Powered by Deep Web Technologies
Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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.


1

Phase Change Materials for Thermal Energy Storage in Concentrated Solar Thermal Power Plants  

E-Print Network (OSTI)

the replacement of non-renewable energy production. Unlikereplacement of non-renewable energy sources. The thermal

Hardin, Corey Lee

2011-01-01T23:59:59.000Z

2

Efficient thermal management for multiprocessor systems  

E-Print Network (OSTI)

2.2.4 Thermal Modeling . . . . . . . .63 Table 4.3: Thermal Hot Spots . . . . . . . . . . . . . .Performance-Efficient Thermal Management . . . . . . . . . .

Co?kun, Ay?e K?v?lc?m

2009-01-01T23:59:59.000Z

3

Efficient thermal energy distribution in commercial buildings...  

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

Efficient thermal energy distribution in commercial buildings -- Final Report Title Efficient thermal energy distribution in commercial buildings -- Final Report Publication Type...

4

Cogeneration improves thermal EOR efficiency  

SciTech Connect

This paper reports that the successful completion and operation of a cogeneration plant is a prime example of the multi-faceted use of cogeneration. Through high-efficiency operation, significant energy is saved by combining the two process of steam and electrical production. The 225-megawatt (mw) cogeneration plant provides 1,215 million lb/hr of steam for thermally enhanced oil recovery (TEOR) at the Midway-Sunset oil field in south-central California. Overall pollutant emissions as well as total electric and steam production costs have been reduced. The area's biological resources also have been protected.

Western, E.R. (Oryx Energy Co., Fellows, CA (US)); Nass, D.W. (Chas. T. Main Inc., Pasadena, CA (US))

1990-10-01T23:59:59.000Z

5

CC6, Graphene Reinforced Composites as Efficient Thermal ...  

Science Conference Proceedings (OSTI)

Efficient thermal management of electronics, optoelectronics and photonic devices require better thermal interface materials (TIMs). Current TIMs are based on...

6

Linearly Polarized Thermal Emitter for More Efficient Thermophotovoltaic Devices  

Ames Laboratory researchers have developed fabrication methods for a polarized thermal emitter than can be used to create more efficient ...

7

Enabling Energy-Efficient Approaches to Thermal Comfort Using Room Air Motion  

E-Print Network (OSTI)

Energy Efficiency, Thermal Comfort with Air MotionEnergy Efficiency, Thermal Comfort with Air Motion No-fan 2Energy Efficiency, Thermal Comfort with Air Motion

Pasut, Wilmer; Arens, Edward; Zhang, Hui; Kaam, Soazig; Zhai, Yongchao

2013-01-01T23:59:59.000Z

8

Energy Efficient Proactive Thermal Management in Memory Subsystem  

E-Print Network (OSTI)

Energy Efficient Proactive Thermal Management in Memory Subsystem Raid Ayoub rayoub management of memory subsystem is challenging due to performance and thermal constraints. Big energy gains appreciable energy savings in memory sub-system and mini- mize thermal problems. We adopt the consolidation

Simunic, Tajana

9

Application Level Optimizations for Energy Efficiency and Thermal Stability  

E-Print Network (OSTI)

whether application-level software optimization can improve energy efficiency and thermal behavior. We use-life multicore system to explore two issues: (i) software tun- ing to improve scalability and energyApplication Level Optimizations for Energy Efficiency and Thermal Stability Md. Ashfaquzzaman Khan

Coskun, Ayse

10

Maximizing Thermal Efficiency and Optimizing Energy Management (Fact Sheet)  

DOE Green Energy (OSTI)

Researchers at the Thermal Test Facility (TTF) on the campus of the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) in Golden, Colorado, are addressing maximizing thermal efficiency and optimizing energy management through analysis of efficient heating, ventilating, and air conditioning (HVAC) strategies, automated home energy management (AHEM), and energy storage systems.

Not Available

2012-03-01T23:59:59.000Z

11

Maximizing Thermal Efficiency and Optimizing Energy Management (Fact Sheet)  

SciTech Connect

Researchers at the Thermal Test Facility (TTF) on the campus of the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) in Golden, Colorado, are addressing maximizing thermal efficiency and optimizing energy management through analysis of efficient heating, ventilating, and air conditioning (HVAC) strategies, automated home energy management (AHEM), and energy storage systems.

2012-03-01T23:59:59.000Z

12

Linearly Polarized Thermal Emitter for More Efficient ...  

... power generation More Information The photonic crystals used to create the polarized thermal emitter have been demonstrated to enable control of both spectral ...

13

Thermal management concepts for higher efficiency heavy vehicles.  

DOE Green Energy (OSTI)

Thermal management is a cross-cutting technology that directly or indirectly affects engine performance, fuel economy, safety and reliability, aerodynamics, driver/passenger comfort, materials selection, emissions, maintenance, and component life. This review paper provides an assessment of thermal management for large trucks, particularly as it impacts these features. Observations arrived at from a review of the state of the art for thermal management for over-the-road trucks are highlighted and commented on. Trends in the large truck industry, pertinent engine truck design and performance objectives, and the implications of these relative to thermal management, are presented. Finally, new thermal management concepts for high efficiency vehicles are described.

Wambsganss, M. W.

1999-05-19T23:59:59.000Z

14

Energy Conversion and Thermal Efficiency Sales Tax Exemption | Department  

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

Energy Conversion and Thermal Efficiency Sales Tax Exemption Energy Conversion and Thermal Efficiency Sales Tax Exemption Energy Conversion and Thermal Efficiency Sales Tax Exemption < Back Eligibility Commercial Industrial Savings Category Heating & Cooling Commercial Heating & Cooling Heating Bioenergy Biofuels Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Wind Solar Water Heating Maximum Rebate None Program Info State Ohio Program Type Sales Tax Incentive Rebate Amount 100% exemption Provider Ohio Department of Taxation Ohio may provide a sales and use tax exemption for certain tangible personal property used in energy conversion, solid waste energy conversion, or thermal efficiency improvement facilities designed, constructed, or installed after December 31, 1974. Qualifying energy conversion facilities are those that are used for the

15

Advanced Organic Vapor Cycles for Improving Thermal Conversion Efficiency in Renewable Energy Systems  

E-Print Network (OSTI)

in thermal energy conversion efficiency over present solarsolar thermal- photovoltaic co-generation scheme could have potentially very high solar-to-electric efficiency.solar-to-electric conversion efficiencies are attained and no thermal

Ho, Tony

2012-01-01T23:59:59.000Z

16

Enabling Energy-Efficient Approaches to Thermal Comfort Using Room Air Motion  

E-Print Network (OSTI)

uc/item/4488d1b8 Energy Efficiency, Thermal Comfort with Airuc/item/4488d1b8 Energy Efficiency, Thermal Comfort with Airuc/item/4488d1b8 Energy Efficiency, Thermal Comfort with Air

Pasut, Wilmer; Arens, Edward; Zhang, Hui; Kaam, Soazig; Zhai, Yongchao

2013-01-01T23:59:59.000Z

17

NON-RENEWABLE RESOURCE BOOMS AND THE POOR Graham A. Davis1  

E-Print Network (OSTI)

1 NON-RENEWABLE RESOURCE BOOMS AND THE POOR Graham A. Davis1 Division of Economics and Business the level of non-renewable resource extraction and changes in the level of extraction affects the poor. Our," and "make pro-poor forms of growth more difficult" (Ross 2001, p. 16).3 It is well understood that non-renewable

18

An investigation of methods for reducing the use of non-renewable energy resources for housing in Thailand  

E-Print Network (OSTI)

The purpose of this research is to develop methods that reduce energy consumption in a residential building in a hot and humid climate region (Thailand) using efficient architectural building components and renewable energy (solar energy) to produce electricity, domestic hot water, and supplemental cooling by night sky radiation. Improving the architectural building components, including building materials, is an option to reduce energy consumption in a building. Using renewable energy sources is another option to reduce the consumption of non-renewable energy. In residential buildings, solar energy has been utilized for space heating and domestic hot water using active solar collector systems and for generating electricity using photovoltaic (PV) systems. One photovoltaic system, the hybrid photovoltaic-thermal (PV-T) collector system, has been developed by several researchers over the last 20 years. The hybrid photovoltaic-thermal (PV-T) collector system is a combination photovoltaic (for producing electricity) and solar thermal collector (for producing hot water). Theoretical and experimental studies of this collector have highlighted the advantages of the hybrid PV-T collector system over separate systems of PV and solar collector in term of system efficiency and economics. Unfortunately, very little experimental data exists that demonstrates the advantages of a combined system. Therefore, one of the objectives of this study conducted was an experimental study of this system as an auxiliary energy source for a residential building. Night sky radiation has also been studied as a cooling strategy. However, no attempt so far could be found to integrate it to a hybrid PV-T collector system. The night sky radiation strategy could be operated with the hybrid PV/T collector system by using existing resources that are already present in the solar system. The integration of the night sky radiation into the hybrid PV-T collector system should yield more productivity of the system than the operation of the Hybrid PVT system alone. The research methods used in this work included instrumentation of a case-study house in Thailand, an experimental PV-T collector system, and a calibrated building thermal simulation. A typical contemporary Thai residential building was selected as a case-study house. Its energy use and local weather data were measured and analyzed. Published energy use of Thai residential buildings was also analyzed as well to determine average energy consumption. A calibrated computer model of the case-study building was constructed using the DOE-2 program. A field experiment of the thermal PV system was constructed to test its ability to simultaneously produce electricity and hot water in the daytime, and shed heat at night as a cooling strategy (i.e., night sky radiation). The resultant electricity and hot water produced by the hybrid PV-T collector system helped to reduce the use of non-renewable energy. The cooling produced by the night sky radiation also has to potential to reduce the cooling load. The evaluation of the case-study house and results of the field experiment helped to quantify the potential reduction of energy use in Thai residential buildings. This research provided the following benefits: 1) experimental results of a hybrid PV-T solar collector system that demonstrates its performance compared to typical system of separate photovoltaic and solar collector, 2) results of night sky radiation experiments using a photovoltaic panel as a radiator to demonstrate the performance of this new space cooling strategy, and 3) useful data from the case-study house simulation results and guidelines to assist others in transferring the results to other projects.

Rasisuttha, Sakkara

2003-05-01T23:59:59.000Z

19

Near Zero Emissions at 50 Percent Thermal Efficiency  

SciTech Connect

Detroit Diesel Corporation (DDC) has successfully completed a 10 year DOE sponsored heavy-duty truck engine program, hereafter referred to as the NZ-50 program. This program was split into two major phases. The first phase was called ??Near-Zero Emission at 50 Percent Thermal Efficiency,? and was completed in 2007. The second phase was initiated in 2006, and this phase was named ??Advancements in Engine Combustion Systems to Enable High-Efficiency Clean Combustion for Heavy-Duty Engines.? This phase was completed in September, 2010. The key objectives of the NZ-50 program for this first phase were to: ? Quantify thermal efficiency degradation associated with reduction of engine-out NOx emissions to the 2007 regulated level of ~1.1 g/hp-hr. ? Implement an integrated analytical/experimental development plan for improving subsystem and component capabilities in support of emerging engine technologies for emissions and thermal efficiency goals of the program. ? Test prototype subsystem hardware featuring technology enhancements and demonstrate effective application on a multi-cylinder, production feasible heavy-duty engine test-bed. ? Optimize subsystem components and engine controls (calibration) to demonstrate thermal efficiency that is in compliance with the DOE 2005 Joule milestone, meaning greater than 45% thermal efficiency at 2007 emission levels. ? Develop technology roadmap for meeting emission regulations of 2010 and beyond while mitigating the associated degradation in engine fuel consumption. Ultimately, develop technical prime-path for meeting the overall goal of the NZ-50 program, i.e., 50% thermal efficiency at 2010 regulated emissions. These objectives were successfully met during the course of the NZ-50 program. The most noteworthy achievements in this program are summarized as follows: ? Demonstrated technologies through advanced integrated experiments and analysis to achieve the technical objectives of the NZ-50 program with 50.2% equivalent thermal efficiency under EPA 2010 emissions regulations. ? Experimentally demonstrate brake efficiency of 48.5% at EPA 2010 emission level at single steady-state point. ? Analytically demonstrated additional brake efficiency benefits using advanced aftertreatment configuration concept and air system enhancement including, but not limited to, turbo-compound, variable valve actuator system, and new cylinder head redesign, thus helping to achieve the final program goals. ? Experimentally demonstrated EPA 2010 emissions over FTP cycles using advanced integrated engine and aftertreatment system. These aggressive thermal efficiency and emissions results were achieved by applying a robust systems technology development methodology. It used integrated analytical and experimental tools for subsystem component optimization encompassing advanced fuel injection system, increased EGR cooling capacity, combustion process optimization, and advanced aftertreatment technologies. Model based controls employing multiple input and output techniques enabled efficient integration of the various subsystems and ensured optimal performance of each system within the total engine package. . The key objective of the NZ-50 program for the second phase was to explore advancements in engine combustion systems using high-efficiency clean combustion (HECC) techniques to minimize cylinder-out emissions, targeting a 10% efficiency improvement. The most noteworthy achievements in this phase of the program are summarized as follows: ? Experimentally and analytically evaluated numerous air system improvements related to the turbocharger and variable valve actuation. Some of the items tested proved to be very successful and modifications to the turbine discovered in this program have since been incorporated into production hardware. ? The combustion system development continued with evaluation of various designs of the 2-step piston bowl. Significant improvemen

None

2012-12-31T23:59:59.000Z

20

Efficient thermal field computation in phase-field models  

Science Conference Proceedings (OSTI)

We solve the phase-field equations in two dimensions to simulate crystal growth in the low undercooling regime. The novelty is the use of a fast solver for the free space heat equation to compute the thermal field. This solver is based on the efficient ... Keywords: Crystal growth, Dendritic solidification, Diffusion equation, Fast solvers, Integral representation, Phase-field, Unbounded domain

Jing-Rebecca Li; Donna Calhoun; Lucien Brush

2009-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Impact of improved building thermal efficiency on residential energy demand  

SciTech Connect

The impact of improved building shell thermal efficiency on residential energy demand is explored in a theoretical framework. The important economic literature on estimating the price elasticity of residential energy demand is reviewed. The specification of the residential energy demand model is presented. The data used are described. The empirical estimation of the residential energy demand model is described. (MHR)

Adams, R.C.; Rockwood, A.D.

1983-04-01T23:59:59.000Z

22

SunShot Initiative: High-Efficiency Thermal Energy Storage System for CSP  

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

High-Efficiency Thermal Energy High-Efficiency Thermal Energy Storage System for CSP to someone by E-mail Share SunShot Initiative: High-Efficiency Thermal Energy Storage System for CSP on Facebook Tweet about SunShot Initiative: High-Efficiency Thermal Energy Storage System for CSP on Twitter Bookmark SunShot Initiative: High-Efficiency Thermal Energy Storage System for CSP on Google Bookmark SunShot Initiative: High-Efficiency Thermal Energy Storage System for CSP on Delicious Rank SunShot Initiative: High-Efficiency Thermal Energy Storage System for CSP on Digg Find More places to share SunShot Initiative: High-Efficiency Thermal Energy Storage System for CSP on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage CSP Recovery Act

23

Economic growth and the use of non-renewable energy resources.  

E-Print Network (OSTI)

??This thesis is a contribution to the analysis of the relationship between the economic growth and the usage of non-renewable energy resources. More precisely, it (more)

Prez-Barahona, Agustn

2007-01-01T23:59:59.000Z

24

Thermal-Electric Conversion Efficiency of the Dish/AMTEC Solar Thermal Power System in Wind Condition  

Science Conference Proceedings (OSTI)

The dish/AMTEC solar thermal power system is a newly proposed solar energy utilization system that enables the direct thermal-electric conversion. The performance of the solar dish/AMTEC system in wind condition has been theoretically evaluated in addition ... Keywords: dish/AMTEC solar thermal power system, efficiency, thermal-electric conversion, wind condition

Lan Xiao; Shuang-Ying Wu; You-Rong Li

2012-07-01T23:59:59.000Z

25

SunShot Initiative: High-Efficiency Thermal Storage System for...  

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

Efficiency Thermal Storage System for Solar Plants to someone by E-mail Share SunShot Initiative: High-Efficiency Thermal Storage System for Solar Plants on Facebook Tweet about...

26

Energy-Efficient Speed Scheduling for Real-Time Tasks under Thermal Constraints  

E-Print Network (OSTI)

Energy-Efficient Speed Scheduling for Real-Time Tasks under Thermal Constraints Shengquan Wang. We develop energy-efficient speed scheduling schemes for frame-based real-time tasks under thermal in order to achieve thermal-constrained energy-efficient design. However, this does not work. The existing

Wang, Shengquan

27

Making Steel Framing as Thermally Efficient as Wood  

E-Print Network (OSTI)

In many world regions like North America and Scandinavia wood framing is dominant technology for residential buildings. During last two decades several companies around the world started to promote a low-gage steel framing for residential and commercial buildings. Steel framing has many advantages over wood framing; strength, low weight, dimensional stability, resistance to termite damage, almost 100% recycleability, etc .. However because of several reasons an application of steel as a framing material in US residential building market is relatively low. Steel industry has noticed much more success on commercial building market which is not as rigorous regarding thermal efficiency and energy conservation. Steel framing has one significant disadvantage over wood; Steel members conduct heat extremely well. This effect is known as thermal bridging, and it can sharply reduce a wall's effective Rvalue. The simplest and most common way to overcome this problem is to block the path of heat flow with rigid foam insulation. Adding rigid foam insulation not only increases the whole wall's R-value, but it also reduces the temperature difference between the center of the cavity and the stud area, which cuts down on the possibility of black stains forming from dirt getting asymmetrically attracted to cold spots on a wall's surface. However, rigid foam insulation is an expensive solution. Several material configurations were developed in the past to increase thermal effectiveness of steel-framed structures. This paper is focused on most common options of thermal improvements of steels framed walls. They were as follow: 1) diminishing the contact area between the studs and exterior sheathing materials, 2) reducing the steel stud web area, 3) replacing the steel web with a less conductive material, and 4) placing foam insulation in locations where the thermal shorts are most critical. Researchers at Oak Ridge National Laboratory (ORNL) have utilized both hot box testing and computer simulations in aim to optimize thermal design of steel stud walls.. While examining several material options, ORNL's BTC was also striving to develop energy-efficient steel stud wall technologies that would enable steel-stud walls to beat the performance of traditional 2 x 6 wood stud walls. Several, most current, ORNL developments in steel framing are presented below.

Kosny, J.; Childs, P.

2002-01-01T23:59:59.000Z

28

Increasing the energetic efficiency in producing of electric and thermal power in thermal power plants by using of variable speed  

Science Conference Proceedings (OSTI)

In this work is presenting a theoretical analysis and an experimental application of the energetic efficiency increase by using of variable-speed AC electric drive systems in a thermal power plant that produces electric and thermal power. Are presented ... Keywords: asynchronous motor, district heating system, energetic efficiency, harmonic distorsion generated by adjustable speed drives, pumping station, static frequency converter, testing

Sorin Ioan Deaconu; Gabriel Nicolae Popa; Iosif Popa

2008-09-01T23:59:59.000Z

29

Energy Efficient Process Heating: Insulation and Thermal Mass Kevin Carpenter and Kelly Kissock  

E-Print Network (OSTI)

1 Energy Efficient Process Heating: Insulation and Thermal Mass Kevin Carpenter and Kelly Kissock tanks and reducing thermal mass. A companion paper, Energy Efficiency Process Heating: Managing Air Flow of the oven/furnace. Reducing the quantity of energy lost to thermal mass in a process heating system saves

Kissock, Kelly

30

A New Thermal-Conscious System-Level Methodology for Energy-Efficient Processor Voltage Selection  

E-Print Network (OSTI)

A New Thermal-Conscious System-Level Methodology for Energy-Efficient Processor Voltage Selection a thermal-conscious system-level methodology to make energy-efficient voltage selection (VS) for nanometer), thermal resistance, are integrated and considered in our system models, and their impacts on energy

Wang, Yu

31

High Energy Density Thermal Batteries: Thermoelectric Reactors for Efficient Automotive Thermal Storage  

SciTech Connect

HEATS Project: Sheetak is developing a new HVAC system to store the energy required for heating and cooling in EVs. This system will replace the traditional refrigerant-based vapor compressors and inefficient heaters used in todays EVs with efficient, light, and rechargeable hot-and-cold thermal batteries. The high energy density thermal batterywhich does not use any hazardous substancescan be recharged by an integrated solid-state thermoelectric energy converter while the vehicle is parked and its electrical battery is being charged. Sheetaks converters can also run on the electric battery if needed and provide the required cooling and heating to the passengerseliminating the space constraint and reducing the weight of EVs that use more traditional compressors and heaters.

None

2011-11-15T23:59:59.000Z

32

Renewable and Non-Renewable Resources Tariff RNR-7 (Georgia) | Department  

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

Renewable and Non-Renewable Resources Tariff RNR-7 (Georgia) Renewable and Non-Renewable Resources Tariff RNR-7 (Georgia) Renewable and Non-Renewable Resources Tariff RNR-7 (Georgia) < Back Eligibility Commercial Construction Fuel Distributor General Public/Consumer Industrial Installer/Contractor Investor-Owned Utility Municipal/Public Utility Retail Supplier Rural Electric Cooperative Systems Integrator Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Georgia Program Type Green Power Purchasing Mandatory Utility Green Power Option Provider Georgia Power Company The Renewable and Non-Renewable Resource tariff is authorized by the Georgia Public Service Commission (PSC), which requires that the investor owned utility, Georgia Power Company, purchase renewable energy cumulative

33

Design and global optimization of high-efficiency solar thermal systems with tungsten cermets  

E-Print Network (OSTI)

Solar thermal, thermoelectric, and thermophotovoltaic (TPV) systems have high maximum theoretical efficiencies; experimental systems fall short because of losses by selective solar absorbers and TPV selective emitters. To ...

Chester, David A.

34

High-Efficiency Thermal Energy Storage System for CSP  

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

June 15, 2013 | Singh * Thermal modeling will be conducted to establish the benefits of using a high thermal conducting graphite foams in conjunction with PCM and to develop a...

35

CFD-based operational thermal efficiency improvement of a production data center  

Science Conference Proceedings (OSTI)

Effective cooling of data centers presents a dual challenge: increased cooling power to meet the ever increasing device heat loads, and the need for energy efficient cooling. Detailed analysis of the thermal and flow conditions within a data center are ... Keywords: computational fluid dynamics, energy efficiency, production data center, thermal management

Umesh Singh; Amarendra K. Singh; S. Parvez; Anand Sivasubramaniam

2010-02-01T23:59:59.000Z

36

Developing Thermal Processes with Energy Efficiency in Mind  

Science Conference Proceedings (OSTI)

Opportunities to conserve energy not only reduce ecological impact, but can result in significant cost saving, as thermal processing is a critical cost driver in...

37

Maximizing Thermal Efficiency and Optimizing Energy Management (Fact Sheet), Thermal Test Facility (TTF), NREL (National Renewable Energy Laboratory)  

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

Maximizing Thermal Efficiency and Maximizing Thermal Efficiency and Optimizing Energy Management Scientists at this living laboratory develop optimal solutions for managing energy flows within buildings and transportation systems. The built environment is stressing the utility grid to a greater degree than ever before. Growing demand for electric vehicles, space conditioning, and plug loads presents a critical opportunity for more effective energy management and development of efficiency technologies. Researchers at the Thermal Test Facility (TTF) on the campus of the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) in Golden, Colorado, are addressing this opportunity. Through analysis of efficient heating, ventilating, and air conditioning (HVAC) strategies, automated home energy management (AHEM), and energy storage systems,

38

Flashlamp radiation recycling for enhanced pumping efficiency and reduced thermal load  

DOE Patents (OSTI)

A method for recycling laser flashlamp radiation in selected wavelength ranges to decrease thermal loading of the solid state laser matrix while substantially maintaining the pumping efficiency of the flashlamp.

Jancaitis, K.S.; Powell, H.T.

1986-10-23T23:59:59.000Z

39

Flashlamp radiation recycling for enhanced pumping efficiency and reduced thermal load  

DOE Patents (OSTI)

A method for recycling laser flashlamp radiation in selected wavelength ranges to decrease thermal loading of the solid state laser matrix while substantially maintaining the pumping efficiency of the flashlamp.

Jancaitis, Kenneth S. (Pleasant Hill, CA); Powell, Howard T. (Livermore, CA)

1989-01-01T23:59:59.000Z

40

High-Efficiency Thermal Energy Storage System for CSP  

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

April 15. 2013 | Singh April 15. 2013 | Singh * Thermal modeling will be conducted to establish the benefits of using a high thermal conducting graphite foams in conjunction with PCM and to develop a design for a laboratory scale prototype. * Variety of characterizations will be carried out to qualify the materials (PCMs, alloys, coatings) for the prototype construction. * Process to infiltrate selected PCM into the foam will be developed. * Using the appropriate brazing/joining techniques, prototype will be assembled. * Performance testing of the TES system prototype to ensure a full- scale system will meet the SunShot goals. * Complete cost analysis of the proposed TES system * Complete laboratory scale prototype design * Develop SiC coating using polycarbosilanes for graphite

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Variation of collector efficiency and receiver thermal loss as a function of solar irradiance  

DOE Green Energy (OSTI)

Efficiency and thermal loss of a parabolic trough concentrating solar collector have been measured for values of solar irradiance between 400 W/m/sup 2/ and 1000 W/m/sup 2/. Both parameters are shown to vary significantly with changing solar irradiance. Significant errors can result from improper use of currently published efficiency data.

Dudley, V.E.; Workhoven, R.M.

1982-01-01T23:59:59.000Z

42

Results of a field test of heating system efficiency and thermal distribution system efficiency in a manufactured home  

SciTech Connect

A two-day test using electric coheating was performed on a manufactured home in Watertown, New York. The main objective of the test was to evaluate planned procedures for measuring thermal distribution system efficiency. (Thermal distribution systems are the ductwork or piping used to transport heat or cooling effect from the equipment that produces it to the building spaces in which it is used.) These procedures are under consideration for a standard method of test now being prepared by a special committee of the American Society of Heating, Refrigerating, and Air-Conditioning Engineers. The ability of a coheating test to give a credible and repeatable value for the overall heating system efficiency was supported by the test data. Distribution efficiency is derived from system efficiency by correcting for energy losses from the equipment. Alternative means for achieving this were tested and assessed. The best value for system efficiency in the Watertown house was 0.53, while the best value for distribution efficiency was 0.72.

Andrews, J.W.; Krajewski, R.F.; Strasser, J.J. [Brookhaven National Lab., Upton, NY (United States); Kinney, L.; Lewis, G. [Synertech Systems Corp., Syracuse, NY (United States)

1995-05-01T23:59:59.000Z

43

Computational Efficient Upscaling Methodology for Predicting Thermal Conductivity of Nuclear Waste forms  

SciTech Connect

This study evaluated different upscaling methods to predict thermal conductivity in loaded nuclear waste form, a heterogeneous material system. The efficiency and accuracy of these methods were compared. Thermal conductivity in loaded nuclear waste form is an important property specific to scientific researchers, in waste form Integrated performance and safety code (IPSC). The effective thermal conductivity obtained from microstructure information and local thermal conductivity of different components is critical in predicting the life and performance of waste form during storage. How the heat generated during storage is directly related to thermal conductivity, which in turn determining the mechanical deformation behavior, corrosion resistance and aging performance. Several methods, including the Taylor model, Sachs model, self-consistent model, and statistical upscaling models were developed and implemented. Due to the absence of experimental data, prediction results from finite element method (FEM) were used as reference to determine the accuracy of different upscaling models. Micrographs from different loading of nuclear waste were used in the prediction of thermal conductivity. Prediction results demonstrated that in term of efficiency, boundary models (Taylor and Sachs model) are better than self consistent model, statistical upscaling method and FEM. Balancing the computation resource and accuracy, statistical upscaling is a computational efficient method in predicting effective thermal conductivity for nuclear waste form.

Li, Dongsheng; Sun, Xin; Khaleel, Mohammad A.

2011-09-28T23:59:59.000Z

44

SunShot Initiative: High-Efficiency Thermal Energy Storage System for CSP  

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

High-Efficiency Thermal Energy Storage System for CSP High-Efficiency Thermal Energy Storage System for CSP ANL logo Photo of a black and white porous material magnified 50 times by a microscope. Microstructure of the highly thermal conductive foam that will be used for the prototype TES system. Image from ANL Argonne National Laboratory and project partner Ohio Aerospace Institute, under the National Laboratory R&D competitive funding opportunity, will design, develop, and test a prototype high-temperature and high-efficiency thermal energy storage (TES) system with rapid charging and discharging times. By increasing the efficiency of TES systems, this project aims to lower the capital costs of concentrating solar power (CSP) systems. Approach The research team is developing and evaluating a novel approach for TES at temperatures greater than 700˚C for CSP systems. The approach uses high thermal conductivity and high-porosity graphite foams infiltrated with a phase change material (PCM) to provide TES in the form of latent heat.

45

Similarity and generalized analysis of efficiencies of thermal energy storage systems  

SciTech Connect

This paper examined the features of three typical thermal storage systems including: (1) direct storage of heat transfer fluid in containers, (2) storage of thermal energy in a packed bed of solid filler material, with energy being carried in/out by a flowing heat transfer fluid which directly contacts the packed bed, and (3) a system in which heat transfer fluid flows through tubes that are imbedded into a thermal storage material which may be solid, liquid, or a mixture of the two. The similarity of the three types of thermal storage systems was discussed, and generalized energy storage governing equations were introduced in both dimensional and dimensionless forms. The temperatures of the heat transfer fluid during energy charge and discharge processes and the overall energy storage efficiencies were studied through solution of the energy storage governing equations. Finally, provided in the paper are a series of generalized charts bearing curves for energy storage effectiveness against four dimensionless parameters grouped up from many of the thermal storage system properties including dimensions, fluid and thermal storage material properties, as well as the operational conditions including mass flow rate of the fluid, and the ratio of energy charge and discharge time periods. Engineers can conveniently look up the charts to design and calibrate the size of thermal storage tanks and operational conditions without doing complicated individual modeling and computations. It is expected that the charts will serve as standard tools for thermal storage system design and calibration.

Peiwen Li; Jon Van Lew; Cholik Chan; Wafaa Karaki; Jake Stephens; J. E. O'Brien

2012-03-01T23:59:59.000Z

46

Yankee hood performance studies; The effect of air balance on thermal efficiency  

Science Conference Proceedings (OSTI)

With today's ever-increasing production rates on tissue-grade machines, many mills experience a need to increase the contribution of Yankee hoods to drying. Until the cylinder is replaced, its contribution to drying is fixed at its maximum drying rate. Consequently, the hoods should be checked routinely to ensure that they run optimally. Most air systems are not gas-or oil-fired, in contrast to the original steam-heated designs. As a result, Yankee air systems are energy intensive. A proper hood balance ensures minimum thermal consumption, or optimum thermal efficiency. Thermal efficiency is defined as the Btu's consumed by the burner per pound of water evaporated by hood. A simple engineering survey, or system examination, allows the papermaker to verify hood performance and balance the air system. In this paper typical data from a such a survey are shown. These surveys can often lead to considerably savings in burner fuel.

Schukov, V. (Yankee Air Systems (US)); Wozny, J. (Enerquin Air Inc., Montreal, Quebec (CA))

1991-04-01T23:59:59.000Z

47

Field Analysis of Thermal Comfort in Two Energy Efficient Office Buildings in Malaysia  

E-Print Network (OSTI)

In recent years, there has been a growing interest to include passive concepts in buildings as a design strategy for achieving energy efficiency and optimum indoor thermal comfort in workspace as well. The paper attempts to evaluate the effectiveness of tropical passive solar control components in integrating thermal comfort with energy efficiency in office building. Field measurements are carried out in selected workspace of two office buildings that have been practiced the passive solar control. Solar radiation, air temperature, globe temperature, relative humidity and air velocity were measured for seven days including the non-working days, both indoors and outdoors for each building along with direct occupant's survey to compare the measurement and the votes of occupants under the same environment. The result shows that the thermal comfort parameters lie within the recommended comfort zone of Malaysian Standards with exception of an air movement in the workspace of both buildings. The result suggested workers' preferable condition.

Qahtan, A. T.; Keumala, N.; Rao, S. P.; Samad, Z. A.

2010-01-01T23:59:59.000Z

48

Thermal Barrier Coatings for Low Emission, High Efficiency Diesel Engine Applications  

DOE Green Energy (OSTI)

Thermal efficiencies of 54% have been demonstrated by single cylinder engine testing of advanced diesel engine concepts developed under Department of Energy funding. In order for these concept engines to be commercially viable, cost effective and durable systems for insulating the piston, head, ports and exhaust manifolds will be required. The application and development of new materials such as thick thermal barrier coating systems will be key to insulating these components. Development of test methods to rapidly evaluate the durability of coating systems without expensive engine testing is a major objective of current work. In addition, a novel, low cost method for producing thermal barrier coated pistons without final machining of the coating has been developed.

M. B. Beardsley; P. G. Happoldt; K.C. Kelley; E. F. Rejda; D. F. Socie

1999-04-26T23:59:59.000Z

49

A method to determine stratification efficiency of thermal energy storage processes independently from storage heat losses  

Science Conference Proceedings (OSTI)

A new method for the calculation of a stratification efficiency of thermal energy storages based on the second law of thermodynamics is presented. The biasing influence of heat losses is studied theoretically and experimentally. Theoretically, it does not make a difference if the stratification efficiency is calculated based on entropy balances or based on exergy balances. In practice, however, exergy balances are less affected by measurement uncertainties, whereas entropy balances can not be recommended if measurement uncertainties are not corrected in a way that the energy balance of the storage process is in agreement with the first law of thermodynamics. A comparison of the stratification efficiencies obtained from experimental results of charging, standby, and discharging processes gives meaningful insights into the different mixing behaviors of a storage tank that is charged and discharged directly, and a tank-in-tank system whose outer tank is charged and the inner tank is discharged thereafter. The new method has a great potential for the comparison of the stratification efficiencies of thermal energy storages and storage components such as stratifying devices. (author)

Haller, Michel Y.; Streicher, Wolfgang [Institute of Thermal Engineering, Graz University of Technology, Inffeldgasse 25/B, 8010 Graz (Austria); Yazdanshenas, Eshagh; Andersen, Elsa; Furbo, Simon [Department of Civil Engineering, Technical University of Denmark, Brovej, Building 118, DK-2800, Kgs. Lyngby (Denmark); Bales, Chris [Solar Energy Research Center SERC, Hoegskolan Dalarna, 781 88 Borlaenge (Sweden)

2010-06-15T23:59:59.000Z

50

Rapid thermal processing of high-efficiency silicon solar cells with controlled in-situ annealing  

DOE Green Energy (OSTI)

Silicon solar cell efficiencies of 17.1%, 16.4%, 14.8%, and 14.9% have been achieved on FZ, Cz, multicrystalline (mc-Si), and dendritic web (DW) silicon, respectively, using simplified, cost-effective rapid thermal processing (RTP). These represent the highest reported efficiencies for solar cells processed with simultaneous front and back diffusion with no conventional high-temperature furnace steps. Appropriate diffusion temperature coupled with the added in-situ anneal resulted in suitable minority-carrier lifetime and diffusion profiles for high-efficiency cells. The cooling rate associated with the in-situ anneal can improve the lifetime and lower the reverse saturation current density (J{sub 0}), however, this effect is material and base resistivity specific. PECVD antireflection (AR) coatings provided low reflectance and efficient front surface and bulk defect passivation. Conventional cells fabricated on FZ silicon by furnace diffusions and oxidations gave an efficiency of 18.8% due to greater short wavelength response and lower J{sub 0}.

Doshi, P.; Rohatgi, A.; Ropp, M.; Chen, Z. [Georgia Institute of Technology, Atlanta, GA (United States). Univ. Center of Excellence for Photovoltaics Research and Education; Ruby, D. [Sandia National Labs., Albuquerque, NM (United States); Meier, D.L. [EBARA Solar, Inc., Large, PA (United States)

1995-01-01T23:59:59.000Z

51

Advanced Organic Vapor Cycles for Improving Thermal Conversion Efficiency in Renewable Energy Systems  

E-Print Network (OSTI)

reclamation and solar thermal energy," Energy [accepted]. [and M Dennis, "Solar thermal energy systems in Australia,"and M Dennis, "Solar thermal energy systems in Australia,"

Ho, Tony

2012-01-01T23:59:59.000Z

52

Advanced Organic Vapor Cycles for Improving Thermal Conversion Efficiency in Renewable Energy Systems  

E-Print Network (OSTI)

energy conversion systems ..on thermal energy conversion systems As energy demandsefficient energy conversion in power systems," in Thermal

Ho, Tony

2012-01-01T23:59:59.000Z

53

Test results of a steam injected gas turbine to increase power and thermal efficiency  

Science Conference Proceedings (OSTI)

The desire to increase both power and thermal efficiency of the gas turbine (Brayton cycle) engine has been pursued for a number of years and has involved many approaches. The use of steam in the cycle to improve performance has been proposed by various investigators. This was most recently proposed by International Power Technology, Inc. (IPT) and has been tested by Detroit Diesel Allison (DDA), Division of General Motors. This approach, identified as the Cheng dual-fluid cycle (Cheng/DFC), includes the generation of steam using heat from the exhaust, and injecting this steam into the engine combustion chamber. Test results on an Allison 501-KB engine have demonstrated that use of this concept will increase the thermal efficiency of the engine by 30% and the output power by 60% with no increase in turbine inlet temperature. These results will be discussed, as will the impact of steam rate, location of steam injection, turbine temperature, and engine operational characteristics on the performance of the Cheng/DFC.

Messerlie, R.L.; Tischler, A.O.

1983-08-01T23:59:59.000Z

54

Thick Thermal Barrier Coatings (TTBCs) for Low Emission, High Efficiency Diesel Engine Components  

SciTech Connect

The objective of this program was to advance the fundamental understanding of thick thermal barrier coating (TTBC) systems for application to low heat rejection diesel engine combustion chambers. Previous reviews of thermal barrier coating technology concluded that the current level of understanding of coating system behavior is inadequate and the lack of fundamental understanding may impede the application of thermal barrier coating to diesel engines.(1) Areas of TTBC technology examined in this program include powder characteristics and chemistry; bond coating composition, coating design, microstructure and thickness as they affect properties, durability, and reliability; and TTBC "aging" effects (microstructural and property changes) under diesel engine operating conditions. Fifteen TTBC ceramic powders were evaluated. These powders were selected to investigate the effects of different chemistries, different manufacturing methods, lot-to-lot variations, different suppliers and varying impurity levels. Each of the fifteen materials has been sprayed using 36 parameters selected by a design of experiments (DOE) to determine the effects of primary gas (Ar and N2), primary gas flow rate, voltage, arc current, powder feed rate, carrier gas flow rate, and spraying distance. The deposition efficiency, density, and thermal conductivity of the resulting coatings were measured. A coating with a high deposition efficiency and low thermal conductivity is desired from an economic standpoint. An optimum combination of thermal conductivity and disposition efficiency was found for each lot of powder in follow-on experiments and disposition parameters were chosen for full characterization.(2) Strengths of the optimized coatings were determined using 4-point bending specimens. The tensile strength was determined using free-standing coatings made by spraying onto mild steel substrates which were subsequently removed by chemical etching. The compressive strengths of the coatings were determined using composite specimens of ceramic coated onto stainless steel substrates, tested with the coating in compression and the steel in tension. The strength of the coating was determined from an elastic bi-material analysis of the resulting failure of the coating in compression.(3) Altough initial comparisons of the materials would appear to be straight forward from these results, the results of the aging tests of the materials are necessary to insure that trends in properties remain after long term exposure to a diesel environment. Some comparisons can be made, such as the comparison between for lot-to-lot variation. An axial fatigue test to determine the high cycle fatigue behavior of TTBCs was developed at the University of Illinois under funding from this program.(4) A fatigue test apparatus has been designed and initial work performed which demonstrates the ability to provide a routine method of axial testing of coating. The test fixture replaces the normal load frame and fixtures used to transmit the hydraulic oil loading to the sample with the TTBC specimen itself. The TTBC specimen is a composite metal/coating with stainless steel ends. The coating is sprayed onto a mild steel center tube section onto which the stainless steel ends are press fit. The specimen is then machined. After machining, the specimen is placed in an acid bath which etches the mild steel away leaving the TTBC attached to the the stainless steel ends. Plugs are then installed in the ends and the composite specimen loaded in the test fixture where the hydraulic oil pressurizes each end to apply the load. Since oil transmits the load, bending loads are minimized. This test fixture has been modified to allow piston ends to be attached to the specimen which allows tensile loading as well as compressive loading of the specimen. In addition to the room temperature data, specimens have been tested at 800 Degrees C with the surprising result that at high temperature, the TTBC exhibits much higher fatigue strength. Testing of the TTBC using tension/compression cycling has been con

M. Brad Beardsley, Caterpillar Inc.; Dr. Darrell Socie, University of Illinois; Dr. Ed Redja, University of Illinois; Dr. Christopher Berndt, State University of New York at Stony Brook

2006-03-02T23:59:59.000Z

55

EFFECT OF ELECTROLYZER CONFIGURATION AND PERFORMANCE ON HYBRID SULFUR PROCESS NET THERMAL EFFICIENCY  

DOE Green Energy (OSTI)

Hybrid Sulfur cycle is gaining popularity as a possible means for massive production of hydrogen from nuclear energy. Several different ways of carrying out the SO{sub 2}-depolarized electrolysis step are being pursued by a number of researchers. These alternatives are evaluated with complete flowsheet simulations and on a common design basis using Aspen Plus{trademark}. Sensitivity analyses are performed to assess the performance potential of each configuration, and the flowsheets are optimized for energy recovery. Net thermal efficiencies are calculated for the best set of operating conditions for each flowsheet and the results compared. This will help focus attention on the most promising electrolysis alternatives. The sensitivity analyses should also help identify those features that offer the greatest potential for improvement.

Gorensek, M

2007-03-16T23:59:59.000Z

56

On the global economic potentials and marginal costs of non-renewable resources and the price dynamics of energy commodities  

E-Print Network (OSTI)

A model is presented in this work for simulating endogenously the evolution of the marginal costs of production of energy carriers from non-renewable resources, their consumption, depletion pathways and timescales. Such marginal costs can be used to simulate the long term average price formation of energy commodities. Drawing on previous work where a global database of energy resource economic potentials was constructed, this work uses cost distributions of non-renewable resources in order to evaluate global flows of energy commodities. A mathematical framework is given to calculate endogenous flows of energy resources given an exogenous commodity price path. This framework can be used in reverse in order to calculate an exogenous marginal cost of production of energy carriers given an exogenous carrier demand. Using rigid price inelastic assumptions independent of the economy, these two approaches generate limiting scenarios that depict extreme use of natural resources. This is useful to characterise the cur...

Mercure, Jean-Francois

2013-01-01T23:59:59.000Z

57

An efficient modeling method for thermal stratification simulation in a BWR suppression pool  

SciTech Connect

The suppression pool in a BWR plant not only is the major heat sink within the containment system, but also provides major emergency cooling water for the reactor core. In several accident scenarios, such as LOCA and extended station blackout, thermal stratification tends to form in the pool after the initial rapid venting stage. Accurately predicting the pool stratification phenomenon is important because it affects the peak containment pressure; and the pool temperature distribution also affects the NPSHa (Available Net Positive Suction Head) and therefore the performance of the pump which draws cooling water back to the core. Current safety analysis codes use 0-D lumped parameter methods to calculate the energy and mass balance in the pool and therefore have large uncertainty in prediction of scenarios in which stratification and mixing are important. While 3-D CFD methods can be used to analyze realistic 3D configurations, these methods normally require very fine grid resolution to resolve thin substructures such as jets and wall boundaries, therefore long simulation time. For mixing in stably stratified large enclosures, the BMIX++ code has been developed to implement a highly efficient analysis method for stratification where the ambient fluid volume is represented by 1-D transient partial differential equations and substructures such as free or wall jets are modeled with 1-D integral models. This allows very large reductions in computational effort compared to 3-D CFD modeling. The POOLEX experiments at Finland, which was designed to study phenomena relevant to Nordic design BWR suppression pool including thermal stratification and mixing, are used for validation. GOTHIC lumped parameter models are used to obtain boundary conditions for BMIX++ code and CFD simulations. Comparison between the BMIX++, GOTHIC, and CFD calculations against the POOLEX experimental data is discussed in detail.

Haihua Zhao; Ling Zou; Hongbin Zhang; Hua Li; Walter Villanueva; Pavel Kudinov

2012-09-01T23:59:59.000Z

58

Efficient Low-Lift cooling with Radiant Distribution, Thermal Storage and Variable-Speed Chiller Controls  

DOE Green Energy (OSTI)

The U.S. Department of Energys Building Technologies Program goal is to develop cost-effective technologies and building practices that will enable the design and construction of net-zero energy buildings by 2025. To support this goal, Pacific Northwest National Laboratory evaluated an integrated technology that through utilization of synergies between emerging heating, ventilation and air conditioning systems can significantly reduce energy consumption in buildings. This set consists of thermal storage, dedicated outdoor air system, radiant heating/cooling with a variable speed low-lift-optimized vapor compression system. The results show that the low-lift cooling system provides significant energy savings in many building types and climates locations. This market represents well over half of the entire U.S. commercial building sector. This analysis shows that significant cooling system efficiency gains can be achieved by integrating low-lift cooling technologies. The cooling energy savings for a standard-performance building range from 37% to 84% and, for a high-performance building, from -9% to 70%.

Katipamula, Srinivas; Armstrong, Peter; Wang, Weimin; Fernandez, Nicholas

2010-05-31T23:59:59.000Z

59

Thermal Efficiency Optimization for Industrial Power Plants Under Load Fluctuations Using Fuzzy Logic  

E-Print Network (OSTI)

The automation of the control to a power plant is indeed a challenge mainly because of the occurrences of random and unpredictable variations in output demands as well as because of highly non-linear behavior of the system itself. It is sometimes argued that the 'best' control for a power plant is the operators themselves. Experienced operators are capable of making decisions on the basis of incomplete and imprecise information. The extent to which these decisions are correct is a matter of speculation. Erroneous conclusions, established post facto, are chalked up to the learning process and in fact, contribute to the forming of a good, experienced control team. The need to automate the control process for a plant is even more acutely felt when considering the complexity of the plants themselves and the volume of data that would have to be processed before a control decision can be taken. Factored into this decision would also be several governing parameters such as costs, reliability, other constraints and their interdependency, as well as planned and unscheduled outages for maintenance and so on. In this paper, however, only one facet of a power plant operation is considered. It is intended to demonstrate that thermal efficiency may be improved by better techniques for automated control of throttle valves in the steam turbine of the plant. One of these options, fuzzy logic, is selected, and defended, as being the more effective than current approaches. A comparative analysis is conducted of control methods for plant operations followed by a brief overview of fuzzy control and its application to control of non-linear systems. A method of applying this 'new' computer-based technique to control of non-linear, somewhat erratic plants is presented and discussed.

Steffenhagan, W.; de Sam Lazaro, A.

1995-04-01T23:59:59.000Z

60

Advanced thermal insulation for energy efficient buildings : structural performance of aerogel composite panels  

E-Print Network (OSTI)

Aerogels are well known as exceptional thermal insulators. Thermal conductivities of 9 to 10 mW/m.K have been achieved at atmospheric pressure, and a moderate vacuum (between 1/3 and 1/10 of an atmosphere) can lower this ...

Goutierre, Thomas

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Thermal hydraulic design of a salt-cooled highly efficient environmentally friendly reactor  

E-Print Network (OSTI)

A 1 OOOMWth liquid-salt cooled thermal spectrum reactor was designed with a long fuel cycle, and high core exit temperature. These features are desirable in a reactor designed to provide process heat applications such as ...

Whitman, Joshua (Joshua J.)

2009-01-01T23:59:59.000Z

62

Advanced Organic Vapor Cycles for Improving Thermal Conversion Efficiency in Renewable Energy Systems  

E-Print Network (OSTI)

c,e Low-Intermediate Gas turbine exhaust, boiler exhaust,cycles for micro-gas turbines," Applied Thermal Engineering,Tiba, "Optimization of gas-turbine combined cycles for solar

Ho, Tony

2012-01-01T23:59:59.000Z

63

Efficient Heat Storage Materials: Metallic Composites Phase-Change Materials for High-Temperature Thermal Energy Storage  

SciTech Connect

HEATS Project: MIT is developing efficient heat storage materials for use in solar and nuclear power plants. Heat storage materials are critical to the energy storage process. In solar thermal storage systems, heat can be stored in these materials during the day and released at nightwhen the suns not outto drive a turbine and produce electricity. In nuclear storage systems, heat can be stored in these materials at night and released to produce electricity during daytime peak-demand hours. MIT is designing nanostructured heat storage materials that can store a large amount of heat per unit mass and volume. To do this, MIT is using phase change materials, which absorb a large amount of latent heat to melt from solid to liquid. MITs heat storage materials are designed to melt at high temperatures and conduct heat wellthis makes them efficient at storing and releasing heat and enhances the overall efficiency of the thermal storage and energy-generation process. MITs low-cost heat storage materials also have a long life cycle, which further enhances their efficiency.

None

2011-11-21T23:59:59.000Z

64

Thermal efficiency standards and codes. Volume 2. Relationships of ASHRAE standards and external factors to energy efficient building practices in new homes  

Science Conference Proceedings (OSTI)

Available data on 1976 and 1979 new home construction practices were used to develop measures of average building practice for each of the 48 contiguous states. Four possible views of the function and purpose of building energy standards and codes were posited and used to guide the search for relationships between building practice and building energy codes and standards implemented by the states. It was found that the average thermal efficiency of new single family homes improved from 1976 to 1979 in each of the 48 states. It was observed that by 1979 the average thermal efficiency of new homes in each of the 48 states exceeded American Society of Heating, Refrigerating and Air Conditioning Engineers Standard 90-75 (ASHRAE 90). However, in all states, there were substantial numbers of new homes which did not meet the Standard. By January 1, 1979, 23 states had some type of applicable building energy code or standard in effect; 11 of these had state-wide mandatory codes. All codes and standards were either identical to or very similar to the ASHRAE Standard 90-75 in their building shell requirements. A search for statistical evidence of a relationship between state building code activities and building practice was performed. Three marginally significant relationships were found by analysis of variance; however, these relationships were not significant in regression equations with socio-economic variables present. The conclusion here is that the effects of state building code actions on building practices were not detectable by the statistical methods used.

McCold, L.N.; Collins, N.E.; Zuschneid, P.B.; Hofstra, R.B.

1984-02-01T23:59:59.000Z

65

Investigating The Impact Of Thermal Mass Towards Energy Efficient Housing In Canada.  

E-Print Network (OSTI)

??The building industry is striving for environmental friendly and energy efficient facility developments, as we have used most of our natural resources for comfortable living. (more)

Ahmed, Tasnuva

2012-01-01T23:59:59.000Z

66

Efficient power modeling and software thermal sensing for runtime temperature monitoring  

Science Conference Proceedings (OSTI)

The evolution of microprocessors has been hindered by increasing power consumption and heat dissipation on die. An excessive amount of heat creates reliability problems, reduces the lifetime of a processor, and elevates the cost of cooling and packaging ... Keywords: Power, thermal

Wei Wu; Lingling Jin; Jun Yang; Pu Liu; Sheldon X.-D. Tan

2007-08-01T23:59:59.000Z

67

Integrated system for control and monitoring in real time of efficient electrical and thermal energy production  

Science Conference Proceedings (OSTI)

The integrated monitoring and driving system is made of main distributed components: - first level:_one or two computers placed in the control room which monitors the thermal and electrical processes based on the datas provided by the second level via ... Keywords: cogenerative gas power plant, control of distributed parameter systems, distribution management system, electric power systems, optimization, process control, real time systems, simulation

Ion Miciu; Florin Hartescu

2008-08-01T23:59:59.000Z

68

Electric co-heating in the ASHRAE standard method of test for thermal distribution efficiency: Test results on two New York State homes  

SciTech Connect

Electric co-heating tests on two single-family homes with forced-air heating systems were carried out in March 1995. The goal of these tests was to evaluate procedures being considered for incorporation in a Standard Method of Test for thermal distribution system efficiency now being developed by ASHRAE. Thermal distribution systems are the ductwork, piping, or other means used to transport heat or cooling effect from the building equipment that produces this thermal energy to the spaces in which it is used. Furthering the project goal, the first objective of the tests was to evaluate electric co-heating as a means of measuring system efficiency. The second objective was to investigate procedures for obtaining the distribution efficiency, using system efficiency as a base. Distribution efficiencies of 0.63 and 0.70 were obtained for the two houses.

Andrews, J.W.; Krajewski, R.F.; Strasser, J.J.

1995-10-01T23:59:59.000Z

69

Beryllium Impregnation of Uranium Fuel: Thermal Modeling of Cylindrical Objects for Efficiency Evaluation  

E-Print Network (OSTI)

With active research projects related to nuclear waste immobilization and high conductivity nuclear fuels, a thermal model has been developed to simulate the temperature profile within a heat generating cylinder in order to imitate the behavior of each design. This work is being done so that it may be used in future research projects to represent how heat is being stored or dissipated in a material that has a uniformly distributed heat source from fission or radiation deposition. The model has been built to have a 2-D visual representation of the temperature distribution. A nodal system is employed for this model so that the user chooses the size of the mesh that will develop an accurate reading for their purposes. The model uses fundamental heat transfer equations and heat conduction properties for different metals. The heat transfer equations that will be used are fundamental and used at each point in the mesh developed by the user to ensure accuracy of the calculation. Below is such an example of an equation that will be used to model the temperature distribution in the cylindrical samples. By choosing the thermal properties associated with the material that is being researched, certain parameters are imposed in the equations automatically. This provides an easy method to see changes in the temperature distribution due to the improvements that have been made. Such parameters are the thermal conductivity and the thermal diffusivity along with others such as the material specific heat. The model will incorporate color variations in the display in order to allow larger meshes to be used while not diminishing the appearance of the results. The color variation will be due to a gradient from red to blue to represent hot to cold.

Lynn, Nicholas

2011-08-04T23:59:59.000Z

70

Writing Motor Specifications - How to Include Efficiency  

E-Print Network (OSTI)

The escalating cost of electric power coupled with the rapid depletion of our non-renewable resources makes consideration of motor efficiency good sense both from economic and conservation viewpoints. The efficiency of an electric motor can be assessed during bid evaluation by applying loss penalties: however, the actual value can be influenced at an earlier stage by a careful review of what goes into the motor specification.

Quartermaine, B. J.

1980-01-01T23:59:59.000Z

71

Thermal influence indices: Causality metrics for efficient exploration of data center cooling  

Science Conference Proceedings (OSTI)

Cooling is an important issue in data center design and operation. Accurate evaluation of a design or operational parameter choice for cooling is difficult as it requires several runs of computationally intensive Computational Fluid Dynamics (CFD) based ... Keywords: Computational Fluid Dynamics (CFD),Data center,Efficient cooling

Harshad Bhagwat; Amarendra Singh; Arunchandar Vasan; Anand Sivasubramaniam

2012-06-01T23:59:59.000Z

72

Demo: A robot-in-residence for data center thermal monitoring and energy efficiency management  

Science Conference Proceedings (OSTI)

We will demonstrate a robot for data center energy management, in action, on a simulated data center floor. We shall highlight the robot's navigation, tile and obstacle classification, event scheduling and preemption capabilities, along with its ability ... Keywords: data center, energy efficiency, robot

Kevin Deland; Jonathan Lenchner; John Nelson; Jonathan Connell; James Thoensen; Jeffrey O. Kephart

2011-11-01T23:59:59.000Z

73

Contribution of nano-scale effects to the total efficiency of converters of thermal neutrons on the basis of gadolinium foils  

E-Print Network (OSTI)

We study the influence of nano-scale layers of converters made from natural gadolinium and its 157 isotope into the total efficiency of registration of thermal neutrons. Our estimations show that contribution of low-energy Auger electrons with the runs about nanometers in gadolinium, to the total efficiency of neutron converters in this case is essential and results in growth of the total efficiency of converters. The received results are in good consent to the experimental data.

D. A. Abdushukurov; D. V. Bondarenko; Kh. Kh. Muminov; D. Yu. Chistyakov

2008-02-04T23:59:59.000Z

74

ENERGY EFFICIENT THERMAL MANAGEMENT FOR NATURAL GAS ENGINE AFTERTREATMENT VIA ACTIVE FLOW CONTROL  

Science Conference Proceedings (OSTI)

The project is focused on the development of an energy efficient aftertreatment system capable of reducing NOx and methane by 90% from lean-burn natural gas engines by applying active exhaust flow control. Compared to conventional passive flow-through reactors, the proposed scheme cuts supplemental energy by 50%-70%. The system consists of a Lean NOx Trap (LNT) system and an oxidation catalyst. Through alternating flow control, a major amount of engine exhaust flows through a large portion of the LNT system in the absorption mode, while a small amount of exhaust goes through a small portion of the LNT system in the regeneration or desulfurization mode. By periodically reversing the exhaust gas flow through the oxidation catalyst, a higher temperature profile is maintained in the catalyst bed resulting in greater efficiency of the oxidation catalyst at lower exhaust temperatures. The project involves conceptual design, theoretical analysis, computer simulation, prototype fabrication, and empirical studies. This report details the progress during the first twelve months of the project. The primary activities have been to develop the bench flow reactor system, develop the computer simulation and modeling of the reverse-flow oxidation catalyst, install the engine into the test cell, and begin design of the LNT system.

David K. Irick; Ke Nguyen

2004-04-01T23:59:59.000Z

75

Energy Efficient Thermal Management for Natural Gas Engine Aftertreatment via Active Flow Control  

SciTech Connect

The project is focused on the development of an energy efficient aftertreatment system capable of reducing NOx and methane by 90% from lean-burn natural gas engines by applying active exhaust flow control. Compared to conventional passive flow-through reactors, the proposed scheme cuts supplemental energy by 50%-70%. The system consists of a Lean NOx Trap (LNT) system and an oxidation catalyst. Through alternating flow control, a major amount of engine exhaust flows through a large portion of the LNT system in the absorption mode, while a small amount of exhaust goes through a small portion of the LNT system in the regeneration or desulfurization mode. By periodically reversing the exhaust gas flow through the oxidation catalyst, a higher temperature profile is maintained in the catalyst bed resulting in greater efficiency of the oxidation catalyst at lower exhaust temperatures. The project involves conceptual design, theoretical analysis, computer simulation, prototype fabrication, and empirical studies. This report details the progress during the first twelve months of the project. The primary activities have been to develop the bench flow reactor system, develop the computer simulation and modeling of the reverse-flow oxidation catalyst, install the engine into the test cell, and begin design of the LNT system.

David K. Irick; Ke Nguyen; Vitacheslav Naoumov; Doug Ferguson

2006-04-01T23:59:59.000Z

76

Energy Efficient Thermal Management for Natural Gas Engine Aftertreatment via Active Flow Control  

SciTech Connect

The project is focused on the development of an energy efficient aftertreatment system capable of reducing NOx and methane by 90% from lean-burn natural gas engines by applying active exhaust flow control. Compared to conventional passive flow-through reactors, the proposed scheme cuts supplemental energy by 50%-70%. The system consists of a Lean NOx Trap (LNT) system and an oxidation catalyst. Through alternating flow control, a major amount of engine exhaust flows through a large portion of the LNT system in the absorption mode, while a small amount of exhaust goes through a small portion of the LNT system in the regeneration or desulfurization mode. By periodically reversing the exhaust gas flow through the oxidation catalyst, a higher temperature profile is maintained in the catalyst bed resulting in greater efficiency of the oxidation catalyst at lower exhaust temperatures. The project involves conceptual design, theoretical analysis, computer simulation, prototype fabrication, and empirical studies. This report details the progress during the first twelve months of the project. The primary activities have been to develop the bench flow reactor system, develop the computer simulation and modeling of the reverse-flow oxidation catalyst, install the engine into the test cell, and begin design of the LNT system.

David K. Irick; Ke Nguyen; Vitacheslav Naoumov; Doug Ferguson

2005-04-01T23:59:59.000Z

77

An energy efficient clustering protocol for routing in Wireless Sensor Network  

Science Conference Proceedings (OSTI)

In Wireless Sensor Network (WSN), the power supply is generally a non-renewable battery, consequently, energy effectiveness is a crucial factor. To maximise the battery life and therefore the duration of network service, a robust wireless ... Keywords: WSNs, battery life, dynamic clustering, energy efficiency, energy efficient clustering, network lifetime, simulation, wireless communications, wireless networks, wireless sensor networks

Ouadoudi Zytoune; Mohamed El Aroussi; Driss Aboutajdine

2011-12-01T23:59:59.000Z

78

Putting downward pressure on natural gas prices: The impact of renewable energy and energy efficiency  

E-Print Network (OSTI)

estimates for other non-renewable energy commodities, namelynatural gas and other non-renewable energy commodities is

Wiser, Ryan; Bolinger, Mark; St. Clair, Matthew

2004-01-01T23:59:59.000Z

79

Isotope ratio analysis of actinides, fission products, and geolocators by high-efficiency multi-collector thermal ionization mass spectrometry  

SciTech Connect

A ThermoFisher 'Triton' multi-collector thermal ionization mass spectrometer (MC-TIMS) was evaluated for trace and ultra-trace level isotoperatioanalysis of actinides (uranium, plutonium, and americium), fission products and geolocators (strontium, cesium, and neodymium). Total efficiencies (atoms loaded to ions detected) of up to 0.5-2% for U, Pu, and Am, and 1-30% for Sr, Cs, and Nd can be reported employing resin bead load techniques onto flat ribbon Re filaments or resin beads loaded into a millimeter-sized cavity drilled into a Re rod. This results in detection limits of <0.1 fg (10{sup 4} atoms to 10{sup 5} atoms) for {sup 239-242+244}Pu, {sup 233+236}U, {sup 241-243}Am, {sup 89,90}Sr, and {sup 134,135,137}Cs, and {le} 1 pg for natural Nd isotopes (limited by the chemical processing blank) using a secondary electron multiplier (SEM) or multiple-ion counters (MICs). Relative standard deviations (RSD) as small as 0.1% and abundance sensitivities of 1 x 10{sup 6} or better using a SEM are reported here. Precisions of RSD {approx} 0.01-0.001% using a multi-collector Faraday cup array can be achieved at sub-nanogram concentrations for strontium and neodymium and are suitable to gain crucial geolocation information. The analytical protocols reported herein are of particular value for nuclear forensic and nuclear safeguard applications.

Brger, Stefan [New Brunswick Laboratory, Argonne, IL; Riciputi, Lee R [Los Alamos National Laboratory (LANL); Bostick, Debra A [ORNL; Turgeon, Steven [University of Alberta, Edmondton, Canada; McBay, Eddie H [ORNL; Lavelle, Mark [ORNL

2009-01-01T23:59:59.000Z

80

Working fluid selection for an increased efficiency hybridized geothermal-solar thermal power plant in Newcastle, Utah.  

E-Print Network (OSTI)

??Renewable sources of energy are of extreme importance to reduce greenhouse gas emissions from traditional power plants. Such renewable sources include geothermal and solar thermal (more)

Carnell, John Walter

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

MONITORING POWER PLANT EFFICIENCY USING THE MICROWAVE-EXCITED THERMAL-ACOUSTIC EFFECT TO MEASURE UNBURNED CARBON  

Science Conference Proceedings (OSTI)

The objective of this project is to explore microwave-excited thermal-acoustic (META) phenomena for quantitative analysis of granular and powdered materials, with the culmination of the research to be an on-line carbon-in-ash monitor for coal-fired power plants. This technique of analyzing unburned carbon in fly ash could be a less tedious and time consuming method as compared to the traditional LOI manual procedure. Phase 1 of the research focused on off-line single-frequency thermal-acoustic measurements where an off-line fly ash monitor was constructed that could operate as analytical tool to explore instrument and methodology parameters for quantifying the microwave-excited thermal-acoustic effect of carbon in fly ash, and it was determined that the off-line thermal-acoustic technique could predict the carbon content of a random collection of fly ashes with a linear correlation constant of R{sup 2} = 0.778. Much higher correlations are expected for fly ashes generated from a single boiler. Phase 2 of the research developing a methodology to generate microwave spectra of various powders, including fly ash, coal, and inorganic minerals, and to determine if these microwave spectra could be used for chemical analyses. Although different minerals produced different responses, higher resolution microwave spectra would be required to be able to distinguish among minerals. Phase 3 of the research focused on the development of an on-line fly ash monitor that could be adapted to measure either a thermal-acoustic or thermal-elastic response to due microwave excitation of fly ash. The thermal-acoustic response was successfully employed for this purpose but the thermal-elastic response was too weak to yield a useful on-line device.

Robert C. Brown; Robert J. Weber; Jeffrey J. Swetelitsch

2005-01-01T23:59:59.000Z

82

Practical Solar Thermal Chilled Water  

E-Print Network (OSTI)

With the pressing need for the United States to reduce our dependence upon fossil fuels, it has become a national priority to develop technologies that allow practical use of renewable energy sources. One such energy source is sunlight. It has the potential to impact America's use of non-renewable energy beyond its own design capacity by applying it to the optimization of an existing building's system. Solar-thermal chilling systems are not new. However, few of them can be described as a practical success. The primary reason for these disappointments is a misunderstanding of solar energy dynamics by air conditioning designers; combined with a similar misunderstanding by solar engineers of how thermally driven chillers react to the loads and energy sources applied to them. With this in mind, a modeling tool has been developed which provides the flexibility to apply a strategy which can be termed, Optimization by Design.

Leavell, B.

2010-01-01T23:59:59.000Z

83

Energy Efficiency & Renewable Energy eere.energy.gov Program Name or Ancillary Text eere.energy.gov  

E-Print Network (OSTI)

Energy Efficiency & Renewable Energy eere.energy.gov 1 Program Name or Ancillary Text eereAnnualCapacityAdditions(GW) Other non-Renewable Coal Gas (non-CCGT) Gas (CCGT) Other Renewable Wind 43% wind 42% wind 34% wind18% wind 12% wind 2% wind 3% wind 1% wind 4% wind 0% wind 25% wind #12;WIND AND WATER POWER PROGRAM 8 China

84

An energy equivalency analysis of trade-offs between thermal efficiency and standby loss requirements for commercial gas service water heaters  

SciTech Connect

The American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE) Standing Standard Project Committee 90.1 has approved an addendum (90.lb) to ASHRAE/IES Standard 90.1-1989. The addendum specifies an increase in the minimum thermal efficiency requirement (from 77% to 78%), accompanied by an easing of the standby loss requirements, for commercial gas-fired service water heaters. The Pacific Northwest Laboratory performed an energy equivalency analysis to assess the impact of trade-offs between the improved thermal efficiency and the less stringent standby loss requirements. The analysis objective was to estimate whether the energy savings during firing would offset the increased energy losses during standby periods. The primary focus of this report is to summarize the major results of the analysis and provide a recommendation for minimum energy-efficiency commercial gas-fired service water heaters. Limitations to the availability of detailed performance and energy-use data for these commercial water heaters are also pointed out.

Somasundaram, S.; Jarnagin, R.E.; Keller, J.M.; Schliesing, J.S.

1992-06-01T23:59:59.000Z

85

Study of the design Method of an Efficient Ground Source Heat Pump Thermal Source System in a Cold Area  

E-Print Network (OSTI)

The ground source heat pump (GSHP) system-an energy efficiency and environment friendly system-is becoming popular in many parts of China. However, an imbalance usually exists between the annual heat extracted from and rejected to the ground due to the different heating and cooling load of a building, which will consistently deteriorate the heat pump efficiency leading even to the breakdown of the heat pump. This paper brings forward a design method of adding supplemental heat rejection equipment, a cooling tower, in the system to solve the problem in a cold area. Taking an office building in Beijing as an example, the authors simulate the GSHP system with two different connection methods between the cooling tower and vertical buried-pipe heat exchangers (in series and in parallel) using TRNSYS simulation software, and put forward several design schemes that can ensure the whole system continually operates with high efficiency. This also makes it possible to perform a more detailed economic optimization of the GSHP-based system in the future.

Shu, H.; Duanmu, L.; Hua, R.; Zou, Y.; Du, G.

2006-01-01T23:59:59.000Z

86

THREE-DIMENSIONAL SIMULATIONS OF THE THERMAL X-RAY EMISSION FROM YOUNG SUPERNOVA REMNANTS INCLUDING EFFICIENT PARTICLE ACCELERATION  

Science Conference Proceedings (OSTI)

Supernova remnants (SNRs) are believed to be the major contributors to Galactic cosmic rays. The detection of non-thermal emission from SNRs demonstrates the presence of energetic particles, but direct signatures of protons and other ions remain elusive. If these particles receive a sizeable fraction of the explosion energy, the morphological and spectral evolution of the SNR must be modified. To assess this, we run three-dimensional hydrodynamic simulations of a remnant coupled with a nonlinear acceleration model. We obtain the time-dependent evolution of the shocked structure, impacted by the Rayleigh-Taylor hydrodynamic instabilities at the contact discontinuity and by the back-reaction of particles at the forward shock. We then compute the progressive temperature equilibration and non-equilibrium ionization state of the plasma, and its thermal emission in each cell. This allows us to produce the first realistic synthetic maps of the projected X-ray emission from the SNR. Plasma conditions (temperature and ionization age) can vary widely over the projected surface of the SNR, especially between the ejecta and the ambient medium owing to their different composition. This demonstrates the need for spatially resolved spectroscopy. We find that the integrated emission is reduced with particle back-reaction, with the effect being more significant for the highest photon energies. Therefore, different energy bands, corresponding to different emitting elements, probe different levels of the impact of particle acceleration. Our work provides a framework for the interpretation of SNR observations with current X-ray missions (Chandra, XMM-Newton, and Suzaku) and with upcoming X-ray missions (such as Astro-H).

Ferrand, Gilles; Safi-Harb, Samar [Department of Physics and Astronomy, University of Manitoba, Winnipeg MB R3T 2N2 (Canada); Decourchelle, Anne, E-mail: gferrand@physics.umanitoba.ca, E-mail: samar@physics.umanitoba.ca, E-mail: anne.decourchelle@cea.fr [Laboratoire AIM (CEA/Irfu, CNRS/INSU, Universite Paris VII), CEA Saclay, bat. 709, F-91191 Gif sur Yvette (France)

2012-11-20T23:59:59.000Z

87

Analysis and Research on the Thermal Properties of Energy-efficient Building Glass: A Case Study in PVB Laminated Glass  

E-Print Network (OSTI)

A new kind of PVB-laminated glass is introduced as an energy-efficient building glass. Based on tests and calculations of the shading coefficients of flat glass, LOW-E coated glass and PVB-laminated glass with different thickness, their effects on room base temperature and cooling load of the residential buildings in the hot-summer-warm-winter zone are simulated and analyzed. Compared with flat glass, the PVB laminated glass shields 44 percent of the solar radiation from entering the room and reduces 40 percent of the shading coefficient. At the same time, 28 percent of the cooling load, 21 percent of installed capacity and 8.6 percent of full-load operation time can be saved.

Chen, Z.; Meng, Q.

2006-01-01T23:59:59.000Z

88

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network (OSTI)

on the Gross Thermal Efficiency of a Solar Power Plant .and Maintenance* - Net Thermal Efficiency of the Solar PowerMWe Net Thermal Efficiency of the Solar Power Plant,MWe-hr/

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

89

HEATS: Thermal Energy Storage  

SciTech Connect

HEATS Project: The 15 projects that make up ARPA-Es HEATS program, short for High Energy Advanced Thermal Storage, seek to develop revolutionary, cost-effective ways to store thermal energy. HEATS focuses on 3 specific areas: 1) developing high-temperature solar thermal energy storage capable of cost-effectively delivering electricity around the clock and thermal energy storage for nuclear power plants capable of cost-effectively meeting peak demand, 2) creating synthetic fuel efficiently from sunlight by converting sunlight into heat, and 3) using thermal energy storage to improve the driving range of electric vehicles (EVs) and also enable thermal management of internal combustion engine vehicles.

None

2012-01-01T23:59:59.000Z

90

The Application and Verification of ASHRAE 152-2004 (Method of Test for Determining the Design and Seasonal Efficiencies of Residential Thermal Distribution Systems) to DOE-2-1e Simulation Program  

E-Print Network (OSTI)

This report describes the application and verification of duct model on DOE 2.1e version 119 using ASHRAE 152-2004 (Method of Test for Determining the Design and Seasonal Efficiencies of Residential Thermal Distribution Systems). It begins with a concept of duct model which is developed by ASHRAE and shows the application and the verification of the duct model to DOE 2.1e version 119 simulation program.

Kim, S.; Haberl, J. S.

2008-06-01T23:59:59.000Z

91

Novel Ceramic Thermal Insulators Prepared by Gelation Freezing ...  

Science Conference Proceedings (OSTI)

Developing Thermal Processes with Energy Efficiency in Mind Development of Ceramic ... Improving the Efficiency of Solar Cells Integrating Ceramics and...

92

Multilayer Nanoscale Thermal Barrier Coatings  

Science Conference Proceedings (OSTI)

Advanced high-efficiency gas turbines require thermal barrier coatings (TBCs) with low thermal conductivity and excellent thermal-cycling resistance. The multilayer TBC developed in this project has a thermal conductivity about half that of conventional TBCs and also rejects up to 70 percent of incoming radiant energy.

1999-05-26T23:59:59.000Z

93

Czech Republic-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Czech Republic-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Czech Republic-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation

94

Efficient Low-Lift cooling with Radiant Distribution, Thermal Storage and Variable-Speed Chiller Controls Part II: Annual Energy Use and Savings  

DOE Green Energy (OSTI)

This paper evaluates the potential cooling efficiency improvements to be gained by integrating radiant cooling, cool storage, and variable-speed compressor and transport motor controls.

Armstrong, Peter; Jiang, Wei; Winiarski, David W.; Katipamula, Srinivas; Norford, L. K.

2009-03-31T23:59:59.000Z

95

Tanzania-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

Tanzania-Joint Programme on Resource Efficient and Cleaner Production Tanzania-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Tanzania-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

96

Ethiopia-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

Ethiopia-Joint Programme on Resource Efficient and Cleaner Production Ethiopia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Ethiopia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

97

Guatemala-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

Guatemala-Joint Programme on Resource Efficient and Cleaner Production Guatemala-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Guatemala-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

98

Honduras-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

Honduras-Joint Programme on Resource Efficient and Cleaner Production Honduras-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Honduras-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

99

Zimbabwe-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

Zimbabwe-Joint Programme on Resource Efficient and Cleaner Production Zimbabwe-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Zimbabwe-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

100

Mozambique-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

Mozambique-Joint Programme on Resource Efficient and Cleaner Production Mozambique-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Mozambique-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Joint Programme on Resource Efficient and Cleaner Production (RECP) in  

Open Energy Info (EERE)

Programme on Resource Efficient and Cleaner Production (RECP) in Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

102

Bulgaria-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

Bulgaria-Joint Programme on Resource Efficient and Cleaner Production Bulgaria-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Bulgaria-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

103

Cambodia-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

Cambodia-Joint Programme on Resource Efficient and Cleaner Production Cambodia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Cambodia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

104

Slovakia-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

Slovakia-Joint Programme on Resource Efficient and Cleaner Production Slovakia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Slovakia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

105

Colombia-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

Colombia-Joint Programme on Resource Efficient and Cleaner Production Colombia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Colombia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

106

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

Science Conference Proceedings (OSTI)

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

None

2011-12-05T23:59:59.000Z

107

Energy Efficiency Improvement and Cost Saving Opportunities for the Dairy Processing Industry  

E-Print Network (OSTI)

Efficiency (D-CREE) (2009). Case Study - Solar ThermalSolar thermal water preheating Backpressure turbines Table 5.4 Summary of efficiency

Brush, Adrian

2012-01-01T23:59:59.000Z

108

Complex Oxides for Highly Efficient Solid-State Energy ...  

Complex Oxides for Highly Efficient Solid-State Energy ... Using complex oxides to directly convert thermal to electrical energy is both ... Thermal P ...

109

Can Deployment of Renewable Energy and Energy Efficiency Put Downward Pressure on Natural Gas Prices  

E-Print Network (OSTI)

estimates for other non-renewable-energy commodities, namelyfor other non-renewable, non-energy commodities. Although we

Wiser, Ryan; Bolinger, Mark

2005-01-01T23:59:59.000Z

110

Evaluation and Optimization of Underground Thermal Energy Storage Systems of Energy Efficient Buildings (WKSP)- A Project within the new German R&D- Framework EnBop  

E-Print Network (OSTI)

Until 2003 the research on buildings in operation in Germany focused mainly on demonstration buildings. Starting with the EVA project managed by IGS the attention is shifting towards performance in operation. The paper gives a general review of these research projects and presents detailed results of project WKSP. The performance of buildings with systems for underground thermal energy storage is analysed in this project. As the analyses show several systems work worse than expected. Within the project most of the systems could be significantly improved in operation. The scientific work on building performance in operation will be broadened within the new R&D framework EnBop. IGS will coordinate the framework funded by the German Ministry of Economics and Technology.

Bockelmann, F.; Kipry, H.; Plesser, S.; Fisch, M. N.

2008-10-01T23:59:59.000Z

111

THERMAL RECOVERY  

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

THERMAL RECOVERY Thermal recovery comprises the techniques of steamflooding, cyclic steam stimulation, and in situ combustion. In steamflooding, high-temperature steam is injected...

112

Cooling thermal storage  

Science Conference Proceedings (OSTI)

This article gives some overall guidelines for successful operation of cooling thermal storage installations. Electric utilities use rates and other incentives to encourage thermal storage, which not only reduces their system peaks but also transfers a portion of their load from expensive daytime inefficient peaking plants to less expensive nighttime base load high efficiency coal and nuclear plants. There are hundreds of thermal storage installations around the country. Some of these are very successful; others have failed to achieve all of their predicted benefits because application considerations were not properly addressed.

Gatley, D.P.

1987-04-01T23:59:59.000Z

113

Fixed-outline thermal-aware 3D floorplanning  

Science Conference Proceedings (OSTI)

In this paper, we present a novel algorithm for 3D floorplanning with fixed outline constraints and a particular emphasis on thermal awareness. A computationally efficient thermal model that can be used to guide the thermal-aware floorplanning algorithm ...

Linfu Xiao; Subarna Sinha; Jingyu Xu; Evangeline F. Y. Young

2010-01-01T23:59:59.000Z

114

CenterPoint Energy (Gas) - Commercial Energy Efficiency Rebate...  

Open Energy Info (EERE)

Unit Heaters: 83% thermal efficiency or higher Infrared Heaters: New or Retrofit, Low intensity tube type Water Heaters: 88% or greater condensing efficiency Maximum Incentive...

115

Efficient Algorithms for Renewable Energy Allocation to Delay Tolerant Consumers  

E-Print Network (OSTI)

We investigate the problem of allocating energy from renewable sources to flexible consumers in electricity markets. We assume there is a renewable energy supplier that provides energy according to a time-varying (and possibly unpredictable) supply process. The plant must serve consumers within a specified delay window, and incurs a cost of drawing energy from other (possibly non-renewable) sources if its own supply is not sufficient to meet the deadlines. We formulate two stochastic optimization problems: The first seeks to minimize the time average cost of using the other sources (and hence strives for the most efficient utilization of the renewable source). The second allows the renewable source to dynamically set a price for its service, and seeks to maximize the resulting time average profit. These problems are solved via the Lyapunov optimization technique. Our resulting algorithms do not require knowledge of the statistics of the time-varying supply and demand processes and are robust to arbitrary samp...

Neely, Michael J; Dimakis, Alexandros G

2010-01-01T23:59:59.000Z

116

Impact of Large Scale Energy Efficiency Programs On Consumer Tariffs and Utility Finances in India  

E-Print Network (OSTI)

Households From Improved Appliance Efficiency. Pune: PrayasAppliances Retirement (of conventional appliances) National Thermal

Abhyankar, Nikit

2011-01-01T23:59:59.000Z

117

Microwave-Assisted Ignition for Improved Internal Combustion Engine Efficiency  

E-Print Network (OSTI)

thermal efficiency for electricity generation from combustible sources ( , or as a fraction of energy converted in the case of solar

DeFilippo, Anthony Cesar

2013-01-01T23:59:59.000Z

118

Thermal performance of gas-cooled divertors.  

E-Print Network (OSTI)

??A significant factor in the overall efficiency of the balance of plant for a future magnetic fusion energy (MFE) reactor is the thermal performance of (more)

Rader, Jordan D.

2013-01-01T23:59:59.000Z

119

Citizens Gas - Residential Efficiency Rebates | Department of...  

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

& Cooling Heating Appliances & Electronics Water Heating Maximum Rebate Limit of 15 Energy Star rebates per builder per calendar year Thermal Efficiency Water Heater: 75...

120

Building Energy Efficiency Technologies Available for ...  

Solar Photovoltaic; Solar Thermal; Startup America; ... The three sections of this energy-efficient wall panel work together to keep the weather out ...

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Easing the natural gas crisis: Reducing natural gas prices through increased deployment of renewable energy and energy efficiency  

E-Print Network (OSTI)

gas and other non-renewable-energy commodities (ignoring thefor other non-renewable, non-energy commodities. Although we

Wiser, Ryan; Bolinger, Mark; St. Clair, Matt

2004-01-01T23:59:59.000Z

122

Egypt-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Egypt-Joint Programme on Resource Efficient and Cleaner Production (RECP) Egypt-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Egypt-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

123

Uganda-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Uganda-Joint Programme on Resource Efficient and Cleaner Production (RECP) Uganda-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Uganda-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

124

Serbia-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Serbia-Joint Programme on Resource Efficient and Cleaner Production (RECP) Serbia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Serbia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

125

Armenia-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Armenia-Joint Programme on Resource Efficient and Cleaner Production (RECP) Armenia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Armenia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, - Industrial Processes, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

126

Laos-Joint Programme on Resource Efficient and Cleaner Production (RECP) in  

Open Energy Info (EERE)

Laos-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Laos-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Laos-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

127

El Salvador-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

El Salvador-Joint Programme on Resource Efficient and Cleaner Production El Salvador-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name El Salvador-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

128

Mexico-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Mexico-Joint Programme on Resource Efficient and Cleaner Production (RECP) Mexico-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Mexico-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

129

Bolivia-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Bolivia-Joint Programme on Resource Efficient and Cleaner Production (RECP) Bolivia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Bolivia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

130

Lebanon-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Lebanon-Joint Programme on Resource Efficient and Cleaner Production (RECP) Lebanon-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Lebanon-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

131

Romania-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Romania-Joint Programme on Resource Efficient and Cleaner Production (RECP) Romania-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Romania-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

132

Morocco-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Morocco-Joint Programme on Resource Efficient and Cleaner Production (RECP) Morocco-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Morocco-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

133

Ecuador-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Ecuador-Joint Programme on Resource Efficient and Cleaner Production (RECP) Ecuador-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Ecuador-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

134

Kenya-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Kenya-Joint Programme on Resource Efficient and Cleaner Production (RECP) Kenya-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Kenya-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

135

South Korea-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

South Korea-Joint Programme on Resource Efficient and Cleaner Production South Korea-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name South Korea-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

136

Russia-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Russia-Joint Programme on Resource Efficient and Cleaner Production (RECP) Russia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Russia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

137

Croatia-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Croatia-Joint Programme on Resource Efficient and Cleaner Production (RECP) Croatia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Croatia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

138

Sri Lanka-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

Sri Lanka-Joint Programme on Resource Efficient and Cleaner Production Sri Lanka-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Sri Lanka-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

139

Vietnam-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Vietnam-Joint Programme on Resource Efficient and Cleaner Production (RECP) Vietnam-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Vietnam-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

140

Brazil-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Brazil-Joint Programme on Resource Efficient and Cleaner Production (RECP) Brazil-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Brazil-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Republic of Macedonia-Joint Programme on Resource Efficient and Cleaner  

Open Energy Info (EERE)

Republic of Macedonia-Joint Programme on Resource Efficient and Cleaner Republic of Macedonia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Republic of Macedonia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

142

India-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

India-Joint Programme on Resource Efficient and Cleaner Production (RECP) India-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name India-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

143

Tunisia-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Tunisia-Joint Programme on Resource Efficient and Cleaner Production (RECP) Tunisia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Tunisia-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

144

Hungary-Joint Programme on Resource Efficient and Cleaner Production (RECP)  

Open Energy Info (EERE)

Hungary-Joint Programme on Resource Efficient and Cleaner Production (RECP) Hungary-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Hungary-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

145

South Africa-Joint Programme on Resource Efficient and Cleaner Production  

Open Energy Info (EERE)

South Africa-Joint Programme on Resource Efficient and Cleaner Production South Africa-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name South Africa-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation Topics Background analysis, Co-benefits assessment, - Environmental and Biodiversity, - Health, - Macroeconomic, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, -NAMA, -Roadmap, -TNA, Market analysis, Pathways analysis, Policies/deployment programs, Resource assessment, Technology characterizations

146

Linearly Polarized Thermal Emitter for More Efficient ...  

Electricity Transmission; Energy Analysis; Energy Storage; Geothermal; Hydrogen and Fuel Cell; Hydropower, Wave and Tidal; Industrial Technologies; Solar Photovoltaic;

147

Efficient thermal management for multiprocessor systems  

E-Print Network (OSTI)

the autocorrelation function (ACF). Autocorrelation is theresiduals are random, the ACF of all residuals (except forassumed as random if the ACF for the majority of the trace

Co?kun, Ay?e K?v?lc?m

2009-01-01T23:59:59.000Z

148

Scenarios for Benefits Analysis of Energy Research, Development, Demonstration and Deployment  

E-Print Network (OSTI)

18 Figure 7 Total Non-Renewable Energy24 Figure 17 Total Non-Renewable EnergyEnergy Efficiency and Renewable Energy U.S. Department of

Gumerman, Etan; Marnay, Chris

2005-01-01T23:59:59.000Z

149

Sustainable and efficient biohydrogen production via electrohydrogenesis  

Science Conference Proceedings (OSTI)

Hydrogen gas has tremendous potential as an environmentally acceptable energy carrier for vehicles, but most hydrogen is generated from nonrenewable fossil fuels such as natural gas. Here, the authors show that efficient and sustainable hydrogen production is possible from any type of biodegradable organic matter by electrohydrogenesis. In this process, protons and electrons released by exoelectrogenic bateria in specially designed reactors (based on modifying microbial fuel cells) are catalyzed to form hydrogen gas through the addition of a small voltage to the circuit. By improving the materials and reactor architecture, hydrogen gas was produced at yields of 2.01-3.95 mol/mol (50-99% of the theoretical maximum) at applied voltages of 0.2 to 0.8 V using acetic acid, a typical dead-end product of glucose or cellulose fermentation. At an applied voltage of 0.6 V, the overall energy efficiency of the process was 288% based solely on electricity applied, and 82% when the heat of combusion of acetic acid was included in the energy balance, at a gas production rate of 1.1 m{sup 3} of H{sub 2} per cubic meter of reactor per day. Direct high-yield hydrogen gas production was further demonstrated by using glucose, several volatile acids (acetic, butyric, lactic, propionic, and valeric), and cellulose at maximum stoichiometric yields of 54-91% and overall energy efficiencies of 64-82%. This electrohydrogenic process thus provides a highly efficient route for producting hydrogen gas from renewable and carbon-neutral biomass resources.

Cheng, S.; Logan, B.E. [Pennsylvania State Univ., University Park, PA (United States). Dept. of Civil and Environmental Engineering

2007-11-20T23:59:59.000Z

150

Hybrid photovoltaic thermal collector (PVT) for the production of hot water and electricity  

Science Conference Proceedings (OSTI)

The main concept of developing the hybrid Photovoltaic/Thermal (PV/T) is to increase the efficiency of the solar and thermal collector. It is known that the efficiency of the Photovoltaic solar collector is decreases when the ambient temperature increased ... Keywords: absorber collectors, hybrid photovoltaic thermal (PVT), thermal and electrical efficiency

Adnan Ibrahim; K. Sopian; M. Y. Othman; M. H. Ruslan; M. A. Alghoul; M. Yahya; Azami Zaharim

2008-11-01T23:59:59.000Z

151

Efficiency Measures  

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

recommended steam system energy efficiency measures Based on analyses implementation of steam system energy efficiency measures is driven primarily by cost metrics payback period...

152

Cuba-Joint Programme on Resource Efficient and Cleaner Production (RECP) in  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Cuba-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Jump to: navigation, search Name Cuba-Joint Programme on Resource Efficient and Cleaner Production (RECP) in Developing and Transition Countries Agency/Company /Organization United Nations Industrial Development Organization (UNIDO), United Nations Environment Programme (UNEP) Partner Ministry of Energy, Ministry of Planning, Ministry of Finance, Ministry of Environment, Ministry of Industry Sector Climate, Energy, Water Focus Area Renewable Energy, Non-renewable Energy, Agriculture, Economic Development, Goods and Materials, Industry, People and Policy, Water Conservation

153

Thermal and non-thermal energies in solar flares  

E-Print Network (OSTI)

The energy of the thermal flare plasma and the kinetic energy of the non-thermal electrons in 14 hard X-ray peaks from 9 medium-sized solar flares have been determined from RHESSI observations. The emissions have been carefully separated in the spectrum. The turnover or cutoff in the low-energy distribution of electrons has been studied by simulation and fitting, yielding a reliable lower limit to the non-thermal energy. It remains the largest contribution to the error budget. Other effects, such as albedo, non-uniform target ionization, hot target, and cross-sections on the spectrum have been studied. The errors of the thermal energy are about equally as large. They are due to the estimate of the flare volume, the assumption of the filling factor, and energy losses. Within a flare, the non-thermal/thermal ratio increases with accumulation time, as expected from loss of thermal energy due to radiative cooling or heat conduction. Our analysis suggests that the thermal and non-thermal energies are of the same magnitude. This surprising result may be interpreted by an efficient conversion of non-thermal energy to hot flare plasma.

Pascal Saint-Hilaire; Arnold O. Benz

2005-03-03T23:59:59.000Z

154

Concentrating Solar Thermal Technology  

Science Conference Proceedings (OSTI)

After nearly 20 years of commercial dormancy, concentrating solar thermal (CST) power development and investment activity is heating up globally. Encouraged by volatile energy prices, carbon markets, and renewable-friendly policies, an increasing number of established companies, newcomers, utilities, and government agencies are planning to deploy CST systems to tap the technologies' improving conversion efficiencies and low-cost electricity production potential. This renewable energy technology perspecti...

2009-03-27T23:59:59.000Z

155

Table 8.3a Useful Thermal Output at Combined-Heat-and-Power Plants ...  

U.S. Energy Information Administration (EIA)

7 Batteries, chemicals, hydrogen, pitch, purchased steam, sulfur, miscellaneous technologies, and, beginning in 2001, non-renewable waste (municipal solid waste from ...

156

Approaches to energy efficiency in Chinas large-scale public building.  

E-Print Network (OSTI)

?? In recent years, the energy shortage has become a barrier to social development as there is a shortage of resources, especially non-renewable resources. In (more)

Yu, Wenhe

2010-01-01T23:59:59.000Z

157

The smallest refrigerators can reach maximal efficiency  

E-Print Network (OSTI)

We investigate whether size imposes a fundamental constraint on the efficiency of small thermal machines. We analyse in detail a model of a small self-contained refrigerator consisting of three qubits. We show analytically that this system can reach the Carnot efficiency, thus demonstrating that there exists no complementarity between size and efficiency.

Paul Skrzypczyk; Nicolas Brunner; Noah Linden; Sandu Popescu

2010-09-04T23:59:59.000Z

158

Engine Combustion & Efficiency - FEERC  

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

Engine Combustion & Efficiency Engine Combustion & Efficiency ORNL currently and historically supports the U.S. DOE on multi-cylinder and vehicle applications of diesel combustion, lean burn gasoline combustion, and low temperature combustion processes, and performs principal research on efficiency enabling technologies including emission controls, thermal energy recovery, and bio-renewable fuels. Research areas span from fundamental concepts to engine/vehicle integration and demonstration with a particular emphasis on the following areas: Thermodynamics for identifying and characterizing efficiency opportunities for engine-systems as well as the development of non-conventional combustion concepts for reducing fundamental combustion losses. Nonlinear sciences for improving the physical understanding and

159

Efficiency of Exterior Exposed Ductwork  

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

6 6 Efficiency of Exterior Exposed Ductwork Most of California's commercial buildings have thermal distribution systems, the majority (63%) of which are air-based and distribute air through ductworks. Thermal distribution ductwork systems in small commercial buildings are similar to those in residential construction [Winter 1995, p.8] and have the same leakage and conduction-loss problems. The extent of these duct-related thermal losses depends on the location of the ductwork-the largest thermal losses occur when the ducts are entirely outside the building envelope. Leakage, conduction losses, direct solar radiation effects and solar reflection all affect the magnitude of thermal loss. Differences in the lengths of exterior ducts also affect a distribution system's energy

160

Rapid thermal processing by stamping  

DOE Patents (OSTI)

A rapid thermal processing device and methods are provided for thermal processing of samples such as semiconductor wafers. The device has components including a stamp (35) having a stamping surface and a heater or cooler (40) to bring it to a selected processing temperature, a sample holder (20) for holding a sample (10) in position for intimate contact with the stamping surface; and positioning components (25) for moving the stamping surface and the stamp (35) in and away from intimate, substantially non-pressured contact. Methods for using and making such devices are also provided. These devices and methods allow inexpensive, efficient, easily controllable thermal processing.

Stradins, Pauls; Wang, Qi

2013-03-05T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Mobile Window Thermal Test  

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

Mobile Window Thermal Test (MoWiTT) Facility Mobile Window Thermal Test (MoWiTT) Facility winter.jpg (469135 bytes) The window has come a long way since the days when it was a single pane of glass in a wood frame. Low-emissivity windows were designed to help buildings retain some of the energy that would have leaked out of less efficient windows. Designing efficient window-and-frame systems is one strategy for reducing the energy use of buildings. But the net energy flowing through a window is a combination of temperature- driven thermal flows and transmission of incident solar energy, both of which vary with time. U-factor and solar heat gain coefficient (SHGC), the window properties that control these flows, depend partly on ambient conditions. Window energy flows can affect how much energy a building uses, depending on when the window flows are available to help meet other energy demands within the building, and when they are adverse, adding to building energy use. This leads to a second strategy for reducing building energy use: using the beneficial solar gain available through a window, either for winter heating or for daylighting, while minimizing adverse flows.

162

Energy Efficient  

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

www.efficientwindows.org July 2011 E nergy-efficient windows save heating and cooling energy and improve occupant comfort while allowing for downsized HVAC equipment....

163

Energy Efficiency Improvement and Cost Saving Opportunities for the Dairy Processing Industry  

E-Print Network (OSTI)

panels Tri-generation Solar thermal water preheating Backpressure turbines Table 5.4 Summary of efficiency

Brush, Adrian

2012-01-01T23:59:59.000Z

164

Windows for energy efficient buildings  

SciTech Connect

Information is compiled and reviewed on energy efficient windows. The status, support organization, and descriptions of some research, development, demonstration, and applications program of energy efficient windows are presented. Information about contract opportunities and recently awarded contracts is included. New products, materials, components, patents, and legislation are summarized. Information on industry organizations, literature, publications, and reports is included. A matrix of numerical performance data of window thermal barriers is presented. (MCW)

1980-01-01T23:59:59.000Z

165

Solar thermal financing guidebook  

DOE Green Energy (OSTI)

This guidebook contains information on alternative financing methods that could be used to develop solar thermal systems. The financing arrangements discussed include several lease alternatives, joint venture financing, R and D partnerships, industrial revenue bonds, and ordinary sales. In many situations, alternative financing arrangements can significantly enhance the economic attractiveness of solar thermal investments by providing a means to efficiently allocate elements of risk, return on investment, required capital investment, and tax benefits. A net present value approach is an appropriate method that can be used to investigate the economic attractiveness of alternative financing methods. Although other methods are applicable, the net present value approach has advantages of accounting for the time value of money, yielding a single valued solution to the financial analysis, focusing attention on the opportunity cost of capital, and being a commonly understood concept that is relatively simple to apply. A personal computer model for quickly assessing the present value of investments in solar thermal plants with alternative financing methods is presented in this guidebook. General types of financing arrangements that may be desirable for an individual can be chosen based on an assessment of his goals in investing in solar thermal systems and knowledge of the individual's tax situation. Once general financing arrangements have been selected, a screening analysis can quickly determine if the solar investment is worthy of detailed study.

Williams, T.A.; Cole, R.J.; Brown, D.R.; Dirks, J.A.; Edelhertz, H.; Holmlund, I.; Malhotra, S.; Smith, S.A.; Sommers, P.; Willke, T.L.

1983-05-01T23:59:59.000Z

166

Cylindrical thermal contact conductance  

E-Print Network (OSTI)

Thermal contact conductance is highly important in a wide variety of applications, from the cooling of electronic chips to the thermal management of spacecraft. The demand for increased efficiency means that components need to withstand higher temperatures and heat transfer rates. Many situations call for contact heat transfer through nominally cylindrical interfaces, yet relatively few studies of contact conductance through cylindrical interfaces have been undertaken. This study presents a review of the experimental and theoretical investigations of the heat transfer characteristics of composite cylinders, presenting data available in open literature in comparison with relevant correlations. The present investigation presents a study of the thermal contact conductance of cylindrical interfaces. The experimental investigation of sixteen different material combinations offers an opportunity to develop predictive correlations of the contact conductance, in conjunction with an analysis of the interface pressure as a function of the thermal state of the individual cylindrical shells. Experimental results of the present study are compared with previously published conductance data and conductance models.

Ayers, George Harold

2003-08-01T23:59:59.000Z

167

Recycling of wasted energy : thermal to electrical energy conversion  

E-Print Network (OSTI)

the overall efficiency. The heat source can be solar thermalefficiency of the vehicles can be considerably enhanced [105]. Other examples of LGH include solar thermal

Lim, Hyuck

2011-01-01T23:59:59.000Z

168

Thermal Management of Onboard Cryogenic Hydrogen Storage Systems...  

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

Plan: (A) System Weight and Volume (C) Efficiency (E) ChargingDischarging Rates (J) Thermal Management Technical Targets In this project, studies are being conducted to develop...

169

Renewable Energy and Energy-Efficient Technologies Grants Program...  

Open Energy Info (EERE)

Wave Energy, Ocean Thermal, Direct-Use Geothermal Active Incentive No Implementing Sector StateTerritory Energy Category Renewable Energy Incentive Programs, Energy Efficiency...

170

Faster, More Efficient Redox Cycle to Split Water or ...  

heating or cooling is required between the respective ... using concentrated solar energy to provide thermal ... More Efficient Redox Cycle to Split W ...

171

More Efficient Polymer Solar Cells by Doping with Ferroelectric ...  

Science Conference Proceedings (OSTI)

Presentation Title, More Efficient Polymer Solar Cells by Doping with ... Mixture for Predicting the Ideal Solubility of Thermally Stable and Unstable Compounds.

172

Design of Bulk Nanocomposites as High Efficiency Thermoelectric...  

Office of Science (SC) Website

structure as the host material breaks thermoelectric efficiency records by blocking thermal, but not electrical, conductivity. Significance and Impact A new strategy to design...

173

Riverland Energy Cooperative- Commercial and Industrial Energy Efficiency Rebate Program  

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

Riverland Energy Cooperative offers a number of rebates for the purchase and installation of efficient lighting fixtures, air conditioners, heat pumps, water heaters, central electric thermal...

174

Variable emissivity laser thermal control system  

DOE Patents (OSTI)

A laser thermal control system for a metal vapor laser maintains the wall mperature of the laser at a desired level by changing the effective emissivity of the water cooling jacket. This capability increases the overall efficiency of the laser.

Milner, Joseph R. (Livermore, CA)

1994-01-01T23:59:59.000Z

175

THERMAL PERFORMANCE OF MANAGED WINDOW SYSTEMS  

E-Print Network (OSTI)

PERFORMANCE OF MANAGED WINDOW SYSTEMS S. E. Selkowitz and V.York, N.Y. , (1971). Windows for Energy Efficient Buildings,thermal performance of a window system are its overall heat

Selkowitz, S. E.

2011-01-01T23:59:59.000Z

176

Urban solarium : thermal performance in Boston  

E-Print Network (OSTI)

This thesis addresses the issue of energy efficiency through the lens of thermal performance in the context of urban housing in the city of Boston. Located in the historic brick row house neighborhood of the South End, the ...

Hsu, Juliet Chia-Wen

2012-01-01T23:59:59.000Z

177

Theoretical efficiency of solar thermoelectric energy generators  

E-Print Network (OSTI)

This paper investigates the theoretical efficiency of solar thermoelectric generators (STEGs). A model is established including thermal concentration in addition to optical concentration. Based on the model, the maximum ...

Chen, Gang

178

Thermal via placement in 3D ICs  

E-Print Network (OSTI)

As thermal problems become more evident, new physical design paradigms and tools are needed to alleviate them. Incorporating thermal vias into integrated circuits (ICs) is a promising way of mitigating thermal issues by lowering the thermal resistance of the chip itself. However, thermal vias take up valuable routing space, and therefore, algorithms are needed to minimize their usage while placing them in areas where they would make the greatest impact. With the developing technology of three-dimensional integrated circuits (3D ICs), thermal problems are expected to be more prominent, and thermal vias can have a larger impact on them than in traditional 2D ICs. In this paper, thermal vias are assigned to specific areas of a 3D IC and used to adjust their effective thermal conductivities. The thermal via placement method makes iterative adjustments to these thermal conductivities in order to achieve a desired maximum temperature objective. Finite element analysis (FEA) is used in formulating the method and in calculating temperatures quickly during each iteration. As a result, the method efficiently achieves its thermal objective while minimizing the thermal via utilization.

Brent Goplen

2005-01-01T23:59:59.000Z

179

Thermal Batteries for Electric Vehicles  

Science Conference Proceedings (OSTI)

HEATS Project: UT Austin will demonstrate a high-energy density and low-cost thermal storage system that will provide efficient cabin heating and cooling for EVs. Compared to existing HVAC systems powered by electric batteries in EVs, the innovative hot-and-cold thermal batteries-based technology is expected to decrease the manufacturing cost and increase the driving range of next-generation EVs. These thermal batteries can be charged with off-peak electric power together with the electric batteries. Based on innovations in composite materials offering twice the energy density of ice and 10 times the thermal conductivity of water, these thermal batteries are expected to achieve a comparable energy density at 25% of the cost of electric batteries. Moreover, because UT Austins thermal energy storage systems are modular, they may be incorporated into the heating and cooling systems in buildings, providing further energy efficiencies and positively impacting the emissions of current building heating/cooling systems.

None

2011-11-21T23:59:59.000Z

180

Thermal Conversion of Methane to Acetylene  

DOE Green Energy (OSTI)

This report describes the experimental demonstration of a process for the direct thermal conversion of methane to acetylene. The process utilizes a thermal plasma heat source to dissociation products react to form a mixture of acetylene and hydrogen. The use of a supersonic expansion of the hot gas is investigated as a method of rapidly cooling (quenching) the product stream to prevent further reaction or thermal decomposition of the acetylene which can lower the overall efficiency of the process.

Fincke, James Russell; Anderson, Raymond Paul; Hyde, Timothy Allen; Wright, Randy Ben; Bewley, Randy Lee; Haggard, Delon C; Swank, William David

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Thermal Properties  

Science Conference Proceedings (OSTI)

Table 12   Thermal conductivities of polymers and other materials...40,000 2.8 Aluminum 24,000 1.7 Steel 5000 0.35 Granite 350 0.02 Crown glass (75 wt% silica) 90 0.006 Source: Ref 4...

182

Thermal performance of the Brookhaven natural thermal storage house  

DOE Green Energy (OSTI)

In the Brookhaven natural thermal storage house, an energy-efficient envelope, passive solar collectors, and a variety of energy conservation methods are incorporated. The thermal characteristics of the house during the tested heating season are evaluated. Temperature distributions at different zones are displayed, and the effects of extending heating supply ducts only to the main floor and heating return ducts only from the second floor are discussed. The thermal retrievals from the structure and the passive collectors are assessed, and the total conservation and passive solar contributions are outlined. Several correlation factors relating these thermal behaviors are introduced, and their diurnal variations are displayed. Finally, the annual energy requirements, and the average load factors are analyzed and discussed.

Ghaffari, H.T.; Jones, R.F.

1981-01-01T23:59:59.000Z

183

Study on machined thermal sprayed coatings adherence  

Science Conference Proceedings (OSTI)

Thermal sprayed coatings represent a modern way of solving real important problems, like repairing worn parts working under severe wearing conditions or, ensuring efficient corrosion protection of parts used in sea, as platform, bridges, or obtaining ... Keywords: adherence, cylindrical turning, metallizing process, sample, thermal sprayed coatings, transducer

Mihaiela Iliescu; Mihnea Costoiu; Sergiu Tonoiu

2008-11-01T23:59:59.000Z

184

High Efficiency, Clean Combustion  

DOE Green Energy (OSTI)

Energy use in trucks has been increasing at a faster rate than that of automobiles within the U.S. transportation sector. According to the Energy Information Administration (EIA) Annual Energy Outlook (AEO), a 23% increase in fuel consumption for the U.S. heavy duty truck segment is expected between 2009 to 2020. The heavy duty vehicle oil consumption is projected to grow between 2009 and 2050 while light duty vehicle (LDV) fuel consumption will eventually experience a decrease. By 2050, the oil consumption rate by LDVs is anticipated to decrease below 2009 levels due to CAFE standards and biofuel use. In contrast, the heavy duty oil consumption rate is anticipated to double. The increasing trend in oil consumption for heavy trucks is linked to the vitality, security, and growth of the U.S. economy. An essential part of a stable and vibrant U.S. economy is a productive U.S. trucking industry. Studies have shown that the U.S. gross domestic product (GDP) is strongly correlated to freight transport. Over 90% of all U.S. freight tonnage is transported by diesel power and over 75% is transported by trucks. Given the vital role that the trucking industry plays in the economy, improving the efficiency of the transportation of goods was a central focus of the Cummins High Efficient Clean Combustion (HECC) program. In a commercial vehicle, the diesel engine remains the largest source of fuel efficiency loss, but remains the greatest opportunity for fuel efficiency improvements. In addition to reducing oil consumption and the dependency on foreign oil, this project will mitigate the impact on the environment by meeting US EPA 2010 emissions regulations. Innovation is a key element in sustaining a U.S. trucking industry that is competitive in global markets. Unlike passenger vehicles, the trucking industry cannot simply downsize the vehicle and still transport the freight with improved efficiency. The truck manufacturing and supporting industries are faced with numerous challenges to reduce oil consumption and greenhouse gases, meet stringent emissions regulations, provide customer value, and improve safety. The HECC program successfully reduced engine fuel consumption and greenhouse gases while providing greater customer valve. The US EPA 2010 emissions standard poses a significant challenge for developing clean diesel powertrains that meet the DoE Vehicle Technologies Multi-Year Program Plan (MYPP) for fuel efficiency improvement while remaining affordable. Along with exhaust emissions, an emphasis on heavy duty vehicle fuel efficiency is being driven by increased energy costs as well as the potential regulation of greenhouse gases. An important element of the success of meeting emissions while significantly improving efficiency is leveraging Cummins component technologies such as fuel injection equipment, aftertreatment, turbomahcinery, electronic controls, and combustion systems. Innovation in component technology coupled with system integration is enabling Cummins to move forward with the development of high efficiency clean diesel products with a long term goal of reaching a 55% peak brake thermal efficiency for the engine plus aftertreatment system. The first step in developing high efficiency clean products has been supported by the DoE co-sponsored HECC program. The objectives of the HECC program are: (1) To design and develop advanced diesel engine architectures capable of achieving US EPA 2010 emission regulations while improving the brake thermal efficiency by 10% compared to the baseline (a state of the art 2007 production diesel engine). (2) To design and develop components and subsystems (fuel systems, air handling, controls, etc) to enable construction and development of multi-cylinder engines. (3) To perform an assessment of the commercial viability of the newly developed engine technology. (4) To specify fuel properties conducive to improvements in emissions, reliability, and fuel efficiency for engines using high-efficiency clean combustion (HECC) technologies. To demonstrate the technology is compatible with B2

Donald Stanton

2010-03-31T23:59:59.000Z

185

Thermal transient anemometer  

DOE Patents (OSTI)

A thermal transient anemometer is disclosed having a thermocouple probe which is utilized to measure the change in temperature over a period of time to provide a measure of fluid flow velocity. The thermocouple probe is located in the fluid flow path and pulsed to heat or cool the probe. The cooling of the heated probe or the heating of the cooled probe from the fluid flow over a period of time is measured to determine the fluid flow velocity. The probe is desired to be locally heated near the tip to increase the efficiency of devices incorporating the probe. 12 figs.

Bailey, J.L.; Vresk, J.

1989-07-18T23:59:59.000Z

186

Projected thermodynamic efficiencies of fusion power plants  

DOE Green Energy (OSTI)

Estimated thermal efficiencies of proposed fusion power plant concepts are compared to the efficiencies of nonfusion power plants. Present trends in electrical power generation are also discussed. The fusion reactor system designs will have about the same thermal efficiencies as present day power plants using steam if these designs require the collection of thermal energy at the blanket and the transfer of that energy to a heat exchanger or boiler using the current technology. Two general methods should be pursued for increasing the thermal efficiencies of fusion power plants and thereby reducing the amount of waste heat. Methods should be developed for increasing the temperatures of the reactor coolants since the maximum attainable thermal efficiency of systems using coolants can be increased only by increasing the coolant temperatures. Second, advanced power recovery systems such as potassium topping turbines, MHD, and direct conversion should be developed since such systems avoid the limits on steam systems due to excessive operating pressures at high temperatures. Direct conversion is particularly attractive because it avoids the theoretical Carnot limit on thermal efficiency when heat is converted to electrical energy.

McKinnon, M.A.

1976-09-01T23:59:59.000Z

187

Solar thermal electric hybridization issues  

DOE Green Energy (OSTI)

Solar thermal electric systems have an advantage over many other renewable energy technologies because the former use heat as an intermediate energy carrier. This is an advantage as it allows for a relatively simple method of hybridization by using heat from fossil-fuel. Hybridization of solar thermal electric systems is a topic that has recently generated significant interest and controversy and has led to many diverse opinions. This paper discusses many of the issues associated with hybridization of solar thermal electric systems such as what role hybridization should play; how it should be implemented; what are the efficiency, environmental, and cost implications; what solar fraction is appropriate; how hybrid systems compete with solar-only systems; and how hybridization can impact commercialization efforts for solar thermal electric systems.

Williams, T A; Bohn, M S; Price, H W

1994-10-01T23:59:59.000Z

188

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network (OSTI)

aquifers for thermal energy storage. Problems outlined aboveModeling of Thermal Energy Storage in Aquifers," Proceed-ings of Aquifer Thermal Energy Storage Workshop, Lawrence

Tsang, C.-F.

2011-01-01T23:59:59.000Z

189

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network (OSTI)

using aquifers for thermal energy storage. Problems outlinedmatical Modeling of Thermal Energy Storage in Aquifers,"Proceed- ings of Aquifer Thermal Energy Storage Workshop,

Tsang, C.-F.

2011-01-01T23:59:59.000Z

190

Energy efficient data centers  

E-Print Network (OSTI)

waste heat to power a thermal- based cooling system, furtherwaste heat to power a thermal- based cooling system, furtherhumidification) and thermal-based cooling systems, such as

Tschudi, William; Xu, Tengfang; Sartor, Dale; Koomey, Jon; Nordman, Bruce; Sezgen, Osman

2004-01-01T23:59:59.000Z

191

Solar bowl component efficiencies  

Science Conference Proceedings (OSTI)

Battelle Pacific Northwest Laboratory has published two volumes on the economic evaluation of various proposed configurations and plant sizes for the four solar thermal technologies. These are the latest in a series of publications sponsored by the Department of Energy (DOE) on plant and operational costs and are more complete in that they include calculations of electrical output. These latest Battelle volumes use the 1976 solar data from Barstow, Calif., and by calculating or estimating the energy conversion efficiency of each element in the process from sun to electricity predict the output and cost of electricity from different plant sizes for each of the four technologies. In this paper a comparison is presented of the component efficiencies developed by Battelle and those of the solar bowl at Crosbyton, Tex.

O'Hair, E.A.; Green, B.L. (College of Engineering, Texas Tech. Univ., Lubbock, TX (United States))

1992-11-01T23:59:59.000Z

192

(Energy Efficiency)  

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

DECLARATION DECLARATION INTERNATIONAL PARTNERSHIP FOR ENERGY EFFICIENCY COOPERATION [IPEEC] Considering: Declarations of the Gleneagles, St. Petersburg and Heiligendamm Summits, which emphasize the need for global cooperation in the field of energy efficiency. Recognizing: 1. that improving energy saving and energy efficiency is one of the quickest, greenest, and most cost-effective way to address energy security, climate change, and ensuring economic growth; 2. that a comprehensive process has been launched to enable the full, effective and sustained implementation of the UNFCCC through long-term cooperative action, now, up to and beyond 2012, in order to reach an agreed outcome and adopt a decision at the COP 15. 3. that all countries, both developed and developing, share common interests for improving their

193

Absorption Cooling Optimizes Thermal Design for Cogeneration  

E-Print Network (OSTI)

Contrary to popular concept, in most cases, thermal energy is the real VALUE in cogeneration and not the electricity. The proper consideration of the thermal demands is equal to or more important than the electrical demands. High efficiency two-stage absorption chillers of the type used at Rice University Cogen Plant offer the most attractive utilization of recoverable thermal energy. With a coefficient of performance (COP) up to 1.25, the two-stage, parallel flow absorption chiller can offer over fifty (50) percent more useful thermal energy from the same waste heat source--gas turbine exhaust, I.C. engine exhaust and jacketwater, incinerator exhaust, or steam turbine extraction.

Hufford, P. E.

1986-01-01T23:59:59.000Z

194

Chemical preconcentrator with integral thermal flow sensor  

DOE Patents (OSTI)

A chemical preconcentrator with integral thermal flow sensor can be used to accurately measure fluid flow rate in a microanalytical system. The thermal flow sensor can be operated in either constant temperature or constant power mode and variants thereof. The chemical preconcentrator with integral thermal flow sensor can be fabricated with the same MEMS technology as the rest of the microanlaytical system. Because of its low heat capacity, low-loss, and small size, the chemical preconcentrator with integral thermal flow sensor is fast and efficient enough to be used in battery-powered, portable microanalytical systems.

Manginell, Ronald P. (Albuquerque, NM); Frye-Mason, Gregory C. (Cedar Crest, NM)

2003-01-01T23:59:59.000Z

195

The effect of thermal aging on the thermal conductivity of plasma sprayed and EB-PVD thermal barrier coatings  

DOE Green Energy (OSTI)

Thermal barrier coatings (TBCs) applied to the hot gas components of turbine engines lead to enhanced fuel efficiency and component reliability. Understanding the mechanisms which control the thermal transport behavior of the TBCs is of primary importance. Electron beam-physical vapor deposition (EV-PVD) and air plasma spraying (APS) are the two most commonly used coating techniques. These techniques produce coatings with unique microstructures which control their performance and stability. The density of the APS coatings was controlled by varying the spray parameters. The low density APS yttria-partially stabilized zirconia (yttria-PSZ) coatings yielded a thermal conductivity that is lower than both the high density APS coatings and the EB-PVD coatings. The thermal aging of both fully and partially stabilized zirconia are compared. The thermal conductivity of the coatings permanently increases upon exposure to high temperatures. These increases are attributed to microstructural changes within the coatings. This increase in thermal conductivity can be modeled using a relationship which depends on both the temperature and time of exposure. Although the EB-PVD coatings are less susceptible to thermal aging effects, results suggest that they typically have a higher thermal conductivity than APS coatings before thermal aging. The increases in thermal conductivity due to thermal aging for plasma sprayed partially stabilized zirconia have been found to be less than for plasma sprayed fully stabilized zirconia coatings.

Dinwiddie, R.B.; Beecher, S.C.; Porter, W.D. [Oak Ridge National Lab., TN (United States); Nagaraj, B.A. [General Electric Co., Cincinnati, OH (United States). Aircraft Engine Group

1996-05-01T23:59:59.000Z

196

Efficient reasoning  

Science Conference Proceedings (OSTI)

Many tasks require reasoningi.e., deriving conclusions from a corpus of explicitly stored informationto solve their range of problems. An ideal reasoning system would produce all-and-only the correct answers ... Keywords: efficiency trade-offs, soundness/completeness/expressibility

Russell Greiner; Christian Darken; N. Iwan Santoso

2001-03-01T23:59:59.000Z

197

CPC thermal collector test plan  

DOE Green Energy (OSTI)

A comprehensive set of test procedures has evolved at Argonne National Laboratory for establishing the performance of compound parabolic and related concentrating thermal collectors with large angular fields of view. The procedures range from separate thermal and optical tests, to overall performance tests. A calorimetric ratio technique has been developed to determine the heat output of a collector without knowledge of the heat transfer fluid's mass flow rate and heat capacity. Sepcial attention is paid to the problem of defining and measuring the incident solar flux with respect to which the collector efficiency is to be calculated.

Reed, K A

1977-01-01T23:59:59.000Z

198

Boiler efficiency methodology for solar heat applications  

DOE Green Energy (OSTI)

This report contains a summary of boiler efficiency measurements which can be applied to evaluate the performance of steam-generating boilers via both the direct and indirect methods. This methodology was written to assist industries in calculating the boiler efficiency for determining the applicability and value of thermal industrial heat, as part of the efforts of the Solar Thermal Design Assistance Center (STDAC) funded by Sandia National Laboratories. Tables of combustion efficiencies are enclosed as functions of stack temperatures and the amount of carbon dioxide and carbon monoxide in the gas stream.

Maples, D.; Conwell, J.C. [Louisiana State Univ., Baton Rouge, LA (United States). Boiler Efficiency Inst.; Pacheco, J.E. [Sandia National Labs., Albuquerque, NM (United States)

1992-08-01T23:59:59.000Z

199

The Energy-Efficient Fixtures Laboratory  

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

0 0 The Energy-Efficient Fixtures Laboratory Replacing the incandescent bulb with a more efficient light source is only the first step in developing an energy-efficient lighting system. Improved fixtures can raise the system's efficiency even further. At LBL's Energy-Efficient Fixtures Laboratory, researchers in the Lighting Systems Group study the optical and thermal efficiency of luminaires, and work closely with fixture manufacturers to develop more efficient products. "Fifty to seventy percent efficiencies are now typical of fixtures," says senior research associate Chin Zhang, "and we're trying to improve them to eighty to ninety percent." Oliver Morse adjusts a centralized light guide system consisting of a 250-watt metal halide lamp, a high-efficiency beam splitter and four hollow

200

State of Solar Thermal Energy Storage Development 2010  

Science Conference Proceedings (OSTI)

Adding solar thermal energy storage (TES) to concentrating solar thermal power (CSP) plants expands both the amount and timing of power delivered to the grid. Thermal storage associated with CSP plants is typically much more efficient and cost-effective than electrical or mechanical forms of storage. In many cases, the addition of thermal energy storage can lower the levelized electricity production cost and increase the solar plant capacity factor, enabling the availability of solar electricity during p...

2010-12-23T23:59:59.000Z

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


201

Solar Thermal Demonstration Project  

SciTech Connect

HVAC Retrofit and Energy Efficiency Upgrades at Clark High School, Las Vegas, Nevada The overall objectives of this project are to increase usage of alternative/renewable fuels, create a better and more reliable learning environment for the students, and reduce energy costs. Utilizing the grant resources and local bond revenues, the District proposes to reduce electricity consumption by installing within the existing limited space, one principal energy efficient 100 ton adsorption chiller working in concert with two 500 ton electric chillers. The main heating source will be primarily from low nitrogen oxide (NOX), high efficiency natural gas fired boilers. With the use of this type of chiller, the electric power and cost requirements will be greatly reduced. To provide cooling to the information technology centers and equipment rooms of the school during off-peak hours, the District will install water source heat pumps. In another measure to reduce the cooling requirements at Clark High School, the District will replace single pane glass and metal panels with ??Kalwall?? building panels. An added feature of the ??Kalwall? system is that it will allow for natural day lighting in the student center. This system will significantly reduce thermal heat/cooling loss and control solar heat gain, thus delivering significant savings in heating ventilation and air conditioning (HVAC) costs.

Biesinger, K.; Cuppett, D.; Dyer, D.

2012-01-30T23:59:59.000Z

202

Thermal conductivity of thermal-battery insulations  

DOE Green Energy (OSTI)

The thermal conductivities of a variety of insulating materials used in thermal batteries were measured in atmospheres of argon and helium using several techniques. (Helium was used to simulate the hydrogen atmosphere that results when a Li(Si)/FeS{sub 2} thermal battery ages.) The guarded-hot-plate method was used with the Min-K insulation because of its extremely low thermal conductivity. For comparison purposes, the thermal conductivity of the Min-K insulating board was also measured using the hot-probe method. The thermal-comparator method was used for the rigid Fiberfrax board and Fiberfrax paper. The thermal conductivity of the paper was measured under several levels of compression to simulate the conditions of the insulating wrap used on the stack in a thermal battery. The results of preliminary thermal-characterization tests with several silica aerogel materials are also presented.

Guidotti, R.A.; Moss, M.

1995-08-01T23:59:59.000Z

203

Smart Thermal Skins for Vehicles  

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

8 8 Smart Thermal Skins for Vehicles With a modest effort, many of the energy-efficient technologies developed for buildings can be transferred to the transportation sector. The goal of vehicle thermal management research at LBL is to save the energy equivalent of one to two billion gallons of gasoline per year, and improve the marketability of next-generation vehicles using advanced solar control glazings and insulating shell components to reduce accessory loads. Spectrally selective and electrochromic window glass and lightweight insulating materials improve the fuel efficiency of conventional and hybrid vehicles and extend the range of electric vehicles by reducing the need for air conditioning and heating, and by allowing the downsizing of equipment.

204

Energy Efficiency Manual  

E-Print Network (OSTI)

Review: Energy Efficiency Manual By Donald R. WulfinghoffWulfinghoff, Donald R. Energy Efficiency Manual. Wheaton,and efficiently. The Energy Efficiency Manual offers up-to-

Weintraub, Irwin

2000-01-01T23:59:59.000Z

205

High Efficiency Engine Technologies Program  

Science Conference Proceedings (OSTI)

Caterpillar's Product Development and Global Technology Division carried out a research program on waste heat recovery with support from DOE (Department of Energy) and the DOE National Energy Technology Laboratory. The objective of the program was to develop a new air management and exhaust energy recovery system that would demonstrate a minimum 10% improvement in thermal efficiency over a base heavy-duty on-highway diesel truck engine. The base engine for this program was a 2007 C15 15.2L series-turbocharged on-highway truck engine with a LPL (low-pressure loop) exhaust recirculation system. The focus of the program was on the development of high efficiency turbomachinery and a high efficiency turbocompound waste heat recovery system. The focus of each area of development was as follows: (1) For turbine stages, the focus was on investigation and development of technologies that would improve on-engine exhaust energy utilization compared to the conventional radial turbines in widespread use today. (2) For compressor stages, the focus was on investigating compressor wheel design parameters beyond the range typically utilized in production, to determine the potential efficiency benefits thereof. (3) For turbocompound, the focus was on the development of a robust bearing system that would provide higher bearing efficiencies compared to systems used in turbocompound power turbines in production. None of the turbocharger technologies investigated involved addition of moving parts, actuators, or exotic materials, thereby increasing the likelihood of a favorable cost-value tradeoff for each technology. And the turbocompound system requires less hardware addition than competing bottoming cycle technologies, making it a more attractive solution from a cost and packaging standpoint. Main outcomes of the program are as follows: (1) Two turbine technologies that demonstrated up to 6% improvement in turbine efficiency on gas stand and 1-3% improvement in thermal efficiency in on-engine testing. (2) A compressor technology that demonstrated 1.5% improvement in compressor efficiency on gas stand compared to production available compressors. (3) A power turbine with high efficiency bearing system that demonstrated excellent rotordynamic stability throughout the required speed range, up to 60,000 rpm. (4) A predicted improvement (using engine simulation) in engine thermal efficiency of 7% at the peak torque design point, when combining the technologies developed in this program.

Rich Kruiswyk

2010-07-13T23:59:59.000Z

206

Efficiency of an AMTEC recirculating test cell, experiments and projections  

DOE Green Energy (OSTI)

The alkali metal thermal to electric converter (AMTEC) is an electrochemical device for the direct conversion of heat to electrical energy with efficiencies potentially near Carnot. The future usefulness of AMTEC for space power conversion depends on the efficiency of the devices. Systems studies have projected from 15% to 35% thermal to electric conversion efficiencies, and one experiment has demonstrated 19% efficiency for a short period of time. Recent experiments in a recirculating test cell (RTC) have demonstrated sustained conversion efficiencies as high as 10.2% early in cell life and 9.7% after maturity. Extensive thermal and electrochemical analysis of the cell during several experiments demonstrated that the efficiency could be improved in two ways. First, the electrode performance could be improved. The electrode for these tests operated at about one third the power density of state of the art electrodes. The low power density was caused by a combination of high series resistance and high mass flow resistance. Reducing these resistances could improve the efficiency to greater than 10%. Second, the cell thermal performance could be improved. Efficiencies greater than 14% could be realized through reducing the radiative thermal loss. Further improvements to the efficiency range predicted by systems studies can be accomplished through the development and use of an advanced condenser with improved reflectivity, close to that of a smooth sodium film, and the series connecting of individual cells to further reduce thermal losses.

Underwood, M.L.; O`Connor, D.; Williams, R.M.; Jeffries-Nakamura, B.; Ryan, M.A.

1992-05-01T23:59:59.000Z

207

Seasonal thermal energy storage  

DOE Green Energy (OSTI)

This report describes the following: (1) the US Department of Energy Seasonal Thermal Energy Storage Program, (2) aquifer thermal energy storage technology, (3) alternative STES technology, (4) foreign studies in seasonal thermal energy storage, and (5) economic assessment.

Allen, R.D.; Kannberg, L.D.; Raymond, J.R.

1984-05-01T23:59:59.000Z

208

Thermal conductivity from first-principles in bulk, disordered, and nanostructured materials  

E-Print Network (OSTI)

Thermal conductivity is an important transport property that plays a vital role in applications such as high efficiency thermoelectric devices as well as in thermal management of electronics. We present a first-principles ...

Garg, Jivtesh

2011-01-01T23:59:59.000Z

209

Optimization of multi-pressure himidification-dehumidification desalination using thermal vapor compression and hybridization  

E-Print Network (OSTI)

Humidification-dehumidification (HD or HDH) desalination, and specifically HD driven by a thermal vapor compressor (TVC), is a thermal desalination method that has the potential to produce potable water efficiently in order ...

Mistry, Karan Hemant

210

Thermal energy storage for cogeneration applications  

SciTech Connect

Cogeneration is playing an increasingly important role in providing energy efficient power generation and thermal energy for space heating and industrial process heat applications. However, the range of applications for cogeneration could be further increased if the generation of electricity could be coupled from the generation of process heat. Thermal energy storage (TES) can decouple power generation from the production of process heat, allowing the production of dispatchable power while fully utilizing the thermal energy available from the prime mover. The Pacific Northwest Laboratory (PNL) leads the US Department of Energy's Thermal Energy Storage Program. The program focuses on developing TES for daily cycling (diurnal storage), annual cycling (seasonal storage), and utility applications (utility thermal energy storage (UTES)). Several of these technologies can be used in a cogeneration facility. This paper discusses TES concepts relevant to cogeneration and describes the current status of these TES systems.

Drost, M.K.; Antoniak, Z.I.

1992-04-01T23:59:59.000Z

211

Thermal energy storage for cogeneration applications  

DOE Green Energy (OSTI)

Cogeneration is playing an increasingly important role in providing energy efficient power generation and thermal energy for space heating and industrial process heat applications. However, the range of applications for cogeneration could be further increased if the generation of electricity could be coupled from the generation of process heat. Thermal energy storage (TES) can decouple power generation from the production of process heat, allowing the production of dispatchable power while fully utilizing the thermal energy available from the prime mover. The Pacific Northwest Laboratory (PNL) leads the US Department of Energy's Thermal Energy Storage Program. The program focuses on developing TES for daily cycling (diurnal storage), annual cycling (seasonal storage), and utility applications (utility thermal energy storage (UTES)). Several of these technologies can be used in a cogeneration facility. This paper discusses TES concepts relevant to cogeneration and describes the current status of these TES systems.

Drost, M.K.; Antoniak, Z.I.

1992-04-01T23:59:59.000Z

212

Thermal energy storage for cogeneration applications  

DOE Green Energy (OSTI)

Cogeneration is playing an increasingly important role in providing energy efficient power generation and thermal energy for space heating and industrial process heat applications. However, the range of applications for cogeneration could be further increased if the generation of electricity could be coupled from the generation of process heat. Thermal energy storage (TES) can decouple power generation from the production of process heat, allowing the production of dispatchable power while fully utilizing the thermal energy available from the prime mover. The Pacific Northwest Laboratory (PNL) leads the US Department of Energy`s Thermal Energy Storage Program. The program focuses on developing TES for daily cycling (diurnal storage), annual cycling (seasonal storage), and utility applications (utility thermal energy storage (UTES)). Several of these technologies can be used in a cogeneration facility. This paper discusses TES concepts relevant to cogeneration and describes the current status of these TES systems.

Drost, M.K.; Antoniak, Z.I.

1992-04-01T23:59:59.000Z

213

Manipulation of Thermal Phonons  

E-Print Network (OSTI)

Developing materials that can conduct electricity easily, but block the motion of phonons is necessary in the applications of thermoelectric devices, which can generate electricity from temperature differences. In converse, a key requirement as chips get faster is to obtain better ways to dissipate heat. Controlling heat transfer in these crystalline materials devices such as silicon is important. The heat is actually the motion or vibration of atoms known as phonons. Finding ways to manipulate the behavior of phonons is crucial for both energy applications and the cooling of integrated circuits. A novel class of artificially periodic structured materials phononic crystals might make manipulation of thermal phonons possible. In many fields of physical sciences and engineering, acoustic wave propagation in solids attracts many researchers. Wave propagation phenomena can be analyzed by mathematically solving the acoustic wave equation. However, wave propagation in inhomogeneous media with various geometric structures is too complex to find an exact solution. Hence, the Finite Difference Time Domain method is developed to investigate these complicated problems. In this work, the Finite-Difference Time-Domain formula is derived from acoustic wave equations based on the Taylors expansion. The numerical dispersion and stability problems are analyzed. In addition, the convergence conditions of numerical acoustic wave are stated. Based on the periodicity of phononic crystal, the Blochs theorem is applied to fulfill the periodic boundary condition of the FDTD method. Then a wide-band input signal is used to excite various acoustic waves with different frequencies. In the beginning of the calculation process, the wave vector is chosen and fixed. By means of recording the displacement field and taking the Fourier transformation, we can obtain the eigenmodes from the resonance peaks of the spectrum and draw the dispersion relation curve of acoustic waves. With the large investment in silicon nanofabrication techniques, this makes tungsten/silicon phononic crystal a particularly attractive platform for manipulating thermal phonons. Phononic crystal makes use of the fundamental properties of waves to create band gap over which there can be no propagation of acoustic waves in the crystal. This crystal can be applied to deterministically manipulate the phonon dispersion curve affected by different crystal structures and to modify the phonon thermal conductivity accordingly. We can expect this unique metamaterial is a promising route to creating unprecedented thermal properties for highly-efficient energy harvesting and thermoelectric cooling.

Hsu, Chung-Hao

2013-05-01T23:59:59.000Z

214

Thermally activated heat pumps  

SciTech Connect

This article describes research to develop efficient gas-fired heat pumps heat and cool buildings without CFCs. Space heating and cooling use 46% of all energy consumed in US buildings. Air-conditioning is the single leading cause of peak demand for electricity and is a major user of chlorofluorocarbons (CFCs). Advanced energy conversion technology can save 50% of this energy and eliminate CFCs completely. Besides saving energy, advanced systems substantially reduce emissions of carbon dioxide (a greenhouse gas), sulfur dioxide, and nitrogen oxides, which contribute to smog and acid rain. These emissions result from the burning of fossil fuels used to generate electricity. The Office of Building Technologies (OBT) of the US Department of Energy supports private industry`s efforts to improve energy efficiency and increase the use of renewable energy in buildings. To help industry, OBT, through the Oak Ridge National Laboratory, is currently working on thermally activated heat pumps. OBT has selected the following absorption heat pump systems to develop: generator-absorber heat-exchange (GAX) cycle for heating-dominated applications in residential and light commercial buildings; double-condenser-coupled (DCC) cycle for commercial buildings. In addition, OBT is developing computer-aided design software for investigating the absorption cycle.

NONE

1995-05-01T23:59:59.000Z

215

Energy-Efficient Windows | Department of Energy  

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

Energy-Efficient Windows Energy-Efficient Windows Energy-Efficient Windows June 18, 2012 - 8:39am Addthis Energy-efficient windows provide space heating and lighting to this sunny kitchen. | Photo courtesy of Emily Minton-Redfield for Jim Logan Architects. Energy-efficient windows provide space heating and lighting to this sunny kitchen. | Photo courtesy of Emily Minton-Redfield for Jim Logan Architects. What does this mean for me? The windows in your house let in light and air if they're operable, but they can also be weak spots in your home's thermal envelope. When replacing windows, purchase the most energy-efficient windows you can afford, because they will pay for themselves over their lifetimes. Windows provide our homes with light, warmth, and ventilation, but they can also negatively impact a home's energy efficiency. You can reduce energy

216

Energy-Efficient Windows | Department of Energy  

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

Energy-Efficient Windows Energy-Efficient Windows Energy-Efficient Windows June 18, 2012 - 8:39am Addthis Energy-efficient windows provide space heating and lighting to this sunny kitchen. | Photo courtesy of Emily Minton-Redfield for Jim Logan Architects. Energy-efficient windows provide space heating and lighting to this sunny kitchen. | Photo courtesy of Emily Minton-Redfield for Jim Logan Architects. What does this mean for me? The windows in your house let in light and air if they're operable, but they can also be weak spots in your home's thermal envelope. When replacing windows, purchase the most energy-efficient windows you can afford, because they will pay for themselves over their lifetimes. Windows provide our homes with light, warmth, and ventilation, but they can also negatively impact a home's energy efficiency. You can reduce energy

217

FUTURE DIRECTIONS FOR THERMAL DISTRIBUTION STANDARDS  

SciTech Connect

This report details development paths for advanced versions of ASHRAE Standard 152, Method of Test for Determining the Design and Seasonal Efficiencies of Residential Thermal Distribution Efficiency. During the course of conversations within the ASHRAE committee responsible for developing the standard (SPC152P), three areas of development for Standard 152 were proposed: (1) extend the scope of the standard to include thermal comfort variables; (2) extend the scope of the standard to include small commercial buildings; and (3) improve the existing standard with respect to accuracy and economy of effort. Research needs associated with each of the three options are identified.

ANDREWS,J.W.

2003-10-31T23:59:59.000Z

218

Energy-Efficient Residence Hall  

E-Print Network (OSTI)

Recently, there has been an increase in the number of energy efficient buildings in the U.S. We want to encourage this green movement by providing people with a simple and systematic Stairwell Closable vents leading from the floor to the stairwell along with windows in the stairwell leading outside act as a thermal chimney which gets rid of excess heat. approach for green building construction. Our project focuses on creating a guideline for an energy-efficient residence hall. We have looked into energy-efficient and eco-friendly lighting, heating, insulation, and other aspects that integrate into a green building. Our guideline, as a result, will aid colleges in the Worcester community to design and construct green residence halls.

Giselle Chen; Nathaniel Eames; Andrew Holmes; Grant Wong; Advisor David Spanagel (humanities; Arts Department

2009-01-01T23:59:59.000Z

219

Advanced high efficiency concentrator cells  

DOE Green Energy (OSTI)

This report describes research to develop the technology needed to demonstrate a monolithic, multijunction, two-terminal, concentrator solar cell with a terrestrial power conversion efficiency greater than 35%. Under three previous subcontracts, Varian developed many of the aspects of a technology needed to fabricate very high efficiency concentrator cells. The current project was aimed at exploiting the new understanding of high efficiency solar cells. Key results covered in this report are as follows. (1) A 1.93-eV AlGaAs/1.42-eV GaAs metal-interconnected cascade cell was manufactured with a one-sun efficiency at 27.6% at air mass 1.5 (AM1.5) global. (2) A 1.0eV InGaAs cell was fabricated on the reverse'' side of a low-doped GaAs substrate with a one-sun efficiency of 2.5% AM1.5 diffuse and a short-circuit current of 14.4 mA/cm{sup 2}. (3) Small-scale manufacturing of GaAs p/n concentrator cells was attempted and obtained an excellent yield of high-efficiency cells. (4) Grown-in tunnel junction cell interconnects that are transparent and thermally stable using C and Si dopants were developed. 10 refs.

Gale, R. (Varian Associates, Inc., Palo Alto, CA (United States). Varian Research Center)

1992-06-01T23:59:59.000Z

220

Thermal performance of concrete masonry unit wall systems  

Science Conference Proceedings (OSTI)

New materials, modern building wall technologies now available in the building marketplace, and unique, more accurate, methods of thermal analysis of wall systems create an opportunity to design and erect buildings where thermal envelopes that use masonry wall systems can be more efficient. Thermal performance of the six masonry wall systems is analyzed. Most existing masonry systems are modifications of technologies presented in this paper. Finite difference two-dimensional and three-dimensional computer modeling and unique methods of the clear wall and overall thermal analysis were used. In the design of thermally efficient masonry wall systems is t to know how effectively the insulation material is used and how the insulation shape and its location affect the wall thermal performance. Due to the incorrect shape of the insulation or structural components, hidden thermal shorts cause additional heat losses. In this study, the thermal analysis of the clear wall was enriched with the examination of the thermal properties of the wall details and the study of a quantity defined herein the Thermal Efficiency of the insulation material.

Kosny, J.

1995-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Thermal distribution systems in commercial buildings  

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

Thermal distribution systems in commercial buildings Thermal distribution systems in commercial buildings Title Thermal distribution systems in commercial buildings Publication Type Journal Article LBNL Report Number LBNL-51860 Year of Publication 2003 Authors Diamond, Richard C., Craig P. Wray, Darryl J. Dickerhoff, Nance Matson, and Duo Wang Start Page Chapter Abstract Previous research suggests that HVAC thermal distribution systems in commercial buildings suffer from thermal losses, such as those caused by duct air leakage and poor duct location. Due to a lack of metrics and data showing the potentially large energy savings from reducing these losses, the California building industry has mostly overlooked energy efficiency improvements in this area. The purpose of this project is to obtain the technical knowledge needed to properly measure and understand the energy efficiency of these systems. This project has three specific objectives: to develop metrics and diagnostics for determining system efficiencies, to develop design and retrofit information that the building industry can use to improve these systems, and to determine the energy impacts associated with duct leakage airflows in an existing large commercial building. The primary outcome of this project is the confirmation that duct leakage airflows can significantly impact energy use in large commercial buildings: our measurements indicate that adding 15% duct leakage at operating conditions leads to an increase in fan power of about 25 to 35%. This finding is consistent with impacts of increased duct leakage airflows on fan power that have been predicted by previous simulations. Other project outcomes include the definition of a new metric for distribution system efficiency, the demonstration of a reliable test for determining duct leakage airflows, and the development of new techniques for duct sealing. We expect that the project outcomes will lead to new requirements for commercial thermal distribution system efficiency in future revisions of California's Title 24.

222

What's Energy Efficiency?  

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

Who "does" efficiency? There's no such thing as the profession of energy efficiency-in fact, many professions participate in making the world more efficient. Mechanical, chemical,...

223

Enhancing Thermal Conductivity and Reducing Friction  

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

Laboratory currently has several projects underway to develop advanced fluids, films, coatings, and Laboratory currently has several projects underway to develop advanced fluids, films, coatings, and processes to improve thermal conductivity and reduce friction. These measures are helping to increase energy efficiency for next-generation transportation applications. Superhard and Slick Coating (SSC) Opportunity: Friction, wear, and lubrication strongly affect the energy efficiency, durability, and environmental compatibility of

224

Program on Technology Innovation: Evaluation of Concentrating Solar Thermal Energy Storage Systems  

Science Conference Proceedings (OSTI)

Adding solar thermal energy storage to concentrating solar thermal power plants expands both the amount of power and the timing of production. With thermal energy storage, plant power output can be firmed and shaped to better match consumer demand for electricity. Thermal storage associated with these plants is typically much more efficient and cost-effective than electrical or mechanical forms of storage. In many cases, the addition of thermal energy storage can lower the levelized electricity productio...

2009-03-31T23:59:59.000Z

225

Electrical, Frequency and Thermal Measurement and Modelling of Supercapacitor Performance  

E-Print Network (OSTI)

Electrical, Frequency and Thermal Measurement and Modelling of Supercapacitor Performance Yasser--This paper presents an evaluation of commercial supercapacitors performance (ESR, C, self-discharge, Pmax, Emax, coulumbic efficiency, etc), under different conditions. Characterization of supercapacitor

Paris-Sud XI, Université de

226

Optimal control for maximum power in thermal and chemical systems  

Science Conference Proceedings (OSTI)

This research treats power optimization for energy converters, such like thermal, solar and chemical engines. Thermodynamic analyses lead to converter's efficiency and limiting power. Steady and dynamic systems are investigated. Static optimization of ...

Stanislaw Sieniutycz

2009-09-01T23:59:59.000Z

227

MoWiTT: The Mobile Window Thermal Test Facility  

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

Airflow schematic MoWiTT: The Mobile Window Thermal Test Facility In the MoWiTT facility, efficient window-and-frame systems are measured to understand the flow of energy through...

228

Solar and Energy Efficiency Justice | Department of Energy  

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

and Energy Efficiency Justice and Energy Efficiency Justice Solar and Energy Efficiency Justice June 24, 2010 - 3:00pm Addthis The roof of the justice center where a solar panel array will be installed to power a solar thermal water-heating system | Photo courtesy of Blount County, Tenn. The roof of the justice center where a solar panel array will be installed to power a solar thermal water-heating system | Photo courtesy of Blount County, Tenn. A solar thermal water-heating system at the justice center in Maryville, Tenn., is helping to reduce energy consumption and cut costs for Blount County. Funded by $300,000 of the $501,600 Energy Efficiency and Conservation Block Grant (EECBG) awarded to Blount County through the Recovery Act, the solar thermal water-heating system will retrofit the detention facility's

229

Design and global optimization of high-efficiency thermophotovoltaic systems  

E-Print Network (OSTI)

Despite their great promise, small experimental thermophotovoltaic (TPV) systems at 1000 K generally exhibit extremely low power conversion efficiencies (approximately 1%), due to heat losses such as thermal emission of ...

Bermel, Peter A.

230

Energy efficient data centers  

E-Print Network (OSTI)

Efficiency kW/ton Fan Coil Unit Design Efficiency CFM/kWEfficiency kW/ton Fan Coil Unit Design Efficiency CFM/kWEfficiency kW/ton Fan Coil Unit Design Efficiency CFM/kW

Tschudi, William; Xu, Tengfang; Sartor, Dale; Koomey, Jon; Nordman, Bruce; Sezgen, Osman

2004-01-01T23:59:59.000Z

231

Variable emissivity laser thermal control system  

DOE Patents (OSTI)

A laser thermal control system for a metal vapor laser maintains the wall temperature of the laser at a desired level by changing the effective emissivity of the water cooling jacket. This capability increases the overall efficiency of the laser. 8 figs.

Milner, J.R.

1994-10-25T23:59:59.000Z

232

Predicting the distribution of thermal comfort votes  

Science Conference Proceedings (OSTI)

Maximizing occupant comfort and minimizing energy costs are two challenging tasks in the efficient operation of any office building. Often these objectives cannot be achieved simultaneously which asks for methods that resolve this trade-off in the best ... Keywords: decision support systems, intelligent systems, thermal comfort

Anika Schumann; Nic Wilson

2011-06-01T23:59:59.000Z

233

Roadmap towards ultimately-efficient zeta-scale datacenters  

Science Conference Proceedings (OSTI)

Chip microscale liquid-cooling reduces thermal resistance and improves datacenter efficiency with higher coolant temperatures by eliminating chillers and allowing thermal energy re-use in cold climates. Liquid cooling enables an unprecedented density ... Keywords: cooling, datacenter, energy, packaging, power-supply, reuse, stacking

Patrick Ruch, Thomas Brunschwiler, Stephan Paredes, Ingmar Meijer, Bruno Michel

2013-03-01T23:59:59.000Z

234

Thermal Storage with Conventional Cooling Systems  

E-Print Network (OSTI)

The newly opened Pennsylvania Convention Center in Philadelphia, PA; Exxon's Computer Facility at Florham Park, NJ; The Center Square Building in Philadelphia, are success stories for demand shifting through thermal storage. These buildings employ a simple thermal energy storage system that already exists in almost every structure - concrete. Thermal storage calculations simulate sub-cooling of a building's structure during unoccupied times. During occupied times, the sub-cooled concrete reduces peak cooling demand, thereby lowering demand and saving money. In addition, significant savings are possible in the first cost of chilled water equipment, and the smaller chillers run at peak capacity and efficiency during a greater portion of their run time. The building, controlled by an Energy Management and Control System (EMCS), "learns" from past experience how to run the building efficiently. The result is an optimized balance between energy cost and comfort.

Kieninger, R. T.

1994-01-01T23:59:59.000Z

235

HIGH EFFICIENCY SYNGAS GENERATION  

DOE Green Energy (OSTI)

This project investigated an efficient and low cost method of auto-thermally reforming natural gas to hydrogen and carbon monoxide. Reforming is the highest cost step in producing products such as methanol and Fisher Tropsch liquids (i.e., gas to liquids); and reducing the cost of reforming is the key to reducing the cost of these products. Steam reforming is expensive because of the high cost of the high nickel alloy reforming tubes (i.e., indirectly fired reforming tubes). Conventional auto-thermal or Partial Oxidation (POX) reforming minimizes the size and cost of the reformers and provides a near optimum mixture of CO and hydrogen. However POX requires pure oxygen, which consumes power and significantly increases the cost to reforming. Our high efficiency process extracts oxygen from low-pressure air with novel oxygen sorbent and transfers the oxygen to a nickel-catalyzed reformer. The syngas is generated at process pressure (typically 20 to 40 bar) without nitrogen dilution and has a 1CO to 2H{sub 2} ratio that is near optimum for the subsequent production of Fisher-Tropsch liquid to liquids and other chemicals (i.e., Gas to Liquids, GTL). Our high process efficiency comes from the way we transfer the oxygen into the reformer. All of the components of the process, except for the oxygen sorbent, are commonly used in commercial practice. A process based on a longlived, regenerable, oxygen transfer sorbent could substantially reduce the cost of natural gas reforming to syngas. Lower cost syngas (CO + 2H{sub 2}) that is the feedstock for GTL would reduce the cost of GTL and for other commercial applications (e.g., methanol, other organic chemicals). The vast gas resources of Alaska's North Slope (ANS) offer more than 22 Tcf of gas and GTL production in this application alone, and could account for as much as 300,000 to 700,000 bpd for 20 to 30+ years. We developed a new sorbent, which is an essential part of the High Efficiency Oxygen Process (HOP). We tested the sorbent and observed that it has both a good oxygen capacity and operates as a highly effective reforming catalyst. We conducted a long duration tests of the sorbent (1,500 hours of continuous operation in the HOP cycle). Although the sorbent lost some oxygen capacity with cycling, the sorbent oxygen capacity stabilized after 1,000 hours and remained constant to the end of the test, 1,500 hour. The activity of the catalyst to reform methane to a hydrogen and carbon monoxide mixture was unchanged through the oxidation/reduction cycling. Our cost and performance analyses indicated a significant reduction in the cost of GTL production when using the HOP process integrated into a GTL plant.

Robert J. Copeland; Yevgenia Gershanovich; Brian Windecker

2005-02-01T23:59:59.000Z

236

Thermal and Electrical Transport in Oxide Heterostructures  

E-Print Network (OSTI)

of thermal conductivity . . . . . . . . . . . . . . . .4.4 Thermal transport in2.3.2 Thermal transport . . . . . . . . . . . . . . . .

Ravichandran, Jayakanth

2011-01-01T23:59:59.000Z

237

Thermal contact resistance  

E-Print Network (OSTI)

This work deals with phenomena of thermal resistance for metallic surfaces in contact. The main concern of the work is to develop reliable and practical methods for prediction of the thermal contact resistance for various ...

Mikic, B. B.

1966-01-01T23:59:59.000Z

238

Thermal Management of Solar Cells  

E-Print Network (OSTI)

phonon transmission and interface thermal conductance acrossF. Miao, et al. , "Superior Thermal Conductivity of Single-Advanced Materials for Thermal Management of Electronic

Saadah, Mohammed Ahmed

2013-01-01T23:59:59.000Z

239

Nuclear Power and the Environment - Energy Explained, Your Guide To  

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

Explained > Nonrenewable Sources > Nuclear > Nuclear Power & the Environment Explained > Nonrenewable Sources > Nuclear > Nuclear Power & the Environment Energy Explained - Home What Is Energy? Forms of Energy Sources of Energy Laws of Energy Units and Calculators Energy Conversion Calculators British Thermal Units (Btu) Degree-Days U.S. Energy Facts State and U.S. Territory Data Use of Energy In Industry For Transportation In Homes In Commercial Buildings Efficiency and Conservation Energy and the Environment Greenhouse Gases Effect on the Climate Where Emissions Come From Outlook for Future Emissions Recycling and Energy Nonrenewable Sources Oil and Petroleum Products Refining Crude Oil Where Our Oil Comes From Imports and Exports Offshore Oil and Gas Use of Oil Prices and Outlook Oil and the Environment Gasoline Where Our Gasoline Comes From

240

Thermal Spray Coatings  

Science Conference Proceedings (OSTI)

Table 35   Thermal spray coatings used for hardfacing applications...piston ring (internal combustion);

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Plasma-Thermal Synthesis  

INLs Plasma-Thermal Synthesis process improves the conversion process for natural gas into liquid hydrocarbon fuels.

242

Ocean Thermal Energy Conversion  

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

A process called ocean thermal energy conversion (OTEC) uses the heat energy stored in the Earth's oceans to generate electricity.

243

Nanocomposite Thermal Spray Coatings.  

Science Conference Proceedings (OSTI)

Long-Term Surface Restoration Effect Introduced by Advanced Lubricant Additive Nanocomposite Thermal Spray Coatings. New Hardfacing Overlay Claddings...

244

Solar efficient structure  

Science Conference Proceedings (OSTI)

A solar efficient structure is disclosed which comprises a central chase positioned vertically within the structure and connected in fluid communication with a duct network positioned in thermal contact with the ground and with the attic of the structure. A fan is provided for circulating air through a perforated attic duct, through the various rooms of the structure, and through the duct network and the chase. In one embodiment, the fan is reversible so as to circulate the air in one direction, or in the other direction. When operating in the heating mode, the ground acts as a heat source to heat the air circulating through the duct network. Conversely, when operating in the cooling mode, the ground acts as a heat sink to cool the airflow circulating therethrough. A dehumidifier, and a heating or cooling means is provided for assisting in the conditioning of the circulating airflow. In one embodiment, the heating means comprises a greenhouse room which permits ultraviolet radiation to enter and heat the air contained therein, and a damper means for controlling the flow rate of the air circulating through the greenhouse room. The structure is fully insulated and includes a vent skin positioned about the exterior walls and the roof thereof. A method is disclosed for insulating the roof line with loose insulation.

Arenas, F.B.

1985-02-12T23:59:59.000Z

245

Thermal neutron detection system  

DOE Patents (OSTI)

According to the present invention, a system for measuring a thermal neutron emission from a neutron source, has a reflector/moderator proximate the neutron source that reflects and moderates neutrons from the neutron source. The reflector/moderator further directs thermal neutrons toward an unmoderated thermal neutron detector.

Peurrung, Anthony J. (Richland, WA); Stromswold, David C. (West Richland, WA)

2000-01-01T23:59:59.000Z

246

Underground Coal Thermal Treatment  

Science Conference Proceedings (OSTI)

The long-term objective of this work is to develop a transformational energy production technology by insitu thermal treatment of a coal seam for the production of substitute natural gas (SNG) while leaving much of the coal??s carbon in the ground. This process converts coal to a high-efficiency, low-GHG emitting gas fuel. It holds the potential of providing environmentally acceptable access to previously unusable coal resources. This topical report discusses the development of experimental capabilities, the collection of available data, and the development of simulation tools to obtain process thermo-chemical and geo-thermal parameters in preparation for the eventual demonstration in a coal seam. It also includes experimental and modeling studies of CO{sub 2} sequestration. Efforts focused on: ? Constructing a suite of three different coal pyrolysis reactors. These reactors offer the ability to gather heat transfer, mass transfer and kinetic data during coal pyrolysis under conditions that mimic in situ conditions (Subtask 6.1). ? Studying the operational parameters for various underground thermal treatment processes for oil shale and coal and completing a design matrix analysis for the underground coal thermal treatment (UCTT). This analysis yielded recommendations for terms of targeted coal rank, well orientation, rubblization, presence of oxygen, temperature, pressure, and heating sources (Subtask 6.2). ? Developing capabilities for simulating UCTT, including modifying the geometry as well as the solution algorithm to achieve long simulation times in a rubblized coal bed by resolving the convective channels occurring in the representative domain (Subtask 6.3). ? Studying the reactive behavior of carbon dioxide (CO{sub 2}) with limestone, sandstone, arkose (a more complex sandstone) and peridotite, including mineralogical changes and brine chemistry for the different initial rock compositions (Subtask 6.4). Arkose exhibited the highest tendency of participating in mineral reactions, which can be attributed to the geochemical complexity of its initial mineral assemblage. In experiments with limestone, continuous dissolution was observed with the release of CO{sub 2} gas, indicated by the increasing pressure in the reactor (formation of a gas chamber). This occurred due to the lack of any source of alkali to buffer the solution. Arkose has the geochemical complexity for permanent sequestration of CO{sub 2} as carbonates and is also relatively abundant. The effect of including NH{sub 3} in the injected gas stream was also investigated in this study. Precipitation of calcite and trace amounts of ammonium zeolites was observed. A batch geochemical model was developed using Geochemists Workbench (GWB). Degassing effect in the experiments was corrected using the sliding fugacity model in GWB. Experimental and simulation results were compared and a reasonable agreement between the two was observed.

P. Smith; M. Deo; E. Eddings; A. Sarofim; K. Gueishen; M. Hradisky; K. Kelly; P. Mandalaparty; H. Zhang

2011-10-30T23:59:59.000Z

247

Power Electronics and Thermal Management Breakout Sessions  

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

POWER ELECTRONICS AND THERMAL POWER ELECTRONICS AND THERMAL MANAGEMENT EV Everywhere Workshop July 24, 2012 Breakout Session #1 - Discussion of Performance Targets and Barriers Comments on the Achievability of the Targets * Performance: Is achievable with these assumptions * Production Cost: $8/KW is achievable for PHEV40 and BEV300, $14/KW is okay for BEV100 * Production Efficiency: 95% system efficiency might be achievable * It is easier to achieve performance than cost targets * Integration of the different functionalities can help with achieving the targets * What is efficiency worth? What price do we place on it? Barriers Interfering with Reaching the Targets * Capacitors and magnetics (materials, performance, temperature, size, frequency, packaging) * Material cost, capacitors and magnetics are the priority

248

Refines Efficiency Improvement  

Science Conference Proceedings (OSTI)

Refinery processes that convert heavy oils to lighter distillate fuels require heating for distillation, hydrogen addition or carbon rejection (coking). Efficiency is limited by the formation of insoluble carbon-rich coke deposits. Heat exchangers and other refinery units must be shut down for mechanical coke removal, resulting in a significant loss of output and revenue. When a residuum is heated above the temperature at which pyrolysis occurs (340 C, 650 F), there is typically an induction period before coke formation begins (Magaril and Aksenova 1968, Wiehe 1993). To avoid fouling, refiners often stop heating a residuum before coke formation begins, using arbitrary criteria. In many cases, this heating is stopped sooner than need be, resulting in less than maximum product yield. Western Research Institute (WRI) has developed innovative Coking Index concepts (patent pending) which can be used for process control by refiners to heat residua to the threshold, but not beyond the point at which coke formation begins when petroleum residua materials are heated at pyrolysis temperatures (Schabron et al. 2001). The development of this universal predictor solves a long standing problem in petroleum refining. These Coking Indexes have great potential value in improving the efficiency of distillation processes. The Coking Indexes were found to apply to residua in a universal manner, and the theoretical basis for the indexes has been established (Schabron et al. 2001a, 2001b, 2001c). For the first time, a few simple measurements indicates how close undesired coke formation is on the coke formation induction time line. The Coking Indexes can lead to new process controls that can improve refinery distillation efficiency by several percentage points. Petroleum residua consist of an ordered continuum of solvated polar materials usually referred to as asphaltenes dispersed in a lower polarity solvent phase held together by intermediate polarity materials usually referred to as resins. The Coking Indexes focus on the amount of these intermediate polarity species since coke formation begins when these are depleted. Currently the Coking Indexes are determined by either titration or solubility measurements which must be performed in a laboratory. In the current work, various spectral, microscopic, and thermal techniques possibly leading to on-line analysis were explored for measuring the Coking Indexes.

WRI

2002-05-15T23:59:59.000Z

249

Building Energy Software Tools Directory: Thermal Comfort  

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

Thermal Comfort Thermal Comfort logo. Provides a user-friendly interface for calculating thermal comfort parameters and making thermal comfort predictions using several thermal...

250

Thermally efficient PEM fuel cell that runs on ethanol  

onboard conversion of ethanol into hydrogen fuel Liquid ethanol feedstock eliminates problems with storage and transportation of gaseous hydrogen Control of temperature maximizes selectivity of reformation process and prevents membrane fouling ...

251

Near Zero Emissions at 50 Percent Thermal Efficiency  

DOE Green Energy (OSTI)

? The combustion system development continued with evaluation of various designs of the 2-step piston bowl. Significant improvemen

None

2012-12-31T23:59:59.000Z

252

Thermally efficient PEM fuel cell that runs on ethanol  

PEM fuel cell with onboard conversion of ethanol into hydrogen fuel Liquid ethanol feedstock eliminates problems with storage and transportation of gaseous hydrogen Control of temperature maximizes selectivity of reformation process and prevents ...

253

A thermally efficient micro-reactor for thermophotovoltaic power generation  

E-Print Network (OSTI)

Hydrocarbon fuels exhibit very high energy densities, and micro-generators converting the stored chemical energy into electrical power are interesting alternatives to batteries in certain applications. The increasing demands ...

Nielsen, Ole Mattis, 1977-

2006-01-01T23:59:59.000Z

254

DCEO - Thermal Efficiency Program for Public Facilities (Illinois...  

Open Energy Info (EERE)

quality, applicant capacity, feasibility of project plan, economic development (job creation), energy reduction, green house gas emission reductions, cost-effectiveness, project...

255

Efficient Thermal Energy Distribution in Commercial Final Report  

E-Print Network (OSTI)

cconolllic studics havc shown, dccp rcductions in CO2 cmissions can nc achicvcd with cxisting tcchnologics cconomy or today's c.lrs thaI havc thc salnc pcrrormanl:C. nut lhcy would c(}sl 11()morc to own control for fucl-hound nitrogen would hc Icss costly for hiomass than for coal. Typical co.lls havc

256

Thermally efficient melting and fuel reforming for glass making  

DOE Patents (OSTI)

An integrated process is described for utilizing waste heat from a glass making furnace. The hot off-gas from the furnace is initially partially cooled, then fed to a reformer. In the reformer, the partially cooled off-gas is further cooled against a hydrocarbon which is thus reformed into a synthesis gas, which is then fed into the glass making furnace as a fuel. The further cooled off-gas is then recycled back to absorb the heat from the hot off-gas to perform the initial cooling. 2 figures.

Chen, M.S.; Painter, C.F.; Pastore, S.P.; Roth, G.S.; Winchester, D.C.

1991-10-15T23:59:59.000Z

257

Power efficiency for very high temperature solar thermal cavity receivers  

DOE Patents (OSTI)

This invention is an improved solar energy cavity receiver for exposing materials and components to high temperatures. The receiver includes a housing having an internal reflective surface defining a cavity and having an inlet for admitting solar radiation thereto. A photothermal absorber is positioned in the cavity to receive radiation from the inlet. A reflective baffle is positioned between the absorber and the inlet to severely restrict the re-radiation of energy through the inlet. The front surface of the baffle defines a narrow annulus with the internal reflective surface of the housing. The front surface of the baffle is contoured to reflect incoming radiation onto the internal surface of the housing, from which it is reflected through the annulus and onto the front surface of the absorber. The back surface of the baffle intercepts infrared radiation from the front of the absorber. With this arrangement, a high percentage of the solar power input is retained in the cavity; thus, high internal temperatures are attained.

McDougal, Allan R. (LaCanada-Flintridge, CA); Hale, Robert R. (Upland, CA)

1984-01-01T23:59:59.000Z

258

NREL: Fleet Test and Evaluation - Truck Efficiency  

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

Efficiency Efficiency The Fleet Test and Evaluation team is working with industry partners to evaluate truck efficiency technologies in long-haul truck cabs. To keep their cabs at a comfortable temperature, heavy-duty truck drivers idle their engines an average of 1,400 hours annually, using more than 800 million gallons of fuel each year. With diesel prices at an all-time high, carrier companies are looking into ways to incorporate truck efficiency technologies to eliminate engine idling. By doing so, they not only save money on fuel but reduce tailpipe emissions. To find ways trucks can be more efficient without idling, the Fleet Test and Evaluation team is researching: Thermal Load Reduction Idle Reduction Printable Version Fleet Test and Evaluation Home Research & Development

259

Energy Efficient Motors  

E-Print Network (OSTI)

Efficiency is only one aspect of motor performance. This paper discusses how efficiency is influenced by such factors as horsepower rating, poles, actual load, and starting requirements. It discusses some of the variables affecting efficiency, and how to interpret efficiency data. A perspective is given from which to evaluate available energy efficient motor offerings for a given application.

Hoffmeyer, W.

1982-01-01T23:59:59.000Z

260

SIMULATION OF THE THERMAL INTERACTION BETWEEN A BUILDING INTEGRATED PHOTOVOLTAIC COLLECTOR AND AN AIR-  

E-Print Network (OSTI)

, the storage of thermal energy is used to increase the efficiency of heating and cooling of buildings that convert solar thermal energy to electrical power. The heat capacity of a solid material is mostly of heat with the surroundings. This exchange of heat can be used to store thermal energy. Currently

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Fast algorithms for thermal constrained performance optimization in DAG scheduling on multi-core processors  

Science Conference Proceedings (OSTI)

Thermal management is highly crucial for efficient exploitation of the potentially enormous computational power offered by advanced multi-core processors. Higher temperatures can adversely affect these processors. Without any thermal constraint, a task ... Keywords: application-oriented task graphs, DAG scheduling, thermal constrained performance optimization, advanced multicore processors, PAVD, TAVD, greedy-based approach

H. F. Sheikh; I. Ahmad

2011-07-01T23:59:59.000Z

262

Holographic technology could increase solar efficiency | Department of  

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

Holographic technology could increase solar efficiency Holographic technology could increase solar efficiency Holographic technology could increase solar efficiency October 12, 2010 - 1:00pm Addthis Luminit's co-generation technology could combine photovoltaics (shown in this file photo) and solar thermal energy. | File photo Luminit's co-generation technology could combine photovoltaics (shown in this file photo) and solar thermal energy. | File photo Lorelei Laird Writer, Energy Empowers Co-generation technology could combine photovoltaics and solar thermal Luminit's technology bends and redirects sunlight to produce energy Research funded by Small Business Innovation Research grant There are two major technologies in solar energy: photovoltaics and solar thermal. Most people are more familiar with photovoltaics (PV) - the flat solar

263

Energy efficient data centers  

E-Print Network (OSTI)

Sealing floor openings can improve efficiency by directing airSealing floor openings can improve efficiency by directing airSealing floor openings can improve efficiency by directing air

Tschudi, William; Xu, Tengfang; Sartor, Dale; Koomey, Jon; Nordman, Bruce; Sezgen, Osman

2004-01-01T23:59:59.000Z

264

OPTIONS for ENERGY EFFICIENCY  

E-Print Network (OSTI)

OPTIONS for ENERGY EFFICIENCY in EXISTING BUILDINGS December 2005 CEC-400-2005-039-CMF;OPTIONS FOR ENERGY EFFICIENCY in EXISTING BUILDINGS COMMISSION REPORT TABLE OF CONTENTS EXECUTIVE SUMMARY ............................................................................iii California's Successful Energy Efficiency Programs

265

Energy Efficiency Manual  

E-Print Network (OSTI)

Review: Energy Efficiency Manual By Donald R. WulfinghoffR. Energy Efficiency Manual. Wheaton, MD: Energy InstituteThe Energy Efficiency Manual offers up-to-date and practical

Weintraub, Irwin

2000-01-01T23:59:59.000Z

266

IMPROVEMENT OF THERMAL STABILITY OF LI-ION BATTERIES BY  

E-Print Network (OSTI)

and Commercial Building End-Use Energy Efficiency · Industrial/Agricultural/Water End-Use Energy EfficiencyIMPROVEMENT OF THERMAL STABILITY OF LI-ION BATTERIES BY POLYMER COATING OF LIMN2O4 Prepared For: California Energy Commission Energy Innovations Small Grant Program Prepared By: Pieter Stroeve, UC Davis

267

Using SVM based method for equipment fault detection in a thermal power plant  

Science Conference Proceedings (OSTI)

Due to the growing demand on electricity, how to improve the efficiency of equipment in a thermal power plant has become one of the critical issues. Reports indicate that efficiency and availability are heavily dependant upon high reliability and maintainability. ... Keywords: Classification, Data mining, Maintenance, Support vector machines, Thermal power

Kai-Ying Chen; Long-Sheng Chen; Mu-Chen Chen; Chia-Lung Lee

2011-01-01T23:59:59.000Z

268

Experiment study on single-pass photovoltaic-thermal (PV/T) air collector with absorber  

Science Conference Proceedings (OSTI)

Problem statement: Solar cell received heat from solar irradiance as well and this will reduce the efficiency of the solar cell. The heat trap at the solar photovoltaic panel becomes waste energy. Approach: The solution for this was by adding a cooling ... Keywords: air collector, photovoltaic thermal, rectangle tunnel absorber, thermal efficiency

Goh Li Jin; Hafidz Ruslan; Sohif Mat; Mohd. Yusof Othman; Azami Zaharim; Kamaruzzaman Sopian

2010-10-01T23:59:59.000Z

269

Appliance Efficiency Standards  

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

Appliance Efficiency Standards Part 1 of 2 In the National Energy Policy Conservation Act (1978), Congress required DOE to set energy-efficiency standards for 13 residential...

270

What's Energy Efficiency?  

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

Berkeley Laboratory and Energy Efficiency Whether you know it or not, the chances are that you've encountered energy-efficient technology developed by Lawrence Berkeley National...

271

Efficiency of Electric Motors  

Science Conference Proceedings (OSTI)

... the EEM program addresses testing the efficiency of electric ... 1 of Canadian Standards Association (CSA) Standard C390, 'Energy Efficient Test ...

2013-08-16T23:59:59.000Z

272

What's Energy Efficiency?  

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

Why is energy efficiency the most abundant, cheapest way to reduce greenhouse gas (GHG) emissions? Anywhere energy is used, there are opportunities to increase efficiency. In most...

273

What's Energy Efficiency?  

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

Links Here are some other organizations that study or otherwise support energy efficiency. Find out more about efficiency's potential to reduce GHG emissions, increase economic...

274

Catalytic thermal barrier coatings  

Science Conference Proceedings (OSTI)

A catalyst element (30) for high temperature applications such as a gas turbine engine. The catalyst element includes a metal substrate such as a tube (32) having a layer of ceramic thermal barrier coating material (34) disposed on the substrate for thermally insulating the metal substrate from a high temperature fuel/air mixture. The ceramic thermal barrier coating material is formed of a crystal structure populated with base elements but with selected sites of the crystal structure being populated by substitute ions selected to allow the ceramic thermal barrier coating material to catalytically react the fuel-air mixture at a higher rate than would the base compound without the ionic substitutions. Precious metal crystallites may be disposed within the crystal structure to allow the ceramic thermal barrier coating material to catalytically react the fuel-air mixture at a lower light-off temperature than would the ceramic thermal barrier coating material without the precious metal crystallites.

Kulkarni, Anand A. (Orlando, FL); Campbell, Christian X. (Orlando, FL); Subramanian, Ramesh (Oviedo, FL)

2009-06-02T23:59:59.000Z

275

Efficiency Maine Multifamily Efficiency Program (Maine) | Open...  

Open Energy Info (EERE)

MeasuresWhole Building Active Incentive Yes Implementing Sector StateTerritory Energy Category Energy Efficiency Incentive Programs Amount Upon approval of Energy Reduction...

276

Thermally Conductive Graphite Foam  

oriented graphite planes, similar to high performance carbon fibers, which have been estimated to exhibit a thermal conductivity greater than 1700 ...

277

Thermal Barrier Coatings  

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

Thermal Barrier Coatings Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking licensing partners interested in implementing United States...

278

Energy efficient data centers  

E-Print Network (OSTI)

cogeneration can improve reliability and increase chiller efficiency (by using waste heat) for larger data centers.

Tschudi, William; Xu, Tengfang; Sartor, Dale; Koomey, Jon; Nordman, Bruce; Sezgen, Osman

2004-01-01T23:59:59.000Z

279

Thermal mass performance in residential construction : an energy analysis using a cube model; Energy analysis using a cube model.  

E-Print Network (OSTI)

??Given the pervasiveness of energy efficiency concerns in the built environment, this research aims to answer key questions regarding the performance of thermal mass construction. (more)

Ledwith, Alison C. (Alison Catherine)

2012-01-01T23:59:59.000Z

280

Validation of the thermal effect of roof with the Spraying and green plants in an insulated building  

E-Print Network (OSTI)

of the insulation efficiency of the RC building. Windfor an RC building with a high degree of insulation in thebuildings have insulating material to provide thermal insulation

Zhou, Nan; Gao, Weijun; Nishida, Masaru; Ojima, Toshio

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Variable pressure thermal insulating jacket  

DOE Patents (OSTI)

A device for controlled insulation of a thermal device. The device includes a thermal jacket with a closed volume able to be evacuated to form an insulating jacket around the thermal source. A getter material is in communcation with the closed volume of the thermal jacket. The getter material can absorb and desorb a control gas to control gas pressure in the volume of the thermal jacket to control thermal conductivity in the thermal jacket.

Nelson, Paul A. (Wheaton, IL); Malecha, Richard F. (Naperville, IL); Chilenskas, Albert A. (Chicago, IL)

1994-01-01T23:59:59.000Z

282

Variable pressure thermal insulating jacket  

DOE Patents (OSTI)

A device for controlled insulation of a thermal device is disclosed. The device includes a thermal jacket with a closed volume able to be evacuated to form an insulating jacket around the thermal source. A getter material is in communication with the closed volume of the thermal jacket. The getter material can absorb and desorb a control gas to control gas pressure in the volume of the thermal jacket to control thermal conductivity in the thermal jacket. 10 figs.

Nelson, P.A.; Malecha, R.F.; Chilenskas, A.A.

1994-09-20T23:59:59.000Z

283

Industrial Energy Efficiency Assessments  

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

Energy Efficiency Energy Efficiency Assessments Lynn Price Staff Scientist China Energy Group Energy Analysis Department Environmental Energy Technologies Division Lawrence Berkeley National Laboratory Industrial Energy Efficiency Assessments - Definition and overview of key components - International experience - Chinese situation and recommendations - US-China collaboration Industrial Energy Efficiency Assessments - Analysis of the use of energy and potential for energy efficiency in an industrial facility * Current situation * Recommendations for improving energy efficiency * Cost-benefit analysis of recommended options * An action plan for realizing potential savings Types of Industrial Energy Efficiency Assessments - Preliminary or walk-through - Detailed or diagnostic Audit criteria

284

Empirical Methodologies for Improving HVAC Efficiency  

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

Empirical Methodologies for Improving HVAC Efficiency Empirical Methodologies for Improving HVAC Efficiency Speaker(s): Anil Aswani Date: September 21, 2012 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Michael Wetter This talk describes the use of empirical methodologies that we have developed for the purpose of improving heating, ventilation, and air-conditioning (HVAC) efficiency through better control algorithms and configuration. We show that semiparametric regression can both identify simplified models of thermal HVAC dynamics while also estimating time-varying heating loads using only real-time temperature measurements from thermostats. These models can be used with our learning-based model predictive control (LBMPC) method in order to improve the energy-efficiency of HVAC. Experiments on testbeds with different types of HVAC show the

285

Amulaire Thermal Technology | Open Energy Information  

Open Energy Info (EERE)

Amulaire Thermal Technology Amulaire Thermal Technology Jump to: navigation, search Name Amulaire Thermal Technology Address 11555 Sorrento Valley Road Place San Diego, California Zip 92121 Sector Efficiency Product Makes heat-dissipation products used in liquid cooling systems Website http://www.amulaire.com/ Coordinates 32.912393°, -117.231201° 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":32.912393,"lon":-117.231201,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

286

Gas storage carbon with enhanced thermal conductivity  

DOE Patents (OSTI)

A carbon fiber carbon matrix hybrid adsorbent monolith with enhanced thermal conductivity for storing and releasing gas through adsorption and desorption is disclosed. The heat of adsorption of the gas species being adsorbed is sufficiently large to cause hybrid monolith heating during adsorption and hybrid monolith cooling during desorption which significantly reduces the storage capacity of the hybrid monolith, or efficiency and economics of a gas separation process. The extent of this phenomenon depends, to a large extent, on the thermal conductivity of the adsorbent hybrid monolith. This invention is a hybrid version of a carbon fiber monolith, which offers significant enhancements to thermal conductivity and potential for improved gas separation and storage systems.

Burchell, Timothy D. (Oak Ridge, TN); Rogers, Michael Ray (Knoxville, TN); Judkins, Roddie R. (Knoxville, TN)

2000-01-01T23:59:59.000Z

287

Thermal protection apparatus  

DOE Patents (OSTI)

An apparatus which thermally protects sensitive components in tools used in a geothermal borehole. The apparatus comprises a Dewar within a housing. The Dewar contains heat pipes such as brass heat pipes for thermally conducting heat from heat sensitive components to a heat sink such as ice.

Bennett, Gloria A. (Los Alamos, NM); Elder, Michael G. (Los Alamos, NM); Kemme, Joseph E. (Albuquerque, NM)

1985-01-01T23:59:59.000Z

288

Thermal protection apparatus  

DOE Patents (OSTI)

The disclosure is directed to an apparatus for thermally protecting sensitive components in tools used in a geothermal borehole. The apparatus comprises a Dewar within a housing. The Dewar contains heat pipes such as brass heat pipes for thermally conducting heat from heat sensitive components such as electronics to a heat sink such as ice.

Bennett, G.A.; Elder, M.G.; Kemme, J.E.

1984-03-20T23:59:59.000Z

289

Thermal masses in leptogenesis  

E-Print Network (OSTI)

We investigate the validity of using thermal masses in the kinematics of final states in the decay rate of heavy neutrinos in leptogenesis calculations. We find that using thermal masses this way is a reasonable approximation, but corrections arise through quantum statistical distribution functions and leptonic quasiparticles.

Kiessig, Clemens P

2009-01-01T23:59:59.000Z

290

Thermal treatment wall  

DOE Patents (OSTI)

A thermal treatment wall emplaced to perform in-situ destruction of contaminants in groundwater. Thermal destruction of specific contaminants occurs by hydrous pyrolysis/oxidation at temperatures achievable by existing thermal remediation techniques (electrical heating or steam injection) in the presence of oxygen or soil mineral oxidants, such as MnO.sub.2. The thermal treatment wall can be installed in a variety of configurations depending on the specific objectives, and can be used for groundwater cleanup, wherein in-situ destruction of contaminants is carried out rather than extracting contaminated fluids to the surface, where they are to be cleaned. In addition, the thermal treatment wall can be used for both plume interdiction and near-wellhead in-situ groundwater treatment. Thus, this technique can be utilized for a variety of groundwater contamination problems.

Aines, Roger D. (Livermore, CA); Newmark, Robin L. (Livermore, CA); Knauss, Kevin G. (Livermore, CA)

2000-01-01T23:59:59.000Z

291

Solar thermal aircraft  

DOE Patents (OSTI)

A solar thermal powered aircraft powered by heat energy from the sun. A heat engine, such as a Stirling engine, is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller. The heat engine has a thermal battery in thermal contact with it so that heat is supplied from the thermal battery. A solar concentrator, such as reflective parabolic trough, is movably connected to an optically transparent section of the aircraft body for receiving and concentrating solar energy from within the aircraft. Concentrated solar energy is collected by a heat collection and transport conduit, and heat transported to the thermal battery. A solar tracker includes a heliostat for determining optimal alignment with the sun, and a drive motor actuating the solar concentrator into optimal alignment with the sun based on a determination by the heliostat.

Bennett, Charles L. (Livermore, CA)

2007-09-18T23:59:59.000Z

292

Aquifer thermal energy storage: a survey  

DOE Green Energy (OSTI)

The disparity between energy production and demand in many power plants has led to increased research on the long-term, large-scale storage of thermal energy in aquifers. Field experiments have been conducted in Switzerland, France, the United States, Japan, and the People's Republic of China to study various technical aspects of aquifer storage of both hot and cold water. Furthermore, feasibility studies now in progress include technical, economic, and environmental analyses, regional exploration to locate favorable storage sites, and evaluation and design of pilot plants. Several theoretical and modeling studies are also under way. Among the topics being studied using numerical models are fluid and heat flow, dispersion, land subsidence or uplift, the efficiency of different injection/withdrawal schemes, buoyancy tilting, numerical dispersion, the use of compensation wells to counter regional flow, steam injection, and storage in narrow glacial deposits of high permeability. Experiments to date illustrate the need for further research and development to ensure successful implementation of an aquifer storage system. Some of the areas identified for further research include shape and location of the hydrodynamic and thermal fronts, choice of appropriate aquifers, thermal dispersion, possibility of land subsidence or uplift, thermal pollution, water chemistry, wellbore plugging and heat exchange efficiency, and control of corrosion.

Tsang, C.F.; Hopkins, D.; Hellstroem, G.

1980-01-01T23:59:59.000Z

293

Thermally-related safety issues associated with thermal batteries.  

DOE Green Energy (OSTI)

Thermal batteries can experience thermal runaway under certain usage conditions. This can lead to safety issues for personnel and cause damage to associated test equipment if the battery thermally self destructs. This report discusses a number of thermal and design related issues that can lead to catastrophic destruction of thermal batteries under certain conditions. Contributing factors are identified and mitigating actions are presented to minimize or prevent undesirable thermal runaway.

Guidotti, Ronald Armand

2006-06-01T23:59:59.000Z

294

Advanced Energy Efficient Roof System  

SciTech Connect

Energy consumption in buildings represents 40 percent of primary U.S. energy consumption, split almost equally between residential (22%) and commercial (18%) buildings.1 Space heating (31%) and cooling (12%) account for approximately 9 quadrillion Btu. Improvements in the building envelope can have a significant impact on reducing energy consumption. Thermal losses (or gains) from the roof make up 14 percent of the building component energy load. Infiltration through the building envelope, including the roof, accounts for an additional 28 percent of the heating loads and 16 percent of the cooling loads. These figures provide a strong incentive to develop and implement more energy efficient roof systems. The roof is perhaps the most challenging component of the building envelope to change for many reasons. The engineered roof truss, which has been around since 1956, is relatively low cost and is the industry standard. The roof has multiple functions. A typical wood frame home lasts a long time. Building codes vary across the country. Customer and trade acceptance of new building products and materials may impede market penetration. The energy savings of a new roof system must be balanced with other requirements such as first and life-cycle costs, durability, appearance, and ease of construction. Conventional residential roof construction utilizes closely spaced roof trusses supporting a layer of sheathing and roofing materials. Gypsum board is typically attached to the lower chord of the trusses forming the finished ceiling for the occupied space. Often in warmer climates, the HVAC system and ducts are placed in the unconditioned and otherwise unusable attic. High temperature differentials and leaky ducts result in thermal losses. Penetrations through the ceilings are notoriously difficult to seal and lead to moisture and air infiltration. These issues all contribute to greater energy use and have led builders to consider construction of a conditioned attic. The options considered to date are not ideal. One approach is to insulate between the trusses at the roof plane. The construction process is time consuming and costs more than conventional attic construction. Moreover, the problems of air infiltration and thermal bridges across the insulation remain. Another approach is to use structurally insulated panels (SIPs), but conventional SIPs are unlikely to be the ultimate solution because an additional underlying support structure is required except for short spans. In addition, wood spline and metal locking joints can result in thermal bridges and gaps in the foam. This study undertook a more innovative approach to roof construction. The goal was to design and evaluate a modular energy efficient panelized roof system with the following attributes: (1) a conditioned and clear attic space for HVAC equipment and additional finished area in the attic; (2) manufactured panels that provide structure, insulation, and accommodate a variety of roofing materials; (3) panels that require support only at the ends; (4) optimal energy performance by minimizing thermal bridging and air infiltration; (5) minimal risk of moisture problems; (6) minimum 50-year life; (7) applicable to a range of house styles, climates and conditions; (8) easy erection in the field; (9) the option to incorporate factory-installed solar systems into the panel; and (10) lowest possible cost. A nationwide market study shows there is a defined market opportunity for such a panelized roof system with production and semi-custom builders in the United States. Senior personnel at top builders expressed interest in the performance attributes and indicate long-term opportunity exists if the system can deliver a clear value proposition. Specifically, builders are interested in (1) reducing construction cycle time (cost) and (2) offering increased energy efficiency to the homebuyer. Additional living space under the roof panels is another low-cost asset identified as part of the study. The market potential is enhanced through construction activity levels in target marke

Jane Davidson

2008-09-30T23:59:59.000Z

295

Department of Energy Lauds Highly Efficient Industrial Technology |  

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

Department of Energy Lauds Highly Efficient Industrial Technology Department of Energy Lauds Highly Efficient Industrial Technology Department of Energy Lauds Highly Efficient Industrial Technology November 30, 2007 - 4:45pm Addthis DOE Celebrates One-Year Anniversary of Operation of the Energy Efficient "Super Boiler" WASHINGTON, DC - Representing important technology transfer from Department of Energy (DOE) labs to the marketplace, DOE today announced the successful one-year operation of the first generation "Super Boiler," which can deliver 94 percent thermal efficiency, while producing fewer emissions than conventional boiler technologies. By 2020, this technology could save more than 185 trillion British Thermal Units (Btus) of energy - equivalent to the natural gas consumed by more than two million households. The

296

Department of Energy Lauds Highly Efficient Industrial Technology |  

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

Lauds Highly Efficient Industrial Technology Lauds Highly Efficient Industrial Technology Department of Energy Lauds Highly Efficient Industrial Technology November 30, 2007 - 4:45pm Addthis DOE Celebrates One-Year Anniversary of Operation of the Energy Efficient "Super Boiler" WASHINGTON, DC - Representing important technology transfer from Department of Energy (DOE) labs to the marketplace, DOE today announced the successful one-year operation of the first generation "Super Boiler," which can deliver 94 percent thermal efficiency, while producing fewer emissions than conventional boiler technologies. By 2020, this technology could save more than 185 trillion British Thermal Units (Btus) of energy - equivalent to the natural gas consumed by more than two million households. The

297

Research Article Building Thermal, Lighting,  

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

Article Building Thermal, Lighting, and Acoustics Modeling E-mail: yanda@tsinghua.edu.cn A detailed loads comparison of three building energy modeling programs: EnergyPlus, DeST and DOE-2.1E Dandan Zhu 1 , Tianzhen Hong 2 , Da Yan 1 (), Chuang Wang 1 1. Department of Building Science, School of Architecture, Tsinghua University, Beijing 100084, China 2. Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, CA 94720, USA Abstract Building energy simulation is widely used to help design energy efficient building envelopes and HVAC systems, develop and demonstrate compliance of building energy codes, and implement building energy rating programs. However, large discrepancies exist between simulation results

298

Damage Evolution in Thermal Barrier Coatings with Thermal Cycling  

Science Conference Proceedings (OSTI)

Abstract Scope, Thermal barrier coatings typically fail on cooling after prolonged thermal cycling by the growth of sub-critical interface separations. Observations...

299

Light Duty Efficient, Clean Combustion  

SciTech Connect

Cummins has successfully completed the Light Duty Efficient Clean Combustion (LDECC) cooperative program with DoE. This program was established in 2007 in support of the Department of Energy's Vehicles Technologies Advanced Combustion and Emissions Control initiative to remove critical barriers to the commercialization of advanced, high efficiency, emissions compliant internal combustion (IC) engines for light duty vehicles. Work in this area expanded the fundamental knowledge of engine combustion to new regimes and advanced the knowledge of fuel requirements for these diesel engines to realize their full potential. All of the following objectives were met with fuel efficiency improvement targets exceeded: (1) Improve light duty vehicle (5000 lb. test weight) fuel efficiency by 10.5% over today's state-of-the-art diesel engine on the FTP city drive cycle; (2) Develop and design an advanced combustion system plus aftertreatment system that synergistically meets Tier 2 Bin 5 NOx and PM emissions standards while demonstrating the efficiency improvements; (3) Maintain power density comparable to that of current conventional engines for the applicable vehicle class; and (4) Evaluate different fuel components and ensure combustion system compatibility with commercially available biofuels. Key accomplishments include: (1) A 25% improvement in fuel efficiency was achieved with the advanced LDECC engine equipped with a novel SCR aftertreatment system compared to the 10.5% target; (2) An 11% improvement in fuel efficiency was achieved with the advanced LDECC engine and no NOx aftertreamtent system; (3) Tier 2 Bin 5 and SFTP II emissions regulations were met with the advanced LDECC engine equipped with a novel SCR aftertreatment system; (4) Tier 2 Bin 5 emissions regulations were met with the advanced LDECC engine and no NOx aftertreatment, but SFTP II emissions regulations were not met for the US06 test cycle - Additional technical barriers exist for the no NOx aftertreatment engine; (5) Emissions and efficiency targets were reached with the use of biodiesel. A variety of biofuel feedstocks (soy, rapeseed, etc.) was investigated; (6) The advanced LDECC engine with low temperature combustion was compatible with commercially available biofuels as evaluated by engine performance testing and not durability testing; (7) The advanced LDECC engine equipped with a novel SCR aftertreatment system is the engine system architecture that is being further developed by the Cummins product development organization. Cost reduction and system robustness activities have been identified for future deployment; (8) The new engine and aftertreatment component technologies are being developed by the Cummins Component Business units (e.g. fuel system, turbomachinery, aftertreatment, electronics, etc.) to ensure commercial viability and deployment; (9) Cummins has demonstrated that the technologies developed for this program are scalable across the complete light duty engine product offerings (2.8L to 6.7L engines); and (10) Key subsystems developed include - sequential two stage turbo, combustions system for low temperature combustion, novel SCR aftertreatment system with feedback control, and high pressure common rail fuel system. An important element of the success of this project was leveraging Cummins engine component technologies. Innovation in component technology coupled with system integration is enabling Cummins to move forward with the development of high efficiency clean diesel products with a long term goal of reaching a 40% improvement in thermal efficiency for the engine plus aftertreatment system. The 40% improvement is in-line with the current light duty vehicle efficiency targets set by the 2010 DoE Vehicle Technologies MYPP and supported through co-operative projects such as the Cummins Advanced Technology Powertrains for Light-Duty Vehicles (ATP-LD) started in 2010.

Donald Stanton

2010-12-31T23:59:59.000Z

300

Light Duty Efficient, Clean Combustion  

DOE Green Energy (OSTI)

Cummins has successfully completed the Light Duty Efficient Clean Combustion (LDECC) cooperative program with DoE. This program was established in 2007 in support of the Department of Energy's Vehicles Technologies Advanced Combustion and Emissions Control initiative to remove critical barriers to the commercialization of advanced, high efficiency, emissions compliant internal combustion (IC) engines for light duty vehicles. Work in this area expanded the fundamental knowledge of engine combustion to new regimes and advanced the knowledge of fuel requirements for these diesel engines to realize their full potential. All of the following objectives were met with fuel efficiency improvement targets exceeded: (1) Improve light duty vehicle (5000 lb. test weight) fuel efficiency by 10.5% over today's state-of-the-art diesel engine on the FTP city drive cycle; (2) Develop and design an advanced combustion system plus aftertreatment system that synergistically meets Tier 2 Bin 5 NOx and PM emissions standards while demonstrating the efficiency improvements; (3) Maintain power density comparable to that of current conventional engines for the applicable vehicle class; and (4) Evaluate different fuel components and ensure combustion system compatibility with commercially available biofuels. Key accomplishments include: (1) A 25% improvement in fuel efficiency was achieved with the advanced LDECC engine equipped with a novel SCR aftertreatment system compared to the 10.5% target; (2) An 11% improvement in fuel efficiency was achieved with the advanced LDECC engine and no NOx aftertreamtent system; (3) Tier 2 Bin 5 and SFTP II emissions regulations were met with the advanced LDECC engine equipped with a novel SCR aftertreatment system; (4) Tier 2 Bin 5 emissions regulations were met with the advanced LDECC engine and no NOx aftertreatment, but SFTP II emissions regulations were not met for the US06 test cycle - Additional technical barriers exist for the no NOx aftertreatment engine; (5) Emissions and efficiency targets were reached with the use of biodiesel. A variety of biofuel feedstocks (soy, rapeseed, etc.) was investigated; (6) The advanced LDECC engine with low temperature combustion was compatible with commercially available biofuels as evaluated by engine performance testing and not durability testing; (7) The advanced LDECC engine equipped with a novel SCR aftertreatment system is the engine system architecture that is being further developed by the Cummins product development organization. Cost reduction and system robustness activities have been identified for future deployment; (8) The new engine and aftertreatment component technologies are being developed by the Cummins Component Business units (e.g. fuel system, turbomachinery, aftertreatment, electronics, etc.) to ensure commercial viability and deployment; (9) Cummins has demonstrated that the technologies developed for this program are scalable across the complete light duty engine product offerings (2.8L to 6.7L engines); and (10) Key subsystems developed include - sequential two stage turbo, combustions system for low temperature combustion, novel SCR aftertreatment system with feedback control, and high pressure common rail fuel system. An important element of the success of this project was leveraging Cummins engine component technologies. Innovation in component technology coupled with system integration is enabling Cummins to move forward with the development of high efficiency clean diesel products with a long term goal of reaching a 40% improvement in thermal efficiency for the engine plus aftertreatment system. The 40% improvement is in-line with the current light duty vehicle efficiency targets set by the 2010 DoE Vehicle Technologies MYPP and supported through co-operative projects such as the Cummins Advanced Technology Powertrains for Light-Duty Vehicles (ATP-LD) started in 2010.

Donald Stanton

2010-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Light Duty Efficient, Clean Combustion  

SciTech Connect

Cummins has successfully completed the Light Duty Efficient Clean Combustion (LDECC) cooperative program with DoE. This program was established in 2007 in support of the Department of Energys Vehicles Technologies Advanced Combustion and Emissions Control initiative to remove critical barriers to the commercialization of advanced, high efficiency, emissions compliant internal combustion (IC) engines for light duty vehicles. Work in this area expanded the fundamental knowledge of engine combustion to new regimes and advanced the knowledge of fuel requirements for these diesel engines to realize their full potential. All of the following objectives were met with fuel efficiency improvement targets exceeded: 1. Improve light duty vehicle (5000 lb. test weight) fuel efficiency by 10.5% over todays state-ofthe- art diesel engine on the FTP city drive cycle 2. Develop & design an advanced combustion system plus aftertreatment system that synergistically meets Tier 2 Bin 5 NOx and PM emissions standards while demonstrating the efficiency improvements. 3. Maintain power density comparable to that of current conventional engines for the applicable vehicle class. 4. Evaluate different fuel components and ensure combustion system compatibility with commercially available biofuels. Key accomplishments include: ? A 25% improvement in fuel efficiency was achieved with the advanced LDECC engine equipped with a novel SCR aftertreatment system compared to the 10.5% target ? An 11% improvement in fuel efficiency was achieved with the advanced LDECC engine and no NOx aftertreamtent system ? Tier 2 Bin 5 and SFTP II emissions regulations were met with the advanced LDECC engine equipped with a novel SCR aftertreatment system ? Tier 2 Bin 5 emissions regulations were met with the advanced LDECC engine and no NOx aftertreatment, but SFTP II emissions regulations were not met for the US06 test cycle Additional technical barriers exist for the no NOx aftertreatment engine ? Emissions and efficiency targets were reached with the use of biodiesel. A variety of biofuel feedstocks (soy, rapeseed, etc.) was investigated. ? The advanced LDECC engine with low temperature combustion was compatible with commercially available biofuels as evaluated by engine performance testing and not durability testing. ? The advanced LDECC engine equipped with a novel SCR aftertreatment system is the engine system architecture that is being further developed by the Cummins product development organization. Cost reduction and system robustness activities have been identified for future deployment. ? The new engine and aftertreatment component technologies are being developed by the Cummins Component Business units (e.g. fuel system, turbomachinery, aftertreatment, electronics, etc.) to ensure commercial viability and deployment ? Cummins has demonstrated that the technologies developed for this program are scalable across the complete light duty engine product offerings (2.8L to 6.7L engines) ? Key subsystems developed include sequential two stage turbo, combustions system for low temperature combustion, novel SCR aftertreatment system with feedback control, and high pressure common rail fuel system An important element of the success of this project was leveraging Cummins engine component technologies. Innovation in component technology coupled with system integration is enabling Cummins to move forward with the development of high efficiency clean diesel products with a long term goal of reaching a 40% improvement in thermal efficiency for the engine plus aftertreatment system. The 40% improvement is in-line with the current light duty vehicle efficiency targets set by the 2010 DoE Vehicle Technologies MYPP and supported through co-operative projects such as the Cummins Advanced Technology Powertrains for Light- Duty Vehicles (ATP-LD) started in 2010.

Stanton, Donald W

2011-06-03T23:59:59.000Z

302

Thermal Storage Materials Laboratory (Fact Sheet)  

DOE Green Energy (OSTI)

This fact sheet describes the purpose, lab specifications, applications scenarios, and information on how to partner with NREL's Thermal Storage Materials Laboratory at the Energy Systems Integration Facility. The Thermal Storage Materials Laboratory at NREL's Energy Systems Integration Facility (ESIF) investigates materials that can be used as high-temperature heat transfer fluids or thermal energy storage media in concentrating solar power (CSP) plants. Research objectives include the discovery and evaluation of candidate fluids and phase-change materials (PCM) to serve as thermal energy storage media in the temperature range of 300 C to 800 C. Knowledge of thermophysical properties such as melting point, heat of fusion, density, viscosity, thermal stability are essential for understanding how candidate materials could be deployed in CSP plants. The laboratory runs high-temperature instruments for the analysis of thermophysical properties. Small samples of candidate materials are prepared and characterized using differential scanning calorimetry, thermogravimetric analysis, and other specialized analytical methods. Instrumentation capabilities are being expanded to allow for analysis of samples up to 1,200 C. Higher temperature operation is one method to increase the efficiency and lower the cost of CSP systems.

Not Available

2011-10-01T23:59:59.000Z

303

Design Tool for Cryogenic Thermal Insulation Systems  

Science Conference Proceedings (OSTI)

Thermal isolation of low-temperature systems from ambient environments is a constant issue faced by practitioners of cryogenics. For energy-efficient systems and processes to be realized, thermal insulation must be considered as an integrated system, not merely an add-on element. A design tool to determine the performance of insulation systems for comparative trade-off studies of different available material options was developed. The approach is to apply thermal analysis to standard shapes (plane walls, cylinders, spheres) that are relatively simple to characterize with a one-dimensional analytical or numerical model. The user describes the system hot and cold boundary geometry and the operating environment. Basic outputs such as heat load and temperature profiles are determined. The user can select from a built-in insulation material database or input user defined materials. Existing information has been combined with the new experimental thermal conductivity data produced by the Cryogenics Test Laboratory for cryogenic and vacuum environments, including high vacuum, soft vacuum, and no vacuum. Materials in the design tool include multilayer insulation, aerogel blankets, aerogel bulk-fill, foams, powders, composites, and other insulation system constructions. A comparison of the design tool to a specific composite thermal insulation system is given.

Demko, Jonathan A [ORNL; Fesmire, J. E. [NASA Kennedy Space Center, Kennedy Space Center, Florida; Augustynowicz, S. D. [Sierra Lobo Inc., Kennedy Space Center, Florida

2008-01-01T23:59:59.000Z

304

EERE: Energy Efficiency  

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

increase energy efficiency nationwide. Photo of residential home with roof covered in solar panels Photo of the exterior of an energy-efficient office building Photo of a plug-in...

305

Multilayer thermal barrier coating systems  

DOE Patents (OSTI)

The present invention generally describes multilayer thermal barrier coating systems and methods of making the multilayer thermal barrier coating systems. The thermal barrier coating systems comprise a first ceramic layer, a second ceramic layer, a thermally grown oxide layer, a metallic bond coating layer and a substrate. The thermal barrier coating systems have improved high temperature thermal and chemical stability for use in gas turbine applications.

Vance, Steven J. (Orlando, FL); Goedjen, John G. (Oviedo, FL); Sabol, Stephen M. (Orlando, FL); Sloan, Kelly M. (Longwood, FL)

2000-01-01T23:59:59.000Z

306

Appliance Efficiency Standards  

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

Appliance Efficiency Standards and Price Discrimination C. Anna Spurlock Energy Analysis & Environmental Impact Department Environmental Energy Technologies Division Lawrence...

307

Solar Thermal Conversion  

DOE Green Energy (OSTI)

The thermal conversion process of solar energy is based on well-known phenomena of heat transfer (Kreith 1976). In all thermal conversion processes, solar radiation is absorbed at the surface of a receiver, which contains or is in contact with flow passages through which a working fluid passes. As the receiver heats up, heat is transferred to the working fluid which may be air, water, oil, or a molten salt. The upper temperature that can be achieved in solar thermal conversion depends on the insolation, the degree to which the sunlight is concentrated, and the measures taken to reduce heat losses from the working fluid.

Kreith, F.; Meyer, R. T.

1982-11-01T23:59:59.000Z

308

Thermal insulations using vacuum panels  

DOE Patents (OSTI)

Thermal insulation vacuum panels are formed of an inner core of compressed low thermal conductivity powders enclosed by a ceramic/glass envelope evaluated to a low pressure.

Glicksman, Leon R. (Lynnfield, MA); Burke, Melissa S. (Pittsburgh, PA)

1991-07-16T23:59:59.000Z

309

Ocean Thermal | Open Energy Information  

Open Energy Info (EERE)

Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon Ocean Thermal Jump to: navigation, search TODO: Add description List of Ocean Thermal Incentives...

310

Comparison of Thermal Insulation Materials.  

E-Print Network (OSTI)

??This thesis is about comparing of different thermal insulation materials of different manufactures. In our days there are a lot of different thermal insulation materials (more)

Chaykovskiy, German

2010-01-01T23:59:59.000Z

311

Definition of Energy Efficiency  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Users Energy Efficiency Page Energy Efficiency Definition Energy Users Energy Efficiency Page Energy Efficiency Definition Energy Efficiency: Definition Stairs) "Take the Stairs--Be More Energy Efficient" Person A interprets the sign as the "true" definition of energy efficiency. To Person A, the elevator is not being used. He is still getting to where he wants to go and using less energy in doing so. Person B considers the fact that she is not getting to where she is going with the same ease. She does not believe that she is being energy efficient, but instead she believes that she is "conserving energy" at a reduced level of service-she has to walk instead of ride. When it comes to trying to define "to be energy efficient" or "energy efficiency", there does not seem to be a single commonly-accepted definition of energy efficiency. Along the lines of Person B's thinking, it is generally thought that an increase in energy efficiency is when either energy inputs are reduced for a given level of service, or there are increased or enhanced services for a given amount of energy inputs.

312

ENTRY LOBBY ENERGY EFFICIENCY  

E-Print Network (OSTI)

ENTRY LOBBY ENERGY EFFICIENCY Clerestory windows provide natural day-lighting.· Exterior roof SUSTAINABILITY FEATURES #12;ADMINISTRATION ENERGY EFFICIENCY High performance window glazing· minimizes heat gain. Skylights provide natural day-lighting.· High-efficiency lighting reduces energy· costs and heat gain

Escher, Christine

313

Development of Non?Tracking Solar Thermal Technology  

Science Conference Proceedings (OSTI)

The aims of this research is to develop high temperature solar thermal collectors that do not require complex solar tracking devices to maintain optimal performance. The collector technology developed through these efforts uses non?imaging optics and is referred to as an external compound parabolic concentrator. It is able to operate with a solar thermal efficiency of approximately 50% at a temperature of 200??C and can be readily manufactured at a cost between $15 and $18 per square foot.

2011-01-01T23:59:59.000Z

314

Thermal Insulation Performance in the Process Industries: Facts and Fallacies  

E-Print Network (OSTI)

The efficient use of thermal insulation materials and systems for design of cryogenic and elevated temperature process applications depends upon a reliable knowledge of their properties. Properties determined under idealized laboratory conditions are inadequate based on quantified field performance results. The various general and specific materials and environment factors which influence actual thermal performance will be outlined and discussed. Examples are given to illustrate the significant effects that such factors can have on energy conservation in the industrial arena. Various solutions are suggested.

Tye, R. P.

1985-05-01T23:59:59.000Z

315

Fabrication of Pillar-Structured Thermal Neutron Detectors  

SciTech Connect

Pillar detector is an innovative solid state device structure that leverages advanced semiconductor fabrication technology to produce a device for thermal neutron detection. State-of-the-art thermal neutron detectors have shortcomings in achieving simultaneously high efficiency, low operating voltage while maintaining adequate fieldability performance. By using a 3-dimensional silicon PIN diode pillar array filled with isotopic boron 10, ({sup 10}B) a high efficiency device is theoretically possible. The fabricated pillar structures reported in this work are composed of 2 {micro}m diameter silicon pillars with a 4 {micro}m pitch and pillar heights of 6 and 12 {micro}m. The pillar detector with a 12 {micro}m height achieved a thermal neutron detection efficiency of 7.3% at 2V.

Nikolic, R J; Conway, A M; Reinhardt, C E; Graff, R T; Wang, T F; Deo, N; Cheung, C L

2007-11-19T23:59:59.000Z

316

Otter Tail Power Company - Energy Efficiency Rebate Program | Department of  

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

Energy Efficiency Rebate Program Energy Efficiency Rebate Program Otter Tail Power Company - Energy Efficiency Rebate Program < Back Eligibility Commercial Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heating Appliances & Electronics Water Heating Maximum Rebate Commercial Water Heaters: $5,000 Program Info State North Dakota Program Type Utility Rebate Program Rebate Amount Residential Demand Control: $300/unit Water Heaters: $150 - $300 Commercial Water Heaters: $20/kW RDC Thermal Storage Units: $20/kW, up to 100 kW Deferred-load Thermal Storage Units: $20/kw, up to 200 kW, plus $10/kW for up to 1,000 additional kW Fixed-time-of-delivery Thermal Storage Units: $40/kw, up to 200 kW, plus $20/kW for up to 1,000 additional kW AC Controls: $7/month seasonally

317

California Industrial Energy Efficiency Potential  

E-Print Network (OSTI)

heating (Glass) Efficient Electric Melting Intelligent Extruder (DOE) Near Net Shape Casting Efficient Curing Ovens

Coito, Fred; Worrell, Ernst; Price, Lynn; Masanet, Eric; Rafael Friedmann; Rufo, Mike

2005-01-01T23:59:59.000Z

318

Integrability vs Quantum Thermalization  

E-Print Network (OSTI)

Non-integrability is often taken as a prerequisite for quantum thermalization. Still, a generally accepted definition of quantum integrability is lacking. With the basis in the driven Rabi model we discuss this careless usage of the term "integrability" in connection to quantum thermalization. The model would be classified as non-integrable according to the most commonly used definitions, for example, the only preserved quantity is the total energy. Despite this fact, a thorough analysis conjectures that the system will not thermalize. Thus, our findings suggest first of all (i) that care should be paid when linking non-integrability with thermalization, and secondly (ii) that the standardly used definitions for quantum integrability are unsatisfactory.

Jonas Larson

2013-04-12T23:59:59.000Z

319

Contact thermal lithography  

E-Print Network (OSTI)

Contact thermal lithography is a method for fabricating microscale patterns using heat transfer. In contrast to photolithography, where the minimum achievable feature size is proportional to the wavelength of light used ...

Schmidt, Aaron Jerome, 1979-

2004-01-01T23:59:59.000Z

320

Properties of Thermal Glueballs  

E-Print Network (OSTI)

We study the properties of the 0++ glueball at finite temperature using SU(3) quenched lattice QCD. We find a significant thermal effects near T_c. We perform the \\chi^2 fit analyses adopting two Ansaetze for the spectral function, i.e., the conventional narrow-peak Ansatz and an advanced Breit-Wigner Ansatz. The latter is an extension of the former, taking account of the appearance of the thermal width at T>0. We also perform the MEM analysis. These analyses indicate that the thermal effect on the glueball is a significant thermal-width broadening \\Gamma(T_c) \\sim 300 MeV together with a modest reduction in the peak center \\Delta\\omega_0(T_c) \\sim 100 MeV.

Noriyoshi Ishii; Hideo Suganuma

2003-12-27T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Thermal springs of Wyoming  

SciTech Connect

This bulletin attempts, first, to provide a comprehensive inventory of the thermal springs of Wyoming; second, to explore the geologic and hydrologic factors producing these springs; and, third, to analyze the springs collectively as an indicator of the geothermal resources of the state. A general discussion of the state's geology and the mechanisms of thermal spring production, along with a brief comparison of Wyoming's springs with worldwide thermal features are included. A discussion of geothermal energy resources, a guide for visitors, and an analysis of the flora of Wyoming's springs follow the spring inventory. The listing and analysis of Wyoming's thermal springs are arranged alphabetically by county. Tabulated data are given on elevation, ownership, access, water temperature, and flow rate. Each spring system is described and its history, general characteristics and uses, geology, hydrology, and chemistry are discussed. (MHR)

Breckenridge, R.M.; Hinckley, B.S.

1978-01-01T23:59:59.000Z

322

Thermal springs of Wyoming  

DOE Green Energy (OSTI)

This bulletin attempts, first, to provide a comprehensive inventory of the thermal springs of Wyoming; second, to explore the geologic and hydrologic factors producing these springs; and, third, to analyze the springs collectively as an indicator of the geothermal resources of the state. A general discussion of the state's geology and the mechanisms of thermal spring production, along with a brief comparison of Wyoming's springs with worldwide thermal features are included. A discussion of geothermal energy resources, a guide for visitors, and an analysis of the flora of Wyoming's springs follow the spring inventory. The listing and analysis of Wyoming's thermal springs are arranged alphabetically by county. Tabulated data are given on elevation, ownership, access, water temperature, and flow rate. Each spring system is described and its history, general characteristics and uses, geology, hydrology, and chemistry are discussed. (MHR)

Breckenridge, R.M.; Hinckley, B.S.

1978-01-01T23:59:59.000Z

323

Solar Thermal Manufacturing Activities  

Reports and Publications (EIA)

This report, Solar Thermal Collector Manufacturing Activities, providesan overview and tables with historical data spanning 2000-2009. These tables willcorrespond to similar tables to be presented in the Renewable Energy Annual 2009 andare numbered accordingly.

Michele Simmons

2010-12-01T23:59:59.000Z

324

Collector efficiency of the double-pass solar air collectors with fins  

Science Conference Proceedings (OSTI)

The experimental study on a forced-convective double-pass solar air collector with fins in the second channel has been conducted. The experiments were conducted by changing the parameters that influence the thermal efficiency of the collector. The efficiency ... Keywords: collector efficiency, double-pass solar air collector, fins absorbers

A. Fudholi; M. H. Ruslan; M. Y. Othman; M. Yahya; Supranto Supranto; A. Zaharim; K. Sopian

2010-10-01T23:59:59.000Z

325

Texas Thermal Comfort Report  

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

thermal comfort thermal comfort Too often, the systems in our houses are both physically and intellectually inaccessible. In the SNAP House, HVAC components are integrated into the overall structure, and act as an experiential threshold between public and private spaces. They are located in a central, structural chase that supports the clerestory and gives the systems a functional presence within the interior. Each individual component is contained within a single chase

326

Photovoltaic-thermal collectors  

DOE Patents (OSTI)

A photovoltaic-thermal solar cell including a semiconductor body having antireflective top and bottom surfaces and coated on each said surface with a patterned electrode covering less than 10% of the surface area. A thermal-absorbing surface is spaced apart from the bottom surface of the semiconductor and a heat-exchange fluid is passed between the bottom surface and the heat-absorbing surface.

Cox, III, Charles H. (Carlisle, MA)

1984-04-24T23:59:59.000Z

327

Thermal Energy Storage  

Science Conference Proceedings (OSTI)

This Technology Brief provides an update on the current state of cool thermal energy storage systems (TES) for end-use applications. Because of its ability to shape energy use, TES is strategic technology that allows end-users to reduce their energy costs while simultaneously providing benefits for electric utilities through persistent peak demand reduction and peak shifting. In addition to discussing the concepts of thermal energy storage, the Brief discusses the current state of TES technologies and dr...

2008-12-16T23:59:59.000Z

328

Gulf Power - Solar Thermal Water Heating Program | Department of Energy  

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

Gulf Power - Solar Thermal Water Heating Program Gulf Power - Solar Thermal Water Heating Program Gulf Power - Solar Thermal Water Heating Program < Back Eligibility Low-Income Residential Multi-Family Residential Residential Savings Category Heating & Cooling Solar Water Heating Maximum Rebate $1,000 Program Info State Florida Program Type Utility Rebate Program Provider Energy Efficiency '''''This program reopened on October 3, 2011 for 2012 applications. Funding is limited and must be reserved through online application before the installation of qualifying solar water heating systems. See Gulf Power's [http://www.gulfpower.com/renewable/solarThermal.asp Solar Water Heating] web site for more information.''''' Gulf Power offers a Solar Thermal Water Heating rebate to customers who install water heaters. This program started after the original pilot

329

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

330

Energy Efficiency in Log Homes | Department of Energy  

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

Energy Efficiency in Log Homes Energy Efficiency in Log Homes Energy Efficiency in Log Homes April 13, 2012 - 11:29am Addthis Consider energy efficiency when designing or purchasing a log home. | Photo courtesy of ©iStockphoto.com/tinabelle Consider energy efficiency when designing or purchasing a log home. | Photo courtesy of ©iStockphoto.com/tinabelle What does this mean for me? Before designing or purchasing a log home, you should consider several factors related to energy efficiency. Log homes may be site-built or pre-cut in a factory for delivery to the site. Some log home manufacturers can also customize their designs. Before designing or purchasing a manufactured log home, you should consider several factors related to energy efficiency. The R-Value of Wood A material's thermal resistance or resistance to heat flow is measured by

331

Energy Efficiency in Log Homes | Department of Energy  

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

Energy Efficiency in Log Homes Energy Efficiency in Log Homes Energy Efficiency in Log Homes April 13, 2012 - 11:29am Addthis Consider energy efficiency when designing or purchasing a log home. | Photo courtesy of ©iStockphoto.com/tinabelle Consider energy efficiency when designing or purchasing a log home. | Photo courtesy of ©iStockphoto.com/tinabelle What does this mean for me? Before designing or purchasing a log home, you should consider several factors related to energy efficiency. Log homes may be site-built or pre-cut in a factory for delivery to the site. Some log home manufacturers can also customize their designs. Before designing or purchasing a manufactured log home, you should consider several factors related to energy efficiency. The R-Value of Wood A material's thermal resistance or resistance to heat flow is measured by

332

Center-to-Limb Variation of Radio Emissions from Thermal-Rich and Thermal-Poor Solar Flares  

E-Print Network (OSTI)

A statistical analysis of radio flare events was performed by using the event list of Nobeyama Radioheliograph in 1996-2009. We examined center-to-limb variations of 17GHz and 34GHz flux by dividing the flare events into different groups with respect to the 'thermal plasma richness' (ratio of the peak flux of soft X-ray to non-thermal radio emissions) and the duration of radio bursts. It is found that peak flux of 17 and 34GHz tend to be higher toward the limb for thermal-rich flares with short durations. We propose that the thermal-rich flares, which are supposed to be associated with an efficient precipitation of high energy particles into the chromosphere, have a pitch angle distribution of non-thermal electrons with a higher population along the flare loop.

Kawate, Tomoko; Kiyoshi, Ichimoto

2011-01-01T23:59:59.000Z

333

Thermal Performance Engineer's Handbook: Introduction to Thermal Performance  

Science Conference Proceedings (OSTI)

The two-volume Thermal Performance Engineer Handbook will assist thermal performance engineers in identifying and investigating the cause of megawatt (MWe) losses as well as in proposing new ways to increase MWe output. Volume 1 contains a thermal performance primer to provide a brief review of thermodynamic principles involved in the stream power plant thermal cycle. The primer also contains brief descriptions of the equipment and systems in the cycle that can be sources of thermal losses. Also in Volum...

1998-04-01T23:59:59.000Z

334

Thermal Management of Solar Cells  

E-Print Network (OSTI)

UNIVERSITY OF CALIFORNIA RIVERSIDE Thermal Management ofUniversity of California, Riverside Acknowledgments First, I

Saadah, Mohammed Ahmed

2013-01-01T23:59:59.000Z

335

What's Energy Efficiency?  

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

What is energy efficiency? What is energy efficiency? Energy efficiency is "using less energy to provide the same service". There are other definitions, but this is a good operational one. The best way to understand this idea is through examples: When you replace a single pane window in your house with an energy-efficient one, the new window prevents heat from escaping in the winter, so you save energy by using your furnace or electric heater less while still staying comfortable. In the summer, efficient windows keep the heat out, so the air conditioner does not run as often and you save electricity. When you replace an appliance, such as a refrigerator or clothes washer, or office equipment, such as a computer or printer, with a more energy-efficient model, the new equipment provides the same service, but

336

Morgan County REA - Efficiency Credit/Rebate Programs | Department of  

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

Morgan County REA - Efficiency Credit/Rebate Programs Morgan County REA - Efficiency Credit/Rebate Programs Morgan County REA - Efficiency Credit/Rebate Programs < Back Eligibility Commercial General Public/Consumer Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Appliances & Electronics Home Weatherization Construction Commercial Weatherization Design & Remodeling Heat Pumps Commercial Lighting Lighting Manufacturing Water Heating Program Info State Colorado Program Type Utility Rebate Program Rebate Amount Heat Pumps: $85 - $300/unit, varies by efficiency and configuration Geothermal Heat Pumps: $100 - $150 Room AC (Split Systems): $100 - $150 (Tri-State) Electric Thermal Storage: $24/kW Thermal Slab Units: $18/kW Electric Motors: $16/HP Wiring Assistance: $3/HP LEDs: $10 (Tri-State)

337

Transmission Efficiency Technology Assessment  

Science Conference Proceedings (OSTI)

Reducing our carbon footprint and increasing the role of renewable energy are important parts of the strategy for the greening of electric energy supply. Energy efficiency will be a major contributing factor to achieving a low-carbon future. Traditionally, energy-efficiency measures have focused on end-use efficiency. But if one considers the electricity consumed by auxiliary loads at power plants and lost in power delivery, the single largest industrial consumer of electricity is the electric power indu...

2009-12-23T23:59:59.000Z

338

Transmission Efficiency Technology Assessment  

Science Conference Proceedings (OSTI)

The reduction of our carbon footprint and increasing the role of renewable energy are important parts of the strategy for the greening of electric energy supply. As a result, efficient power delivery is also becoming a priority of our national and international energy strategies. Energy efficiency is usually associated with the customers compact florescent light bulbs and other energy saving appliances. Efficiency, however, is also applied to utilities and their distribution of power to their customers....

2008-12-22T23:59:59.000Z

339

Green Transmission Efficiency Initiative  

Science Conference Proceedings (OSTI)

As a consequence of escalating interest in the environment and climate changea national focus on energy efficiency, and growing electricity demandthe time is right to assess energy efficiency from both an end-use perspective as well as across the utility value chain, from generation, to transmission, to distribution. The reduction of our carbon footprint and increasing the role of renewable energy are an important part of the strategy for the greening for electric energy supply. As a result, efficient po...

2009-07-31T23:59:59.000Z

340

Article for thermal energy storage  

DOE Patents (OSTI)

A thermal energy storage composition is provided which is in the form of a gel. The composition includes a phase change material and silica particles, where the phase change material may comprise a linear alkyl hydrocarbon, water/urea, or water. The thermal energy storage composition has a high thermal conductivity, high thermal energy storage, and may be used in a variety of applications such as in thermal shipping containers and gel packs.

Salyer, Ival O. (Dayton, OH)

2000-06-27T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Solar-thermal technology  

DOE Green Energy (OSTI)

Solar-thermal technology converts sunlight into thermal energy. It stands alongside other solar technologies including solar-electric and photovoltaic technologies, both of which convert sunlight into electricity. Photovoltaic technology converts by direct conversion, and solar-electric converts by using sunlight`s thermal energy in thermodynamic power cycles. The numerous up-and-running solar energy systems prove solar-thermal technology works. But when is it cost-effective, and how can HVAC engineers and facility owners quickly identify cost-effective applications? This article addresses these questions by guiding the reader through the basics of solar-thermal technology. The first section provides an overview of today`s technology including discussions of collectors and typical systems. The next section presents an easy method for identifying potentially cost-effective applications. This section also identifies sources for obtaining more information on the technology--collector ratings and performance, solar manufacturers, and solar design and analysis tools. The article discusses only those collectors and systems that are most often used. Many others are on the market--the article does not, by omission, mean to infer that one is better than the other.

Bennett, C. [Sandia National Labs., Albuquerque, NM (United States)

1995-09-01T23:59:59.000Z

342

Efficiency | Open Energy Information  

Open Energy Info (EERE)

Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon Efficiency Jump to: navigation, search TODO: Add description Related Links List of Companies in...

343

Buildings Energy Efficiency  

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

Office building windows, clean room, infrared thermograph, data graphic Buildings Energy Efficiency Researchers, in close cooperation with industry, develop technologies for...

344

Alunorte Global Energy Efficiency  

Science Conference Proceedings (OSTI)

The plant has a specific energy consumption of less than 8 GJ per ton of alumina which defines the world-wide benchmark for energy efficiency in alumina...

345

Window Energy Efficiency Checklist  

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

Window Energy Efficiency Checklist While most new windows have labels indicating their energy properties, such information is not often available for existing windows. Here is a...

346

Energy Efficient Buildings Hub  

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

Office Peer Review Meeting Purpose and Objectives * Problem Statement - Building energy efficiency has not increased in recent decades compared to other sectors especially...

347

Maximizing Drilling Efficiency Opportunity  

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

of the United States by increasing supply, reducing cost, and increasing efficiency of exploration and production while minimizing environmental impacts. Growth in supply of...

348

Energy Efficiency Events  

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

Energy Efficiency Events at SC11 News & Publications ESnet in the News ESnet News Media & Press Publications and Presentations Galleries ESnet Awards and Honors Contact Us...

349

Efficient Water Use & Management  

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

Sustainability Goals Water Use Goal 4: Efficient Water Use & Management Aware of the arid climate of northern New Mexico, water reduction and conservation remains a primary...

350

Bayer Process Efficiency Improvement  

Science Conference Proceedings (OSTI)

Abstract Scope, The process efficiency has a great influence on the production yield, energy consumption, investment and operation cost in Bayer process.

351

Stirling Engine Cycle Efficiency.  

E-Print Network (OSTI)

??ABSTRACT This study strives to provide a clear explanation of the Stirling engine and its efficiency using new automation technology and the Lab View software. (more)

Naddaf, Nasrollah

2012-01-01T23:59:59.000Z

352

From energy efficiency  

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

energy efficiency upgrades to light-rail projects, clean energy and clean transportation continue to create jobs and drive economic growth. By tracking job announcements from...

353

Energy efficient data centers  

E-Print Network (OSTI)

efficient operation of cooling towers. Various resources arereset control schedule. Cooling tower sequence (i.e. , oneton, closed circuit water-cooling towers and condenser water

Tschudi, William; Xu, Tengfang; Sartor, Dale; Koomey, Jon; Nordman, Bruce; Sezgen, Osman

2004-01-01T23:59:59.000Z

354

California Industrial Energy Efficiency Potential  

E-Print Network (OSTI)

The Potential for Energy Efficiency. Prepared for The EnergyIndustrial Sector Energy Efficiency Potential Study - DraftIndustrial Energy Efficiency Market Characterization Study.

Coito, Fred; Worrell, Ernst; Price, Lynn; Masanet, Eric; Rafael Friedmann; Rufo, Mike

2005-01-01T23:59:59.000Z

355

California Industrial Energy Efficiency Potential  

E-Print Network (OSTI)

sponsored avoided cost studies, energy efficiency programat various costs is with energy efficiency supply curves.Energy Efficiency in Industry Table 4 summarizes the benefit-cost

Coito, Fred; Worrell, Ernst; Price, Lynn; Masanet, Eric; Rafael Friedmann; Rufo, Mike

2005-01-01T23:59:59.000Z

356

Renewable Energy Across the 50 United States and Related Factors.  

E-Print Network (OSTI)

??Renewable energy production replaces diminishing non-renewable energy sources including fossil fuels. Major sources of renewable energy include biofuels, geothermal, hydroelectric, solar thermal and photovoltaic, wind, (more)

Christenson, Cynthia Brit

2013-01-01T23:59:59.000Z

357

Thermal insulated glazing unit  

SciTech Connect

An improved insulated glazing unit is provided which can attain about R5 to about R10 thermal performance at the center of the glass while having dimensions about the same as those of a conventional double glazed insulated glazing unit. An outer glazing and inner glazing are sealed to a spacer to form a gas impermeable space. One or more rigid, non-structural glazings are attached to the inside of the spacer to divide the space between the inner and outer glazings to provide insulating gaps between glazings of from about 0.20 inches to about 0.40 inches. One or more glazing surfaces facing each thermal gap are coated with a low emissivity coating. Finally, the thermal gaps are filled with a low conductance gas such as krypton gas.

Selkowitz, Stephen E. (Piedmont, CA); Arasteh, Dariush K. (Oakland, CA); Hartmann, John L. (Seattle, WA)

1991-01-01T23:59:59.000Z

358

THERMAL NEUTRON BACKSCATTER IMAGING.  

DOE Green Energy (OSTI)

Objects of various shapes, with some appreciable hydrogen content, were exposed to fast neutrons from a pulsed D-T generator, resulting in a partially-moderated spectrum of backscattered neutrons. The thermal component of the backscatter was used to form images of the objects by means of a coded aperture thermal neutron imaging system. Timing signals from the neutron generator were used to gate the detection system so as to record only events consistent with thermal neutrons traveling the distance between the target and the detector. It was shown that this time-of-flight method provided a significant improvement in image contrast compared to counting all events detected by the position-sensitive {sup 3}He proportional chamber used in the imager. The technique may have application in the detection and shape-determination of land mines, particularly non-metallic types.

VANIER,P.; FORMAN,L.; HUNTER,S.; HARRIS,E.; SMITH,G.

2004-10-16T23:59:59.000Z

359

Thermal insulated glazing unit  

DOE Patents (OSTI)

An improved insulated glazing unit is provided which can attain about R5 to about R10 thermal performance at the center of the glass while having dimensions about the same as those of a conventional double glazed insulated glazing unit. An outer glazing and inner glazing are sealed to a spacer to form a gas impermeable space. One or more rigid, non-structural glazings are attached to the inside of the spacer to divide the space between the inner and outer glazings to provide insulating gaps between glazings of from about 0.20 inches to about 0.40 inches. One or more glazing surfaces facing each thermal gap are coated with a low emissivity coating. Finally, the thermal gaps are filled with a low conductance gas such as krypton gas. 2 figs.

Selkowitz, S.E.; Arasteh, D.K.; Hartmann, J.L.

1988-04-05T23:59:59.000Z

360

Thermal energy storage material  

DOE Patents (OSTI)

A thermal energy storage material which is stable at atmospheric temperature and pressure and has a melting point higher than 32.degree.F. is prepared by dissolving a specific class of clathrate forming compounds, such as tetra n-propyl or tetra n-butyl ammonium fluoride, in water to form a substantially solid clathrate. The resultant thermal energy storage material is capable of absorbing heat from or releasing heat to a given region as it transforms between solid and liquid states in response to temperature changes in the region above and below its melting point.

Leifer, Leslie (Hancock, MI)

1976-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Thermal test options  

SciTech Connect

Shipping containers for radioactive materials must be qualified to meet a thermal accident environment specified in regulations, such at Title 10, Code of Federal Regulations, Part 71. Aimed primarily at the shipping container design, this report discusses the thermal testing options available for meeting the regulatory requirements, and states the advantages and disadvantages of each approach. The principal options considered are testing with radiant heat, furnaces, and open pool fires. The report also identifies some of the facilities available and current contacts. Finally, the report makes some recommendations on the appropriate use of these different testing methods.

Koski, J.A.; Keltner, N.R.; Sobolik, K.B.

1993-02-01T23:59:59.000Z

362

Thermal ignition combustion system  

DOE Patents (OSTI)

The thermal ignition combustion system comprises means for providing walls defining an ignition chamber, the walls being made of a material having a thermal conductivity greater than 20 W/m C and a specific heat greater than 480 J/kg C with the ignition chamber being in constant communication with the main combustion chamber, means for maintaining the temperature of the walls above a threshold temperature capable of causing ignition of a fuel, and means for conducting fuel to the ignition chamber. 8 figs.

Kamo, R.; Kakwani, R.M.; Valdmanis, E.; Woods, M.E.

1988-04-19T23:59:59.000Z

363

Thermal Insulation Systems  

E-Print Network (OSTI)

Thermal insulation systems are receiving a high degree of attention in view of increasing energy cost. Industrial, commercial and residential energy users are all well aware of energy cost increases and great emphasis is being directed to energy cost reduction programs. One of the best places to start with energy conservation is to employ proper insulation systems. This article discusses the significant properties of thermal insulation materials primarily for industrial application. Some of the information is applicable to commercial and residential insulation. Only hot service conditions will be covered.

Stanley, T. F.

1982-01-01T23:59:59.000Z

364

Landscaping for energy efficiency  

SciTech Connect

This publication by the National Renewable Energy Laboratory addresses the use of landscaping for energy efficiency. The topics of the publication include minimizing energy expenses; landscaping for a cleaner environment; climate, site, and design considerations; planning landscape; and selecting and planting trees and shrubs. A source list for more information on landscaping for energy efficiency and a reading list are included.

NONE

1995-04-01T23:59:59.000Z

365

Energy Efficiency & Renewable Energy  

E-Print Network (OSTI)

of energy; · increase efficiency and productivity of the existing energy infrastructure; · bring clean lives of Americans by productively enhancing their energy choices and quality of life. Energy Efficiency Performance and Sustainable Buildings by 2015 Design all new Federal buildings which begin the planning

366

The Efficient Window Collaborative  

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

5 5 The Efficient Window Collaborative http://www.efficientwindows.org Energy-efficient windows make up only about 35% of the U.S. residential window market, even though they are cost-effective in approximately 80% or more of all applications. To ensure that efficient windows reach their optimum potential in homes throughout the U.S., the Department of Energy and key players in the U.S. window industry have formed the Efficient Window Collaborative (EWC). The EWC's goal is doubling the market share of efficient windows by 2005. With 31 charter members from the window and glass industries, the EWC is managed jointly by the Washington, D.C.-based Alliance to Save Energy and the Center for Building Science's Windows and Daylighting Group. The EWC serves as a focal point for voluntary

367

Energy Efficient Technologies  

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

Energy Efficient Technologies Energy Efficient Technologies Energy efficient technologies are available now! Many of the vehicles currently on display in dealer showrooms boast new performance-enhancing, fuel-saving technologies that can save you money. Engine Technologies Transmission Technologies All Engine Technology Average Efficiency Increase Variable Valve Timing & Lift improve engine efficiency by optimizing the flow of fuel & air into the engine for various engine speeds. 5% Cylinder Deactivation saves fuel by deactivating cylinders when they are not needed. 7.5% Turbochargers & Superchargers increase engine power, allowing manufacturers to downsize engines without sacrificing performance or to increase performance without lowering fuel economy. 7.5% Integrated Starter/Generator (ISG) Systems automatically turn the engine on/off when the vehicle is stopped to reduce fuel consumed during idling. 8%

368

efficiency | OpenEI  

Open Energy Info (EERE)

efficiency efficiency Dataset Summary Description View 2010 energy efficiency data from AeroSys Inc, Coaire, Cold Point, First Operations, LG Electronics, Nordyne, and Quietside manufacturers. Data includes cooling capacity, cooling performance, heating capacity, and heating performance. Spreadsheet was created by combining the tables in pdf files that are included in the zip file. Source Energy Applicance Data - United States Federal Trade Commission, www.ftc.gov Date Released Unknown Date Updated Unknown Keywords air conditioner central air conditioner efficiency efficient energy heat pump Data application/vnd.ms-excel icon 2010_CentralAC_All.xls (xls, 82.4 KiB) application/zip icon 2010CentralAirConditioner.zip (zip, 398.2 KiB) Quality Metrics Level of Review Some Review

369

efficient | OpenEI  

Open Energy Info (EERE)

efficient efficient Dataset Summary Description View 2010 energy efficiency data from AeroSys Inc, Coaire, Cold Point, First Operations, LG Electronics, Nordyne, and Quietside manufacturers. Data includes cooling capacity, cooling performance, heating capacity, and heating performance. Spreadsheet was created by combining the tables in pdf files that are included in the zip file. Source Energy Applicance Data - United States Federal Trade Commission, www.ftc.gov Date Released Unknown Date Updated Unknown Keywords air conditioner central air conditioner efficiency efficient energy heat pump Data application/vnd.ms-excel icon 2010_CentralAC_All.xls (xls, 82.4 KiB) application/zip icon 2010CentralAirConditioner.zip (zip, 398.2 KiB) Quality Metrics Level of Review Some Review

370

Energy Efficient Data Centers  

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

Energy Efficient Data Centers Energy Efficient Data Centers Title Energy Efficient Data Centers Publication Type Report LBNL Report Number LBNL-54163 Year of Publication 2004 Authors Tschudi, William F., Tengfang T. Xu, Dale A. Sartor, Jonathan G. Koomey, Bruce Nordman, and Osman Sezgen Call Number LBNL-54163 Abstract Data Center facilities, prevalent in many industries and institutions are essential to Californias economy. Energy intensive data centers are crucial to Californias industries, and many other institutions (such as universities) in the state, and they play an important role in the constantly evolving communications industry. To better understand the impact of the energy requirements and energy efficiency improvement potential in these facilities, the California Energy Commissions PIER Industrial Program initiated this project with two primary focus areas: First, to characterize current data center electricity use; and secondly, to develop a research roadmap defining and prioritizing possible future public interest research and deployment efforts that would improve energy efficiency.

371

Appliance Efficiency Standards  

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

6 6 Appliance Efficiency Standards Part 2 of 2: Policy process and consumer gains Part 1 of this article (CBS News, Spring 1995) discussed LBNL's role in setting federal appliance efficiency standards and presented an overview of the net national benefits of standards. Here, we examine the broader policy context for appliance standards and consumer benefits. Policy Context Appliance efficiency standards provide a minimum requirement for energy efficiency at the point of manufacture (or import). These standards seek to overcome market failures-including price distortions and transaction costs-that have historically given rise to a gap between observed and attainable product efficiencies. In this way, appliance standards complement information programs, utility DSM and other incentive programs,

372

How Far Energy Efficiency?  

E-Print Network (OSTI)

Analysts agree about the need for developing both new and cleaner energy resources. At the same time, some argue that energy efficiency can provide only a minimal role in meeting future energy needs. Hence, energy supply is encouraged while energy efficiency is supported only minimally. Analysts Douglas Lightfoot and Christopher Green suggest in a series of papers, for example, that there are practical limits that will constrain the rate of efficiency improvement to no more than about one percent per annum over the next 100 years. This paper explores the assumptions that underpin such practical limits and concludes that efficiency gains perhaps could more than double the rate suggested by Lightfoot and Green. The question is not one of practical limits; rather, the issue is one of choosing to develop energy paths that allow greater system efficiencies to emerge.

John A. skip Laitner

2004-01-01T23:59:59.000Z

373

Low thermal expansion seal ring support  

DOE Patents (OSTI)

Today, the trend is to increase the temperature of operation of gas turbine engines. To cool the components with compressor discharge air, robs air which could otherwise be used for combustion and creates a less efficient gas turbine engine. The present low thermal expansion sealing ring support system reduces the quantity of cooling air required while maintaining life and longevity of the components. Additionally, the low thermal expansion sealing ring reduces the clearance "C","C'" demanded between the interface between the sealing surface and the tip of the plurality of turbine blades. The sealing ring is supported by a plurality of support members in a manner in which the sealing ring and the plurality of support members independently expand and contract relative to each other and to other gas turbine engine components.

Dewis, David W. (San Diego, CA); Glezer, Boris (Del Mar, CA)

2000-01-01T23:59:59.000Z

374

Value of solar thermal industrial process heat  

DOE Green Energy (OSTI)

This study estimated the value of solar thermal-generated industrial process heat (IPH) as a function of process heat temperature. The value of solar thermal energy is equal to the cost of producing energy from conventional fuels and equipment if the energy produced from either source provides an equal level of service. This requirement put the focus of this study on defining and characterizing conventional process heat equipment and fuels. Costs (values) were estimated for 17 different design points representing different combinations of conventional technologies, temperatures, and fuels. Costs were first estimated for median or representative conditions at each design point. The cost impact of capacity factor, efficiency, fuel escalation rate, and regional fuel price differences were then evaluated by varying each of these factors within credible ranges.

Brown, D.R.; Fassbender, L.L.; Chockie, A.D.

1986-03-01T23:59:59.000Z

375

Agent-Oriented Intelligent Control Strategies for the Nano-satellite Autonomous Thermal System  

Science Conference Proceedings (OSTI)

The paper concerns the autonomous thermal control system of Nano-satellite with a study of the combination of MEMS (Micro Electro Mechanical Systems)-based efficient cooling technique and the agent-oriented intelligent control strategies issue, especially ...

Liu Jia; Li Yunze; Wang Yuying; Wang Jun

2009-11-01T23:59:59.000Z

376

Glass-like thermal transport in AgSbTe2 | ORNL  

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

Glass-like thermal transport in AgSbTe2: nano-scale insights to improve thermoelectric efficiency May 16, 2013 Inelastic neutron scattering data showing the phonon dispersions...

377

Thermal mass performance in residential construction : an energy analysis using a cube model  

E-Print Network (OSTI)

Given the pervasiveness of energy efficiency concerns in the built environment, this research aims to answer key questions regarding the performance of thermal mass construction. The work presents the Cube Model, a simplified ...

Ledwith, Alison C. (Alison Catherine)

2012-01-01T23:59:59.000Z

378

A soft computing method for detecting lifetime building thermal insulation failures  

Science Conference Proceedings (OSTI)

The detection of thermal insulation failures in buildings in operation responds to the challenge of improving building energy efficiency. This multidisciplinary study presents a novel four-step soft computing knowledge identification model called IKBIS ...

Javier Sedano; Leticia Curiel; Emilio Corchado; Enrique de la Cal; Jos R. Villar

2010-04-01T23:59:59.000Z

379

Highly Efficient Modeling of Dynamic Coronal Loops  

E-Print Network (OSTI)

Observational and theoretical evidence suggests that coronal heating is impulsive and occurs on very small cross-field spatial scales. A single coronal loop could contain a hundred or more individual strands that are heated quasi-independently by nanoflares. It is therefore an enormous undertaking to model an entire active region or the global corona. Three-dimensional MHD codes have inadequate spatial resolution, and 1D hydro codes are too slow to simulate the many thousands of elemental strands that must be treated in a reasonable representation. Fortunately, thermal conduction and flows tend to smooth out plasma gradients along the magnetic field, so "0D models" are an acceptable alternative. We have developed a highly efficient model called Enthalpy-Based Thermal Evolution of Loops (EBTEL) that accurately describes the evolution of the average temperature, pressure, and density along a coronal strand. It improves significantly upon earlier models of this type--in accuracy, flexibility, and capability. It ...

Klimchuk, J A; Cargill, P J

2007-01-01T23:59:59.000Z

380

Molten Glass for Thermal Storage: Advanced Molten Glass for Heat Transfer and Thermal Energy Storage  

Science Conference Proceedings (OSTI)

HEATS Project: Halotechnics is developing a high-temperature thermal energy storage system using a new thermal-storage and heat-transfer material: earth-abundant and low-melting-point molten glass. Heat storage materials are critical to the energy storage process. In solar thermal storage systems, heat can be stored in these materials during the day and released at nightwhen the sun is not outto drive a turbine and produce electricity. In nuclear storage systems, heat can be stored in these materials at night and released to produce electricity during daytime peak-demand hours. Halotechnics new thermal storage material targets a price that is potentially cheaper than the molten salt used in most commercial solar thermal storage systems today. It is also extremely stable at temperatures up to 1200Chundreds of degrees hotter than the highest temperature molten salt can handle. Being able to function at high temperatures will significantly increase the efficiency of turning heat into electricity. Halotechnics is developing a scalable system to pump, heat, store, and discharge the molten glass. The company is leveraging technology used in the modern glass industry, which has decades of experience handling molten glass.

None

2012-01-01T23:59:59.000Z

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


381

Buildings Energy Data Book: 7.4 Efficiency Standards for Commercial...  

Buildings Energy Data Book (EERE)

Warm Air Furnaces Effective for products manufactured on or after January 1, 1994 Thermal Efficiency (1) Gas-fired, with capacity 225,000 Btuhr Not less than 80%...

382

Generation of a Parabolic Trough Collector Efficiency Curve from Separate Measurements of Outdoor Optical Efficiency and Indoor Receiver Heat Loss  

SciTech Connect

The thermal efficiency of a parabolic trough collector is a function of both the fraction of direct normal radiation absorbed by the receiver (the optical efficiency) and the heat lost to the environment when the receiver is at operating temperature. The thermal efficiency can be determined by testing the collector under actual operating conditions or by separately measuring these two components. This paper describes how outdoor measurement of the optical efficiency is combined with laboratory measurements of receiver heat loss to obtain the thermal efficiency curve. This paper describes this approach and also makes the case that there are advantages to plotting collector efficiency versus the difference between the operating temperature and the ambient temperature at which the receiver heat loss was measured divided by radiation to a fractional power (on the order of 1/3 but obtained via data regression) - as opposed to the difference between operating and ambient temperatures divided by the radiation. The results are shown to be robust over wide ranges of ambient temperature, sky temperature, and wind speed.

Kutscher, C.; Burkholder, F.; Stynes, J. K.

2012-02-01T23:59:59.000Z

383

Thermal conduction and particle transport in strong MHD turbulence, with application to galaxy-cluster plasmas  

E-Print Network (OSTI)

We investigate field-line separation in strong MHD turbulence analytically and with direct numerical simulations. We find that in the static-magnetic-field approximation the thermal conductivity in galaxy clusters is reduced by a factor of about 5-10 relative to the Spitzer thermal conductivity of a non-magnetized plasma. We also estimate how the thermal conductivity would be affected by efficient turbulent resistivity.

Benjamin D. G. Chandran; Jason L. Maron

2003-03-11T23:59:59.000Z

384

Estimating uncertainty in thermal-hydraulic codes using the linear variate method  

Science Conference Proceedings (OSTI)

Thermal-hydraulic codes are subject o uncertainties that must be considered in determining whether safety criteria are satisfied in nuclear reactors. Uncertainties correspond to parameters in a thermal-hydraulic model. A thermal-hydraulic model is typically a nonlinear, discontinuous function of the uncertainties. Evaluating the effect of the uncertainties is difficult. This paper describes an efficient Monte Carlo method for determining the effect of the uncertainties.

Kubic, W.L. Jr. (Los Alamos National Laboratory, NM (USA)); White, A.M. (Westinghouse Savannah River Company, Aiken, SC (USA))

1989-11-01T23:59:59.000Z

385

Thermal Reactor Safety  

Science Conference Proceedings (OSTI)

Information is presented concerning fire risk and protection; transient thermal-hydraulic analysis and experiments; class 9 accidents and containment; diagnostics and in-service inspection; risk and cost comparison of alternative electric energy sources; fuel behavior and experiments on core cooling in LOCAs; reactor event reporting analysis; equipment qualification; post facts analysis of the TMI-2 accident; and computational methods.

Not Available

1980-06-01T23:59:59.000Z

386

Thermal barrier coating  

SciTech Connect

A thermal barrier coating for hot gas path components of a combustion turbine based on a zirconia-scandia system. A layer of zirconium scandate having the hexagonal Zr.sub.3 Sc.sub.4 O.sub.12 structure is formed directly on a superalloy substrate or on a bond coat formed on the substrate.

Bowker, Jeffrey Charles (Gibsonia, PA); Sabol, Stephen M. (Orlando, FL); Goedjen, John G. (Oviedo, FL)

2001-01-01T23:59:59.000Z

387

High-Performance Home Technologies: Solar Thermal & Photovoltaic Systems  

DOE Green Energy (OSTI)

This document is the sixth volume of the Building America Best Practices Series. It presents information that is useful throughout the United States for enhancing the energy efficiency practices in the specific climate zones that are presented in the first five Best Practices volumes. It provides an introduction to current photovoltaic and solar thermal building practices. Information about window selection and shading is included.

Baechler, M.; Gilbride, T.; Ruiz, K.; Steward, H.; Love, P.

2007-06-01T23:59:59.000Z

388

Duct thermal performance models for large commercial buildings  

SciTech Connect

Despite the potential for significant energy savings by reducing duct leakage or other thermal losses from duct systems in large commercial buildings, California Title 24 has no provisions to credit energy-efficient duct systems in these buildings. A substantial reason is the lack of readily available simulation tools to demonstrate the energy-saving benefits associated with efficient duct systems in large commercial buildings. The overall goal of the Efficient Distribution Systems (EDS) project within the PIER High Performance Commercial Building Systems Program is to bridge the gaps in current duct thermal performance modeling capabilities, and to expand our understanding of duct thermal performance in California large commercial buildings. As steps toward this goal, our strategy in the EDS project involves two parts: (1) developing a whole-building energy simulation approach for analyzing duct thermal performance in large commercial buildings, and (2) using the tool to identify the energy impacts of duct leakage in California large commercial buildings, in support of future recommendations to address duct performance in the Title 24 Energy Efficiency Standards for Nonresidential Buildings. The specific technical objectives for the EDS project were to: (1) Identify a near-term whole-building energy simulation approach that can be used in the impacts analysis task of this project (see Objective 3), with little or no modification. A secondary objective is to recommend how to proceed with long-term development of an improved compliance tool for Title 24 that addresses duct thermal performance. (2) Develop an Alternative Calculation Method (ACM) change proposal to include a new metric for thermal distribution system efficiency in the reporting requirements for the 2005 Title 24 Standards. The metric will facilitate future comparisons of different system types using a common ''yardstick''. (3) Using the selected near-term simulation approach, assess the impacts of duct system improvements in California large commercial buildings, over a range of building vintages and climates. This assessment will provide a solid foundation for future efforts that address the energy efficiency of large commercial duct systems in Title 24. This report describes our work to address Objective 1, which includes a review of past modeling efforts related to duct thermal performance, and recommends near- and long-term modeling approaches for analyzing duct thermal performance in large commercial buildings.

Wray, Craig P.

2003-10-01T23:59:59.000Z

389

Software optimization for performance, energy, and thermal distribution: Initial case studies  

Science Conference Proceedings (OSTI)

As an initial step in our Green Software research, this paper investigates whether software optimization at the application level can help achieve higher energy efficiency and better thermal behavior. We use both direct measurements and modeling to quantify ... Keywords: system-level energy consumption, software optimization, performance-energy-thermal distribution, green software, energy efficiency, power estimator, multicore systems, regressing measurements, custom-designed suite, microbenchmarks, software tuning, scalability, parallel application

M. A. Khan; C. Hankendi; A. K. Coskun; M. C. Herbordt

2011-07-01T23:59:59.000Z

390

A pilot study of the building integrated photovoltaic thermal (BIPVT) collector for commercial applications in Malaysia  

Science Conference Proceedings (OSTI)

Building integrated photovoltaic thermal solar collector (BIPVT) has been designed to produce both electricity and hot water and later integrated to building. The hot water is produced at the useful temperatures for the applications in Malaysia such ... Keywords: BIPVT collector, hot water heating system, thermal and electrical efficiency

A. Ibrahim; M. Y. Othman; M. H. Ruslan; S. Mat; A. Zaharim; K. Sopian

2011-07-01T23:59:59.000Z

391

Method of operating a thermal engine powered by a chemical reaction  

DOE Patents (OSTI)

The invention involves a novel method of increasing the efficiency of a thermal engine. Heat is generated by a non-linear chemical reaction of reactants, said heat being transferred to a thermal engine such as Rankine cycle power plant. The novel method includes externally perturbing one or more of the thermodynamic variables of said non-linear chemical reaction.

Ross, John (Stanford, CA); Escher, Claus (Nieder-Ronstadt, DE)

1988-01-01T23:59:59.000Z

392

Method of operating a thermal engine powered by a chemical reaction  

DOE Patents (OSTI)

The invention involves a novel method of increasing the efficiency of a thermal engine. Heat is generated by a non-linear chemical reaction of reactants, said heat being transferred to a thermal engine such as Rankine cycle power plant. The novel method includes externally perturbing one or more of the thermodynamic variables of said non-linear chemical reaction. 7 figs.

Ross, J.; Escher, C.

1988-06-07T23:59:59.000Z

393

The use of thermal energy storage for energy system based on cogeneration plant  

Science Conference Proceedings (OSTI)

Usage of thermal energy storage together with cogeneration technology provides an attractive solution by allowing the production of electricity in the periods, when heat load is low and later consumption of heat, when load is high. The purpose of the ... Keywords: CHP, cogeneration, energy efficiency, energy system, thermal storage

Anna Volkova; Andres Siirde

2011-07-01T23:59:59.000Z

394

Thermal insulation for residential homes. (Latest citations from the NTIS bibliographic database). Published Search  

SciTech Connect

The bibliography contains citations concerning materials and methods used for thermal insulation of residential homes. The thermal efficiency of window glass, cellular materials, glass wool, fibers, wood, foams, and other insulating materials is reviewed. Construction methods and insulation effectiveness are compared among geographic regions. (Contains 250 citations and includes a subject term index and title list.)

NONE

1995-01-01T23:59:59.000Z

395

Thermal insulation for residential homes. (Latest citations from the NTIS data base). Published Search  

SciTech Connect

The bibliography contains citations concerning materials and methods used for thermal insulation of residential buildings. The thermal efficiency of window glass, cellular materials, glass wool, fibers, wood, foams, and other insulating materials is reviewed. Construction methods and insulation R values are compared between geographic regions. (Contains a minimum of 217 citations and includes a subject term index and title list.)

Not Available

1992-06-01T23:59:59.000Z

396

Thermal insulation for residential homes. (Latest citations from the NTIS bibliographic database). Published Search  

SciTech Connect

The bibliography contains citations concerning materials and methods used for thermal insulation of residential homes. The thermal efficiency of window glass, cellular materials, glass wool, fibers, wood, foams, and other insulating materials is reviewed. Construction methods and insulation effectiveness are compared among geographic regions. (Contains a minimum of 219 citations and includes a subject term index and title list.)

Not Available

1993-09-01T23:59:59.000Z

397

Thermal insulation for residential homes. (Latest citations from the NTIS Bibliographic database). Published Search  

SciTech Connect

The bibliography contains citations concerning materials and methods used for thermal insulation of residential homes. The thermal efficiency of window glass, cellular materials, glass wool, fibers, wood, foams, and other insulating materials is reviewed. Construction methods and insulation effectiveness are compared among geographic regions. (Contains a minimum of 220 citations and includes a subject term index and title list.)

Not Available

1993-12-01T23:59:59.000Z

398

They`re he-e-re (almost): The 60% efficient combined cycle  

SciTech Connect

This article examines the technology that promises 60% efficiency from combined-cycle power plants. The topics of the article include advancing design, off-peak thermal energy storage, improving heat recovery steam generator performance, Kalina thermal cycle, performance of Kalina combined-cycle plants, and heat recovery in vapor generators.

DeMoss, T.B.

1996-07-01T23:59:59.000Z

399

Preliminary requirements for thermal storage subsystems in solar thermal applications  

DOE Green Energy (OSTI)

Methodologies for the analysis of value and comparing thermal storage concepts are presented. Value is a measure of worth and is determined by the cost of conventional fuel systems. Value data for thermal storage in large solar thermal electric power applications are presented. Thermal storage concepts must be compared when all are performing the same mission. A method for doing that analysis, called the ranking index, is derived. Necessary data to use the methodology are included.

Copeland, R.J.

1980-04-01T23:59:59.000Z

400

The Efficient Windows Collaborative  

SciTech Connect

The Efficient Windows Collaborative (EWC) is a coalition of manufacturers, component suppliers, government agencies, research institutions, and others who partner to expand the market for energy efficient window products. Funded through a cooperative agreement with the U.S. Department of Energy, the EWC provides education, communication and outreach in order to transform the residential window market to 70% energy efficient products by 2005. Implementation of the EWC is managed by the Alliance to Save Energy, with support from the University of Minnesota and Lawrence Berkeley National Laboratory.

Petermann, Nils

2006-03-31T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Efficient independent component analysis  

E-Print Network (OSTI)

Independent component analysis (ICA) has been widely used for blind source separation in many fields such as brain imaging analysis, signal processing and telecommunication. Many statistical techniques based on M-estimates have been proposed for estimating the mixing matrix. Recently several nonparametric methods have been developed but in-depth analysis on asymptotic efficiency has not been available. We analyze ICA using semiparametric theories and propose a straightforward estimate based on the efficient score function by using B-spline approximations. The estimate is asymptotically efficient under moderate conditions and exhibits better performance than standard ICA methods in a variety of simulations.

Chen, Aiyou

2006-01-01T23:59:59.000Z

402

National Solar Thermal Test Facility  

SciTech Connect

This is a brief report about a Sandia National Laboratory facility which can provide high-thermal flux for simulation of nuclear thermal flash, measurements of the effects of aerodynamic heating on radar transmission, etc

Cameron, C.P.

1989-12-31T23:59:59.000Z

403

Redding Electric - Residential and Commercial Energy Efficiency Rebate  

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

Residential and Commercial Energy Efficiency Residential and Commercial Energy Efficiency Rebate Program Redding Electric - Residential and Commercial Energy Efficiency Rebate Program < Back Eligibility Commercial Low-Income Residential Residential Savings Category Home Weatherization Commercial Weatherization Sealing Your Home Heating & Cooling Commercial Heating & Cooling Cooling Other Ventilation Manufacturing Heat Pumps Appliances & Electronics Commercial Lighting Lighting Water Heating Windows, Doors, & Skylights Maximum Rebate Windows: $250 - Residential; $750 (Commercial) Insulation: up to $500 - Residential; pre-approval required - Commercial Water Heater Blanket: $20 per unit Radiant/Thermal Barrier Material: $500 - Residential; pre-approval required - Commercial Duct Repair/Replacement: $500

404

Thermal Energy Storage (TES): Past, Present and Future  

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

Thermal Energy Storage (TES): Past, Present and Future Thermal Energy Storage (TES): Past, Present and Future Speaker(s): Klaus Schiess Date: June 10, 2011 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Sila Kiliccote Thermal Energy Storage (TES) is a technology that stores "cooling" energy in a thermal storage mass. In the eighties and early nineties the utilities in California incentivised this technology to shift electrical on-peak power to off-peak. Thereafter, for various reasons TES became the most neglected permanent load shifting opportunity. It is only now with the challenges that the renewables provide that TES may have a come- back because it is basically the best and most economical AC battery available with a round trip efficiency of 100% or even better. This presentation gives some background to this development and shows the interdependence of

405

Thermal characteristics of a classical solar telescope primary mirror  

E-Print Network (OSTI)

We present a detailed thermal and structural analysis of a 2m class solar telescope mirror which is subjected to a varying heat load at an observatory site. A 3-dimensional heat transfer model of the mirror takes into account the heating caused by a smooth and gradual increase of the solar flux during the day-time observations and cooling resulting from the exponentially decaying ambient temperature at night. The thermal and structural response of two competing materials for optical telescopes, namely Silicon Carbide -best known for excellent heat conductivity and Zerodur -preferred for its extremely low coefficient of thermal expansion, is investigated in detail. The insight gained from these simulations will provide a valuable input for devising an efficient and stable thermal control system for the primary mirror.

Banyal, Ravinder K

2011-01-01T23:59:59.000Z

406

AQUIFER THERMAL ENERGY STORAGE-A SURVEY  

E-Print Network (OSTI)

High temperature underground thermal energy storage, inProceedings, Thermal Energy Storage in Aquifers Workshop:underground thermal energy storage, in ATES newsletter:

Tsang, Chin Fu

2012-01-01T23:59:59.000Z

407

Thermal Transport in Graphene Multilayers and Nanoribbons  

E-Print Network (OSTI)

1 CHAPTER 2 Thermal transport atvalues of graphenes thermal conductivity and different1 Thermal conductivity : metals and non - metallic

Subrina, Samia

2011-01-01T23:59:59.000Z

408

Modeling thermal comfort in stratified environments  

E-Print Network (OSTI)

Arens E. , and Wang D. 2004. "Thermal sensation and comfortin transient non-uniform thermal environments", European7730, 1994, Moderate Thermal Environments Determination of

Zhang, H.; Huizenga, C.; Arens, Edward A; Yu, T.

2005-01-01T23:59:59.000Z

409

Thermal Conduction in Graphene and Graphene Multilayers  

E-Print Network (OSTI)

1 1.2 Thermal transport atxv Introduction xii 1.1 Thermal conductivity and65 4.13 Thermal conductivity of graphene as a function of

Ghosh, Suchismita

2009-01-01T23:59:59.000Z

410

Indoor Thermal Comfort, an Evolutionary Biology Perspective  

E-Print Network (OSTI)

ASHRAE Standard 55-2004: Thermal environmental conditionsA behavioural approach to thermal comfort assessment inBerger, X. , 1998. Human thermal comfort at Nimes in summer

Stoops, John L.

2006-01-01T23:59:59.000Z

411

AQUIFER THERMAL ENERGY STORAGE-A SURVEY  

E-Print Network (OSTI)

1978, High temperature underground thermal energy storage,in Proceedings, Thermal Energy Storage in Aquifers Workshop:High temperature underground thermal energy storage, in ATES

Tsang, Chin Fu

2012-01-01T23:59:59.000Z

412

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

B. Quale. Seasonal storage of thermal energy in water in theand J. Schwarz, Survey of Thermal Energy Storage in AquifersSecond Annual Thermal Energy Storage Contractors'

Authors, Various

2011-01-01T23:59:59.000Z

413

Consortium for Energy Efficiency  

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

ti ti M k t o p p y Accelerating Markets for Super Efficient for Super Efficient Products and Services Federal Utility Partnership W rking Gro 2009 Fall Working Group 2009 Fall Meeting Ed Wisniewski Deputy Director November 19, 2009 Ontario, CA Who We Are Who We Are Created in 1991 by y administrators of ratepayer-funded EE programs and non- profits As their organization to: * Leverag ge efficiency y resources ( (US & Canada) ) to address structural market barrier & capture greater total savings * Sh Share "b "best" t" practi tices * Identify common needs to enhance savings impacts impacts 3 Who We Are Who We Are Nonprofit Governed and funded by members and sponsors 118 members from states and provinces with ratepayer-funded efficiency programs

414

Energy efficient data centers  

E-Print Network (OSTI)

Energy Efficiency Energy Systems Integration What follows issystems approach (integration) Develop standards as well as guides Establish champion industry group (e.g. energysystems approach (integration) Develop standards as well as guides Establish champion industry group (e.g. energy

Tschudi, William; Xu, Tengfang; Sartor, Dale; Koomey, Jon; Nordman, Bruce; Sezgen, Osman

2004-01-01T23:59:59.000Z

415

JANUARY 2010 Energy Efficiency &  

E-Print Network (OSTI)

JANUARY 2010 Energy Efficiency & Renewable Energy 2008 SOLAR TECHNOLOGIES MARKET REPORT #12;i Table......................................................................................... 105 5.1 Private Investment in Solar Energy .................................................................................. 105 5.2 U.S. Department of Energy Investment in Solar Energy

416

Energy Efficient Digital Networks  

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

with EETD scientists on cooperative research? Get a job in EETD? Make my home more energy-efficient? Find a source within EETD for a news story I'm writing, shooting, or...

417

Photovoltaic Cell Conversion Efficiency  

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

The conversion efficiency of a photovoltaic (PV) cell, or solar cell, is the percentage of the solar energy shining on a PV device that is converted into electrical energy, or electricity....

418

Photovoltaic Cell Quantum Efficiency  

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

Quantum efficiency (QE) is the ratio of the number of charge carriers collected by a photovoltaic (PV) cell to the number of photonsor packets of lightof a given energy shining on the solar cell....

419

Efficient Data Centers  

Science Conference Proceedings (OSTI)

Results and FindingsThis technical update provides an overview of airflow management using variable speed drives (VSDs) on direct expansion (DX) computer room air conditioners (CRACs), and particularly how reduced airflow can improve energy efficiency in data centers. VSDs on CRAC units coupled with good airflow management within a data center can have a dramatic impact on energy efficiency. Typically, a lot more cold air is circulated within conventional data centers ...

2012-12-20T23:59:59.000Z

420

Energy Efficiency Planning Guidebook  

Science Conference Proceedings (OSTI)

Demand planning is an essential undertaking for utilities looking to understand and quantify the dispatchable resources associated with energy efficiency and demand response programs. Further, demand planning enables a utility to select the most appropriate, cost-effective suite of energy efficiency technologies, demand response technologies, and program delivery mechanisms for its unique market and operating conditions as well as the optimal level of investment. This guidebook reviews and explains a com...

2008-07-07T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

THERMAL INSULATION MATERIALS TEST METHOD ...  

Science Conference Proceedings (OSTI)

... _____ 01/W01 CAN/CGSB-51.2-M88 Thermal Insulation, Calcium Silicate, for Piping, Machinery and Boilers _____ ...

2012-05-22T23:59:59.000Z

422

Liquid metal thermal electric converter  

DOE Patents (OSTI)

A liquid metal thermal electric converter which converts heat energy to electrical energy. The design of the liquid metal thermal electric converter incorporates a unique configuration which directs the metal fluid pressure to the outside of the tube which results in the structural loads in the tube to be compressive. A liquid metal thermal electric converter refluxing boiler with series connection of tubes and a multiple cell liquid metal thermal electric converter are also provided.

Abbin, Joseph P. (Albuquerque, NM); Andraka, Charles E. (Albuquerque, NM); Lukens, Laurance L. (Albuquerque, NM); Moreno, James B. (Albuquerque, NM)

1989-01-01T23:59:59.000Z

423

NVLAP Thermal Insulation Materials LAP  

Science Conference Proceedings (OSTI)

... for thermal insulation materials. The final report for Round 31 was released in February 2010. Proficiency testing is on hold ...

2013-07-18T23:59:59.000Z

424

Energy Efficiency Upgrades  

Science Conference Proceedings (OSTI)

The energy efficiency upgrades project at Hardin County General Hospital did not include research nor was it a demonstration project. The project enabled the hospital to replace outdated systems with modern efficient models. Hardin County General Hospital is a 501c3, nonprofit hospital and the sole community provider for Hardin and Pope Counties of Illinois. This project provided much needed equipment and facility upgrades that would not have been possible through locally generated funding. Task 1 was a reroofing of the hospital. The hospital architect designed the replacement to increase the energy efficiency of the hospital roof/ceiling structure. Task 2 was replacement and installation of a new more efficient CT scanner for the hospital. Included in the project was replacement of HVAC equipment for the entire radiological suite. Task 5 was a replacement and installation of a new higher capacity diesel-fueled emergency generator for the hospital replacing a 50+ year old gas-fired generator. Task 7 was the replacement of 50+ year-old walk-in cooler/freezer with a newer, energy efficient model. Task 8 was the replacement of 10+ year-old washing machines in the hospital laundry with higher capacity, energy efficient models. Task 9 was replacement of 50-year old single pane curtain window system with double-pane insulated windows. Additionally, insulation was added around ventilation systems and the curtain wall system.

Roby Williams

2012-03-29T23:59:59.000Z

425

Managing Energy Efficiency Improvement  

E-Print Network (OSTI)

In 1991, the World Business Council for Sustainable Development (WBCSD) introduced Eco- Efficiency as a management strategy to link financial and environmental performance to create more value with less ecological impact. Based on this strategy, CETAC-WEST (Canadian Environmental Technology Advancement Corporation - West), in mid-2000, introduced a practical approach to eco-efficiency to Western Canada's upstream oil and gas sector. The CETAC-WEST Eco-Efficiency Program, focused primarily on sour gas processing facilities, has developed methods and programs to identify opportunities for energy conservation and GHG reductions. The program outlined in this paper consists of four interrelated phases that are used to identify and track efficiency opportunities as well as promote the use of energy efficient methodologies and technologies. If, as program results suggest, 15% to 20% of the gas that is now consumed at by plant operations can be saved through efficiencies, it would save $500 to $700 million worth of gas for sale on the market. Although this small Pilot Program in the gas processing sector has surfaced major opportunities, there are significantly greater opportunities in other sectors with high GHG emissions intensity, such as sweet gas processing, conventional oil, heavy oil and oil sands. Capturing these opportunities will require a carefully considered strategy. This strategy should include, in addition to commitments for expanding the scope of the current Program, sustained leadership by industry champions and by governments - all aimed at changing the operating mode and improving the culture in the oil and gas industry.

Almaguer, J.

2006-01-01T23:59:59.000Z

426

Efficient Windows Collaborative  

SciTech Connect

The project goals covered both the residential and commercial windows markets and involved a range of audiences such as window manufacturers, builders, homeowners, design professionals, utilities, and public agencies. Essential goals included: (1) Creation of 'Master Toolkits' of information that integrate diverse tools, rating systems, and incentive programs, customized for key audiences such as window manufacturers, design professionals, and utility programs. (2) Delivery of education and outreach programs to multiple audiences through conference presentations, publication of articles for builders and other industry professionals, and targeted dissemination of efficient window curricula to professionals and students. (3) Design and implementation of mechanisms to encourage and track sales of more efficient products through the existing Window Products Database as an incentive for manufacturers to improve products and participate in programs such as NFRC and ENERGY STAR. (4) Development of utility incentive programs to promote more efficient residential and commercial windows. Partnership with regional and local entities on the development of programs and customized information to move the market toward the highest performing products. An overarching project goal was to ensure that different audiences adopt and use the developed information, design and promotion tools and thus increase the market penetration of energy efficient fenestration products. In particular, a crucial success criterion was to move gas and electric utilities to increase the promotion of energy efficient windows through demand side management programs as an important step toward increasing the market share of energy efficient windows.

Nils Petermann

2010-02-28T23:59:59.000Z

427

Efficient Windows Collaborative  

SciTech Connect

The project goals covered both the residential and commercial windows markets and involved a range of audiences such as window manufacturers, builders, homeowners, design professionals, utilities, and public agencies. Essential goals included: (1) Creation of 'Master Toolkits' of information that integrate diverse tools, rating systems, and incentive programs, customized for key audiences such as window manufacturers, design professionals, and utility programs. (2) Delivery of education and outreach programs to multiple audiences through conference presentations, publication of articles for builders and other industry professionals, and targeted dissemination of efficient window curricula to professionals and students. (3) Design and implementation of mechanisms to encourage and track sales of more efficient products through the existing Window Products Database as an incentive for manufacturers to improve products and participate in programs such as NFRC and ENERGY STAR. (4) Development of utility incentive programs to promote more efficient residential and commercial windows. Partnership with regional and local entities on the development of programs and customized information to move the market toward the highest performing products. An overarching project goal was to ensure that different audiences adopt and use the developed information, design and promotion tools and thus increase the market penetration of energy efficient fenestration products. In particular, a crucial success criterion was to move gas and electric utilities to increase the promotion of energy efficient windows through demand side management programs as an important step toward increasing the market share of energy efficient windows.

Nils Petermann

2010-02-28T23:59:59.000Z

428

Efficiency Maine Multifamily Efficiency Program | Department of Energy  

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

Efficiency Maine Multifamily Efficiency Program Efficiency Maine Multifamily Efficiency Program Efficiency Maine Multifamily Efficiency Program < Back Eligibility Multi-Family Residential Savings Category Heating & Cooling Home Weatherization Construction Commercial Weatherization Commercial Heating & Cooling Design & Remodeling Program Info State Maine Program Type State Rebate Program Rebate Amount Upon approval of Energy Reduction Plan: $100 prescriptive path per apartment unit; $200 modeling path per apartment unit Upon approval of installations: $1400 all paths or 50% of installed cost (whichever is less) Efficiency Maine's Multifamily Efficiency Program offers incentives to multifamily residency building owners for improving energy efficiency. Residencies must have 5 to 20 apartment units to qualify for this rebate.

429

Efficiency of silicon solar cells containing chromium  

DOE Patents (OSTI)

Efficiency of silicon solar cells containing about 10.sup.15 atoms/cm.sup.3 of chromium is improved about 26% by thermal annealing of the silicon wafer at a temperature of 200.degree. C. to form chromium precipitates having a diameter of less than 1 Angstrom. Further improvement in efficiency is achieved by scribing laser lines onto the back surface of the wafer at a spacing of at least 0.5 mm and at a depth of less than 13 micrometers to preferentially precipitate chromium near the back surface and away from the junction region of the device. This provides an economical way to improve the deleterious effects of chromium, one of the impurities present in metallurgical grade silicon material.

Frosch, Robert A. Administrator of the National Aeronautics and Space (New Port Beach, CA); Salama, Amal M. (New Port Beach, CA)

1982-01-01T23:59:59.000Z

430

Energy efficient buildings: A world of possibilities  

SciTech Connect

Throughout the world, buildings are a major energy consumer. However, it can be shown that buildings that save from 30 to 50% over common practice can be built using available technologies while actually increasing occupant comfort and functionality. In addition, many technologies are in the development stage that promise even further increases in energy efficiency in buildings. This paper reviews the current state-of-the-art in energy efficient building practice including building equipment and envelopes. Topics discussed include heating, ventilating and air conditioning equipment; lighting; insulation; building envelopes; and building commissioning. The energy effects of switching to non-chlorofluorocarbons in building insulation and refrigeration equipment are discussed. Advanced technologies currently under development that might have a substantial impact on future energy use including advanced absorption chillers, new lighting and window technologies, and thermally activated heat pumps are also described. 24 refs., 6 figs.

Kuliasha, M.A.

1991-01-01T23:59:59.000Z

431

Buildings Energy Data Book: 7.4 Efficiency Standards for Commercial HVAC  

Buildings Energy Data Book (EERE)

2 2 Efficiency Standards for Commercial Packaged Boilers Effective for products manufactured between January 1, 1994 and March 1, 2012 Combustion Efficiency (1) Gas-fired, with capacity ≥ 300,000 Btu/hr Not less than 80% Oil-fired, with capacity ≥ 300,000 Btu/hr Not less than 83% Effective for products manufactured on or after March 2, 2012 Size (Btu/hr) Efficiency Level (1) Gas-fired, hot water ≥300,000 and ≤2,500,000 80% thermal efficiency Gas-fired, hot water >2,500,000 82% combustion efficiency Oil-fired, hot water ≥300,000 and ≤2,500,000 82% thermal efficiency Oil-fired, hot water >2,500,000 84% combustion efficiency

432

Coupled power and thermal simulation with active cooling  

E-Print Network (OSTI)

Abstract. Power is rapidly becoming the primary design constraint for systems ranging from server computers to handhelds. In this paper we study microarchitecture-level coupled power and thermal simulation considering dynamic and leakage power models with temperature and voltage scaling. We develop an accurate temperature-dependent leakage power model and efficient temperature calculation, and show that leakage energy can be different by up to 10X for temperatures between 35 o C and 110 o C. Given the growing significance of leakage power and its sensitive dependence on temperature, no power simulation without considering dynamic temperature calculation is accurate. Furthermore, we discuss the thermal runaway induced by the interdependence between leakage power and temperature, and show that in the near future thermal runaway could be a severe problem. We also study the microarchitecture level coupled power and thermal management by novel active cooling techniques that reduce packaging thermal resistance. We show that the active cooling technique that reduces thermal resistance from 0.8 o C/W to 0.05 o C/W can increase system maximum clock by up to 2.44X under the same thermal constraints. 1

Weiping Liao; Lei He

2003-01-01T23:59:59.000Z

433

Thermal Systems Process and Components Laboratory (Fact Sheet)  

DOE Green Energy (OSTI)

This fact sheet describes the purpose, lab specifications, applications scenarios, and information on how to partner with NREL's Thermal Systems Process and Components Laboratory at the Energy Systems Integration Facility. The focus of the Thermal Systems Process and Components Laboratory at NREL's Energy Systems Integration Facility (ESIF) is to research, develop, test, and evaluate new techniques for thermal energy storage systems that are relevant to utility-scale concentrating solar power plants. The laboratory holds test systems that can provide heat transfer fluids for the evaluation of heat exchangers and thermal energy storage devices. The existing system provides molten salt at temperatures up to 800 C. This unit is charged with nitrate salt rated to 600 C, but is capable of handling other heat transfer fluid compositions. Three additional test bays are available for future deployment of alternative heat transfer fluids such as hot air, carbon dioxide, or steam systems. The Thermal Systems Process and Components Laboratory performs pilot-scale thermal energy storage system testing through multiple charge and discharge cycles to evaluate heat exchanger performance and storage efficiency. The laboratory equipment can also be utilized to test instrument and sensor compatibility with hot heat transfer fluids. Future applications in the laboratory may include the evaluation of thermal energy storage systems designed to operate with supercritical heat transfer fluids such as steam or carbon dioxide. These tests will require the installation of test systems capable of providing supercritical fluids at temperatures up to 700 C.

Not Available

2011-10-01T23:59:59.000Z

434

Advanced Metal-Hydrides-Based Thermal Battery: A New Generation of High Density Thermal Battery Based on Advanced Metal Hydrides  

Science Conference Proceedings (OSTI)

HEATS Project: The University of Utah is developing a compact hot-and-cold thermal battery using advanced metal hydrides that could offer efficient climate control system for EVs. The teams innovative designs of heating and cooling systems for EVs with high energy density, low-cost thermal batteries could significantly reduce the weight and eliminate the space constraint in automobiles. The thermal battery can be charged by plugging it into an electrical outlet while charging the electric battery and it produces heat and cold through a heat exchanger when discharging. The ultimate goal of the project is a climate-controlling thermal battery that can last up to 5,000 charge and discharge cycles while substantially increasing the driving range of EVs, thus reducing the drain on electric batteries.

None

2011-12-01T23:59:59.000Z

435

Holographic Thermal Helicity  

E-Print Network (OSTI)

We study the thermal helicity, defined in arXiv:1211.3850, of a conformal field theory with anomalies in the context of AdS$_{2n+1}$/CFT$_{2n}$. To do so, we consider large charged rotating AdS black holes in the Einstein-Maxwell-Chern-Simons theory with a negative cosmological constant using fluid/gravity expansion. We compute the anomaly-induced current and stress tensor of the dual CFT in leading order of the fluid/gravity derivative expansion and show their agreement with the field theoretical replacement rule for the thermal helicity. Such replacement rule is reflected in the bulk by new replacement rules obeyed by the Hall currents around the black hole.

Tatsuo Azeyanagi; R. Loganayagam; Gim Seng Ng; Maria J. Rodriguez

2013-11-12T23:59:59.000Z

436

Reactor Thermal-Hydraulics  

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

Thermal-Hydraulics Thermal-Hydraulics Dr. Tanju Sofu, Argonne National Laboratory In a power reactor, the energy produced in fission reaction manifests itself as heat to be removed by a coolant and utilized in a thermodynamic energy conversion cycle to produce electricity. A simplified schematic of a typical nuclear power plant is shown in the diagram below. Primary coolant loop Steam Reactor Heat exchanger Primary pump Secondary pump Condenser Turbine Water Although this process is essentially the same as in any other steam plant configuration, the power density in a nuclear reactor core is typically four orders of magnitude higher than a fossil fueled plant and therefore it poses significant heat transfer challenges. Maximum power that can be obtained from a nuclear reactor is often limited by the

437

Thermally stable diamond brazing  

DOE Patents (OSTI)

A cutting element and a method for forming a cutting element is described and shown. The cutting element includes a substrate, a TSP diamond layer, a metal interlayer between the substrate and the diamond layer, and a braze joint securing the diamond layer to the substrate. The thickness of the metal interlayer is determined according to a formula. The formula takes into account the thickness and modulus of elasticity of the metal interlayer and the thickness of the TSP diamond. This prevents the use of a too thin or too thick metal interlayer. A metal interlayer that is too thin is not capable of absorbing enough energy to prevent the TSP diamond from fracturing. A metal interlayer that is too thick may allow the TSP diamond to fracture by reason of bending stress. A coating may be provided between the TSP diamond layer and the metal interlayer. This coating serves as a thermal barrier and to control residual thermal stress.

Radtke, Robert P. (Kingwood, TX)

2009-02-10T23:59:59.000Z

438

Thermal spallation drilling  

DOE Green Energy (OSTI)

Thermal spallation drilling is an underdeveloped process with great potential for reducing the costs of drilling holes and mining shafts and tunnels in most very hard rocks. Industry has used this process to drill blast holes for emplacing explosives and to quarry granite. Some theoretical work has been performed, and many signs point to a great future for this process. The Los Alamos National Laboratory has studied the theory of the spallation process and is conducting experiments to prove out the system and to adapt it for use with a conventional rotary rig. This report describes work that has been accomplished at the Laboratory on the development of thermal spallation drilling and some work that is projected for the future on the system. 3 references, 3 figures.

Williams, R.E.

1985-01-01T23:59:59.000Z

439

Solar thermal power  

DOE Green Energy (OSTI)

Solar thermal power is produced by three types of concentrating systems, which utilize parabolic troughs, dishes, and heliostats as the solar concentrators. These systems are at various levels of development and commercialization in the United States and in Europe. The U.S. Industry is currently developing these systems for export at the end of this century and at the beginning of the next one for remote power, village electrification, and grid-connected power. U.S. utilities are not forecasting to need power generation capacity until the middle of the first decade of the 21{sup st} century. At that time, solar thermal electric power systems should be cost competitive with conventional power generation in some unique U.S. markets. In this paper, the authors describe the current status of the development of trough electric, dish/engine, and power tower solar generation systems. 46 refs., 20 figs., 8 tabs.

Mancini, T.R.; Kolb, G.J.; Prairie, M.R. [Sandia National Labs., Albuquerque, NM (United States)

1997-12-31T23:59:59.000Z

440

Thermal Stabilization Blend Plan  

SciTech Connect

This Blend Plan documents the feed material items that are stored in 2736-2 vaults, the 2736-ZB 638 cage, the 192C vault, and the 225 vault that will be processed through the thermal stabilization furnaces. The purpose of thermal stabilization is to heat the material to 1000 degrees Celsius to drive off all water and leave the plutonium and/or uranium as oxides. The stabilized material will be sampled to determine the Loss On Ignition (LOI) or percent water. The stabilized material must meet water content or LOI of less than 0.5% to be acceptable for storage under DOE-STD-3013-99 specifications. Out of specification material will be recycled through the furnaces until the water or LOI limits are met.

RISENMAY, H.R.

2000-05-02T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Categorical Exclusion Determinations: Office of Energy Efficiency and  

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

5, 2010 5, 2010 CX-000919: Categorical Exclusion Determination Packwood Lake Hydroelectric Project CX(s) Applied: B5.1 Date: 02/25/2010 Location(s): Washington Office(s): Energy Efficiency and Renewable Energy, Golden Field Office February 25, 2010 CX-000917: Categorical Exclusion Determination Ocean Thermal Energy Converter Life Cycle Cost Analysis Date: 02/25/2010 Location(s): Virginia Office(s): Energy Efficiency and Renewable Energy, Golden Field Office February 25, 2010 CX-000916: Categorical Exclusion Determination Ocean Thermal Extractable Energy Visualization CX(s) Applied: A9 Date: 02/25/2010 Location(s): Virginia Office(s): Energy Efficiency and Renewable Energy, Golden Field Office February 25, 2010 CX-000862: Categorical Exclusion Determination Mount Laurel Energy Audit Implementation Project

442

Current-Drive Efficiency in a Degenerate Plasma  

DOE Green Energy (OSTI)

a degenerate plasma, the rates of electron processes are much smaller than the classical model would predict, affecting the efficiencies of current generation by external non-inductive means, such as by electromagnetic radiation or intense ion beams. For electron-based mechanisms, the current-drive efficiency is higher than the classical prediction by more than a factor of 6 in a degenerate hydrogen plasma, mainly because the electron-electron collisions do not quickly slow down fast electrons. Moreover, electrons much faster than thermal speeds are more readily excited without exciting thermal electrons. In ion-based mechanisms of current drive, the efficiency is likewise enhanced due to the degeneracy effects, since the electron stopping power on slow ion beams is significantly reduced.

S. Son and N.J. Fisch

2005-11-01T23:59:59.000Z

443

THERMAL NEUTRONIC REACTOR  

DOE Patents (OSTI)

A novel thermal reactor was designed in which a first reflector formed from a high atomic weight, nonmoderating material is disposed immediately adjacent to the reactor core. A second reflector composed of a moderating material is disposed outwardly of the first reflector. The advantage of this novel reflector arrangement is that the first reflector provides a high slow neutron flux in the second reflector, where irradiation experiments may be conducted with a small effect on reactor reactivity.

Spinrad, B.I.

1960-01-12T23:59:59.000Z

444

Thermal reactor safety  

SciTech Connect

Information is presented concerning new trends in licensing; seismic considerations and system structural behavior; TMI-2 risk assessment and thermal hydraulics; statistical assessment of potential accidents and verification of computational methods; issues with respect to improved safety; human factors in nuclear power plant operation; diagnostics and activities in support of recovery; LOCA transient analysis; unresolved safety issues and other safety considerations; and fission product transport.

1980-06-01T23:59:59.000Z

445

Thermally actuated thermionic switch  

DOE Patents (OSTI)

A thermally actuated thermionic switch which responds to an increase of temperature by changing from a high impedance to a low impedance at a predictable temperature set point. The switch has a bistable operation mode switching only on temperature increases. The thermionic material may be a metal which is liquid at the desired operation temperature and held in matrix in a graphite block reservoir, and which changes state (ionizes, for example) so as to be electrically conductive at a desired temperature.

Barrus, D.M.; Shires, C.D.

1982-09-30T23:59:59.000Z

446

Electrochemical-thermal modeling and microscale phase change for passive internal thermal management of lithium ion batteries.  

SciTech Connect

A fully coupled electrochemical and thermal model for lithium-ion batteries is developed to investigate the impact of different thermal management strategies on battery performance. In contrast to previous modeling efforts focused either exclusively on particle electrochemistry on the one hand or overall vehicle simulations on the other, the present work predicts local electrochemical reaction rates using temperature-dependent data on commercially available batteries designed for high rates (C/LiFePO{sub 4}) in a computationally efficient manner. Simulation results show that conventional external cooling systems for these batteries, which have a low composite thermal conductivity ({approx}1 W/m-K), cause either large temperature rises or internal temperature gradients. Thus, a novel, passive internal cooling system that uses heat removal through liquid-vapor phase change is developed. Although there have been prior investigations of phase change at the microscales, fluid flow at the conditions expected here is not well understood. A first-principles based cooling system performance model is developed and validated experimentally, and is integrated into the coupled electrochemical-thermal model for assessment of performance improvement relative to conventional thermal management strategies. The proposed cooling system passively removes heat almost isothermally with negligible thermal resistances between the heat source and cooling fluid. Thus, the minimization of peak temperatures and gradients within batteries allow increased power and energy densities unencumbered by thermal limitations.

Fuller, Thomas F. (Georgia Institute of Technology, Atlanta, GA); Bandhauer, Todd (Georgia Institute of Technology, Atlanta, GA); Garimella, Srinivas (Georgia Institute of Technology, Atlanta, GA)

2012-01-01T23:59:59.000Z

447

Energy Efficiency Revitalization  

E-Print Network (OSTI)

To set the tone for my remarks I will start by saying- today, energy efficiency is a tough sell. In General Motors, our plant engineering people, faced with headcount deductions, budget cuts, and capital spending constraints are up to their you know what in alligators. Its a real challenge to try to keep a manufacturing or assembly plant running under the present circumstances. In todays atmosphere energy efficiency is just not a priority item demanding immediate action. Perhaps by this time you may have noticed I have not yet used the word conservation. This was a deliberate move. In General Motors, we are dropping the word conservation, which has developed a connotation of freezing in the dark and has been badly misunderstood over the years. We are opting for a more descriptive term- energy efficiency. As a matter of fact my title now is Manager-Energy Efficiency rather than Manager- Energy Conservation. We hope the use of the term energy efficiency will be more indicative of our endeavors and more in step with productivity and competitiveness. The business of saving money through increased energy efficiency needs all the help it can get. In fact, in our opinion, energy cost savings must become one of the before mentioned alligators. Or at least, a good sized burr in our collective saddles. Now dont get me wrong. I am not advocating being a nasty old ogre in regard to energy efficiency. By the way, ogre is defined as a dreaded person or object. Acting as an ogre will get you absolutely nothing but a lot of criticism and rebuff. What I am advocating is doing everything possible to keep energy efficiency in the lineup of important things our people must do to properly fulfill their jobs. It almost has to become second nature to our business such as quality and safety. Thats a big order and how do you do it? I certainly dont have all the answers to that question, but I will recount what we are attempting to do at GM in regard to energy efficiency. I do this with the hope that you may build on our experience and perhaps arrive at some new and original approach for our particular program.

Kelly, R. L.

1987-09-01T23:59:59.000Z

448

CALIFORNIA SOLAR INITIATIVE-THERMAL PROGRAMHANDBOOK  

E-Print Network (OSTI)

CALIFORNIA SOLAR INITIATIVE-THERMAL PROGRAMHANDBOOK CALIFORNIA PUBLIC UTILITIES California Solar Initiative Thermal Program Handbook i 1. Introduction to CSI-Thermal Program...........................................................................................................................11 #12;Table of Contents California Solar Initiative Thermal Program Handbook ii 2.5 Surface

449

Energy Efficiency -- Home Page  

U.S. Energy Information Administration (EIA) Indexed Site

If you are having trouble, call 202-586-8800 for help. If you are having trouble, call 202-586-8800 for help. Home >Energy Users EEnergy Efficiency Page Energy-Efficiency Measurement MEASUREMENT DISCUSSION: Measures and Policy Issues Energy Intensity as a Common Surrogate for Energy Efficiency Indices as a Measure of Relative Changes Market-Basket Comprehensive Factorial Decomposition Divisia Index OTHER MEASUREMENT APPROACHES: Best Practice MEASUREMENT ISSUES : Site Energy Versus Primary Energy Physical Versus Economic Units picture of line graph on stand Energy Efficiency Measurement Discussion The development of energy-efficiency indictors, for any country, is limited by the availability of data. Data are limited for several reasons. As the amount of data collected increases so do the costs of collecting, processing, and analyzing the data. The configuration of certain technologies and processes can also limit the possibility of obtaining microdata. As an example, in the manufacturing sector, some motors are encased in such a way that it is impossible to collect data on the motor unless records have been maintained for the motor. This leads to another reason data are limited--respondent burden. Care has to be taken so that surveys are not so long that participation is discouraged or inaccurate answers are given due to the difficulty and time it takes to obtain the data.

450

Model Predictive Control for Energy Efficient Buildings  

E-Print Network (OSTI)

Building thermal loadThe building thermal load predictor. . . . . . . .of Figures 1.1 Classification schematic for building MPC

Ma, Yudong

2012-01-01T23:59:59.000Z

451

Energy Efficient Commercial Technologies  

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

Commercial Technologies April 11th, 2012 Presented by: Warren Willits Energy Solutions Center (202) 824-7150 www.ESCenter.org Federal Utility Partnership Working Group Spring 2012 Jekyll Island, GA Todays Energy Efficient Technologies  Water Heating  Heating  Air Conditioning  Humidity Control  CHP / Cogeneration Atmospheric Direct Vent High Efficiency .7 EF Atmospheric water heaters now available 97 % efficient tank water heaters now available Traditional Tank Style Water Heating  Tankless Water Heaters  EF = .82 Standard Unit  EF = .97 Condensing  Solar Water Heaters  With H.E. gas back up systems Newer Water Heaters Water Heater Life Cycle Cost Life Cycle Costs Electric Tank Water Heater Gas Water Heater

452

Water Efficiency Program Prioritization  

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

Efficiency Program Efficiency Program Prioritization Federal Energy Management Program Office of Energy Efficiency and Renewable Energy January 2009 Will Lintner (william.lintner@ee.doe.gov) Federal Energy Management The Goal - EO 13423 Beginning in 2008, Federal agencies must reduce water consumption intensity through life- effective measures, relative to the baseline of the agency's water consumption in fiscal year 2007 by 2 percent annually through the end of FY 2015 or 16 percent by the end of FY 2015. 2 Water Use Intensit ty (gal/sqft) Federal Sector Glide-Path to Meeting WUI Reduction Goal 55 50 45 40 35 30 25 20 FY 07 FY 08 FY 09 FY 10 FY 11 FY 12 FY 13 FY 14 FY 15 Total Federal sector FY07 WUI Glide-Path for meeting WUI reduction goal (16%) 3 Next Steps * Compile Water Data FY 2008. The baseline for water

453

Efficient Data Transfer Protocols  

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

Efficient Efficient Data Transfer Protocols for Big Data Brian Tierney ∗ , Ezra Kissel † , Martin Swany † , Eric Pouyoul ∗ ∗ Lawrence Berkeley National Laboratory, Berkeley, CA 94270 † School of Informatics and Computing, Indiana University, Bloomington, IN 47405 Abstract-Data set sizes are growing exponentially, so it is important to use data movement protocols that are the most efficient available. Most data movement tools today rely on TCP over sockets, which limits flows to around 20Gbps on today's hardware. RDMA over Converged Ethernet (RoCE) is a promising new technology for high-performance network data movement with minimal CPU impact over circuit-based infrastructures. We compare the performance of TCP, UDP, UDT, and RoCE over high latency 10Gbps and 40Gbps network paths, and show that RoCE-based data transfers can fill a 40Gbps path using much less CPU than other protocols.

454

EIA Energy Efficiency-  

U.S. Energy Information Administration (EIA) Indexed Site

- Energy Efficiency, energy consumption - Energy Efficiency, energy consumption savings households, buildings, industry & vehicles Energy Savings Links Home > Households, Buildings & Industry > Energy Efficiency > Energy Savings Energy Savings saving energy in all sectors Last Page Modified: August 2010 All Sectors, Home, Commercial Building , Automobile Transportation, Manufacturing, Federal Government Program, Nonprofit and Other Organizations These links are provided solely as a service to our customers, and therefore should not be construed as advocating or reflecting any position of the Energy Information Administration (EIA). In addition, EIA does not guarantee the content or accuracy of any information presented in linked sites. If you have an "Energy Savings" web site that may be an appropriate link for this site, please contact us if you wish to be listed on this page.

455

Perspectives on Energy Efficiency  

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

2 2 nd U.S.-China Energy Efficiency Forum Dr. Arun Majumdar Director Advanced Research Projects Agency- Energy U.S. Department of Energy May 6, 2011 Berkeley, California Perspectives on Energy Efficiency 2 | U.S. Department of Energy energy.gov Policy Framework R&D - Advance innovative technologies for appliances, equipment, and products - Integrated buildings approaches Market Priming - Pull new products, practices and services into market faster at scale - Technical support to ENERGY STAR / new higher tier Codes & Standards - Leverage market priming and advanced technologies - Broaden coverage and update frequently to capture savings opportunities Increasing Energy Efficiency (Metrics) Number of Unit Sales At least $23B net benefits Over 3.5 quads saved annually Over 2

456

Use of computer simulation and molecular modeling techniques for the design of molecularly organized urea-urethane prototypes for thermal insulation  

Science Conference Proceedings (OSTI)

Polyurethane foams having densities as low as 120 kg/m3 are currently being used as thermal insulators. The closed-cell foam structure encompassing the air molecules prevents the thermal conductivity and enhances the efficiency of the used ... Keywords: Connolly surface, diffusion, free volume, molecular dynamics, polyurea-urethane foams, thermal insulators

Tarek M. Madkour

2008-12-01T23:59:59.000Z

457

Energy Efficiency Links  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Energy Efficiency Organizations Energy Efficiency Organizations Release Date: October 1999 Last Updated: Septembert 2009 EIA Links Disclaimer: These pages contain hypertext links to information created and maintained by other public and private organizations. These links provide additional information that may be useful or interesting and are being provided consistent with the intended purpose of the EIA website. EIA does not control or guarantee the accuracy, relevance, timeliness, or completeness of this outside information. EIA does not endorse the organizations sponsoring linked websites, the views they express, or the products and services they offer. U.S. Federal Government / Regional / U.S. Nonprofit / International U.S. Federal Government and Related Agencies

458

Energy Efficient Buildings Hub  

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

Henry C. Foley Henry C. Foley April 3, 2013 Presentation at the U.S. DOE Building Technologies Office Peer Review Meeting Purpose and Objectives * Problem Statement - Building energy efficiency has not increased in recent decades compared to other sectors especially transportation - Building component technologies have become more energy efficient but buildings as a whole have not * Impact of Project - A 20% reduction in commercial building energy use could save the nation four quads of energy annually * Project Focus - This is more than a technological challenge; the technology needed to achieve a 10% reduction in building energy use exists - The Hub approach is to comprehensively and systematically address

459

Assembly and testing of a composite heat pipe thermal intercept for HTS current leads  

SciTech Connect

We are building high temperature superconducting (HTS) current leads for a demonstration HTS-high gradient magnetic separation (HGMS) system cooled by a cryocooler. The current leads are entirely conductively cooled. A composite nitrogen heat pipe provides efficient thermal communication, and simultaneously electrical isolation, between the lead and an intermediate temperature heat sink. Data on the thermal and electrical performance of the heat pipe thermal intercept are presented. The electrical isolation of the heat pipe was measured as a function of applied voltage with and without a thermal load across the heat pipe. The results show the electrical isolation with evaporation, condensation and internal circulation taking place in the heat pipe.

Daugherty, M.A.; Daney, D.E.; Prenger, F.C.; Hill, D.D.; Williams, P.M.; Boenig, H.J.

1995-09-01T23:59:59.000Z

460

Energy Efficiency Indicators Methodology Booklet  

E-Print Network (OSTI)

2000 NRCAN, 2006. Energy Efficiency Trends in Canada 1990 toResources Canadas Office of Energy Efficiency, Ottawa.NRCAN, 2009. Energy Efficiency Trends in Canada 1990 to

Sathaye, Jayant

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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

Thermal analysis of solar thermal energy storage in a molten-salt thermocline  

SciTech Connect

A comprehensive, two-temperature model is developed to investigate energy storage in a molten-salt thermocline. The commercially available molten salt HITEC is considered for illustration with quartzite rocks as the filler. Heat transfer between the molten salt and quartzite rock is represented by an interstitial heat transfer coefficient. Volume-averaged mass and momentum equations are employed, with the Brinkman-Forchheimer extension to the Darcy law used to model the porous-medium resistance. The governing equations are solved using a finite-volume approach. The model is first validated against experiments from the literature and then used to systematically study the discharge behavior of thermocline thermal storage system. Thermal characteristics including temperature profiles and discharge efficiency are explored. Guidelines are developed for designing solar thermocline systems. The discharge efficiency is found to be improved at small Reynolds numbers and larger tank heights. The filler particle size strongly influences the interstitial heat transfer rate, and thus the discharge efficiency. (author)

Yang, Zhen; Garimella, Suresh V. [Cooling Technologies Research Center, NSF I/UCRC, School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-2088 (United States)

2010-06-15T23:59:59.000Z

462

COMPARISON OF THERMAL PROPERTIES OF THERMAL BARRIER COATING DEPOSITED ON IN738 USING STANDARD AIR PLASMA SPRAY WITH 100HE PLASMA SPRAY SYSTEM  

SciTech Connect

A typical blade material is made of Nickel super alloy and can bear temperatures up to 950C. But the operating temperature of a gas turbine is above the melting point of super alloy nearly at 1500C. This could lead to hot corrosions, high temperature oxidation, creep, thermal fatigue may takes place on the blade material. Though the turbine has an internal cooling system, the cooling is not adequate to reduce the temperature of the blade substrate. Therefore to protect the blade material as well as increase the efficiency of the turbine, thermal barrier coatings (TBCs) must be used. A TBC coating of 250 ?m thick can reduce the temperature by up to 200 C. Air Plasma Spray Process (APS) and High Enthalpy Plasma Spray Process (100HE) were the processes used for coating the blades with the TBCs. Because thermal conductivity increases with increase in temperature, it is desired that these processes yield very low thermal conductivities at high temperatures in order not to damage the blade. An experiment was carried out using Flash line 5000 apparatus to compare the thermal conductivity of both processes.The apparatus could also be used to determine the thermal diffusivity and specific heat of the TBCs. 75 to 2800 K was the temperature range used in the experimentation. It was found out that though 100HE has high deposition efficiency, the thermal conductivity increases with increase in temperatures whiles APS yielded low thermal conductivities.

Uppu, N.; Mensah, P.F.; Ofori, D.

2006-07-01T23:59:59.000Z

463

Thermal indicator for wells  

DOE Patents (OSTI)

Minute durable plate-like thermal indicators are employed for precision measuring static and dynamic temperatures of well drilling fluids. The indicators are small enough and sufficiently durable to be circulated in the well with drilling fluids during the drilling operation. The indicators include a heat resistant indicating layer, a coacting meltable solid component and a retainer body which serves to unitize each indicator and which may carry permanent indicator identifying indicia. The indicators are recovered from the drilling fluid at ground level by known techniques.

Gaven, Jr., Joseph V. (Oakton, VA); Bak, Chan S. (Newbury Park, CA)

1983-01-01T23:59:59.000Z

464

Multispectral thermal imaging  

SciTech Connect

Many remote sensing applications rely on imaging spectrometry. Here the authors use imaging spectrometry for thermal and multispectral signatures measured from a satellite platform enhanced with a combination of accurate calibrations and on-board data for correcting atmospheric distortions. The approach is supported by physics-based end-to-end modeling and analysis, which permits a cost-effective balance between various hardware and software aspects. The goal is to develop and demonstrate advanced technologies and analysis tools toward meeting the needs of the customer; at the same time, the attributes of this system can address other applications in such areas as environmental change, agriculture, and volcanology.

Weber, P.G.; Bender, S.C.; Borel, C.C.; Clodius, W.B.; Smith, B.W. [Los Alamos National Lab., NM (United States). Space and Remote Sensing Sciences Group; Garrett, A.; Pendergast, M.M. [Westinghouse Savannah River Corp., Aiken, SC (United States). Savannah River Technology Center; Kay, R.R. [Sandia National Lab., Albuquerque, NM (United States). Monitoring Systems and Technology Center

1998-12-01T23:59:59.000Z

465

Thermal Stabilization Blend Plan  

SciTech Connect

The Blend Plan was written to identify items stored outside of the 213 MBA that will be moved into the MBA for thermal stabilization processing. Product quality oxide items stored in our vaults are found in Appendix A. A table is included in Appendix A which details the isotopic values for the oxide items and calculates the amount of material of any specific run that can be placed in a product can and maintain the 15 watt limit to meet storage vault specifications. This Revision of the Blend Plan adds items of lesser dose rate to lower the exposure of the workers until additional shielding can be added to the gloveboxes.

RISENMAY, H.R.

2000-04-20T23:59:59.000Z

466

Advanced solar thermal technology  

SciTech Connect

The application of dish solar collectors to industrial process heat (IPH) has been reviewed. IPH represents a market for displacement of fossil fuels (10 quads/y). A 10% market penetration would indicate a substantial market for solar thermal systems. Apparently, parabolic dish systems can produce IPH at a lower cost than that of troughs or compound parabolic concentrators, even though dish fabrication costs per unit area are more expensive. Successful tests of point-focusing collectors indicate that these systems can meet the energy requirements for process heat applications. Continued efforts in concentrator and transport technology development are needed. 7 figures.

Leibowitz, L.P.; Hanseth, E.; Liu, T.M.

1982-06-01T23:59:59.000Z

467

Department of Energy - Energy Efficiency  

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

1 en Energy Efficiency: Helping Home Owners and Businesses Understand Energy Usage http:energy.govarticlesenergy-efficiency-helping-home-owners-and-businesses-understand-energy...

468

Energy Efficiency | Open Energy Information  

Open Energy Info (EERE)

Efficiency Jump to: navigation, search Energy Efficiency refers to products or systems using less energy to do the same or better job than conventional products or systems. Energy...

469

Energy Efficiency | Department of Energy  

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

Houck Low E Brings High Savings in Newark, Delaware Newark, Delaware used an Energy Efficiency and Conservation Block Grant to install energy efficient windows and lights. July...

470

Energy efficiency and appliance replacement  

E-Print Network (OSTI)

1004 ENERGY EFFICIENCY AND APPLIANCE REPLACEMENT Jeffrey T.adopt energy efficient appliances, even though the financialmix of energyusing appliances predicts that under plausible

LaFrance, Jeffrey T.

2005-01-01T23:59:59.000Z

471

NETL: Turbine Projects - Efficiency Improvement  

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

Efficiency Improvemenet Turbine Projects Efficiency Improvemenet Advanced Hot Section Materials and Coatings Test Rig DataFact Sheets System Study for Improved Gas Turbine...

472

Hard thermal effective action in QCD through the thermal operator  

E-Print Network (OSTI)

Through the application of the thermal operator to the zero temperature retarded Green's functions, we derive in a simple way the well known hard thermal effective action in QCD. By relating these functions to forward scattering amplitudes for on-shell particles, this derivation also clarifies the origin of important properties of the hard thermal effective action, such as the manifest Lorentz and gauge invariance of its integrand.

Ashok Das; J. Frenkel

2007-03-08T23:59:59.000Z

473

2 Technology Description: Solar Thermal Parabolic Trough Solar Thermal  

E-Print Network (OSTI)

Parabolic troughs track sun, concentrate incident light onto a centralized, tubular receiver that runs length of each trough Thermal fluid circulates through all receivers in solar field Thermal fluid brought to one or more centralized power production facilities Heat transferred to a steam cycle, drives a steam turbine to generate power Cooled thermal fluid is then recirculated th through h solar fi field ld Wet cooling is common, dry cooling possible

Timothy J. Skone; Risks Of Implementation

2012-01-01T23:59:59.000Z

474

Energy Efficiency & Renewable Energy  

E-Print Network (OSTI)

's buildings and will provide hot water. Table 7: Summary of UTC Power 2009 Projects Source: Fuel Cells 2000Energy Efficiency & Renewable Energy 2009 FUEL CELL MARKET REPORT NOVEMBER 2010 #12;Authors was the result of hard work and valuable contributions from government staff and the fuel cell industry

475

ENERGY EFFICIENT LAUNDRY PROCESS  

SciTech Connect

With the rising cost of energy and increased concerns for pollution and greenhouse gas emissions from power generation, increased focus is being put on energy efficiency. This study looks at several approaches to reducing energy consumption in clothes care appliances by considering the appliances and laundry chemistry as a system, rather than individually.

Tim Richter

2005-04-01T23:59:59.000Z

476

Energy Efficiency & Renewable Energy  

E-Print Network (OSTI)

Energy Efficiency & Renewable Energy 2009 WIND TECHNOLOGIES MARKET REPORT AUGUST 2010 #12;2009 Wind Associates) Suzanne Tegen (National Renewable Energy Laboratory) Table of Contents Acknowledgments' Association); Ed DeMeo (Renewable Energy Consulting Services, Inc.); Mike O'Sullivan (NextEra Energy Resources

477

Portfolio Manager Technical Reference: Thermal Conversion Factors | ENERGY  

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

Thermal Conversion Factors Thermal Conversion Factors Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In This Section Campaigns Commercial building design Communications resources Energy management guidance Financial resources Portfolio Manager Products and purchasing Recognition Research and reports Service and product provider (SPP) resources Success stories Target Finder

478

Thermal and Structural Equilibrium Studies of Organic Thermal ...  

Science Conference Proceedings (OSTI)

These organic materials undergo a solid-solid state phase transition before melting which will store large amounts of thermal energy. The binary system of...

479

Electric Vehicle Battery Thermal Issues and Thermal Management Techniques (Presentation)  

SciTech Connect

This presentation examines the issues concerning thermal management in electric drive vehicles and management techniques for improving the life of a Li-ion battery in an EDV.

Rugh, J. P.; Pesaran, A.; Smith, K.

2013-07-01T23:59:59.000Z

480

THERMODYNAMIC CONSIDERATIONS FOR THERMAL WATER SPLITTING PROCESSES AND HIGH TEMPERATURE ELECTROLYSIS  

DOE Green Energy (OSTI)

A general thermodynamic analysis of hydrogen production based on thermal water splitting processes is presented. Results of the analysis show that the overall efficiency of any thermal water splitting process operating between two temperature limits is proportional to the Carnot efficiency. Implications of thermodynamic efficiency limits and the impacts of loss mechanisms and operating conditions are discussed as they pertain specifically to hydrogen production based on high-temperature electrolysis. Overall system performance predictions are also presented for high-temperature electrolysis plants powered by three different advanced nuclear reactor types, over their respective operating temperature ranges.

J. E. O'Brien

2008-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "thermal efficiency nonrenewable" 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.