National Library of Energy BETA

Sample records for temperature heat recovery

  1. Design manual. [High temperature heat pump for heat recovery system

    SciTech Connect (OSTI)

    Burch, T.E.; Chancellor, P.D.; Dyer, D.F.; Maples, G.

    1980-01-01

    The design and performance of a waste heat recovery system which utilizes a high temperature heat pump and which is intended for use in those industries incorporating indirect drying processes are described. It is estimated that use of this heat recovery system in the paper, pulp, and textile industries in the US could save 3.9 x 10/sup 14/ Btu/yr. Information is included on over all and component design for the heat pump system, comparison of prime movers for powering the compressor, control equipment, and system economics. (LCL)

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

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  3. 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.

  4. 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)

  5. High-Temperature Components for Rankine-Cycle-Based Waste Heat Recovery

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

    Systems on Combustion Engines | Department of Energy High-Temperature 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 Engines This poster reports on recent developments, achievements, and capabilities within a virtual environment to predict the dynamic behavior of the Rankine cycle within real driving cycles. p-11_janssens.pdf (168.59 KB) More Documents &

  6. Experimental investigation of a reticulated porous alumina heat exchanger for high temperature gas heat recovery

    SciTech Connect (OSTI)

    Banerjee, A; Chandran, RB; Davidson, JH

    2015-01-22

    The present study presents an experimental study of a prototype counter-flow heat exchanger designed to recover sensible heat from inert and reactive gases flowing through a high temperature solar reactor for splitting CO2. The tube-in-tube heat exchanger is comprised of two concentric alumina tubes, each filled with reticulated porous alumina with a nominal porosity of 80% and pore density of 5 pores per inch (ppi). The RPC provides high heat transfer surface area per unit volume (917 m(-1)) with low pressure drop. Measurements include the permeability, inertial coefficient, overall heat transfer coefficient, effectiveness and pressure drop. For laminar flow and an inlet gas temperature of 1240 K, the overall heat transfer coefficients are 36-41 W m(-2) K-1. The measured performance is in good agreement with a prior CFD model of the heat exchanger. (C) 2014 Elsevier Ltd. All rights reserved.

  7. Heat recovery casebook

    SciTech Connect (OSTI)

    Lawn, J.

    1980-10-01

    Plants and factories could apply a great variety of sources and uses for valuable waste heat. Applications may be evaluated on the basis of real use for a specific waste heat, high-enough temperature and quality of work, and feasibility of mechanical heat transfer method. Classification may be by temperature, application, heat-transfer equipment, etc. Many buildings and industrial processes lend themselves well to heat-recovery strategies. Five case histories describe successful systems used by the Continental Corporation Data Center; Nabisco, Inc.; Kasper Foundry Company; Seven Up Bottling Company of Indiana; and Lehr Precision Tool company. (DCK)

  8. Waste Heat Recovery

    Office of Environmental Management (EM)

    - PRE-DECISIONAL - DRAFT 1 Waste Heat Recovery 1 Technology Assessment 2 Contents 3 1. ... 2 4 1.1. Introduction to Waste Heat Recovery ......

  9. Heat recovery steam generator outlet temperature control system for a combined cycle power plant

    SciTech Connect (OSTI)

    Martens, A.; Myers, G.A.; McCarty, W.L.; Wescott, K.R.

    1986-04-01

    This patent describes a command cycle electrical power plant including: a steam turbine and at least one set comprising a gas turbine, an afterburner and a heat recovery steam generator having an attemperator for supplying from an outlet thereof to the steam turbine superheated steam under steam turbine operating conditions requiring predetermined superheated steam temperature, flow and pressure; with the gas turbine and steam turbine each generating megawatts in accordance with a plant load demand; master control means being provided for controlling the steam turbine and the heat recovery steam generator so as to establish the steam operating conditions; the combination of: first control means responsive to the gas inlet temperature of the heat recovery steam generator and to the plant load demand for controlling the firing of the afterburner; second control means responsive to the superheated steam predetermined temperature and to superheated steam temperature from the outlet for controlling the attemperator between a closed and an open position; the first and second control means being operated concurrently to maintain the superheated steam outlet temperature while controlling the load of the gas turbine independently of the steam turbine operating conditions.

  10. Waste Heat Recovery

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

    - PRE-DECISIONAL - DRAFT 1 Waste Heat Recovery 1 Technology Assessment 2 Contents 3 1. Introduction to the Technology/System ............................................................................................... 2 4 1.1. Introduction to Waste Heat Recovery .......................................................................................... 2 5 1.2. Challenges and Barriers for Waste Heat Recovery ..................................................................... 13 6 1.3. Public

  11. Wastewater heat recovery apparatus

    DOE Patents [OSTI]

    Kronberg, J.W.

    1992-09-01

    A heat recovery system is described with a heat exchanger and a mixing valve. A drain trap includes a heat exchanger with an inner coiled tube, baffle plate, wastewater inlet, wastewater outlet, cold water inlet, and preheated water outlet. Wastewater enters the drain trap through the wastewater inlet, is slowed and spread by the baffle plate, and passes downward to the wastewater outlet. Cold water enters the inner tube through the cold water inlet and flows generally upward, taking on heat from the wastewater. This preheated water is fed to the mixing valve, which includes a flexible yoke to which are attached an adjustable steel rod, two stationary zinc rods, and a pivoting arm. The free end of the arm forms a pad which rests against a valve seat. The rods and pivoting arm expand or contract as the temperature of the incoming preheated water changes. The zinc rods expand more than the steel rod, flexing the yoke and rotating the pivoting arm. The pad moves towards the valve seat as the temperature of the preheated water rises, and away as the temperature falls, admitting a variable amount of hot water to maintain a nearly constant average process water temperature. 6 figs.

  12. Wastewater heat recovery apparatus

    DOE Patents [OSTI]

    Kronberg, James W.

    1992-01-01

    A heat recovery system with a heat exchanger and a mixing valve. A drain trap includes a heat exchanger with an inner coiled tube, baffle plate, wastewater inlet, wastewater outlet, cold water inlet, and preheated water outlet. Wastewater enters the drain trap through the wastewater inlet, is slowed and spread by the baffle plate, and passes downward to the wastewater outlet. Cold water enters the inner tube through the cold water inlet and flows generally upward, taking on heat from the wastewater. This preheated water is fed to the mixing valve, which includes a flexible yoke to which are attached an adjustable steel rod, two stationary zinc rods, and a pivoting arm. The free end of the arm forms a pad which rests against a valve seat. The rods and pivoting arm expand or contract as the temperature of the incoming preheated water changes. The zinc rods expand more than the steel rod, flexing the yoke and rotating the pivoting arm. The pad moves towards the valve seat as the temperature of the preheated water rises, and away as the temperature falls, admitting a variable amount of hot water to maintain a nearly constant average process water temperature.

  13. [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.

  14. Secondary heat recovery from low-permeability high-temperature reservoir: A possible project in the Larderello Field, Italy

    SciTech Connect (OSTI)

    Gianelli, G.; Squarci, P.; Capocecera, P.

    1997-12-31

    A project of fracture stimulation and secondary heat recovery from the metamorphic reservoir of the Larderello geothermal field could be developed in a next future. Geological and geophysical data suggest that the stimulation can enhance permeability and that the water injection can be recovered as steam. In particular, the area of the project is characterized by the presence of an important seismic reflector which has been explained assuming the presence of fractured rocks filled with high pressure fluids. Extensional and hydraulic fractures can present at temperatures of 300-350{degrees}C, and this makes the experiment of extreme interest.

  15. 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 ...

  16. Heat recovery anti-icing system

    SciTech Connect (OSTI)

    Cummins, J.R.

    1982-05-11

    A heat recovery anti-icing system is disclosed. The heat recovery system includes a blower which removes air from the air flow path of a combustion turbine power generating system and circulates the air through a heat exchanger located in the exhaust stack of the combustion turbine. The heated air circulating through the heat exchanger is returned to an inlet filter compartment in the air flow path so as to maintain the temperature of the air in the inlet filter compartment at an elevated level.

  17. " "," ",,," Steam Turbines Supplied by Either Conventional or Fluidized Bed Boilers",,,"Conventional Combusion Turbines with Heat Recovery",,,"Combined-Cycle Combusion Turbines",,,"Internal Combusion Engines with Heat Recovery",,," Steam Turbines Supplied by Heat Recovered from High-Temperature Processes",,,," "

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

    3 Relative Standard Errors for Table 8.3;" " Unit: Percents." " "," ",,," Steam Turbines Supplied by Either Conventional or Fluidized Bed Boilers",,,"Conventional Combusion Turbines with Heat Recovery",,,"Combined-Cycle Combusion Turbines",,,"Internal Combusion Engines with Heat Recovery",,," Steam Turbines Supplied by Heat Recovered from High-Temperature Processes",,,," " " "," "

  18. ,,,"with Any"," Steam Turbines Supplied by Either Conventional or Fluidized Bed Boilers",,,"Conventional Combusion Turbines with Heat Recovery",,,"Combined-Cycle Combusion Turbines",,,"Internal Combusion Engines with Heat Recovery",,," Steam Turbines Supplied by Heat Recovered from High-Temperature Processes",,,," "

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

    3 Relative Standard Errors for Table 8.3;" " Unit: Percents." ,,,"Establishments" ,,,"with Any"," Steam Turbines Supplied by Either Conventional or Fluidized Bed Boilers",,,"Conventional Combusion Turbines with Heat Recovery",,,"Combined-Cycle Combusion Turbines",,,"Internal Combusion Engines with Heat Recovery",,," Steam Turbines Supplied by Heat Recovered from High-Temperature Processes",,,," "

  19. Nanostructured High Temperature Bulk Thermoelectric Energy Conversion for Efficient Waste Heat Recovery

    Broader source: Energy.gov [DOE]

    Proposed two-stage TEG system with half-heusler as the first stage, and Bi2Te3 as the low temperature stage expected to show a 5% fuel efficiency improvement in vehicle platform under US06 drive cycle

  20. Enhancing Heat Recovery for Thermoelectric Devices | Department...

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

    Heat Recovery for Thermoelectric Devices Enhancing Heat Recovery for Thermoelectric Devices Presentation given at the 16th Directions in Engine-Efficiency and Emissions Research ...

  1. 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...

  2. Drain-Water Heat Recovery | Department of Energy

    Energy Savers [EERE]

    Heat & Cool Water Heating Drain-Water Heat Recovery Drain-Water Heat Recovery Diagram of a drain water heat recovery system. Diagram of a drain water heat recovery system. ...

  3. Heat pipes for industrial waste heat recovery

    SciTech Connect (OSTI)

    Merrigan, M.A.

    1981-01-01

    Development work on the high temperature ceramic recuperator at Los Alamos National Laboratory is described and involved material investigations, fabrication methods development, compatibility tests, heat pipe operation, and the modeling of application conditions based on current industrial usage. Solid ceramic heat pipes, ceramic coated refractory pipes, and high-temperature oxide protected metallic pipes have been investigated. Economic studies of the use of heat-pipe based recuperators in industrial furnaces have been conducted and payback periods determined as a function of material, fabrication, and installation cost.

  4. 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.

  5. 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, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). deer07_nelson.pdf (295.89 KB) More Documents & Publications Exhaust Energy Recovery Exhaust Energy Recovery Exhaust Energy Recovery

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

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

    More Documents & Publications Development of Thermoelectric Technology for Automotive Waste Heat Recovery Develop Thermoelectric Technology for Automotive Waste Heat Recovery ...

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

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

    More Documents & Publications Diesel Engine Waste Heat Recovery Utilizing Electric Trubocompound Technology Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound ...

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

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

    More Documents & Publications Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound Technology Diesel Engine Waste Heat Recovery Utilizing Electric Trubocompound ...

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

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

    More Documents & Publications Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound Technology Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound ...

  10. Drain-Water Heat Recovery | Department of Energy

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

    Heat & Cool Water Heating Drain-Water Heat Recovery ... Diagram of a drain water heat recovery system. Any hot water ... Drain-water (or greywater) heat recovery systems capture ...

  11. Wastewater heat recovery method and apparatus

    DOE Patents [OSTI]

    Kronberg, J.W.

    1991-01-01

    This invention is comprised of a heat recovery system with a heat exchanger and a mixing valve. A drain trap includes a heat exchanger with an inner coiled tube, baffle plate, wastewater inlet, wastewater outlet, cold water inlet, and preheated water outlet. Wastewater enters the drain trap through the wastewater inlet, is slowed and spread by the baffle plate, and passes downward to the wastewater outlet. Cold water enters the inner tube through the cold water inlet and flows generally upward, taking on heat from the wastewater. This preheated water is fed to the mixing valve, which includes a flexible yoke to which are attached an adjustable steel rod, two stationary zinc rods, and a pivoting arm. The free end of the arm forms a pad which rests against a valve seat. The rods and pivoting arm expand or contract as the temperature of the incoming preheated water changes. The zinc rods expand more than the steel rod, flexing the yoke and rotating the pivoting arm. The pad moves towards the valve seat as the temperature of the preheated water rises, and away as the temperature falls, admitting a variable amount of hot water to maintain a nearly constant average process water temperature.

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

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

    Air Products and Chemicals, Inc. - Allentown, PA A microbial reverse electrodialysis technology ... Bio-Electrochemical Integration of Waste Heat Recovery, Waste-To-Energy Conversion, ...

  13. Thermoelectric Waste Heat Recovery Program for Passenger Vehicles |

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

    High Efficiency Hybrid Vehicles | Department of Energy This project discusses preliminary experimental results to find how thermoelectrics can be applied ot future hybrid vehicles and the optimum design of such equipment using heat pipes deer09_kim.pdf (628.26 KB) More Documents & Publications Low and high Temperature Dual Thermoelectric Generation Waste Heat Recovery System for Light-Duty Vehicles A Thermoelectric Generator with an Intermediate Heat Exchanger for Automotive Waste Heat

  14. 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.

  15. Getting the correct data. [Eros Data Center heat recovery system

    SciTech Connect (OSTI)

    Not Available

    1985-03-01

    The Eros Data Center Heat Recovery System is a merging of the computer room air conditioning system with the building heating, ventilation and air conditioning system in such a way as to utilize the heat off the computers to heat the building. The 6,000 sq. ft. computer room contains three computers and two high resolution film laser recorders. Computer room air conditioners are switched from free cooling chilled water cooling tower mode to compresser heat recovery, according to outside air temperature and the temperature of the condensing loop. Any excess heat in the condenser loop over 90 F is expelled by the computer, opening the outside air dampers, and lowering mixed air temperatures.

  16. Proactive Design of n-Type (In, Ce) Filled Skutterudites Enabling High-Temperature Waste Heat Recovery

    Broader source: Energy.gov [DOE]

    Thermoelectric and structural properties of n-type (In, Ce) filled skutterudites including power factors and ZT as a function of temperature are presented

  17. List of Heat recovery Incentives | Open Energy Information

    Open Energy Info (EERE)

    Heat Solar Thermal Electric Solar Thermal Process Heat Solar Water Heat Energy Storage Nuclear Wind Heat recovery Fuel Cells using Renewable Fuels No Agricultural Energy Efficiency...

  18. 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 ...

  19. High Efficiency Microturbine with Integral Heat Recovery - Fact...

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

    High Efficiency Microturbine with Integral Heat Recovery - Fact Sheet, 2014 High Efficiency Microturbine with Integral Heat Recovery - Fact Sheet, 2014 Capstone Turbine...

  20. Wastewater heat recovery method and apparatus (Patent) | DOEPatents

    Office of Scientific and Technical Information (OSTI)

    Wastewater heat recovery method and apparatus Title: Wastewater heat recovery method and apparatus You are accessing a document from the Department of Energy's (DOE) DOE ...

  1. 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 ...

  2. Property:Heat Recovery Utility | Open Energy Information

    Open Energy Info (EERE)

    search Property Name Heat Recovery Utility Property Type Page Description The purpose of Distributed Generation heat recovery This is a property of type Page. Retrieved from...

  3. Combined heat recovery and make-up water heating system

    SciTech Connect (OSTI)

    Kim, S.Y.

    1988-05-24

    A cogeneration plant is described comprising in combination: a first stage source of hot gas; a duct having an inlet for receiving the hot gas and an outlet stack open to the atmosphere; a second stage recovery heat steam generator including an evaporator situated in the duct, and economizer in the duct downstream of the evaporator, and steam drum fluidly connected to the evaporator and the economizer; feedwater supply means including a deaerator heater and feedwater pump for supplying deaerated feedwater to the steam drum through the economizer; makeup water supply means including a makeup pump for delivering makeup water to the deaerator heater; means fluidly connected to the steam drum for supplying auxiliary steam to the deaerator heater; and heat exchanger means located between the deaerator and the economizer, for transferring heat from the feedwater to the makeup water, thereby increasing the temperature of the makeup water delivered to the deaerator and decreasing the temperature of the feedwater delivered to the economizer, without fluid exchange.

  4. Method for controlling exhaust gas heat recovery systems in vehicles

    DOE Patents [OSTI]

    Spohn, Brian L.; Claypole, George M.; Starr, Richard D

    2013-06-11

    A method of operating a vehicle including an engine, a transmission, an exhaust gas heat recovery (EGHR) heat exchanger, and an oil-to-water heat exchanger providing selective heat-exchange communication between the engine and transmission. The method includes controlling a two-way valve, which is configured to be set to one of an engine position and a transmission position. The engine position allows heat-exchange communication between the EGHR heat exchanger and the engine, but does not allow heat-exchange communication between the EGHR heat exchanger and the oil-to-water heat exchanger. The transmission position allows heat-exchange communication between the EGHR heat exchanger, the oil-to-water heat exchanger, and the engine. The method also includes monitoring an ambient air temperature and comparing the monitored ambient air temperature to a predetermined cold ambient temperature. If the monitored ambient air temperature is greater than the predetermined cold ambient temperature, the two-way valve is set to the transmission position.

  5. Exhaust bypass flow control for exhaust heat recovery

    DOE Patents [OSTI]

    Reynolds, Michael G.

    2015-09-22

    An exhaust system for an engine comprises an exhaust heat recovery apparatus configured to receive exhaust gas from the engine and comprises a first flow passage in fluid communication with the exhaust gas and a second flow passage in fluid communication with the exhaust gas. A heat exchanger/energy recovery unit is disposed in the second flow passage and has a working fluid circulating therethrough for exchange of heat from the exhaust gas to the working fluid. A control valve is disposed downstream of the first and the second flow passages in a low temperature region of the exhaust heat recovery apparatus to direct exhaust gas through the first flow passage or the second flow passage.

  6. Develop Thermoelectric Technology for Automotive Waste Heat Recovery

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  7. Diesel Engine Waste Heat Recovery Utilizing Electric Trubocompound

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

    Technology | Department of Energy Trubocompound Technology Diesel Engine Waste Heat Recovery Utilizing Electric Trubocompound Technology 2003 DEER Conference Presentation: Caterpillar Inc. 2003_deer_algrain.pdf (5.77 MB) More Documents & Publications Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound Technology Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound Technology An Engine System Approach to Exhaust Waste Heat Recovery

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

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

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

  9. Cascade heat recovery with coproduct gas production

    DOE Patents [OSTI]

    Brown, W.R.; Cassano, A.A.; Dunbobbin, B.R.; Rao, P.; Erickson, D.C.

    1986-10-14

    A process for the integration of a chemical absorption separation of oxygen and nitrogen from air with a combustion process is set forth wherein excess temperature availability from the combustion process is more effectively utilized to desorb oxygen product from the absorbent and then the sensible heat and absorption reaction heat is further utilized to produce a high temperature process stream. The oxygen may be utilized to enrich the combustion process wherein the high temperature heat for desorption is conducted in a heat exchange preferably performed with a pressure differential of less than 10 atmospheres which provides considerable flexibility in the heat exchange. 4 figs.

  10. Cascade heat recovery with coproduct gas production

    DOE Patents [OSTI]

    Brown, William R.; Cassano, Anthony A.; Dunbobbin, Brian R.; Rao, Pradip; Erickson, Donald C.

    1986-01-01

    A process for the integration of a chemical absorption separation of oxygen and nitrogen from air with a combustion process is set forth wherein excess temperature availability from the combustion process is more effectively utilized to desorb oxygen product from the absorbent and then the sensible heat and absorption reaction heat is further utilized to produce a high temperature process stream. The oxygen may be utilized to enrich the combustion process wherein the high temperature heat for desorption is conducted in a heat exchange preferably performed with a pressure differential of less than 10 atmospheres which provides considerable flexibility in the heat exchange.

  11. Philip District Heating District Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Philip District Heating District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Philip District Heating District Heating Low Temperature Geothermal...

  12. Kethcum District Heating District Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Kethcum District Heating District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Kethcum District Heating District Heating Low Temperature Geothermal...

  13. Midland District Heating District Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Midland District Heating District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Midland District Heating District Heating Low Temperature Geothermal...

  14. 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.

  15. Rankine cycle waste heat recovery system

    DOE Patents [OSTI]

    Ernst, Timothy C.; Nelson, Christopher R.

    2016-05-10

    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.

  16. Drain-Water Heat Recovery | Department of Energy

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

    Heat & Cool » Water Heating » Drain-Water Heat Recovery Drain-Water Heat Recovery Diagram of a drain water heat recovery system. Diagram of a drain water heat recovery system. Any hot water that goes down the drain carries away energy with it. That's typically 80%-90% of the energy used to heat water in a home. Drain-water (or greywater) heat recovery systems capture this energy from water you've already used (for example, to shower, wash dishes, or wash clothing) to preheat cold water

  17. Recovery of Water from Boiler Flue Gas Using Condensing Heat...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Recovery of Water from Boiler Flue Gas Using Condensing Heat Exchangers Citation Details In-Document Search Title: Recovery of Water from Boiler Flue Gas Using ...

  18. ITP Energy Intensive Processes: Improved Heat Recovery in Biomass...

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

    Improved Heat Recovery in Biomass-Fired Boilers ITP Energy Intensive Processes: Improved Heat Recovery in Biomass-Fired Boilers biomass-firedboilers.pdf (177.31 KB) More Documents ...

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

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

    Skutterudite Thermoelectric Generator For Automotive Waste Heat Recovery Thermoelectric Conversion of Exhaust Gas Waste Heat into Usable Electricity Development of Cost-Competitive ...

  20. 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 10C 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. GMs 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.

  1. Use Feedwater Economizers for Waste Heat Recovery | Department of Energy

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

    Feedwater Economizers for Waste Heat Recovery Use Feedwater Economizers for Waste Heat Recovery This 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. STEAM TIP SHEET #3 Use Feedwater Economizers for Waste Heat Recovery (January 2012) (381.06 KB) More Documents & Publications Consider Installing a Condensing Economizer Considerations When Selecting a Condensing Economizer

  2. 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 Engineering and Materials for Automotive Thermoelectric Applications Electrical ...

  3. [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.

  4. Development of Thermoelectric Technology for Automotive Waste Heat Recovery

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

    | Department of Energy Thermoelectric Technology for Automotive Waste Heat Recovery Development of Thermoelectric Technology for Automotive Waste Heat Recovery Overview and status of project to develop thermoelectric generator for automotive waste heat recovery and achieve at least 10% fuel economy improvement. deer08_gundlach.pdf (1 MB) More Documents & Publications Opportunities and Challenges of Thermoelectrlic Waste Heat Recovery in the Automotive Industry Develop Thermoelectric

  5. Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound

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

    Technology | Department of Energy 2 DEER Conference Presentation: Caterpillar Inc. 2002_deer_hopmann.pdf (828.29 KB) More Documents & Publications Diesel Engine Waste Heat Recovery Utilizing Electric Turbocompound Technology Diesel Engine Waste Heat Recovery Utilizing Electric Trubocompound Technology An Engine System Approach to Exhaust Waste Heat Recovery

  6. Pagosa Springs District Heating District Heating Low Temperature...

    Open Energy Info (EERE)

    Pagosa Springs District Heating District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Pagosa Springs District Heating District Heating Low...

  7. 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.

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

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

    for Heating | Department of Energy An Information Dependant Computer Program for Engine Exhaust Heat Recovery for Heating An Information Dependant Computer Program for Engine Exhaust Heat Recovery for Heating 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. deer09_avadhanula.pdf (95.11 KB) More Documents & Publications Modular Low Cost High Energy Exhaust Heat

  9. Waste Heat Reduction and Recovery for Improving Furnace Efficiency,

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

    Productivity and Emissions Performance: A BestPractices Process Heating Technical Brief | Department of Energy Waste Heat Reduction and Recovery for Improving Furnace Efficiency, Productivity and Emissions Performance: A BestPractices Process Heating Technical Brief Waste Heat Reduction and Recovery for Improving Furnace Efficiency, Productivity and Emissions Performance: A BestPractices Process Heating Technical Brief This technical brief is a guide to help plant operators reduce waste heat

  10. LOW TEMPERATURE GEOTHERMAL MINERAL RECOVERY PROGRAM 02/11/2014...

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

    LOW TEMPERATURE GEOTHERMAL MINERAL RECOVERY PROGRAM 02112014 LOW TEMPERATURE GEOTHERMAL MINERAL RECOVERY PROGRAM 02112014 mineral-webinar.pdf (3.45 MB) More Documents & ...

  11. Opportunities and Challenges of Thermoelectrlic Waste Heat Recovery in the

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

    Automotive Industry | Department of Energy and Challenges of Thermoelectrlic Waste Heat Recovery in the Automotive Industry Opportunities and Challenges of Thermoelectrlic Waste Heat Recovery in the Automotive Industry 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005_deer_yang.pdf (803.83 KB) More Documents & Publications Development of Thermoelectric Technology for Automotive Waste Heat Recovery Develop Thermoelectric Technology for Automotive

  12. High Temperature Heat Exchanger Project

    SciTech Connect (OSTI)

    Anthony E. Hechanova, Ph.D.

    2008-09-30

    The UNLV Research Foundation assembled a research consortium for high temperature heat exchanger design and materials compatibility and performance comprised of university and private industry partners under the auspices of the US DOE-NE Nuclear Hydrogen Initiative in October 2003. The objectives of the consortium were to conduct investigations of candidate materials for high temperature heat exchanger componets in hydrogen production processes and design and perform prototypical testing of heat exchangers. The initial research of the consortium focused on the intermediate heat exchanger (located between the nuclear reactor and hydrogen production plan) and the components for the hydrogen iodine decomposition process and sulfuric acid decomposition process. These heat exchanger components were deemed the most challenging from a materials performance and compatibility perspective

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

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

    Develop thermoelectric technology for waste heat recovery with a 10% fuel economy ... Engineering and Materials for Automotive Thermoelectric Applications Electrical and ...

  14. 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 Thermoelectric ...

  15. High Efficiency Microturbine with Integral Heat Recovery - Presentatio...

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

    - Presentation by Capstone Turbine Corporation, June 2011 High Efficiency Microturbine with Integral Heat Recovery - Presentation by Capstone Turbine Corporation, June 2011 ...

  16. natural gas+ condensing flue gas heat recovery+ water creation...

    Open Energy Info (EERE)

    natural gas+ condensing flue gas heat recovery+ water creation+ CO2 reduction+ cool exhaust gases+ Energy efficiency+ commercial building energy efficiency+ industrial energy...

  17. DOE Offers $15 Million Geothermal Heat Recovery Opportunity ...

    Energy Savers [EERE]

    DOE Offers 15 Million Geothermal Heat Recovery Opportunity August 25, 2010 - 11:11am Addthis Photo of geothermal power plant. DOE's Geothermal Technologies Program announced on ...

  18. High Efficiency Microturbine with Integral Heat Recovery - Fact...

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

    High Efficiency Microturbine with Integral Heat Recovery - Fact Sheet, 2014 Capstone Turbine Corporation, in collaboration with Oak Ridge National Laboratory and NASA Glenn ...

  19. Low-Temperature Mineral Recovery Program FOA Selections

    Office of Energy Efficiency and Renewable Energy (EERE)

    Energy Department's geothermal technologies office awarded nine projects in low-temperature and mineral recovery.

  20. Final Report, Materials for Industrial Heat Recovery Systems, Tasks 3 and 4 Materials for Heat Recovery in Recovery Boilers

    SciTech Connect (OSTI)

    Keiser, James R.; Kish, Joseph R.; Singh, Preet M.; Sarma, Gorti B.; Yuan, Jerry; Gorog, J. Peter; Frederick, Laurie A.; Jette, Francois R.; Meisner, Roberta A.; Singbeil, Douglas L.

    2007-12-31

    The DOE-funded project on materials for industrial heat recovery systems included four research tasks: materials for aluminum melting furnace recuperator tubes, materials and operational changes to prevent cracking and corrosion of the co-extruded tubes that form primary air ports in black liquor recovery boilers, the cause of and means to prevent corrosion of carbon steel tubes in the mid-furnace area of recovery boilers, and materials and operational changes to prevent corrosion and cracking of recovery boiler superheater tubes. Results from studies on the latter two topics are given in this report while separate reports on results for the first two tasks have already been published. Accelerated, localized corrosion has been observed in the mid-furnace area of kraft recovery boilers. This corrosion of the carbon steel waterwall tubes is typically observed in the vicinity of the upper level of air ports where the stainless clad co-extruded wall tubes used in the lower portion of the boiler are welded to the carbon steel tubes that extend from this transition point or “cut line” to the top of the boiler. Corrosion patterns generally vary from one boiler to another depending on boiler design and operating parameters, but the corrosion is almost always found within a few meters of the cut line and often much closer than that. This localized corrosion results in tube wall thinning that can reach the level where the integrity of the tube is at risk. Collection and analysis of gas samples from various areas near the waterwall surface showed reducing and sulfidizing gases were present in the areas where corrosion was accelerated. However, collection of samples from the same areas at intervals over a two year period showed the gaseous environment in the mid-furnace section can cycle between oxidizing and reducing conditions. These fluctuations are thought to be due to gas flow instabilities and they result in an unstable or a less protective scale on the carbon steel

  1. Lakeview Residences Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Lakeview Residences Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Lakeview Residences Space Heating Low Temperature Geothermal Facility...

  2. Litchfield Correctional Center District Heating Low Temperature...

    Open Energy Info (EERE)

    Litchfield Correctional Center District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Litchfield Correctional Center District Heating Low Temperature...

  3. Savings Project: Lower Water Heating Temperature | Department...

    Energy Savers [EERE]

    Lower Water Heating Temperature Savings Project: Lower Water Heating Temperature Addthis Project Level Easy Energy Savings 12-30 annually for each 10F reduction Time to ...

  4. Manzanita Estates District Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Manzanita Estates District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Manzanita Estates District Heating Low Temperature Geothermal Facility...

  5. Low-temperature central heating

    SciTech Connect (OSTI)

    Colonna, A.; Dore, B.

    1982-01-01

    As more efficient condensing boilers are introduced and as more homeowners install effective insulation, engineers should consider two possibilities when designing new central-heating systems - the use of properly sized radiators operating at moderate water temperatures (100-120/sup 0/F) and the installation of heating systems under the floor, which ensures that the space heat is evenly distributed. In field tests, low-temperature radiators performed better than conventional models, with no significant adverse effect on comfort levels. G.D.F. also examined floating-late floor heaters, which incorporate an insulated concrete plate supporting a coiled, imbedded network of tubes with a floating concrete plate on top. Their essential advantages is the freeing of more living space to the occupants. Their use is recommended in multifamily dwelling rather than individual homes.

  6. Vehicle Fuel Economy Improvement through Thermoelectric Waste Heat Recovery

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

    | Department of Energy Fuel Economy Improvement through Thermoelectric Waste Heat Recovery Vehicle Fuel Economy Improvement through Thermoelectric Waste Heat Recovery 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005_deer_crane.pdf (549.96 KB) More Documents & Publications Potential of Thermoelectrics forOccupant Comfort and Fuel Efficiency Gains in Vehicle Applications Automotive Waste Heat Conversion to Electric Power using Skutterudites, TAGS,

  7. Vehicle Technologies Office: Waste Heat Recovery | Department of Energy

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

    Fuel Efficiency & Emissions » Vehicle Technologies Office: Waste Heat Recovery Vehicle Technologies Office: Waste Heat Recovery Along with high efficiency engine technologies and emission control, the Vehicle Technologies Office (VTO) is supporting research and development to increase vehicle fuel economy by recovering energy from engine waste heat. In current gasoline vehicles, only about 25 percent of the fuel's energy is used to drive the wheels; in contrast, more than 70 percent is lost

  8. Open-loop heat-recovery dryer

    DOE Patents [OSTI]

    TeGrotenhuis, Ward Evan

    2013-11-05

    A drying apparatus is disclosed that includes a drum and an open-loop airflow pathway originating at an ambient air inlet, passing through the drum, and terminating at an exhaust outlet. A passive heat exchanger is included for passively transferring heat from air flowing from the drum toward the exhaust outlet to air flowing from the ambient air inlet toward the drum. A heat pump is also included for actively transferring heat from air flowing from the passive heat exchanger toward the exhaust outlet to air flowing from the passive heat exchanger toward the drum. A heating element is also included for further heating air flowing from the heat pump toward the drum.

  9. LOW TEMPERATURE GEOTHERMAL MINERAL RECOVERY PROGRAM | Department of Energy

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

    LOW TEMPERATURE GEOTHERMAL MINERAL RECOVERY PROGRAM LOW TEMPERATURE GEOTHERMAL MINERAL RECOVERY PROGRAM mineral-webinar.pdf (3.45 MB) More Documents & Publications LOW TEMPERATURE GEOTHERMAL MINERAL RECOVERY PROGRAM 02/11/2014 Geothermal Play Fairway Analysis Geothermal Play Fairway Analysis

  10. 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 Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research ...

  11. Recovery Act-Funded Geothermal Heat Pump projects

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy (DOE) was allocated funding from the American Recovery and Reinvestment Act to conduct research into ground source heat pump technologies and applications. Projects...

  12. High Efficiency Microturbine with Integral Heat Recovery - Fact Sheet, 2016

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

    | Department of Energy High Efficiency Microturbine with Integral Heat Recovery - Fact Sheet, 2016 High Efficiency Microturbine with Integral Heat Recovery - Fact Sheet, 2016 Capstone Turbine Corporation, in collaboration with Oak Ridge National Laboratory and NASA Glenn Research Center, developed a clean, cost-effective 370 kW microturbine with 42% net electrical efficiency and 85% total CHP efficiency. The microturbine technology maximizes usable exhaust energy and achieves ultra-low

  13. High Efficiency Microturbine with Integral Heat Recovery | Department of

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

    Energy High Efficiency Microturbine with Integral Heat Recovery High Efficiency Microturbine with Integral Heat Recovery Introduction The U.S. economic market potential for distributed generation is significant. This market, however, remains mostly untapped in the commercial and small industrial buildings that are well suited for microturbines. Gas turbines have many advantages, including high power density, light weight, clean emissions, fuel flexibility, low vibration, low maintenance,

  14. 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.

  15. Ch. VII, Temperature, heat flow maps and temperature gradient...

    Open Energy Info (EERE)

    Report: Ch. VII, Temperature, heat flow maps and temperature gradient holes Author T. G. Zacharakis Editor T. G. Zacharakis Published Colorado Geological Survey in Cooperation...

  16. Temperature, heat flow maps and temperature gradient holes |...

    Open Energy Info (EERE)

    to library Report: Temperature, heat flow maps and temperature gradient holes Author T. G. Zacharakis Organization Colorado Geological Survey in Cooperation with the U.S....

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

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  18. Install Waste Heat Recovery Systems for Fuel-Fired Furnaces | Department of

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

    Energy Waste Heat Recovery Systems for Fuel-Fired Furnaces Install Waste Heat Recovery Systems for Fuel-Fired Furnaces This tip sheet recommends installing waste heat recovery systems for fuel-fired furnaces to increase the energy efficiency of process heating systems. PROCESS HEATING TIP SHEET #8 Install Waste Heat Recovery Systems for Fuel-Fired Furnaces (September 2005) (280.81 KB) More Documents & Publications Load Preheating Using Flue Gases from a Fuel-Fired Heating System Using

  19. 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.

  20. Distributed Generation with Heat Recovery and Storage

    SciTech Connect (OSTI)

    Siddiqui, Afzal S.; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

    2006-06-16

    Electricity produced by distributed energy resources (DER)located close to end-use loads has the potential to meet consumerrequirements more efficiently than the existing centralized grid.Installation of DER allows consumers to circumvent the costs associatedwith transmission congestion and other non-energy costs of electricitydelivery and potentially to take advantage of market opportunities topurchase energy when attractive. On-site, single-cycle thermal powergeneration is typically less efficient than central station generation,but by avoiding non-fuel costs of grid power and by utilizing combinedheat and power (CHP) applications, i.e., recovering heat from small-scaleon-site thermal generation to displace fuel purchases, DER can becomeattractive to a strictly cost-minimizing consumer. In previous efforts,the decisions facing typical commercial consumers have been addressedusing a mixed-integer linear program, the DER Customer Adoption Model(DER-CAM). Given the site s energy loads, utility tariff structure, andinformation (both technical and financial) on candidate DER technologies,DER-CAM minimizes the overall energy cost for a test year by selectingthe units to install and determining their hourly operating schedules. Inthis paper, the capabilities of DER-CAM are enhanced by the inclusion ofthe option to store recovered low-grade heat. By being able to keep aninventory of heat for use in subsequent periods, sites are able to lowercosts even further by reducing lucrative peak-shaving generation whilerelying on storage to meet heat loads. This and other effects of storageare demonstrated by analysis of five typical commercial buildings in SanFrancisco, California, USA, and an estimate of the cost per unit capacityof heat storage is calculated.

  1. Distributed Generation with Heat Recovery and Storage

    SciTech Connect (OSTI)

    Siddiqui, Afzal; Marnay, Chris; Firestone, Ryan M.; Zhou, Nan

    2005-07-29

    Electricity generated by distributed energy resources (DER) located close to end-use loads has the potential to meet consumer requirements more efficiently than the existing centralized grid. Installation of DER allows consumers to circumvent the costs associated with transmission congestion and other non-energy costs of electricity delivery and potentially to take advantage of market opportunities to purchase energy when attractive. On-site thermal power generation is typically less efficient than central station generation, but by avoiding non-fuel costs of grid power and utilizing combined heat and power (CHP) applications, i.e., recovering heat from small-scale on-site generation to displace fuel purchases, then DER can become attractive to a strictly cost-minimizing consumer. In previous efforts, the decisions facing typical commercial consumers have been addressed using a mixed-integer linear programme, the DER Customer Adoption Model(DER-CAM). Given the site s energy loads, utility tariff structure, and information (both technical and financial) on candidate DER technologies, DER-CAM minimizes the overall energy cost for a test year by selecting the units to install and determining their hourly operating schedules. In this paper, the capabilities of DER-CAM are enhanced by the inclusion of the option to store recovered low-grade heat. By being able to keep an inventory of heat for use in subsequent periods, sites are able to lower costs even further by reducing off-peak generation and relying on storage. This and other effects of storages are demonstrated by analysis of five typical commercial buildings in San Francisco, California, and an estimate of the cost per unit capacity of heat storage is calculated.

  2. Quantum Well Thermoelectrics and Waste Heat Recovery | Department...

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

    High-Efficiency Quantum-Well Thermoelectrics for Waste Heat Power Generation Recent Progress in the Development of High Efficiency Thermoelectrics High Temperature Thermoelectric ...

  3. 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.

  4. Develop Thermoelectric Technology for Automotive Waste Heat Recovery |

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

    | Department of Energy Emerging Technologies Project for the 2013 Building Technologies Office's Program Peer Review emrgtech06_reedy_040213.pdf (403.24 KB) More Documents & Publications Working Fluids Low Global Warming Potential Refrigerants - 2013 Peer Review Multi-Function Fuel-Fired Heat Pump - 2013 Peer Review Buildings Performance Database - 2013 BTO Peer Review Department of Energy

    Develop thermoelectric technology for waste heat recovery with a 10% fuel economy

  5. Develop Thermoelectric Technology for Automotive Waste Heat Recovery |

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

    Department of Energy 09 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. ace_45_yang.pdf (1.15 MB) More Documents & Publications Develop Thermoelectric Technology for Automotive Waste Heat Recovery Engineering and Materials for Automotive Thermoelectric Applications Solid-State Energy Conversion Overview

  6. Heat recovery and seed recovery development project: preliminary design report (PDR)

    SciTech Connect (OSTI)

    Arkett, A. H.; Alexander, K. C.; Bolek, A. D.; Blackman, B. K.; Kurrle, P. E.; Tram, S. V.; Warren, A. M.; Ziobrowski, A. J.

    1981-06-01

    The preliminary design and performance characteristics are described of the 20 MWt heat recovery and seed recovery (HRSR) system to be fabricated, installed, and evaluated to provide a technological basis for the design of commercial size HRSR systems for coal-fired open-cycle MHD power plants. The system description and heat and material balances, equipment description and functional requirements, controls, interfacing systems, and operation and maintenance are detailed. Appendices include: (1) recommended environmental requirements for compliance with federal and state of Tennessee regulations, (2) channel and diffuser simulator, (3) equipment arrangement drawings, and (4) channel and diffuser simulator barrel drawings. (WHK)

  7. Waste Heat Recovery. Technology and Opportunities in U.S. Industry

    SciTech Connect (OSTI)

    Johnson, Ilona; Choate, William T.; Davidson, Amber

    2008-03-01

    This study was initiated in order to evaluate RD&D needs for improving waste heat recovery technologies. A bottomup approach is used to evaluate waste heat quantity, quality, recovery practices, and technology barriers in some of the largest energyconsuming units in U.S. manufacturing. The results from this investigation serve as a basis for understanding the state of waste heat recovery and providing recommendations for RD&D to advance waste heat recovery technologies.

  8. Geothermal Energy Production With Innovative Methods Of Geothermal Heat Recovery

    SciTech Connect (OSTI)

    Swenson, Allen; Darlow, Rick; Sanchez, Angel; Pierce, Michael; Sellers, Blake

    2014-12-19

    The ThermalDrive™ Power System (“TDPS”) offers one of the most exciting technological advances in the geothermal power generation industry in the last 30 years. Using innovations in subsurface heat recovery methods, revolutionary advances in downhole pumping technology and a distributed approach to surface power production, GeoTek Energy, LLC’s TDPS offers an opportunity to change the geothermal power industry dynamics.

  9. Optimal recovery of the solution of the heat equation from inaccurate data

    SciTech Connect (OSTI)

    Magaril-Il'yaev, G G; Osipenko, Konstantin Yu

    2009-06-30

    The problem of optimal recovery of the solution of the heat equation in the entire space at a fixed instant of time from inaccurate observations of this solution at some other instants of time is investigated. Explicit expressions for an optimal recovery method and its error are given. The solution of a similar problem with a priori information about the temperature distribution at some instants of time is also given. In all cases the optimal method uses information about at most two observations. Bibliography: 22 titles.

  10. IEA Annex 26: Advanced Supermarket Refrigeration/Heat Recovery Systems

    SciTech Connect (OSTI)

    Baxter, VAN

    2003-05-19

    With increased concern about the impact of refrigerant leakage on global warming, a number of new supermarket refrigeration system configurations requiring significantly less refrigerant charge are being considered. In order to help promote the development of advanced systems and expand the knowledge base for energy-efficient supermarket technology, the International Energy Agency (IEA) established IEA Annex 26 (Advanced Supermarket Refrigeration/Heat Recovery Systems) under the ''IEA Implementing Agreement on Heat Pumping Technologies''. Annex 26 focuses on demonstrating and documenting the energy saving and environmental benefits of advanced systems design for food refrigeration and space heating and cooling for supermarkets. Advanced in this context means systems that use less energy, require less refrigerant and produce lower refrigerant emissions. Stated another way, the goal is to identify supermarket refrigeration and HVAC technology options that reduce the total equivalent warming impact (TEWI) of supermarkets by reducing both system energy use (increasing efficiency) and reducing total refrigerant charge. The Annex has five participating countries: Canada, Denmark, Sweden, the United Kingdom, and the United States. The working program of the Annex has involved analytical and experimental investigation of several candidate system design approaches to determine their potential to reduce refrigerant usage and energy consumption. Advanced refrigeration system types investigated include the following: distributed compressor systems--small parallel compressor racks are located in close proximity to the food display cases they serve thus significantly shortening the connecting refrigerant line lengths; secondary loop systems--one or more central chillers are used to refrigerate a secondary coolant (e.g. brine, ice slurry, or CO2) that is pumped to the food display cases on the sales floor; self-contained display cases--each food display case has its own

  11. ITP Energy Intensive Processes: Improved Heat Recovery in Biomass-Fired Boilers

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

    INDUSTRIAL TECHNOLOGIES PROGRAM Improved Heat Recovery in Biomass-Fired Boilers Reducing Superheater Corrosion to Enable Maximum Energy Effi ciency This project will develop materials and coatings to reduce corrosion and improve the life span of boiler superheater tubes exposed to high-temperature biomass exhaust. This improvement in boiler ef ciency will reduce fuel consumption, fuel cost, and CO 2 emissions. Introduction Industrial boilers are commonly used to make process steam, provide

  12. Salinity, temperature, oil composition, and oil recovery by waterflooding

    SciTech Connect (OSTI)

    Tang, G.Q.; Morrow, N.R.

    1997-11-01

    The effect of aging and displacement temperatures and brine and oil composition on wettability and the recovery of crude oil by spontaneous imbibition and waterflooding has been investigated. This study is based on displacement tests in Berea sandstone with three crude oils and three reservoir brines (RB`s). Salinity was varied by changing the concentration of total dissolved solids (TDS`s) of the synthetic brine in proportion. Salinity of the connate and invading brines can have a major influence on wettability and oil recovery at reservoir temperature. Oil recovery increased over that for the RB with dilution of both the initial (connate) and invading brine or dilution of either. Aging and displacement temperatures were varied independently. For all crude oils, water wetness and oil recovery increased with increase in displacement temperature. Removal of light components from the crude oil resulted in increased water wetness. Addition of alkanes to the crude oil reduced the water wetness, and increased oil recovery. Relationships between waterflood recovery and rate and extent of oil recovery by spontaneous imbibition are summarized.

  13. Wiesbaden Motel & Health Resort Space Heating Low Temperature...

    Open Energy Info (EERE)

    Heating Low Temperature Geothermal Facility Facility Wiesbaden Motel & Health Resort Sector Geothermal energy Type Space Heating Location Ouray, Colorado Coordinates...

  14. 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.

  15. 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

  16. Agua Calientes Trailer Park Space Heating Low Temperature Geothermal...

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  17. A transient heat transfer model for high temperature solar thermochemi...

    Office of Scientific and Technical Information (OSTI)

    Search Results Journal Article: A transient heat transfer model for high temperature solar ... Title: A transient heat transfer model for high temperature solar thermochemical reactors ...

  18. Klamath Churches (5) Space Heating Low Temperature Geothermal...

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  19. Klamath County Shops Space Heating Low Temperature Geothermal...

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  20. Hunters Hot Spring Space Heating Low Temperature Geothermal Facility...

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  1. Modoc High School Space Heating Low Temperature Geothermal Facility...

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  2. Medical Center Space Heating Low Temperature Geothermal Facility...

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  3. Corral Space Heating Low Temperature Geothermal Facility | Open...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Corral Space Heating Low Temperature Geothermal Facility Facility Corral Sector Geothermal energy...

  4. The Wilderness Lodge Space Heating Low Temperature Geothermal...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name The Wilderness Lodge Space Heating Low Temperature Geothermal Facility Facility The Wilderness...

  5. Boulder Hot Springs Space Heating Low Temperature Geothermal...

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  6. Manley Hot Springs Space Heating Low Temperature Geothermal Facility...

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  7. Jump Steady Resort Space Heating Low Temperature Geothermal Facility...

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  8. Circle Hot Springs Space Heating Low Temperature Geothermal Facility...

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  9. Klamath Schools (7) Space Heating Low Temperature Geothermal...

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  10. Health Spa Space Heating Low Temperature Geothermal Facility...

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    Spa Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Health Spa Space Heating Low Temperature Geothermal Facility Facility Glenwood Springs Health...

  11. Desert Hot Springs Space Heating Low Temperature Geothermal Facility...

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    Springs Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Desert Hot Springs Space Heating Low Temperature Geothermal Facility Facility Desert Hot...

  12. Vale Residences Space Heating Low Temperature Geothermal Facility...

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  13. Twin Peaks Motel Space Heating Low Temperature Geothermal Facility...

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  14. Lava Hot Springs Space Heating Low Temperature Geothermal Facility...

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  15. Hot Sulphur Springs Space Heating Low Temperature Geothermal...

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  16. Medical Hot Springs Space Heating Low Temperature Geothermal...

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  17. Klamath Residence (500) Space Heating Low Temperature Geothermal...

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  18. Van Norman Residences Space Heating Low Temperature Geothermal...

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  19. Cottonwood Hot Springs Space Heating Low Temperature Geothermal...

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  20. Stroppel Hotel Space Heating Low Temperature Geothermal Facility...

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  1. Tecopa Hot Springs Space Heating Low Temperature Geothermal Facility...

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  2. Walley's Hot Springs Resort Space Heating Low Temperature Geothermal...

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  3. Vale Slaughter House Space Heating Low Temperature Geothermal...

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  4. Arrowhead Hot Springs Space Heating Low Temperature Geothermal...

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  5. Box Canyon Motel Space Heating Low Temperature Geothermal Facility...

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    Canyon Motel Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Box Canyon Motel Space Heating Low Temperature Geothermal Facility Facility Box...

  6. Melozi Space Heating Low Temperature Geothermal Facility | Open...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Melozi Space Heating Low Temperature Geothermal Facility Facility Melozi Sector Geothermal energy...

  7. Fairmont Hot Springs Resort Space Heating Low Temperature Geothermal...

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  8. Maywood Industries of Oregon Space Heating Low Temperature Geothermal...

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  9. Lolo Hot Springs Resort Space Heating Low Temperature Geothermal...

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  10. Henley High School Space Heating Low Temperature Geothermal Facility...

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  11. Vichy Hot Springs Space Heating Low Temperature Geothermal Facility...

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  12. Buckhorn Mineral Wells Space Heating Low Temperature Geothermal...

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  13. Shoshone Motel & Trailer Park Space Heating Low Temperature Geothermal...

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  14. Baranof Space Heating Low Temperature Geothermal Facility | Open...

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  15. Steamboat Villa Hot Springs Spa Space Heating Low Temperature...

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  16. White Sulphur Springs Space Heating Low Temperature Geothermal...

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  17. Waunita Hot Springs Ranch Space Heating Low Temperature Geothermal...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Waunita Hot Springs Ranch Space Heating Low Temperature Geothermal Facility Facility Waunita Hot...

  18. Twin Springs Resort Space Heating Low Temperature Geothermal...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Twin Springs Resort Space Heating Low Temperature Geothermal Facility Facility Twin Springs...

  19. Pagosa Springs Private Wells Space Heating Low Temperature Geothermal...

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  20. Merle West Medical Center Space Heating Low Temperature Geothermal...

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  1. Olene Gap Space Heating Low Temperature Geothermal Facility ...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Olene Gap Space Heating Low Temperature Geothermal Facility Facility Olene Gap Sector Geothermal...

  2. Homestead Resort Space Heating Low Temperature Geothermal Facility...

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  3. Chico Hot Springs Space Heating Low Temperature Geothermal Facility...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Chico Hot Springs Space Heating Low Temperature Geothermal Facility Facility Chico Hot Springs...

  4. Bell Island Space Heating Low Temperature Geothermal Facility...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Bell Island Space Heating Low Temperature Geothermal Facility Facility Bell Island Sector...

  5. Mount Princeton Area Space Heating Low Temperature Geothermal...

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    Area Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Mount Princeton Area Space Heating Low Temperature Geothermal Facility Facility Mount...

  6. LDS Wardhouse Space Heating Low Temperature Geothermal Facility...

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  7. Reno-Moana Area (300) Space Heating Low Temperature Geothermal...

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  8. Saratoga Springs Resort Space Heating Low Temperature Geothermal...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Saratoga Springs Resort Space Heating Low Temperature Geothermal Facility Facility Saratoga...

  9. Glenwood Hot Springs Lodge Space Heating Low Temperature Geothermal...

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    Lodge Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Glenwood Hot Springs Lodge Space Heating Low Temperature Geothermal Facility Facility...

  10. Hillbrook Nursing Home Space Heating Low Temperature Geothermal...

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    Hillbrook Nursing Home Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Hillbrook Nursing Home Space Heating Low Temperature Geothermal Facility...

  11. Indian Valley Hospital Space Heating Low Temperature Geothermal...

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    Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Indian Valley Hospital Space Heating Low Temperature Geothermal Facility Facility Indian...

  12. Chena Hot Springs Space Heating Low Temperature Geothermal Facility...

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  13. Ft Bidwell Space Heating Low Temperature Geothermal Facility...

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  14. Breitenbush Hot Springs Space Heating Low Temperature Geothermal...

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  15. Bozeman Hot Springs Space Heating Low Temperature Geothermal...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Bozeman Hot Springs Space Heating Low Temperature Geothermal Facility Facility Bozeman Hot...

  16. Pinkerton Hot Springs Space Heating Low Temperature Geothermal...

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  17. Senior Citizens' Center Space Heating Low Temperature Geothermal...

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    Senior Citizens' Center Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Senior Citizens' Center Space Heating Low Temperature Geothermal Facility...

  18. Warm Springs State Hospital Space Heating Low Temperature Geothermal...

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    State Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warm Springs State Hospital Space Heating Low Temperature Geothermal Facility...

  19. Langel Valley Space Heating Low Temperature Geothermal Facility...

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    Langel Valley Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Langel Valley Space Heating Low Temperature Geothermal Facility Facility Langel...

  20. LDS Church Space Heating Low Temperature Geothermal Facility...

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    LDS Church Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name LDS Church Space Heating Low Temperature Geothermal Facility Facility LDS Church...

  1. Klamath County Jail Space Heating Low Temperature Geothermal...

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    Jail Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Klamath County Jail Space Heating Low Temperature Geothermal Facility Facility Klamath...

  2. Jemez Springs Space Heating Low Temperature Geothermal Facility...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Jemez Springs Space Heating Low Temperature Geothermal Facility Facility Jemez Springs Sector...

  3. YMCA Space Heating Low Temperature Geothermal Facility | Open...

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    YMCA Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name YMCA Space Heating Low Temperature Geothermal Facility Facility YMCA Sector Geothermal...

  4. Utah State Prison Space Heating Low Temperature Geothermal Facility...

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    Prison Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Utah State Prison Space Heating Low Temperature Geothermal Facility Facility Utah State...

  5. Warner Springs Ranch Resort Space Heating Low Temperature Geothermal...

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    Ranch Resort Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warner Springs Ranch Resort Space Heating Low Temperature Geothermal Facility...

  6. Surprise Valley Hospital Space Heating Low Temperature Geothermal...

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  7. Del Rio Hot Springs Space Heating Low Temperature Geothermal...

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  8. Miracle Hot Spring Space Heating Low Temperature Geothermal Facility...

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    Spring Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Miracle Hot Spring Space Heating Low Temperature Geothermal Facility Facility Miracle Hot...

  9. St. Mary's Hospital Space Heating Low Temperature Geothermal...

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  10. Cotulla High School Space Heating Low Temperature Geothermal...

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  11. Ouray Municipal Pool Space Heating Low Temperature Geothermal...

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  12. Miracle Hot Springs Space Heating Low Temperature Geothermal...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Miracle Hot Springs Space Heating Low Temperature Geothermal Facility Facility Miracle Hot...

  13. Marlin Hospital Space Heating Low Temperature Geothermal Facility...

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  14. Radium Hot Springs Space Heating Low Temperature Geothermal Facility...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Radium Hot Springs Space Heating Low Temperature Geothermal Facility Facility Radium Hot Springs...

  15. Summer Lake Hot Springs Space Heating Low Temperature Geothermal...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Summer Lake Hot Springs Space Heating Low Temperature Geothermal Facility Facility Summer Lake...

  16. Banbury Hot Springs Space Heating Low Temperature Geothermal...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Banbury Hot Springs Space Heating Low Temperature Geothermal Facility Facility Banbury Hot...

  17. Peppermill Hotel Casino Space Heating Low Temperature Geothermal...

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  18. Modesto Memorial Hospital Space Heating Low Temperature Geothermal...

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    Memorial Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Modesto Memorial Hospital Space Heating Low Temperature Geothermal Facility...

  19. Indian Springs School Space Heating Low Temperature Geothermal...

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    School Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Indian Springs School Space Heating Low Temperature Geothermal Facility Facility Indian...

  20. Geronimo Springs Museum Space Heating Low Temperature Geothermal...

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  1. Ophir Creek Space Heating Low Temperature Geothermal Facility...

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    Ophir Creek Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Ophir Creek Space Heating Low Temperature Geothermal Facility Facility Ophir Creek...

  2. Burgdorf Hot Springs Space Heating Low Temperature Geothermal...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Burgdorf Hot Springs Space Heating Low Temperature Geothermal Facility Facility Burgdorf Hot...

  3. Hot Springs National Park Space Heating Low Temperature Geothermal...

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  4. Hi-Tech Fisheries Space Heating Low Temperature Geothermal Facility...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Hi-Tech Fisheries Space Heating Low Temperature Geothermal Facility Facility Hi-Tech Fisheries...

  5. Canon City Area Space Heating Low Temperature Geothermal Facility...

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    Canon City Area Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Canon City Area Space Heating Low Temperature Geothermal Facility Facility Canon...

  6. Warren Estates District Heating Low Temperature Geothermal Facility...

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  7. Elko County School District District Heating Low Temperature...

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    Elko County School District District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Elko County School District District Heating Low Temperature...

  8. Idaho Capitol Mall District Heating Low Temperature Geothermal...

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  9. Fort Boise Veteran's Hospital District Heating Low Temperature...

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  10. Jackson Well Springs Space Heating Low Temperature Geothermal...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Jackson Well Springs Space Heating Low Temperature Geothermal Facility Facility Jackson Well...

  11. Jackson Hot Springs Lodge Space Heating Low Temperature Geothermal...

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    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Jackson Hot Springs Lodge Space Heating Low Temperature Geothermal Facility Facility Jackson...

  12. High Operating Temperature Liquid Metal Heat Transfer Fluids...

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

    High Operating Temperature Liquid Metal Heat Transfer Fluids High Operating Temperature Liquid Metal Heat Transfer Fluids This fact sheet describes a UCLA-led solar project to ...

  13. Warm Springs Water District District Heating Low Temperature...

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    Water District District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warm Springs Water District District Heating Low Temperature Geothermal...

  14. Hot Lake RV Park Space Heating Low Temperature Geothermal Facility...

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    Lake RV Park Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Hot Lake RV Park Space Heating Low Temperature Geothermal Facility Facility Hot Lake...

  15. New Mexico State University District Heating Low Temperature...

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    Heating Low Temperature Geothermal Facility Jump to: navigation, search Name New Mexico State University District Heating Low Temperature Geothermal Facility Facility New...

  16. Osmotic Heat Engine for Energy Production from Low Temperature...

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

    Osmotic Heat Engine for Energy Production from Low Temperature Geothermal Resources Osmotic Heat Engine for Energy Production from Low Temperature Geothermal Resources Project ...

  17. 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.

  18. Analysis of IECC2003 Chiller Heat Recovery for Service Water Heating Requirement for New York State

    SciTech Connect (OSTI)

    Winiarski, David W.

    2004-08-15

    The state of New York asked the U.S. Department of Energy to evaluate the cost-effectiveness of the requirement for Heat Recovery for Service Water Heating that exists in the 2003 International Energy Conservation Code to determine whether this requirement should be adopted into the New York State Energy Code. A typical hotel application that would trigger this requirement was examined using whole building simulation software to generate baseline annual chiller and service hot water loads, and a spreadsheet was used to examine the energy savings potential for heat recovery using hourly load files from the simulation. An example application meeting the code requirement was developed, and the energy savings, energy cost savings, and first costs for the heat recovery installation were developed. The calculated payback for this application was 6.3 years using 2002 New York state average energy costs. This payback met the minimum requirements for cost effectiveness established for the state of New York for updating the commercial energy conservation code.

  19. Low Temperature Geothermal Mineral Recovery Program | Department of Energy

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

    Low Temperature Geothermal Mineral Recovery Program Low Temperature Geothermal Mineral Recovery Program February 4, 2014 - 2:59pm Addthis Funding: Total Amount to be Awarded $3,000,000, EERE anticipates making awards that range from $200,000 to $500,000. Open Date: 02/04/2014 Close Date: 05/02/2014 Funding Organization: Department of Energy Geothermal Technologies Office Funding Number: DE-FOA-0001016 Summary: The intention of this FOA is to have awardees examine the feasibility of extracting

  20. Recovery of Water from Boiler Flue Gas Using Condensing Heat Exchangers

    SciTech Connect (OSTI)

    Edward Levy; Harun Bilirgen; John DuPoint

    2011-03-31

    Most of the water used in a thermoelectric power plant is used for cooling, and DOE has been focusing on possible techniques to reduce the amount of fresh water needed for cooling. DOE has also been placing emphasis on recovery of usable water from sources not generally considered, such as mine water, water produced from oil and gas extraction, and water contained in boiler flue gas. This report deals with development of condensing heat exchanger technology for recovering moisture from flue gas from coal-fired power plants. The report describes: (1) An expanded data base on water and acid condensation characteristics of condensing heat exchangers in coal-fired units. This data base was generated by performing slip stream tests at a power plant with high sulfur bituminous coal and a wet FGD scrubber and at a power plant firing high-moisture, low rank coals. (2) Data on typical concentrations of HCl, HNO{sub 3} and H{sub 2}SO{sub 4} in low temperature condensed flue gas moisture, and mercury capture efficiencies as functions of process conditions in power plant field tests. (3) Theoretical predictions for sulfuric acid concentrations on tube surfaces at temperatures above the water vapor dewpoint temperature and below the sulfuric acid dew point temperature. (4) Data on corrosion rates of candidate heat exchanger tube materials for the different regions of the heat exchanger system as functions of acid concentration and temperature. (5) Data on effectiveness of acid traps in reducing sulfuric acid concentrations in a heat exchanger tube bundle. (6) Condensed flue gas water treatment needs and costs. (7) Condensing heat exchanger designs and installed capital costs for full-scale applications, both for installation immediately downstream of an ESP or baghouse and for installation downstream of a wet SO{sub 2} scrubber. (8) Results of cost-benefit studies of condensing heat exchangers.

  1. Recovery of Water from Boiler Flue Gas Using Condensing Heat Exchangers

    SciTech Connect (OSTI)

    Levy, Edward; Bilirgen, Harun; DuPont, John

    2011-03-31

    Most of the water used in a thermoelectric power plant is used for cooling, and DOE has been focusing on possible techniques to reduce the amount of fresh water needed for cooling. DOE has also been placing emphasis on recovery of usable water from sources not generally considered, such as mine water, water produced from oil and gas extraction, and water contained in boiler flue gas. This report deals with development of condensing heat exchanger technology for recovering moisture from flue gas from coal-fired power plants. The report describes: • An expanded data base on water and acid condensation characteristics of condensing heat exchangers in coal-fired units. This data base was generated by performing slip stream tests at a power plant with high sulfur bituminous coal and a wet FGD scrubber and at a power plant firing highmoisture, low rank coals. • Data on typical concentrations of HCl, HNO{sub 3} and H{sub 2}SO{sub 4} in low temperature condensed flue gas moisture, and mercury capture efficiencies as functions of process conditions in power plant field tests. • Theoretical predictions for sulfuric acid concentrations on tube surfaces at temperatures above the water vapor dewpoint temperature and below the sulfuric acid dew point temperature. • Data on corrosion rates of candidate heat exchanger tube materials for the different regions of the heat exchanger system as functions of acid concentration and temperature. • Data on effectiveness of acid traps in reducing sulfuric acid concentrations in a heat exchanger tube bundle. • Condensed flue gas water treatment needs and costs. • Condensing heat exchanger designs and installed capital costs for full-scale applications, both for installation immediately downstream of an ESP or baghouse and for installation downstream of a wet SO{sub 2} scrubber. • Results of cost-benefit studies of condensing heat exchangers.

  2. PBMR as an Ideal Heat Source for High-Temperature Process Heat Applications

    SciTech Connect (OSTI)

    Correia, Michael; Greyvenstein, Renee; Silady, Fred; Penfield, Scott

    2006-07-01

    The Pebble Bed Modular Reactor (PBMR) is an advanced helium-cooled, graphite-moderated High Temperature Gas-cooled Reactor (HTGR). A 400 MWt PBMR Demonstration Power Plant (DPP) for the production of electricity is being developed in South Africa. This PBMR technology is also an ideal heat source for process heat applications, including Steam Methane Reforming, steam for Oil Sands bitumen recovery, Hydrogen Production and co-generation (process heat and/or electricity and/or process steam) for petrochemical industries. The cycle configuration used to transport the heat of the reactor to the process plant or to convert the reactor's heat into electricity or steam directly influences the cycle efficiency and plant economics. The choice of cycle configuration depends on the process requirements and is influenced by practical considerations, component and material limitations, maintenance, controllability, safety, performance, risk and cost. This paper provides an overview of the use of a PBMR reactor for process applications and possible cycle configurations are presented for applications which require high temperature process heat and/or electricity. (authors)

  3. Counter flow cooling drier with integrated heat recovery

    DOE Patents [OSTI]

    Shivvers, Steve D.

    2009-08-18

    A drier apparatus for removing water or other liquids from various materials includes a mixer, drying chamber, separator and regenerator and a method for use of the apparatus. The material to be dried is mixed with a heated media to form a mixture which then passes through the chamber. While passing through the chamber, a comparatively cool fluid is passed counter current through the mixture so that the mixture becomes cooler and drier and the fluid becomes hotter and more saturated with moisture. The mixture is then separated into drier material and media. The media is transferred to the regenerator and heated therein by the hot fluid from the chamber and supplemental heat is supplied to bring the media to a preselected temperature for mixing with the incoming material to be dried. In a closed loop embodiment of the apparatus, the fluid is also recycled from the regenerator to the chamber and a chiller is utilized to reduce the temperature of the fluid to a preselected temperature and dew point temperature.

  4. New configurations of a heat recovery absorption heat pump integrated with a natural gas boiler for boiler efficiency improvement

    SciTech Connect (OSTI)

    Qu, Ming; Abdelaziz, Omar; Yin, Hongxi

    2014-11-01

    Conventional natural gas-fired boilers exhaust flue gas direct to the atmosphere at 150 200 C, which, at such temperatures, contains large amount of energy and results in relatively low thermal efficiency ranging from 70% to 80%. Although condensing boilers for recovering the heat in the flue gas have been developed over the past 40 years, their present market share is still less than 25%. The major reason for this relatively slow acceptance is the limited improvement in the thermal efficiency of condensing boilers. In the condensing boiler, the temperature of the hot water return at the range of 50 60 C, which is used to cool the flue gas, is very close to the dew point of the water vapor in the flue gas. Therefore, the latent heat, the majority of the waste heat in the flue gas, which is contained in the water vapor, cannot be recovered. This paper presents a new approach to improve boiler thermal efficiency by integrating absorption heat pumps with natural gas boilers for waste heat recovery (HRAHP). Three configurations of HRAHPs are introduced and discussed. The three configurations are modeled in detail to illustrate the significant thermal efficiency improvement they attain. Further, for conceptual proof and validation, an existing hot water-driven absorption chiller is operated as a heat pump at operating conditions similar to one of the devised configurations. An overall system performance and economic analysis are provided for decision-making and as evidence of the potential benefits. These three configurations of HRAHP provide a pathway to achieving realistic high-efficiency natural gas boilers for applications with process fluid return temperatures higher than or close to the dew point of the water vapor in the flue gas.

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

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

    Overview of Fords Thermoelectric Programs: Waste Heat Recovery and Climate Control Thermoelectric HVAC for Light-Duty Vehicle Applications Automotive Thermoelectric Generators ...

  6. Heating tar sands formations to visbreaking temperatures

    DOE Patents [OSTI]

    Karanikas, John Michael; Colmenares, Tulio Rafael; Zhang, Etuan; Marino, Marian; Roes, Augustinus Wilhelmus Maria; Ryan, Robert Charles; Beer, Gary Lee; Dombrowski, Robert James; Jaiswal, Namit

    2009-12-22

    Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The heat may be controlled so that at least a majority of the section reaches an average temperature of between 200.degree. C. and 240.degree. C., which results in visbreaking of at least some hydrocarbons in the section. At least some visbroken hydrocarbon fluids may be produced from the formation.

  7. High-Temperature Nuclear Reactors for In-Situ Recovery of Oil from Oil Shale

    SciTech Connect (OSTI)

    Forsberg, Charles W.

    2006-07-01

    The world is exhausting its supply of crude oil for the production of liquid fuels (gasoline, jet fuel, and diesel). However, the United States has sufficient oil shale deposits to meet our current oil demands for {approx}100 years. Shell Oil Corporation is developing a new potentially cost-effective in-situ process for oil recovery that involves drilling wells into oil shale, using electric heaters to raise the bulk temperature of the oil shale deposit to {approx}370 deg C to initiate chemical reactions that produce light crude oil, and then pumping the oil to the surface. The primary production cost is the cost of high-temperature electrical heating. Because of the low thermal conductivity of oil shale, high-temperature heat is required at the heater wells to obtain the required medium temperatures in the bulk oil shale within an economically practical two to three years. It is proposed to use high-temperature nuclear reactors to provide high-temperature heat to replace the electricity and avoid the factor-of-2 loss in converting high-temperature heat to electricity that is then used to heat oil shale. Nuclear heat is potentially viable because many oil shale deposits are thick (200 to 700 m) and can yield up to 2.5 million barrels of oil per acre, or about 125 million dollars/acre of oil at $50/barrel. The concentrated characteristics of oil-shale deposits make it practical to transfer high-temperature heat over limited distances from a reactor to the oil shale deposits. (author)

  8. 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 System ...

  9. 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.

  10. Broadwater Athletic Club & Hot Springs Space Heating Low Temperature...

    Open Energy Info (EERE)

    Broadwater Athletic Club & Hot Springs Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Broadwater Athletic Club & Hot Springs Space Heating Low...

  11. Cedarville Elementary & High School Space Heating Low Temperature...

    Open Energy Info (EERE)

    Cedarville Elementary & High School Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Cedarville Elementary & High School Space Heating Low...

  12. Salida Hot Springs (Poncha Spring) Space Heating Low Temperature...

    Open Energy Info (EERE)

    Salida Hot Springs (Poncha Spring) Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Salida Hot Springs (Poncha Spring) Space Heating Low...

  13. Klamath Apartment Buildings (13) Space Heating Low Temperature...

    Open Energy Info (EERE)

    (13) Space Heating Low Temperature Geothermal Facility Facility Klamath Apartment Buildings (13) Sector Geothermal energy Type Space Heating Location Klamath Falls, Oregon...

  14. Assessment and development of an advanced heat pump for recovery of volatile organic compounds

    SciTech Connect (OSTI)

    Not Available

    1992-06-01

    This report documents Phase 1 of a project conducted by Mechanical Technology Incorporated (MTI) for the assessment and development of an advanced heat pump for recovery of VOC solvents from process gas streams. In Phase 1, MTI has evaluated solvent recovery applications within New York State (NYS), identified host sites willing to implement their application, and conducted a preliminary design of the equipment required. The design and applications were evaluated for technical and economic feasibility. The solvent recovery heat pump system concept resulting from the Phase 1 work is one of a mobile unit that would service multiple stationary adsorbers. A large percentage of solvent recovery applications within the state can be serviced by on-site carbon bed adsorbers that are desorbed at frequencies ranging from once per to once per month. In this way, many users can effectively share'' the substantial capital investment associated with the system's reverse Brayton hardware, providing it can be packaged as a mobile unit. In a typical operating scenario, a carbon adsorption module will be located permanently at the industrial site. The SLA will be ducted through the adsorber and the solvents removed, thus eliminating an air emission problem. Prior to VOC breakthrough, by schedule or by request, the mobile unit would arrive at the site to recover the concentrated solvent. An engine driven, natural gas fueled system, the mobile unit utilizes conditioned engine exhaust gases as the inert gas for desorption. Hot inert gas is directed through the carbon bed, heating it and volatilizing the adsorbed solvent. Using a revere Brayton-cycle refrigeration system to create low temperatures, the solvent vapors are condensed and collected from the inert gas stream. The solvent can then be recycled to the production process or sold for other uses and the adsorber returned to service.

  15. Comparison of freezing control strategies for residential air-to-air heat recovery ventilators

    SciTech Connect (OSTI)

    Phillips, E.G.; Bradley, L.C. ); Chant, R.E. ); Fisher, D.R.

    1989-01-01

    A comparison of the energy performance of defrost and frost control strategies for residential air-to-air heat recovery ventilators (HRV) has been carried out by using computer simulations for various climatic conditions. This paper discusses the results and conclusions from the comparisons and their implications for the heat recovery ventilator manufacturers and system designers.

  16. Osmotic Heat Engine for Energy Production from Low Temperature Geothemal

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

    Resources | Department of Energy Osmotic Heat Engine for Energy Production from Low Temperature Geothemal Resources Osmotic Heat Engine for Energy Production from Low Temperature Geothemal Resources Osmotic Heat Engine for Energy Production from Low Temperature Geothemal Resources presentation at the April 2013 peer review meeting held in Denver, Colorado. osmotic_heat_engine_low_temp_peer2013.pdf (706.39 KB) More Documents & Publications Osmotic Heat Engine for Energy Production from

  17. Measured Performance of a Low Temperature Air Source Heat Pump

    SciTech Connect (OSTI)

    R.K. Johnson

    2013-09-01

    A 4-ton Low Temperature Heat Pump (LTHP) manufactured by Hallowell International was installed in a residence near New Haven, Connecticut and monitored over two winters of operation. After attending to some significant service issues, the heat pump operated as designed. This report should be considered a review of the dual compressor “boosted heat pump” technology. The Low Temperature Heat Pump system operates with four increasing levels of capacity (heat output) as the outdoor temperature drops.

  18. DOE MURI: Hig-Operating Temperature Heat Transfer Fluids for...

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

    High Operating Temperature Liquid Metal Heat Transfer Fluids - FY13 Q2 High Operating Temperature Heat Transfer Fluids for Solar Thermal Power Generation FY13 Q1 Corrosion in Very ...

  19. Airflow reduction during cold weather operation of residential heat recovery ventilators

    SciTech Connect (OSTI)

    McGugan, C.A.; Edwards, P.F.; Riley, M.A.

    1987-06-01

    Laboratory measurements of the performance of residential heat recovery ventilators have been carried out for the R-2000 Energy Efficient Home Program. This work was based on a preliminary test procedure developed by the Canadian Standards Association, part of which calls for testing the HRV under cold weather conditions. An environmental chamber was used to simulate outdoor conditions. Initial tests were carried out with an outdoor temperature of -20/sup 0/C; subsequent tests were carried out at a temperature of -25/sup 0/C. During the tests, airflows, temperatures, and relative humidities of airstreams entering and leaving the HRV, along with electric power inputs, were monitored. Frost buildup in the heat exchangers and defrost mechanisms, such as fan shutoff or recirculation, led to reductions in airflows. The magnitude of the reductions is dependent on the design of the heat exchanger and the defrost mechanism used. This paper presents the results of tests performed on a number of HRVs commercially available in Canada at the time of the testing. The flow reductions for the various defrost mechanisms are discussed.

  20. Install Waste Heat Recovery Systems for Fuel-Fired Furnaces;...

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

    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 ...

  1. 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.

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

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

    When the energy transfer reaches its practical limit, the spent combustion gases are ... reduction in furnace heat losses will be multiplied by the overall available heat factor. ...

  3. LOW TEMPERATURE GEOTHERMAL MINERAL RECOVERY PROGRAM 02/11/2014 | Department

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

    of Energy LOW TEMPERATURE GEOTHERMAL MINERAL RECOVERY PROGRAM 02/11/2014 LOW TEMPERATURE GEOTHERMAL MINERAL RECOVERY PROGRAM 02/11/2014 mineral-webinar.pdf (3.45 MB) More Documents & Publications LOW TEMPERATURE GEOTHERMAL MINERAL RECOVERY PROGRAM Geothermal Play Fairway Analysis Geothermal Play Fairway Analysis

  4. Steel Mill Powered by Waste Heat Recovery System | Department...

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

    efficient recovery boiler. Locations Indiana Partners ArcelorMittal USA, Inc. EERE Investment 31.6 million Clean Energy Sector Energy-saving homes, buildings, and manufacturing

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

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

    Department of Energy 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 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 deer09_briggs.pdf (291.32 KB) More Documents & Publications Performance of an

  6. Performance of an Organic Rankine Cycle Waste Heat Recovery System for

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

    Light Duty Diesel Engines | Department of Energy 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 Diesel Engines Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. p-04_briggs.pdf (486.62 KB) More Documents & Publications Development of a Waste Heat Recovery System for Light Duty Diesel

  7. Osmotic Heat Engine for Energy Production from Low Temperature Geothermal

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

    Resources | Department of Energy Osmotic Heat Engine for Energy Production from Low Temperature Geothermal Resources Osmotic Heat Engine for Energy Production from Low Temperature Geothermal Resources Project objective: to demonstrate the economic viability of an Osmotic Heat Engine for electricity production from extremely low-grade geothermal resources. low_mcginnis_osmotic_heat_engine.pdf (327.23 KB) More Documents & Publications Osmotic Heat Engine for Energy Production from Low

  8. Demonstration of a 30-kW Microturbine with Heat Recovery in a 500-Soldier Barracks

    SciTech Connect (OSTI)

    Friedrich, Michele; Armstrong, Peter R.; Smith, David L.; Rowley, Steven

    2005-12-31

    A combined heat and power-configured microturbine system was evaluated as an alternative to grid-supplied electric power. While off-grid, the system provides auxiliary power for gas-fired boilers and a portion of the domestic hot water for a 500-man barracks and kitchen. One-time tests were made of sound levels, stack emissions and power quality. Steady-state generating capacity dropped faster than the ratings as the inlet air temperature approached 15°C, while generating efficiency, based on fuel higher heating value, did not drop as rapidly and was still almost 21% at 33°C. The microturbine must boost the fuel (natural gas) delivery pressure to 55 psig. During the one year of operation, four fuel compressors failed and there were repeated failures of the microturbine and heat recovery heat exchanger controls. Energy savings based on the measured performance and CY2003 utility rates were $2670 per year. This paper, which will be presented at the ASHRAE Annual Meeting in Orlando, Florida, Feb. 5-9, describes the results of this evaluation.

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

    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 A Quantum Leap for Heavy-Duty Truck Engine Efficiency - Hybrid Power System of ...

  10. Overview of Fords Thermoelectric Programs: Waste Heat Recovery and Climate Control

    Office of Energy Efficiency and Renewable Energy (EERE)

    Overview of progress in TE waste heat recovery from sedan gasoline-engine exhaust, TE HVAC system in hybrid sedan, and establishing targets for cost, power density, packaging, durability, and systems integration