza A.; Darbre, Tamis; Reymond, Jean-Louis; Cascella, Michele

2013-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "flexibility primarily affects" 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 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

362

Fuel-Flexible Combustion System for Co-production Plant Applications  

Science Conference Proceedings (OSTI)

Future high-efficiency, low-emission generation plants that produce electric power, transportation fuels, and/or chemicals from fossil fuel feed stocks require a new class of fuel-flexible combustors. In this program, a validated combustor approach was developed which enables single-digit NO{sub x} operation for a future generation plants with low-Btu off gas and allows the flexibility of process-independent backup with natural gas. This combustion technology overcomes the limitations of current syngas gas turbine combustion systems, which are designed on a site-by-site basis, and enable improved future co-generation plant designs. In this capacity, the fuel-flexible combustor enhances the efficiency and productivity of future co-production plants. In task 2, a summary of market requested fuel gas compositions was created and the syngas fuel space was characterized. Additionally, a technology matrix and chemical kinetic models were used to evaluate various combustion technologies and to select two combustor concepts. In task 4 systems analysis of a co-production plant in conjunction with chemical kinetic analysis was performed to determine the desired combustor operating conditions for the burner concepts. Task 5 discusses the experimental evaluation of three syngas capable combustor designs. The hybrid combustor, Prototype-1 utilized a diffusion flame approach for syngas fuels with a lean premixed swirl concept for natural gas fuels for both syngas and natural gas fuels at FA+e gas turbine conditions. The hybrid nozzle was sized to accommodate syngas fuels ranging from {approx}100 to 280 btu/scf and with a diffusion tip geometry optimized for Early Entry Co-generation Plant (EECP) fuel compositions. The swozzle concept utilized existing GE DLN design methodologies to eliminate flow separation and enhance fuel-air mixing. With changing business priorities, a fully premixed natural gas & syngas nozzle, Protoytpe-1N, was also developed later in the program. It did not have the diluent requirements of Prototype-1 and was demonstrated at targeted gas turbine conditions. The TVC combustor, Prototype-2, premixes the syngas with air for low emission performance. The combustor was designed for operation with syngas and no additional diluents. The combustor was successfully operated at targeted gas turbine conditions. Another goal of the program was to advance the status of development tools for syngas systems. In Task 3 a syngas flame evaluation facility was developed. Fundamental data on syngas flame speeds and flame strain were obtained at pressure for a wide range of syngas fuels with preheated air. Several promising reduced order kinetic mechanisms were compared with the results from the evaluation facility. The mechanism with the best agreement was selected for application to syngas combustor modeling studies in Task 6. Prototype-1 was modeled using an advanced LES combustion code. The tools and combustor technology development culminate in a full-scale demonstration of the most promising technology in Task 8. The combustor was operated at engine conditions and evaluated against the various engine performance requirements.

Joel Haynes; Justin Brumberg; Venkatraman Iyer; Jonathan Janssen; Ben Lacy; Matt Mosbacher; Craig Russell; Ertan Yilmaz; Williams York; Willy Ziminsky; Tim Lieuwen; Suresh Menon; Jerry Seitzman; Ashok Anand; Patrick May

2008-12-31T23:59:59.000Z

363

Model of rotary-actuated flexible beam with notch filter vibration suppression controller and torque feedforward load compensation controller  

Science Conference Proceedings (OSTI)

This paper describes ORNL`s development of an environment for the simulation of robotic manipulators. Simulation includes the modeling of kinematics, dynamics, sensors, actuators, control systems, operators, and environments. Models will be used for manipulator design, proposal evaluation, control system design and analysis, graphical preview of proposed motions, safety system development, and training. Of particular interest is the development of models for robotic manipulators having at least one flexible link. As a first application, models have been developed for the Pacific Northwest Laboratory`s Flexible Beam Test Bed (PNL FBTB), which is a 1-Degree-of-Freedom, flexible arm with a hydraulic base actuator. ORNL transferred control algorithms developed for the PNL FBTB to controlling IGRIP models. A robust notch filter is running in IGRIP controlling a full dynamics model of the PNL test bed. Model results provide a reasonable match to the experimental results (quantitative results are being determined) and can run on ORNL`s Onyx machine in approximately realtime. The flexible beam is modeled as six rigid sections with torsional springs between each segment. The spring constants were adjusted to match the physical response of the flexible beam model to the experimental results. The controller is able to improve performance on the model similar to the improvement seen on the experimental system. Some differences are apparent, most notably because the IGRIP model presently uses a different trajectory planner than the one used by ORNL on the PNL test bed. In the future, the trajectory planner will be modified so that the experiments and models are the same. The successful completion of this work provides the ability to link C code with IGRIP, thus allowing controllers to be developed, tested, and tuned in simulation and then ported directly to hardware systems using the C language.

Bills, K.C.; Kress, R.L.; Kwon, D.S. [Oak Ridge National Lab., TN (United States); Baker, C.P. [Battelle, Richland, WA (United States). Dept. of Automation and Measurement Sciences

1994-12-31T23:59:59.000Z

364

Inkjet printing and low power laser annealing of silver nanoparticle traces for the realization of low resistivity lines for flexible electronics  

Science Conference Proceedings (OSTI)

We report on the realization of low resistance silver lines by inkjet printing of a commercial silver-based ink on a flexible kapton substrate and subsequent low energy laser annealing to promote nanoparticle coalescence. Our approach resulted in low ... Keywords: Flexible electronics, Inkjet printing, Laser annealing, Thin films

A. Chiolerio; G. Maccioni; P. Martino; M. Cotto; P. Pandolfi; P. Rivolo; S. Ferrero; L. Scaltrito

2011-08-01T23:59:59.000Z

365

Status of State Regulatory Policies Affecting DER Market Development  

Science Conference Proceedings (OSTI)

Distributed energy resources (DER) have the potential to significantly transform the relationship of utilities and customers, and to introduce a much richer set of tools for providing not only power, but also reliability, security, flexibility and power quality in energy systems. However, the deployment of DER has lagged far behind the expectations. One of the most significant barriers is the manner in which the electricity industry has been built and historically operated -- to suit customer needs under...

2004-01-19T23:59:59.000Z

366

Waste management under multiple complexities: Inexact piecewise-linearization-based fuzzy flexible programming  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Inexact piecewise-linearization-based fuzzy flexible programming is proposed. Black-Right-Pointing-Pointer It's the first application to waste management under multiple complexities. Black-Right-Pointing-Pointer It tackles nonlinear economies-of-scale effects in interval-parameter constraints. Black-Right-Pointing-Pointer It estimates costs more accurately than the linear-regression-based model. Black-Right-Pointing-Pointer Uncertainties are decreased and more satisfactory interval solutions are obtained. - Abstract: To tackle nonlinear economies-of-scale (EOS) effects in interval-parameter constraints for a representative waste management problem, an inexact piecewise-linearization-based fuzzy flexible programming (IPFP) model is developed. In IPFP, interval parameters for waste amounts and transportation/operation costs can be quantified; aspiration levels for net system costs, as well as tolerance intervals for both capacities of waste treatment facilities and waste generation rates can be reflected; and the nonlinear EOS effects transformed from objective function to constraints can be approximated. An interactive algorithm is proposed for solving the IPFP model, which in nature is an interval-parameter mixed-integer quadratically constrained programming model. To demonstrate the IPFP's advantages, two alternative models are developed to compare their performances. One is a conventional linear-regression-based inexact fuzzy programming model (IPFP2) and the other is an IPFP model with all right-hand-sides of fussy constraints being the corresponding interval numbers (IPFP3). The comparison results between IPFP and IPFP2 indicate that the optimized waste amounts would have the similar patterns in both models. However, when dealing with EOS effects in constraints, the IPFP2 may underestimate the net system costs while the IPFP can estimate the costs more accurately. The comparison results between IPFP and IPFP3 indicate that their solutions would be significantly different. The decreased system uncertainties in IPFP's solutions demonstrate its effectiveness for providing more satisfactory interval solutions than IPFP3. Following its first application to waste management, the IPFP can be potentially applied to other environmental problems under multiple complexities.

Sun Wei [Faculty of Engineering and Applied Science, University of Regina, Regina, Saskatchewan, S4S 0A2 (Canada); Huang, Guo H., E-mail: huang@iseis.org [Institute for Energy, Environment and Sustainability Research, UR-NCEPU, North China Electric Power University, Beijing 102206 (China); Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, S4S 0A2 (Canada); Lv Ying; Li Gongchen [Faculty of Engineering and Applied Science, University of Regina, Regina, Saskatchewan, S4S 0A2 (Canada)

2012-06-15T23:59:59.000Z

367

Development of a flexible optical fiber based high resolution integrated PET/MRI system  

SciTech Connect

Purpose: The simultaneous measurement of PET and magnetic resonance imaging (MRI) is an emerging field for molecular imaging research. Although optical fiber based PET/MRI systems have advantages on less interference between PET and MRI, there is a drawback in reducing the scintillation light due to the fiber. To reduce the problem, the authors newly developed flexible optical fiber bundle based block detectors and employed them for a high resolution integrated PET/MRI system. Methods: The flexible optical fiber bundle used 0.5 mm diameter, 80 cm long double clad fibers which have dual 12 mm Multiplication-Sign 24 mm rectangular inputs and a single 24 mm Multiplication-Sign 24 mm rectangular output. In the input surface, LGSO scintillators of 0.025 mol.% (decay time: {approx}31 ns: 0.9 mm Multiplication-Sign 1.3 mm Multiplication-Sign 5 mm) and 0.75 mol.% (decay time: {approx}46 ns: 0.9 mm Multiplication-Sign 1.3 mm Multiplication-Sign 6 mm) were optically coupled in depth direction to form depth-of-interaction detector, arranged in 11 Multiplication-Sign 13 matrix and optically coupled to the fiber bundle. The two inputs of the bundle are bent for 90 Degree-Sign , bound to one, and are optically coupled to a Hamamatsu 1-in. square position sensitive photomultiplier tube. Results: Light loss due to the fiber bundle could be reduced and the performance of the block detectors was improved. Eight optical fiber based block detectors (16 LGSO blocks) were arranged in a 56 mm diameter ring to form a PET system. Spatial resolution and sensitivity were 1.2 mm full-width at half-maximum and 1.2% at the central field-of-view, respectively. Sensitivity change was less than 1% for 2 Degree-Sign C temperature changes. This PET system was integrated with a 0.3 T permanent magnet MRI system which has 17 cm diameter hole at the yoke area for insertion of the PET detector ring. There was no observable interference between PET and MRI. Simultaneous imaging of PET and MRI was successfully performed for small animal studies. Conclusions: The authors confirmed that the developed high resolution PET/MRI system is promising for molecular imaging research.

Yamamoto, Seiichi; Watabe, Hiroshi; Kanai, Yasukazu; Watabe, Tadashi; Aoki, Masaaki; Sugiyama, Eiji; Kato, Katsuhiko; Hatazawa, Jun [Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Aichi 461-8673 (Japan); Department of Molecular Imaging in Medicine, Osaka University Graduate School of Medicine, Osaka 565-0871 (Japan); Department of Nuclear Medicine and Tracer Kinetics, Osaka University Graduate School of Medicine, 565-0871 Osaka (Japan); Neomax Engineering, Takasaki 370-2115 (Japan); Department of Radiological and Medical Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya 461-8673 (Japan); Department of Nuclear Medicine and Tracer Kinetics, Osaka University Graduate School of Medicine, Osaka 565-0871 (Japan) and Department of Molecular Imaging in Medicine, Osaka University Graduate School of Medicine, Osaka 565-0871 (Japan)

2012-11-15T23:59:59.000Z

368

INCREASED FLEXIBILITY OF TURBO-COMPRESSORS IN NATURAL GAS TRANSMISSION THROUGH DIRECT SURGE CONTROL  

Science Conference Proceedings (OSTI)

The objective of this Direct Surge Control project was to develop a new internal method to avoid surge of pipeline compressors. This method will safely expand the range and flexibility of compressor operations, while minimizing wasteful recycle flow at the lower end of the operating envelope. The approach is to sense the onset of surge with a probe that directly measures re-circulation at the impeller inlet. The signals from the probe are used by a controller to allow operation at low flow conditions without resorting to a predictive method requiring excessive margin to activate a recycle valve. The sensor developed and demonstrated during this project was a simple, rugged, and sensitive drag probe. Experiments conducted in a laboratory compressor clearly showed the effectiveness of the technique. Subsequent field demonstrations indicated that the increase in range without the need to recycle flow was on the order of 19% to 25%. The cost benefit of applying the direct surge control technology appears to be as much as $120 per hour per compressor for operation without the current level of recycle flow. This could amount to approximately $85 million per year for the U.S. Natural Gas Transmission industry, if direct surge control systems are applied to most pipeline centrifugal compressors.

Robert J. McKee; Shane P. Siebenaler; Danny M. Deffenbaugh

2005-02-25T23:59:59.000Z

369

Flexible CoScheduling : mitigating load imbalance and improving utilization of heterogeneous resources  

Science Conference Proceedings (OSTI)

Fine-grained parallel applications require all their processes to run simultaneously on distinct processors to achieve good efficiency. This is typically accomplished by space slicing, wherein nodes are dedicated for the duration of the run, or by gang scheduling, wherein time slicing is coordinated across processors. Both schemes suffer from fragmentation, where processors are left idle because jobs cannot be packed with perfect efficiency. Obviously, this leads to reduced utilization and sub-optimal performance. Flexible coscheduling (FCS) solves this problem by monitoring each job's granularity and communication activity, and using gang scheduling only for those jobs that require it. Processes from other jobs, which can be scheduled without any constraints, are used as filler to reduce fragmentation. In addition, inefficiencies due to load imbalance and hardware heterogeneity are also reduced because the classification is done on a per-process basis. FCS has been fully implemented as part of the STORM resource manager, and shown to be competitive with gang scheduling and implicit coscheduling. Keywords: Cluster computing, load balancing, job scheduling, gang scheduling, parallel architectures, heterogeneous clusters, STORM

Frachtenberg, E. (Eitan); Feitelson, Dror G.; Petrini, F. (Fabrizio); Fernndez, J. C. (Juan C.)

2002-01-01T23:59:59.000Z

370

Working Paper #73 Making Buildings Part of the Climate Solution with Flexible Innovative Financing  

E-Print Network (OSTI)

Lack of attractive financing remains one of the most significant barriers to energy-efficiency improvements in commercial buildings. This paper examines a flexible financing policy that would support state and local initiatives via loan loss reserves, tax lien financing, revolving loans, performance contracts, and on-bill programs. We examine the impact of different levels of subsidy covering different numbers of technologies, ultimately selecting a 10 % subsidy for 64 qualifying technologies. This policy would save almost half a quad of energy in 2020 and 1.04 quads in 2035, producing net social benefits of $105 billion and a benefit/cost ratio of 1.9. Technologies with significant growth in market share include advanced fluorescents and variable-air-volume ventilation systems. Case studies of other technologies illustrate the advantage of optimizing financial assistance to reflect product maturity and cost-competiveness. A 10 % subsidy would produce an estimated ten-fold increase in the amount spent on highefficiency equipment in 2035, and the $3.9 billion subsidy in that year would have only an 11% rate of free ridership. *Corresponding author:

Benjamin Deitchman; Marilyn A. Brown; Yu Wang; Dr. Marilyn; A. Brown; D. M. Smith Building

2012-01-01T23:59:59.000Z

371

Designing interlayers to improve the mechanical reliability of transparent conductive oxide coatings on flexible substrates  

Science Conference Proceedings (OSTI)

In this study, we investigate the effect of interlayers on the mechanical properties of transparent conductive oxide (TCO) on flexible polymer substrates. Indium tin oxide (ITO), which is the most widely used TCO film, and Ti, which is the most widely used adhesive interlayer, are selected as the coating and the interlayer, respectively. These films are deposited on the polymer substrates using dc-magnetron sputtering to achieve varying thicknesses. The changes in the following critical factors for film cracking and delamination are analyzed: the internal stress ({sigma}{sup i}) induced in the coatings during deposition using a white light interferometer, the crystallinity using a transmission electron microscope, and the surface roughness of ITO caused by the interlayer using an atomic force microscope. The resistances to the cracking and delamination of ITO are evaluated using a fragmentation test. Our tests and analyses reveal the important role of the interlayers, which significantly reduce the compressive {sigma}{sup i} that is induced in the ITO and increase the resistance to the buckling delamination of the ITO. However, the relaxation of {sigma}{sup i} is not beneficial to cracking because there is less compensation for the external tension as {sigma}{sup i} further decreases. Based on these results, the microstructural control is revealed as a more influential factor than {sigma}{sup i} for improving crack resistance.

Kim, Eun-Hye; Yang, Chan-Woo; Park, Jin-Woo [Department of Materials Science and Engineering, Yonsei University, Seoul 120-749 (Korea, Republic of)

2012-05-01T23:59:59.000Z

372

The phase diagram of ice: a quasi-harmonic study based on a flexible water model  

E-Print Network (OSTI)

The phase diagram of ice is studied by a quasi-harmonic approximation. The free energy of all experimentally known ice phases has been calculated with the flexible q-TIP4P/F model of water. The only exception is the high pressure ice X, in which the presence of symmetric O-H-O bonds prevents its modeling with this empirical interatomic potential. The simplicity of our approach allows us to study ice phases at state points of the T-P plane that have been omitted in previous simulations using free energy methods based on thermodynamic integration. The effect in the phase diagram of averaging the proton disorder that appears in several ice phases has been studied. It is found particularly relevant for ice III, at least for cell sizes typically used in phase coexistence simulations. New insight into the capability of the employed water model to describe the coexistence of ice phases is presented. We find that the H-ordered ices IX and XIV, as well as the H-disordered ice XII, are particularly stable for this wate...

Ramirez, R; Herrero, C P

2013-01-01T23:59:59.000Z

373

A flexible high-rate USB2 data acquisition system for PET and SPECT imaging  

SciTech Connect

A new flexible data acquisition system has been developed to instrument gamma-ray imaging detectors designed by the Jefferson Lab Detector and Imaging Group. Hardware consists of 16-channel data acquisition modules installed on USB2 carrier boards. Carriers have been designed to accept one, two, and four modules. Application trigger rate and channel density determines the number of acquisition boards and readout computers used. Each channel has an independent trigger, gated integrator and a 2.5 MHz 12-bit ADC. Each module has an FPGA for analog control and signal processing. Processing includes a 5 ns 40-bit trigger time stamp and programmable triggering, gating, ADC timing, offset and gain correction, charge and pulse-width discrimination, sparsification, event counting, and event assembly. The carrier manages global triggering and transfers module data to a USB buffer. High-granularity time-stamped triggering is suitable for modular detectors. Time stamped events permit dynamic studies, complex offline event assembly, and high-rate distributed data acquisition. A sustained USB data rate of 20 Mbytes/s, a sustained trigger rate of 300 kHz for 32 channels, and a peak trigger rate of 2.5 MHz to FIFO memory were achieved. Different trigger, gating, processing, and event assembly techniques were explored. Target applications include >100 kHz coincidence rate PET detectors, dynamic SPECT detectors, miniature and portable gamma detectors for small-animal and clinical use.

J. Proffitt, W. Hammond, S. Majewski, V. Popov, R.R. Raylman, A.G. Weisenberger, R. Wojcik

2006-02-01T23:59:59.000Z

374

"Flexible aerogel as a superior thermal insulation for high temperature superconductor cable applications"  

Science Conference Proceedings (OSTI)

High temperature superconducting (HTS) cables are an advanced technology that can both strengthen and improve the national electrical distribution infrastructure. HTS cables require sufficient cooling to overcome inherent low temperature heat loading. Heat loads are minimized by the use of cryogenic envelopes or cryostats. Cryostats require improvement in efficiency, reliability, and cost reduction to meet the demanding needs of HTS conductors (1G and 2G wires). Aspen Aerogels has developed a compression resistant aerogel thermal insulation package to replace compression sensitive multi-layer insulation (MLI), the incumbent thermal insulation, in flexible cryostats for HTS cables. Oak Ridge National Laboratory tested a prototype aerogel package in a lab-scale pipe apparatus to measure the rate of heat invasion. The lab-scale pipe test results of the aerogel solution will be presented and directly compared to MLI. A compatibility assessment of the aerogel material with HTS system components will also be presented. The aerogel thermal insulation solution presented will meet the demanding needs of HTS cables.

White, Shannon O. [Aspen Aerogel, Inc.; Demko, Jonathan A [ORNL; Tomich, A. [Aspen Aerogel, Inc.

2010-01-01T23:59:59.000Z

375

Acceptance test report, 241-SY-101 Flexible Receiver System, Phase 1 testing  

DOE Green Energy (OSTI)

This document summarizes the results of the Phase 1 acceptance test of the 241-SY-101 Flexible Receiver System (FRS). This acceptance test consisted of a pressure-decay/leak test of the containment bag to verify that the seams along the length of the bag had been adequately sealed. The sealing integrity of the FRS must be verified to ensure that the release of waste and aerosols will be minimized during the removal of the test mixer pump from Tank 241-SY-101. The FRS is one of six major components of the Equipment Removal System, which has been designed to retrieve, transport, and store the mixer pump. This acceptance test was performed at Lancs Industries in Kirkland, Washington on January 17, 1995. The bag temperature-compensated pressure loss of 575 Pa was below the acceptance criteria of 625 Pa and the test results were therefore found to be acceptable. The bag manufacturer estimates that 80--90% of the pressure loss is attributed to leakage around the bag inflation valve where the pressure gage was connected. A leak detector was applied over the entire bag during the pre-tests and no leakage was found. Furthermore, the leak rate corresponding to this pressure loss is very small when compared to the acceptable leak rate of the completely assembled FRS. The sealing integrity of the assembled FRS is verified in Phase 3 testing.

Ritter, G.A.

1995-02-06T23:59:59.000Z

376

Automatic Detection of Learner's Affect From Gross Body Language  

Science Conference Proceedings (OSTI)

We explored the reliability of detecting learners' affect by monitoring their gross body language (body position and arousal) during interactions with an intelligent tutoring system called AutoTutor. Training and validation data on affective states were ...

Sidney D'Mello; Art Graesser

2009-02-01T23:59:59.000Z

377

Factors Affecting the Dissolution of Resorbable Bioactive Glasses  

Science Conference Proceedings (OSTI)

Factors affecting dissolution are numerous: residual stress, composition, ... and manufacturing method on the dissolution behaviour of glasses with fixed overall...

378

Cohesion Relationships in Tutorial Dialogue as Predictors of Affective States  

Science Conference Proceedings (OSTI)

We explored the possibility of predicting learners' affective states (boredom, flow/engagement, confusion, and frustration) by monitoring variations in the cohesiveness of tutorial dialogues during interactions with AutoTutor, an intelligent tutoring ... Keywords: Affect, Affective States, Autotutor, Coh-Metrix, Cohesion, Coreference, Discourse, Emotion, Intelligent Tutoring Systems

Sidney D'Mello; Nia Dowell; Art Graesser

2009-07-01T23:59:59.000Z

379

Developing Japanese WordNet Affect for analyzing emotions  

Science Conference Proceedings (OSTI)

This paper reports the development of Japanese WordNet Affect from the English WordNet Affect lists with the help of English SentiWordNet and Japanese WordNet. Expanding the available synsets of the English WordNet Affect ...

Yoshimitsu Torii; Dipankar Das; Sivaji Bandyopadhyay; Manabu Okumura

2011-06-01T23:59:59.000Z

380

Development of the Low Swirl Injector for Fuel-Flexible GasTurbines  

DOE Green Energy (OSTI)

Industrial gas turbines are primarily fueled with natural gas. However, changes in fuel cost and availability, and a desire to control carbon dioxide emissions, are creating pressure to utilize other fuels. There is an increased interest in the use of fuels from coal gasification, such as syngas and hydrogen, and renewable fuels, such as biogas and biodiesel. Current turbine fuel injectors have had years of development to optimize their performance with natural gas. The new fuels appearing on the horizon can have combustion properties that differ substantially from natural gas. Factors such as turbulent flame speed, heat content, autoignition characteristics, and range of flammability must be considered when evaluating injector performance. The low swirl injector utilizes a unique flame stabilization mechanism and is under development for gas turbine applications. Its design and mode of operation allow it to operate effectively over a wide range of conditions. Studies conducted at LBNL indicate that the LSI can operate on fuels with a wide range of flame speeds, including hydrogen. It can also utilize low heat content fuels, such as biogas and syngas. We will discuss the low swirl injector operating parameters, and how the LSC performs with various alternative fuels.

Littlejohn, D.; Cheng, R.K.; Nazeer,W.A.; Smith, K.O

2007-02-14T23:59:59.000Z

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381

The roles of CymA in support of the respiratory flexibility of Shewanella oneidensis MR-1  

Science Conference Proceedings (OSTI)

Shewanella species are isolated from the oxic/anoxic regions of seawater and aquatic sediments where redox conditions fluctuate in time and space. Colonization of these environments is by virtue of flexible respiratory chains, many of which are notable for the ability to reduce extracellular substrates including the Fe(III) and Mn(IV) contained in oxide and phyllosilicate minerals. Shewanella oneidensis MR-1 serves as a model organism to consider the biochemical basis of this flexibility. In the present paper, we summarize the various systems that serve to branch the respiratory chain of S. oneidensis MR-1 in order that electrons from quinol oxidation can be delivered the various terminal electron acceptors able to support aerobic and anaerobic growth. This serves to highlight several unanswered questions relating to the regulation of respiratory electron transport in Shewanella and the central role(s) of the tetrahaem-containing quinol dehydrogenase CymA in that process.

Marritt, Sophie; McMillan, Duncan G.; Shi, Liang; Fredrickson, Jim K.; Zachara, John M.; Richardson, David J.; Jeuken, Lars J.; Butt, Julea N.

2012-12-01T23:59:59.000Z

382

Semi-flexible gas-insulated transmission line using protection tube in conductor plug-in joint  

DOE Patents (OSTI)

A gas-insulated transmission line includes an outer sheath, an inner conductor, an insulating gas electrically insulating the inner conductor from the outer sheath, and insulating supports insulatably supporting the inner conductor within the outer sheath. The inner conductor is provided with flexibility by main conductor sections which are joined together through a conductor hub section and flexible flexing elements. Stress shields are provided to control the electric field at the locations of the conductor hub sections where the insulating supports are contacting the inner conductor. A plug and socket arrangement is utilized for joining adjacent sections of the inner conductor, and a protection tube is utilized inside the hollow plug to maintain proper alignment of the joint when the transmission line is bent. 3 figs.

Kommineni, P.R.

1983-01-25T23:59:59.000Z

383

Semi-flexible gas-insulated transmission line using protection tube in conductor plug-in joint  

DOE Patents (OSTI)

A gas-insulated transmission line includes an outer sheath, an inner conductor, an insulating gas electrically insulating the inner conductor from the outer sheath, and insulating supports insulatably supporting the inner conductor within the outer sheath. The inner conductor is provided with flexibility by main conductor sections which are joined together through a conductor hub section and flexible flexing elements. Stress shields are provided to control the electric field at the locations of the conductor hub sections where the insulating supports are contacting the inner conductor. A plug and socket arrangement is utilized for joining adjacent sections of the inner conductor, and a protection tube is utilized inside the hollow plug to maintain proper alignment of the joint when the transmission line is bent.

Kommineni, Prasad R. (Westboro, MA)

1983-01-25T23:59:59.000Z

384

Inferring Group Processes from Computer-Mediated Affective Text Analysis  

SciTech Connect

Political communications in the form of unstructured text convey rich connotative meaning that can reveal underlying group social processes. Previous research has focused on sentiment analysis at the document level, but we extend this analysis to sub-document levels through a detailed analysis of affective relationships between entities extracted from a document. Instead of pure sentiment analysis, which is just positive or negative, we explore nuances of affective meaning in 22 affect categories. Our affect propagation algorithm automatically calculates and displays extracted affective relationships among entities in graphical form in our prototype (TEAMSTER), starting with seed lists of affect terms. Several useful metrics are defined to infer underlying group processes by aggregating affective relationships discovered in a text. Our approach has been validated with annotated documents from the MPQA corpus, achieving a performance gain of 74% over comparable random guessers.

Schryver, Jack C [ORNL; Begoli, Edmon [ORNL; Jose, Ajith [Missouri University of Science and Technology; Griffin, Christopher [Pennsylvania State University

2011-02-01T23:59:59.000Z

385

Acceptance test report, 241-SY-101 Flexible Receiver System, Phase 2 testing  

DOE Green Energy (OSTI)

This document summarizes the results of the Phase 2 acceptance test of the 241-SY-101 Flexible Receiver System (FRS). The FRS is one of six major components of the Equipment Removal System, which has been designed to retrieve, transport, and store the test mixer pump currently installed in Tank 241-SY-101. The purpose of this acceptance test is to verify the strength of the containment bag and bag bottom cinching mechanism. It is postulated that 68 gallons of waste could be trapped inside the pump internals. The bag must be capable of supporting this waste if it shakes loose and drains to the bottom of the bag after the bag bottom has been cinched closed. This acceptance test was performed at the Maintenance and Storage Facility (MASF) Facility in the 400 area on January 23, 1995. The bag assembly supported the weight of 920 kg (2,020 lbs) of water with no leakage or damage to the bag. This value meets the acceptance criteria of 910 kg of water and therefore the results were found to be acceptable. The maximum volume of liquid expected to be held up in the pump internals is 258 L (68 gallons), which corresponds to 410 kg. This test weight gives just over a safety factor of 2. The bag also supported a small shock load while it was filled with water when the crane hoisted the bag assembly up and down. Based on the strength rating of the bag components, the bag assembly should support 2--3 times the test weight of 910 kg.

Ritter, G.A.

1995-02-06T23:59:59.000Z

386

A small diameter, flexible, all attitude, self-contained germanium spectrometer. Operator`s manual  

SciTech Connect

The end of the Cold War has brought about tremendous changes in the nuclear complex of the Department of Energy. One of the many changes has been the shutdown or decommissioning of many facilities that performed nuclear work. One of the steps in the process of decommissioning a facility involves the decontamination or removal of drain lines or pipes that may have carried radioactive materials at one time. The removal of all these pipes and drain lines to a nuclear disposal facility could be quite costly. It was suggested by Pacific Northwest National Laboratory (PNNL) that a germanium spectrometer could be built that could fit through straight pipes with a diameter as small as 5.08 cm (2 inches) and pass through curved pipes with a diameter as small as 7.6 cm (3 inches) such as that of a 3-inch p-trap in a drain line. The germanium spectrometer could then be used to simultaneously determine all gamma-ray emitting radionuclides in or surrounding the pipe. By showing the absence of any gamma-ray emitting radionuclides, the pipes could then be reused in place or disposed of as non-radioactive material, thus saving significantly in disposal costs. A germanium spectrometer system has been designed by PNNL and fabricated by Princeton Gamma Tech (PGT) that consists of three segments, each 4.84 cm in diameter and about 10 cm in length. Flexible stainless steel bellows were used to connect the segments. Segment 1 is a small liquid nitrogen reservoir. The reservoir is filled with a sponge-like material which enables the detector to be used in any orientation. A Stirling cycle refrigerator is under development which can replace the liquid nitrogen reservoir to provide continuous cooling and operation.

Bordzindki, R.L.; Lepel, E.A.; Reeves, J.H. [Battelle, Pacific Northwest National Lab., Richland, WA (United States); Kohli, R. [Battelle, Columbus Lab., OH (United States)

1997-05-01T23:59:59.000Z

387

Operational Flexibility Implementation: Case Study #3: Extreme Turndown of a Coal-Fired Drum-Type Unit  

Science Conference Proceedings (OSTI)

BackgroundThe case study presented in this report is the third in a series that examines the variety of challenges that electric utilities face in trying to improve flexibility in the operational performance of their generation assets. Each case is unique in both the performance goals that are sought by the utility and the equipment and operational limitations that are present.ObjectiveTo reduce the minimum achievable power level ...

2013-11-21T23:59:59.000Z

388

{100}<100> or 45.degree.-rotated {100}<100>, semiconductor-based, large-area, flexible, electronic devices  

SciTech Connect

Novel articles and methods to fabricate the same resulting in flexible, {100}<100> or 45.degree.-rotated {100}<100> oriented, semiconductor-based, electronic devices are disclosed. Potential applications of resulting articles are in areas of photovoltaic devices, flat-panel displays, thermophotovoltaic devices, ferroelectric devices, light emitting diode devices, computer hard disc drive devices, magnetoresistance based devices, photoluminescence based devices, non-volatile memory devices, dielectric devices, thermoelectric devices and quantum dot laser devices.

Goyal, Amit (Knoxville, TN)

2012-05-15T23:59:59.000Z

389

FEEDSTOCK-FLEXIBLE REFORMER SYSTEM (FFRS) FOR SOLID OXIDE FUEL CELL (SOFC)- QUALITY SYNGAS  

DOE Green Energy (OSTI)

The U.S. Department of Energy National Energy Technology Laboratory funded this research collaboration effort between NextEnergy and the University of Michigan, who successfully designed, built, and tested a reformer system, which produced highquality syngas for use in SOFC and other applications, and a novel reactor system, which allowed for facile illumination of photocatalysts. Carbon and raw biomass gasification, sulfur tolerance of non-Platinum Group Metals (PGM) based (Ni/CeZrO2) reforming catalysts, photocatalysis reactions based on TiO2, and mild pyrolysis of biomass in ionic liquids (ILs) were investigated at low and medium temperatures (primarily 450 to 850 C) in an attempt to retain some structural value of the starting biomass. Despite a wide range of processes and feedstock composition, a literature survey showed that, gasifier products had narrow variation in composition, a restriction used to develop operating schemes for syngas cleanup. Three distinct reaction conditions were investigated: equilibrium, autothermal reforming of hydrocarbons, and the addition of O2 and steam to match the final (C/H/O) composition. Initial results showed rapid and significant deactivation of Ni/CeZrO2 catalysts upon introduction of thiophene, but both stable and unstable performance in the presence of sulfur were obtained. The key linkage appeared to be the hydrodesulfurization activity of the Ni reforming catalysts. For feed stoichiometries where high H2 production was thermodynamically favored, stable, albeit lower, H2 and CO production were obtained; but lower thermodynamic H2 concentrations resulted in continued catalyst deactivation and eventual poisoning. High H2 levels resulted in thiophene converting to H2S and S surface desorption, leading to stable performance; low H2 levels resulted in unconverted S and loss in H2 and CO production, as well as loss in thiophene conversion. Bimetallic catalysts did not outperform Ni-only catalysts, and small Ni particles were found to have lower activities under S-free conditions, but did show less effect of S on performance, in this study. Imidazolium-based ILs, choline chloride compounds and low-melting eutectics of metal nitrates were evaluated, and it was found that, ILs have some capacity to dissolve cellulose and show thermal stability to temperatures where pyrolysis begins, have no vapor pressure, (simplifying product recoveries), and can dissolve ionic metal salts, allowing for the potential of catalytic reactions on breakdown intermediates. Clear evidence of photoactive commercial TiO2 was obtained, but in-house synthesis of photoactive TiO2 proved difficult, as did fixed-bed gasification, primarily due to the challenge of removing the condensable products from the reaction zone quickly enough to prevent additional reaction. Further investigation into additional non-PGM catalysts and ILs is recommended as a follow-up to this work.

Kelly Jezierski; Andrew Tadd; Johannes Schwank; Roland Kibler; David McLean; Mahesh Samineni; Ryan Smith; Sameer Parvathikar; Joe Mayne; Tom Westrich; Jerry Mader; F. Michael Faubert

2010-07-30T23:59:59.000Z

390

INCREASED FLEXIBILITY OF TURBO-COMPRESSORS IN NATURAL GAS TRANSMISSION THROUGH DIRECT SURGE CONTROL  

Science Conference Proceedings (OSTI)

This preliminary phase 1 report summarizes the background and the work on the ''Increased Flexibility of Turbo-Compressors in Natural Gas Transmission through Direct Surge Control'' project to date. The importance of centrifugal compressors for natural gas transmission is discussed, and the causes of surge and the consequences of current surge control approaches are explained. Previous technology development, including findings from early GMRC research, previous surge detection work, and selected publications, are presented. The project is divided into three Phases to accomplish the project objectives of verifying near surge sensing, developing a prototype surge control system (sensor and controller), and testing/demonstrating the benefits of direct surge control. Specification for the direct surge control sensor and controller developed with guidance from the industry Oversight Committee is presented in detail. Results of CFD modeling conducted to aid in interpreting the laboratory test results are shown and explained. An analysis of the system dynamics identified the data sampling and handling requirements for direct surge control. A detailed design process for surge detection probes has been developed and explained in this report and has been used to prepare drag probes for the laboratory compressor test and the first field test. The surge detection probes prepared for testing have been bench tested and flow tested to determine and calibrate their sensitivity to flow forces as shown in data presented in this report. The surge detection drag probes have been shown to perform as expected and as required to detect approaching surge. Laboratory test results of surge detection in the SwRI centrifugal compressor demonstrated functionality of the surge detection probes and a change in the impeller inlet flow pattern prior to surge. Although the recirculation cannot be detected because of the specific geometry of this compressor, there are changes that indicate the approach of surge that can be detected. Preparations for a field test had been completed at one point in the project. However, a failure of the surge probe wiring just inside the compressor case has caused a delay in the field testing. Repairs for the wiring in the compressor have been scheduled and the field test will take place shortly after the repairs.

Robert J. McKee

2003-05-01T23:59:59.000Z

391

Fuel Economy and Emissions of a Vehicle Equipped with an Aftermarket Flexible-Fuel Conversion Kit  

DOE Green Energy (OSTI)

The U.S. Environmental Protection Agency (EPA) grants Certificates of Conformity for alternative fuel conversion systems and also offers other forms of premarket registration of conversion kits for use in vehicles more than two model years old. Use of alternative fuels such as ethanol, natural gas, and propane are encouraged by the Energy Policy Act of 1992. Several original equipment manufacturers (OEMs) produce emissions-certified vehicles capable of using alternative fuels, and several alternative fuel conversion system manufacturers produce EPA-approved conversion systems for a variety of alternative fuels and vehicle types. To date, only one manufacturer (Flex Fuel U.S.) has received EPA certifications for ethanol fuel (E85) conversion kits. This report details an independent evaluation of a vehicle with a legal installation of a Flex Fuel U.S. conversion kit. A 2006 Dodge Charger was baseline tested with ethanol-free certification gasoline (E0) and E20 (gasoline with 20 vol % ethanol), converted to flex-fuel operation via installation of a Flex Box Smart Kit from Flex Fuel U.S., and retested with E0, E20, E50, and E81. Test cycles included the Federal Test Procedure (FTP or city cycle), the highway fuel economy test (HFET), and the US06 test (aggressive driving test). Averaged test results show that the vehicle was emissions compliant on E0 in the OEM condition (before conversion) and compliant on all test fuels after conversion. Average nitrogen oxide (NOx) emissions exceeded the Tier 2/Bin 5 intermediate life NO{sub X} standard with E20 fuel in the OEM condition due to two of three test results exceeding this standard [note that E20 is not a legal fuel for non-flexible-fuel vehicles (non-FFVs)]. In addition, one E0 test result before conversion and one E20 test result after conversion exceeded the NOX standard, although the average result in these two cases was below the standard. Emissions of ethanol and acetaldehyde increased with increasing ethanol, while nonmethane organic gas and CO emissions remained relatively unchanged for all fuels and cycles. Higher fraction ethanol blends appeared to decrease NO{sub X} emissions on the FTP and HFET (after conversion). As expected, fuel economy (miles per gallon) decreased with increasing ethanol content in all cases.

Thomas, John F [ORNL; Huff, Shean P [ORNL; West, Brian H [ORNL

2012-04-01T23:59:59.000Z

392

Parametric adaptation algorithm for the basic law used to control orientation of a large space structure on the base of flexible modes envelope estimation  

Science Conference Proceedings (OSTI)

Problem of reducing the level of flexible oscillations in angular motion of a large space structure is considered. To solve the problem, adaptation algorithm for a certain parameter of the basic law used to control the object's orientation is proposed. ...

A. V. Silaev

2010-05-01T23:59:59.000Z

393

A life-cycle flexibility framework for designing, evaluating and managing "complex" real options : case studies in urban transportation and aircraft systems  

E-Print Network (OSTI)

Designing a flexible system with real options is a method for managing uncertainty. This research introduces the concept of "complex" real options, which are composed of interconnected echnological, organizational and ...

McConnell, Joshua B. (Joshua Bryan), 1974-

2007-01-01T23:59:59.000Z

394

Gas Balancing Rules Must Take into account the Trade-off between Offering Pipeline Transport and Pipeline Flexibility in Liberalized Gas Markets  

E-Print Network (OSTI)

This paper analyses the value and cost of line-pack flexibility in liberalized gas markets through the examination of the techno-economic characteristics of gas transport pipelines and the trade-offs between the different ...

Keyaerts, Nico

395

Energy and Materials Issues That Affect Electric Vehicle Batteries  

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

leaching processes on the spent battery (without smelting). Argonne has published several papers on Ni-MH batteries. Energy and Materials Issues That Affect Electric Vehicle...

396

Factors affecting adoption of renewable and other electricity ...  

U.S. Energy Information Administration (EIA)

U.S. Energy Information Administration Independent Statistics & Analysis www.eia.gov Factors affecting adoption of renewable and other electricity generation technologies

397

Solar activity can affect transmission grid, but 2013 activity ...  

U.S. Energy Information Administration (EIA)

The report provided recommendations for managing the risks of such geomagnetic disturbances while also noting that large transformers are disproportionately affected.

398

Buildings Energy Data Book: 4.4 Legislation Affecting Energy...  

Buildings Energy Data Book (EERE)

2 Executive Order 13423, Provisions Affecting Energy Consumption in Federal Buildings Source(s): -- Requires Federal agencies to improve energy efficiency and reduce greenhouse gas...

399

Marcellus natural gas production gains affect spreads between ...  

U.S. Energy Information Administration (EIA)

... issues, and trends. FAQs Glossary For ... Marcellus natural gas production gains affect spreads ... Supporting increased use of natural gas for power ...

400

What are the major factors affecting natural gas prices? - FAQ ...  

U.S. Energy Information Administration (EIA)

What are the major factors affecting natural gas prices? Natural gas prices are mainly a function of market supply and demand. Because there are ...

Note: This page contains sample records for the topic "flexibility primarily affects" 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

Lawrence Livermore study finds human activity affects vertical...  

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

human activity affects vertical structure of atmospheric temperature Anne M Stark, LLNL, (925) 422-9799, stark8@llnl.gov Human influences have directly impacted the latitude...

402

A real-time, multimodal, and dimensional affect recognition system  

Science Conference Proceedings (OSTI)

This study focuses on the development of a real-time automatic affect recognition system. It adapts a multimodal approach, where affect information taken from two modalities are combined to arrive at an emotion label that is represented in a valence-arousal ... Keywords: dimensional labels, emotion models, multimodal, regression

Nicole Nielsen Lee; Jocelynn Cu; Merlin Teodosia Suarez

2012-09-01T23:59:59.000Z

403

HEART SMART NUTRITION What Affects Your Cholesterol Levels?  

E-Print Network (OSTI)

Lesson 2 HEART SMART NUTRITION What Affects Your Cholesterol Levels? Several things affect cholesterol level, thus reducing your risk of heart disease. Weight ~ Being overweight tends to increase your cholesterol and is a risk factor for heart disease. Lose weight to help lower low density lipoproteins

404

Size, effect of flexible proof mass on the mechanical behavior of micron-scale cantilevers for energy harvesting appications.  

Science Conference Proceedings (OSTI)

Mechanical behavior of micron-scale cantilevers with a distributed, flexible proof mass is investigated to understand proof mass size effects on the performance of microelectromechanical system energy harvesters. Single-crystal silicon beams with proof masses of various lengths were fabricated using focused ion beam milling and tested using atomic force microscopy. Comparison of three different modeling results with measured data reveals that a 'two-beam' method has the most accurate predictive capability in terms of both resonant frequency and strain. Accurate strain prediction is essential because energy harvested scales with strain squared and maximum strain will be a design limit in fatigue.

Kim, M.; Hong, S.; Miller, D. J.; Dugundji, J.; Wardle, B. L. (Materials Science Division); (MIT)

2011-12-15T23:59:59.000Z

405

APFBC Repowering Evaluations at the Sheldon and Greenidge Steam Stations Show the Flexibility of APFBC Technology in Different Applications  

E-Print Network (OSTI)

Advanced circulating pressurized fluidized-bed combustion combined cycle (APFBC) technology is a coal-fired technology now under test in large-scale demonstrations. As these tests progress, coalfired APFBC should become ready for commercial repowering installations around year 2005, making this an appropriate time to begin investigating commercial feasibility. This paper describes a conceptual design evaluation effort that assessed the merits of APFBC repowering at two different coal-fired steam generating stations. The paper shows that APFBC combined cycles have a number of features that make it a more flexible plant repowering option, since unlike natural gas repowering, APFBC combined cycles easily match existing superheat and reheat steam conditions.

Kevin A. Largis; Richard E. Weinstein; Douglas J. Roll; Power Gen International; Robert W. Travers

1999-01-01T23:59:59.000Z

406

Blocked and recovered memories of affective, distinctive, and neutral paragraphs  

E-Print Network (OSTI)

Highly affective memories have been thought to be longer lasting and more detailed than other memories, and many experimental results have supported this assertion. The apparent robustness of these memories, however, may result from their high distinctiveness, rather than their emotional content. Two experiments tested free and cued recall for negative affect, distinctive, and neutral paragraphs. Experiment 1 compared neutral and negative affect paragraphs using a blocked and recovered memory technique. Affective paragraphs were remembered significantly better than neutral paragraphs in free recall of paragraph titles, regardless of condition. Details of neutral paragraphs were remembered significantly better than affective paragraphs, regardless of condition. No recovery effect was found. Experiment 2 compared distinctive and neutral paragraphs using the same technique. Free recall of paragraph titles did not differ between paragraph types. Neutral paragraphs were remembered better than distinctive paragraphs in cued recall, regardless of condition. Participants remembered significantly more with cued recall, and significantly more in the forget condition, and distinctive paragraphs were subject to a much greater forgetting effect than neutral paragraphs. It is unclear why a robust forgetting effect, using these stimuli, was not found. Consistent with previous literature, affective stimuli were remembered well, but inconsistently, distinctive stimuli were not. These results provide support for the claim that negative affect memories are more robust than other memories. This may result from their inherent emotional content as opposed to their being distinctive in some way.

Corbisier, Barbara Lynn

2007-05-01T23:59:59.000Z

407

Striatal dopamine influences the default mode network to affect shifting between object features  

Science Conference Proceedings (OSTI)

Cognitive flexibility or the ability to change behavior in response to external cues is conceptualized as two processes: one for shifting between perceptual features of objects and another for shifting between the abstract rules governing the selection ...

Linh C. Dang; Aneesh Donde; Cindee Madison; James P. O'Neil; William J. Jagust

2012-09-01T23:59:59.000Z

408

Regulation of Dams and Bridges Affecting Navigable Waters (Wisconsin) |  

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

Dams and Bridges Affecting Navigable Waters Dams and Bridges Affecting Navigable Waters (Wisconsin) Regulation of Dams and Bridges Affecting Navigable Waters (Wisconsin) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Water Buying & Making Electricity Home Weatherization Program Info Start Date 2007 State Wisconsin Program Type Siting and Permitting Provider Department of Natural Resources Chapter 31 of the Wisconsin Statutes lays out the regulations relevant to

409

Work Affecting Public Waters (Minnesota) | Department of Energy  

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

Work Affecting Public Waters (Minnesota) Work Affecting Public Waters (Minnesota) Work Affecting Public Waters (Minnesota) < Back Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Residential Installer/Contractor Rural Electric Cooperative Tribal Government Low-Income Residential Schools Retail Supplier Institutional Multi-Family Residential Systems Integrator Fuel Distributor Nonprofit General Public/Consumer Transportation Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Minnesota Program Type Siting and Permitting Earlier sections of chapter 103G describe the process of delineating public

410

How Has Saving Energy Affected Your Health? | Department of Energy  

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

Has Saving Energy Affected Your Health? Has Saving Energy Affected Your Health? How Has Saving Energy Affected Your Health? February 4, 2010 - 6:30am Addthis We don't often speak of it in these terms, but saving energy can sometimes have a positive influence on your health. Maybe you're getting more exercise because you bike to work instead of drive, or you're getting more fresh air while jogging outside instead of on the treadmill (not to mention vitamin D!). Maybe you're eating more raw fruits and vegetables instead of turning on the oven to bake a pizza or driving for fast food. Tell us your story. How has saving energy affected your health? Each Thursday, you have the chance to share your thoughts on a question about energy efficiency or renewable energy for consumers. E-mail your responses to the Energy Saver team at consumer.webmaster@nrel.gov.

411

How Has Saving Energy Affected Your Health? | Department of Energy  

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

How Has Saving Energy Affected Your Health? How Has Saving Energy Affected Your Health? How Has Saving Energy Affected Your Health? February 4, 2010 - 6:30am Addthis We don't often speak of it in these terms, but saving energy can sometimes have a positive influence on your health. Maybe you're getting more exercise because you bike to work instead of drive, or you're getting more fresh air while jogging outside instead of on the treadmill (not to mention vitamin D!). Maybe you're eating more raw fruits and vegetables instead of turning on the oven to bake a pizza or driving for fast food. Tell us your story. How has saving energy affected your health? Each Thursday, you have the chance to share your thoughts on a question about energy efficiency or renewable energy for consumers. E-mail your responses to the Energy Saver team at consumer.webmaster@nrel.gov.

412

Who's Your Agent? Quantifying Energy Affected by the Principal...  

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

Who's Your Agent? Quantifying Energy Affected by the Principal-Agent Barrier in U.S. Households Speaker(s): Jayant Sathaye Date: May 9, 2006 - 12:00pm Location: Bldg. 90 This...

413

Similarity measures for spectral discrimination of salt-affected soils  

Science Conference Proceedings (OSTI)

This paper illustrates a pilot study designed to examine the spectral response of soils due to salt variations. The aim of the study includes determining whether salt-affected soils can be discriminated based on their spectral characteristics, by establishing ...

J. Farifteh; F. van der Meer; E. J. M. Carranza

2007-11-01T23:59:59.000Z

414

When Does Information Asymmetry Affect the Cost of Capital?  

E-Print Network (OSTI)

This paper examines when information asymmetry among investors affects the cost of capital in excess of standard risk factors. When equity markets are perfectly competitive, information asymmetry has no separate effect on ...

Armstrong, Christopher S.

415

Emotion, response & recommendation The role of affect in children's book  

E-Print Network (OSTI)

Emotion, response & recommendation The role of affect in children's book reviews in a digital, interpretations, and evaluations of the literature. Book reviewing Peer recommendations Preferences Sense;ZZZFKLOGUHQVOLEUDU\\RUJZZZFKLOGUHQVOLEUDU\\RUJZZZFKLOGUHQVOLEUDU\\RUJZZZFKLOGUHQVOLEUDU\\RUJMethodology Book review forms

Golbeck, Jennifer

416

Paducah DUF6 Conversion Final EIS - Chapter 3: Affected Environment...  

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

conversion facility at the Paducah site for conversion of the Paducah DUF 6 cylinder inventory. Section 3.1 presents a detailed description of the affected environment for the...

417

Eliciting and detecting affect in covert and ethically sensitive situations  

E-Print Network (OSTI)

There is growing interest in creating systems that can sense the affective state of a user for a variety of applications. As a result, a large number of studies have been conducted with the goals of eliciting specific ...

Davis, Philip Charles

2005-01-01T23:59:59.000Z

418

The aMotion toolkit: painting with affective motion textures  

Science Conference Proceedings (OSTI)

Visual artists and designers frequently use carefully crafted motion textures -- patterns of ambient motion throughout a scene -- to imbue the atmosphere with affect. The design of such ambient visual cues is an elusive topic that has been studied by ...

Matt Lockyer; Lyn Bartram

2012-06-01T23:59:59.000Z

419

Comparative costs of flexible package cells and rigid cells for lithium-ionhybrid electric vehicle batteries.  

DOE Green Energy (OSTI)

We conducted a design study to compare the manufacturing costs at a level of 100,000 hybrid vehicle batteries per year for flexible package (Flex) cells and for rigid aluminum container (Rigid) cells. Initially, the Rigid cells were considered to have welded closures and to be deep-drawn containers of about the same shape as the Flex cells. As the study progressed, the method of fabricating and sealing the Rigid cells was expanded to include lower cost options including double seaming and other mechanically fastened closures with polymer sealants. Both types of batteries were designed with positive electrodes containing Li(Ni{sub 1/3}Co{sub 1/3}Mn{sub 1/3})O{sub 2} and graphite negative electrodes. The use of a different combination of lithium-ion electrodes would have little effect on the difference in costs for the two types of cells. We found that 20-Ah cells could be designed with excellent performance and heat rejection capabilities for either type of cell. Many parts in the design of the Flex cells are identical or nearly identical to those of the Rigid Cell, so for these features there would be no difference in the cost of manufacturing the two types of batteries. We judged the performance, size and weight of the batteries to be sufficiently similar that the batteries would have the same value for their application. Some of the design features of the Flex cells were markedly different than those of the deep-drawn and welded Rigid cells and would result in significant cost savings. Fabrication and processing steps for which the Flex cells appear to have a cost advantage over these Rigid cells are (1) container fabrication and sealing, (2) terminal fabrication and sealing, and (3) intercell connections. The costs of providing cooling channels adjacent to the cells and for module and battery hardware appear to favor Rigid cell batteries slightly. Overall, Flex cell batteries appear to have an advantage of about $1.20-$3.70 per cell for a 25-kW Battery of 20 cells or about $24 to $74 per battery. Container experts assisted with this study, including a paid consultant and personnel at container manufacturing companies. Some of the companies are considering entering the business of manufacturing containers for hybrid vehicle battery manufacturers. For this reason they provided valuable guidance on overall approaches to reducing the costs of the cell containers. They have retained the description of some specific designs and procedures for future possible work with battery manufacturers, with whom they are now in contact. Through the guidance of these experts, we determined that a new type of container could be manufactured that would have the best features of performance and low cost of both the Rigid and Flex containers. For instance, the aluminum layer in a tri-layer sheet can be sufficiently thick to form a rigid container that can be fabricated in two halves, much like a Flex container, and mechanically joined at the edges for strength. In addition to the mechanical joint, this container can be sealed at the edges, much like a Flex container, by means of an inner polymer liner that can be heat-sealed or ultrasonically welded. The terminals can be flat strips of metal sealed into the top of the container as part of the edge sealing of the container, as for the Flex cell. Ridges can be stamped into one side of the container to provide cooling channels and the exterior layer of the container stock can be coated with a thin, electrically insulating, polymer layer. We expect this type of container will provide excellent sealing and durability and be less expensive than either the Flex or the Rigid container, which the study initially considered. A major cost for the original Rigid container is the welding required for sealing the container. However, the welding of the current collector tabs to the terminal piece may be even more complex and costly than welding the container. It is important, therefore, to develop an inexpensive procedure for attachment of the foils to the terminal pieces. A lower-cost procedure, such as

Nelson, P. A.; Jansen, A. N.

2006-11-28T23:59:59.000Z

420

Summary of Major Energy Bill Provisions Affecting Federal Energy Managers  

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

of Major Energy Bill Provisions Affecting Federal Energy Managers of Major Energy Bill Provisions Affecting Federal Energy Managers Section Lead Agency Provisions 102. Energy management goals DOE * Annual energy reduction goal of 2% from FY 2006 - FY 2015 * Reporting baseline changed from 1985 to 2003 * In 180 days, DOE issues guidelines * Retention of energy and water savings by agencies * DOE reports annually on progress to the President and Congress

Note: This page contains sample records for the topic "flexibility primarily affects" 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

Summary of Major Energy Bill Provisions Affecting Federal Energy Managers  

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

of Major Energy Bill Provisions Affecting Federal Energy Managers of Major Energy Bill Provisions Affecting Federal Energy Managers Section Lead Agency Provisions 102. Energy management goals DOE * Annual energy reduction goal of 2% from FY 2006 - FY 2015 * Reporting baseline changed from 1985 to 2003 * In 180 days, DOE issues guidelines * Retention of energy and water savings by agencies * DOE reports annually on progress to the President and Congress

422

MICROSTRUCTURAL FEATURES AFFECTING PROPERTIES AND AGING OF TRITIUM-EXPOSED AUSTENTIC STAINLESS STEEL  

DOE Green Energy (OSTI)

A project to implement a life-cycle engineering approach to tritium reservoirs has been initiated through the DOE - Technology Investment Projects. The first task in the project was to develop a comprehensive list of microstructural features that impact the aging performance of the tritium reservoirs. Each of the participating sites (SRNL, SNL, LANL, KCP) independently developed a list of features deemed integral to tritium reservoir performance based upon operational and design experience. An integrated list of features was ultimately developed by the project team that could be included in the modeling process. The features of interest were chosen based upon their impact on the following key factors in controlling crack growth: (1) the H/He solubility or diffusivity within the materials, (2) the stress/strain state at the crack tip, (3) material threshold for crack extension, and (4) microstructure based fracture distance, commonly estimated by grain size for intergranular fracture. Wherever possible, key references were identified to substantiate the effects on the tritium embrittlement phenomenon of the various microstructural features. Each of these features was chosen based upon their impact to the cracking phenomenon of interest. The features chosen were typically associated with orientation, morphology, and distribution of phases and inclusions, grain and grain boundary characteristics, and initial mechanical properties. Phase and inclusion content and distribution were determined to play a key role in the cracking phenomenon. The presence of {delta}-ferrite in the weld and strain-induced martensite in the primarily austenitic matrix are known to facilitate hydrogen diffusion and the interfaces have been observed as a hydrogen assisted fracture path. The morphology, size, and distribution of inclusions and precipitates, particularly on the grain boundaries, influence cracking since they trap hydrogen and facilitate intergranular fracture. Compositional banding and nitrogen concentration were also included as features of interest. The microstructural features of interest included (1) grain size, shape, and orientation; (2) dislocation structure and distribution, or recovered vs. un-recovered. The grain size and orientation affect the grain boundary fracture stress and the hydrogen solubility and diffusion paths. The dislocation structure and distribution play a role in hydrogen trapping as well as potentially affecting the hydrogen assisted fracture path. The initial mechanical and physical properties that are to be included in the investigation are yield stress, fracture toughness, work-hardening capacity, threshold hydrogen cracking stress intensity and stacking-fault energy.

Subramanian, K; Michael Morgan, M

2004-01-10T23:59:59.000Z

423

Microsoft Word - 41776_GE_Fuel Flexible Combustion_Factsheet_Rev01_10-03-03.doc  

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

FACTS SHEET FACTS SHEET Fuel Flexible Combustion for Coproduction Plant Applications I.) Project Participants: Prime Participant: General Electric Sub-award Participant: Georgia Tec II.) Project Description: A. Objective: Develop a multi-fuel low emission combustor for Vision 21 plant and gas turbine system applications. Combustion system development includes the development of combustion modeling tools for low Btu fuel compositions. The combustion system is targeted at Vision 21 coproduction plant operating conditions & fuels. A system model of the proposed Vision 21 plant design will be constructed to predict overall plant efficiencies. B. Background/Relevancy: A primary goal of the Vision 21 program is the development of high-efficiency, low-emission energy plants (Vision 21 plants) that produce electric

424

http://www.sussex.ac.uk/spru / Constructing Success in the Electric Power Industry: Flexibility and the Gas Turbine  

E-Print Network (OSTI)

This paper explains the success and failure of two technologies that generate electricity from fossil fuels. Both the Combined Cycle Gas Turbine (CCGT) and fluidised bed boiler burn fossil fuels more cleanly than more traditional technologies. Whereas the CCGT has been used for an increasing number of new power plants during the past fifteen years, the latter has struggled to attract attention outside a small-scale niche. The paper draws on economic and social constructivist approaches to technical change. It shows how a combination of economic, institutional and political factors can be used to explain success and failure. It also demonstrates the importance of technological flexibility for the long term development of the CCGT and its acceptance as the power industrys current technology of choice.

Dr Jim Watson; Mantell Building

2001-01-01T23:59:59.000Z

425

Analysis of operations and cyber security policies for a system of cooperating Flexible Alternating Current Transmission System (FACTS) devices.  

SciTech Connect

Flexible Alternating Current Transmission Systems (FACTS) devices are installed on electric power transmission lines to stabilize and regulate power flow. Power lines protected by FACTS devices can increase power flow and better respond to contingencies. The University of Missouri Rolla (UMR) is currently working on a multi-year project to examine the potential use of multiple FACTS devices distributed over a large power system region in a cooperative arrangement in which the FACTS devices work together to optimize and stabilize the regional power system. The report describes operational and security challenges that need to be addressed to employ FACTS devices in this way and recommends references, processes, technologies, and policies to address these challenges.

Phillips, Laurence R.; Tejani, Bankim; Margulies, Jonathan; Hills, Jason L.; Richardson, Bryan T.; Baca, Micheal J.; Weiland, Laura

2005-12-01T23:59:59.000Z

426

A Functional Description of CymA, an Electron Transfer Hub Supporting Anaerobic Respiratory Flexibility in Shewanella  

SciTech Connect

CymA is a member of the NapC/NirT family of quinol dehydrogenases. Essential for the anaerobic respiratory flexibility of shewanellae, CymA transfers electrons from menaquinol to various dedicated systems for the reduction of terminal electron acceptors including fumarate and insoluble minerals of Fe(III). Spectroscopic characterization of CymA from Shewanella oneidensis MR-1 identifies three low-spin His/His coordinated c-hemes and a single high-spin c-heme with His/H{sub 2}O coordination lying adjacent to the quinol binding site. At pH 7, binding of the menaquinol analogue, 2-heptyl-4-hydroxyquinoline-N-oxide, does not alter the mid-point potentials of the high-spin (ca. {approx}240 mV) and low-spin (ca. {approx}110, {approx}190 and {approx}265 mV) hemes that appear biased to transfer electrons from the high- to low-spin centres following quinol oxidation. CymA is reduced with menadiol (E{sub m} = {approx} 80 mV) in the presence of NADH (E{sub m} = {approx} 320 mV) and an NADH:menadione oxidoreductase, but not by menadiol alone. In cytoplasmic membranes reduction of CymA may then require the thermodynamic driving force from NADH, formate or H{sub 2} oxidation as the redox poise of the menaquinol pool in isolation is insufficient. Spectroscopic studies suggest that CymA requires a nonheme cofactor for quinol oxidation and that the reduced enzyme forms a 1:1 complex with its redox partner Fcc{sub 3}. The implications for CymA supporting the respiratory flexibility of shewanellae are discussed.

Marritt, Sophie; Lowe, Thomas G.; Bye, Jordan; McMillan, Duncan G.; Shi, Liang; Fredrickson, Jim K.; Zachara, John M.; Richardson, David J.; Cheesman, Myles R.; Jeuken, Lars J.; Butt, Julea N.

2012-06-15T23:59:59.000Z

427

Assess Site Factors That Affect Employee Commuting Options for Greenhouse  

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

Assess Site Factors That Affect Employee Commuting Options for Assess Site Factors That Affect Employee Commuting Options for Greenhouse Gas Profile Assess Site Factors That Affect Employee Commuting Options for Greenhouse Gas Profile October 7, 2013 - 1:52pm Addthis YOU ARE HERE: Step 2 After establishing an employee commuting behavior baseline for evaluating a greenhouse gas (GHG) profile, analyze the specific characteristics of the agency's major worksites to help determine which alternative commute methods and work arrangements are viable and what types of strategies may be most effective for promoting those alternatives. It is recommended that worksite-level data collection focus on worksites with the: Largest number of employees, or clusters of worksites with large employee populations in an area with diverse commuting infrastructure

428

Portsmouth DUF6 Conversion Final EIS - Chapter 3: Affected Environment  

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

Portsmouth DUF Portsmouth DUF 6 Conversion Final EIS 3 AFFECTED ENVIRONMENT This EIS considers the proposed action of building and operating a conversion facility at the Portsmouth site for conversion of the Portsmouth and ETTP DUF 6 cylinder inventories. Section 3.1 presents a detailed description of the affected environment for the Portsmouth site. Because the option of shipping cylinders from the ETTP site in Oak Ridge, Tennessee, to the Portsmouth site for conversion is part of the proposed action, a detailed description of the affected environment for the ETTP site is provided in Section 3.2. 3.1 PORTSMOUTH SITE The Portsmouth site is located in Pike County, Ohio, approximately 22 mi (35 km) north of the Ohio River and 3 mi (5 km) southeast of the town of Piketon (Figure 3.1-1). The two

429

Analysis Of Factors Affecting Natural Source Slf Electromagnetic  

Open Energy Info (EERE)

Factors Affecting Natural Source Slf Electromagnetic Factors Affecting Natural Source Slf Electromagnetic Exploration At Geothermal Wells Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Analysis Of Factors Affecting Natural Source Slf Electromagnetic Exploration At Geothermal Wells Details Activities (0) Areas (0) Regions (0) Abstract: The Super Low Frequency (SLF) electromagnetic exploration was performed by using a nature source SLF electromagnetic detector at two geothermal wells in Peking University. The data of the SLF electromagnetic exploration at well JR-119 and JR-168 were obtained with the observation of continued five days and four times per day at well JR-119 and of one day at well JR-168. Based on these data, the influencing factors of the SI-F electromagnetic exploration were analyzed, which included the relationship

430

Factors Affecting Zebra Mussel Kill by the Bacterium Pseudomonas fluorescens  

SciTech Connect

The specific purpose of this research project was to identify factors that affect zebra mussel kill by the bacterium Pseudomonas fluorescens. Test results obtained during this three-year project identified the following key variables as affecting mussel kill: treatment concentration, treatment duration, mussel siphoning activity, dissolved oxygen concentration, water temperature, and naturally suspended particle load. Using this latter information, the project culminated in a series of pipe tests which achieved high mussel kill inside power plants under once-through conditions using service water in artificial pipes.

Daniel P. Molloy

2004-02-24T23:59:59.000Z

431

Factors Affecting KM Implementation in the Chinese Community  

Science Conference Proceedings (OSTI)

This paper reviews past research on KM to identify key factors affecting Chinese KM implementation. It begins with a chronological overview of 76 KM related publications, followed by two separate discussions of socio-cultural and non-socio-cultural factors ... Keywords: China, Chinese, KM Implementation, Knowledge Management

Yang Lin; Kimiz Dalkir

2010-01-01T23:59:59.000Z

432

Research Report Chronic morphine exposure affects the visual response properties  

E-Print Network (OSTI)

and Technology of China, Hefei, Anhui 230027, P.R. China b State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Science, Beijing 100101, P.R. China Accepted 18 August 2005-like drugs decreased visual sensitivity in humans [41], and affected visual discrimination performance

Zhou, Yi-Feng

433

Designing robotic avatars: are user's impression affected by avatar's age?  

Science Conference Proceedings (OSTI)

This paper explores the relationship between the aging cue of a robotic avatar and the level of intelligence and safety perceived by the elderly as users. This initial study found that the avatar aging cue indeed, affects the elderly in their perception ... Keywords: aging cue, avatar, elderly, embodied agent, interfaces, robotics, user experience

Angie Lorena Marin Mejia; Doori Jo; Sukhan Lee

2013-03-01T23:59:59.000Z

434

A Characterization of Cirrus Cloud Properties That Affect Laser Propagation  

Science Conference Proceedings (OSTI)

Future high-altitude laser systems may be affected by cirrus clouds. Laser transmission models were applied to measured and retrieved cirrus properties to determine cirrus impact on power incident on a target or receiver. A major goal was to see ...

Donald C. Norquist; Paul R. Desrochers; Patrick J. McNicholl; John R. Roadcap

2008-05-01T23:59:59.000Z

435

Architectures of flexible symmetric key crypto enginesa survey: From hardware coprocessor to multi-crypto-processor system on chip  

Science Conference Proceedings (OSTI)

Throughput, flexibility, and security form the design trilogy of reconfigurable crypto engines; they must be carefully considered without reducing the major role of classical design constraints, such as surface, power consumption, dependability, and ... Keywords: Cryptosystems, crypto MPSoC, crypto array, crypto coprocessor, crypto processor, reconfigurable architecture

Lilian Bossuet, Michael Grand, Lubos Gaspar, Viktor Fischer, Guy Gogniat

2013-08-01T23:59:59.000Z

436

Performance oriented packaging testing of the six-foot flexible linear shaped charge box for packing group II hazardous materials. Final report  

SciTech Connect

The wood box (Drawing 53711-6665109) for six-foot flexible linear shaped charges was tested for conformance to Performance Oriented Packaging standards specified by the Code of Federal Regulations, Title 49 CFR, Parts 107 through 178, dated 31 December 1991. The box was tested with a gross weight of 14 kilograms and met all the requirements.

Libbert, K.J.

1992-10-01T23:59:59.000Z

437

To Cope with the Uncertainity in Smart Energy Systems: Office Buildings as a Source for Energy Flexibility  

E-Print Network (OSTI)

Electricity energy generation and its supply through electricity networks is mainly organized in a top-down, centralized manner. Energy consumption can be predicted quite accurately at a high level, and this forms the basis for pre-scheduling the production by large power plants. Only few actors are involved in the generation, trade, and transportation of electricity, but this is changing rapidly. Renewable energy conversion (such as wind and solar energy, geothermal energy or as supplied by biomass systems at farms) will lead to a large amount of distributed and fluctuating (small) renewable energy sources throughout the grid, at homes, farms, and companies. The need of centralized electricity generation thus becomes more difficult to plan. This can lead to large problems and unstable electricity grids and therefore we have to develop approaches to deal with this increasing uncertainty. The use of Information and Communication Technology (ICT) and Control Technology (CT) will provide us many options for stabilizing electricity networks. Besides this also on the demand side new consumers such as electric vehicles and heat pumps (with large demand but also high flexibility or storage capacity) appear. The increasing share of decentralized renewable energy conservation in combination with the new types of consumers will drastically alter the operation of electricity systems. Smart Grids are developed by all major electricity distribution companies together with industry to cope with the dispersed electricity production by matching of supply and demand by smart ICT and CT. The future stricter sustainability demands will lead to offices with their own renewable energy sources and energy storage capacity. Office buildings will become a potential source of energy flexibility which can be offered to the grid as a Virtual Power Plant (VPP). In order to minimize uncertainty in the balance between energy supply and demand it is necessary to develop realistic user behavior, installations behavior and Smart Grid interaction. Monitoring the needs and preferences of users is necessary to predict future states of the demand for the SES (e.g. based on weather forecasts and user behavior). Automated prosumer support is needed to optimize interaction between offices and Smart grid.

Zieler, W.; Aduda, K.; Boxem, G.

2013-01-01T23:59:59.000Z

438

Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation  

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

Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation Print Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation Print Understanding charge-transfer processes at the atomic level of nanoscale systems is of the utmost importance for designing nanodevices based on quantum-dot structures, nanotubes, or two-dimensional graphene sheets. Researchers from Western Michigan University, Berkeley Lab, and other international research facilities investigated charge-transfer processes and subsequent ion fragmentation dynamics in nanoclusters composed of argon (Ar) shells and xenon (Xe) cores. The clusters were site-selectively ionized (i.e, ionization took place either in the xenon core or in the argon shell). Using a high-resolution photoelectron-ion coincidence technique at ALS Beamlines 10.0.1 and 11.0.2, the researchers concluded that charge-transfer processes and fragmentation dynamics are strongly influenced by the environment of the initially ionized atoms.

439

TSPA Model Development and Sensitivity Analysis of Processes Affecting  

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

TSPA Model Development and Sensitivity Analysis of Processes TSPA Model Development and Sensitivity Analysis of Processes Affecting Performance of a Salt Repository for Disposal of Heat-Generating Nuclear Waste TSPA Model Development and Sensitivity Analysis of Processes Affecting Performance of a Salt Repository for Disposal of Heat-Generating Nuclear Waste The document describes the initial work on designing and developing requirements for a total system performance assessment (TSPA) model that can support preliminary safety assessments for a mined geologic repository for high-level waste (HLW) and spent nuclear fuel (SNF) in salt host rock at a generic site. A preliminary generic salt TSPA model for HLW/SNF disposal has been developed and tested for an isothermal repository in salt, for emplaced waste that is assumed to have no decay heat; for salt

440

Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation  

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

Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation Print Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation Print Understanding charge-transfer processes at the atomic level of nanoscale systems is of the utmost importance for designing nanodevices based on quantum-dot structures, nanotubes, or two-dimensional graphene sheets. Researchers from Western Michigan University, Berkeley Lab, and other international research facilities investigated charge-transfer processes and subsequent ion fragmentation dynamics in nanoclusters composed of argon (Ar) shells and xenon (Xe) cores. The clusters were site-selectively ionized (i.e, ionization took place either in the xenon core or in the argon shell). Using a high-resolution photoelectron-ion coincidence technique at ALS Beamlines 10.0.1 and 11.0.2, the researchers concluded that charge-transfer processes and fragmentation dynamics are strongly influenced by the environment of the initially ionized atoms.

Note: This page contains sample records for the topic "flexibility primarily affects" 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.


441

Low Dose Radiation Research Program: Genetic Factors Affecting  

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

Affecting Susceptibility to Low-Dose Radiation Affecting Susceptibility to Low-Dose Radiation William F. Morgan Pacific Northwest National Laboratory Why This Project The short-term effects of high doses of ionizing radiation on cellular responses are relatively well understood. Less clear are the long-term consequences of exposure to low dose/low dose-rate radiation and the effects of radiation exposure on the progeny of surviving cells. If a cell survives radiation, it is generally thought to have repaired all the radiation-induced insults and be capable of a "normal healthy life". At a certain frequency, however, we have found that some cells surviving radiation grow normally, but will rearrange their genetic material during time in culture. We call this radiation-induced genomic instability. Many

442

Low Dose Radiation Research Program: Genetic Factors Affecting  

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

Genetic Factors Affecting Susceptibility to Low-Doses of Ionizing Genetic Factors Affecting Susceptibility to Low-Doses of Ionizing Radiation. Authors: William F. Morgan, Pat Concannon & John H.J. Petrini The goal of this program is to test the hypothesis that mice heterozygous for the NBS1 gene are genetically susceptible to low doses of ionizing radiation. Patients with Nijmegen Breakage Syndrome (NBS) are radiation sensitive, because of defects in cellular responses to radiation induced genetic damage. It is unclear whether humans heterozygous for the mutations associated with NBS are radiation sensitive and results from cell culture experiments give conflicting results. In collaboration with John Petrini at the Memorial Sloan Kettering Cancer Center in New York City we developed a mouse model of this disorder and are directly testing the hypothesis

443

Factors affecting quality of dried low-rank coals  

SciTech Connect

The chemical and physical properties of coal are strongly affected by the upgrading process employed. For high-moisture coals, upgrading involves thermal dehydration to improve the calorific value of the coal on mass basis. This study evaluates the feasibility of upgrading a low-rank/grade coal using the oven drying method. The objective of this research work is to study the drying characteristics of low-rank coals and to understand the factors affecting the quality of dried low-rank coals. This article describes laboratory experiments conducted on the characterization of the low-rank coals before and after the drying process. The results on drying kinetics, re-absorption of coal samples, and proximate analysis of coal samples before and after drying are discussed. It was found that the upgrading process produced coal with better heating value and combustion characteristics than those of the raw coal samples.

Karthikeyan, M.; Kuma, J.V.M.; Hoe, C.S.; Ngo, D.L.Y. [National University of Singapore, (Singapore)

2007-07-01T23:59:59.000Z

444

Legal factors affecting the financing of small scale hydroelectric projects  

DOE Green Energy (OSTI)

An introduction to the major business organizational options open to small-scale hydroelectric (SSH) projects is given. The major federal income tax treatments of these options are compared. Significant general federal income tax factors affecting SSH projects are reintroduced and explained. Some of the special federal income tax problem areas in SSH development are isolated. Tax benefit flow through or transfer mechanisms are discussed. Tax exempt financing opportunities for private SSH projects are reviewed. (MHR)

Wilson, W.H.; Ringo, M.J.; Forgione, N.

1983-09-01T23:59:59.000Z

445

Cost and Reliability Improvement for CIGS-Based PV on Flexible Substrate: May 24, 2006 -- July 31, 2010  

SciTech Connect

Global Solar Energy rapidly advances the cost and performance of commercial thin-film CIGS products using roll-to-roll processing on steel foil substrate in compact, low cost deposition equipment, with in-situ sensors for real-time intelligent process control. Substantial increases in power module efficiency, which now exceed 13%, are evident at GSE factories in two countries with a combined capacity greater than 75 MW. During 2009 the average efficiency of cell strings (3780 cm2) was increased from 7% to over 11%, with champion results exceeding 13% Continued testing of module reliability in rigid product has reaffirmed extended life expectancy for standard glass product, and has qualified additional lower-cost methods and materials. Expected lifetime for PV in flexible packages continues to increase as failure mechanisms are elucidated, and resolved by better methods and materials. Cost reduction has been achieved through better materials utilization, enhanced vendor and material qualification and selection. The largest cost gains have come as a result of higher cell conversion efficiency and yields, higher processing rates, greater automation and improved control in all process steps. These improvements are integral to this thin film PV partnership program, and all realized with the 'Gen2' manufacturing plants, processes and equipment.

Wiedeman, S.

2011-05-01T23:59:59.000Z

446

How Does Law Affect Finance? An Examination of Financial Tunneling in an Emerging Market  

E-Print Network (OSTI)

How Does Law Affect Finance? An Examination of FinancialWilliam Davidson Institute. How Does Law Affect Finance? Anfinancial tunneling, Prior work does not distinguish between

Black, Bernard; Atanasov, Vladimir; Ciccotello, Conrad S.; Gyoshev, Stanley B.

2007-01-01T23:59:59.000Z

447

How Run-of-River Operation Affects Hydropower Generation Henriette I. Jager Mark S. Bevelhimer  

E-Print Network (OSTI)

aquatic biota? 2. Did annual power generation decrease as a result of relicensing? 3. Did the proportion of higher-valued power generated during peak demand decrease because of relicensing? Flexibility requirements that constrain seasonal and diurnal shifting of flow can influence power generation by requiring

Jager, Henriette I.

448

CONFIRMING THE PRIMARILY SMOOTH STRUCTURE OF THE VEGA DEBRIS DISK AT MILLIMETER WAVELENGTHS  

SciTech Connect

Clumpy structure in the debris disk around Vega has been previously reported at millimeter wavelengths and attributed to concentrations of dust grains trapped in resonances with an unseen planet. However, recent imaging at similar wavelengths with higher sensitivity has disputed the observed structure. We present three new millimeter-wavelength observations that help to resolve the puzzling and contradictory observations. We have observed the Vega system with the Submillimeter Array (SMA) at a wavelength of 880 {mu}m and an angular resolution of 5''; with the Combined Array for Research in Millimeter-wave Astronomy (CARMA) at a wavelength of 1.3 mm and an angular resolution of 5''; and with the Green Bank Telescope (GBT) at a wavelength of 3.3 mm and angular resolution of 10''. Despite high sensitivity and short baselines, we do not detect the Vega debris disk in either of the interferometric data sets (SMA and CARMA), which should be sensitive at high significance to clumpy structure based on previously reported observations. We obtain a marginal (3{sigma}) detection of disk emission in the GBT data; the spatial distribution of the emission is not well constrained. We analyze the observations in the context of several different models, demonstrating that the observations are consistent with a smooth, broad, axisymmetric disk with inner radius 20-100 AU and width {approx}> 50 AU. The interferometric data require that at least half of the 860 {mu}m emission detected by previous single-dish observations with the James Clerk Maxwell Telescope be distributed axisymmetrically, ruling out strong contributions from flux concentrations on spatial scales of {approx}<100 AU. These observations support recent results from the Plateau de Bure Interferometer indicating that previous detections of clumpy structure in the Vega debris disk were spurious.

Hughes, A. Meredith; Plambeck, Richard; Chiang, Eugene [Department of Astronomy, University of California, Berkeley, CA 94720 (United States); Wilner, David J.; Andrews, Sean M. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Mason, Brian [National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903-2475 (United States); Carpenter, John M. [California Institute of Technology, Department of Astronomy, MC 105-24, Pasadena, CA 91125 (United States); Chiang, Hsin-Fang [Institute for Astronomy, University of Hawaii, 640 North Aohoku Place, Hilo, HI 96720 (United States); Williams, Jonathan P. [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822 (United States); Hales, Antonio [Joint ALMA Observatory, Av. El Golf 40, Piso 18, Santiago (Chile); Su, Kate [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Dicker, Simon; Korngut, Phil; Devlin, Mark, E-mail: mhughes@astro.berkeley.edu [Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104 (United States)

2012-05-01T23:59:59.000Z

449

The presence of natural gas-primarily methane-in the shale layers...  

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

was pumped in 1947 on a gas well operated by Pan American Petroleum Corporation in Grant County, Kansas. 2003 to 2004 - Gas production from the Barnett Shale play overtakes the...

450

Using This Bulletin This bulletin is intended primarily to provide users with Penn State academic  

E-Print Network (OSTI)

Action Intensity savings Savings at electricity rate $0.07/kWh $0.10/kWh $0.13/kWh Vampire appliances Unplug all appliances not in use (assume 20W of vampire appliances) 0.48 kWh per day $0.034 $0.048 $0 hot (50°C) to cold wash using high efficiency washer (86 litres per load)iv 2.25 kWh per load $0.16 $0

Yener, Aylin

451

Utility & Regulatory Factors Affecting Cogeneration & Independent Power Plant Design & Operation  

E-Print Network (OSTI)

In specifying a cogeneration or independent power plant, the owner should be especially aware of the influences which electric utilities and regulatory bodies will have on key parameters such as size, efficiency, design, reliability/ availability, operating capabilities and modes, etc. This paper will note examples of some of the major factors which could impact the project developer and his economics, as well as discuss potential mitigation measures. Areas treated include wheeling, utility ownership interests, dispatchability, regulatory acceptance and other considerations which could significantly affect the plant definition and, as a result, its attendant business and financing structure. Finally, suggestions are also made for facilitating the process of integration with the electric utility.

Felak, R. P.

1986-06-01T23:59:59.000Z

452

Legal and regulatory issues affecting aquifer thermal energy storage  

DOE Green Energy (OSTI)

This document updates and expands the report with a similar title issued in October 1980. This document examines a number of legal and regulatory issues that potentially can affect implementation of the aquifer thermal energy storage (ATES) concept. This concept involves the storage of thermal energy in an underground aquifer until a later date when it can be effectively utilized. Either heat energy or chill can be stored. Potential end uses of the energy include district space heating and cooling, industrial process applications, and use in agriculture or aquaculture. Issues are examined in four categories: regulatory requirements, property rights, potential liability, and issues related to heat or chill delivery.

Hendrickson, P.L.

1981-10-01T23:59:59.000Z

453

High Strength Stainless Steel Properties that Affect Resistance Welding  

Science Conference Proceedings (OSTI)

This report discusses results of a study on selected high strength stainless steel alloy properties that affect resistance welding. The austenitic alloys A-286, JBK-75 (Modified A-286), 21-6-9, 22-13-5, 316 and 304L were investigated and compared. The former two are age hardenable, and the latter four obtain their strength through work hardening. Properties investigated include corrosion and its relationship to chemical cleaning, the effects of heat treatment on strength and surface condition, and the effect of mechanical properties on strength and weldability.

Kanne, W.R.

2001-08-01T23:59:59.000Z

454

Flexible Spending Accounts  

Science Conference Proceedings (OSTI)

... FSAs are basically medical savings accounts that allow you to set aside pre-tax money from your paychecks to pay for a variety of eligible expenses ...

2010-12-21T23:59:59.000Z

455

Flexible data fusion (& fission)  

Science Conference Proceedings (OSTI)

An approach is described for developing methods for "data fusion": given how events A & B occurring by themselves influence some measure, estimate the influence (on that measure) of A and B occurring together. An example is "combine the effects of evidence ...

Alexander Yeh

1985-08-01T23:59:59.000Z

456

Flexible and Transparent Memory  

E-Print Network (OSTI)

relevant to the power consumption of MEMS devices. As showndynamic power consumption in electronic switching devices. 6

KIM, SUNG MIN

2012-01-01T23:59:59.000Z

457

Fuel Flexibility in Gasification  

DOE Green Energy (OSTI)

In order to increase efficiencies of carbonizers, operation at high pressures is needed. In addition, waste biomass fuels of opportunity can be used to offset fossil fuel use. The National Energy Technology Laboratory (NETL) Fluidized Bed Gasifier/Combustor (FBG/C) was used to gasify coal and mixtures of coal and biomass (sawdust) at 425 psig. The purpose of the testing program was to generate steady state operating data for modeling efforts of carbonizers. A test program was completed with a matrix of parameters varied one at a time in order to avoid second order interactions. Variables were: coal feed rate, pressure, and varying mixtures of sawdust and coal types. Coal types were Montana Rosebud subbituminous and Pittsburgh No. 8 bituminous. The sawdust was sanding waste from a furniture manufacturer in upstate New York. Coal was sieved from -14 to +60 mesh and sawdust was sieved to -14 mesh. The FBG/C operates at a nominal 425 psig, but pressures can be lowered. For the tests reported it was operated as a jetting, fluidized bed, ash-agglomerating gasifier. Preheated air and steam are injected into the center of the bottom along with the solid feed that is conveyed with cool air. Fairly stable reactor internal flow patterns develop and temperatures stabilize (with some fluctuations) when steady state is reached. At nominal conditions the solids residence time in the reactor is on the order of 1.5 to 2 hours, so changes in feed types can require on the order of hours to equilibrate. Changes in operating conditions (e.g. feed rate) usually require much less time. The operating periods of interest for these tests were only the steady state periods, so transient conditions were not monitored as closely. The test matrix first established a base case of operations to which single parameter changes in conditions could be compared. The base case used Montana Rosebud at a coal feed rate of 70 lbm/hr at 425 psig. The coal sawdust mixtures are reported as percent by weight coal to percent by weight sawdust. The mixtures of interest were: 65/35 subbituminous, 75/25 subbituminous, 85/15 subbituminous, and 75/25 bituminous. Steady state was achieved quickly when going from one subbituminous mixture to another, but longer when going from subbituminous to bituminous coal. The most apparent observation when comparing the base case to subbituminous coal/sawdust mixtures is that operating conditions are nearly the same. Product gas does not change much in composition and temperatures remain nearly the same. Comparisons of identical weight ratios of sawdust and subbituminous and bituminous mixtures show considerable changes in operating conditions and gas composition. The highly caking bituminous coal used in this test swelled up and became about half as dense as the comparable subbituminous coal char. Some adjustments were required in accommodating changes in solids removal during the test. Nearly all the solids in the bituminous coal sawdust were conveyed into the upper freeboard section and removed at the mid-level of the reactor. This is in marked contrast to the ash-agglomerating condition where most solids are removed at the very bottom of the gasifier. Temperatures in the bottom of the reactor during the bituminous test were very high and difficult to control. The most significant discovery of the tests was that the addition of sawdust allowed gasification of a coal type that had previously resulted in nearly instant clinkering of the gasifier. Several previous attempts at using Pittsburgh No. 8 were done only at the end of the tests when shutdown was imminent anyway. It is speculated that the fine wood dust somehow coats the pyrolyzed sticky bituminous coal particles and prevents them from agglomerating quickly. As the bituminous coal char particles swell, they are carried to the cooler upper regions of the reactor where they re-solidify. Other interesting phenomena were revealed regarding the transport (rheological) properties of the coal sawdust mixtures. The coal sawdust mixtures segregate quickly when transported. This is visi

McLendon, T. Robert; Pineault, Richard L.; Richardson, Steven W.; Rockey, John M.; Beer, Stephen K. (U.S. DOE National Energy Technology Laboratory); Lui, Alain P.; Batton, William A. (Parsons Infrastructure and Technology Group, Inc.)

2001-11-06T23:59:59.000Z

458

Fuel-Flexible Gasification-Combustion Technology for Production of Hydrogen and Sequestration-Ready Carbon Dioxide  

DOE Green Energy (OSTI)

Electricity produced from hydrogen in fuel cells can be highly efficient relative to competing technologies and has the potential to be virtually pollution free. Thus, fuel cells may become an ideal solution to this nation's energy needs if one has a satisfactory process for producing hydrogen from available energy resources such as coal, and low-cost alternative feedstocks such as biomass. GE EER is developing an innovative fuel-flexible advanced gasification-combustion (AGC) technology for production of hydrogen for fuel cells or combustion turbines, and a separate stream of sequestration-ready CO2. The AGC module can be integrated into a number of Vision- 21 power systems. It offers increased energy efficiency relative to conventional gasification and combustion systems and near-zero pollution. The R&D on the AGC technology is being conducted under a Vision-21 award from the U.S. DOE NETL with co-funding from GE EER, Southern Illinois University at Carbondale (SIU-C), and the California Energy Commission (CEC). The AGC technology converts coal and air into three separate streams of pure hydrogen, sequestration-ready CO2, and high temperature/pressure oxygen-depleted air to produce electricity in a gas turbine. The three-year program integrates lab-, bench- and pilot-scale studies to demonstrate the AGC concept. Process and kinetic modeling studies as well as an economic assessment will also be performed. This paper provides an overview of the program and its objectives, and discusses first-year R&D activities, including design of experimental facilities and results from initial tests and modeling studies. In particular, the paper describes the design of the bench-scale facility and initial process modeling data. In addition, a process flow diagram is shown for a complete plant incorporating the AGC module with other Vision-21 plant components to maximize hydrogen production and process efficiency.

Rizeq, George; West, Janice; Frydman, Arnaldo; Subia, Raul; Kumar, Ravi; Zamansky, Vladimir (GE Energy and Environmental Research Corporation); Das, Kamalendu (U.S. DOE National Energy Technology Laboratory)

2001-11-06T23:59:59.000Z

459

Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation  

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

Site-Selective Ionization in Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation Print Wednesday, 30 June 2010 00:00 Understanding charge-transfer processes at the atomic level of nanoscale systems is of the utmost importance for designing nanodevices based on quantum-dot structures, nanotubes, or two-dimensional graphene sheets. Researchers from Western Michigan University, Berkeley Lab, and other international research facilities investigated charge-transfer processes and subsequent ion fragmentation dynamics in nanoclusters composed of argon (Ar) shells and xenon (Xe) cores. The clusters were site-selectively ionized (i.e, ionization took place either in the xenon core or in the argon shell). Using a high-resolution photoelectron-ion coincidence technique at ALS Beamlines 10.0.1 and 11.0.2, the researchers concluded that charge-transfer processes and fragmentation dynamics are strongly influenced by the environment of the initially ionized atoms.

460

Microbial Carbon Cycling in Permafrost-Affected Soils  

Science Conference Proceedings (OSTI)

The Arctic plays a key role in Earth s climate system as global warming is predicted to be most pronounced at high latitudes and because one third of the global carbon pool is stored in ecosystems of the northern latitudes. In order to improve our understanding of the present and future carbon dynamics in climate sensitive permafrost ecosystems, present studies concentrate on investigations of microbial controls of greenhouse gas fluxes, on the activity and structure of the involved microbial communities, and on their response to changing environmental conditions. Permafrost-affected soils can function as both a source and a sink for carbon dioxide and methane. Under anaerobic conditions, caused by flooding of the active layer and the effect of backwater above the permafrost table, the mineralization of organic matter can only be realized stepwise by specialized microorganisms. Important intermediates of the organic matter decomposition are hydrogen, carbon dioxide and acetate, which can be further reduced to methane by methanogenic archaea. Evolution of methane fluxes across the subsurface/atmosphere boundary will thereby strongly depend on the activity of anaerobic methanogenic archaea and obligately aerobic methane oxidizing proteobacteria, which are known to be abundant and to significantly reduce methane emissions in permafrost-affected soils. Therefore current studies on methane-cycling microorganisms are the object of particular attention in permafrost studies, because of their key role in the Arctic methane cycle and consequently of their significance for the global methane budget.

Vishnivetskaya, T. [University of Tennessee, Knoxville (UTK); Liebner, Susanne [University of Tromso, Norway; Wilhelm, Ronald [McGill University, Montreal, Quebec; Wagner, Dirk [Alfred Wegener Institute for Polar and Marine Research, Potsdam, Germany

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "flexibility primarily affects" 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.


461

Who Will Be Affected by Welfare Reform in California?  

E-Print Network (OSTI)

sections of text, not to exceed three paragraphs, to be quoted without written permission, provided that full attribution is given to the source and the above copyright notice is included. Foreword California is about to experience the most sweeping changes in its welfare system since the 1960s. The federal government has already mandated some of the parameters of the system in the Personal Responsibility and Work Opportunity Reconciliation Act of 1996. This legislation affects more than a dozen programs. Most significantly, it eliminates Aid to Families with Dependent Children (AFDC), creating a new program known as Temporary Assistance for Needy Families (TANF). Funding for AFDC was divided equally between the state and federal governments, but federal support for TANF will come through block grants, essentially putting a cap on the federal share. TANF also includes time limits and work requirements. In spite of these restrictions, California should be able to create virtually any welfare system it wants. For example, unless the Clinton

Thomas Macurdy

1997-01-01T23:59:59.000Z

462

Factors affecting expanded electricity trade in North America  

SciTech Connect

The authors explore factors that affect electricity trade between enterprises in the US and Canada and the US and Mexico. They look to those underlying policy and institutional factors that affect the relative costs of producing electricity in the three countries. In particular, they consider six factors that appear to have a significant impact on electricity trade in North America: differences in the types of economic regulation of power leading to differences in cost recovery for wholesale and retail power and wheeling charges; changing regulatory attitudes, placing more emphasis on demand-side management and environmental concerns; differences in energy and economic policies; differences in national and subnational environmental policies; changing organization of electric power industries which may foster uncertainty, change historical relationships, and provide other potentially important sources of power for distribution utilities; and differences in the ability of enterprises to gain access to electric power markets because of restrictions placed on transmission access. In Section 2, the authors discuss the regulation of electricity trade in North America and provide an overview of the recent trading experience for electricity between Canada and the US and between Mexico and the US, including the volume of that trade over the past decade and existing transmission capacity between regions of the three countries. In Section 3, they look at the benefits that accrue to trading counties and what those benefits are likely to be for the three countries. The discussion in Section 4 centers on the relevant provisions of the Canada Free Trade Agreement and the proposed North American Free Trade Agreement. In Section 5, they set the stage for the discussion of policy and institutional differences presented in Section 6 by outlining differences in the organization of the electric power sectors of Canada, the US, and Mexico. The study is synthesized in Section 7.

Hill, L.J.

1994-01-01T23:59:59.000Z

463

FUEL-FLEXIBLE GASIFICATION-COMBUSTION TECHNOLOGY FOR PRODUCTION OF H2 AND SEQUESTRATION-READY CO2  

DOE Green Energy (OSTI)

It is expected that in the 21st century the Nation will continue to rely on fossil fuels for electricity, transportation, and chemicals. It will be necessary to improve both the process efficiency and environmental impact performance of fossil fuel utilization. GE Global Research (GEGR) has developed an innovative fuel-flexible Unmixed Fuel Processor (UFP) technology to produce H{sub 2}, power, and sequestration-ready CO{sub 2} from coal and other solid fuels. The UFP module offers the potential for reduced cost, increased process efficiency relative to conventional gasification and combustion systems, and near-zero pollutant emissions including NO{sub x}. GEGR (prime contractor) was awarded a Vision 21 program from U.S. DOE NETL to develop the UFP technology. Work on this Phase I program started on October 1, 2000. The project team includes GEGR, Southern Illinois University at Carbondale (SIU-C), California Energy Commission (CEC), and T. R. Miles, Technical Consultants, Inc. In the UFP technology, coal/opportunity fuels and air are simultaneously converted into separate streams of (1) pure hydrogen that can be utilized in fuel cells, (2) sequestration-ready CO{sub 2}, and (3) high temperature/pressure oxygen-depleted air to produce electricity in a gas turbine. The process produces near-zero emissions and, based on process modeling with best-case scenario assumptions, has an estimated process efficiency of 68%, based on electrical and H{sub 2} energy outputs relative to the higher heating value of coal, and an estimated equivalent electrical efficiency of 60%. The Phase I R&D program will determine the operating conditions that maximize separation of CO{sub 2} and pollutants from the vent gas, while simultaneously maximizing coal conversion efficiency and hydrogen production. The program integrates lab-, bench- and pilot-scale studies to demonstrate the UFP technology. This is the eleventh quarterly technical progress report for the Vision 21 UFP program supported by U.S. DOE NETL (Contract No. DE-FC26-00FT40974). This report summarizes program accomplishments for the period starting April 1, 2003 and ending June 30, 2003. The report includes an introduction summarizing the UFP technology, main program tasks, and program objectives; it also provides a summary of program activities and accomplishments covering progress in tasks including lab-scale experimental testing, pilot-scale assembly, and program management.

George Rizeq; Janice West; Arnaldo Frydman; Raul Subia; Vladimir Zamansky; Hana Loreth; Lubor Stonawski; Tomasz Wiltowski; Edwin Hippo; Shashi Lalvani

2003-07-01T23:59:59.000Z

464

FUEL-FLEXIBLE GASIFICATION-COMBUSTION TECHNOLOGY FOR PRODUCTION OF H2 AND SEQUESTRATION-READY CO2  

DOE Green Energy (OSTI)

It is expected that in the 21st century the Nation will continue to rely on fossil fuels for electricity, transportation, and chemicals. It will be necessary to improve both the process efficiency and environmental impact performance of fossil fuel utilization. GE Global Research (GEGR) has developed an innovative fuel-flexible Unmixed Fuel Processor (UFP) technology to produce H{sub 2}, power, and sequestration-ready CO{sub 2} from coal and other solid fuels. The UFP module offers the potential for reduced cost, increased process efficiency relative to conventional gasification and combustion systems, and near-zero pollutant emissions including NO{sub x}. GEGR (prime contractor) was awarded a contract from U.S. DOE NETL to develop the UFP technology. Work on this Phase I program started on October 1, 2000. The project team includes GEGR, Southern Illinois University at Carbondale (SIU-C), California Energy Commission (CEC), and T. R. Miles, Technical Consultants, Inc. In the UFP technology, coal and air are simultaneously converted into separate streams of (1) high-purity hydrogen that can be utilized in fuel cells or turbines, (2) sequestration-ready CO{sub 2}, and (3) high temperature/pressure vitiated air to produce electricity in a gas turbine. The process produces near-zero emissions and, based on Aspen Plus process modeling, has an estimated process efficiency of 6% higher than IGCC with conventional CO{sub 2} separation. The current R&D program will determine the feasibility of the integrated UFP technology through pilot-scale testing, and will investigate operating conditions that maximize separation of CO{sub 2} and pollutants from the vent gas, while simultaneously maximizing coal conversion efficiency and hydrogen production. The program integrates experimental testing, modeling and economic studies to demonstrate the UFP technology. This is the third annual technical progress report for the UFP program supported by U.S. DOE NETL (Contract No. DE-FC26-00FT40974). This report summarizes program accomplishments for the period starting October 1, 2002 and ending September 30, 2003. The report includes an introduction summarizing the UFP technology, main program tasks, and program objectives; it also provides a summary of program activities and accomplishments covering progress in tasks including lab-scale experimental testing, bench-scale experimental testing, process modeling, pilot-scale system design and assembly, and program management.

George Rizeq; Janice West; Arnaldo Frydman; Raul Subia; Vladimir Zamansky; Hana Loreth; Lubor Stonawski; Tomasz Wiltowski; Edwin Hippo; Shashi Lalvani

2003-10-01T23:59:59.000Z

465

FUEL-FLEXIBLE GASIFICATION-COMBUSTION TECHNOLOGY FOR PRODUCTION OF H2 AND SEQUESTRATION-READY CO2  

DOE Green Energy (OSTI)

It is expected that in the 21st century the Nation will continue to rely on fossil fuels for electricity, transportation, and chemicals. It will be necessary to improve both the process efficiency and environmental impact performance of fossil fuel utilization. GE Global Research has developed an innovative fuel-flexible Unmixed Fuel Processor (UFP) technology to produce H{sub 2}, power, and sequestration-ready CO{sub 2} from coal and other solid fuels. The UFP module offers the potential for reduced cost, increased process efficiency relative to conventional gasification and combustion systems, and near-zero pollutant emissions including NO{sub x}. GE Global Research (prime contractor) was awarded a contract from U.S. DOE NETL to develop the UFP technology. Work on this Phase I program started on October 1, 2000. The project team includes GE Global Research, Southern Illinois University at Carbondale (SIU-C), California Energy Commission (CEC), and T. R. Miles, Technical Consultants, Inc. In the UFP technology, coal and air are simultaneously converted into separate streams of (1) high-purity hydrogen that can be utilized in fuel cells or turbines, (2) sequestration-ready CO{sub 2}, and (3) high temperature/pressure vitiated air to produce electricity in a gas turbine. The process produces near-zero emissions and, based on ASPEN Plus process modeling, has an estimated process efficiency of 6 percentage points higher than IGCC with conventional CO{sub 2} separation. The current R&D program has determined the feasibility of the integrated UFP technology through pilot-scale testing, and investigated operating conditions that maximize separation of CO{sub 2} and pollutants from the vent gas, while simultaneously maximizing coal conversion efficiency and hydrogen production. The program integrated experimental testing, modeling and economic studies to demonstrate the UFP technology. This is the fifteenth quarterly technical progress report for the UFP program, which is supported by U.S. DOE NETL (Contract No. DE-FC26-00FT40974) and GE. This report summarizes program accomplishments for the period starting April 1, 2004 and ending June 30, 2004. The report includes an introduction summarizing the UFP technology, main program tasks, and program objectives; it also provides a summary of program activities and accomplishments covering progress in tasks including lab-scale experimental testing, pilot-scale testing, kinetic modeling, program management and technology transfer.

George Rizeq; Janice West; Arnaldo Frydman; Raul Subia; Vladimir Zamansky; K. Mondal; L. Stonawski; Krzysztof Piotrowski; T. Szymanski; Tomasz Wiltowski; Edwin Hippo

2004-11-01T23:59:59.000Z

466

FUEL-FLEXIBLE GASIFICATION-COMBUSTION TECHNOLOGY FOR PRODUCTION OF H2 AND SEQUESTRATION-READY CO2  

DOE Green Energy (OSTI)

It is expected that in the 21st century the Nation will continue to rely on fossil fuels for electricity, transportation, and chemicals. It will be necessary to improve both the process efficiency and environmental impact performance of fossil fuel utilization. GE Global Research has developed an innovative fuel-flexible Unmixed Fuel Processor (UFP) technology to produce H{sub 2}, power, and sequestration-ready CO{sub 2} from coal and other solid fuels. The UFP module offers the potential for reduced cost, increased process efficiency relative to conventional gasification and combustion systems, and near-zero pollutant emissions including NO{sub x}. GE Global Research (prime contractor) was awarded a contract from U.S. DOE NETL to develop the UFP technology. Work on this Phase I program started on October 1, 2000. The project team includes GE Global Research, Southern Illinois University at Carbondale (SIU-C), California Energy Commission (CEC), and T. R. Miles, Technical Consultants, Inc. In the UFP technology, coal and air are simultaneously converted into separate streams of (1) high-purity hydrogen that can be utilized in fuel cells or turbines, (2) sequestration-ready CO{sub 2}, and (3) high temperature/pressure vitiated air to produce electricity in a gas turbine. The process produces near-zero emissions and, based on ASPEN Plus process modeling, has an estimated process efficiency of 6 percentage points higher than IGCC with conventional CO{sub 2} separation. The current R&D program will determine the feasibility of the integrated UFP technology through pilot-scale testing, and will investigate operating conditions that maximize separation of CO{sub 2} and pollutants from the vent gas, while simultaneously maximizing coal conversion efficiency and hydrogen production. The program integrates experimental testing, modeling and economic studies to demonstrate the UFP technology. This is the fourteenth quarterly technical progress report for the UFP program, which is supported by U.S. DOE NETL (Contract No. DE-FC26-00FT40974) and GE. This report summarizes program accomplishments for the period starting January 1, 2004 and ending March 31, 2004. The report includes an introduction summarizing the UFP technology, main program tasks, and program objectives; it also provides a summary of program activities and accomplishments covering progress in tasks including lab-scale experimental testing, pilot-scale shakedown and performance testing, program management and technology transfer.

George Rizeq; Janice West; Arnaldo Frydman; Raul Subia; Vladimir Zamansky; Hana Loreth; Krzysztof Piotrowski; Tomasz Wiltowski; Edwin Hippo

2004-04-01T23:59:59.000Z

467

FUEL-FLEXIBLE GASIFICATION-COMBUSTION TECHNOLOGY FOR PRODUCTION OF H2 AND SEQUESTRATION-READY CO2  

DOE Green Energy (OSTI)

It is expected that in the 21st century the Nation will continue to rely on fossil fuels for electricity, transportation, and chemicals. It will be necessary to improve both the process efficiency and environmental impact performance of fossil fuel utilization. GE Global Research has developed an innovative fuel-flexible Unmixed Fuel Processor (UFP) technology to produce H{sub 2}, power, and sequestration-ready CO{sub 2} from coal and other solid fuels. The UFP module offers the potential for reduced cost, increased process efficiency relative to conventional gasification and combustion systems, and near-zero pollutant emissions including NO{sub x}. GE Global Research (prime contractor) was awarded a contract from U.S. DOE NETL to develop the UFP technology. Work on this Phase I program started on October 1, 2000. The project team includes GE Global Research, Southern Illinois University at Carbondale (SIU-C), California Energy Commission (CEC), and T. R. Miles, Technical Consultants, Inc. In the UFP technology, coal and air are simultaneously converted into separate streams of (1) high-purity hydrogen that can be utilized in fuel cells or turbines, (2) sequestration-ready CO{sub 2}, and (3) high temperature/pressure vitiated air to produce electricity in a gas turbine. The process produces near-zero emissions and, based on ASPEN Plus process modeling, has an estimated process efficiency of 6% higher than IGCC with conventional CO{sub 2} separation. The current R&D program will determine the feasibility of the integrated UFP technology through pilot-scale testing, and will investigate operating conditions that maximize separation of CO{sub 2} and pollutants from the vent gas, while simultaneously maximizing coal conversion efficiency and hydrogen production. The program integrates experimental testing, modeling and economic studies to demonstrate the UFP technology. This is the thirteenth quarterly technical progress report for the UFP program, which is supported by U.S. DOE NETL under Contract No. DE-FC26-00FT40974. This report summarizes program accomplishments for the period starting October 1, 2003 and ending December 31, 2003. The report includes an introduction summarizing the UFP technology, main program tasks, and program objectives; it also provides a summary of program activities and accomplishments covering progress in tasks including lab-scale experimental testing, pilot-scale assembly, pilot-scale demonstration and program management and technology transfer.

George Rizeq; Janice West; Arnaldo Frydman; Raul Subia; Vladimir Zamansky; Hana Loreth; Krzysztof Piotrowski; Tomasz Wiltowski; Edwin Hippo

2004-01-01T23:59:59.000Z

468

FUEL-FLEXIBLE GASIFICATION-COMBUSTION TECHNOLOGY FOR PRODUCTION OF H2 AND SEQUESTRATION-READY CO2  

DOE Green Energy (OSTI)

It is expected that in the 21st century the Nation will continue to rely on fossil fuels for electricity, transportation, and chemicals. It will be necessary to improve both the thermodynamic efficiency and environmental impact performance of fossil fuel utilization. General Electric Energy and Environmental Research Corporation (GE-EER) has developed an innovative fuel-flexible Advanced Gasification-Combustion (AGC) concept to produce H{sub 2} and sequestration-ready CO{sub 2} from solid fuels. The AGC module offers potential for reduced cost and increased energy efficiency relative to conventional gasification and combustion systems. GE-EER was awarded a Vision-21 program from U.S. DOE NETL to develop the AGC technology. Work on this three-year program started on October 1, 2000. The project team includes GE-EER, California Energy Commission, Southern Illinois University at Carbondale, and T. R. Miles, Technical Consultants, Inc. In the AGC technology, coal/opportunity fuels and air are simultaneously converted into separate streams of (1) pure hydrogen that can be utilized in fuel cells, (2) sequestration-ready CO{sub 2}, and (3) high temperature/pressure oxygen depleted air to produce electricity in a gas turbine. The process produces near-zero emissions and, based on preliminary modeling work in the first quarter of this program, has an estimated process efficiency of approximately 67% based on electrical and H{sub 2} energy outputs relative to the higher heating value of coal. The three-year R and D program will determine the operating conditions that maximize separation of CO{sub 2} and pollutants from the vent gas, while simultaneously maximizing coal conversion efficiency and hydrogen production. The program integrates lab-, bench- and pilot-scale studies to demonstrate the AGC concept. This is the 1st quarterly progress report for the Vision-21 AGC program supported by U.S. DOE NETL (Contract: DE-FC26-00FT40974). This report summarizes program accomplishments for the period starting October 1, 2000 and ending December 31, 2000. The report includes an introduction summarizing the AGC concept, main program tasks, objectives of this program, and provides a summary of initial program activities covering program management and preliminary progress in first year tasks including lab- and bench-scale design, facilities preparation, and process/kinetic modeling. More over, the report presents and discusses preliminary results particularly form the bench-scale design and process modeling efforts including a process flow diagram that incorporates the AGC module with other vision-21 plant components with the objective of maximizing H{sub 2} production and process efficiency.

George Rizeq; Ravi Kumar; Janice West; Vitali Lissianski; Neil Widmer; Vladimir Zamansky

2001-01-01T23:59:59.000Z

469

FUEL-FLEXIBLE GASIFICATION-COMBUSTION TECHNOLOGY FOR PRODUCTION OF H2 AND SEQUESTRATION-READY CO2  

DOE Green Energy (OSTI)

It is expected that in the 21st century the Nation will continue to rely on fossil fuels for electricity, transportation, and chemicals. It will be necessary to improve both the process efficiency and environmental impact performance of fossil fuel utilization. GE Energy and Environmental Research Corporation (GE EER) has developed an innovative fuel-flexible Unmixed Fuel Processor (UFP) technology to produce H{sub 2}, power, and sequestration-ready CO{sub 2} from coal and other solid fuels. The UFP module offers the potential for reduced cost, increased process efficiency relative to conventional gasification and combustion systems, and near-zero pollutant emissions including NO{sub x}. GE EER was awarded a Vision 21 program from U.S. DOE NETL to develop the UFP technology. Work on this Phase I program started on October 1, 2000. The project team includes GE EER, California Energy Commission, Southern Illinois University at Carbondale, and T. R. Miles, Technical Consultants, Inc. In the UFP technology, coal/opportunity fuels and air are simultaneously converted into separate streams of (1) pure hydrogen that can be utilized in fuel cells, (2) sequestration-ready CO{sub 2}, and (3) high temperature/pressure oxygen-depleted air to produce electricity in a gas turbine. The process produces near-zero emissions and, based on process modeling work, has an estimated process efficiency of 68%, based on electrical and H{sub 2} energy outputs relative to the higher heating value of coal, and an estimated equivalent electrical efficiency of 60%. The Phase I R&D program will determine the operating conditions that maximize separation of CO{sub 2} and pollutants from the vent gas, while simultaneously maximizing coal conversion efficiency and hydrogen production. The program integrates lab-, bench- and pilot-scale studies to demonstrate the UFP technology. This is the ninth quarterly technical progress report for the Vision 21 UFP program supported by U.S. DOE NETL (Contract No. DE-FC26-00FT40974). This report summarizes program accomplishments for the period starting October 1, 2002 and ending December 31, 2002. The report includes an introduction summarizing the UFP technology, main program tasks, and program objectives; it also provides a summary of program activities and accomplishments covering progress in tasks including lab- and bench-scale experimental testing, pilot-scale design and assembly, and program management.

George Rizeq; Janice West; Arnaldo Frydman; Raul Subia; Vladimir Zamansky; Hana Loreth; Lubor Stonawski; Tomasz Wiltowski; Edwin Hippo; Shashi Lalvani

2003-01-01T23:59:59.000Z

470

FUEL-FLEXIBLE GASIFICATION-COMBUSTION TECHNOLOGY FOR PRODUCTION OF H2 AND SEQUESTRATION-READY CO2  

DOE Green Energy (OSTI)

It is expected that in the 21st century the Nation will continue to rely on fossil fuels for electricity, transportation, and chemicals. It will be necessary to improve both the thermodynamic efficiency and environmental impact performance of fossil fuel utilization. General Electric Energy and Environmental Research Corporation (GE EER) has developed an innovative fuel-flexible Advanced Gasification-Combustion (AGC) concept to produce H{sub 2} and sequestration-ready CO{sub 2} from solid fuels. The AGC module offers potential for reduced cost and increased energy efficiency relative to conventional gasification and combustion systems. GE EER was awarded a Vision-21 program from U.S. DOE NETL to develop the AGC technology. Work on this three-year program started on October 1, 2000. The project team includes GE EER, California Energy Commission, Southern Illinois University at Carbondale, and T. R. Miles, Technical Consultants, Inc. In the AGC technology, coal/opportunity fuels and air are simultaneously converted into separate streams of (1) pure hydrogen that can be utilized in fuel cells, (2) sequestration-ready CO{sub 2}, and (3) high temperature/pressure oxygen-depleted air to produce electricity in a gas turbine. The process produces near-zero emissions and, based on preliminary modeling work in the first quarter of this program, has an estimated process efficiency of approximately 67% based on electrical and H{sub 2} energy outputs relative to the higher heating value of coal. The three-year R&D program will determine the operating conditions that maximize separation of CO{sub 2} and pollutants from the vent gas, while simultaneously maximizing coal conversion efficiency and hydrogen production. The program integrates lab-, bench- and pilot-scale studies to demonstrate the AGC concept. This is the third quarterly technical progress report for the Vision-21 AGC program supported by U.S. DOE NETL (Contract: DE-FC26-00FT40974). This report summarizes program accomplishments for the period starting April 1, 2001 and ending June 30, 2001. The report includes an introduction summarizing the AGC concept, main program tasks, objectives of this program, and provides a summary of program activities covering program management and progress in first year tasks including lab- and bench-scale design, facilities preparation, and engineering studies.

George Rizeq; Janice West; Arnaldo Frydman; Vladimir Zamansky; Linda Denton; Hana Loreth; Tomasz Wiltowski

2001-07-01T23:59:59.000Z