National Library of Energy BETA

Sample records for waste heat harvesting

  1. Harvesting Electricity From Wasted Heat

    ScienceCinema (OSTI)

    Schwede, Jared

    2014-07-16

    Scientists as SLAC National Laboratory explain the concept, Photon Enhanced Thermionic Emission (PETE), and how this process can capture more energy from photovoltaic panels by harnessing heat energy from sunlight.

  2. Harvesting Electricity From Wasted Heat

    SciTech Connect (OSTI)

    Schwede, Jared

    2014-06-30

    Scientists as SLAC National Laboratory explain the concept, Photon Enhanced Thermionic Emission (PETE), and how this process can capture more energy from photovoltaic panels by harnessing heat energy from sunlight.

  3. Recovering "Waste" from "WTEs"? Heat Attaching devices to flues and exhaust pipes could harvest waste heat-

    E-Print Network [OSTI]

    Columbia University

    that convert heat into electricity to chimney stacks and vehicle exhausts, to squeeze more useful energy from saving that would be especially relevant in hybrid petrol/electric devices where the battery is recharged% of the energy converted in power generation is wasted. The price of energy is high, both in terms of the actual

  4. Pyroelectric waste heat energy harvesting using relaxor ferroelectric 8/65/35 PLZT and the Olsen cycle

    E-Print Network [OSTI]

    Pilon, Laurent

    is dissipated as heat through the radiator and the exhaust pipe [2]. In the past decade, direct energyPyroelectric waste heat energy harvesting using relaxor ferroelectric 8/65/35 PLZT and the Olsen heat energy harvesting using relaxor ferroelectric 8/65/35 PLZT and the Olsen cycle Felix Y Lee, Sam

  5. Electronic waste disassembly with industrial waste heat

    E-Print Network [OSTI]

    2013-01-01

    and for e?ective use of industrial exhaust heat is describedto scale up the process to industrial production levels.Waste Disassembly with Industrial Waste Heat Mengjun

  6. Waste Heat Recovery

    Office of Environmental Management (EM)

    DRAFT - PRE-DECISIONAL - DRAFT 1 Waste Heat Recovery 1 Technology Assessment 2 Contents 3 1. Introduction to the TechnologySystem ......

  7. Specifying Waste Heat Boilers 

    E-Print Network [OSTI]

    Ganapathy, V.

    1992-01-01

    HEAT BOILERS V.Ganapathy.ABCO Industries Abilene,Texas ABSTRACT Waste heat boilers or Heat Recovery Steam 'Generators(HRSGs) as they are often called are used to recover energy from waste gas streams in chemical plants, refineries... stream_source_info ESL-IE-92-04-42.pdf.txt stream_content_type text/plain stream_size 11937 Content-Encoding ISO-8859-1 stream_name ESL-IE-92-04-42.pdf.txt Content-Type text/plain; charset=ISO-8859-1 SPECIFYING WASTE...

  8. Bioelectrochemical Integration of Waste Heat Recovery, Waste...

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

    oxygen demand (COD) and availability of low-grade waste heat sources. The pulp and paper industry and other industries are also potential MHRC users. Project Description This...

  9. Bioelectrochemical Integration of Waste Heat Recovery, Waste...

    Broader source: Energy.gov (indexed) [DOE]

    - Allentown, PA A microbial reverse electrodialysis technology will be combined with waste heat recovery to convert effluents into electricity and chemical products, including...

  10. Skutterudite Thermoelectric Generator For Automotive Waste Heat...

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

    Skutterudite Thermoelectric Generator For Automotive Waste Heat Recovery Skutterudite Thermoelectric Generator For Automotive Waste Heat Recovery Skutterudite TE modules were...

  11. Waste Heat Recovery Opportunities for Thermoelectric Generators...

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

    Waste Heat Recovery Opportunities for Thermoelectric Generators Waste Heat Recovery Opportunities for Thermoelectric Generators Thermoelectrics have unique advantages for...

  12. Harvesting Vehicle Exhaust with Zero Parasitics | Department...

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

    Harvesting Vehicle Exhaust with Zero Parasitics Thermal cycling pyroelectric generator is designed to harvest engine waste heat and electrify belt-driven components...

  13. Waste heat: Utilization and management

    SciTech Connect (OSTI)

    Sengupta, S.; Lee, S.S.

    1983-01-01

    This book is a presentation on waste heat management and utilization. Topics covered include cogeneration, recovery technology, low grade heat recovery, heat dispersion models, and ecological effects. The book focuses on the significant fraction of fuel energy that is rejected and expelled into the environment either as industrial waste or as a byproduct of installation/equipment operation. The feasibility of retrieving this heat and energy is covered, including technical aspects and potential applications. Illustrations demonstrate that recovery methods have become economical due to recent refinements. The book includes theory and practice concerning waste heat management and utilization.

  14. Cummins Waste Heat Recovery | Department of Energy

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

    Waste Heat Recovery Cummins Waste Heat Recovery Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit,...

  15. Thermoelectric Technology for Automotive Waste Heat Recovery...

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

    Technology for Automotive Waste Heat Recovery Thermoelectric Technology for Automotive Waste Heat Recovery Presentation given at the 2007 Diesel Engine-Efficiency & Emissions...

  16. Thermoelectric Generator Development for Automotive Waste Heat...

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

    for Automotive Waste Heat Recovery Thermoelectric Generator Development for Automotive Waste Heat Recovery Presentation given at the 16th Directions in Engine-Efficiency and...

  17. Modeling, Estimation, and Control of Waste Heat Recovery Systems

    E-Print Network [OSTI]

    Luong, David

    2013-01-01

    System for Waste Heat Recovery. ” Journal of Heat Transfer,Rankine cycle for waste heat recovery. ” Energy, 29:1207–Strategy of Waste Heat Recovery Organic Rankine Cycles. ”

  18. A Magnetomechanical Thermal Energy Harvester With A Reversible Liquid Interface

    E-Print Network [OSTI]

    He, Hong

    2012-01-01

    for Waste Heat Energy Harvesting and Thermal Conductanceand Mechanical Model of a Thermal Energy Harvesting Device”,to remove the excess thermal energy and prevent burning of

  19. Waste Heat Utilization System Property Tax Exemption

    Broader source: Energy.gov [DOE]

    Waste heat utilization systems are facilities and equipment for the recovery of waste heat generated in the process of generating electricity and the use of such heat to generate additional elect...

  20. Geek-Up[5.20.2011]: Electricity from Waste Heat, Fuel from Sunlight

    Broader source: Energy.gov [DOE]

    Did you know 50 percent of the energy generated annually from all sources is lost as waste heat? What scientists are doing to take advantage of this opportunity to save money and new developments in harvesting fuel through photosynthesis.

  1. Industrial Waste Heat Recovery 

    E-Print Network [OSTI]

    Ward, M. E.; Solomon, N. G.; Tabb, E. S.

    1980-01-01

    was that the upper material temperature limit of 1500oF is state-of-the-art for recuperators operating in an oxidizing environment produced by the com-bustion of Diesel No.2. A full size counter axial flow metal heat exchanger test module has successfully completed...

  2. An Introduction to Waste Heat Recovery 

    E-Print Network [OSTI]

    Darby, D. F.

    1985-01-01

    The recovery of waste heat energy is one element of a complete energy conservation plan. In addition to contributing to the goal of saving energy, utilization of waste heat is also an important source of cost savings. This presentation details...

  3. Characterization of industrial process waste heat and input heat streams

    SciTech Connect (OSTI)

    Wilfert, G.L.; Huber, H.B.; Dodge, R.E.; Garrett-Price, B.A.; Fassbender, L.L.; Griffin, E.A.; Brown, D.R.; Moore, N.L.

    1984-05-01

    The nature and extent of industrial waste heat associated with the manufacturing sector of the US economy are identified. Industry energy information is reviewed and the energy content in waste heat streams emanating from 108 energy-intensive industrial processes is estimated. Generic types of process equipment are identified and the energy content in gaseous, liquid, and steam waste streams emanating from this equipment is evaluated. Matchups between the energy content of waste heat streams and candidate uses are identified. The resultant matrix identifies 256 source/sink (waste heat/candidate input heat) temperature combinations. (MHR)

  4. Develop Thermoelectric Technology for Automotive Waste Heat Recovery...

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

    More Documents & Publications Skutterudite Thermoelectric Generator For Automotive Waste Heat Recovery Thermoelectric Conversion of Exhaust Gas Waste Heat into Usable...

  5. Waste Heat to Power Market Assessment

    SciTech Connect (OSTI)

    Elson, Amelia; Tidball, Rick; Hampson, Anne

    2015-03-01

    Waste heat to power (WHP) is the process of capturing heat discarded by an existing process and using that heat to generate electricity. In the industrial sector, waste heat streams are generated by kilns, furnaces, ovens, turbines, engines, and other equipment. In addition to processes at industrial plants, waste heat streams suitable for WHP are generated at field locations, including landfills, compressor stations, and mining sites. Waste heat streams are also produced in the residential and commercial sectors, but compared to industrial sites these waste heat streams typically have lower temperatures and much lower volumetric flow rates. The economic feasibility for WHP declines as the temperature and flow rate decline, and most WHP technologies are therefore applied in industrial markets where waste heat stream characteristics are more favorable. This report provides an assessment of the potential market for WHP in the industrial sector in the United States.

  6. Waste Heat Recapture from Supermarket Refrigeration Systems

    SciTech Connect (OSTI)

    Fricke, Brian A

    2011-11-01

    The objective of this project was to determine the potential energy savings associated with improved utilization of waste heat from supermarket refrigeration systems. Existing and advanced strategies for waste heat recovery in supermarkets were analyzed, including options from advanced sources such as combined heat and power (CHP), micro-turbines and fuel cells.

  7. Industrial Low Temperature Waste Heat Utilization 

    E-Print Network [OSTI]

    Altin, M.

    1981-01-01

    In this paper, some common and emerging techniques to better utilize energy in the chemical process industries are discussed. Temperature levels of waste heat available are pointed out. Emerging practices for further economical utilization of waste...

  8. Harvesting the Sun's Energy Through Heat as Well as Light | U...

    Office of Science (SC) Website

    new approach to harvesting solar energy, developed by MIT researchers, could improve efficiency by using sunlight to heat a high-temperature material whose infrared radiation would...

  9. Industrial Waste Heat Recovery Using Heat Pipes 

    E-Print Network [OSTI]

    Ruch, M. A.

    1981-01-01

    For almost a decade now, heat pipes with secondary finned surfaces have been utilized in counter flow heat exchangers to recover sensible energy from industrial exhaust gases. Over 3,000 such heat exchangers are now in service, recovering...

  10. New waste-heat-recovery units introduced

    SciTech Connect (OSTI)

    Not Available

    1982-09-13

    Three new entries in the waste-heat-recovery system market are introduced by JMC Energy Inc., National Energy Savers Products, and North American Manufacturing Co. There is a brief description of each unit's design, application, and cost. A directory lists 138 major manufacturers of waste-heat-recovery systems. (DCK)

  11. Waste Heat Recovery System: Lightweight Thermal Energy Recovery (LIGHTER) System

    SciTech Connect (OSTI)

    2010-01-01

    Broad Funding Opportunity Announcement Project: GM is using shape memory alloys that require as little as a 10°C temperature difference to convert low-grade waste heat into mechanical energy. When a stretched wire made of shape memory alloy is heated, it shrinks back to its pre-stretched length. When the wire cools back down, it becomes more pliable and can revert to its original stretched shape. This expansion and contraction can be used directly as mechanical energy output or used to drive an electric generator. Shape memory alloy heat engines have been around for decades, but the few devices that engineers have built were too complex, required fluid baths, and had insufficient cycle life for practical use. GM is working to create a prototype that is practical for commercial applications and capable of operating with either air- or fluid-based heat sources. GM’s shape memory alloy based heat engine is also designed for use in a variety of non-vehicle applications. For example, it can be used to harvest non-vehicle heat sources, such as domestic and industrial waste heat and natural geothermal heat, and in HVAC systems and generators.

  12. Electronic waste disassembly with industrial waste heat

    E-Print Network [OSTI]

    2013-01-01

    equipment for automatic dismantling of electronic componentsthe technology acceptance for dismantling of waste printedR. Research on with dismantling of PCB mounted electronic

  13. Waste Heat Management Options for Improving Industrial Process...

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

    Heat Management Options for Improving Industrial Process Heating Systems Waste Heat Management Options for Improving Industrial Process Heating Systems This presentation covers...

  14. Light weight and economical exhaust heat exchanger for waste...

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

    Light weight and economical exhaust heat exchanger for waste heat recovery using mixed radiant and convective heat transfer Light weight and economical exhaust heat exchanger for...

  15. Advanced Fluidized Bed Waste Heat Recovery Systems 

    E-Print Network [OSTI]

    Peterson, G. R.

    1988-01-01

    BED WASTE HEAT RECOVERY SYSTEMS G. R. PETERSON Project Manager U.S. Department of Energy, Idaho Operations Office Idaho Falls, Idaho ABSTRACT The U.S. Department of Energy, Office of Industri al Programs, has sponsored the development of a... Fluidized Bed Waste Heat Recovery System (FBWHRS) and a higher temperature variant, the Ceramic Tubular Distributor Plate (CTOP) Fluidized Bed Heat Exchanger (FBHX) system. Both systems recover energy from high-temperature flue gases and produce steam...

  16. Electrochemical Lithium Harvesting from Waste Li-ion Batteries Byron M. Wolfe III1

    E-Print Network [OSTI]

    Zhou, Yaoqi

    Electrochemical Lithium Harvesting from Waste Li-ion Batteries Byron M. Wolfe III1 , Wen Chao Lee1 This study demonstrates the feasibility of using water and the contents of waste Li-ion batteries for the electrodes in a Li-liquid battery system. Li metal was collected electrochemically from a waste Li

  17. Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound...

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

    Inc. 2002deerhopmann.pdf More Documents & Publications Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound Technology Diesel Engine Waste Heat Recovery...

  18. Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound...

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

    of Energy 2004deerhopmann.pdf More Documents & Publications Diesel Engine Waste Heat Recovery Utilizing Electric Trubocompound Technology Diesel Engine Waste Heat Recovery...

  19. Composites for Multi-energy conversion & waste heat recovery...

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

    Composites for Multi-energy conversion & waste heat recovery Composites for Multi-energy conversion & waste heat recovery Discusses development of a composite that transfers energy...

  20. Performance of an Organic Rankine Cycle Waste Heat Recovery System...

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

    Performance of an Organic Rankine Cycle Waste Heat Recovery System for Light Duty Diesel Engines Performance of an Organic Rankine Cycle Waste Heat Recovery System for Light Duty...

  1. Opportunities and Challenges of Thermoelectrlic Waste Heat Recovery...

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

    and Challenges of Thermoelectrlic Waste Heat Recovery in the Automotive Industry Opportunities and Challenges of Thermoelectrlic Waste Heat Recovery in the Automotive Industry 2005...

  2. Overview of Fords Thermoelectric Programs: Waste Heat Recovery...

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

    Fords Thermoelectric Programs: Waste Heat Recovery and Climate Control Overview of Fords Thermoelectric Programs: Waste Heat Recovery and Climate Control Overview of progress...

  3. Thermoelectric Waste Heat Recovery Program for Passenger Vehicles...

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

    Waste Heat Recovery Program for Passenger Vehicles Thermoelectric Waste Heat Recovery Program for Passenger Vehicles 2012 DOE Hydrogen and Fuel Cells Program and Vehicle...

  4. Thermoelectric Conversion of Waste Heat to Electricity in an...

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

    Conversion of Waste Heat to Electricity in an IC Engine-Powered Vehicle Thermoelectric Conversion of Waste Heat to Electricity in an IC Engine Powered Vehicle...

  5. An Overview of Thermoelectric Waste Heat Recovery Activities...

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

    An Overview of Thermoelectric Waste Heat Recovery Activities in Europe An Overview of Thermoelectric Waste Heat Recovery Activities in Europe An overview presentation of R&D...

  6. Heat Recovery From Solid Waste 

    E-Print Network [OSTI]

    Underwood, O. W.

    1981-01-01

    areas of evaluation, including the cost of fuel, cost of solid waste disposal, plant energy requirements, available technology, etc....

  7. Mobile power plants : waste body heat recovery

    E-Print Network [OSTI]

    Gibbons, Jonathan S. (Jonathan Scott), 1979-

    2004-01-01

    Novel methods to convert waste metabolic heat into useful and useable amounts of electricity were studied. Thermoelectric, magneto hydrodynamic, and piezo-electric energy conversions at the desired scope were evaluated to ...

  8. Develop Thermoelectric Technology for Automotive Waste Heat Recovery

    Broader source: Energy.gov [DOE]

    Develop thermoelectric technology for waste heat recovery with a 10% fuel economy improvement without increasing emissions.

  9. [Waste water heat recovery system

    SciTech Connect (OSTI)

    Not Available

    1993-04-28

    The production capabilities for and field testing of the heat recovery system are described briefly. Drawings are included.

  10. Waste Heat Utilization System Income Tax Deduction (Personal)

    Office of Energy Efficiency and Renewable Energy (EERE)

    Waste heat utilization system means facilities and equipment for the recovery of waste heat generated in the process of generating electricity and the use of such heat to generate additional elec...

  11. Waste Heat Utilization System Income Tax Deduction (Corporate)

    Office of Energy Efficiency and Renewable Energy (EERE)

    Waste heat utilization system means facilities and equipment for the recovery of waste heat generated in the process of generating electricity and the use of such heat to generate additional elec...

  12. Economic Options for Upgrading Waste Heat 

    E-Print Network [OSTI]

    Erickson, D. C.

    1983-01-01

    high and low pressures. These devices are extremely simple and low cost, having no moving parts. In a heat pumping application, the capital cost of this type configuration would be dominated by any necessary heat exchangers. Perez Blanco (1... to a lower temperature. This variation corresponds functionally to the waste heat powered mechanical com pressor, as indicated in Figure 2. Perez Blanco (1) describes several reverse absorption configurations and Erickson (14, 15) describes...

  13. An electrochemical system for efficiently harvesting low-grade heat energy

    E-Print Network [OSTI]

    Lee, Seok Woo

    Efficient and low-cost thermal energy-harvesting systems are needed to utilize the tremendous low-grade heat sources. Although thermoelectric devices are attractive, its efficiency is limited by the relatively low ...

  14. Waste Heat Recovery from Refrigeration 

    E-Print Network [OSTI]

    Jackson, H. Z.

    1982-01-01

    heat recovery from refrigeration machines is a concept which has great potential for implementation in many businesses. If a parallel requirement for refrigeration and hot water exists, the installation of a system to provide hot water as a by...

  15. Rankine cycle waste heat recovery system

    DOE Patents [OSTI]

    Ernst, Timothy C.; Nelson, Christopher R.

    2015-09-22

    A waste heat recovery (WHR) system connects a working fluid to fluid passages formed in an engine block and/or a cylinder head of an internal combustion engine, forming an engine heat exchanger. The fluid passages are formed near high temperature areas of the engine, subjecting the working fluid to sufficient heat energy to vaporize the working fluid while the working fluid advantageously cools the engine block and/or cylinder head, improving fuel efficiency. The location of the engine heat exchanger downstream from an EGR boiler and upstream from an exhaust heat exchanger provides an optimal position of the engine heat exchanger with respect to the thermodynamic cycle of the WHR system, giving priority to cooling of EGR gas. The configuration of valves in the WHR system provides the ability to select a plurality of parallel flow paths for optimal operation.

  16. Rankine cycle waste heat recovery system

    DOE Patents [OSTI]

    Ernst, Timothy C.; Nelson, Christopher R.

    2014-08-12

    This disclosure relates to a waste heat recovery (WHR) system and to a system and method for regulation of a fluid inventory in a condenser and a receiver of a Rankine cycle WHR system. Such regulation includes the ability to regulate the pressure in a WHR system to control cavitation and energy conversion.

  17. Waste Heat Boilers for Incineration Applications 

    E-Print Network [OSTI]

    Ganapathy, V.

    1998-01-01

    . The steam thus generated may be saturated or superheated and could be used for process applications or for power generation via a steam turbine. This paper describes the major component of any incineration system, namely the waste heat boiler, and describes...

  18. Waste Heat Reduction and Recovery for Improving Furnace Efficiency...

    Broader source: Energy.gov (indexed) [DOE]

    Waste Heat Reduction and Recovery for Improving Furnace Efficiency, Productivity and Emissions Performance: A BestPractices Process Heating Technical Brief (November 2004) More...

  19. Use Feedwater Economizers for Waste Heat Recovery, Energy Tips...

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

    Use Feedwater Economizers for Waste Heat Recovery A feedwater economizer reduces steam boiler fuel requirements by transferring heat from the flue gas to incoming feedwater. Boiler...

  20. Modeling, Estimation, and Control of Waste Heat Recovery Systems

    E-Print Network [OSTI]

    Luong, David

    2013-01-01

    141 Open ORC Systemfor Open Organic Rankine Cycle (ORC)138 Evaporatorof an Organic Rankine Cycle (ORC) System for Waste Heat

  1. Develop Thermoelectric Technology for Automotive Waste Heat Recovery...

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

    More Documents & Publications Develop Thermoelectric Technology for Automotive Waste Heat Recovery Cost-Competitive Advanced Thermoelectric Generators for Direct...

  2. Modeling, Estimation, and Control of Waste Heat Recovery Systems

    E-Print Network [OSTI]

    Luong, David

    2013-01-01

    and water-ammonia mixtures are both zeotropic and are popular working fluid choices in waste heat recovery

  3. Energy Efficient Design of a Waste Heat Rejection System 

    E-Print Network [OSTI]

    Mehta, P.

    2000-01-01

    , and oil preheaters. The heating requirements for these heat sinks are generally met by burning fossil fuels or even by using electric heaters while available waste heat is rejected to the surrounding environment using devices such as cooling towers...

  4. Enhancing light-harvesting power with coherent vibrational interactions: a quantum heat engine picture

    E-Print Network [OSTI]

    Nathan Killoran; Susana F. Huelga; Martin B. Plenio

    2015-10-21

    Recent evidence suggests that quantum effects may have functional importance in biological light-harvesting systems. Along with delocalized electronic excitations, it is now suspected that quantum coherent interactions with certain near-resonant vibrations may contribute to light-harvesting performance. However, the actual quantum advantage offered by such coherent vibrational interactions has not yet been established. We investigate a quantum design principle, whereby coherent exchange of single energy quanta between electronic and vibrational degrees of freedom can enhance a light-harvesting system's power above what is possible by thermal mechanisms alone. We present a prototype quantum heat engine which cleanly illustrates this quantum design principle, and quantify its quantum advantage using thermodynamic measures of performance. We also demonstrate the principle's relevance in parameter regimes connected to natural light-harvesting structures.

  5. Use of photovoltaics for waste heat recovery

    DOE Patents [OSTI]

    Polcyn, Adam D

    2013-04-16

    A device for recovering waste heat in the form of radiated light, e.g. red visible light and/or infrared light includes a housing having a viewing window, and a photovoltaic cell mounted in the housing in a relationship to the viewing window, wherein rays of radiated light pass through the viewing window and impinge on surface of the photovoltaic cell. The housing and/or the cell are cooled so that the device can be used with a furnace for an industrial process, e.g. mounting the device with a view of the interior of the heating chamber of a glass making furnace. In this manner, the rays of the radiated light generated during the melting of glass batch materials in the heating chamber pass through the viewing window and impinge on the surface of the photovoltaic cells to generate electric current which is passed onto an electric load.

  6. Organic rankine cycle waste heat applications

    DOE Patents [OSTI]

    Brasz, Joost J.; Biederman, Bruce P.

    2007-02-13

    A machine designed as a centrifugal compressor is applied as an organic rankine cycle turbine by operating the machine in reverse. In order to accommodate the higher pressures when operating as a turbine, a suitable refrigerant is chosen such that the pressures and temperatures are maintained within established limits. Such an adaptation of existing, relatively inexpensive equipment to an application that may be otherwise uneconomical, allows for the convenient and economical use of energy that would be otherwise lost by waste heat to the atmosphere.

  7. Modeling, Estimation, and Control of Waste Heat Recovery Systems

    E-Print Network [OSTI]

    Luong, David

    2013-01-01

    State Estimation for Open Organic Rankine Cycle (ORC)138optimization of an organic Rankine cycle waste heat powerand Simulation of an Organic Rankine Cycle (ORC) System for

  8. Diesel Engine Waste Heat Recovery Utilizing Electric Trubocompound...

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

    Trubocompound Technology Diesel Engine Waste Heat Recovery Utilizing Electric Trubocompound Technology 2003 DEER Conference Presentation: Caterpillar Inc. 2003deeralgrain.pdf...

  9. An Engine System Approach to Exhaust Waste Heat Recovery | Department...

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

    Vehicle Technologies (OFCVT). deer07kruiswyk.pdf More Documents & Publications An Engine System Approach to Exhaust Waste Heat Recovery Engine System Approach to Exhaust Energy...

  10. Develop Thermoelectric Technology for Automotive Waste Heat Recovery...

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

    ace45yang.pdf More Documents & Publications Develop Thermoelectric Technology for Automotive Waste Heat Recovery Engineering and Materials for Automotive Thermoelectric...

  11. Develop Thermoelectric Technology for Automotive Waste Heat Recovery...

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

    Opportunities and Challenges of Thermoelectrlic Waste Heat Recovery in the Automotive Industry On Thermoelectric Properties of p-Type Skutterudites Development of...

  12. Thermoelectrici Conversion of Waste Heat to Electricity in an...

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

    Vehicle Thermoelectrici Conversion of Waste Heat to Electricity in an IC Engine-Powered Vehicle 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters...

  13. Development of Thermoelectric Technology for Automotive Waste Heat Recovery

    Broader source: Energy.gov [DOE]

    Overview and status of project to develop thermoelectric generator for automotive waste heat recovery and achieve at least 10% fuel economy improvement.

  14. Thermoelectric Conversion of Waste Heat to Electricity in an...

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

    using thermoelectrics on a OTR truck schock.pdf More Documents & Publications Thermoelectric Conversion of Waste Heat to Electricity in an IC Engine Powered Vehicle...

  15. Thermoelectric Conversion of Waste Heat to Electricity in an...

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

    Review and Peer Evaluation ace049schock2011o.pdf More Documents & Publications Thermoelectric Conversion of Waste Heat to Electricity in an IC Engine Powered Vehicle...

  16. Enhancing light-harvesting power with coherent vibrational interactions: a quantum heat engine picture

    E-Print Network [OSTI]

    Nathan Killoran; Susana F. Huelga; Martin B. Plenio

    2014-12-12

    Recent evidence suggests that quantum effects may have functional importance in biological light-harvesting systems. Along with delocalized electronic excitations, it is now suspected that quantum coherent interactions with certain near-resonant vibrations contribute to light-harvesting performance. However, the actual quantum advantage offered by such coherent vibrational interactions has not yet been established. We investigate a quantum design principle, whereby coherent exchange of single energy quanta between electronic and vibrational degrees of freedom can enhance a light-harvesting system's power above what is possible by thermal mechanisms alone. We present a prototype quantum heat engine which cleanly illustrates this quantum design principle, and quantify its quantum advantage using thermodynamic measures of performance. We also demonstrate the principle's applicability for realistic biological structures.

  17. Shape memory alloy heat engines and energy harvesting systems

    DOE Patents [OSTI]

    Browne, Alan L; Johnson, Nancy L; Keefe, Andrew C; Alexander, Paul W; Sarosi, Peter Maxwell; Herrera, Guillermo A; Yates, James Ryan

    2013-12-17

    A heat engine includes a first rotatable pulley and a second rotatable pulled spaced from the first rotatable pulley. A shape memory alloy (SMA) element is disposed about respective portions of the pulleys at an SMA pulley ratio. The SMA element includes first spring coil and a first fiber core within the first spring coil. A timing cable is disposed about disposed about respective portions of the pulleys at a timing pulley ratio, which is different than the SMA pulley ratio. The SMA element converts a thermal energy gradient between the hot region and the cold region into mechanical energy.

  18. Shape memory alloy heat engines and energy harvesting systems

    DOE Patents [OSTI]

    Browne, Alan L; Johnson, Nancy L; Shaw, John Andrew; Churchill, Christopher Burton; Keefe, Andrew C; McKnight, Geoffrey P; Alexander, Paul W; Herrera, Guillermo A; Yates, James Ryan; Brown, Jeffrey W

    2014-09-30

    A heat engine includes a first rotatable pulley and a second rotatable pulley spaced from the first rotatable pulley. A shape memory alloy (SMA) element is disposed about respective portions of the pulleys at an SMA pulley ratio. The SMA element includes a first wire, a second wire, and a matrix joining the first wire and the second wire. The first wire and the second wire are in contact with the pulleys, but the matrix is not in contact with the pulleys. A timing cable is disposed about respective portions of the pulleys at a timing pulley ratio, which is different than the SMA pulley ratio. The SMA element converts a thermal energy gradient between the hot region and the cold region into mechanical energy.

  19. Thermoelectric Generators for Automotive Waste Heat Recovery Systems Part II: Parametric Evaluation

    E-Print Network [OSTI]

    Xu, Xianfan

    Thermoelectric Generators for Automotive Waste Heat Recovery Systems Part II: Parametric Evaluation been proposed to model thermoelectric generators (TEGs) for automotive waste heat recovery. Details: Thermoelectric generators, waste heat recovery, automotive exhaust, skutterudites INTRODUCTION In part I

  20. Thermoelectric Generators for Automotive Waste Heat Recovery Systems Part I: Numerical Modeling

    E-Print Network [OSTI]

    Xu, Xianfan

    Thermoelectric Generators for Automotive Waste Heat Recovery Systems Part I: Numerical Modeling (TEG) designed for automotive waste heat recovery systems. This model is capable of computing telluride TEMs. Key words: Thermoelectric generators, waste heat recovery, automotive exhaust, skutterudites

  1. High-Efficiency Quantum-Well Thermoelectrics for Waste Heat Power...

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

    High-Efficiency Quantum-Well Thermoelectrics for Waste Heat Power Generation High-Efficiency Quantum-Well Thermoelectrics for Waste Heat Power Generation 2005 Diesel Engine...

  2. High-Temperature Components for Rankine-Cycle-Based Waste Heat...

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

    Components for Rankine-Cycle-Based Waste Heat Recovery Systems on Combustion Engines High-Temperature Components for Rankine-Cycle-Based Waste Heat Recovery Systems on Combustion...

  3. Waste Heat-to-Power in Small Scale Industry Using Scroll Expander...

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

    to recover waste heat that is exhausted in various manufacturing industries, including food processing. A large portion of unrecovered industrial waste heat is considered to be...

  4. Feasibility of Thermoelectrics for Waste Heat Recovery in Conventional Vehicles

    SciTech Connect (OSTI)

    Smith, K.; Thornton, M.

    2009-04-01

    Thermoelectric (TE) generators convert heat directly into electricity when a temperature gradient is applied across junctions of two dissimilar metals. The devices could increase the fuel economy of conventional vehicles by recapturing part of the waste heat from engine exhaust and generating electricity to power accessory loads. A simple vehicle and engine waste heat model showed that a Class 8 truck presents the least challenging requirements for TE system efficiency, mass, and cost; these trucks have a fairly high amount of exhaust waste heat, have low mass sensitivity, and travel many miles per year. These factors help maximize fuel savings and economic benefits. A driving/duty cycle analysis shows strong sensitivity of waste heat, and thus TE system electrical output, to vehicle speed and driving cycle. With a typical alternator, a TE system could allow electrification of 8%-15% of a Class 8 truck's accessories for 2%-3% fuel savings. More research should reduce system cost and improve economics.

  5. Power Generation From Waste Heat Using Organic Rankine Cycle Systems 

    E-Print Network [OSTI]

    Prasad, A.

    1980-01-01

    Many efforts are currently being pursued to develop and implement new energy technologies aimed at meeting our national energy goals The use of organic Rankine cycle engines to generate power from waste heat provides a near term means to greatly...

  6. Automotive Waste Heat Conversion to Electric Power using Skutterudites...

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

    Electric Power using Skutterudites, TAGS, PbTe and Bi2Te3 Automotive Waste Heat Conversion to Electric Power using Skutterudites, TAGS, PbTe and Bi2Te3 Presentation given at DEER...

  7. Thermoelectric Conversion of Waste Heat to Electricity in an...

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

    T estimated to be 500 oC deer09schock.pdf More Documents & Publications Thermoelectric Conversion of Waste Heat to Electricity in an IC Engine Powered Vehicle...

  8. Identification of existing waste heat recovery and process improvement technologies

    SciTech Connect (OSTI)

    Watts, R.L.; Dodge, R.E.; Smith, S.A.; Ames, K.R.

    1984-03-01

    General information is provided on waste heat recovery opportunities. The currently available equipment for high- and low-temperature applications are described. Other equipment related to wasteheat recovery equipment such as components, instruments and controls, and cleaning equipment is discussed briefly. A description of the microcomputer data base is included. Suppliers of waste heat equipment are mentioned throughout the report, with specific contacts, addresses, and telephone numbers provided in an Appendix.

  9. Multi-physics modeling of thermoelectric generators for waste heat recovery applications

    Broader source: Energy.gov [DOE]

    Model developed provides effective guidelines to designing thermoelectric generation systems for automotive waste heat recovery applications

  10. Economic Analysis of a Waste Water Resource Heat Pump Air-Conditioning System in North China 

    E-Print Network [OSTI]

    Chen, H.; Li, D.; Dai, X.

    2006-01-01

    This paper describes the situation of waste water resource in north China and the characteristics and styles of a waste water resource heat pump system, and analyzes the economic feasibility of a waste water resource heat pump air...

  11. Economic Analysis and Comparison of Waste Water Resource Heat Pump Heating and Air-Conditioning System 

    E-Print Network [OSTI]

    Zhang, C.; Wang, S.; Chen, H.; Shi, Y.

    2006-01-01

    Based on the heating and air-conditioning system of a high-rise residential building in Northern city, this paper provides a discussion on the choice and matching of different types of Waste Water Resource Heat Pump (WWRHP) heating and air...

  12. Waste Heat Recovery from Refrigeration in a Meat Processing Facility 

    E-Print Network [OSTI]

    Murphy, W. T.; Woods, B. E.; Gerdes, J. E.

    1980-01-01

    A case study is reviewed on a heat recovery system installed in a meat processing facility to preheat water for the plant hot water supply. The system utilizes waste superheat from the facility's 1,350-ton ammonia refrigeration system. The heat...

  13. Absorptive Recycle of Distillation Waste Heat 

    E-Print Network [OSTI]

    Erickson, D. C.; Lutz, E. J., Jr.

    1982-01-01

    condenser operates above ambient temperature, the rejected heat also contains unused availability. By incorporating an absorption heat pump (AHP) into the distillation process, these sources of unused availability can be tapped so as to recycle (and hence...

  14. Hanford waste treatment plant Immobilized High Level Waste (IHLW) canister radiation dose rate and radiolytic heat load analysis

    SciTech Connect (OSTI)

    PIERSON, R.M.

    2003-09-02

    This document provides an analysis of anticipated radiation dose rates and heat loads for immobilized high level waste (IHW) canisters

  15. Cold End Inserts for Process Gas Waste Heat Boilers Air Products, operates hydrogen production plants, which utilize large waste heat boilers (WHB)

    E-Print Network [OSTI]

    Demirel, Melik C.

    Cold End Inserts for Process Gas Waste Heat Boilers Overview Air Products, operates hydrogen production plants, which utilize large waste heat boilers (WHB) to cool process syngas. The gas enters satisfies all 3 design criteria. · Correlations relating our experimental results to a waste heat boiler

  16. Combined Heat and Power, Waste Heat, and District Energy

    Broader source: Energy.gov [DOE]

    Presentation—given at the Fall 2011 Federal Utility Partnership Working Group (FUPWG) meeting—covers combined heat and power (CHP) technologies and their applications.

  17. TRANSIENT HEAT TRANSFER MODEL FOR SRS WASTE TANK OPERATIONS

    SciTech Connect (OSTI)

    Lee, S; Richard Dimenna, R

    2007-03-27

    A transient heat balance model was developed to assess the impact of a Submersible Mixer Pump (SMP) on waste temperature during the process of waste mixing and removal for the Type-I Savannah River Site (SRS) tanks. The model results will be mainly used to determine the SMP design impacts on the waste tank temperature during operations and to develop a specification for a new SMP design to replace existing long-shaft mixer pumps used during waste removal. The model will also be used to provide input to the operation planning. This planning will be used as input to pump run duration in order to maintain temperature requirements within the tank during SMP operation. The analysis model took a parametric approach. A series of the modeling analyses was performed to examine how submersible mixer pumps affect tank temperature during waste removal operation in the Type-I tank. The model domain included radioactive decay heat load, two SMP's, and one Submersible Transfer Pump (STP) as heat source terms. The present model was benchmarked against the test data obtained by the tank measurement to examine the quantitative thermal response of the tank and to establish the reference conditions of the operating variables under no SMP operation. The results showed that the model predictions agreed with the test data of the waste temperatures within about 10%. Transient modeling calculations for two potential scenarios of sludge mixing and removal operations have been made to estimate transient waste temperatures within a Type-I waste tank. When two 200-HP submersible mixers and 12 active cooling coils are continuously operated in 100-in tank level and 40 C initial temperature for 40 days since the initiation of mixing operation, waste temperature rises about 9 C in 48 hours at a maximum. Sensitivity studies for the key operating variables were performed. The sensitivity results showed that the chromate cooling coil system provided the primary cooling mechanism to remove process heat from the tank during operation.

  18. Optimization of biological recycling of plant nutrients in livestock waste by utilizing waste heat from cooling water

    SciTech Connect (OSTI)

    Maddox, J.J.; Behrends, L.L.; Burch, D.W.; Kingsley, J.B.; Waddell, E.L. Jr.

    1982-05-01

    Results are presented from a 5-year study to develop aquatic methods which beneficially use condenser cooling water from electric generating power plants. A method is proposed which uses a system for aquatic farming. Livestock waste is used to fertilize planktonic algae production and filter-feeding fish are used to biologically harvest the algae, condenser cooling water (simulated) is used to add waste heat to the system, and emergent aquatic plants are used in a flow through series as a bio-filter to improve the water quality and produce an acceptable discharge. Two modes of operation were tested; one uses untreated swine manure as the source of aquatic fertilizer and the other uses anaerobic digester waste as a means of pretreating the manure to produce an organic fertilizer. A set of operating conditions (temperature, retention time, fish stocking rate, fertilizer rates, land and water requirements, suggested fish and plant species, and facility design) were developed from these results. The integrated system allows continual use of power plant condenser cooling water from plants in the southeastern United States.

  19. Water recovery using waste heat from coal fired power plants.

    SciTech Connect (OSTI)

    Webb, Stephen W.; Morrow, Charles W.; Altman, Susan Jeanne; Dwyer, Brian P.

    2011-01-01

    The potential to treat non-traditional water sources using power plant waste heat in conjunction with membrane distillation is assessed. Researchers and power plant designers continue to search for ways to use that waste heat from Rankine cycle power plants to recover water thereby reducing water net water consumption. Unfortunately, waste heat from a power plant is of poor quality. Membrane distillation (MD) systems may be a technology that can use the low temperature waste heat (<100 F) to treat water. By their nature, they operate at low temperature and usually low pressure. This study investigates the use of MD to recover water from typical power plants. It looks at recovery from three heat producing locations (boiler blow down, steam diverted from bleed streams, and the cooling water system) within a power plant, providing process sketches, heat and material balances and equipment sizing for recovery schemes using MD for each of these locations. It also provides insight into life cycle cost tradeoffs between power production and incremental capital costs.

  20. Alternatives Generation and Analysis for Heat Removal from High Level Waste Tanks

    SciTech Connect (OSTI)

    WILLIS, W.L.

    2000-06-15

    This document addresses the preferred combination of design and operational configurations to provide heat removal from high-level waste tanks during Phase 1 waste feed delivery to prevent the waste temperature from exceeding tank safety requirement limits. An interim decision for the preferred method to remove the heat from the high-level waste tanks during waste feed delivery operations is presented herein.

  1. Conserving Energy by Recovering Heat from Hot Waste Gases 

    E-Print Network [OSTI]

    Magnuson, E. E.

    1979-01-01

    ;::;,. """"= ;e - -e-- - ~ ------- ., ~ A~ PULL THRU - WITH SUPPLEMENTARY BURNER t t - ~"~ ~ - t77 7'0.. Fig. No. B ;i' ~ A+-, j + ~ ~s:- i.I A..-J PUSH THRU OR PULL THRU - W ITII SUPPI F'MF'NTARY ALJRNER years later a steel company discharging... BY RECOVERING HEAT FROM HOT WASTE GASES E. E. Magnuson Consultant and Training Director Eclipse Lookout Co. - Division of Eclipse, Inc. Chattanooga, Tennessee Intent of this paper is to show how recovery of heat in hot waste gases reduces nation...

  2. Fluidized-Bed Waste-Heat Recovery System Advances 

    E-Print Network [OSTI]

    Patch, K. D.; Cole, W. E.

    1986-01-01

    stream_source_info ESL-IE-86-06-09.pdf.txt stream_content_type text/plain stream_size 23561 Content-Encoding ISO-8859-1 stream_name ESL-IE-86-06-09.pdf.txt Content-Type text/plain; charset=ISO-8859-1 FLUIDIZED-BED WASTE-HEAT... RECOVERY SYSTEM ADVANCES Keith D. Patch William E. Cole Thermo Electron Corporation Waltham, Massachusetts ABSTRACT The Fluidized-Bed Waste-Heat Recovery (FBWHR) System is a combustion air preheater designed for existing unrecuperated...

  3. Scale Up of Si/Si0.8GE0.2 and B4C/B9C Superlattices for Harvesting...

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

    Scale Up of SiSi0.8GE0.2 and B4CB9C Superlattices for Harvesting of Waste Heat in Diesel Engines Scale Up of SiSi0.8GE0.2 and B4CB9C Superlattices for Harvesting of Waste Heat...

  4. Waste Heat Recovery Using a Circulating Heat Medium Loop 

    E-Print Network [OSTI]

    Manning, E., Jr.

    1981-01-01

    As energy costs continue to increase, one must be willing to accept greater complexities in heat recovery systems. The days of being satisfied with only simple hot product to cold feed exchange, restricted to the plot boundaries of each unit, are a...

  5. Waste Heat Recovery – Submerged Arc Furnaces (SAF) 

    E-Print Network [OSTI]

    O'Brien, T.

    2008-01-01

    designed consumes power and fuel that yields an energy efficiency of approximately 40% (Total Btu’s required to reduce to elemental form/ Btu Input). The vast majority of heat is lost to the atmosphere or cooling water system. The furnaces can be modified...

  6. Polysilicon Vertical Actuator Powered with Waste Heat

    E-Print Network [OSTI]

    Hamoui, Anas

    an electric current flow through the device structure and induce Joule heating. The corresponding increase require an external battery that is several times the size of the microsystem itself. It is the power that do not rely on a bulky battery with fairly limited energy storage capacity. Through the application

  7. Waste heat recovery in automobile engines : potential solutions and benefits

    E-Print Network [OSTI]

    Ruiz, Joaquin G., 1981-

    2005-01-01

    Less than 30% of the energy in a gallon of gasoline reaches the wheels of a typical car; most of the remaining energy is lost as heat. Since most of the energy consumed by an internal combustion engine is wasted, capturing ...

  8. Low Temperature Geothermal Waste-Heat-to-Power 

    E-Print Network [OSTI]

    Tidwell, Preston J

    2014-09-21

    , to be considered as a Low Temperature Geothermal (LTG) resource, meaning capable of electricity generation. This hot fluid combination of hydrocarbons and water can be run through an Organic Rankine Power Cycle (ORC) for effective Waste-Heat-to-Power generation...

  9. Waste Heat Management Options: Industrial Process Heating Systems

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics » USAJobs SearchAMERICA'S FUTURE. regulators02-03Heat Management Options

  10. Coupled Model for Heat and Water Transport in a High Level Waste...

    Energy Savers [EERE]

    Coupled Model for Heat and Water Transport in a High Level Waste Repository in Salt Coupled Model for Heat and Water Transport in a High Level Waste Repository in Salt This report...

  11. Waste Heat-to-Power in Small Scale Industry Using Scroll Expander...

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

    Waste Heat-to-Power in Small Scale Industry Using Scroll Expander for Organic Rankine Bottoming Cycle Waste Heat-to-Power in Small Scale Industry Using Scroll Expander for Organic...

  12. Development of a Waste Heat Recovery System for Light Duty Diesel...

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

    a Waste Heat Recovery System for Light Duty Diesel Engines Development of a Waste Heat Recovery System for Light Duty Diesel Engines Substantial increases in engine efficiency of a...

  13. Salt disposal of heat-generating nuclear waste.

    SciTech Connect (OSTI)

    Leigh, Christi D.; Hansen, Francis D.

    2011-01-01

    This report summarizes the state of salt repository science, reviews many of the technical issues pertaining to disposal of heat-generating nuclear waste in salt, and proposes several avenues for future science-based activities to further the technical basis for disposal in salt. There are extensive salt formations in the forty-eight contiguous states, and many of them may be worthy of consideration for nuclear waste disposal. The United States has extensive experience in salt repository sciences, including an operating facility for disposal of transuranic wastes. The scientific background for salt disposal including laboratory and field tests at ambient and elevated temperature, principles of salt behavior, potential for fracture damage and its mitigation, seal systems, chemical conditions, advanced modeling capabilities and near-future developments, performance assessment processes, and international collaboration are all discussed. The discussion of salt disposal issues is brought current, including a summary of recent international workshops dedicated to high-level waste disposal in salt. Lessons learned from Sandia National Laboratories' experience on the Waste Isolation Pilot Plant and the Yucca Mountain Project as well as related salt experience with the Strategic Petroleum Reserve are applied in this assessment. Disposal of heat-generating nuclear waste in a suitable salt formation is attractive because the material is essentially impermeable, self-sealing, and thermally conductive. Conditions are chemically beneficial, and a significant experience base exists in understanding this environment. Within the period of institutional control, overburden pressure will seal fractures and provide a repository setting that limits radionuclide movement. A salt repository could potentially achieve total containment, with no releases to the environment in undisturbed scenarios for as long as the region is geologically stable. Much of the experience gained from United States repository development, such as seal system design, coupled process simulation, and application of performance assessment methodology, helps define a clear strategy for a heat-generating nuclear waste repository in salt.

  14. Waste Heat Recovery Opportunities for Thermoelectric Generators |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics » USAJobs SearchAMERICA'S FUTURE. regulators02-03Heat Management

  15. Low and high Temperature Dual Thermoelectric Generation Waste Heat Recovery System for Light-Duty Vehicles

    Broader source: Energy.gov [DOE]

    Developing a low and high temperature dual thermoelectric generation waste heat recovery system for light-duty vehicles.

  16. How to Put the Dollar Value on Waste Heat Recovery in the Process Industry 

    E-Print Network [OSTI]

    Campagne, W. V. L.

    1982-01-01

    Waste heat recovery projects should be evaluated on their actual fuel savings and not on Btu recovery. By equating waste heat recovery with potential steam savings, the fuel (or dollar) values of the waste heat as function of its temperature can...

  17. Finding More Free Steam From Waste Heat 

    E-Print Network [OSTI]

    Stremlow, M. D.

    2014-01-01

    with solvent vapors etc. • Vent streams thermally treated by exposing them to high temps through natural gas burner. • High temp flue gas well suited for heat recovery, especially with amount of H2 in dry vents. 9 ESL-IE-14-05-01 Proceedings of the Thrity... opportunities • Better separation of vents that need to go to THROx from vents with other options available to approved on-site locations. • Due to particulate loading, burner system fouling issues required frequent cleaning. Consider alternate burner...

  18. Compact Ceramic Heat Exchangers for Corrosive Waste Gas Applications 

    E-Print Network [OSTI]

    Laws, W. R.; Reed, G. R.

    1982-01-01

    gas temperatures. It was noted that ~ degree of self-cleaning had occurred and L particularly all carbon deposits had OXidiSrd away. I 2. Aluminium I Silicon carbide and mullite tubes have been~ evaluated in the waste gas streams of natur 1 gas... fired aluminium reverberator:r furnaces. aving waste gas temperatures cycling from 800 to 1200 deg. C. The application of metallic : convective heat exchar~ers for this duty ha$ proved ur~uitable for ir~tallations partic~arly where the injection...

  19. Technologies and Materials for Recovering Waste Heat in Harsh Environments

    SciTech Connect (OSTI)

    Nimbalkar, Sachin U.; Thekdi, Arvind; Rogers, Benjamin M.; Kafka, Orion L.; Wenning, Thomas J.

    2014-12-15

    A large amount (7,204 TBtu/year) of energy is used for process heating by the manufacturing sector in the United States (US). This energy is in the form of fuels mostly natural gas with some coal or other fuels and steam generated using fuels such as natural gas, coal, by-product fuels, and some others. Combustion of these fuels results in the release of heat, which is used for process heating, and in the generation of combustion products that are discharged from the heating system. All major US industries use heating equipment such as furnaces, ovens, heaters, kilns, and dryers. The hot exhaust gases from this equipment, after providing the necessary process heat, are discharged into the atmosphere through stacks. This report deals with identification of industries and industrial heating processes in which the exhaust gases are at high temperature (>1200 F), contain all of the types of reactive constituents described, and can be considered as harsh or contaminated. It also identifies specific issues related to WHR for each of these processes or waste heat streams.

  20. Aalborg Universitet Implementation of Exhaust Gas Recirculation for Double Stage Waste Heat Recovery

    E-Print Network [OSTI]

    Berning, Torsten

    Heat Recovery System on Large Container Vessel. In Proceedings of the 55th International Conference Waste Heat Recovery System on Large Container Vessel Morten Andreasena, , Matthieu Marissala,b, , Kim Heat Recovery Systems (WHRS) on container ships consist of recovering some of the waste heat from

  1. Waste Heat Powered Ammonia Absorption Refrigeration Unit for LPG Recovery

    SciTech Connect (OSTI)

    Donald C, Energy Concepts Co.; Lauber, Eric, Western Refining Co.

    2008-06-20

    An emerging DOE-sponsored technology has been deployed. The technology recovers light ends from a catalytic reformer plant using waste heat powered ammonia absorption refrigeration. It is deployed at the 17,000 bpd Bloomfield, New Mexico refinery of Western Refining Company. The technology recovers approximately 50,000 barrels per year of liquefied petroleum gas that was formerly being flared. The elimination of the flare also reduces CO2 emissions by 17,000 tons per year, plus tons per year reductions in NOx, CO, and VOCs. The waste heat is supplied directly to the absorption unit from the Unifiner effluent. The added cooling of that stream relieves a bottleneck formerly present due to restricted availability of cooling water. The 350oF Unifiner effluent is cooled to 260oF. The catalytic reformer vent gas is directly chilled to minus 25oF, and the FCC column overhead reflux is chilled by 25oF glycol. Notwithstanding a substantial cost overrun and schedule slippage, this project can now be considered a success: it is both profitable and highly beneficial to the environment. The capabilities of directly-integrated waste-heat powered ammonia absorption refrigeration and their benefits to the refining industry have been demonstrated.

  2. New waste-heat refrigeration unit cuts flaring, reduces pollution

    SciTech Connect (OSTI)

    Brant, B.; Brueske, S.; Erickson, D.; Papar, R.

    1998-05-18

    Planetec Utility Services Co. Inc. and Energy Concepts Co. (ECC), with the help of the US Department of Energy (DOE), developed and commissioned a unique waste-heat powered LPG recovery plant in August 1997 at the 30,000 b/d Denver refinery, operated by Ultramar Diamond Shamrock (UDS). This new environmentally friendly technology reduces flare emissions and the loss of salable liquid-petroleum products to the fuel-gas system. The waste heat ammonia absorption refrigeration plant (Whaarp) is the first technology of its kind to use low-temperature waste heat (295 F) to achieve sub-zero refrigeration temperatures ({minus}40 F) with the capability of dual temperature loads in a refinery setting. The ammonia absorption refrigeration is applied to the refinery`s fuel-gas makeup streams to condense over 180 b/d of salable liquid hydrocarbon products. The recovered liquid, about 64,000 bbl/year of LPG and gasoline, increases annual refinery profits by nearly $1 million, while substantially reducing air pollution emissions from the refinery`s flare.

  3. Indirect Heat Transfer Technology For Waste Heat Recovery Can Save You Money 

    E-Print Network [OSTI]

    Beyrau, J. A.; Bogel, N. G.; Seifert, W. F.; Wuelpern, L. E.

    1984-01-01

    Il'IflImiUIf ~L t::::..;~~= N2---b!<)-L-, FSL Flow Mitch 10 HS Hone! lW~ch PI Pr_UJ1I indlc.uw Pi Preaurw trarwntaer 30 ~s " ""c:: 26 U d 20 n Flue-gas bypass ductwork, damper (" ...... and bypass control valve g~ 16 \\ o~ \\ ~~ 10... ? ? I ? I I I : I - - 1 Heat?transfer l fluid ... INDIRECT HEAT TRANSFER TECHNOLOGY FOR WASTE HEAT RECOVERY CAN SAVE YOU MONEY John A. Beyrau, Gallie N. Bogel, Walter F. Seifert, Louis E. Wuelpern The Dow Chemical Company Midland, Michigan...

  4. Genome-Based Models to Optimize In Situ Bioremediation of Uranium and Harvesting Electrical Energy from Waste Organic Matter

    SciTech Connect (OSTI)

    Lovley, Derek R

    2012-12-28

    The goal of this research was to provide computational tools to predictively model the behavior of two microbial communities of direct relevance to Department of Energy interests: 1) the microbial community responsible for in situ bioremediation of uranium in contaminated subsurface environments; and 2) the microbial community capable of harvesting electricity from waste organic matter and renewable biomass. During this project the concept of microbial electrosynthesis, a novel form of artificial photosynthesis for the direct production of fuels and other organic commodities from carbon dioxide and water was also developed and research was expanded into this area as well.

  5. A Waste Heat Recovery System for Light Duty Diesel Engines

    SciTech Connect (OSTI)

    Briggs, Thomas E; Wagner, Robert M; Edwards, Kevin Dean; Curran, Scott; Nafziger, Eric J

    2010-01-01

    In order to achieve proposed fuel economy requirements, engines must make better use of the available fuel energy. Regardless of how efficient the engine is, there will still be a significant fraction of the fuel energy that is rejected in the exhaust and coolant streams. One viable technology for recovering this waste heat is an Organic Rankine Cycle. This cycle heats a working fluid using these heat streams and expands the fluid through a turbine to produce shaft power. The present work was the development of such a system applied to a light duty diesel engine. This lab demonstration was designed to maximize the peak brake thermal efficiency of the engine, and the combined system achieved an efficiency of 44.4%. The design of the system is discussed, as are the experimental performance results. The system potential at typical operating conditions was evaluated to determine the practicality of installing such a system in a vehicle.

  6. ACTIVATION, DECAY HEAT, AND WASTE DISPOSAL ANALYSES FOR THE ARIES-AT POWER PLANT

    E-Print Network [OSTI]

    California at San Diego, University of

    throughout the device and to compute the Fetter and NRC 10CFR 61 waste disposal ratings (WDR) for variousACTIVATION, DECAY HEAT, AND WASTE DISPOSAL ANALYSES FOR THE ARIES-AT POWER PLANT D. Henderson, L, decay heat and waste disposal calculations of the ARIES-AT design are performed to evaluate the safety

  7. Harvests, St. Tracy Lekanof, Island Sentinel, Kayumixtax Eco-office

    E-Print Network [OSTI]

    .................................................................................................................... 4 By-products and Waste .............................................................................................................................. 5 Oil Contamination seals harvested b) incidence of by-products and waste during the harvest process c) the occurrence

  8. Waste Heat Recovery by Organic Fluid Rankine Cycle 

    E-Print Network [OSTI]

    Verneau, A.

    1979-01-01

    RECOVERY BY ORGANIC FLUID RANKINE CYCLE Alain VERNEAU Civil Mining Engineer Licenciate of the E.N.S.P.M. Societe BERTIN & Cie Versailles, France SUMMARY The use of Organic Rankin~Cycle for waste heat recovery presents several characteristics which... Energy Technology Conference Houston, TX, April 22-25, 1979 Ternperoturll I Tn-i- 1 Water and alcohol mi)(f:url2S SIEntropy) RII FBS 5 max --- R 113 R 114 ~gene:rator ~ s T llemptrature) T~ralurt T Liquid. vapor liquid ! Ji /li 2oo?C I...

  9. An analysis of a reversed absorption heat pump for low temperature waste heat utilization 

    E-Print Network [OSTI]

    Wade, Glenn William

    1979-01-01

    E. Jenkins A simu'lation program based on a First Law analysis was developed to provide the analysis of a reversed ammonia-water absorption heat pump for various operating temperature requi re- ments. The program was used to determine... 22 33 35 14 t k - t t h t diagram for an output tempera- sink waste heat ture = 210 F 37 15 output temperature = 210'F 39 16 Concentration - enthalpy path of aqueous phase in example problem 45 17 Pressure - enthalpy path of ammonia...

  10. Effects of system-bath entanglement on the performance of light-harvesting systems: A quantum heat engine perspective

    E-Print Network [OSTI]

    Dazhi Xu; Chen Wang; Yang Zhao; Jianshu Cao

    2015-08-19

    We explore energy transfer in a generic three-level system, which is coupled to three non-equilibrium baths. Built on the concept of quantum heat engine, our three-level model describes non-equilibrium quantum processes including light-harvesting energy transfer, nano-scale heat transfer, photo-induced isomerization, and photovoltaics in double quantum-dots. In the context of light-harvesting, the excitation energy is first pumped up by sunlight, then is transferred via two excited states which are coupled to a phonon bath, and finally decays to the ground state. The efficiency of this process is evaluated by steady state analysis via a polaron-transformed master equation; thus a wide range of the system-phonon coupling strength can be covered. We show that the coupling with the phonon bath not only modifies the steady state, resulting in population inversion, but also introduces a finite steady state coherence which optimizes the energy transfer flux and efficiency. In the strong coupling limit, the steady state coherence disappears and the efficiency approaches the heat engine limit given by Scovil and Schultz-Dubois in Phys. Rew. Lett. 2, 262 (1959).

  11. Low-temperature waste-heat recovery in the food and paper industries

    SciTech Connect (OSTI)

    Foell, W.K.; Lund, D.; Mitchell, J.W.; Ray, D.; Stevenson, R.; TenWolde, A.

    1980-11-01

    The potential of low-temperature waste-heat recovery technology is examined. An examination of barriers to impede waste-heat recovery is made and research programs are identified. Extensive information and data are presented in the following chapters: Waste Heat Recovery in the Wisconsin Food Industry; Waste Heat Recovery in the Wisconsin Pulp and Paper Industry; Industries' Economic Analysis of Energy Conservation Projects; Industrial Waste Heat Recovery (selection of heat-recovery heat exchangers for industrial applications, simplified procedure for selection of heat recovery heat exchangers for industrial applications, selection of heat pumps for industrial applications); Institutional Aspects of Industrial Energy Conservation (economic motivation for energy conservation and the industrial response, intrafirm idea channels and their sources, evaluation and approval of plant improvement projects, reported barriers to adopting waste heat recovery projects and recommendations for government involvement, and the final chapter is a summary with major conclusions given. Additional information is given in two appendices on the potential waste heat recovery in a cheese plant (calculation) and conditions for optimum exchanger size and break-even fuel cost. (MCW)

  12. Modeling water seepage into heated waste emplacement drifts at Yucca Mountain

    E-Print Network [OSTI]

    Birkholzer, Jens; Mukhopadhyay, Sumitra; Tsang, Yvonne

    2003-01-01

    into drifts at Yucca Mountain, Journal of ContaminantEMPLACEMENT DRIFTS AT YUCCA MOUNTAIN Jens Birkholzer, Sumitfor nuclear waste at Yucca Mountain, Nevada. Heating of rock

  13. Thermoelectrics: From Space Power Systems to Terrestrial Waste Heat Recovery Applications

    Broader source: Energy.gov [DOE]

    Progress in reliable high temperature segmented thermoelectric devices and potential for producing electricity from waste heat from energy intensive industrial processes and transportation vehicles exhaust are discussed

  14. Advanced Thermoelectric Materials and Generator Technology for Automotive Waste Heat at GM

    Office of Energy Efficiency and Renewable Energy (EERE)

    Overview of design, fabrication, integration, and test of working prototype TEG for engine waste heat recovery on Suburban test vehicle, and continuing investigation of skutterudite materials systems

  15. Waste Heat-to-Power in Small Scale Industry Using Scroll Expander...

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

    Heat-to-Power in Small Scale Industry Using Scroll Expander for Organic Rankine Bottoming Cycle Waste Heat-to-Power in Small Scale Industry Using Scroll Expander for Organic...

  16. Process Waste Heat Recovery in the Food Industry - A System Analysis 

    E-Print Network [OSTI]

    Lundberg, W. L.; Mutone, G. A.

    1983-01-01

    An analysis of an industrial waste heat recovery system concept is discussed. For example purposes, a food processing plant operating an ammonia refrigeration system for storage and blast freezing is considered. Heat is withdrawn from...

  17. Effects of system-bath entanglement on the performance of light-harvesting systems: A quantum heat engine perspective

    E-Print Network [OSTI]

    Xu, Dazhi; Zhao, Yang; Cao, Jianshu

    2015-01-01

    We explore energy transfer in a generic three-level system, which is coupled to three non-equilibrium baths. Built on the concept of quantum heat engine, our three-level model describes non-equilibrium quantum processes including light-harvesting energy transfer, nano-scale heat transfer, photo-induced isomerization, and photovoltaics in double quantum-dots. In the context of light-harvesting, the excitation energy is first pumped up by sunlight, then is transferred via two excited states which are coupled to a phonon bath, and finally decays to the ground state. The efficiency of this process is evaluated by steady state analysis via a polaron-transformed master equation; thus a wide range of the system-phonon coupling strength can be covered. We show that the coupling with the phonon bath not only modifies the steady state, resulting in population inversion, but also introduces a finite steady state coherence which optimizes the energy transfer flux and efficiency. In the strong coupling limit, the steady s...

  18. Waste Heat Doesn't Have to be a Waste of Money- The American & Efird Heat Recovery Project: A First for the Textile Industry 

    E-Print Network [OSTI]

    Smith, S. W.

    1991-01-01

    'T HAVE TO BE A WASTE OF MONEY" THE AMERICAN & EFIRD HEAT RECOVERY PROJECT: A FIRST FOR THE TEXTILE INDUSTRY STEVE W. SMITH, P.E., Program Manager Electrotechnology Sales Duke Power Company Charlotte, NC In 1989 American & Efird, Inc., decided... to upgrade their heat recovery system at its Dyeing & Finishing Plant in Mt. Holly, North Carolina. They chose an electric industrial process heat pump to enhance heat recovery and to lower operating costs. This application of the industrial process...

  19. Assessment of Feasibility of the Beneficial Use of Waste Heat from the Advanced Test Reactor

    SciTech Connect (OSTI)

    Donna P. Guillen

    2012-07-01

    This report investigates the feasibility of using waste heat from the Advanced Test Reactor (ATR). A proposed glycol waste heat recovery system was assessed for technical and economic feasibility. The system under consideration would use waste heat from the ATR secondary coolant system to preheat air for space heating of TRA-670. A tertiary coolant stream would be extracted from the secondary coolant system loop and pumped to a new plate and frame heat exchanger, where heat would be transferred to a glycol loop for preheating outdoor air in the heating and ventilation system. Historical data from Advanced Test Reactor operations over the past 10 years indicates that heat from the reactor coolant was available (when needed for heating) for 43.5% of the year on average. Potential energy cost savings by using the waste heat to preheat intake air is $242K/yr. Technical, safety, and logistics considerations of the glycol waste heat recovery system are outlined. Other opportunities for using waste heat and reducing water usage at ATR are considered.

  20. Using Waste Heat for External Processes (English/Chinese) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

    Chinese translation of the Using Waste Heat for External Processes fact sheet. Provides suggestions on how to use waste heat in industrial applications. The temperature of exhaust gases from fuel-fired industrial processes depends mainly on the process temperature and the waste heat recovery method. Figure 1 shows the heat lost in exhaust gases at various exhaust gas temperatures and percentages of excess air. Energy from gases exhausted from higher temperature processes (primary processes) can be recovered and used for lower temperature processes (secondary processes). One example is to generate steam using waste heat boilers for the fluid heaters used in petroleum crude processing. In addition, many companies install heat exchangers on the exhaust stacks of furnaces and ovens to produce hot water or to generate hot air for space heating.

  1. Bypass valve and coolant flow controls for optimum temperatures in waste heat recovery systems

    DOE Patents [OSTI]

    Meisner, Gregory P

    2013-10-08

    Implementing an optimized waste heat recovery system includes calculating a temperature and a rate of change in temperature of a heat exchanger of a waste heat recovery system, and predicting a temperature and a rate of change in temperature of a material flowing through a channel of the waste heat recovery system. Upon determining the rate of change in the temperature of the material is predicted to be higher than the rate of change in the temperature of the heat exchanger, the optimized waste heat recovery system calculates a valve position and timing for the channel that is configurable for achieving a rate of material flow that is determined to produce and maintain a defined threshold temperature of the heat exchanger, and actuates the valve according to the calculated valve position and calculated timing.

  2. Modeling, Estimation, and Control of Waste Heat Recovery Systems

    E-Print Network [OSTI]

    Luong, David

    2013-01-01

    regulates heat exchanger pressures and ex- pander powerwhile regulating heat exchanger pressures. The pressure andworking fluid pressure in EGR heat exchanger Pegrin, in MPa

  3. White Paper for U.S. Army Rapid Equipping Force: Waste Heat Recovery with Thermoelectric and Lithium-Ion Hybrid Power System

    SciTech Connect (OSTI)

    Farmer, J C

    2007-11-26

    By harvesting waste heat from engine exhaust and storing it in light-weight high-capacity modules, it is believed that the need for energy transport by convoys can be lowered significantly. By storing this power during operation, substantial electrical power can be provided during long periods of silent operation, while the engines are not operating. It is proposed to investigate the potential of installing efficient thermoelectric generators on the exhaust systems of trucks and other vehicles to generate electrical power from the waste heat contained in the exhaust and to store that power in advanced power packs comprised of polymer-gel lithium ion batteries. Efficient inexpensive methods for production of the thermoelectric generator are also proposed. The technology that exists at LLNL, as well as that which exists at industrial partners, all have high technology readiness level (TRL). Work is needed for integration and deployment.

  4. "Potential for Combined Heat and Power and District Heating and Cooling from Waste-to-Energy Facilities in the U.S. Learning from the Danish Experience"

    E-Print Network [OSTI]

    Columbia University

    "Potential for Combined Heat and Power and District Heating and Cooling from Waste- to supplies 60% of the heated floor, and 75% of the heat generation is generated in Combined Heat and Power: cogeneration of heat and power at the power plant is achieved with a higher thermal efficiency, hot water

  5. Improving the Control Performance of an Organic Rankine Cycle System for Waste Heat Recovery from a Heavy-Duty

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Improving the Control Performance of an Organic Rankine Cycle System for Waste Heat Recovery from waste heat from a heavy- duty diesel engine. For this system, a hierarchical and modular control) for recovering waste heat from a heavy-duty diesel engine. For this system, a hierarchical and modular control

  6. Install Waste Heat Recovery Systems for Fuel-Fired Furnaces (English/Chinese) (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2011-10-01

    Chinese translation of ITP fact sheet about installing Waste Heat Recovery Systems for Fuel-Fired Furnaces. For most fuel-fired heating equipment, a large amount of the heat supplied is wasted as exhaust or flue gases. In furnaces, air and fuel are mixed and burned to generate heat, some of which is transferred to the heating device and its load. When the heat transfer reaches its practical limit, the spent combustion gases are removed from the furnace via a flue or stack. At this point, these gases still hold considerable thermal energy. In many systems, this is the greatest single heat loss. The energy efficiency can often be increased by using waste heat gas recovery systems to capture and use some of the energy in the flue gas. For natural gas-based systems, the amount of heat contained in the flue gases as a percentage of the heat input in a heating system can be estimated by using Figure 1. Exhaust gas loss or waste heat depends on flue gas temperature and its mass flow, or in practical terms, excess air resulting from combustion air supply and air leakage into the furnace. The excess air can be estimated by measuring oxygen percentage in the flue gases.

  7. Industrial Waste Heat Recovery - Potential Applications, Available Technologies and Crosscutting R&D Opportunities

    SciTech Connect (OSTI)

    Thekdi, Arvind; Nimbalkar, Sachin U.

    2015-01-01

    The purpose of this report was to explore key areas and characteristics of industrial waste heat and its generation, barriers to waste heat recovery and use, and potential research and development (R&D) opportunities. The report also provides an overview of technologies and systems currently available for waste heat recovery and discusses the issues or barriers for each. Also included is information on emerging technologies under development or at various stages of demonstrations, and R&D opportunities cross-walked by various temperature ranges, technology areas, and energy-intensive process industries.

  8. Hybrid Solar Lighting Provides Energy Savings and Reduces Waste Heat

    SciTech Connect (OSTI)

    Lapsa, Melissa Voss; Maxey, L Curt; Earl, Dennis Duncan; Beshears, David L; Ward, Christina D; Parks, James Edgar

    2006-01-01

    ABSTRACT Artificial lighting is the largest component of electricity use in commercial U.S. buildings. Hybrid solar lighting (HSL) provides an exciting new means of reducing energy consumption while also delivering significant ancillary benefits associated with natural lighting in buildings. As more than half of all federal facilities are in the Sunbelt region (defined as having an average direct solar radiation of greater than 4 kWh/m2/day) and as more than half of all square footage available in federal buildings is also in the Sunbelt, HSL is an excellent technology fit for federal facilities. The HSL technology uses a rooftop, 4-ft-wide dish and secondary mirror that track the sun throughout the day (Fig. 1). The collector system focuses the sunlight onto 127 optical fibers. The fibers serve as flexible light pipes and are connected to hybrid light fixtures that have special diffusion rods that spread out the light in all directions. One collector powers about eight hybrid light fixtures-which can illuminate about 1,000 square feet. The system tracks at 0.1 accuracy, required by the two-mirror geometry to keep the focused beam on the fiber bundle. When sunlight is plentiful, the optical fibers in the luminaires provide all or most of the light needed in an area. During times of little or no sunlight, a sensor controls the intensity of the artificial lamps to maintain a desired illumination level. Unlike conventional electric lamps, the natural light produces little to no waste heat and is cool to the touch. This is because the system's solar collector removes the infrared light-the part of the spectrum that generates a lot of the heat in conventional bulbs-from the sunlight.

  9. Experimental and Analytical Studies on Pyroelectric Waste Heat Energy Conversion

    E-Print Network [OSTI]

    Lee, Felix

    2012-01-01

    ect of working ?uids on organic Rankine cycle for waste heatof such devices. Organic Rankine cycles and Stirling engines

  10. Waste Heat Reduction and Recovery for Improving Furnace Efficiency...

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

    gas heat losses can be calculated by the equation: Furnace exhaust heat losses W * Cp * (T exhaust - T ambient) Where: * W Mass of the exhaust gases * Cp Specific heat of...

  11. Dual Loop Parallel/Series Waste Heat Recovery System

    Broader source: Energy.gov [DOE]

    This system captures all the jacket water, intercooler, and exhaust heat from the engine by utilizing a single condenser to reject leftover heat to the atmosphere.

  12. Fluid Bed Waste Heat Boiler Operating Experience in Dirty Gas Streams 

    E-Print Network [OSTI]

    Kreeger, A. H.

    1986-01-01

    BOILER OPERATING EXPERIENCE IN DIRTY GAS STREAMS Alan H. Kreeger. Aerojet Energy Conversion Company. Sacramento. California ABSTRACT The first industrial fluid bed waste heat boiler in the U. S. is operating on an aluminium melting furnace...

  13. An Evaluation of Shadow Shielding for Lunar System Waste Heat Rejection 

    E-Print Network [OSTI]

    Worn, Cheyn

    2012-07-16

    Shadow shielding is a novel and practical concept for waste heat rejection from lunar surface spacecraft systems. A shadow shield is a light shield that shades the radiator from parasitic thermal radiation emanating from the sun or lunar surface...

  14. Use Feedwater Economizers for Waste Heat Recovery - Steam Tip Sheet #3

    SciTech Connect (OSTI)

    2012-01-31

    This revised AMO tip sheet on feedwater economizers for waste heat recovery provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  15. Waste Heat-to-Power Using Scroll Expander for Organic Rankine...

    Broader source: Energy.gov (indexed) [DOE]

    Manufacturing Office Peer Review Meeting Washington, D.C. May 28-29, 2015 Waste Heat-to-Power Using Scroll Expander for Organic Rankine Bottoming Cycle DE-EE0005767 TIAX LLC and...

  16. High-Performance Thermoelectric Devices Based on Abundant Silicide Materials for Vehicle Waste Heat Recovery

    Office of Energy Efficiency and Renewable Energy (EERE)

    Development of high-performance thermoelectric devices for vehicle waste heat recovery will include fundamental research to use abundant promising low-cost thermoelectric materials, thermal management and interfaces design, and metrology

  17. Water distillation using waste engine heat from an internal combustion engine

    E-Print Network [OSTI]

    Mears, Kevin S

    2006-01-01

    To meet the needs of forward deployed soldiers and disaster relief personnel, a mobile water distillation system was designed and tested. This system uses waste engine heat from the exhaust flow of an internal combustion ...

  18. Evaluation of Industrial Energy Options for Cogeneration, Waste Heat Recovery and Alternative Fuel Utilization 

    E-Print Network [OSTI]

    Hencey, S.; Hinkle, B.; Limaye, D. R.

    1980-01-01

    This paper describes the energy options available to Missouri industrial firms in the areas of cogeneration, waste heat recovery, and coal and alternative fuel utilization. The project, being performed by Synergic Resources Corporation...

  19. Life Cycle cost Analysis of Waste Heat Operated Absorption Cooling Systems for Building HVAC Applications 

    E-Print Network [OSTI]

    Saravanan, R.; Murugavel, V.

    2010-01-01

    In this paper, life cycle cost analysis (LCCA) of waste heat operated vapour absorption air conditioning system (VARS) incorporated in a building cogeneration system is presented and discussed. The life cycle cost analysis (LCCA) based on present...

  20. Vehicle Technologies Office Merit Review 2014: Thermoelectric Waste Heat Recovery Program for Passenger Vehicles

    Broader source: Energy.gov [DOE]

    Presentation given by GenTherm at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about thermoelectric waste heat recovery...

  1. 2011 Fur Seal Subsistence Harvest Report The Subsistence Harvest of Northern Fur Seals

    E-Print Network [OSTI]

    .................................................................................................................... 6 By-products and Waste seals harvested b) incidence of by-products and waste during the harvest process c) the occurrence debris and the number of seals disentangled g) evidence of oil contaminated seal pelts h) other types

  2. Waste Heat Recovery from High Temperature Off-Gases from Electric Arc Furnace

    SciTech Connect (OSTI)

    Nimbalkar, Sachin U [ORNL; Thekdi, Arvind [E3M Inc; Keiser, James R [ORNL; Storey, John Morse [ORNL

    2014-01-01

    This article presents a study and review of available waste heat in high temperature Electric Arc Furnace (EAF) off gases and heat recovery techniques/methods from these gases. It gives details of the quality and quantity of the sensible and chemical waste heat in typical EAF off gases, energy savings potential by recovering part of this heat, a comprehensive review of currently used waste heat recovery methods and potential for use of advanced designs to achieve a much higher level of heat recovery including scrap preheating, steam production and electric power generation. Based on our preliminary analysis, currently, for all electric arc furnaces used in the US steel industry, the energy savings potential is equivalent to approximately 31 trillion Btu per year or 32.7 peta Joules per year (approximately $182 million US dollars/year). This article describes the EAF off-gas enthalpy model developed at Oak Ridge National Laboratory (ORNL) to calculate available and recoverable heat energy for a given stream of exhaust gases coming out of one or multiple EAF furnaces. This Excel based model calculates sensible and chemical enthalpy of the EAF off-gases during tap to tap time accounting for variation in quantity and quality of off gases. The model can be used to estimate energy saved through scrap preheating and other possible uses such as steam generation and electric power generation using off gas waste heat. This article includes a review of the historical development of existing waste heat recovery methods, their operations, and advantages/limitations of these methods. This paper also describes a program to develop and test advanced concepts for scrap preheating, steam production and electricity generation through use of waste heat recovery from the chemical and sensible heat contained in the EAF off gases with addition of minimum amount of dilution or cooling air upstream of pollution control equipment such as bag houses.

  3. The Organic Rankine Cycle System, Its Application to Extract Energy From Low Temperature Waste Heat 

    E-Print Network [OSTI]

    Sawyer, R. H.; Ichikawa, S.

    1980-01-01

    The conservation of energy by its recovery from low temperature waste heat is of increasing importance in today's world energy crisis. The Organic Rankine Cycle is a cost efficient and proven method of converting low temperature (200-400o F) waste...

  4. A JOULE-HEATED MELTER TECHNOLOGY FOR THE TREATMENT AND IMMOBILIZATION OF LOW-ACTIVITY WASTE

    SciTech Connect (OSTI)

    KELLY SE

    2011-04-07

    This report is one of four reports written to provide background information regarding immobilization technologies remaining under consideration for supplemental immobilization of Hanford's low-activity waste. This paper provides the reader a general understanding of joule-heated ceramic lined melters and their application to Hanford's low-activity waste.

  5. Development of a Waste Heat Recovery System for Light Duty Diesel Engines

    Broader source: Energy.gov [DOE]

    Substantial increases in engine efficiency of a light-duty diesel engine, which require utilization of the waste energy found in the coolant, EGR, and exhaust streams, may be increased through the development of a Rankine cycle waste heat recovery system

  6. Advanced Thermoelectric Materials for Efficient Waste Heat Recovery in Process Industries

    SciTech Connect (OSTI)

    Adam Polcyn; Moe Khaleel

    2009-01-06

    The overall objective of the project was to integrate advanced thermoelectric materials into a power generation device that could convert waste heat from an industrial process to electricity with an efficiency approaching 20%. Advanced thermoelectric materials were developed with figure-of-merit ZT of 1.5 at 275 degrees C. These materials were not successfully integrated into a power generation device. However, waste heat recovery was demonstrated from an industrial process (the combustion exhaust gas stream of an oxyfuel-fired flat glass melting furnace) using a commercially available (5% efficiency) thermoelectric generator coupled to a heat pipe. It was concluded that significant improvements both in thermoelectric material figure-of-merit and in cost-effective methods for capturing heat would be required to make thermoelectric waste heat recovery viable for widespread industrial application.

  7. Evaluation of Waste Heat Recovery and Utilization from Residential Appliances and Fixtures

    SciTech Connect (OSTI)

    Tomlinson, John J; Christian, Jeff; Gehl, Anthony C

    2012-09-01

    Executive Summary In every home irrespective of its size, location, age, or efficiency, heat in the form of drainwater or dryer exhaust is wasted. Although from a waste stream, this energy has the potential for being captured, possibly stored, and then reused for preheating hot water or air thereby saving operating costs to the homeowner. In applications such as a shower and possibly a dryer, waste heat is produced at the same time as energy is used, so that a heat exchanger to capture the waste energy and return it to the supply is all that is needed. In other applications such as capturing the energy in drainwater from a tub, dishwasher, or washing machine, the availability of waste heat might not coincide with an immediate use for energy, and consequently a heat exchanger system with heat storage capacity (i.e. a regenerator) would be necessary. This study describes a two-house experimental evaluation of a system designed to capture waste heat from the shower, dishwasher clothes washer and dryer, and to use this waste heat to offset some of the hot water energy needs of the house. Although each house was unoccupied, they were fitted with equipment that would completely simulate the heat loads and behavior of human occupants including operating the appliances and fixtures on a demand schedule identical to Building American protocol (Hendron, 2009). The heat recovery system combined (1) a gravity-film heat exchanger (GFX) installed in a vertical section of drainline, (2) a heat exchanger for capturing dryer exhaust heat, (3) a preheat tank for storing the captured heat, and (4) a small recirculation pump and controls, so that the system could be operated anytime that waste heat from the shower, dishwasher, clothes washer and dryer, and in any combination was produced. The study found capturing energy from the dishwasher and clothes washer to be a challenge since those two appliances dump waste water over a short time interval. Controls based on the status of the dump valve on these two appliances would have eliminated uncertainty in knowing when waste water was flowing and the recovery system operated. The study also suggested that capture of dryer exhaust heat to heat incoming air to the dryer should be examined as an alternative to using drying exhaust energy for water heating. The study found that over a 6-week test period, the system in each house was able to recover on average approximately 3000 W-h of waste heat daily from these appliance and showers with slightly less on simulated weekdays and slightly more on simulated weekends which were heavy wash/dry days. Most of these energy savings were due to the shower/GFX operation, and the least savings were for the dishwasher/GFX operation. Overall, the value of the 3000 W-h of displaced energy would have been $0.27/day based on an electricity price of $.09/kWh. Although small for today s convention house, these savings are significant for a home designed to approach maximum affordable efficiency where daily operating costs for the whole house are less than a dollar per day. In 2010 the actual measured cost of energy in one of the simulated occupancy houses which waste heat recovery testing was undertaken was $0.77/day.

  8. The Subsistence Harvest of Northern Fur Seals St. George Island in 2010

    E-Print Network [OSTI]

    .................................................................................................................... 6 By-products and Waste .............................................................................................................................. 7 Oil Contamination seals harvested, b) incidence of by-products and waste during the harvest process, c) the occurrence

  9. The Subsistence Harvest of Northern Fur Seals St. George Island in 2009

    E-Print Network [OSTI]

    .................................................................................................................... 5 By-products and Waste .............................................................................................................................. 6 Oil Contamination seals harvested, b) incidence of by-products and waste during the harvest process, c) the occurrence

  10. Parametric Analyses of Heat Removal from High Level Waste Tanks

    SciTech Connect (OSTI)

    TRUITT, J.B.

    2000-06-05

    The general thermal hydraulics program GOTH-SNF was used to predict the thermal response of the waste in tanks 241-AY-102 and 241-AZ-102 when mixed by two 300 horsepower mixer pumps. This mixing was defined in terms of a specific waste retrieval scenario. Both dome and annulus ventilation system flow are necessary to maintain the waste within temperature control limits during the mixing operation and later during the sludge-settling portion of the scenario are defined.

  11. Modeling, Estimation, and Control of Waste Heat Recovery Systems

    E-Print Network [OSTI]

    Luong, David

    2013-01-01

    simulations of an open power cycle using an actual drivingthis section simulated a power cycle to recover waste heatpurpose of simulating power cycle systems. The components

  12. Thermoelectric Conversion of Waste Heat to Electricity in an...

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

    in an Over the Road Diesel Powered Engine System by the Application of Advanced Thermoelectric Systems Implemented in a Hybrid Configuration Thermoelectric Conversion of Waste...

  13. Author's personal copy Towards optimization of a pyroelectric energy converter for harvesting waste heat

    E-Print Network [OSTI]

    Pilon, Laurent

    efficiencies. Organic Rankine cycles use organic working fluids such as refrigerants and hydrocarbons instead

  14. Towards model-based control of a steam Rankine process for engine waste heat recovery

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Towards model-based control of a steam Rankine process for engine waste heat recovery Johan Peralez control the system during nominal operation. Model reduction is obtained at the heat-exchanger level Paolino Tona and Antonio Sciarretta IFP Energies Nouvelles Control, Signal and System Department Lyon site

  15. The Beckett System Recovery and Utilization of Low Grade Waste Heat From Flue Gas 

    E-Print Network [OSTI]

    Henderson, W. R.; DeBiase, J. F.

    1983-01-01

    The Beckett Heat Recovery is a series of techniques for recovering low-grade waste heat from flue gas. Until the cost of fossil fuels began rising rapidly, flue gas below 600 F was considered economically unworthy of reclaim. This paper...

  16. Waste Heat Recovery in the Metal Working Industry 

    E-Print Network [OSTI]

    McMann, F. C.; Thurman, J.

    1983-01-01

    The use of exhaust gas heat exchangers to preheat combustion air in forge and heat treat furnaces is discussed. The temperature range of the applications are 1200o -2400o F. The installations discussed involve both new and retrofit construction...

  17. [Waste water heat recovery system]. Final report, September 30, 1992

    SciTech Connect (OSTI)

    Not Available

    1993-04-28

    The production capabilities for and field testing of the heat recovery system are described briefly. Drawings are included.

  18. Parametric Study to Characterize Low Activity Waste Tank Heat Removal Alternatives for Phase 1 Specification Development

    SciTech Connect (OSTI)

    GRENARD, C.E.

    2000-09-11

    Alternative for removing heat from Phase 1, low-activity waste feed double-shell tanks using the ventilation systems have been analyzed for Phase 1 waste feed delivery. The analysis was a parametric study using a model that predicted the waste temperatures for a range of primary and annulus ventilation system flow rates. The analysis was performed to determine the ventilation flow required to prevent the waste temperature from exceeding the Limiting Conditions for Operation limits during normal operation and the Safety Limits during off-normal events.

  19. Optimal Operation of a Waste Incineration Plant for District Heating Johannes Jaschke, Helge Smedsrud, Sigurd Skogestad*, Henrik Manum

    E-Print Network [OSTI]

    Skogestad, Sigurd

    Optimal Operation of a Waste Incineration Plant for District Heating Johannes J¨aschke, Helge@chemeng.ntnu.no off-line. This systematic approach is here applied to a waste incineration plant for district heating. In district heating networks, operators usually wish to ob- tain the lowest possible return temperature

  20. UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation into Waste Heat Recovery Methods for the UBC Microbrewery

    E-Print Network [OSTI]

    into Waste Heat Recovery Methods for the UBC Microbrewery Nazanin Bahrami, Michael Huang, Aldrich Huang Heat Recovery Methods for the UBC Microbrewery Written By: Nazanin Bahrami (45179090) Michael Huang already being a popular place for social activities), and the promotion of similar waste heat recovery

  1. Thermoelectric Conversion of Waste Heat to Electricity in an...

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

    unit in an over-the-road truck system. schock.pdf More Documents & Publications Thermoelectric Conversion of Wate Heat to Electricity in an IC Engine Powered Vehicle...

  2. Recovering Industrial Waste Heat by the Means of Thermoelectricity

    E-Print Network [OSTI]

    Kjelstrup, Signe

    . The purpose of the demonstration unit was to gen- erate electricity from energy dissipated as thermal. By method B, we calculated the heat flow from module thermal conductivity and temperature difference across this by two methods, A and B. In method A, the heat flow was estimated from cooling water volume flow

  3. Waste heat from kitchen cuts hot water electricity 23%

    SciTech Connect (OSTI)

    Barber, J.

    1984-05-21

    Heat recovered from the Hamburger Hamlet's kitchen in Bethesada, Maryland and used to pre-heat the million gallons of hot water used annually reduced hot water costs 23% and paid off the investment in 1.5 years. Potomac Electric initiated the installation of an air-to-water heat pump in the restaurant kitchen above the dishwasher at a cost of about $5300, with the restaurant obliged to reimburse the utility if performance was satisfactory. Outside water recirculates through storage tanks and the ceiling heat pump until it reaches the required 140/sup 0/F. The amount of electricity needed to bring the preheated water to that temperature was $3770 lower after the installation. Cooled air exhausted from the heat pump circulates throughout the kitchen.

  4. Turning Waste Heat into Power: Ener-G-Rotors and the Entrepreneurial Mentorship Program

    Broader source: Energy.gov [DOE]

    If you’ve ever driven by an industrial plant, you’ve probably noticed big white plumes rising from the tops of the facilities. While it might look like smoke or pollution at first glance, most of the time those white plumes are comprised of steam and heat, or what Ener-G-Rotors CEO Michael Newell calls waste heat. Mike and the researchers of Ener-G-Rotors are finding ways to use this escaped steam and turn it into energy.

  5. Advanced Energy and Water Recovery Technology from Low Grade Waste Heat

    SciTech Connect (OSTI)

    Dexin Wang

    2011-12-19

    The project has developed a nanoporous membrane based water vapor separation technology that can be used for recovering energy and water from low-temperature industrial waste gas streams with high moisture contents. This kind of exhaust stream is widely present in many industrial processes including the forest products and paper industry, food industry, chemical industry, cement industry, metal industry, and petroleum industry. The technology can recover not only the sensible heat but also high-purity water along with its considerable latent heat. Waste heats from such streams are considered very difficult to recover by conventional technology because of poor heat transfer performance of heat-exchanger type equipment at low temperature and moisture-related corrosion issues. During the one-year Concept Definition stage of the project, the goal was to prove the concept and technology in the laboratory and identify any issues that need to be addressed in future development of this technology. In this project, computational modeling and simulation have been conducted to investigate the performance of a nanoporous material based technology, transport membrane condenser (TMC), for waste heat and water recovery from low grade industrial flue gases. A series of theoretical and computational analyses have provided insight and support in advanced TMC design and experiments. Experimental study revealed condensation and convection through the porous membrane bundle was greatly improved over an impermeable tube bundle, because of the membrane capillary condensation mechanism and the continuous evacuation of the condensate film or droplets through the membrane pores. Convection Nusselt number in flue gas side for the porous membrane tube bundle is 50% to 80% higher than those for the impermeable stainless steel tube bundle. The condensation rates for the porous membrane tube bundle also increase 60% to 80%. Parametric study for the porous membrane tube bundle heat transfer performance was also done, which shows this heat transfer enhancement approach works well in a wide parameters range for typical flue gas conditions. Better understanding of condensing heat transfer mechanism for porous membrane heat transfer surfaces, shows higher condensation and heat transfer rates than non-permeable tubes, due to existence of the porous membrane walls. Laboratory testing has documented increased TMC performance with increased exhaust gas moisture content levels, which has exponentially increased potential markets for the product. The TMC technology can uniquely enhance waste heat recovery in tandem with water vapor recovery for many other industrial processes such as drying, wet and dry scrubber exhaust gases, dewatering, and water chilling. A new metallic substrate membrane tube development and molded TMC part fabrication method, provides an economical way to expand this technology for scaled up applications with less than 3 year payback expectation. A detailed market study shows a broad application area for this advanced waste heat and water recovery technology. A commercialization partner has been lined up to expand this technology to this big market. This research work led to new findings on the TMC working mechanism to improve its performance, better scale up design approaches, and economical part fabrication methods. Field evaluation work needs to be done to verify the TMC real world performance, and get acceptance from the industry, and pave the way for our commercial partner to put it into a much larger waste heat and waste water recovery market. This project is addressing the priority areas specified for DOE Industrial Technologies Program's (ITP's): Energy Intensive Processes (EIP) Portfolio - Waste Heat Minimization and Recovery platform.

  6. Waste heat recovery system for recapturing energy after engine aftertreatment systems

    SciTech Connect (OSTI)

    Ernst, Timothy C.; Nelson, Christopher R.

    2014-06-17

    The disclosure provides a waste heat recovery (WHR) system including a Rankine cycle (RC) subsystem for converting heat of exhaust gas from an internal combustion engine, and an internal combustion engine including the same. The WHR system includes an exhaust gas heat exchanger that is fluidly coupled downstream of an exhaust aftertreatment system and is adapted to transfer heat from the exhaust gas to a working fluid of the RC subsystem. An energy conversion device is fluidly coupled to the exhaust gas heat exchanger and is adapted to receive the vaporized working fluid and convert the energy of the transferred heat. The WHR system includes a control module adapted to control at least one parameter of the RC subsystem based on a detected aftertreatment event of a predetermined thermal management strategy of the aftertreatment system.

  7. Waste Heat Recovery from the Advanced Test Reactor Secondary Coolant Loop

    SciTech Connect (OSTI)

    Donna Post Guillen

    2012-11-01

    This study investigated the feasibility of using a waste heat recovery system (WHRS) to recover heat from the Advanced Test Reactor (ATR) secondary coolant system (SCS). This heat would be used to preheat air for space heating of the reactor building, thus reducing energy consumption, carbon footprint, and energy costs. Currently, the waste heat from the reactor is rejected to the atmosphere via a four-cell, induced-draft cooling tower. Potential energy and cost savings are 929 kW and $285K/yr. The WHRS would extract a tertiary coolant stream from the SCS loop and pump it to a new plate and frame heat exchanger, from which the heat would be transferred to a glycol loop for preheating outdoor air supplied to the heating and ventilation system. The use of glycol was proposed to avoid the freezing issues that plagued and ultimately caused the failure of a WHRS installed at the ATR in the 1980s. This study assessed the potential installation of a new WHRS for technical, logistical, and economic feasibility.

  8. Seismic modeling and analysis of a prototype heated nuclear waste storage tunnel, Yucca Mountain, Nevada

    E-Print Network [OSTI]

    Snieder, Roel

    Seismic modeling and analysis of a prototype heated nuclear waste storage tunnel, Yucca Mountain rock surrounding a tunnel in Yucca Mountain tuff and com- pared the results with field data obtained waves diffracted around the tunnel in the region of changing velocity. INTRODUCTION The Yucca Mountain

  9. Thermal Energy Storage/Waste Heat Recovery Applications in the Cement Industry 

    E-Print Network [OSTI]

    Beshore, D. G.; Jaeger, F. A.; Gartner, E. M.

    1979-01-01

    , and the Portland Cement Association have studied the potential benefits of using waste heat recovery methods and thermal energy storage systems in the cement manufacturing process. This work was performed under DOE Contract No. EC-77-C-01-50S4. The study has been...

  10. Transpired Solar Collector at NREL's Waste Handling Facility Uses Solar Energy to Heat Ventilation Air

    SciTech Connect (OSTI)

    2010-09-08

    The transpired solar collector was installed on NREL's Waste handling Facility (WHF) in 1990 to preheat ventilation air. The electrically heated WHF was an ideal candidate for the this technology - requiring a ventilation rate of 3,000 cubic feet per meter to maintain safe indoor conditions.

  11. Waste heat recovery from the European Spallation Source cryogenic helium plants - implications for system design

    SciTech Connect (OSTI)

    Jurns, John M.; Bäck, Harald; Gierow, Martin

    2014-01-29

    The European Spallation Source (ESS) neutron spallation project currently being designed will be built outside of Lund, Sweden. The ESS design includes three helium cryoplants, providing cryogenic cooling for the proton accelerator superconducting cavities, the target neutron source, and for the ESS instrument suite. In total, the cryoplants consume approximately 7 MW of electrical power, and will produce approximately 36 kW of refrigeration at temperatures ranging from 2-16 K. Most of the power consumed by the cryoplants ends up as waste heat, which must be rejected. One hallmark of the ESS design is the goal to recycle waste heat from ESS to the city of Lund district heating system. The design of the cooling system must optimize the delivery of waste heat from ESS to the district heating system and also assure the efficient operation of ESS systems. This report outlines the cooling scheme for the ESS cryoplants, and examines the effect of the cooling system design on cryoplant design, availability and operation.

  12. Cogeneration Waste Heat Recovery at a Coke Calcining Facility 

    E-Print Network [OSTI]

    Coles, R. L.

    1986-01-01

    for sale to a major oil refinery, while the remainder passes through a steam turbine generator and is used for deaeration and feedwater heating. The electricity produced is used for the plant auxiliaries and sold to the local utility. Many design... pumps and equipment on other critical systems. A backpressure steam turbine generator and a new 69 kV feeder from the local utility were included in the project scope. A simplified plant cycle diagram and performance summary at the plant design...

  13. UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation into Waste Heat Recovery for Usage by a Rooftop Greenhouse

    E-Print Network [OSTI]

    into Waste Heat Recovery for Usage by a Rooftop Greenhouse Rohit Singla, Jeremy Lord, Jorden Hetherington Investigation into Waste Heat Recovery for Usage by a Rooftop Greenhouse April 4, 2013 Dr. Naoko Ellis APSC 262 of this waste heat recovery method. Constraints that are taken into this investigation include various factors

  14. Cascaded organic rankine cycles for waste heat utilization

    DOE Patents [OSTI]

    Radcliff, Thomas D. (Vernon, CT); Biederman, Bruce P. (West Hartford, CT); Brasz, Joost J. (Fayetteville, NY)

    2011-05-17

    A pair of organic Rankine cycle systems (20, 25) are combined and their respective organic working fluids are chosen such that the organic working fluid of the first organic Rankine cycle is condensed at a condensation temperature that is well above the boiling point of the organic working fluid of the second organic Rankine style system, and a single common heat exchanger (23) is used for both the condenser of the first organic Rankine cycle system and the evaporator of the second organic Rankine cycle system. A preferred organic working fluid of the first system is toluene and that of the second organic working fluid is R245fa.

  15. Quantity, quality, and availability of waste heat from United States thermal power generation

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Gingerich, Daniel B [Carnegie Mellon Univ., Pittsburgh, PA (United States); Mauter, Meagan S [Carnegie Mellon Univ., Pittsburgh, PA (United States)

    2015-06-10

    Secondary application of unconverted heat produced during electric power generation has the potential to improve the life-cycle fuel efficiency of the electric power industry and the sectors it serves. This work quantifies the residual heat (also known as waste heat) generated by U.S. thermal power plants and assesses the intermittency and transport issues that must be considered when planning to utilize this heat. Combining Energy Information Administration plant-level data with literature-reported process efficiency data, we develop estimates of the unconverted heat flux from individual U.S. thermal power plants in 2012. Together these power plants discharged an estimated 18.9 billion GJth of residual heat in 2012, 4% of which was discharged at temperatures greater than 90 °C. We also characterize the temperature, spatial distribution, and temporal availability of this residual heat at the plant level and model the implications for the technical and economic feasibility of its end use. Increased implementation of flue gas desulfurization technologies at coal-fired facilities and the higher quality heat generated in the exhaust of natural gas fuel cycles are expected to increase the availability of residual heat generated by 10.6% in 2040.

  16. Quantity, quality, and availability of waste heat from United States thermal power generation

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Gingerich, Daniel B; Mauter, Meagan S

    2015-06-10

    Secondary application of unconverted heat produced during electric power generation has the potential to improve the life-cycle fuel efficiency of the electric power industry and the sectors it serves. This work quantifies the residual heat (also known as waste heat) generated by U.S. thermal power plants and assesses the intermittency and transport issues that must be considered when planning to utilize this heat. Combining Energy Information Administration plant-level data with literature-reported process efficiency data, we develop estimates of the unconverted heat flux from individual U.S. thermal power plants in 2012. Together these power plants discharged an estimated 18.9 billion GJthmore »of residual heat in 2012, 4% of which was discharged at temperatures greater than 90 °C. We also characterize the temperature, spatial distribution, and temporal availability of this residual heat at the plant level and model the implications for the technical and economic feasibility of its end use. Increased implementation of flue gas desulfurization technologies at coal-fired facilities and the higher quality heat generated in the exhaust of natural gas fuel cycles are expected to increase the availability of residual heat generated by 10.6% in 2040.« less

  17. Ionic Liquids for Utilization of Waste Heat from Distributed Power Generation Systems

    SciTech Connect (OSTI)

    Joan F. Brennecke; Mihir Sen; Edward J. Maginn; Samuel Paolucci; Mark A. Stadtherr; Peter T. Disser; Mike Zdyb

    2009-01-11

    The objective of this research project was the development of ionic liquids to capture and utilize waste heat from distributed power generation systems. Ionic Liquids (ILs) are organic salts that are liquid at room temperature and they have the potential to make fundamental and far-reaching changes in the way we use energy. In particular, the focus of this project was fundamental research on the potential use of IL/CO2 mixtures in absorption-refrigeration systems. Such systems can provide cooling by utilizing waste heat from various sources, including distributed power generation. The basic objectives of the research were to design and synthesize ILs appropriate for the task, to measure and model thermophysical properties and phase behavior of ILs and IL/CO2 mixtures, and to model the performance of IL/CO2 absorption-refrigeration systems.

  18. Incorporating Cold Cap Behavior in a Joule-heated Waste Glass Melter Model

    SciTech Connect (OSTI)

    Varija Agarwal; Donna Post Guillen

    2013-08-01

    In this paper, an overview of Joule-heated waste glass melters used in the vitrification of high level waste (HLW) is presented, with a focus on the cold cap region. This region, in which feed-to-glass conversion reactions occur, is critical in determining the melting properties of any given glass melter. An existing 1D computer model of the cold cap, implemented in MATLAB, is described in detail. This model is a standalone model that calculates cold cap properties based on boundary conditions at the top and bottom of the cold cap. Efforts to couple this cold cap model with a 3D STAR-CCM+ model of a Joule-heated melter are then described. The coupling is being implemented in ModelCenter, a software integration tool. The ultimate goal of this model is to guide the specification of melter parameters that optimize glass quality and production rate.

  19. Waste Classification based on Waste Form Heat Generation in Advanced Nuclear Fuel Cycles Using the Fuel-Cycle Integration and Tradeoffs (FIT) Model

    SciTech Connect (OSTI)

    Denia Djokic; Steven J. Piet; Layne F. Pincock; Nick R. Soelberg

    2013-02-01

    This study explores the impact of wastes generated from potential future fuel cycles and the issues presented by classifying these under current classification criteria, and discusses the possibility of a comprehensive and consistent characteristics-based classification framework based on new waste streams created from advanced fuel cycles. A static mass flow model, Fuel-Cycle Integration and Tradeoffs (FIT), was used to calculate the composition of waste streams resulting from different nuclear fuel cycle choices. This analysis focuses on the impact of waste form heat load on waste classification practices, although classifying by metrics of radiotoxicity, mass, and volume is also possible. The value of separation of heat-generating fission products and actinides in different fuel cycles is discussed. It was shown that the benefits of reducing the short-term fission-product heat load of waste destined for geologic disposal are neglected under the current source-based radioactive waste classification system , and that it is useful to classify waste streams based on how favorable the impact of interim storage is in increasing repository capacity.

  20. Waste Classification based on Waste Form Heat Generation in Advanced Nuclear Fuel Cycles Using the Fuel-Cycle Integration and Tradeoffs (FIT) Model - 13413

    SciTech Connect (OSTI)

    Djokic, Denia [Department of Nuclear Engineering, University of California - Berkeley, 4149 Etcheverry Hall, Berkeley, CA 94720-1730 (United States)] [Department of Nuclear Engineering, University of California - Berkeley, 4149 Etcheverry Hall, Berkeley, CA 94720-1730 (United States); Piet, Steven J.; Pincock, Layne F.; Soelberg, Nick R. [Idaho National Laboratory - INL, 2525 North Fremont Avenue, Idaho Falls, ID 83415 (United States)] [Idaho National Laboratory - INL, 2525 North Fremont Avenue, Idaho Falls, ID 83415 (United States)

    2013-07-01

    This study explores the impact of wastes generated from potential future fuel cycles and the issues presented by classifying these under current classification criteria, and discusses the possibility of a comprehensive and consistent characteristics-based classification framework based on new waste streams created from advanced fuel cycles. A static mass flow model, Fuel-Cycle Integration and Tradeoffs (FIT), was used to calculate the composition of waste streams resulting from different nuclear fuel cycle choices. This analysis focuses on the impact of waste form heat load on waste classification practices, although classifying by metrics of radiotoxicity, mass, and volume is also possible. The value of separation of heat-generating fission products and actinides in different fuel cycles is discussed. It was shown that the benefits of reducing the short-term fission-product heat load of waste destined for geologic disposal are neglected under the current source-based radioactive waste classification system, and that it is useful to classify waste streams based on how favorable the impact of interim storage is in increasing repository capacity. (authors)

  1. Light weight and economical exhaust heat exchanger for waste heat recovery using mixed radiant and convective heat transfer

    Broader source: Energy.gov [DOE]

    A hybrid heat exchanger is designed to keep highly stressed materials around the working fluid at a moderate temperature so that it can operate at higher working fluid pressure.

  2. Advanced Multi-Effect Distillation System for Desalination Using Waste Heat fromGas Brayton Cycles

    SciTech Connect (OSTI)

    Haihua Zhao; Per F. Peterson

    2012-10-01

    Generation IV high temperature reactor systems use closed gas Brayton Cycles to realize high thermal efficiency in the range of 40% to 60%. The waste heat is removed through coolers by water at substantially greater average temperature than in conventional Rankine steam cycles. This paper introduces an innovative Advanced Multi-Effect Distillation (AMED) design that can enable the production of substantial quantities of low-cost desalinated water using waste heat from closed gas Brayton cycles. A reference AMED design configuration, optimization models, and simplified economics analysis are presented. By using an AMED distillation system the waste heat from closed gas Brayton cycles can be fully utilized to desalinate brackish water and seawater without affecting the cycle thermal efficiency. Analysis shows that cogeneration of electricity and desalinated water can increase net revenues for several Brayton cycles while generating large quantities of potable water. The AMED combining with closed gas Brayton cycles could significantly improve the sustainability and economics of Generation IV high temperature reactors.

  3. Rainwater Harvesting 

    E-Print Network [OSTI]

    Crawford, Amanda

    2005-01-01

    stream_source_info Rainwater Harvesting.pdf.txt stream_content_type text/plain stream_size 5612 Content-Encoding ISO-8859-1 stream_name Rainwater Harvesting.pdf.txt Content-Type text/plain; charset=ISO-8859-1 tx H2O | pg.... 16 Rainwater HarvestingStory by Amanda Crawford Rainwater harvesting, a water collectionpractice used throughout the world for over 4,000 years, gives consumers access to an additional water source on their property. The collected rainwater...

  4. Engineered Osmosis for Energy Efficient Separations: Optimizing Waste Heat Utilization FINAL SCIENTIFIC REPORT DOE F 241.3

    SciTech Connect (OSTI)

    NATHAN HANCOCK

    2013-01-13

    The purpose of this study is to design (i) a stripper system where heat is used to strip ammonia (NH{sub 3}) and carbon dioxide (CO{sub 2}) from a diluted draw solution; and (ii) a condensation or absorption system where the stripped NH{sub 3} and CO{sub 2} are captured in condensed water to form a re-concentrated draw solution. This study supports the Industrial Technologies Program of the DOE Office of Energy Efficiency and Renewable Energy and their Industrial Energy Efficiency Grand Challenge award solicitation. Results from this study show that stimulated Oasys draw solutions composed of a complex electrolyte solution associated with the dissolution of NH{sub 3} and CO{sub 2} gas in water can successfully be stripped and fully condensed under standard atmospheric pressure. Stripper bottoms NH{sub 3} concentration can reliably be reduced to < 1 mg/L, even when starting with liquids that have an NH{sub 3} mass fraction exceeding 6% to stimulate diluted draw solution from the forward osmosis membrane component of the process. Concentrated draw solution produced by fully condensing the stripper tops was show to exceed 6 M-C with nitrogen-to-carbon (N:C) molar ratios on the order of two. Reducing the operating pressure of the stripper column serves to reduce the partial vapor pressure of both NH{sub 3} and CO{sub 2} in solution and enables lower temperature operation towards integration of industrial low-grade of waste heat. Effective stripping of solutes was observed with operating pressures as low as 100 mbar (3-inHg). Systems operating at reduced pressure and temperature require additional design considerations to fully condense and absorb these constituents for reuse within the Oasys EO system context. Comparing empirical data with process stimulation models confirmed that several key parameters related to vapor-liquid equilibrium and intrinsic material properties were not accurate. Additional experiments and refinement of material property databases within the chosen process stimulation software was required to improve the reliability of process simulations for engineering design support. Data from experiments was also employed to calculate critical mass transfer and system design parameters (such as the height equivalent to a theoretical plate (HETP)) to aid in process design. When measured in a less than optimal design state for the stripping of NH{sub 3} and CO{sub 2} from a simulated dilute draw solution the HETP for one type of commercial stripper packing material was 1.88 ft/stage. During this study it was observed that the heat duty required to vaporize the draw solution solutes is substantially affected by the amount of water boilup also produced to achieve a low NH{sub 3} stripper bottoms concentration specification. Additionally, fluid loading of the stripper packing media is a critical performance parameter that affects all facets of optimum stripper column performance. Condensation of the draw solution tops vapor requires additional process considerations if being conducted in sub-atmospheric conditions and low temperature. Future work will focus on the commercialization of the Oasys EO technology platform for numerous applications in water and wastewater treatment as well as harvesting low enthalpy energy with our proprietary osmotic heat engine. Engineering design related to thermal integration of Oasys EO technology for both low and hig-grade heat applications is underway. Novel thermal recovery processes are also being investigated in addition to the conventional approaches described in this report. Oasys Water plans to deploy commercial scale systems into the energy and zero liquid discharge markets in 2013. Additional process refinement will lead to integration of low enthalpy renewable heat sources for municipal desalination applications.

  5. Water treatment capacity of forward osmosis systems utilizing power plant waste heat

    SciTech Connect (OSTI)

    Zhou, Xingshi; Gingerich, Daniel B.; Mauter, Meagan S.

    2015-06-11

    Forward osmosis (FO) has the potential to improve the energy efficiency of membrane-based water treatment by leveraging waste heat from steam electric power generation as the primary driving force for separation. In this study, we develop a comprehensive FO process model, consisting of membrane separation, heat recovery, and draw solute regeneration (DSR) models. We quantitatively characterize three alternative processes for DSR: distillation, steam stripping, and air stripping. We then construct a mathematical model of the distillation process for DSR that incorporates hydrodynamics, mass and heat transport resistances, and reaction kinetics, and we integrate this into a model for the full FO process. Finally, we utilize this FO process model to derive a first-order approximation of the water production capacity given the rejected heat quantity and quality available at U.S. electric power facilities. We find that the upper bound of FO water treatment capacity using low-grade heat sources at electric power facilities exceeds process water treatment demand for boiler water make-up and flue gas desulfurization wastewater systems.

  6. Determination of heat conductivity and thermal diffusivity of waste glass melter feed: Extension to high temperatures

    SciTech Connect (OSTI)

    Rice, Jarrett A. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Pokorny, Richard [Inst. of Chemical Technology, Prague (Czech Republic); Schweiger, Michael J. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Hrma, Pavel R. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Pohang Univ. of Science and Technology (Korea, Republic of)

    2014-06-01

    The heat conductivity ({lambda}) and the thermal diffusivity (a) of reacting glass batch, or melter feed, control the heat flux into and within the cold cap, a layer of reacting material floating on the pool of molten glass in an all-electric continuous waste glass melter. After previously estimating {lambda} of melter feed at temperatures up to 680 deg C, we focus in this work on the {lambda}(T) function at T > 680 deg C, at which the feed material becomes foamy. We used a customized experimental setup consisting of a large cylindrical crucible with an assembly of thermocouples, which monitored the evolution of the temperature field while the crucible with feed was heated at a constant rate from room temperature up to 1100°C. Approximating measured temperature profiles by polynomial functions, we used the heat transfer equation to estimate the {lambda}(T) approximation function, which we subsequently optimized using the finite-volume method combined with least-squares analysis. The heat conductivity increased as the temperature increased until the feed began to expand into foam, at which point the conductivity dropped. It began to increase again as the foam turned into a bubble-free glass melt. We discuss the implications of this behavior for the mathematical modeling of the cold cap.

  7. Water treatment capacity of forward osmosis systems utilizing power plant waste heat

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Zhou, Xingshi; Gingerich, Daniel B.; Mauter, Meagan S.

    2015-06-11

    Forward osmosis (FO) has the potential to improve the energy efficiency of membrane-based water treatment by leveraging waste heat from steam electric power generation as the primary driving force for separation. In this study, we develop a comprehensive FO process model, consisting of membrane separation, heat recovery, and draw solute regeneration (DSR) models. We quantitatively characterize three alternative processes for DSR: distillation, steam stripping, and air stripping. We then construct a mathematical model of the distillation process for DSR that incorporates hydrodynamics, mass and heat transport resistances, and reaction kinetics, and we integrate this into a model for the fullmore »FO process. Finally, we utilize this FO process model to derive a first-order approximation of the water production capacity given the rejected heat quantity and quality available at U.S. electric power facilities. We find that the upper bound of FO water treatment capacity using low-grade heat sources at electric power facilities exceeds process water treatment demand for boiler water make-up and flue gas desulfurization wastewater systems.« less

  8. The composition, heating value and renewable share of the energy content of mixed municipal solid waste in Finland

    SciTech Connect (OSTI)

    Horttanainen, M. Teirasvuo, N.; Kapustina, V.; Hupponen, M.; Luoranen, M.

    2013-12-15

    Highlights: • New experimental data of mixed MSW properties in a Finnish case region. • The share of renewable energy of mixed MSW. • The results were compared with earlier international studies. • The average share of renewable energy was 30% and the average LHVar 19 MJ/kg. • Well operating source separation decreases the renewable energy content of MSW. - Abstract: For the estimation of greenhouse gas emissions from waste incineration it is essential to know the share of the renewable energy content of the combusted waste. The composition and heating value information is generally available, but the renewable energy share or heating values of different fractions of waste have rarely been determined. In this study, data from Finnish studies concerning the composition and energy content of mixed MSW were collected, new experimental data on the compositions, heating values and renewable share of energy were presented and the results were compared to the estimations concluded from earlier international studies. In the town of Lappeenranta in south-eastern Finland, the share of renewable energy ranged between 25% and 34% in the energy content tests implemented for two sample trucks. The heating values of the waste and fractions of plastic waste were high in the samples compared to the earlier studies in Finland. These high values were caused by good source separation and led to a low share of renewable energy content in the waste. The results showed that in mixed municipal solid waste the renewable share of the energy content can be significantly lower than the general assumptions (50–60%) when the source separation of organic waste, paper and cardboard is carried out successfully. The number of samples was however small for making extensive conclusions on the results concerning the heating values and renewable share of energy and additional research is needed for this purpose.

  9. The Subsistence Harvest of Northern Fur Seals St. George Island in 2007

    E-Print Network [OSTI]

    .................................................................................................................... 6 By-products and Waste .............................................................................................................................. 7 Oil Contamination, b) incidence of by-products and waste during the harvest process, c) the occurrence of males 124

  10. The Subsistence Harvest of Northern Fur Seals St. George Island in 2008

    E-Print Network [OSTI]

    .................................................................................................................... 6 By-products and Waste .............................................................................................................................. 7 Oil Contamination, b) incidence of by-products and waste during the harvest process, c) the occurrence of older male

  11. Two component absorption/phase separation chemical heat pump to provide temperature amplification to waste heat streams

    DOE Patents [OSTI]

    Scott, T.C.; Kaplan, S.I.

    1987-09-04

    A chemical heat pump that utilizes liquid/liquid phase separation rather than evaporation to separate two components in a heat of mixing chemical heat pump process. 3 figs.

  12. Transpired Solar Collector at NREL's Waste Handling Facility Uses Solar Energy to Heat Ventilation Air (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-09-01

    The transpired solar collector was installed on NREL's Waste handling Facility (WHF) in 1990 to preheat ventilation air. The electrically heated WHF was an ideal candidate for the this technology - requiring a ventilation rate of 3,000 cubic feet per meter to maintain safe indoor conditions.

  13. Assessment of adsorber bed designs in waste-heat driven adsorption cooling systems for vehicle air conditioning and refrigeration

    E-Print Network [OSTI]

    Bahrami, Majid

    ) for vehicle air conditioning and refrigeration (A/C­R) applications. Adsorber beds should be specificallyAssessment of adsorber bed designs in waste-heat driven adsorption cooling systems for vehicle air conditioning and refrigeration Amir Sharafian, Majid Bahrami n Laboratory for Alternative Energy Conversion

  14. Use Feedwater Economizers for Waste Heat Recovery: Office of Industrial Technologies (OIT) Steam Energy Tips No.3

    SciTech Connect (OSTI)

    Not Available

    2002-03-01

    A feedwater economizer reduces steam boiler fuel requirements by transferring heat from the flue gas to incoming feedwater. Boiler flue gases are often rejected to the stack at temperatures more than 100 F to 150 F higher than the temperature of the generated steam. Generally, boiler efficiency can be increased by 1% for every 40 F reduction in flue gas temperature. By recovering waste heat, an economizer can often reduce fuel requirements by 5% to 10% and pay for itself in less than 2 years. The table provides examples of the potential for heat recovery.

  15. 7-122 A solar pond power plant operates by absorbing heat from the hot region near the bottom, and rejecting waste heat to the cold region near the top. The maximum thermal efficiency that the power plant

    E-Print Network [OSTI]

    Bahrami, Majid

    7-49 7-122 A solar pond power plant operates by absorbing heat from the hot region near the bottom, and rejecting waste heat to the cold region near the top. The maximum thermal efficiency that the power plant can have is to be determined. Analysis The highest thermal efficiency a heat engine operating between

  16. Optimization of biological recycling of plant nutrients in livestock waste by utilizing waste heat from cooling water. Final report May 75-Sep 81

    SciTech Connect (OSTI)

    Maddox, J.J.; Behrends, L.L.; Burch, D.W.; Kingsley, J.B.; Waddell, E.L. Jr

    1982-05-01

    The report summarizes a 5-year study of the beneficial uses of waste heat from condenser cooling water from steam-electric generating plants. The major effort addressed the recovery of plant nutrients in swine manure by aquatic farming of selected fish and Chinese waterchestnuts. Another effort included biogas production from swine manure in an anaerobic digester and the use of the digester waste to fertilize the aquatic farming system. Optimum recovery of plant nutrients resulted from operation of an integrated fish and waterchestnut system. Flowing water systems were 30-50% more productive than static systems. Annual fish yields of 5000-7000 lb/acre are projected for a properly stocked system over a 150-180 day growing period. Similarly, waterchestnut yields of nearly 17.8 tons/acre and dry hay yields of 6.7 tons/acre from sand-bed filters would be expected when fed wastewater from the fish system. The quality of the water leaving the sand beds would meet tertiary wastewater treatment standards during the growing season. An estimated 2000-head swine facility with a $400,000 investment would annually produce a 20% rate of return, save 360,000 bbl of oil through waste heat utilization, and produce biogas equivalent to 3000 bbl of oil.

  17. Waste heat recovery from adiabatic diesel engines by exhaust-driven Brayton cycles

    SciTech Connect (OSTI)

    Khalifa, H.E.

    1983-12-01

    This report presents an evaluation of Brayton Bottoming Systems (BBS) as waste heat recovery devices for future adiabatic diesel engines in heavy duty trucks. Parametric studies were performed to evaluate the influence of external and internal design parameters on BBS performance. Conceptual design and trade-off studies were undertaken to estimate the optimum configuration, size, and cost of major hardware components. The potential annual fuel savings of long-haul trucks equipped with BBS were estimated. The addition of a BBS to a turbocharged, nonaftercooled adiabatic engine would improve fuel economy by as much as 12%. In comparison with an aftercooled, turbocompound engine, the BBS-equipped turbocharged engine would offer a 4.4% fuel economy advantage. It is also shown that, if installed in tandem with an aftercooled turbocompound engine, the BBS could effect a 7.2% fuel economy improvement. The cost of a mass-produced 38 Bhp BBS is estimated at about $6460 or $170/Bhp. Technical and economic barriers that would hinder the commercial introduction of bottoming systems were identified.

  18. Large-dimension, high-ZT Thermoelectric Nanocomposites for High-Power High-efficiency Waste Heat Recovery for Electricity Generation

    Broader source: Energy.gov [DOE]

    Large-dimension, high-ZT BiTe and Pb-based nanocomposites produced with a low-cost scalable process were used for development and testing of TE module prototypes, and demonstration of a waste heat recovery system

  19. Effect of pre-harvest and post-harvest conditions and treatments on plum fruit quality

    E-Print Network [OSTI]

    Crisosto, Carlos H.

    include heat treatment, ozone, polyamine and calcium treatments, as well as fumigationReview Effect of pre-harvest and post-harvest conditions and treatments on plum fruit quality G. A ethylene, which is a key ripening regulator, while treatments with 1-methylcyclopropene (1-MCP

  20. Investigating potential light-duty efficiency improvements through simulation of turbo-compounding and waste-heat recovery systems

    SciTech Connect (OSTI)

    Edwards, Kevin Dean; Wagner, Robert M; Briggs, Thomas E

    2010-01-01

    Modern diesel engines used in light-duty transportation applications have peak brake thermal efficiencies in the range of 40-42% for high-load operation with substantially lower efficiencies at realistic road-load conditions. Thermodynamic energy and exergy analysis reveals that the largest losses from these engines are due to combustion irreversibility and heat loss to the coolant, through the exhaust, and by direct convection and radiation to the environment. Substantial improvement in overall engine efficiency requires reducing or recovering these losses. Unfortunately, much of the heat transfer either occurs at relatively low temperatures resulting in large entropy generation (such as in the air-charge cooler), is transferred to low-exergy flow streams (such as the oil and engine coolant), or is radiated or convected directly to the environment. While there are significant opportunities for recovery from the exhaust and EGR cooler for heavy-duty applications, achieving similar benefits for light-duty applications is complicated by transient, low-load operation at typical driving conditions and competition with the turbocharger and aftertreatment system for the limited thermal resources. We have developed an organic Rankine cycle model using GT-Suite to investigate the potential for efficiency improvement through waste-heat recovery from the exhaust and EGR cooler of a light-duty diesel engine. The model is used to examine the effects of efficiency-improvement strategies such as cylinder deactivation, use of advanced materials and improved insulation to limit ambient heat loss, and turbo-compounding on the steady-state performance of the ORC system and the availability of thermal energy for downstream aftertreatment systems. Results from transient drive-cycle simulations are also presented, and we discuss strategies to address operational difficulties associated with transient drive cycles and balancing the thermal requirements of waste-heat recovery, turbocharging or turbo-compounding, and exhaust aftertreatment.

  1. Rainwater Harvesting Program Evaluation

    E-Print Network [OSTI]

    and collect rainwater and divert to landscape areas that need extra water Install a rainwater harvesting system Install a rainwater harvesting system to water landscape Install a rainwater harvesting systemRainwater Harvesting Program Evaluation Your views on the quality and effectiveness of Extension

  2. Vitrification of high level nuclear waste inside ambient temperature disposal containers using inductive heating: The SMILE system

    SciTech Connect (OSTI)

    Powell, J.; Reich, M.; Barletta, R.

    1996-03-01

    A new approach, termed SMILE (Small Module Inductively Loaded Energy), for the vitrification of high level nuclear wastes (HLW) is described. Present vitrification systems liquefy the HLW solids and associated frit material in large high temperature melters. The molten mix is then poured into small ({approximately}1 m{sup 3}) disposal canisters, where it solidifies and cools. SMILE eliminates the separate, large high temperature melter. Instead, the BLW solids and frit melt inside the final disposal containers, using inductive heating. The contents then solidify and cool in place. The SMILE modules and the inductive heating process are designed so that the outer stainless can of the module remains at near ambient temperature during the process cycle. Module dimensions are similar to those of present disposal containers. The can is thermally insulated from the high temperature inner container by a thin layer of refractory alumina firebricks. The inner container is a graphite crucible lined with a dense alumina refractory that holds the HLW and fiit materials. After the SMILE module is loaded with a slurry of HLW and frit solids, an external multi-turn coil is energized with 30-cycle AC current. The enclosing external coil is the primary of a power transformer, with the graphite crucible acting as a single turn ``secondary.`` The induced current in the ``secondary`` heats the graphite, which in turn heats the HLW and frit materials. The first stage of the heating process is carried out at an intermediate temperature to drive off remnant liquid water and water of hydration, which takes about 1 day. The small fill/vent tube to the module is then sealed off and the interior temperature raised to the vitrification range, i.e., {approximately}1200C. Liquefaction is complete after approximately 1 day. The inductive heating then ceases and the module slowly loses heat to the environment, allowing the molten material to solidify and cool down to ambient temperature.

  3. The changing character of household waste in the Czech Republic between 1999 and 2009 as a function of home heating methods

    SciTech Connect (OSTI)

    Doležalová, Markéta; Benešová, Libuše; Závodská, Anita

    2013-09-15

    Highlights: • The character of household waste in the three different types of households were assesed. • The quantity, density and composition of household waste were determined. • The physicochemical characteristics were determined. • The changing character of household waste during past 10 years was described. • The potential of energy recovery of household waste in Czech republic was assesed. - Abstract: The authors of this paper report on the changing character of household waste, in the Czech Republic between 1999 and 2009 in households differentiated by their heating methods. The data presented are the result of two projects, financed by the Czech Ministry of Environment, which were undertaken during this time period with the aim of focusing on the waste characterisation and complete analysis of the physicochemical properties of the household waste. In the Czech Republic, the composition of household waste varies significantly between different types of households based on the methods of home heating employed. For the purposes of these studies, the types of homes were divided into three categories – urban, mixed and rural. Some of the biggest differences were found in the quantities of certain subsample categories, especially fine residue (matter smaller than 20 mm), between urban households with central heating and rural households that primarily employ solid fuel such coal or wood. The use of these solid fuels increases the fraction of the finer categories because of the higher presence of ash. Heating values of the residual household waste from the three categories varied very significantly, ranging from 6.8 MJ/kg to 14.2 MJ/kg in 1999 and from 6.8 MJ/kg to 10.5 MJ/kg in 2009 depending on the type of household and season. The same factors affect moisture of residual household waste which varied from 23.2% to 33.3%. The chemical parameters also varied significantly, especially in the quantities of Tl, As, Cr, Zn, Fe and Mn, which were higher in rural households. Because knowledge about the properties of household waste, as well as its physicochemical characteristics, is very important not only for future waste management, but also for the prediction of the behaviour and influence of the waste on the environment as the country continues to streamline its legislation to the European Union’s solid waste mandates, the results of these studies were employed by the Czech Ministry of Environment to optimise the national waste management strategy.

  4. Determination of temperature-dependent heat conductivity and thermal diffusivity of waste glass melter feed

    SciTech Connect (OSTI)

    Pokorny, Richard; Rice, Jarrett A.; Schweiger, Michael J.; Hrma, Pavel R.

    2013-06-01

    The cold cap is a layer of reacting glass batch floating on the surface of melt in an all-electric continuous glass melter. The heat needed for the conversion of the melter feed to molten glass must be transferred to and through the cold cap. Since the heat flux into the cold cap determines the rate of melting, the heat conductivity is a key property of the reacting feed. We designed an experimental setup consisting of a large cylindrical crucible with an assembly of thermocouples that monitors the evolution of the temperature field while the crucible is heated at a constant rate. Then we used two methods to calculate the heat conductivity and thermal diffusivity of the reacting feed: the approximation of the temperature field by polynomial functions and the finite-volume method coupled with least-squares analysis. Up to 680°C, the heat conductivity of the reacting melter feed was represented by a linear function of temperature.

  5. Waste Heat Recovery and Recycling in Thermal Separation Processes: Distillation, Multi-Effect Evaporation (MEE) and Crystallization Processes

    SciTech Connect (OSTI)

    Emmanuel A. Dada; Chandrakant B. Panchal; Luke K. Achenie; Aaron Reichl; Chris C. Thomas

    2012-12-03

    Evaporation and crystallization are key thermal separation processes for concentrating and purifying inorganic and organic products with energy consumption over 1,000 trillion Btu/yr. This project focused on a challenging task of recovering low-temperature latent heat that can have a paradigm shift in the way thermal process units will be designed and operated to achieve high-energy efficiency and significantly reduce the carbon footprint as well as water footprint. Moreover, this project has evaluated the technical merits of waste-heat powered thermal heat pumps for recovery of latent heat from distillation, multi-effect evaporation (MEE), and crystallization processes and recycling into the process. The Project Team has estimated the potential energy, economics and environmental benefits with the focus on reduction in CO2 emissions that can be realized by 2020, assuming successful development and commercialization of the technology being developed. Specifically, with aggressive industry-wide applications of heat recovery and recycling with absorption heat pumps, energy savings of about 26.7 trillion Btu/yr have been estimated for distillation process. The direct environmental benefits of this project are the reduced emissions of combustible products. The estimated major reduction in environmental pollutants in the distillation processes is in CO2 emission equivalent to 3.5 billion lbs/year. Energy consumption associated with water supply and treatments can vary between 1,900 kWh and 23,700 kWh per million-gallon water depending on sources of natural waters [US DOE, 2006]. Successful implementation of this technology would significantly reduce the demand for cooling-tower waters, and thereby the use and discharge of water treatment chemicals. The Project Team has also identified and characterized working fluid pairs for the moderate-temperature heat pump. For an MEE process, the two promising fluids are LiNO3+KNO3+NANO3 (53:28:19 ) and LiNO3+KNO3+NANO2(53:35:12). And for an H2O2 distillation process, the two promising fluids are Trifluoroethanol (TFE) + Triethylene Glycol Dimethyl ether (DMETEG) and Ammonia+ Water. Thermo-physical properties calculated by Aspen+ are reasonably accurate. Documentation of the installation of pilot-plants or full commercial units were not found in the literature for validating thermo-physical properties in an operating unit. Therefore, it is essential to install a pilot-scale unit to verify thermo-physical properties of working fluid pairs and validate the overall efficiency of the thermal heat pump at temperatures typical of distillation processes. For an HO2 process, the ammonia-water heat pump system is more compact and preferable than the TFE-DMETEG heat pump. The ammonia-water heat pump is therefore recommended for the H2O2 process. Based on the complex nature of the heat recovery system, we anticipated that capital costs could make investments financially unattractive where steam costs are low, especially where co-generation is involved. We believe that the enhanced heat transfer equipment has the potential to significantly improve the performance of TEE crystallizers, independent of the absorption heat-pump recovery system. Where steam costs are high, more detailed design/cost engineering will be required to verify the economic viability of the technology. Due to the long payback period estimated for the TEE open system, further studies on the TEE system are not warranted unless there are significant future improvements to heat pump technology. For the H2O2 distillation cycle heat pump waste heat recovery system, there were no significant process constraints and the estimated 5 years payback period is encouraging. We therefore recommend further developments of application of the thermal heat pump in the H2O2 distillation process with the focus on the technical and economic viability of heat exchangers equipped with the state-of-the-art enhancements. This will require additional funding for a prototype unit to validate enhanced thermal performances of heat transfer equipment, evaluat

  6. Design of organic Rankine cycles for conversion of waste heat in a polygeneration plant

    E-Print Network [OSTI]

    DiGenova, Kevin (Kevin J.)

    2011-01-01

    Organic Rankine cycles provide an alternative to traditional steam Rankine cycles for the conversion of low grade heat sources, where steam cycles are known to be less efficient and more expensive. This work examines organic ...

  7. WEB HARVESTING Wolfgang Gatterbauer

    E-Print Network [OSTI]

    Gatterbauer, Wolfgang

    WEB HARVESTING Wolfgang Gatterbauer Computer Science and Engineering University of Washington, USA SYNONYMS web data extraction, web information extraction, web mining DEFINITION Web harvesting describes the process of gathering and integrating data from var- ious heterogeneous web sources. Necessary input

  8. The Subsistence Harvest of Northern Fur Seals St. George Island in 2006

    E-Print Network [OSTI]

    .................................................................................................................... 6 By Products and Waste .............................................................................................................................. 7 Oil Contamination on: a) the number of sub-adult male fur seals harvested, b) incidence of by-products and waste during

  9. Heat Pipe Performance Enhancement with Binary Mixture Fluids that Exhibit Strong Concentration Marangoni Effects

    E-Print Network [OSTI]

    Armijo, Kenneth Miguel

    2011-01-01

    Pipes for Waste Heat Recovery…..………………………………… Chapter 2 –analysis involving waste heat recovery of solar energyof Industrial Waste Heat Recovery Technologies for Moderate

  10. Application of Annular Linear Induction Pumps Technology for Waste Heat Rejection and Power Conversion

    SciTech Connect (OSTI)

    Adkins, Harold E.

    2005-03-16

    The U.S.-sponsored Jupiter Icy Moons Orbiter (JIMO) program will require a light weight, efficient, and reliable power generation system capable of a 20+ year lifespan. This requirement has renewed interest in orbiter technological development. Sub-components of the orbiter system are the primary and secondary power conversion/heat rejection systems for both the proposed nuclear reactors and Brayton cycle heat engines. Brayton-cycle conversion technology has been identified as an excellent candidate for nuclear electric propulsion (NEP) power conversion systems. The conversion/rejection systems for these components typically utilize pumped molten metal as the heat transfer medium. Electromagnetic (EM) Annular Linear Induction Pumps (ALIPs) are ideal for this purpose as they can operate at moderate to high efficiency, at elevated temperature, do not involve moving parts (solid-state; long life), and require no bearings or seals. A parametric study was performed to develop a suite of ALIP preliminary designs capable of providing specified pressure and mass flow rate ranges for the proposed NaK(78) Brayton-cycle heat rejection loop. A limited study was also performed for the proposed lithium-cooled nuclear reactor heat transport loops; however, the design of these units is still in its infancy. Both studies were conducted by Pacific Northwest National Laboratory (PNNL) with the MHD Systems’ ALIP Design Code. The studies focused on designing ALIPs that displayed reasonably high efficiency and low source voltages as well as low mass and smallest geometric envelope.

  11. Vibration Harvesting using Electromagnetic Transduction

    E-Print Network [OSTI]

    Waterbury, Andrew

    2011-01-01

    harvesting Microelectromechanical systems (MEMS) are smallMEMS Vibration Energy Harvesting Devices With Passive Resonance Frequency Adaptation Capability,” Microelectromechanical

  12. Opportunity Analysis for Recovering Energy from Industrial Waste Heat and Emissions

    SciTech Connect (OSTI)

    Viswanathan, Vish V.; Davies, Richard W.; Holbery, Jim D.

    2006-04-01

    United States industry consumed 32.5 Quads (34,300 PJ) of energy during 2003, which was 33.1% of total U.S. energy consumption (EIA 2003 Annual Energy Review). The U.S. industrial complex yields valuable goods and products. Through its manufacturing processes as well as its abundant energy consumption, it supports a multi-trillion dollar contribution to the gross domestic product and provides millions of jobs in the U.S. each year. Industry also yields waste products directly through its manufacturing processes and indirectly through its energy consumption. These waste products come in two forms, chemical and thermal. Both forms of waste have residual energy values that are not routinely recovered. Recovering and reusing these waste products may represent a significant opportunity to improve the energy efficiency of the U.S. industrial complex. This report was prepared for the U.S. Department of Energy Industrial Technologies Program (DOE-ITP). It analyzes the opportunity to recover chemical emissions and thermal emissions from U.S. industry. It also analyzes the barriers and pathways to more effectively capitalize on these opportunities. A primary part of this analysis was to characterize the quantity and energy value of the emissions. For example, in 2001, the industrial sector emitted 19% of the U.S. greenhouse gases (GHG) through its industrial processes and emitted 11% of GHG through electricity purchased from off-site utilities. Therefore, industry (not including agriculture) was directly and indirectly responsible for emitting 30% of the U.S. GHG. These emissions were mainly comprised of carbon dioxide (CO2), but also contained a wide-variety of CH4 (methane), CO (carbon monoxide), H2 (hydrogen), NMVOC (non-methane volatile organic compound), and other chemicals. As part of this study, we conducted a survey of publicly available literature to determine the amount of energy embedded in the emissions and to identify technology opportunities to capture and reuse this energy. As shown in Table E-1, non-CO2 GHG emissions from U.S. industry were identified as having 2180 peta joules (PJ) or 2 Quads (quadrillion Btu) of residual chemical fuel value. Since landfills are not traditionally considered industrial organizations, the industry component of these emissions had a value of 1480 PJ or 1.4 Quads. This represents approximately 4.3% of the total energy used in the United States Industry.

  13. Waste Heat-to-Power in Small Scale Industry Using Scroll Expander for

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics » USAJobs SearchAMERICA'S FUTURE. regulators02-03Heat ManagementOrganic Rankine

  14. Final Report: Modifications and Optimization of the Organic Rankine Cycle to Improve the Recovery of Waste Heat

    SciTech Connect (OSTI)

    Donna Post Guillen; Jalal Zia

    2013-09-01

    This research and development (R&D) project exemplifies a shared public private commitment to advance the development of energy efficient industrial technologies that will reduce the U.S. dependence upon foreign oil, provide energy savings and reduce greenhouse gas emissions. The purpose of this project was to develop and demonstrate a Direct Evaporator for the Organic Rankine Cycle (ORC) for the conversion of waste heat from gas turbine exhaust to electricity. In conventional ORCs, the heat from the exhaust stream is transferred indirectly to a hydrocarbon based working fluid by means of an intermediate thermal oil loop. The Direct Evaporator accomplishes preheating, evaporation and superheating of the working fluid by a heat exchanger placed within the exhaust gas stream. Direct Evaporation is simpler and up to 15% less expensive than conventional ORCs, since the secondary oil loop and associated equipment can be eliminated. However, in the past, Direct Evaporation has been avoided due to technical challenges imposed by decomposition and flammability of the working fluid. The purpose of this project was to retire key risks and overcome the technical barriers to implementing an ORC with Direct Evaporation. R&D was conducted through a partnership between the Idaho National Laboratory (INL) and General Electric (GE) Global Research Center (GRC). The project consisted of four research tasks: (1) Detailed Design & Modeling of the ORC Direct Evaporator, (2) Design and Construction of Partial Prototype Direct Evaporator Test Facility, (3) Working Fluid Decomposition Chemical Analyses, and (4) Prototype Evaluation. Issues pertinent to the selection of an ORC working fluid, along with thermodynamic and design considerations of the direct evaporator, were identified. The FMEA (Failure modes and effects analysis) and HAZOP (Hazards and operability analysis) safety studies performed to mitigate risks are described, followed by a discussion of the flammability analysis of the direct evaporator. A testbed was constructed and the prototype demonstrated at the GE GRC Niskayuna facility.

  15. Probabilistic Data Collection Protocols for Energy Harvesting Sensor Networks

    E-Print Network [OSTI]

    Shinozuka, Masanobu

    Probabilistic Data Collection Protocols for Energy Harvesting Sensor Networks Masaya Yoshida ambient energy sources include solar, vibration, heat and wind. However, sensor nodes powered by energy protocols for power-efficient data collection have been proposed [1][2]. Recently, energy harvesting has

  16. Development of Thermoelectric Technology for Automotive Waste...

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

    Thermoelectric Technology for Automotive Waste Heat Recovery Development of Thermoelectric Technology for Automotive Waste Heat Recovery Overview and status of project to develop...

  17. Vehicle Fuel Economy Improvement through Thermoelectric Waste...

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

    Fuel Economy Improvement through Thermoelectric Waste Heat Recovery Vehicle Fuel Economy Improvement through Thermoelectric Waste Heat Recovery 2005 Diesel Engine Emissions...

  18. Development of Thermoelectric Technology for Automotive Waste...

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

    Advanced Thermoelectric Materials and Generator Technology for Automotive Waste Heat at GM Advanced Thermoelectric Materials and Generator Technology for Automotive Waste Heat at...

  19. Interpreting Deer Harvest Records. 

    E-Print Network [OSTI]

    Guynn, Dwight E.

    1984-01-01

    Agricultural Extension Service Zerle L. Carpenter. Director College Station B-1486 People Helping People Interpreting Deer Harvest Records LIB ARY Dwight f. Guynn* JUN 11 1985 Deer harvest records are extremely important to proper deer herd man... to collect from deer harvests are: ages, weights, body conditions and measurements of antler size. The data should be grouped according to age categories and ana lyzed separately for bucks and does . This pub lication describes types of calculations...

  20. Afternoon Session-Part 1 Energy Harvesting

    E-Print Network [OSTI]

    Ulukus, Sennur

    electricity from surrounding environment light, vibration, heat, radio waves... 7/27/2011Wireless InformationAfternoon Session- Part 1 Energy Harvesting Wireless Networks Aylin Yener yener@ee.psu.edu Wireless with "rechargeable nodes" 7/27/2011Wireless Information Theory Summer School in Oulu, Finland #12;Introduction

  1. Thermoelectric Conversion of Waste Heat to Electricity in an IC Engine Powered Vehicle

    SciTech Connect (OSTI)

    2012-01-31

    The thermoelectric generator shorting system provides the capability to monitor and short-out individual thermoelectric couples in the event of failure. This makes the series configured thermoelectric generator robust to individual thermoelectric couple failure. Open circuit detection of the thermoelectric couples and the associated short control is a key technique to ensure normal functionality of the TE generator under failure of individual TE couples. This report describes a five-year effort whose goal was the understanding the issues related to the development of a thermoelectric energy recovery device for a Class-8 truck. Likely materials and important issues related to the utility of this generator were identified. Several prototype generators were constructed and demonstrated. The generators developed demonstrated several new concepts including advanced insulation, couple bypass technology and the first implementation of skutterudite thermoelectric material in a generator design. Additional work will be required to bring this system to fruition. However, such generators offer the possibility of converting energy that is otherwise wasted to useful electric power. Uur studies indicate that this can be accomplished in a cost-effective manner for this application.

  2. Industrial Solid-State Energy Harvesting: Mechanisms and Examples Matthew Kocoloski, Carnegie Mellon University

    E-Print Network [OSTI]

    Kissock, Kelly

    Industrial Solid-State Energy Harvesting: Mechanisms and Examples Matthew Kocoloski, Carnegie the potential for solid-state energy harvesting in industrial applications. In contrast to traditional heat in an industrial application. The example considers energy harvesting from a furnace at a glass manufacturing

  3. Thermoelectric generators incorporating phase-change materials for waste heat recovery from engine exhaust

    DOE Patents [OSTI]

    Meisner, Gregory P; Yang, Jihui

    2014-02-11

    Thermoelectric devices, intended for placement in the exhaust of a hydrocarbon fuelled combustion device and particularly suited for use in the exhaust gas stream of an internal combustion engine propelling a vehicle, are described. Exhaust gas passing through the device is in thermal communication with one side of a thermoelectric module while the other side of the thermoelectric module is in thermal communication with a lower temperature environment. The heat extracted from the exhaust gasses is converted to electrical energy by the thermoelectric module. The performance of the generator is enhanced by thermally coupling the hot and cold junctions of the thermoelectric modules to phase-change materials which transform at a temperature compatible with the preferred operating temperatures of the thermoelectric modules. In a second embodiment, a plurality of thermoelectric modules, each with a preferred operating temperature and each with a uniquely-matched phase-change material may be used to compensate for the progressive lowering of the exhaust gas temperature as it traverses the length of the exhaust pipe.

  4. Vibration Harvesting using Electromagnetic Transduction

    E-Print Network [OSTI]

    Waterbury, Andrew

    2011-01-01

    Puers, “Harvesting Energy from Vibrations by a Micromachinedsignal processing using vibration-based power generation,”electromagnetic generator for vibration energy harvesting

  5. Vibration Harvesting using Electromagnetic Transduction

    E-Print Network [OSTI]

    Waterbury, Andrew

    2011-01-01

    radio waves, and mechanical vibrations can also beintended to harvest mechanical vibrations by converting thethe harvesting of mechanical vibrations as addressed by this

  6. Rainwater Harvesting in Texas 

    E-Print Network [OSTI]

    Kniffen, Billy

    2008-07-14

    sanitizing device such as an ultraviolet light to provide high quality water for drinking and cooking. Nonpo- table uses for the home include commodes and clothes washers. In Texas, rainwater harvesting has been encouraged through the elimination...

  7. Development of MEMS based pyroelectric thermal energy harvesters...

    Office of Scientific and Technical Information (OSTI)

    Laboratory (ORNL) is developing a new type of high efficiency thermal waste heat energy converter that can be used to actively cool electronic devices, concentrated...

  8. Geothermal Technology Breakthrough in Alaska: Harvesting Heat...

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

    to be produced at temperatures below the boiling point (212 degrees Fahrenheit).This innovation increases the development potential of geothermal sites worldwide. The exciting news...

  9. Waste Heat Recovery

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About1996HowFOAShowingFuel EfficiencyWashington , DC 20585 April

  10. Heat Pump for High School Heat Recovery 

    E-Print Network [OSTI]

    Huang, K.; Wang, H.; Zhou, X.

    2006-01-01

    The heat pump system used for recycling and reusing waste heat in s high school bathroom was minutely analyzed in its coefficient of performance, onetime utilization ratio of energy, economic property and so on. The results showed that this system...

  11. Automotive Fuel Efficiency Improvement via Exhaust Gas Waste...

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

    Fuel Efficiency Improvement via Exhaust Gas Waste Heat Conversion to Electricity Automotive Fuel Efficiency Improvement via Exhaust Gas Waste Heat Conversion to Electricity Working...

  12. Multi-physics modeling of thermoelectric generators for waste...

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

    physics modeling of thermoelectric generators for waste heat recovery applications Multi-physics modeling of thermoelectric generators for waste heat recovery applications Model...

  13. Thermoelectrics: From Space Power Systems to Terrestrial Waste...

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

    Waste Heat Recovery Applications Progress in reliable high temperature segmented thermoelectric devices and potential for producing electricity from waste heat from energy...

  14. Low and high Temperature Dual Thermoelectric Generation Waste...

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

    and high Temperature Dual Thermoelectric Generation Waste Heat Recovery System for Light-Duty Vehicles Low and high Temperature Dual Thermoelectric Generation Waste Heat Recovery...

  15. Design Considerations for Industrial Heat Recovery Systems 

    E-Print Network [OSTI]

    Bywaters, R. P.

    1979-01-01

    recovery design considerations as well as a summary of typical "waste heat" sources and application sites. A procedure for conducting industrial waste heat surveys is presented. Thermodynamic and heat transfer factors are discussed. Problems associated...

  16. Light harvesting arrays

    DOE Patents [OSTI]

    Lindsey, Jonathan S. (Raleigh, NC)

    2002-01-01

    A light harvesting array useful for the manufacture of devices such as solar cells comprises: (a) a first substrate comprising a first electrode; and (b) a layer of light harvesting rods electrically coupled to the first electrode, each of the light harvesting rods comprising a polymer of Formula I: X.sup.1.paren open-st.X.sup.m+1).sub.m (I) wherein m is at least 1, and may be from two, three or four to 20 or more; X.sup.1 is a charge separation group (and preferably a porphyrinic macrocycle, which may be one ligand of a double-decker sandwich compound) having an excited-state of energy equal to or lower than that of X.sup.2, and X.sup.2 through X.sup.m+1 are chromophores (and again are preferably porphyrinic macrocycles).

  17. Rainwater Harvesting in San Francisco Schools

    E-Print Network [OSTI]

    Bintliff, Jacob M.

    2011-01-01

    and planned rain- water harvesting (RWH) systems areadopted the Rain- water Harvesting Guidelines in ear- lywater management education was matched with a de- SFUSD Rainwater Harvesting

  18. Dielectric Elastomers for Actuation and Energy Harvesting

    E-Print Network [OSTI]

    Brochu, Paul

    2012-01-01

    during testing. Right: Simple energy harvesting circuit. S1during testing. Right: Simple energy harvesting circuit. S1Capacitive energy harvesting results and (right) schematic

  19. Cost-Effective Fabrication Routes for the Production of Quantum Well Structures and Recovery of Waste Heat from Heavy Duty Trucks

    SciTech Connect (OSTI)

    Willigan, Rhonda

    2009-09-30

    The primary objectives of Phase I were: (a) carry out cost, performance and system level models, (b) quantify the cost benefits of cathodic arc and heterogeneous nanocomposites over sputtered material, (c) evaluate the expected power output of the proposed thermoelectric materials and predict the efficiency and power output of an integrated TE module, (d) define market acceptance criteria by engaging Caterpillar's truck OEMs, potential customers and dealers and identify high-level criteria for a waste heat thermoelectric generator (TEG), (e) identify potential TEG concepts, and (f) establish cost/kWatt targets as well as a breakdown of subsystem component cost targets for the commercially viable TEG.

  20. Mechanical Harvesting of Corn. 

    E-Print Network [OSTI]

    Sorenson, J. W. (Jerome Wallace); Smith, H. P. (Harris Pearson)

    1948-01-01

    , the field results of this study can be divided intc, three parts: (I) plant characteristics prior to harvest, (2) machine performance and (3) effect of machine on the corn ears. Review of Literature According to Shedd (7), a few corn picking machines... and yields are shown as shelled corn. Preharvest Plant Data Manufacturers of corn harvesting machinery have found tha: corn growers of the Southwest prefer a machine that snaps the ears from the stalks without removing the husks. They have nlw Figure 7...

  1. Vibration Harvesting using Electromagnetic Transduction

    E-Print Network [OSTI]

    Waterbury, Andrew

    2011-01-01

    management IC for energy-scavenged Wireless Sensor Nodes,”of ambient RF energy harvesting wireless sensor networks,”a source of harvested energy for wireless sensor nodes [4][

  2. Vibration Harvesting using Electromagnetic Transduction

    E-Print Network [OSTI]

    Waterbury, Andrew

    2011-01-01

    efficiency wind-flow energy harvester using micro turbine,”and large wind turbines convert the kinetic energy of wind

  3. Vibration Harvesting using Electromagnetic Transduction

    E-Print Network [OSTI]

    Waterbury, Andrew

    2011-01-01

    Journal of Microelectromechanical Systems, vol. 18, no. 2,Capability,” Microelectromechanical Systems, Journal of,Harvesting,” Microelectromechanical Systems, Journal of, no.

  4. Vibration Harvesting using Electromagnetic Transduction

    E-Print Network [OSTI]

    Waterbury, Andrew

    2011-01-01

    Prism,” Journal of Microelectromechanical Systems, vol. 18,Capability,” Microelectromechanical Systems, Journal of,Energy Harvesting,” Microelectromechanical Systems, Journal

  5. UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation into the Viability of a Waste Heat Powered Greenhouse

    E-Print Network [OSTI]

    by saving electricity and producing crops that will be grown year-round. Environmentally, the energy savings. This is potentially an abundant source of heat energy and should be retained for use to ensure and further promote sustainability on campus. This investigation assumes the primary source of heat energy is steam supplied from

  6. Rainwater Harvesting: Landscape Methods 

    E-Print Network [OSTI]

    Lesikar, Bruce J.; Mechell, Justin; Alexander, Rachel

    2008-05-30

    urban flooding, and erodes 2 the banks of rivers and streams. Urban runoff also carries many pollutants, including sediments, fer- tilizers, pesticides and fecal coliform bacteria into streams and rivers. Harvesting Methods Rainwater capture.... A soil storage and infiltration sys- tem decreases the volume of runoff, contains po- tential pollutants and increases the amount of water entering the ground to recharge our groundwater systems. A soil storage and infiltration system can be in...

  7. Woven heat exchanger

    DOE Patents [OSTI]

    Piscitella, R.R.

    1984-07-16

    This invention relates to a heat exchanger for waste heat recovery from high temperature industrial exhaust streams. In a woven ceramic heat exchanger using the basic tube-in-shell design, each heat exchanger consisting of tube sheets and tube, is woven separately. Individual heat exchangers are assembled in cross-flow configuration. Each heat exchanger is woven from high temperature ceramic fiber, the warp is continuous from tube to tube sheet providing a smooth transition and unitized construction.

  8. Performance Modeling of Transmission Schedulers for Sensor Networks Capable of Energy Harvesting

    E-Print Network [OSTI]

    Sikdar, Biplab

    Performance Modeling of Transmission Schedulers for Sensor Networks Capable of Energy Harvesting transmit is formulated as a Markov Decision Process (MDP) and the performance of the transmission policy such as vibration and motion, light, and heat. However, to improve the performance of energy harvesting WSNs

  9. BUOYANCY FLOW IN FRACTURES INTERSECTING A NUCLEAR WASTE REPOSITORY

    E-Print Network [OSTI]

    Wang, J.S.Y.

    2010-01-01

    11112 "Heat Transfer to Nuclear Waste Disposal", ASME WinterIN FPACTUHES INTERSECTING A NUCLEAR WASTE REPOSITORY J.S.Y.Heat released from a nuclear waste repository in a

  10. Heating System Basics | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    using ducts. Boilers heat water, providing either hot water or steam for heating. Wood and Pellet Heating Provides a way to heat a building using biomass or waste sources....

  11. A Thermoelectric Generator with an Intermediate Heat Exchanger...

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

    A Thermoelectric Generator with an Intermediate Heat Exchanger for Automotive Waste Heat Recovery System A Thermoelectric Generator with an Intermediate Heat Exchanger for...

  12. Charging-free electrochemical system for harvesting low-grade thermal energy

    E-Print Network [OSTI]

    Yang, Yuan

    Efficient and low-cost systems are needed to harvest the tremendous amount of energy stored in low-grade heat sources (<100 °C). Thermally regenerative electrochemical cycle (TREC) is an attractive approach which uses the ...

  13. A batteryless thermoelectric energy-harvesting interface circuit with 35mV startup voltage

    E-Print Network [OSTI]

    Ramadass, Yogesh Kumar

    A batteryless thermoelectric energy-harvesting interface circuit to extract electrical energy from human body heat is implemented in a 0.35 ?m [mu m] CMOS process. A mechanically assisted startup circuit enables operation ...

  14. Low-Cost Microchannel Heat Exchanger

    Office of Environmental Management (EM)

    corrosion resistant alloys construction Oil and gas platform processes, separators, LNG processing, chillers, heat pumps, fuels reforming, waste heat power systems and...

  15. Harvesting Machine Census 1999 & 2001

    E-Print Network [OSTI]

    1 Harvesting Machine Census 1999 & 2001 231 Corstorphine Road Edinburgh EH12 7AT www.forestry.gov.uk FCTN001 SUMMARY This Technical Note contains information on the 1999 and 2001 harvesting machine machines, converted forwarders, etc., account for the remaining machines. In the 2001 census, 65

  16. From rainwater harvesting to agrohortiforestry

    E-Print Network [OSTI]

    Zeng, Ning

    From rainwater harvesting to agrohortiforestry BAIF Institute for Rural Development- Karnataka;#12;#12;#12;#12;#12;#12;#12;#12;#12;Rainwater Club, Bangalore #12;#12;#12;· BAIF Development Research Foundation · An NGO working in 8 states-proofing of agriculture · 14 lakh trees. · More than 20 crore lits. of water harvested. · >165 lakh in the PO. · > 15 lakh

  17. Rainwater Harvesting in San Francisco Schools

    E-Print Network [OSTI]

    Bintliff, Jacob M.

    2011-01-01

    et al. Applied Rainwater Harvesting Education: An AustralianNatasha et al. Rainwater Harvesting for Non-Potable Use inPorter, Dana et al. Rainwater Harvesting. American Rainwater

  18. Rainwater Harvesting in San Francisco Schools

    E-Print Network [OSTI]

    Bintliff, Jacob M.

    2011-01-01

    installed and planned rain- water harvesting (RWH) systemsFour of these schools have rain- water barrel systems. Asthe district adopted the Rain- water Harvesting Guidelines

  19. Heat Pump Strategies and Payoffs 

    E-Print Network [OSTI]

    Gilbert, J. S.

    1982-01-01

    (Evaporator) Heat Source Heat Pump Turbine Compressor Compressed Vapor Pump IZl:G1 Type IV - Rankine Cycle (Waste Heat Driven) Heat Sink (Condenser) Fig. 3 Basic Heat Pump Categories 324 ESL-IE-82-04-66 Proceedings from the Fourth Industrial... payback. 500 450 400 Leas Than G:" ~ 2! 350 2-Vear Payback .a e 300 !. E ~ 250 Simple Waste Heat Boller 200 100 1.-........_-'-_.1.---1"---.1._..&0.._1.---'-_'-__ o 10 20 30 40 50 60 70 80 Heat Removed (%) 82291 Fig. 4 Heat...

  20. Vitrification of waste

    DOE Patents [OSTI]

    Wicks, George G. (Aiken, SC)

    1999-01-01

    A method for encapsulating and immobilizing waste for disposal. Waste, preferably, biologically, chemically and radioactively hazardous, and especially electronic wastes, such as circuit boards, are placed in a crucible and heated by microwaves to a temperature in the range of approximately 300.degree. C. to 800.degree. C. to incinerate organic materials, then heated further to a temperature in the range of approximately 1100.degree. C. to 1400.degree. C. at which temperature glass formers present in the waste will cause it to vitrify. Glass formers, such as borosilicate glass, quartz or fiberglass can be added at the start of the process to increase the silicate concentration sufficiently for vitrification.

  1. Vitrification of waste

    DOE Patents [OSTI]

    Wicks, G.G.

    1999-04-06

    A method is described for encapsulating and immobilizing waste for disposal. Waste, preferably, biologically, chemically and radioactively hazardous, and especially electronic wastes, such as circuit boards, are placed in a crucible and heated by microwaves to a temperature in the range of approximately 300 C to 800 C to incinerate organic materials, then heated further to a temperature in the range of approximately 1100 C to 1400 C at which temperature glass formers present in the waste will cause it to vitrify. Glass formers, such as borosilicate glass, quartz or fiberglass can be added at the start of the process to increase the silicate concentration sufficiently for vitrification.

  2. Liquid heat capacity lasers

    DOE Patents [OSTI]

    Comaskey, Brian J. (Walnut Creek, CA); Scheibner, Karl F. (Tracy, CA); Ault, Earl R. (Livermore, CA)

    2007-05-01

    The heat capacity laser concept is extended to systems in which the heat capacity lasing media is a liquid. The laser active liquid is circulated from a reservoir (where the bulk of the media and hence waste heat resides) through a channel so configured for both optical pumping of the media for gain and for light amplification from the resulting gain.

  3. Waste remediation

    DOE Patents [OSTI]

    Halas, Nancy J.; Nordlander, Peter; Neumann, Oara

    2015-12-29

    A system including a steam generation system and a chamber. The steam generation system includes a complex and the steam generation system is configured to receive water, concentrate electromagnetic (EM) radiation received from an EM radiation source, apply the EM radiation to the complex, where the complex absorbs the EM radiation to generate heat, and transform, using the heat generated by the complex, the water to steam. The chamber is configured to receive the steam and an object, wherein the object is of medical waste, medical equipment, fabric, and fecal matter.

  4. Energy Harvesting Optimization

    E-Print Network [OSTI]

    Lavaei, Javad

    -user is a set of sensors that can monitor and diagnose body statistics (heart rate, body are still kinetic, solar, wind, and heat. The technology, with regards to kinetic the mainspring and use internal magnet movements to power watch hands. Mechanical

  5. Piezoelectric MEMS for energy harvesting

    E-Print Network [OSTI]

    Kim, Sang-Gook

    Piezoelectric microelectromechanical systems (MEMS) have been proven to be an attractive technology for harvesting small magnitudes of energy from ambient vibrations. This technology promises to eliminate the need for ...

  6. date 04/2009 Waste Management

    E-Print Network [OSTI]

    Columbia University

    fibres #12;date 04/2009 Waste Incineration Plant at Munich North ­ Using Combined Heat and Power production of electrical power · 792,351 MWh production of heat for district heating · 238,000 t reduction

  7. Challenges in Industrial Heat Recovery 

    E-Print Network [OSTI]

    Dafft, T.

    2007-01-01

    This presentation will address several completed and working projects involving waste heat recovery in a chemical plant. Specific examples will be shown and some of the challenges to successful implementation and operation of heat recovery projects...

  8. Waste Steam Recovery 

    E-Print Network [OSTI]

    Kleinfeld, J. M.

    1979-01-01

    An examination has been made of the recovery of waste steam by three techniques: direct heat exchange to process, mechanical compression, and thermocompression. Near atmospheric steam sources were considered, but the techniques developed are equally...

  9. Picosecond Kinetics of Light Harvesting and Photoprotective Quenching in Wild-Type and Mutant Phycobilisomes Isolated from the

    E-Print Network [OSTI]

    van Stokkum, Ivo

    Picosecond Kinetics of Light Harvesting and Photoprotective Quenching in Wild-Type and Mutant In high light conditions, cyanobacteria dissipate excess absorbed energy as heat in the light-harvesting of water and the release of oxygen. The central parts of these photosystems, i.e., the reaction centers

  10. Harvest Aids in Sorghum 

    E-Print Network [OSTI]

    Stichler, Charles; Livingston, Stephen

    2003-03-11

    moisture can harbor molds and bacteria, causing heating or ?souring? and a loss of quality. If the moist grain is stored, the risk increases for aflatoxin, which prevents interna- tional trade. Sorghum that meets the moisture specifications commands higher...- oped black layer that is clearly visible. Kernels 2, 3 and 4 were taken in descending order. Kernel 4 came from the middle of the head and shows the first external signs of the dark layer formation. Kernel 4 shows almost no signs of shrinking and...

  11. Method and apparatus for conserving waste energy

    SciTech Connect (OSTI)

    Eldifrawi, A.A.

    1981-05-12

    A method and apparatus are disclosed for conserving waste energy by transferring waste heat from an internal combustion engine, solar energy or from any other source of waste heat energy of a temperature of 200/sup 0/F or above, to a carrier liquid includes conveying the heated carrier liquid to a heat exchanger, pressurizing a refrigerant by heating the refrigerant with heat energy extracted from the heated carrier liquid and performing work with the pressurized refrigerant. The preferred embodiments include a modified Rankine-Sterling cycle engine and a dual absorption generator system.

  12. Design Considerations for Solar Energy Harvesting Wireless Embedded Systems

    E-Print Network [OSTI]

    Raghunathan, Vijay; Kansal, Aman; Hsu, Jason; Friedman, Jonathan K; Srivastava, Mani B

    2005-01-01

    sensor node using our solar energy harvesting module. VI. Csensor networks using solar energy harvesting. II. R ELATEDities are now feasible, solar energy harvesting through

  13. Feasibility of using nanoporous materials in water harvesting

    E-Print Network [OSTI]

    Chow, Brian Justin

    2010-01-01

    Possible Role in Water Harvesting Experiment: AtmosphericNANOPOROUS MATERIALS IN WATER HARVESTING A thesis submittedNANOPOROUS MATERIALS IN WATER HARVESTING by Brian Justin

  14. Final Report: Assessment of Combined Heat and Power Premium Power Applications in California

    E-Print Network [OSTI]

    Norwood, Zack

    2010-01-01

    engine technology with heat recovery, but they do providegas and jacket water heat recovery attached to over 300 tonsgenerator with waste heat recovery at a facility with large

  15. Factors Affecting the Performance of Mechanical Cotton Harvesters (Stripper Type), Extractors and Cleaners. 

    E-Print Network [OSTI]

    Jones, D. L. (Don L.); Killough, D. T. (David Thornton); Smith, H. P. (Harris Pearson)

    1946-01-01

    . There was no significant difference in the percentage of burs and waste removed from machine-stripped cotton and hand-snapped cotton. -4t College Station hand-snapped and machine-stripped cotton averaged approximately 1+ grades lower than hand-picked cotton, while... of the Texas Station Cotton Extractor .................. ,, Waste Removed in Cleaning Machine-stripped and Hand-snapped ............................................. Seed Cottow 8 Grade of Harvested Cottons ................................... 7 Staple...

  16. Geothermal Heat Pumps are Scoring High Marks

    SciTech Connect (OSTI)

    2000-08-01

    Geothermal Energy Program Office of Geothermal and Wind Technologies Geothermal Heat Pumps are Scoring High Marks Geothermal heat pumps, one of the clean energy technology stars Geothermal heat pumps (GHPs) are one of the most cost-effective heating, cooling, and water heating systems available for both residential and commercial buildings. GHPs extract heat from the ground during the heating season and discharge waste heat to the ground during the cooling season. The U.S. Environmental Protecti

  17. Aluminum Reactions and Problems in Municipal Solid Waste Landfills

    E-Print Network [OSTI]

    problematic for landfill operations by generating undesirable heat, liquid leachate, and gases reactions. Another source of water in a MSW landfill is leachate recirculation, which is not recommended: Solid wastes; Aluminum; Chemicals; Waste disposal; Landfills. Author keywords: Solid waste; Leachate

  18. Assessment of rainwater harvesting in Northern Ghana

    E-Print Network [OSTI]

    Barnes, David Allen

    2009-01-01

    This study assesses the current state of rainwater harvesting in the Northern Region of Ghana and makes recommendations regarding if and how rainwater harvesting could be used to address Pure Home Water's goal of reaching ...

  19. Thermal Storage with Ice Harvesting Systems 

    E-Print Network [OSTI]

    Knebel, D. E.

    1986-01-01

    Application of Harvesting Ice Storage Systems. Thermal storage systems are becoming widely accepted techniques for utility load management. This paper discusses the principles of ice harvesting equipment and their application to the multi...

  20. Harvesting energy from non-ideal vibrations

    E-Print Network [OSTI]

    Chang, Samuel C

    2013-01-01

    Energy harvesting has drawn significant interest for its potential to power autonomous low-power applications. Vibration energy harvesting is particularly well suited to industrial condition sensing, environmental monitoring ...

  1. Ultra wide-bandwidth micro energy harvester

    E-Print Network [OSTI]

    Hajati, Arman

    2011-01-01

    An ultra wide-bandwidth resonating thin film PZT MEMS energy harvester has been designed, modeled, fabricated and tested. It harvests energy from parasitic ambient vibration at a wide range of amplitude and frequency via ...

  2. New Hampshire Timber Harvesting Laws

    E-Print Network [OSTI]

    New Hampshire, University of

    Guide to New Hampshire Timber Harvesting Laws #12;ACKNOWLEDGMENTS This publication is an updated Hampshire Cooperative Extension 131 Main Street, Nesmith Hall Durham, New Hampshire 03824 http Hampshire Timberland Owners Association 54 Portsmouth Street Concord, New Hampshire 03301 www.nhtoa.org UNH

  3. Harvesting Energy from Wastewater Treatment

    E-Print Network [OSTI]

    Harvesting Energy from Wastewater Treatment Bruce Logan Penn State University #12;Energy Costs? 5 #12;Energy content of Wastewaters · Electricity "lost" to water and wastewater treatment= 0.6 quad wastewater (primary clarifier effluent) Arrows indicate wastewater addition P= 28 mW/m2 (PEM/Nafion) =146 m

  4. Energy Harvesting Diamond Channel with Energy Cooperation

    E-Print Network [OSTI]

    Ulukus, Sennur

    Energy Harvesting Diamond Channel with Energy Cooperation Berk Gurakan Sennur Ulukus Department@umd.edu Abstract--We consider the energy harvesting diamond channel, where the source and two relays harvest energy the option of wirelessly transferring some of its energy to the relays via energy cooperation. We find

  5. Energy Harvesting Communications with Continuous Energy Arrivals

    E-Print Network [OSTI]

    Yener, Aylin

    Energy Harvesting Communications with Continuous Energy Arrivals Burak Varan Kaya Tutuncuoglu Aylin--This work considers an energy harvesting transmit- ter that gathers a continuous flow of energy from intermittent sources, thus relaxing the modeling assumption of discrete amounts of harvested energy present

  6. Communicating with Energy Harvesting Transmitters and Receivers

    E-Print Network [OSTI]

    Yener, Aylin

    Communicating with Energy Harvesting Transmitters and Receivers Kaya Tutuncuoglu Aylin Yener a general framework for utility maximization of a wireless network with energy harvesting nodes. The focus is on applying this framework to the single-link problem with an energy harvesting transmitter and an energy

  7. Waste Management in Dsseldorf Combination of separate collection,

    E-Print Network [OSTI]

    Columbia University

    Incinerator goes to heating / power station Production of heat and electricity Waste Incineration Plant and for energetical use (www.swd-ag.de) Biomass heating- and power-station Düsseldorf-Garath #12;,,Too goodWaste Management in Düsseldorf Combination of separate collection, recycling and waste

  8. Hybrid Heat Pump Design and Application 

    E-Print Network [OSTI]

    Wagner, J. R.; Koebberman, W. F.

    1985-01-01

    The Hybrid Heat Pump (HHP) converts industrial waste heat into process steam. Waste heat at temperatures as low as approximately 200°F can be used. Steam output covers a range between 12,000 Ib/h and 50,000 Ib/h, depending on the application...

  9. Combined Heat and Power Plant Steam Turbine

    E-Print Network [OSTI]

    Rose, Michael R.

    waste heat) Gas Turbine University Substation High Pressure Natural Gas Campus Electric Load SouthernCombined Heat and Power Plant Steam Turbine Steam Turbine Chiller Campus Heat Load Steam (recovered Generator Heat Recovery Alternative Uses: 1. Campus heating load 2. Steam turbine chiller to campus cooling

  10. Energy harvesting devices for harvesting energy from terahertz electromagnetic radiation

    DOE Patents [OSTI]

    Novack, Steven D.; Kotter, Dale K.; Pinhero, Patrick J.

    2012-10-09

    Methods, devices and systems for harvesting energy from electromagnetic radiation are provided including harvesting energy from electromagnetic radiation. In one embodiment, a device includes a substrate and one or more resonance elements disposed in or on the substrate. The resonance elements are configured to have a resonant frequency, for example, in at least one of the infrared, near-infrared and visible light spectra. A layer of conductive material may be disposed over a portion of the substrate to form a ground plane. An optical resonance gap or stand-off layer may be formed between the resonance elements and the ground plane. The optical resonance gap extends a distance between the resonance elements and the layer of conductive material approximately one-quarter wavelength of a wavelength of the at least one resonance element's resonant frequency. At least one energy transfer element may be associated with the at least one resonance element.

  11. Independent Oversight Activity Report, Hanford Waste Treatment...

    Energy Savers [EERE]

    and Immobilization Plant Low Activity Waste Facility Heating, Ventilation, and Air Conditioning Systems Hazards Analysis Activities HIAR-WTP-2014-01-27 This Independent...

  12. Effect of Heat and Electricity Storage and Reliability on Microgrid Viability: A Study of Commercial Buildings in California and New York States

    E-Print Network [OSTI]

    Stadler, Michael

    2009-01-01

    water and space heating loads that can be met by direct natural gas combustion, waste heat recovery,

  13. Engineering, Nutrient Removal, and Feedstock Conversion Evaluations of Four Corn Stover Harvest Scenarios

    SciTech Connect (OSTI)

    Reed L. Hoskinson; Douglas L. Karlen; Stuart J. Birrell; Corey W. Radtke; W.W. Wilhelm

    2007-02-01

    Crop residue has been identified as a near-term source of biomass for renewable fuel, heat, power, chemicals and other bio-materials. Replicated plots were established in a corn (Zea mays L.) field near Ames, IA to evaluate four harvest scenarios (low cut, high-cut top, high-cut bottom, and normal cut). A prototype one-pass harvest system was used to collect the residue samples. High-cut top and high-cut bottom samples were obtained from the same plots in two separate operations. Chemical composition, dilute acid pretreatment response, ethanol conversion efficiency and gasification parameters for each scenario were determined. Mean grain yield (10.1 Mg ha-1 dry weight) was representative of the area. The four harvest scenarios removed 6.7, 4.9, 1.7, and 5.1 Mg ha-1 of dry matter. Expressed as harvest indices (HI) the values were 0.60 for low cut, 0.66 for normal cut, and 0.61 for the total high-cut (top + bottom) scenarios, which are probably realistic for machine harvest and current hybrids. The macro-nutrient replacement value for the normal harvest scenario under our conditions was $57.36 ha-1 or $11.27 Mg-1. Harvesting stalk bottoms increased the water content, the risk of combine damage, the transportation costs, and left insufficient soil cover, while also producing a problematic feedstock. Harvesting stover at current combine height (~40 cm) would be best for farmers and ethanol producers because of better harvest speed and efficiency as well as the quality of the ethanol feedstock.

  14. Heating, Ventilation, and Air Conditioning Design

    E-Print Network [OSTI]

    Heating, Ventilation, and Air Conditioning Design Strategy for a Hot-Humid Production Builder P% postconsumer waste #12;iii Heating, Ventilation, and Air Conditioning Design Strategy for a Hot

  15. Heat Recovery Boilers for Process Applications 

    E-Print Network [OSTI]

    Ganapathy, V.; Rentz, J.; Flanagan, D.

    1985-01-01

    Heat recovery boilers are widely used in process plants for recovering energy from various waste gas streams, either from the consideration of process or of economy. Sulfuric, as well as nitric, acid plant heat recovery boilers are examples...

  16. Reducing Waste and Harvesting Energy This Halloween | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested PartiesBuildingBudgetFinancial Opportunities » Pastams

  17. Post-Harvest Marketing Alternatives 

    E-Print Network [OSTI]

    McCorkle, Dean; Welch, Mark

    2009-02-04

    , the producer stands to lose two ways. First, the price received for the grain when it is sold is lower than it was at harvest. Second- ly, the producer must pay the storage costs. Advantages of storing grain Extends the marketing season? Can take advantage... of higher prices if ? they occur Can take advantage of strengthening ? basis if it occurs Disadvantages of storing grain Prices may not increase enough to ? cover storage costs Basis may weaken? Stored grain can lose quality? Producer is unprotected...

  18. Industrial and Commercial Heat Pump Applications in the United States 

    E-Print Network [OSTI]

    Niess, R. C.

    1986-01-01

    The energy crisis of 1973 accelerated the development of large-scale heat pumps in the United States. Since that time, the commercial, institutional, and industrial applications of heat pumps for waste heat recovery ...

  19. Harvesting RNA from 3-D Acinar Cultures 1) Aspirate the media from the wells for harvesting.

    E-Print Network [OSTI]

    Harvesting RNA from 3-D Acinar Cultures 1) Aspirate the media from the wells for harvesting. 2) Add for 15 minutes at room temperature with approximately 20 l DEPC water (for 4 wells of an 8 well chamber

  20. Apparatus and method for harvesting woody plantations

    DOE Patents [OSTI]

    Eggen, David L. (Rte. 1, Box 257, Moose Lake, MN 55767)

    1988-11-15

    A tree harvester for harvesting felled trees includes a wheel mounted wood chipper which moves toward the butt ends of the tree stems to be processed. The harvester includes a plurality of rotating alignment discs in front of the chipper. These discs align the tree stems to be processed with the mouth of the chipper. A chipper infeed cylinder is rotatably mounted between the discs and the front end of the chipper, and lifts the tree stem butts up from the ground into alignment with the chipper inlet port. The chips discharge from the chipper and go into a chip hopper which moves with the tree harvester.

  1. Energy & Sustainable Chemistry: Light Harvesting & Biocatalysis...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    & Sustainable Chemistry: Light Harvesting & Biocatalysis November 30, 1999 at http:www.rle.mit.eduexcitonicswp-contentuploads201408Olsen-efrc-video-highlight-artf.chloro..m...

  2. Apparatus and method for harvesting woody plantations

    DOE Patents [OSTI]

    Eggen, D.L.

    1988-11-15

    A tree harvester for harvesting felled trees includes a wheel mounted wood chipper which moves toward the butt ends of the tree stems to be processed. The harvester includes a plurality of rotating alignment discs in front of the chipper. These discs align the tree stems to be processed with the mouth of the chipper. A chipper infeed cylinder is rotatably mounted between the discs and the front end of the chipper, and lifts the tree stem butts up from the ground into alignment with the chipper inlet port. The chips discharge from the chipper and go into a chip hopper which moves with the tree harvester. 8 figs.

  3. Natural convection in high heat flux tanks at the Hanford Waste Site / [by] Mark van der Helm and Mujid S. Kazimi

    E-Print Network [OSTI]

    Van der Helm, Mark Johan, 1972-

    1996-01-01

    A study was carried out on the potential for natural convection and the effect of natural convection in a High Heat Flux Tank, Tank 241-C-106, at the Hanford Reservation. To determine the existence of natural convection, ...

  4. Harvesting Energy from Abundant, Low Quality Sources of Heat - Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-Dose Low34OctoberK

  5. Geothermal Technology Breakthrough in Alaska: Harvesting Heat below Boiling

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof Energy Services »Information1 GeothermalTemperatures | Department of

  6. Scheduling in Energy Harvesting Networks Energy Cooperation in Energy Harvesting Networks

    E-Print Network [OSTI]

    Ulukus, Sennur

    12 Emax EmaxEmaxEmax E3E0 E2E1 · Second: Allow transfer of energy one by one to the right onlyScheduling in Energy Harvesting Networks and Energy Cooperation in Energy Harvesting Networks and Information Theory for Energy Harvesting Communications S¸ennur Ulukus¸ Department of ECE University

  7. Low Level Heat Recovery Technology 

    E-Print Network [OSTI]

    O'Brien, W. J.

    1982-01-01

    With today's high fuel prices, energy conservation projects to utilize low level waste heat have become more attractive. Exxon Chemical Company Central Engineering has been developing guidelines and assessing the potential for application of low...

  8. An Information Dependant Computer Program for Engine Exhaust Heat Recovery for Heating

    Broader source: Energy.gov [DOE]

    A computer program was developed to help engineers at rural Alaskan village power plants to quickly evaluate how to use exhaust waste heat from individual diesel power plants.

  9. Heat pipe array heat exchanger

    DOE Patents [OSTI]

    Reimann, Robert C. (Lafayette, NY)

    1987-08-25

    A heat pipe arrangement for exchanging heat between two different temperature fluids. The heat pipe arrangement is in a ounterflow relationship to increase the efficiency of the coupling of the heat from a heat source to a heat sink.

  10. Milestone Report #2: Direct Evaporator Leak and Flammability Analysis Modifications and Optimization of the Organic Rankine Cycle to Improve the Recovery of Waste Heat

    SciTech Connect (OSTI)

    Donna Post Guillen

    2013-09-01

    The direct evaporator is a simplified heat exchange system for an Organic Rankine Cycle (ORC) that generates electricity from a gas turbine exhaust stream. Typically, the heat of the exhaust stream is transferred indirectly to the ORC by means of an intermediate thermal oil loop. In this project, the goal is to design a direct evaporator where the working fluid is evaporated in the exhaust gas heat exchanger. By eliminating one of the heat exchangers and the intermediate oil loop, the overall ORC system cost can be reduced by approximately 15%. However, placing a heat exchanger operating with a flammable hydrocarbon working fluid directly in the hot exhaust gas stream presents potential safety risks. The purpose of the analyses presented in this report is to assess the flammability of the selected working fluid in the hot exhaust gas stream stemming from a potential leak in the evaporator. Ignition delay time for cyclopentane at temperatures and pressure corresponding to direct evaporator operation was obtained for several equivalence ratios. Results of a computational fluid dynamic analysis of a pinhole leak scenario are given.

  11. Methodology Water Harvesting Measurements with Biomimetic

    E-Print Network [OSTI]

    Barthelat, Francois

    Methodology Water Harvesting Measurements with Biomimetic Surfaces Zi Jun Wang and Prof. Anne parameters that affect the water harvesting efficiencies of different surfaces · Optimize the experimental Objectives Water is one of the most essential natural resources. The easy accessibility of water

  12. Energy Harvesting Wireless Communications-Part I

    E-Print Network [OSTI]

    Ulukus, Sennur

    #12;Motivation Energy efficient communication means something different than it did a decade ago-medical-devices-controlled-wireless-technology-nanotechnology/ (bottom) http://scitechdaily.com/smart-pills-will-track-patients-from-the-inside-out/ Energy Harvesting;Motivation New Wireless Network Design Challenge: A set of energy feasibility constraints based on harvests

  13. Information Capacity of Energy Harvesting Sensor Nodes

    E-Print Network [OSTI]

    Sharma, Vinod

    Information Capacity of Energy Harvesting Sensor Nodes R Rajesh CABS, DRDO Bangalore, India Email by which the harvested energy is used. We find its Shannon capacity when it is transmitting its observations over an AWGN channel and show that the capacity achieving energy management policies are related

  14. Energy Cooperation in Energy Harvesting Wireless Communications

    E-Print Network [OSTI]

    Ulukus, Sennur

    Energy Cooperation in Energy Harvesting Wireless Communications Berk Gurakan1 , Omur Ozel1 , Jing the broadcast nature of the wireless network. In this work, we anticipate an energy harvesting network where transfer a portion of its energy to the relay node as in Fig. 1 through a separate wireless energy transfer

  15. Solar/Electromagnetic Energy Harvesting and Wireless

    E-Print Network [OSTI]

    Tentzeris, Manos

    INVITED P A P E R Solar/Electromagnetic Energy Harvesting and Wireless Power Transmission This paper reviews numerous existing efforts and solutions in the field of solar and electromagnetic energy of solar/electromagnetic energy harvest- ing and wireless power transmission. More specifically, the paper

  16. Stump Harvesting: Interim Guidance on

    E-Print Network [OSTI]

    to supply biomass for heat and power generation in the UK and attention is now turning to the potential 10 Combined Hazard Assessment 11 OTHER ISSUES 11 Restocking practice 11 Biodiversity

  17. Industrial Heat Pumps- A Reexamination in Light of Current Energy Trends 

    E-Print Network [OSTI]

    Lewis, N.; Simon, M.; Terry, S.; Leach, J.

    2009-01-01

    Heat pumps have been used for nearly one hundred years mostly providing heating and cooling for homes and residential settings. However, industrial heat pumps are also used and may be driven by waste heat streams from the manufacturing facility...

  18. Analysis of Energy-Rescued Potential of a Hot Water Heating Network 

    E-Print Network [OSTI]

    Han, J.; Wang, D.; Tian, G.

    2006-01-01

    and electricity factory in Jinan, we analyze the energy waste caused by hydraulic power maladjustment and improper control of heating temperature in heating season. We conclude that proper adjustment of the heating network and controlling the heating supply...

  19. International Conference on Water Harvesting, Storage and Conservation (WHSC-2009)

    E-Print Network [OSTI]

    Srivastava, Kumar Vaibhav

    International Conference on Water ­ Harvesting, Storage and Conservation (WHSC-2009) 23rd ­ 25th International Conference on Water ­ Harvesting, Storage and Conservation (WHSC- 2009) was the first guidelines and implementing mechanisms for water harvesting, storage and conservation. The main objectives

  20. Transmission Policies for Asymmetric Interference Channels with Energy Harvesting Nodes

    E-Print Network [OSTI]

    Yener, Aylin

    Transmission Policies for Asymmetric Interference Channels with Energy Harvesting Nodes Kaya power policies to maximize sum capacity in an energy harvesting setting. It is shown derive optimal power allocation policies for interference channels comprised of energy harvesting

  1. TECHNICAL REPORT A-82-1 SIMULATION FOR HARVESTING

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Research Program REPORT DATE February 1982 NUMBER OF PAGES SECURITY CLASS. (olthle report) Unclassified Unclassified SECURITY CLASSIFICATION OF THIS PAGE ("""" Dela Enlered) I #12;Unclassified SECURITY (grid). The harvesting subroutine directs the harvesting procedure. The harvester (Aqua-Trio Equipment

  2. Final Report Waste Incineration

    E-Print Network [OSTI]

    methods have been evaluated, and with the information obtained, it seems that the price for treatment of the waste streams, or as fuel in an incineration facility generating heat and pos- sibly electricity for export that is economical and technical efficient. The aim of this project is to make a long

  3. An Analysis of the Use of Fluidized-Bed Heat Exchangers for Heat Recovery 

    E-Print Network [OSTI]

    Vogel, G. J.; Grogan, P. J.

    1980-01-01

    The principles of fluidized-bed operation and the factors affecting the performance of a fluidized-bed waste heat boiler (FBWHB) are discussed in detail. Factors included in the discussion are bed temperature and pressure, heat transfer coefficient...

  4. January 2007 (text up-dated January 2008) Don't waste waste it is a resource

    E-Print Network [OSTI]

    Columbia University

    . Further increases in energy efficiency can contribute to the further development of district heating and of district heating and cooling in Europe offering higher energy efficiency and higher security of supplyJanuary 2007 (text up-dated January 2008) Don't waste waste ­ it is a resource Waste is a resource

  5. The water economy of harvest mice from xeric and mesic environments

    E-Print Network [OSTI]

    Armitage, Kenneth

    1976-01-01

    of climate and vegetation on harvest mice suggest that the factors of tem­ perature, humidity, and available water may have a differential effect on popula­ tions of mice from Douglas and Haskell counties. One might expect variation in the physiology... of heat and water regula­ tion between the two populations. M A T E R I A L A N D M E T H O D S Western harvest mice were trapped live in Douglas and Johnson counties within 20 miles of Lawrence, Kansas, and in Haskell County between Sublette...

  6. Five Harvesting Technologies are Making Biofuels More Competitive...

    Energy Savers [EERE]

    Five Harvesting Technologies are Making Biofuels More Competitive in the Marketplace Five Harvesting Technologies are Making Biofuels More Competitive in the Marketplace March 17,...

  7. Design Considerations for Solar Energy Harvesting Wireless Embedded Systems

    E-Print Network [OSTI]

    Raghunathan, Vijay; Kansal, Aman; Hsu, Jason; Friedman, Jonathan K; Srivastava, Mani B

    2005-01-01

    which arise in the design of solar energy harvesting,IPSN), April 2005. Design Considerations for Solar Energythat are involved in the design of a solar energy harvesting

  8. A Magnetomechanical Thermal Energy Harvester With A Reversible Liquid Interface

    E-Print Network [OSTI]

    He, Hong

    2012-01-01

    1.1 Thermal energy harvester Wireless sensor networks (WSN)mechanisms for energy harvesting in wireless sensors involvecollect sufficient energy to power wireless sensors. Thermal

  9. Design Considerations for Solar Energy Harvesting Wireless Embedded Systems

    E-Print Network [OSTI]

    Raghunathan, Vijay; Kansal, Aman; Hsu, Jason; Friedman, Jonathan K; Srivastava, Mani B

    2005-01-01

    M. Srivastava, “Energy aware wireless microsensor networks”,for Solar Energy Harvesting Wireless Embedded Systems Vijaydesign of solar energy harvesting, wireless embedded systems

  10. Enabling Long-Lived Sensor Networks Through Solar Energy Harvesting

    E-Print Network [OSTI]

    Jason Hsu; Sadaf Zahedi; Jonathan Friedman; Aman Kansal; Vijay Raghunathan; Mani Srivastava

    2005-01-01

    Sensor Networks through Solar Energy Harvesting Jason Hsu,Heliomote A integrated solar energy harvesting and storageYellow bar represent solar energy received locally Solar

  11. Design Considerations for Solar Energy Harvesting Wireless Embedded Systems

    E-Print Network [OSTI]

    Raghunathan, Vijay; Kansal, Aman; Hsu, Jason; Friedman, Jonathan K; Srivastava, Mani B

    2005-01-01

    sensor node using our solar energy harvesting module. VI. CDesign Considerations for Solar Energy Harvesting Wirelessfactors. For example, solar energy supply is highly time

  12. Wave Energy Harvesting unmanned maritime vehicle, Concept and Applications

    E-Print Network [OSTI]

    Frandsen, Jannette B.

    Wave Energy Harvesting unmanned maritime vehicle, Concept and Applications Justin Manley Senior). By harvesting abundant natural energy Wave Gliders provide a persistent ocean presence to commercial scientific

  13. Development of an Underamor 1-kW Thermoelectric Generator Waste...

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

    an Underamor 1-kW Thermoelectric Generator Waste Heat Recovery System for Military Vehicles Development of an Underamor 1-kW Thermoelectric Generator Waste Heat Recovery System for...

  14. Enhancing the Figure-of-Merit in Half-Heuslers for Vehicle Waste...

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

    the Figure-of-Merit in Half-Heuslers for Vehicle Waste Heat Recovery Enhancing the Figure-of-Merit in Half-Heuslers for Vehicle Waste Heat Recovery Good ZT can occur in...

  15. Harvesting nanoscale thermal radiation using pyroelectric materials

    E-Print Network [OSTI]

    Fang, Jin; Frederich, Hugo; Pilon, Laurent

    2010-01-01

    eld radiative heat transfer dominates radiation transferstudy Far field radiation Heat transfer coefficient, h r (W/nanoscale radiation to enhance radiative heat transfer. The

  16. Geothermal reservoir simulation to enhance confidence in predictions for nuclear waste disposal

    E-Print Network [OSTI]

    Kneafsey, Timothy J.; Pruess, Karsten; O'Sullivan, Michael J.; Bodvarsson, Gudmundur S.

    2002-01-01

    for a Potential High-Level Nuclear Waste Repository at YuccaHeat Flow Near High-Level Nuclear Waste Packages Emplaced inNear a High-Level Nuclear Waste Repository in Partially

  17. Treatment of mercury containing waste

    DOE Patents [OSTI]

    Kalb, Paul D. (Wading River, NY); Melamed, Dan (Gaithersburg, MD); Patel, Bhavesh R (Elmhurst, NY); Fuhrmann, Mark (Babylon, NY)

    2002-01-01

    A process is provided for the treatment of mercury containing waste in a single reaction vessel which includes a) stabilizing the waste with sulfur polymer cement under an inert atmosphere to form a resulting mixture and b) encapsulating the resulting mixture by heating the mixture to form a molten product and casting the molten product as a monolithic final waste form. Additional sulfur polymer cement can be added in the encapsulation step if needed, and a stabilizing additive can be added in the process to improve the leaching properties of the waste form.

  18. Process for treating fission waste. [Patent application

    DOE Patents [OSTI]

    Rohrmann, C.A.; Wick, O.J.

    1981-11-17

    A method is described for the treatment of fission waste. A glass forming agent, a metal oxide, and a reducing agent are mixed with the fission waste and the mixture is heated. After melting, the mixture separates into a glass phase and a metal phase. The glass phase may be used to safely store the fission waste, while the metal phase contains noble metals recovered from the fission waste.

  19. Method and apparatus for reducing mixed waste

    DOE Patents [OSTI]

    Elliott, Michael L. (Kennewick, WA); Perez, Jr., Joseph M. (Richland, WA); Chapman, Chris C. (Richland, WA); Peters, Richard D. (Pasco, WA)

    1995-01-01

    The present invention is a method and apparatus for in-can waste reduction. The method is mixing waste with combustible material prior to placing the waste into a waste reduction vessel. The combustible portion is ignited, thereby reducing combustible material to ash and non-combustible material to a slag. Further combustion or heating may be used to sinter or melt the ash. The apparatus is a waste reduction vessel having receiving canister connection means on a first end, and a waste/combustible mixture inlet on a second end. An oxygen supply is provided to support combustion of the combustible mixture.

  20. Soft Capacitors for Wave Energy Harvesting

    E-Print Network [OSTI]

    Karsten Ahnert; Markus Abel; Matthias Kollosche; Per Jørgen Jørgensen; Guggi Kofod

    2011-10-14

    Wave energy harvesting could be a substantial renewable energy source without impact on the global climate and ecology, yet practical attempts have struggle d with problems of wear and catastrophic failure. An innovative technology for ocean wave energy harvesting was recently proposed, based on the use of soft capacitors. This study presents a realistic theoretical and numerical model for the quantitative characterization of this harvesting method. Parameter regio ns with optimal behavior are found, and novel material descriptors are determined which simplify analysis dramatically. The characteristics of currently ava ilable material are evaluated, and found to merit a very conservative estimate of 10 years for raw material cost recovery.

  1. Heat Recovery and Indirect Evaporative Cooling for Energy Conservation 

    E-Print Network [OSTI]

    Buckley, C. C.

    1984-01-01

    Two thirds of the waste heat sources in the U.S. are in the low temperature range of less than 200 deg F. A primary contributor of this heat is building exhaust. Heat pipe exchangers are ideally suited for recovering this waste. Plant comfort air...

  2. Ultra-wide bandwidth piezoelectric energy harvesting

    E-Print Network [OSTI]

    Hajati, Arman

    Here, we present an ultra wide-bandwidth energy harvester by exploiting the nonlinear stiffness of a doubly clamped microelectromechanical systems (MEMSs) resonator. The stretching strain in a doubly clamped beam shows a ...

  3. Downhole vibration sensing by vibration energy harvesting

    E-Print Network [OSTI]

    Trimble, A. Zachary

    2007-01-01

    This thesis outlines the design of a prototype electromagnetic induction vibration energy harvesting device for use in a downhole environment. First order models of the necessary components for a generic vibration energy ...

  4. Scientists produce transparent, light-harvesting material

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    light-harvesting material The material could be used in development of transparent solar panels. November 3, 2010 Los Alamos National Laboratory sits on top of a once-remote...

  5. Harvesting Residuals-Economic Energy Link 

    E-Print Network [OSTI]

    Owens, E. T.; Curtis, D. B.

    1986-01-01

    A description of systems used in integrated harvesting of quality and unmerchantable trees is outlined for three areas in New Brunswick, Canada. The silvicultural benefits and the use of residues as an alternative to ...

  6. Transmission Completion Time Minimization in an Energy Harvesting System

    E-Print Network [OSTI]

    Ulukus, Sennur

    nature. The nodes may harvest energy through solar cells, vibration absorption devices, water millsTransmission Completion Time Minimization in an Energy Harvesting System Jing Yang Sennur Ulukus-user energy harvesting wireless communication system. In this system, both the data packets and the harvested

  7. Energy Harvesting Broadcast Channel with Inefficient Energy Storage

    E-Print Network [OSTI]

    Yener, Aylin

    Energy Harvesting Broadcast Channel with Inefficient Energy Storage Kaya Tutuncuoglu Aylin Yener with an energy harvesting transmitter equipped with an inefficient energy storage device. For this setting by the energy harvesting process. The convexity of the capacity region for the energy harvesting broadcast

  8. An Energy Harvesting AWGN Channel with a Finite Battery

    E-Print Network [OSTI]

    O'Brien, James F.

    An Energy Harvesting AWGN Channel with a Finite Battery Varun Jog EECS, UC Berkeley Berkeley, CA: ananth@eecs.berkeley.edu Abstract--In energy harvesting communication systems, the transmitter is adapted to harvest energy per time slot. The harvested energy is either used right away or is stored in a battery

  9. Open-Cycle Vapor Compression Heat Pump System 

    E-Print Network [OSTI]

    Pasquinelli, D. M.; Becker, F. E.

    1983-01-01

    In many industrial processes, large quantities of energy are often wasted in the form of low pressure steam and low-grade heat. Economical recovery of these waste energy sources is often difficult due to such factors as ...

  10. Transuranic waste disposal in the United States

    SciTech Connect (OSTI)

    Hoffman, R.B.

    1986-01-01

    The United States is unique in having created a special class of radioactive waste disposal based on the concentration of transuranic elements in the waste. Since 1970, the US has been placing newly generated transuranic waste in retrievable storage. It is intended that these wastes will be placed in a permanent deep geologic repository, the Waste Isolation Pilot Plant (WIPP). WIPP opening for a demonstration emplacement period is set for October, 1988. Transuranic wastes derive from some of the manufacturing and research activities carried out by DOE. The bulk of this waste is generated in plutonium parts fabrication activities. A variety of plutonium contaminated materials ranging from glove boxes, HEPA filters, and machine tools, to chemical sludges derived from plutonium recovery streams are stored as TRU wastes. Other processes that generate TRU waste are plutonium production operations, preparation for and cleanup from fuel reprocessing, manufacturing of plutonium heat sources, and nuclear fuel cycle research activities.

  11. Handbook of industrial and hazardous wastes treatment. 2nd ed.

    SciTech Connect (OSTI)

    Lawrence Wang; Yung-Tse Hung; Howard Lo; Constantine Yapijakis

    2004-06-15

    This expanded Second Edition offers 32 chapters of industry- and waste-specific analyses and treatment methods for industrial and hazardous waste materials - from explosive wastes to landfill leachate to wastes produced by the pharmaceutical and food industries. Key additional chapters cover means of monitoring waste on site, pollution prevention, and site remediation. Including a timely evaluation of the role of biotechnology in contemporary industrial waste management, the Handbook reveals sound approaches and sophisticated technologies for treating: textile, rubber, and timber wastes; dairy, meat, and seafood industry wastes; bakery and soft drink wastes; palm and olive oil wastes; pesticide and livestock wastes; pulp and paper wastes; phosphate wastes; detergent wastes; photographic wastes; refinery and metal plating wastes; and power industry wastes. This final chapter, entitled 'Treatment of power industry wastes' by Lawrence K. Wang, analyses the stream electric power generation industry, where combustion of fossil fuels coal, oil, gas, supplies heat to produce stream, used then to generate mechanical energy in turbines, subsequently converted to electricity. Wastes include waste waters from cooling water systems, ash handling systems, wet-scrubber air pollution control systems, and boiler blowdown. Wastewaters are characterized and waste treatment by physical and chemical systems to remove pollutants is presented. Plant-specific examples are provided.

  12. Heat Management Strategy Trade Study

    SciTech Connect (OSTI)

    Nick Soelberg; Steve Priebe; Dirk Gombert; Ted Bauer

    2009-09-01

    This Heat Management Trade Study was performed in 2008-2009 to expand on prior studies in continued efforts to analyze and evaluate options for cost-effectively managing SNF reprocessing wastes. The primary objective was to develop a simplified cost/benefit evaluation for spent nuclear fuel (SNF) reprocessing that combines the characteristics of the waste generated through reprocessing with the impacts of the waste on heating the repository. Under consideration were age of the SNF prior to reprocessing, plutonium and minor actinide (MA) separation from the spent fuel for recycle, fuel value of the recycled Pu and MA, age of the remaining spent fuel waste prior to emplacement in the repository, length of time that active ventilation is employed in the repository, and elemental concentration and heat limits for acceptable glass waste form durability. A secondary objective was to identify and qualitatively analyze remaining issues such as (a) impacts of aging SNF prior to reprocessing on the fuel value of the recovered fissile materials, and (b) impact of reprocessing on the dose risk as developed in the Yucca Mountain Total System Performance Assessment (TSPA). Results of this study can be used to evaluate different options for managing decay heat in waste streams from spent nuclear fuel.

  13. Innovative Miniaturized Heat Pumps for Buildings: Modular Thermal Hub for Building Heating, Cooling and Water Heating

    SciTech Connect (OSTI)

    None

    2010-09-01

    BEETIT Project: Georgia Tech is using innovative components and system design to develop a new type of absorption heat pump. Georgia Tech’s new heat pumps are energy efficient, use refrigerants that do not emit greenhouse gases, and can run on energy from combustion, waste heat, or solar energy. Georgia Tech is leveraging enhancements to heat and mass transfer technology possible in microscale passages and removing hurdles to the use of heat-activated heat pumps that have existed for more than a century. Use of microscale passages allows for miniaturization of systems that can be packed as monolithic full-system packages or discrete, distributed components enabling integration into a variety of residential and commercial buildings. Compared to conventional heat pumps, Georgia Tech’s design innovations will create an absorption heat pump that is much smaller, has higher energy efficiency, and can also be mass produced at a lower cost and assembly time.

  14. Combustion Exhaust Gas Heat to Power Using Thermoelectric Engines...

    Office of Environmental Management (EM)

    Documents & Publications TEG On-Vehicle Performance & Model Validation Thermoelectric Generator Performance for Passenger Vehicles Thermoelectric Waste Heat Recovery Program for...

  15. Apple Harvest Time! Determining when apples are ready to be harvested can be tricky. You need to know the variety of the apple and its approximate harvest

    E-Print Network [OSTI]

    New Hampshire, University of

    Apple Harvest Time! Determining when apples are ready to be harvested can be tricky. You need to know the variety of the apple and its approximate harvest date. These dates vary each year with fluctuations in blooming rates, degree days and rainfall. If you're growing your own apples, perhaps the best

  16. Harvesting nanoscale thermal radiation using pyroelectric materials

    E-Print Network [OSTI]

    Fang, Jin; Frederich, Hugo; Pilon, Laurent

    2010-01-01

    small convective heat transfer rate between the py-observed that the net heat transfer rate between the platesmagnitude of average heat transfer rate Q in is about 1 W/cm

  17. Process for remediation of plastic waste

    DOE Patents [OSTI]

    Pol, Vilas G; Thiyagarajan, Pappannan

    2013-11-12

    A single step process for degrading plastic waste by converting the plastic waste into carbonaceous products via thermal decomposition of the plastic waste by placing the plastic waste into a reactor, heating the plastic waste under an inert or air atmosphere until the temperature of about 700.degree. C. is achieved, allowing the reactor to cool down, and recovering the resulting decomposition products therefrom. The decomposition products that this process yields are carbonaceous materials, and more specifically carbon nanotubes having a partially filled core (encapsulated) adjacent to one end of the nanotube. Additionally, in the presence of a transition metal compound, this thermal decomposition process produces multi-walled carbon nanotubes.

  18. Process for remediation of plastic waste

    DOE Patents [OSTI]

    Pol, Vilas G. (Westmont, IL); Thiyagarajan, Pappannan (Germantown, MD)

    2012-04-10

    A single step process for degrading plastic waste by converting the plastic waste into carbonaceous products via thermal decomposition of the plastic waste by placing the plastic waste into a reactor, heating the plastic waste under an inert or air atmosphere until the temperature of 700.degree. C. is achieved, allowing the reactor to cool down, and recovering the resulting decomposition products therefrom. The decomposition products that this process yields are carbonaceous materials, and more specifically egg-shaped and spherical-shaped solid carbons. Additionally, in the presence of a transition metal compound, this thermal decomposition process produces multi-walled carbon nanotubes.

  19. CCHP System with Interconnecting Cooling and Heating Network 

    E-Print Network [OSTI]

    Fu, L.; Geng, K.; Zheng, Z.; Jiang, Y.

    2006-01-01

    The consistency between building heating load, cooling load and power load are analyzed in this paper. The problem of energy waste and low equipment usage in a traditional CCHP (combined cooling, heating and power) system with generated electricity...

  20. Direct Refrigeration from Heat Recovery Using 2-Stage Absorption Chillers 

    E-Print Network [OSTI]

    Hufford, P. E.

    1983-01-01

    Although the cost of some fossil fuels has moderated, the importance of energy conservation by heat recovery has not diminished. The application of waste heat generated steam to produce chilled water is not new. However, there is a newly developed...

  1. Overview of Thermoelectric Power Generation Technologies in Japan

    Broader source: Energy.gov [DOE]

    Discusses thermoelectric power generation technologies as applied to waste heat recovery, renewable thermal energy sources, and energy harvesting

  2. Solar cells incorporating light harvesting arrays

    DOE Patents [OSTI]

    Lindsey, Jonathan S.; Meyer, Gerald J.

    2003-07-22

    A solar cell incorporates a light harvesting array that comprises: (a) a first substrate comprising a first electrode; and (b) a layer of light harvesting rods electrically coupled to the first electrode, each of the light harvesting rods comprising a polymer of Formula I: ##EQU1## wherein m is at least 1, and may be from two, three or four to 20 or more; X.sup.1 is a charge separation group (and preferably a porphyrinic macrocycle, which may be one ligand of a double-decker sandwich compound) having an excited-state of energy equal to or lower than that of X.sup.2 ; and X.sup.2 through X.sup.m+1 are chromophores (and again are preferably porphyrinic macrocycles).

  3. Solar cells incorporating light harvesting arrays

    DOE Patents [OSTI]

    Lindsey, Jonathan S. (Raleigh, NC); Meyer, Gerald J. (Baltimore, MD)

    2002-01-01

    A solar cell incorporates a light harvesting array that comprises: (a) a first substrate comprising a first electrode; and (b) a layer of light harvesting rods electrically coupled to the first electrode, each of the light harvesting rods comprising a polymer of Formula I: X.sup.1.paren open-st.X.sup.m+1).sub.m (I) wherein m is at least 1, and may be from two, three or four to 20 or more; X.sup.1 is a charge separation group (and preferably a porphyrinic macrocycle, which may be one ligand of a double-decker sandwich compound) having an excited-state of energy equal to or lower than that of X.sup.2 ; and X.sup.2 through X.sup.m+1 are chromophores (and again are preferably porphyrinic macrocycles).

  4. Analysis of a flapping foil system for energy harvesting at low Reynolds number

    E-Print Network [OSTI]

    Cho, Hunkee

    2011-01-01

    of energy harvesting capacity enhancement………………………….40of energy harvesting capacity enhancement…………………………56to enhance the energy harvesting capacity. xiv Chapter 1

  5. Energy and task management in energy harvesting wireless sensor networks for structural health monitoring

    E-Print Network [OSTI]

    Steck, Jamie Bradley

    2009-01-01

    applied to SHiMmer, a wireless, energy-harvesting structuralthesis dis- cusses a wireless, energy-harvesting sensingManagement in Energy Harvesting Wireless Sensor Networks for

  6. Energy and task management in energy harvesting wireless sensor networks for structural health monitoring

    E-Print Network [OSTI]

    Steck, Jamie Bradley

    2009-01-01

    work in energy harvesting and wireless sensor networks.Management in Energy Harvesting Wireless Sensor Networks forapplied to SHiMmer, a wireless, energy-harvesting structural

  7. Recent Progress in the Development of High Efficiency Thermoelectrics...

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

    Waste Heat Power Generation Quantum Well Thermoelectrics and Waste Heat Recovery Scale Up of SiSi0.8GE0.2 and B4CB9C Superlattices for Harvesting of Waste Heat in Diesel Engines...

  8. Particulate residue separators for harvesting devices

    DOE Patents [OSTI]

    Hoskinson, Reed L.; Kenney, Kevin L.; Wright, Christopher T.; Hess, John R.

    2010-06-29

    A particulate residue separator and a method for separating a particulate residue stream may include a plenum borne by a harvesting device, and have a first, intake end and a second, exhaust end; first and second particulate residue air streams which are formed by the harvesting device and which travel, at least in part, along the plenum and in a direction of the second, exhaust end; and a baffle assembly which is located in partially occluding relation relative to the plenum, and which substantially separates the first and second particulate residue air streams.

  9. Iron phosphate compositions for containment of hazardous metal waste

    DOE Patents [OSTI]

    Day, D.E.

    1998-05-12

    An improved iron phosphate waste form for the vitrification, containment and long-term disposition of hazardous metal waste such as radioactive nuclear waste is provided. The waste form comprises a rigid iron phosphate matrix resulting from the cooling of a melt formed by heating a batch mixture comprising the metal waste and a matrix-forming component. The waste form comprises from about 30 to about 70 weight percent P{sub 2}O{sub 5} and from about 25 to about 50 weight percent iron oxide and has metals present in the metal waste chemically dissolved therein. The concentration of iron oxide in the waste form along with a high proportion of the iron in the waste form being present as Fe{sup 3+} provide a waste form exhibiting improved chemical resistance to corrosive attack. A method for preparing the improved iron phosphate waste forms is also provided. 21 figs.

  10. Iron phosphate compositions for containment of hazardous metal waste

    DOE Patents [OSTI]

    Day, Delbert E. (Rolla, MO)

    1998-01-01

    An improved iron phosphate waste form for the vitrification, containment and long-term disposition of hazardous metal waste such as radioactive nuclear waste is provided. The waste form comprises a rigid iron phosphate matrix resulting from the cooling of a melt formed by heating a batch mixture comprising the metal waste and a matrix-forming component. The waste form comprises from about 30 to about 70 weight percent P.sub.2 O.sub.5 and from about 25 to about 50 weight percent iron oxide and has metals present in the metal waste chemically dissolved therein. The concentration of iron oxide in the waste form along with a high proportion of the iron in the waste form being present as Fe.sup.3+ provide a waste form exhibiting improved chemical resistance to corrosive attack. A method for preparing the improved iron phosphate waste forms is also provided.

  11. The Waste Isolation Pilot Plant Hazardous Waste Facility Permit...

    Office of Environmental Management (EM)

    The Waste Isolation Pilot Plant Hazardous Waste Facility Permit, Waste Analysis Plan The Waste Isolation Pilot Plant Hazardous Waste Facility Permit, Waste Analysis Plan This...

  12. Heat pipe device and heat pipe fabricating process

    SciTech Connect (OSTI)

    Busch, C.H.

    1982-08-10

    An energy saving liquid to liquid heat exchanger for a dishwasher or like device discharging hot waste water comprising a hot water tank for holding the waste water from the dishwasher and having inlet and outlet pipes, a cold water tank for holding the fresh water going to a water heater and having inlet and outlet pipes, the cold water tank disposed on top of the hot water tank, a bundle of heat pipes containing low boiling refrigerant disposed inside of the two tanks so as to extract heat from the hot water tank and give it up to the cold water tank, whereby the temperature of the fresh water leaving the heat exchanger is higher than its entering temperature.

  13. Wood and Pellet Heating | Department of Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to avoid overheating, which wastes fuel and is one of the biggest causes of air pollution. An under-sized unit will not provide sufficient heat. You should discuss your...

  14. Dynamic analysis of an electrostatic energy harvesting system

    E-Print Network [OSTI]

    Niu, Feifei

    2013-01-01

    Traditional small-scale vibration energy harvesters have typically low efficiency of energy harvesting from low frequency vibrations. Several recent studies have indicated that introduction of nonlinearity can significantly ...

  15. Energy harvesting from wind-induced vibration of suspension bridges

    E-Print Network [OSTI]

    Shi, Miao, M. Eng. Massachusetts Institute of Technology

    2013-01-01

    Recently, an extensive amount of research has been focused on energy harvesting from structural vibration sources for wireless self-powered microsystem applications. One method of energy harvesting is using electromagnetic ...

  16. Immersion Condensation on Oil-Infused Heterogeneous Surfaces for Enhanced Heat Transfer

    E-Print Network [OSTI]

    Xiao, Rong

    Enhancing condensation heat transfer is important for broad applications from power generation to water harvesting systems. Significant efforts have focused on easy removal of the condensate, yet the other desired properties ...

  17. Hybrid Nanogenerator for Concurrently Harvesting Biomechanical and

    E-Print Network [OSTI]

    Wang, Zhong L.

    -scale energy con- version, renewable and green energy, efficient energy transmission, energy stor- age, energy, and breathing. If efficiently harvested to its full potential, many of the modern energy requirements needed we present a hybrid energy scavenging device for potential in vivo applications. The hybrid device

  18. Thermal amplification of field-correlation harvesting

    E-Print Network [OSTI]

    Eric G. Brown

    2014-01-08

    We study the harvesting of quantum and classical correlations from a hot scalar field in a periodic cavity by a pair of spatially separated oscillator-detectors. Specifically, we utilize non-perturbative and exact (non-numerical) techniques to solve for the evolution of the detectors-field system and then we examine how the entanglement, Gaussian quantum discord, and mutual information obtained by the detectors change with the temperature of the field. While (as expected) the harvested entanglement rapidly decays to zero as temperature is increased, we find remarkably that both the mutual information and the discord can actually be increased by multiple orders of magnitude via increasing the temperature. We go on to explain this phenomenon by taking advantage of the translational invariance of the field and use this to make accurate predictions of the behavior of thermal amplification; by this we also introduce a new perspective on field-correlation harvesting that we feel is worthy of consideration in its own right. The thermal amplification of discord harvesting represents an exciting prospect for discord-based quantum computation, including its use in entanglement activation.

  19. Wireless Information Transfer with Opportunistic Energy Harvesting

    E-Print Network [OSTI]

    Liu, Liang; Chua, Kee-Chaing

    2012-01-01

    Energy harvesting is a promising solution to prolong the operation of energy-constrained wireless networks. In particular, scavenging energy from ambient radio signals, namely wireless energy harvesting (WEH), has recently drawn significant attention. In this paper, we consider a point-to-point wireless link over the flat-fading channel subject to the time-varying co-channel interference. It is assumed that the receiver has no fixed power supplies and thus needs to replenish energy via WEH from the unintended interference and/or the intended signal sent by the transmitter. We further assume a single-antenna receiver that can only decode information or harvest energy at any given time due to the practical circuit limitation. As a result, it is important to investigate when the receiver should switch between the two modes of information decoding (ID) and energy harvesting (EH), based on the instantaneous channel and interference conditions. In this paper, we derive the optimal mode switching rule at the receive...

  20. Energy Harvesting Communication Networks: Optimization and Demonstration

    E-Print Network [OSTI]

    Uysal-Biyikoglu, Elif

    of information and communication technologies (ICT) within the global carbon footprint, energy efficiency research problem [1]­[3]. Generally ICT is predicted to increase its energy consumption by 4% per year till common [6], and cause even Fig. 1. The energy harvesting system structure. further energy consumption

  1. Tilting at MEMS Windmills for Energy Harvesting?

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    Tilting at MEMS Windmills for Energy Harvesting? Bill Schweber - February 19, 2015 MEMS and Development (yes, it was print), I saw the story "Micro-Windmills: From Lab to Market" on MEMS devices whichMEMS Technologies, a Taiwan-based company. Figure 1: The nickel-based MEMS micro-windmill can be bulk

  2. New Energy Harvesting Technologies Por European Editors

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    power to a system. Micro wind turbines for mobile phones and wideband thermal harvesting for pacemakers Technologies, STMicroelectronics, and EnOcean. As the power requirements of sensors and wireless links fall engineering professor at the University of Texas have designed a micro-windmill that generates wind energy

  3. Thermal Predictions of the Cooling of Waste Glass Canisters

    SciTech Connect (OSTI)

    Donna Post Guillen

    2014-11-01

    Radioactive liquid waste from five decades of weapons production is slated for vitrification at the Hanford site. The waste will be mixed with glass forming additives and heated to a high temperature, then poured into canisters within a pour cave where the glass will cool and solidify into a stable waste form for disposal. Computer simulations were performed to predict the heat rejected from the canisters and the temperatures within the glass during cooling. Four different waste glass compositions with different thermophysical properties were evaluated. Canister centerline temperatures and the total amount of heat transfer from the canisters to the surrounding air are reported.

  4. Effect of Pre and Post-Harvest Treatments on Characteristics of ‘Pawnee’ Pecan Kernels 

    E-Print Network [OSTI]

    Mansur, Zainab J

    2014-04-17

    harvesting practices (‘Direct’, early harvest and brought to the lab; ‘Cluster’, late harvest; and ‘Ground’, early harvest and kept on the ground of the orchard), four storage temperature combinations [oven at 80 °C for 48 h then ambient temperature (‘OA...

  5. The renewable energy contribution from waste across Europe.

    E-Print Network [OSTI]

    Biomass Energy Plants incineration,gasification Collected & sorted waste wood BEP Steam -> Electr. & Heat from waste is a much cheaper source of RE than from most other RE sources (solar, wind, biomass (LFG) For dedicated Biomass Energy Plants (BEP) (waste wood) For WtE thermally treating MSW

  6. Power Allocation for Energy Harvesting Transmitter with Causal Information

    E-Print Network [OSTI]

    Greenberg, Albert

    . With a finite battery capacity and non-causal energy harvesting and fading channel states, a water1 Power Allocation for Energy Harvesting Transmitter with Causal Information Zhe Wang, Vaneet- controlled transmitter with energy harvesting capability based on causal observations of the channel fading

  7. Broadcasting with a Battery Limited Energy Harvesting Rechargeable Transmitter

    E-Print Network [OSTI]

    Ulukus, Sennur

    . The proposed algorithm uses directional water-filling repetitively. I. INTRODUCTION Energy harvestingBroadcasting with a Battery Limited Energy Harvesting Rechargeable Transmitter Omur Ozel1 , Jing with a battery limited energy harvesting trans- mitter in a two-user AWGN broadcast channel. The transmitter has

  8. Resource Management for Fading Wireless Channels with Energy Harvesting Nodes

    E-Print Network [OSTI]

    Ulukus, Sennur

    Resource Management for Fading Wireless Channels with Energy Harvesting Nodes Omur Ozel1 , Kaya of these systems is the fact that the nodes can harvest energy throughout the duration in which communication takes place. As such, transmission policies of the nodes need to adapt to these harvested energy arrivals

  9. Harvesting Kinetic Energy with Switched-Inductor DCDC Converters

    E-Print Network [OSTI]

    Rincon-Mora, Gabriel A.

    energy in motion may not compete with solar power but, in contrast to indoor lighting and thermal sources- power piezoelectric and electrostatic kinetic-harvesting sources. I. HARVESTING KINETIC ENERGY temperature gradients, the fundamental source from which the device draws energy [3]. Harvesting the kinetic

  10. The Energy Harvesting Multiple Access Channel with Energy Storage Losses

    E-Print Network [OSTI]

    Yener, Aylin

    The Energy Harvesting Multiple Access Channel with Energy Storage Losses Kaya Tutuncuoglu and Aylin considers a Gaussian multiple access channel with two energy harvesting transmitters with lossy energy storage. The power allocation policy maximizing the average weighted sum rate given the energy harvesting

  11. Energy Harvesting Communications with Hybrid Energy Storage and Processing Cost

    E-Print Network [OSTI]

    Ulukus, Sennur

    Energy Harvesting Communications with Hybrid Energy Storage and Processing Cost Omur Ozel Khurram with an energy harvesting transmitter with non-negligible processing circuitry power and a hybrid energy storage for energy storage while the battery has unlimited space. The transmitter stores the harvested energy either

  12. Commons and Anticommons in a simple Renewable Resource Harvest Model

    E-Print Network [OSTI]

    Boschetti, Fabio

    Commons and Anticommons in a simple Renewable Resource Harvest Model June 20, 2007 M. Bredea a model where agents harvesting from a renewable resource can impose limita- tions on the harvesting that a fluctuation destabilizes the system into severe overexploitation. key words: renewable resources, commons

  13. Forest Inventory and Harvest Unit Layout By Grant Becker

    E-Print Network [OSTI]

    Brown, Sally

    is accounted for. This step sets up the entire harvest, from boundary placement and property marking to water depending on the severity of slope, landscape, water bodies, and more. These factors can bring a harvestForest Inventory and Harvest Unit Layout By Grant Becker Introduction Forest inventory is of most

  14. A Mechanical Escalator Harvester for Live Oysters and Shell

    E-Print Network [OSTI]

    Hanks developed in Maryland in 1954 to harvest the soft clam, Mya arenaria. It jetted water at high pres gigas. One, the Bailey harvester, is very large, and it is based on the principle by which water, and a powerful water pump. The second component is open and supports a harvester head and scoop similar

  15. EXPERIMENTAL HARVEST OF THE STELLER SEA LION IN ALASKAN WATERS

    E-Print Network [OSTI]

    371 EXPERIMENTAL HARVEST OF THE STELLER SEA LION IN ALASKAN WATERS Marine Biological LaboratoryKernan, Director EXPERIMENTAL HARVEST OF THE STELLER SEA LION IN ALASKAN WATERS by Fredrik V. Thorsteinson, Richard;#12;EXPERIMENTAL HARVEST OF THE STELLER SEA LION IN ALASKAN WATERS by Fredrik V. Thorsteinson, Bureau of Commercial

  16. Catchment hydrological responses to forest harvest amount and spatial pattern

    E-Print Network [OSTI]

    Pan, Feifei

    ] by decreasing evapotranspiration [Bosch and Hewlett, 1982]; (2) regrowth after harvest decreases water yield a large variability in the relationship between harvest amount and annual water yield within eachCatchment hydrological responses to forest harvest amount and spatial pattern Alex Abdelnour,1 Marc

  17. UNIVERSITY OF CALGARY Refined Freeman-Durden for Harvest Detection

    E-Print Network [OSTI]

    Calgary, University of

    detection in rice paddy fields. However, harvest detection for other crops without a smooth underlying water#12;UNIVERSITY OF CALGARY Refined Freeman-Durden for Harvest Detection using PolSAR data by Sina is one of the main challenges of the current century. Harvest detection, as an input for decision making

  18. Water harvest via dewing Myoung-Woon Moon,

    E-Print Network [OSTI]

    Kim, Ho-Young

    Water harvest via dewing Anna Lee, Myoung-Woon Moon, Hyuneui Lim,§ Wan-Doo Kim,§ and Ho-Young Kim 305-343, Korea ABSTRACT: Harvesting water from humid air via dewing can provide a viable solution the effects of wettability and geometry of the condensation substrate on the water harvest efficiency

  19. Subsistence Halibut Ceremonial or Educational Permit Harvest (CPEP) Log

    E-Print Network [OSTI]

    information. Date of Harvest Local Water Body, Bay or Sound IPHC Reg. Area Halibut Type of Gear Used No information. Date of Harvest Local Water Body, Bay or Sound IPHC Reg. Area Halibut Type of Gear Used No information. Date of Harvest Local Water Body, Bay or Sound IPHC Reg. Area Halibut Type of Gear Used No

  20. Design and Power Management of Energy Harvesting Embedded Systems

    E-Print Network [OSTI]

    Shinozuka, Masanobu

    Design and Power Management of Energy Harvesting Embedded Systems Vijay Raghunathan NEC Labs, biomedical implants, etc. While energy harvesting has the potential to enable near-perpetual system operation, designing an efficient energy harvesting system that actually realizes this potential requires an in

  1. Capacity of a Gaussian MAC with Energy Harvesting Transmit Nodes

    E-Print Network [OSTI]

    Sharma, Vinod

    Capacity of a Gaussian MAC with Energy Harvesting Transmit Nodes R Rajesh CABS, DRDO Bangalore buffer to store the harvested energy. First, we find the capacity region of a GMAC powered by transmit. Keywords: Energy harvesting, Gaussian multiple access chan- nel, Finite Buffer, Shannon capacity. I

  2. Transmission Completion Time Minimization in an Energy Harvesting System

    E-Print Network [OSTI]

    Ulukus, Sennur

    arrivals. I. INTRODUCTION In this work, we consider networks where nodes are able to harvest energy from nature. The nodes may harvest energy through solar cells, vibration absorption devices, water millsTransmission Completion Time Minimization in an Energy Harvesting System Jing Yang Sennur Ulukus

  3. Information Capacity of an Energy Harvesting Sensor Node

    E-Print Network [OSTI]

    Viswanath, Pramod

    to electrical energy. Common energy harvesting devices are solar cells, wind turbines and piezo-electric cellsInformation Capacity of an Energy Harvesting Sensor Node R Rajesh, Vinod Sharma and Pramod Viswanath Abstract Energy harvesting sensor nodes are gaining popularity due to their ability to improve

  4. Grafting Energy-Harvesting Leaves onto the Sensornet Tree

    E-Print Network [OSTI]

    Cafarella, Michael J.

    Grafting Energy-Harvesting Leaves onto the Sensornet Tree Lohit Yerva , Bradford Campbell , Apoorva the problem of augmenting battery-powered sen- sornet trees with energy-harvesting leaf nodes. Our results harvest enough energy from ambient sources to acquire and transmit sensor readings ev- ery minute, even

  5. Optimal Energy Management Policies for Energy Harvesting Sensor Nodes

    E-Print Network [OSTI]

    Sharma, Vinod

    .e., the data queue stays stable for the largest possible data rate. Next we obtain energy management policies by energy harvesting techniques ([11], [12]). Common energy harvesting devices are solar cells, wind turbines and piezo-electric cells, which extract energy from the environment. Among these, solar harvesting

  6. Optimal Energy-Bandwidth Allocation for Energy Harvesting Interference Networks

    E-Print Network [OSTI]

    Fisher, Kathleen

    Optimal Energy-Bandwidth Allocation for Energy Harvesting Interference Networks Zhe Wang, Vaneet@research.att.com Abstract--We develop optimal energy-bandwidth allocation algorithm for the energy harvesting transmitters in interference networks. We assume that both the channel gain and the harvested energy are known for K slots

  7. Impact of Biomass Harvesting on Forest Soil Productivity in the

    E-Print Network [OSTI]

    Impact of Biomass Harvesting on Forest Soil Productivity in the Northern Rocky Mountains Woongsoon; Keyes, Christopher R.; Page-Dumroese, Deborah. 2015. Impact of biomass harvesting on forest soil of Agriculture, Forest Service, Rocky Mountain Research Station. 35 p. Abstract Biomass harvesting extracts

  8. System Modeling of Gas Engine Driven Heat Pump

    SciTech Connect (OSTI)

    Mahderekal, Isaac [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL); Shen, Bo [ORNL] [ORNL; Vineyard, Edward [Oak Ridge National Laboratory (ORNL)] [Oak Ridge National Laboratory (ORNL)

    2012-01-01

    To improve the system performance of the GHP, modeling and experimental study has been made by using desiccant system in cooling operation (particularly in high humidity operations) and suction line waste heat recovery to augment heating capacity and efficiency. The performance of overall GHP system has been simulated by using ORNL Modulating Heat Pump Design Software, which is used to predict steady-state heating and cooling performance of variable-speed vapor compression air-to-air heat pumps for a wide range of operational variables. The modeling includes: (1) GHP cycle without any performance improvements (suction liquid heat exchange and heat recovery) as a baseline (both in cooling and heating mode), (2) the GHP cycle in cooling mode with desiccant system regenerated by waste heat from engine incorporated, (3) GHP cycle in heating mode with heat recovery (recovered heat from engine). According to the system modeling results, by using desiccant system regenerated by waste heat from engine, the SHR can be lowered to 40%. The waste heat of the gas engine can boost the space heating efficiency by 25% in rated operating conditions.

  9. About Recreational Shellfish Harvesting in Southwest Florida In many northern coastal states it is common for individuals to harvest

    E-Print Network [OSTI]

    Watson, Craig A.

    designate an area for harvesting. Within a SHA, there are several water classifications. The public is only allowed to harvest shellfish from approved or conditionally approved waters. Before visiting a SHA) Shellfish harvesting can only occur in conditionally approved waters within the Ten Thousand Islands SHA

  10. MUSHROOM WASTE MANAGEMENT PROJECT LIQUID WASTE MANAGEMENT

    E-Print Network [OSTI]

    #12;MUSHROOM WASTE MANAGEMENT PROJECT LIQUID WASTE MANAGEMENT PHASE I: AUDIT OF CURRENT PRACTICE The Mushroom Waste Management Project (MWMP) was initiated by Environment Canada, the BC Ministry of solid and liquid wastes generated at mushroom producing facilities. Environmental guidelines

  11. Turning waste into energy beats landfilling

    E-Print Network [OSTI]

    Columbia University

    , not incineration. Miller and others also refer to incineration as a source of dioxins, and they're right. But let that the landfills throughout Ontario and Michigan release fewer dioxins than that, he needs to hire better advisers-to-waste plants generate heat and electricity, This incinerator in Malmo, Sweden, supplies electricity and heat

  12. Use of cooling-temperature heat for sustainable food production

    E-Print Network [OSTI]

    CERN. Geneva

    2013-01-01

    Food production and energy are undoubtedly interlinked. However, at present food production depends almost exclusively on direct use of stored energy sources, may they be nuclear-, petroleum- or bio-based. Furthermore, non-storage based “renewable” energy systems, like wind and solar, need development before bering able to contribute at a significant level. This presentation will point towards surplus heat as a way to bridge the gap between today’s food systems and truly sustainable ones, suitable to be performed in urban and peri-urban areas. Considering that arable land and fresh water resources are the base for our present food systems, but are limited, in combination with continued urbanisation, such solutions are urgently needed. By combining the use of surplus energy with harvest of society’s organic side flows, like e.g. food waste and aquatic based cash crops, truly sustainable and urban close food systems are possible at a level of significance also for global food security.

  13. Bioelectrochemical Integration of Waste Heat Recovery, Waste-to-Energy

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p uBUSEnergy|| Department- DirectorTechnologyConversion,

  14. Review of pyroelectric thermal energy harvesting and new MEMs based resonant energy conversion techniques

    SciTech Connect (OSTI)

    Hunter, Scott Robert [ORNL; Lavrik, Nickolay V [ORNL; Mostafa, Salwa [ORNL; Rajic, Slobodan [ORNL; Datskos, Panos G [ORNL

    2012-01-01

    Harvesting electrical energy from thermal energy sources using pyroelectric conversion techniques has been under investigation for over 50 years, but it has not received the attention that thermoelectric energy harvesting techniques have during this time period. This lack of interest stems from early studies which found that the energy conversion efficiencies achievable using pyroelectric materials were several times less than those potentially achievable with thermoelectrics. More recent modeling and experimental studies have shown that pyroelectric techniques can be cost competitive with thermoelectrics and, using new temperature cycling techniques, has the potential to be several times as efficient as thermoelectrics under comparable operating conditions. This paper will review the recent history in this field and describe the techniques that are being developed to increase the opportunities for pyroelectric energy harvesting. The development of a new thermal energy harvester concept, based on temperature cycled pyroelectric thermal-to-electrical energy conversion, are also outlined. The approach uses a resonantly driven, pyroelectric capacitive bimorph cantilever structure that can be used to rapidly cycle the temperature in the energy harvester. The device has been modeled using a finite element multi-physics based method, where the effect of the structure material properties and system parameters on the frequency and magnitude of temperature cycling, and the efficiency of energy recycling using the proposed structure, have been modeled. Results show that thermal contact conductance and heat source temperature differences play key roles in dominating the cantilever resonant frequency and efficiency of the energy conversion technique. This paper outlines the modeling, fabrication and testing of cantilever and pyroelectric structures and single element devices that demonstrate the potential of this technology for the development of high efficiency thermal-to-electrical energy conversion devices.

  15. Waste Heat Management Options for Improving Industrial Process Heating

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing ToolInternationalReport FY2014 - Employers TakeVote for Your4-0006PostSystems |

  16. In-situ vitrification of waste materials

    DOE Patents [OSTI]

    Powell, J.R.; Reich, M.; Barletta, R.

    1997-10-14

    A method for the in-situ vitrification of waste materials in a disposable can that includes an inner container and an outer container is disclosed. The method includes the steps of adding frit and waste materials to the inner container, removing any excess water, heating the inner container such that the frit and waste materials melt and vitrify after cooling, while maintaining the outer container at a significantly lower temperature than the inner container. The disposable can is then cooled to ambient temperatures and stored. A device for the in-situ vitrification of waste material in a disposable can is also disclosed. 7 figs.

  17. CEWEP -Confederation of European Waste-to-Energy Plants Boulevard Clovis 12A

    E-Print Network [OSTI]

    Columbia University

    energy from waste Waste-to-Energy A cost effective and reliable sustainable energy source Waste waste represent a relatively low cost source of sustainable energy. The EU 27's renewable energy gap demand per capita equals 1.62 MWh/capita/yr and heat demand per capita equals 5.03 MWh/capita/yr. #12

  18. An Evaluation of Industrial Heat Pumps for Effective Low-Temperature Heat Utilization 

    E-Print Network [OSTI]

    Leibowitz, H. M.; Colosimo, D. D.

    1980-01-01

    The implementation of industrial heat pumps utilizing waste water from various industrial processes for the production of process steam is presented as a viable economic alternative to a conventional fossil-fired boiler and as an effective fuel...

  19. Waste Heat Recovery Power Generation with WOWGen 

    E-Print Network [OSTI]

    Romero, M.

    2009-01-01

    WOW operates in the energy efficiency field- one of the fastest growing energy sectors in the world today. The two key products - WOWGen® and WOWClean® provide more energy at cheaper cost and lower emissions. •WOWGen® - Power Generation from...

  20. Quantum Well Thermoelectrics and Waste Heat Recovery

    Broader source: Energy.gov [DOE]

    Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT).

  1. Engine Waste Heat Recovery Concept Demonstration

    Broader source: Energy.gov [DOE]

    Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010.

  2. Combustion & Fuels Waste Heat Recovery & Utilization Project

    Broader source: Energy.gov [DOE]

    Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit Review 2008 on February 25, 2008 in Bethesda, Maryland.

  3. Thermoelectrics Partnership: High Performance Thermoelectric Waste Heat

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavings for Specific2 DOE HydrogenScalable Thermo-

  4. Waste-Lithium-Liquid (WLL) Flow Battery for Stationary Energy Storage Applications Youngsik Kim* and Nina MahootcheianAsl

    E-Print Network [OSTI]

    Zhou, Yaoqi

    Waste-Lithium-Liquid (WLL) Flow Battery for Stationary Energy Storage Applications Youngsik Kim. The harvested Li metal could then be an energy source for Li-Liquid flow batteries by using water as the cathode in a Waste-Lithium-Liquid (WLL) flow battery that can be used in a stationary energy storage application. Li

  5. Heat Balance Study for Submersible Mixer Pump

    SciTech Connect (OSTI)

    Lee, S.Y.

    2003-07-21

    A transient heat balance model was developed to assess the impact of a Submersible Mixer Pump (SMP) on waste temperature during the process of waste mixing and removal for the Type-I SRS tanks. The model results will be mainly used to determine the SMP design impacts on the waste tank temperature during operations and to develop a specification for a new SMP design to replace existing long-shaft mixer pumps used during waste removal. The model will also be used to provide input to the operation planning. This planning will be used as input to pump run duration in order to maintain temperature requirements within the tank during SMP operation.

  6. The Advantages of Sealless Pumps in Heat Transfer Fluid Services 

    E-Print Network [OSTI]

    Smith, M. D.

    1999-01-01

    OF SEALLESS PUMPS IN HEAT TRANSFER FLUID SERVICES Michael D. Smith Engineering Manager Sundstrand Fluid Handling Arvada, CO ABSTRACT The expectations for heat transfer fluid (HTF) system safety and reliability are continuing to increase... mechanical seals. In addition, one type of sealless pump, the canned motor pump, raises the thermal efficiency of HTF systems. Waste heat from the drive motors of m'ost pumps is dissipated to the air. A shaft driven fan wastes additional energy...

  7. Transuranic waste disposal in the United State

    SciTech Connect (OSTI)

    Thompson, J.D.

    1986-01-01

    The US is unique in having created a special class of radioactive waste disposal based on the concentration of transuranic (TRU) elements in the waste. Since 1970, the US has been placing newly generated TRU waste in retrievable storage. It is intended that these wastes will be placed in a permanent deep geologic repository, the Waste Isolation Pilot Plant (WIPP). The WIPP opening for a demonstration emplacement period is set for October 1988. Transuranic wastes derive from some of the manufacturing and research activities carried out by the US Department of Energy (DOE). The bulk of this waste is generated in plutonium parts fabrication activities. A variety of plutonium-contaminated materials ranging from glove boxes, high-efficiency particulate air filters, and machine tools, to chemical sludges derived from plutonium recovery streams are stored as TRU wastes. Other processes that generate TRU waste are plutonium production operations, preparation for and cleanup from fuel reprocessing, manufacturing of plutonium heat sources, and nuclear fuel cycle research activities. Extensive procedures will be used to examine and prepare waste before it is placed in the WIPP for disposal. After the WIPP opens, certified waste will be transported to it and emplaced in the repository.

  8. Baseline Glass Development for Combined Fission Products Waste Streams

    SciTech Connect (OSTI)

    Crum, Jarrod V.; Billings, Amanda Y.; Lang, Jesse B.; Marra, James C.; Rodriguez, Carmen P.; Ryan, Joseph V.; Vienna, John D.

    2009-06-29

    Borosilicate glass was selected as the baseline technology for immobilization of the Cs/Sr/Ba/Rb (Cs), lanthanide (Ln) and transition metal fission product (TM) waste steams as part of a cost benefit analysis study.[1] Vitrification of the combined waste streams have several advantages, minimization of the number of waste forms, a proven technology, and similarity to waste forms currently accepted for repository disposal. A joint study was undertaken by Pacific Northwest National Laboratory (PNNL) and Savannah River National Laboratory (SRNL) to develop acceptable glasses for the combined Cs + Ln + TM waste streams (Option 1) and Cs + Ln combined waste streams (Option 2) generated by the AFCI UREX+ set of processes. This study is aimed to develop baseline glasses for both combined waste stream options and identify key waste components and their impact on waste loading. The elemental compositions of the four-corners study were used along with the available separations data to determine the effect of burnup, decay, and separations variability on estimated waste stream compositions.[2-5] Two different components/scenarios were identified that could limit waste loading of the combined Cs + LN + TM waste streams, where as the combined Cs + LN waste stream has no single component that is perceived to limit waste loading. Combined Cs + LN waste stream in a glass waste form will most likely be limited by heat due to the high activity of Cs and Sr isotopes.

  9. Renewal of Collaborative Research: Economically Viable Forest Harvesting Practices That Increase Carbon Sequestration

    SciTech Connect (OSTI)

    Davidson, E.A.; Dail, D.B., Hollinger, D.; Scott, N.; Richardson, A.

    2012-08-02

    Forests provide wildlife habitat, water and air purification, climate moderation, and timber and nontimber products. Concern about climate change has put forests in the limelight as sinks of atmospheric carbon. The C stored in the global vegetation, mostly in forests, is nearly equivalent to the amount present in atmospheric CO{sub 2}. Both voluntary and government-mandated carbon trading markets are being developed and debated, some of which include C sequestration resulting from forest management as a possible tradeable commodity. However, uncertainties regarding sources of variation in sequestration rates, validation, and leakage remain significant challenges for devising strategies to include forest management in C markets. Hence, the need for scientifically-based information on C sequestration by forest management has never been greater. The consequences of forest management on the US carbon budget are large, because about two-thirds of the {approx}300 million hectare US forest resource is classified as 'commercial forest.' In most C accounting budgets, forest harvesting is usually considered to cause a net release of C from the terrestrial biosphere to the atmosphere. However, forest management practices could be designed to meet the multiple goals of providing wood and paper products, creating economic returns from natural resources, while sequestering C from the atmosphere. The shelterwood harvest strategy, which removes about 30% of the basal area of the overstory trees in each of three successive harvests spread out over thirty years as part of a stand rotation of 60-100 years, may improve net C sequestration compared to clear-cutting because: (1) the average C stored on the land surface over a rotation increases, (2) harvesting only overstory trees means that a larger fraction of the harvested logs can be used for long-lived sawtimber products, compared to more pulp resulting from clearcutting, (3) the shelterwood cut encourages growth of subcanopy trees by opening up the forest canopy to increasing light penetration. Decomposition of onsite harvest slash and of wastes created during timber processing releases CO{sub 2} to the atmosphere, thus offsetting some of the C sequestered in vegetation. Decomposition of soil C and dead roots may also be temporarily stimulated by increased light penetration and warming of the forest floor. Quantification of these processes and their net effect is needed. We began studying C sequestration in a planned shelterwood harvest at the Howland Forest in central Maine in 2000. The harvest took place in 2002 by the International Paper Corporation, who assisted us to track the fates of harvest products (Scott et al., 2004, Environmental Management 33: S9-S22). Here we present the results of intensive on-site studies of the decay of harvest slash, soil respiration, growth of the remaining trees, and net ecosystem exchange (NEE) of CO{sub 2} during the first six years following the harvest. These results are combined with calculations of C in persisting off-site harvest products to estimate the net C consequences to date of this commercial shelterwood harvest operation. Tower-based eddy covariance is an ideal method for this study, as it integrates all C fluxes in and out of the forest over a large 'footprint' area and can reveal how the net C flux, as well as gross primary productivity and respiration, change following harvest. Because the size of this experiment precludes large-scale replication, we are use a paired-airshed approach, similar to classic large-scale paired watershed experiments. Measurements of biomass and C fluxes in control and treatment stands were compared during a pre-treatment calibration period, and then divergence from pre-treatment relationships between the two sites measured after the harvest treatment. Forests store carbon (C) as they accumulate biomass. Many forests are also commercial sources of timber and wood fiber. In most C accounting budgets, forest harvesting is usually considered to cause a net release of C from the terrestrial biosphere to the at

  10. Harvesting Energy-Options and Challenges from the Bark Beetle Epidemic

    E-Print Network [OSTI]

    Residues - Hazardous Fuel Forest Treatments - Short Rotation Woody Crops - Wood Waste - Conventional - Mill Facilities Colorado Wyoming Existing larger wood processing facilities, chips/sort yards and wood heating- urban interface · New pellet mills in the area of the beetle kill, but current sawmills are a long

  11. Apparatus for incinerating hazardous waste

    DOE Patents [OSTI]

    Chang, Robert C. W. (Martinez, GA)

    1994-01-01

    An apparatus for incinerating wastes, including an incinerator having a combustion chamber, a fluidtight shell enclosing the combustion chamber, an afterburner, an off-gas particulate removal system and an emergency off-gas cooling system. The region between the inner surface of the shell and the outer surface of the combustion chamber forms a cavity. Air is supplied to the cavity and heated as it passes over the outer surface of the combustion chamber. Heated air is drawn from the cavity and mixed with fuel for input into the combustion chamber. The pressure in the cavity is maintained at least approximately 2.5 cm WC (about 1" WC) higher than the pressure in the combustion chamber. Gases cannot leak from the combustion chamber since the pressure outside the chamber (inside the cavity) is higher than the pressure inside the chamber. The apparatus can be used to treat any combustible wastes, including biological wastes, toxic materials, low level radioactive wastes, and mixed hazardous and low level transuranic wastes.

  12. Apparatus for incinerating hazardous waste

    DOE Patents [OSTI]

    Chang, R.C.W.

    1994-12-20

    An apparatus is described for incinerating wastes, including an incinerator having a combustion chamber, a fluid-tight shell enclosing the combustion chamber, an afterburner, an off-gas particulate removal system and an emergency off-gas cooling system. The region between the inner surface of the shell and the outer surface of the combustion chamber forms a cavity. Air is supplied to the cavity and heated as it passes over the outer surface of the combustion chamber. Heated air is drawn from the cavity and mixed with fuel for input into the combustion chamber. The pressure in the cavity is maintained at least approximately 2.5 cm WC higher than the pressure in the combustion chamber. Gases cannot leak from the combustion chamber since the pressure outside the chamber (inside the cavity) is higher than the pressure inside the chamber. The apparatus can be used to treat any combustible wastes, including biological wastes, toxic materials, low level radioactive wastes, and mixed hazardous and low level transuranic wastes. 1 figure.

  13. Biohazardous Waste Disposal Guidelines Sharps Waste Solid Lab Waste Liquid Waste Animals Human

    E-Print Network [OSTI]

    Aluwihare, Lihini

    Mixed Waste Before generating mixed waste (i.e, mixture of biohazardous and chemical or radioactive waste), call Environment, Health & Safety: (858) 534-2753. * Disinfectants other than bleach mustBiohazardous Waste Disposal Guidelines Sharps Waste Solid Lab Waste Liquid Waste Animals Human

  14. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings* ... 1,602 1,397...

  15. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Energy Consumption Survey: Energy End-Use Consumption Tables Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All...

  16. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings ... 2,037...

  17. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings* ... 1,870 1,276...

  18. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Tables Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings ... 636 580 46 1 Q 114.0...

  19. Susanville District Heating District Heating Low Temperature...

    Open Energy Info (EERE)

    Susanville District Heating District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Susanville District Heating District Heating Low Temperature...

  20. Energy harvesting using vortex-induced vibrations of tensioned cables

    E-Print Network [OSTI]

    Grouthier, Clement; de Langre, Emmanuel

    2012-01-01

    The development of energy harvesting systems based on fluid/structure interactions is part of the global search for innovative tools to produce renewable energy. In this paper, the possibility to harvest energy from a flow using vortex-induced vibrations (VIV) of a tensioned flexible cable is analyzed. The fluid loading on the vibrating solid and resulting dynamics are computed using an appropriate wake-oscillator model, allowing one to perform a systematic parametric study of the efficiency. The generic case of an elastically-mounted rigid cylinder is first investigated, before considering an infinite cable with two different types of energy harvesting : a uniformly spanwise distributed harvesting and then a periodic distribution of discrete harvesting devices. The maximum harvesting efficiency is of the same order for each configuration and is always reached when the solid body and its wake are in a frequency lock-in state.

  1. Plasma vitrification of waste materials

    DOE Patents [OSTI]

    McLaughlin, D.F.; Dighe, S.V.; Gass, W.R.

    1997-06-10

    This invention provides a process wherein hazardous or radioactive wastes in the form of liquids, slurries, or finely divided solids are mixed with finely divided glassformers (silica, alumina, soda, etc.) and injected directly into the plume of a non-transferred arc plasma torch. The extremely high temperatures and heat transfer rates makes it possible to convert the waste-glassformer mixture into a fully vitrified molten glass product in a matter of milliseconds. The molten product may then be collected in a crucible for casting into final wasteform geometry, quenching in water, or further holding time to improve homogeneity and eliminate bubbles. 4 figs.

  2. Plasma vitrification of waste materials

    DOE Patents [OSTI]

    McLaughlin, David F. (Oakmont, PA); Dighe, Shyam V. (North Huntingdon, PA); Gass, William R. (Plum Boro, PA)

    1997-01-01

    This invention provides a process wherein hazardous or radioactive wastes in the form of liquids, slurries, or finely divided solids are mixed with finely divided glassformers (silica, alumina, soda, etc.) and injected directly into the plume of a non-transferred arc plasma torch. The extremely high temperatures and heat transfer rates makes it possible to convert the waste-glassformer mixture into a fully vitrified molten glass product in a matter of milliseconds. The molten product may then be collected in a crucible for casting into final wasteform geometry, quenching in water, or further holding time to improve homogeneity and eliminate bubbles.

  3. Aalborg Universitet CFD modeling and experience of waste-to-energy plant burning waste wood

    E-Print Network [OSTI]

    Yin, Chungen

    -to-Energy (WtE) plants for CHP (combined heat and power) production from waste combustion/incineration. However-depth understanding of the fundamental mixing, combustion, heat transfer and pollutant formation in combustion (Computation Fluid Dynamics) is a powerful tool to aid in optimization of WtE plants to achieve higher

  4. Method of and apparatus for recovery of waste energy

    SciTech Connect (OSTI)

    Molitor, V. D.

    1985-07-16

    A holding tank receives waste water from a dishwasher or laundry machine having a rinse cycle and at least one wash cycle. A pump moves the waste water through a heat exchanger at the same time that the rinse cycle requires hot water from a hot water heater. The cold water feed for the hot water heater is also passed in countercurrent heat exchange relationship with the waste water to provide warmed or heated makeup water at the same time that hot water is being withdrawn therefrom. The cooled waste water from the heat exchanger may be collected in a tank and supplied to any one or more of several additional devices, such as a water cooled refrigerant compressor, a grease extraction ventilator having water contact means, a waste food grinder, etc. The ventilator and compressor may also be placed in series, while the cooling water heated in the compressor is recirculated to the heat exchanger. The holding tank may be mounted directly beneath the dishwasher, or the holding tank and countercurrent heat exchanger may be placed in a common housing, with the holding tank beneath the heat exchanger and a pump to transfer the waste water from the holding tank to the appropriate tubes of the coils of the heat exchanger, from which waste water may be discharged into a discharge area adjacent the holding tank. A removable screen for the waste water may be provided above the holding tank in each instance. When a discharge area is adjacent the holding tank, the screen will be self-cleaning, due to flow of incoming waste water across the screen and into the discharge area, when the screen is occluded.

  5. Energy harvesting using a thermoelectric material

    DOE Patents [OSTI]

    Nersessian, Nersesse (Van Nuys, CA); Carman, Gregory P. (Los Angeles, CA); Radousky, Harry B. (San Leandro, CA)

    2008-07-08

    A novel energy harvesting system and method utilizing a thermoelectric having a material exhibiting a large thermally induced strain (TIS) due to a phase transformation and a material exhibiting a stress induced electric field is introduced. A material that exhibits such a phase transformation exhibits a large increase in the coefficient of thermal expansion over an incremental temperature range (typically several degrees Kelvin). When such a material is arranged in a geometric configuration, such as, for a example, a laminate with a material that exhibits a stress induced electric field (e.g. a piezoelectric material) the thermally induced strain is converted to an electric field.

  6. WASTE TO WATTS Waste is a Resource!

    E-Print Network [OSTI]

    Columbia University

    WASTE TO WATTS Waste is a Resource! energy forum Case Studies from Estonia, Switzerland, Germany Bossart,· ABB Waste-to-Energy Plants Edmund Fleck,· ESWET Marcel van Berlo,· Afval Energie Bedrijf From Waste to Energy To Energy from Waste #12;9.00-9.30: Registration 9.30-9.40: Chairman Ella Stengler opens

  7. Combined Flue Gas Heat Recovery and Pollution Control Systems 

    E-Print Network [OSTI]

    Zbikowski, T.

    1979-01-01

    in the field of heat recovery now make it possible to recover a portion of the wasted heat and improve the working conditions of the air purification equipment. Proper design and selection of heat recovery and pollution control equipment as a combination...

  8. Optimal Transmission Policies for Energy Harvesting Two-hop Networks

    E-Print Network [OSTI]

    Orhan, Oner

    2012-01-01

    In this paper, a two-hop communication system with energy harvesting nodes is considered. Unlike battery powered wireless nodes, both the source and the relay are able to harvest energy from environment during communication, therefore, both data and energy causality over the two hops need to be considered. Assuming both nodes know the harvested energies in advance, properties of optimal transmission policies to maximize the delivered data by a given deadline are identified. Using these properties, optimal power allocation and transmission schedule for the case in which both nodes harvest two energy packets is developed.

  9. Design Considerations for Solar Energy Harvesting Wireless Embedded Systems

    E-Print Network [OSTI]

    Raghunathan, Vijay; Kansal, Aman; Hsu, Jason; Friedman, Jonathan K; Srivastava, Mani B

    2005-01-01

    CVS repository, Networked and Embedded Systems Lab, UCLA. (Mani Srivastava Networked and Embedded Systems Lab (NESL)harvesting, wireless embedded systems and presents the

  10. PS2013 Satellite Workshop on Photosynthetic Light?Harvesting...

    Office of Scientific and Technical Information (OSTI)

    through sessions on the initial light-harvesting events in the biological conversion of solar energy to chemically stored energy forms, and how these natural photosynthetic...

  11. ABSTRACT: Bioenergy Harvesting Technologies to Supply Crop Residues...

    Energy Savers [EERE]

    objectives for the integration of advanced logistical systems and focused bioenergy harvesting technologies that supply crop residues and energy crops in a large bale format....

  12. Theory of light-harvesting in photosynthesis: from structure...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Johannes Kepler Universitat -Linz, Austria renger2 abstract In photosynthesis, light energy absorbed in light-harvesting pigment-protein complexes is transferred via an...

  13. Photon Enhanced Thermionic Emission for Solar Energy Harvesting...

    Office of Scientific and Technical Information (OSTI)

    Enhanced Thermionic Emission for Solar Energy Harvesting Final Report to the Global Climate and Energy Project Citation Details In-Document Search Title: Photon Enhanced...

  14. Use Low-Grade Waste Steam to Power Absorption Chillers, Energy...

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

    4 Use Low-Grade Waste Steam to Power Absorption Chillers Absorption chillers use heat, instead of mechanical energy, to provide cooling. The mechanical vapor compressor is replaced...

  15. Methodology for Allocating Municipal Solid Waste to Biogenic and Non-Biogenic Energy

    Reports and Publications (EIA)

    2007-01-01

    This report summarizes the methodology used to split the heat content of municipal solid waste (MSW) into its biogenic and non-biogenic shares.

  16. A Cross-Flow Ceramic Heat Recuperator for Industrial Heat Recovery 

    E-Print Network [OSTI]

    Gonzalez, J. M.; Cleveland, J. J.; Kohnken, K. H.; Rebello, W. J.

    1980-01-01

    With increasing fuel costs, the efficient use of fuel is very important to the U.S. process heat industries. Increase in fuel usage efficiency can be obtained by transferring the waste exhaust heat to the cold combustion air. The metallic...

  17. Broad Band Photon Harvesting Biomolecules for Photovoltaics

    E-Print Network [OSTI]

    P. Meredith; B. J. Powell; J. Riesz; R. Vogel; D. Blake; I. Kartini; G. Will; S. Subianto

    2004-06-04

    We discuss the key principles of artificial photosynthesis for photovoltaic energy conversion. We demonstrate these principles by examining the operation of the so-called "dye sensitized solar cell" (DSSC) - a photoelectrochemical device which simulates the charge separation process across a nano-structured membrane that is characteristic of natural systems. These type of devices have great potential to challenge silicon semiconductor technology in the low cost, medium efficiency segment of the PV market. Ruthenium charge transfer complexes are currently used as the photon harvesting components in DSSCs. They produce a relatively broad band UV and visible response, but have long term stability problems and are expensive to manufacture. We suggest that a class of biological macromolecules called the melanins may be suitable replacements for the ruthenium complexes. They have strong, broad band absorption, are chemically and photochemically very stable, can be cheaply and easily synthesized, and are also bio-available and bio-compatible. We demonstrate a melanin-based regenerative solar cell, and discuss the key properties that are necessary for an effective broad band photon harvesting system.

  18. Sustainable Harvest for Food and Fuel

    SciTech Connect (OSTI)

    Grosshans, Raymond R.; Kostelnik, Kevin, M.; Jacobson, Jacob J.

    2007-04-01

    The DOE Biomass Program recently implemented the Biofuels Initiative, or 30x30 program, with the dual goal of reducing U.S. dependence on foreign oil by making cellulosic ethanol cost competitive with gasoline by 2012 and by replacing 30 percent of gasoline consumption with biofuels by 2030. Experience to date with increasing ethanol production suggests that it distorts agricultural markets and therefore raises concerns about the sustainability of the DOE 30 X 30 effort: Can the U.S. agricultural system produce sufficient feedstocks for biofuel production and meet the food price and availability expectations of American consumers without causing environmental degradation that would curtail the production of both food and fuel? Efforts are underway to develop computer-based modeling tools that address this concern and support the DOE 30 X 30 goals. Beyond technical agronomic and economic concerns, however, such models must account for the publics’ growing interest in sustainable agriculture and in the mitigation of predicted global climate change. This paper discusses ongoing work at the Center for Advanced Energy Studies that investigates the potential consequences and long-term sustainability of projected biomass harvests by identifying and incorporating “sustainable harvest indicators” in a computer modeling strategy.

  19. Sustainable Harvest for Food and Fuel

    SciTech Connect (OSTI)

    Raymond R. Grosshans; Kevin M. Kostelnik; Jacob J. Jacobson

    2007-12-01

    The DOE Biomass Program recently implemented the Biofuels Initiative, or 30x30 program, with the dual goal of reducing U.S. dependence on foreign oil by making cellulosic ethanol cost competitive with gasoline by 2012 and by replacing 30 percent of gasoline consumption with biofuels by 2030. Experience to date with increasing ethanol production suggests that it distorts agricultural markets and therefore raises concerns about the sustainability of the DOE 30x30 effort: Can the U.S. agricultural system produce sufficient feedstocks for biofuel production and meet the food price and availability expectations of American consumers without causing environmental degradation that would curtail the production of both food and fuel? Efforts are underway to develop computer-based modeling tools that address this concern and support the DOE 30x30 goals. Beyond technical agronomic and economic concerns, however, such models must account for the publics’ growing interest in sustainable agriculture and in the reduction of greenhouse gas emissions. This paper discusses ongoing work at the Center for Advanced Energy Studies that investigates the potential consequences and long-term sustainability of projected biomass harvests by identifying and incorporating “sustainable harvest indicators” in a computer modeling strategy.

  20. Heat Pipe Performance Enhancement with Binary Mixture Fluids that Exhibit Strong Concentration Marangoni Effects

    E-Print Network [OSTI]

    Armijo, Kenneth Miguel

    2011-01-01

    two-phase thermosyphon solar water heater”, Energy, 36 , pp.thermal hybrid solar collector water heater”, Proc. ISESheaters simulated waste heat production of the respective PV solar

  1. Exhaust Heat Driven Rankine Cycle for a Heavy Duty Diesel Engine

    Broader source: Energy.gov [DOE]

    Presents progress to date and plans to develop a viable Rankine engine to harness useful brake power from wasted heat energy in heavy duty truck engine exhaust

  2. HAZARDOUS WASTE [Written Program

    E-Print Network [OSTI]

    Pawlowski, Wojtek

    HAZARDOUS WASTE MANUAL [Written Program] Cornell University [10/7/13 #12;Hazardous Waste Program................................................... 8 3.0 MINIMIZING HAZARDOUS WASTE GENERATION.........................................................10 4.0 HAZARDOUS WASTE GENERATOR REQUIREMENTS.....................................................10

  3. The Water-Wise Vegetable Garden: An Analysis of the Potential for Irrigation through Rainwater Harvesting in Sunny Northern California

    E-Print Network [OSTI]

    Smith, Adrienne; Esterer-Vogel, Elisabeth

    2009-01-01

    more suitable to harvesting potable water are Galvalume® and8: Rainwater Harvesting System Components Figure 9: Waterrainwater harvesting can supply adequate quantities of water

  4. The Water-Wise Vegetable Garden: An Analysis of the Potential for Irrigation through Rainwater Harvesting in Sunny Northern California

    E-Print Network [OSTI]

    Smith, Adrienne; Esterer-Vogel, Elisabeth

    2009-01-01

    Texas Manual on Rainwater Harvesting, Third Edition. Austin,2: Potential for Rainwater Harvesting at Case Study HousesIrrigation through Rainwater Harvesting in Sunny Northern

  5. An efficient piezoelectric energy-harvesting interface circuit using a Bias-Flip rectifier and shared inductor

    E-Print Network [OSTI]

    Ramadass, Yogesh Kumar

    Energy harvesting is an emerging technology with applications to handheld, portable and implantable electronics. Harvesting ambient vibration energy through piezoelectric (PE) means is a popular energy harvesting technique ...

  6. Waste Management

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking WithTelecentricN A 035(92/02) nergFeet)DepartmentWasteWaste

  7. Municipal solid waste generation in municipalities: Quantifying impacts of household structure, commercial waste and domestic fuel

    SciTech Connect (OSTI)

    Lebersorger, S.; Beigl, P.

    2011-09-15

    Waste management planning requires reliable data concerning waste generation, influencing factors on waste generation and forecasts of waste quantities based on facts. This paper aims at identifying and quantifying differences between different municipalities' municipal solid waste (MSW) collection quantities based on data from waste management and on socio-economic indicators. A large set of 116 indicators from 542 municipalities in the Province of Styria was investigated. The resulting regression model included municipal tax revenue per capita, household size and the percentage of buildings with solid fuel heating systems. The model explains 74.3% of the MSW variation and the model assumptions are met. Other factors such as tourism, home composting or age distribution of the population did not significantly improve the model. According to the model, 21% of MSW collected in Styria was commercial waste and 18% of the generated MSW was burned in domestic heating systems. While the percentage of commercial waste is consistent with literature data, practically no literature data are available for the quantity of MSW burned, which seems to be overestimated by the model. The resulting regression model was used as basis for a waste prognosis model (Beigl and Lebersorger, in preparation).

  8. Heat Integration and Heat Recovery at a Large Chemical Manufacturing Plant 

    E-Print Network [OSTI]

    Togna, K .A.

    2012-01-01

    is circulated to a flash drum, where it is cooled by flashing off 6 psig ?waste-heat? steam. Prior to implementation of this project, the flashed steam was vented to the atmosphere. The project proposed that the vented 6 psig steam be recovered..., while maximizing the production of cyclohexanone. The heated water is circulated to a flash drum where it is cooled by flashing off 6 psig ?waste heat? steam. The cooled water is then re- circulated back to the reactor. The mixture...

  9. Towards increased waste loading in high level waste glasses: Developing a better understanding of crystallization behavior

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Marra, James C.; Kim, Dong -Sang

    2014-12-18

    A number of waste components in US defense high level radioactive wastes (HLW) have proven challenging for current Joule heated ceramic melter (JCHM) operations and have limited the ability to increase waste loadings beyond already realized levels. Many of these ''troublesome'' waste species cause crystallization in the glass melt that can negatively impact product quality or have a deleterious effect on melter processing. Thus, recent efforts at US Department of Energy laboratories have focused on understanding crystallization behavior within HLW glass melts and investigating approaches to mitigate the impacts of crystallization so that increases in waste loading can be realized.more »Advanced glass formulations have been developed to highlight the unique benefits of next-generation melter technologies such as the Cold Crucible Induction Melter (CCIM). Crystal-tolerant HLW glasses have been investigated to allow sparingly soluble components such as chromium to crystallize in the melter but pass out of the melter before accumulating. The Hanford site AZ-101 tank waste composition represents a waste group that is waste loading limited primarily due to high concentrations of Fe2O3 (with higher Al2O3). Systematic glass formulation development utilizing slightly higher process temperatures and higher tolerance to spinel crystals demonstrated that an increase in waste loading of more than 20% could be achieved for this waste composition, and by extension higher loadings for wastes in the same group.« less

  10. Towards Increased Waste Loading in High Level Waste Glasses: Developing a Better Understanding of Crystallization Behavior

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Marra, James C. [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL); Kim, Dong -Sang [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2014-01-01

    A number of waste components in US defense high level radioactive wastes (HLW) have proven challenging for current Joule heated ceramic melter (JCHM) operations and have limited the ability to increase waste loadings beyond already realized levels. Many of these ''troublesome'' waste species cause crystallization in the glass melt that can negatively impact product quality or have a deleterious effect on melter processing. Recent efforts at US Department of Energy laboratories have focused on understanding crystallization behavior within HLW glass melts and investigating approaches to mitigate the impacts of crystallization so that increases in waste loading can be realized. Advanced glass formulations have been developed to highlight the unique benefits of next-generation melter technologies such as the Cold Crucible Induction Melter (CCIM). Crystal-tolerant HLW glasses have been investigated to allow sparingly soluble components such as chromium to crystallize in the melter but pass out of the melter before accumulating. The Hanford site AZ-101 tank waste composition represents a waste group that is waste loading limited primarily due to high concentrations of Fe2O3 (with higher Al2O3). Systematic glass formulation development utilizing slightly higher process temperatures and higher tolerance to spinel crystals demonstrated that an increase in waste loading of more than 20% could be achieved for this waste composition, and by extension higher loadings for wastes in the same group.

  11. Biohazardous Waste Disposal Guidelines Sharps Waste Solid Lab Waste Liquid Waste Animals Human

    E-Print Network [OSTI]

    Aluwihare, Lihini

    of biohazardous and chemical or radioactive waste), call Environment, Health & Safety: (858) 534Biohazardous Waste Disposal Guidelines Sharps Waste Solid Lab Waste Liquid Waste Animals Human Pathological Waste Description Biohazard symbol Address: UCSD 200 West Arbor Dr. San Diego, CA 92103 (858

  12. Small Buoys for Energy Harvesting : Experimental and Numerical Modeling Studies

    E-Print Network [OSTI]

    Grilli, Stéphan T.

    Small Buoys for Energy Harvesting : Experimental and Numerical Modeling Studies St´ephan T. Grilli for wave energy harvesting (free-floating or slackly moored), to produce about 1 KW per unit at full scale-contained (water tight) resonating multiple-spar buoy (or Starspar), in which a longer central spar houses the LEG

  13. FOR341 Timber Harvesting and Forest Roads Spring 2009

    E-Print Network [OSTI]

    Vonessen, Nikolaus

    FOR341 Timber Harvesting and Forest Roads Spring 2009 Instructor: Beth Dodson Office: FOR 201A Text: Water Quality BMPs (Best Management Practices) for Montana Forests Other readings as assigned (available in class folder: R:\\Classes\\Spring2009\\FOR341) Course Description: An overview of harvesting

  14. Department of Mechanical Engineering Fall 2011 Flowserve Vibration Energy Harvesting

    E-Print Network [OSTI]

    Demirel, Melik C.

    PENNSTATE Department of Mechanical Engineering Fall 2011 Flowserve Vibration Energy Harvesting of these vibrations, Flowseve is looking at using vibration absorbers coupled with energy harvesting technology a steady state DC output The prototype was created using water jet cutting and milling to create the parts

  15. Water is Theme For UNL at September's Husker Harvest Days

    E-Print Network [OSTI]

    Nebraska-Lincoln, University of

    Water is Theme For UNL at September's Husker Harvest Days University of Nebraska's Institute of Agriculture and Natural Resources (IANR) will highlight the latest in water research, education Harvest Days show in Grand Island this September. "We are very excited to be rolling out a very new look

  16. Table 1. HARVESTING MANAGEMENT STRATEGIES Strategy Name Use Typical location

    E-Print Network [OSTI]

    Table 1. HARVESTING MANAGEMENT STRATEGIES Strategy Name Use Typical location Harvesting strategies Unstable gullies with debris flow potential, unstable channels with high water transport, unstable fans by water flows Channels with high or moderate water transport potential Clean large woody debris /CLWD

  17. RESEARCH ARTICLE Estimation of forest harvesting-induced stream temperature

    E-Print Network [OSTI]

    Hinch, Scott G.

    RESEARCH ARTICLE Estimation of forest harvesting-induced stream temperature changes coastal British Columbia, Canada, were analyzed to assess the thermal effects of clearcut harvesting with no riparian buffer on a fish-bearing headwater stream. The approach used time series of daily mean water

  18. Demographic characteristics of southern flounder, Paralichthys lethostigma, harvested by an

    E-Print Network [OSTI]

    Scharf, Fred

    -level effects and negatively affect long-term fishery yield. K E Y W O R D S : age structure, fishing practices are captured in stationary gillnets and pound nets. Nearly all commercial harvest occurs in estuarine watersDemographic characteristics of southern flounder, Paralichthys lethostigma, harvested

  19. Energy Harvesting for Self-Powered Nanosystems Zhong Lin Wang

    E-Print Network [OSTI]

    Wang, Zhong L.

    Energy Harvesting for Self-Powered Nanosystems Zhong Lin Wang School of Materials Science In this article, an introduction is presented about the energy harvesting technologies that have potential. This is a potential technology for converting mechanical movement energy (such as body movement, muscle stretching

  20. RETURN TO THE RIVER -2000 Chapter 9 Harvest Management343343

    E-Print Network [OSTI]

    , in the production of electricity at hydroelectric dams, during and after logging operations, during and after and after some types of mining operations. Directed harvest For the past several human generations of the Columbia River basin's salmon. However the principles of sustainable harvest management (Beverton and Holt