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


1

Waste heat from kitchen cuts hot water electricity 23%  

SciTech Connect

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

Barber, J.

1984-05-21T23:59:59.000Z

2

Kitchen Botany  

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

Kitchen Botany Kitchen Botany Nature Bulletin No. 684 September 8, 1962 Forest Preserve District of Cook County Seymour Simon, President David H. Thompson, Senior Naturalist KITCHEN BOTANY The corner grocery store and the local fruit stand offer a variety of plant materials that can be grown and studied in the schoolroom or laboratory. At any time of year, fruit seeds and root vegetables of many kinds can be made to germinate, take root and thrive indoors. In addition to those from the orchards, home gardens and truck farms of this region, it is possible to grow seedlings of a number of tropical fruits. Most of the contents of this bulletin are taken from a recent article by Blair Coursen, published in Turtox News. A few simple supplies including flower pots, boxes or trays of garden soil are the only equipment needed. A school terrarium or leaky aquarium can be used to advantage. A good hand lens or microscope, though not essential, can show some of the finer details of roots, stems, leaves and developing seeds not visible to the naked eye.

3

Heat extraction and refrigeration (HEAR) system. Phase I final progress report. [Restaurant kitchens  

Science Conference Proceedings (OSTI)

Testing indicates that heat energy available to be recaptured grossly exceeds the capacity of the 1.5 ton medium temperature Freon 12 compressor being utilized. The unit produced 50 pounds of suction pressure with the damper (Figure 4) open and exceeded compressor operational limits with the damper closed. This indicates that the current compressor could be replaced by one of 5 ton capacity since current estimates indicate that 60,000 Btu's are available for recovery. This could be divided between space heating and water heating as required by using separate condensers. There were no real surprises in the feasibility model construction and test phase, and the validity of the assumptions made in the original project description have been established. That is, it has been demonstrated that it is feasible to extract heat from the kitchen exhaust duct in a restaurant and keep the heat pump evaporator clean. It is concluded that work done under this $10,000 grant demonstrated the technical feasibility of the HEAR System. However, additional funding (our original proposal called for a $47,000 grant) would be required to economically evaluate the benefit realized and to advance the HEAR System design to a workable prototype stage.

Venable, B.M.

1983-01-01T23:59:59.000Z

4

Matsushita's Virtual Kitchen  

Science Conference Proceedings (OSTI)

... Virtual Kitchen, a retail application set up in Japan to help people choose appliances and furnishings for the relatively small kitchen apartment ...

5

Evolution of domestic kitchen  

Science Conference Proceedings (OSTI)

Domestic kitchen area is the most important, most intensely used functional area in the apartment. With regard to laboratory nature of kitchen works, equipment and users of different age and physical fitness, kitchen is a potentially dangerous place. ... Keywords: domestic kitchen, ergonomics, socialization, technical progress

Jerzy Charytonowicz; Dzoana Latala

2011-07-01T23:59:59.000Z

6

Section B: KITCHEN APPLIANCES  

U.S. Energy Information Administration (EIA)

Which of these cooking appliances do you have in your kitchen? (Mark all ... Natural gas from underground pipes . 01 Bottled gas (LPG or Propane) ...

7

Tips: Kitchen Appliances | Department of Energy  

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

Tips: Kitchen Appliances Tips: Kitchen Appliances Tips: Kitchen Appliances April 24, 2012 - 8:34pm Addthis ENERGY STAR® Refrigerators Are Cool! ENERGY STAR-qualified refrigerators are 20% more energy efficient than non-qualified models. Models with top-mounted freezers use 10-25% less energy than side-by-side or bottom-mount units. ENERGY STAR® Refrigerators Are Cool! ENERGY STAR-qualified refrigerators are 20% more energy efficient than non-qualified models. Models with top-mounted freezers use 10-25% less energy than side-by-side or bottom-mount units. You can save energy in your kitchen through more efficient use of your dishwasher, refrigerator and freezer, and other common appliances. Dishwashers Most of the energy used by a dishwasher is for water heating.

8

Kitchen Knife Safety  

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

Kitchen Knife Safety 1) Use a good quality cutting board (flat and stable). 2) Use a kitchen towel underneath a cutting board so that it won't slip. Observe above: Warped and unbalanced cutting board vs. flat and well-anchored board. 3) Sharp knives are safer knives. Dull knives can skip, slide, snag, or get stuck while cutting, leaving you off balance. 4) Use the right knife for the job. a. Serrated knives are long and lean that help grip and saw through the crust of rustic breads without using too much strength. b. Paring knives are used for smaller foods, such as limes, cherry tomatoes or shallots, for better control and lighter weight (less chance of skipping off of a smaller cutting surface). c. Chef's knives (one of the most used in the kitchen) can be used for

9

Ameren Illinois (Electric) - Commercial Kitchen and Grocery Incentives  

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

Ameren Illinois (Electric) - Commercial Kitchen and Grocery Ameren Illinois (Electric) - Commercial Kitchen and Grocery Incentives Program Ameren Illinois (Electric) - Commercial Kitchen and Grocery Incentives Program < Back Eligibility Commercial Fed. Government Industrial Local Government Nonprofit Retail Supplier State Government Savings Category Home Weatherization Sealing Your Home Design & Remodeling Windows, Doors, & Skylights Construction Commercial Heating & Cooling Appliances & Electronics Commercial Lighting Lighting Manufacturing Other Maximum Rebate $600,000/year/facility. Incentives $1-$200,000: paid at 100% Incentives $200,000-$600,000: paid at 50% Program Info Expiration Date 05/31/2013 State Illinois Program Type Utility Rebate Program Rebate Amount Steamers: $300-$450 Hot Holding Cabinet: $200-$500

10

Combined Heat and Power Plant Steam Turbine  

E-Print Network (OSTI)

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

Rose, Michael R.

11

Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 1, Methodology  

SciTech Connect

The Energy Policy and Conservation Act (P.L. 94-163), as amended, establishes energy conservation standards for 12 of the 13 types of consumer products specifically covered by the Act. The legislation requires the Department of Energy (DOE) to consider new or amended standards for these and other types of products at specified times. DOE is currently considering amending standards for seven types of products: water heaters, direct heating equipment, mobile home furnaces, pool heaters, room air conditioners, kitchen ranges and ovens (including microwave ovens), and fluorescent light ballasts and is considering establishing standards for television sets. This Technical Support Document presents the methodology, data, and results from the analysis of the energy and economic impacts of the proposed standards. This volume presents a general description of the analytic approach, including the structure of the major models.

Not Available

1993-11-01T23:59:59.000Z

12

Kitchen Stories: Sharing Recipes with the Living Cookbook  

E-Print Network (OSTI)

of cooking and eating. The replacement of specific kitchen tools by multi- functional kitchen aids has been

13

Kitchen of the future and applications  

Science Conference Proceedings (OSTI)

A kitchen is a place where food is prepared and education and communication activities relating to food are carried out. As it is a place that witnesses more activity when compared to the other parts of the house, there are many potential ubiquitous ... Keywords: computer-aided cooking, computer-augmented kitchen, home computing, kitchen of the future, remote instruction, ubiquitous computing

Itiro Siio; Reiko Hamada; Noyuri Mima

2007-07-01T23:59:59.000Z

14

German central solar heating plants with seasonal heat storage  

Science Conference Proceedings (OSTI)

Central solar heating plants contribute to the reduction of CO{sub 2}-emissions and global warming. The combination of central solar heating plants with seasonal heat storage enables high solar fractions of 50% and more. Several pilot central solar heating plants with seasonal heat storage (CSHPSS) built in Germany since 1996 have proven the appropriate operation of these systems and confirmed the high solar fractions. Four different types of seasonal thermal energy stores have been developed, tested and monitored under realistic operation conditions: Hot-water thermal energy store (e.g. in Friedrichshafen), gravel-water thermal energy store (e.g. in Steinfurt-Borghorst), borehole thermal energy store (in Neckarsulm) and aquifer thermal energy store (in Rostock). In this paper, measured heat balances of several German CSHPSS are presented. The different types of thermal energy stores and the affiliated central solar heating plants and district heating systems are described. Their operational characteristics are compared using measured data gained from an extensive monitoring program. Thus long-term operational experiences such as the influence of net return temperatures are shown. (author)

Bauer, D.; Marx, R.; Nussbicker-Lux, J.; Ochs, F.; Heidemann, W. [Institute of Thermodynamics and Thermal Engineering (ITW), University of Stuttgart, Pfaffenwaldring 6, D-70550 Stuttgart (Germany); Mueller-Steinhagen, H. [Institute of Thermodynamics and Thermal Engineering (ITW), University of Stuttgart, Pfaffenwaldring 6, D-70550 Stuttgart (Germany); Institute of Technical Thermodynamics (ITT), German Aerospace Centre (DLR), Stuttgart (Germany)

2010-04-15T23:59:59.000Z

15

Fast reactor power plant design having heat pipe heat exchanger  

DOE Patents (OSTI)

The invention relates to a pool-type fission reactor power plant design having a reactor vessel containing a primary coolant (such as liquid sodium), and a steam expansion device powered by a pressurized water/steam coolant system. Heat pipe means are disposed between the primary and water coolants to complete the heat transfer therebetween. The heat pipes are vertically oriented, penetrating the reactor deck and being directly submerged in the primary coolant. A U-tube or line passes through each heat pipe, extended over most of the length of the heat pipe and having its walls spaced from but closely proximate to and generally facing the surrounding walls of the heat pipe. The water/steam coolant loop includes each U-tube and the steam expansion device. A heat transfer medium (such as mercury) fills each of the heat pipes. The thermal energy from the primary coolant is transferred to the water coolant by isothermal evaporation-condensation of the heat transfer medium between the heat pipe and U-tube walls, the heat transfer medium moving within the heat pipe primarily transversely between these walls.

Huebotter, P.R.; McLennan, G.A.

1984-08-30T23:59:59.000Z

16

Fast reactor power plant design having heat pipe heat exchanger  

DOE Patents (OSTI)

The invention relates to a pool-type fission reactor power plant design having a reactor vessel containing a primary coolant (such as liquid sodium), and a steam expansion device powered by a pressurized water/steam coolant system. Heat pipe means are disposed between the primary and water coolants to complete the heat transfer therebetween. The heat pipes are vertically oriented, penetrating the reactor deck and being directly submerged in the primary coolant. A U-tube or line passes through each heat pipe, extended over most of the length of the heat pipe and having its walls spaced from but closely proximate to and generally facing the surrounding walls of the heat pipe. The water/steam coolant loop includes each U-tube and the steam expansion device. A heat transfer medium (such as mercury) fills each of the heat pipes. The thermal energy from the primary coolant is transferred to the water coolant by isothermal evaporation-condensation of the heat transfer medium between the heat pipe and U-tube walls, the heat transfer medium moving within the heat pipe primarily transversely between these walls.

Huebotter, Paul R. (Western Springs, IL); McLennan, George A. (Downers Grove, IL)

1985-01-01T23:59:59.000Z

17

EA-1887: Renewable Fuel Heat Plant Improvements at the National...  

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

7: Renewable Fuel Heat Plant Improvements at the National Renewable Energy Laboratory, Golden, Colorado (DOEEA-1573-S1) EA-1887: Renewable Fuel Heat Plant Improvements at the...

18

Plant Support Engineering: Guidance for Replacing Heat Exchangers at Nuclear Power Plants with Plate Heat Exchangers  

Science Conference Proceedings (OSTI)

This report is the first of a "suite" of guidelines that will enable licensees to be "intelligent customers" when faced with replacing major plant components like heat exchangers to support license renewal and plant life extension.

2006-07-31T23:59:59.000Z

19

BUILDING TECHNOLOGIES PROGRAM CODE NOTES Kitchen Exhaust  

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

for replacement air, minimizing the need for conditioned makeup air. In larger kitchens, fan energy is saved by reducing airflow when cooking activity is low. Two mandatory...

20

Section B: KITCHEN APPLIANCES - Energy Information Administration  

U.S. Energy Information Administration (EIA)

2001 Residential Energy Consumption Survey Form EIA-457A (2001)--Household Questionnaire OMB No.: 1905-0092, Expiring February 29, 2004 6 Section B: KITCHEN APPLIANCES

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


21

Heat Exchanger Design for Solar Gas-Turbine Power Plant.  

E-Print Network (OSTI)

?? The aim of this project is to select appropriate heat exchangers out of available gas-gas heat exchangers for used in a proposed power plant.… (more)

Yakah, Noah

2012-01-01T23:59:59.000Z

22

Kitchen antics: humor in organizations  

E-Print Network (OSTI)

Humor is usually associated with trivial or non-rographics. serious banter', it is however a significant factor in the construction of a social reality. 'This thesis demonstrates this significance as it attempts to increase the ability to understand how humor is used and elects the organizational culture. This thesis is based on an stenographic study of a hotel kitchen. Humor is examined from the perspective of how it functions within a social context. Humor from this case study is classified according to a coding system developed within this study to reveal five types of organizational humor-cooperative, conformity, cyclic, distant and insurgent. The interplay between these humor types creates a humor culture within the organization, which is indicative of the organization's culture as a whole.

Lynch, Owen Hanley, 1972-

1998-01-01T23:59:59.000Z

23

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network (OSTI)

Dry-Cooling Tower • Power-Generation Subsystem Summary AnGas-Circulation Subsystem The Power-Generation Subsystem Theinsulating plant piping. power-generation heat exchangers.

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

24

EA-1887: Renewable Fuel Heat Plant Improvements at the National...  

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

improvements to the Renewable Fuel Heat Plant including construction and operation of a wood chip storage silo and the associated material handling conveyances and utilization of...

25

Energy-efficient lighting for kitchens and bathrooms  

SciTech Connect

This booklet intended for the consumer explains ways to make kitchen and bathroom lighting more energy efficient.

Baker, W.S.

1993-05-01T23:59:59.000Z

26

Enabling nutrition-aware cooking in a smart kitchen  

Science Conference Proceedings (OSTI)

We present a smart kitchen that can enhance the traditional meal preparation and cooking process by raising awareness of the nutrition facts in food ingredients that go into a meal. The goal is to promote healthy cooking. Our smart kitchen is augmented ... Keywords: context-aware computing, home computing, interaction design, kitchen, nutrition, smart environments, ubiquitous computing

Pei-yu Chi; Jen-hao Chen; Hao-hua Chu; Bing-Yu Chen

2007-04-01T23:59:59.000Z

27

Commercial and institutional kitchen exhaust systems  

SciTech Connect

This article addresses design requirements for commercial and institutional kitchen exhaust systems. The topics of the article include design considerations, toilet exhaust, dishwasher exhaust, grease hood exhaust, codes and standards, design concerns, common problems, and fire suppression. A side bar on ducts, plenums and housings is also included.

McGuire, A.B. (McGuire Engineers, Chicago, IL (United States))

1993-05-01T23:59:59.000Z

28

Study on the Mode of Power Plant Circulating Water Waste Heat Regenerative Thermal System  

Science Conference Proceedings (OSTI)

Power Plant Circulating Water (PPCW) waste heat recycling is an important way of increasing a power plant’s primary energy ratio. According to the PPCW waste heat regenerative thermal system, the authors propose two modes of heat pump heat regenerative ... Keywords: heat pump, power plant circulating water (PPCW), waste heat recycling, energy saving

Bi Qingsheng; Ma Yanliang; Yang Zhifu

2009-10-01T23:59:59.000Z

29

Best Management Practice: Commercial Kitchen Equipment | Department of  

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

Best Management Practice: Commercial Kitchen Equipment Best Management Practice: Commercial Kitchen Equipment Best Management Practice: Commercial Kitchen Equipment October 8, 2013 - 9:42am Addthis Commercial kitchen equipment represents a large set of water users in the non-residential sector. Water efficiency for commercial kitchen equipment is especially important because high volume applications typically use mostly hot water. Ensuring commercial kitchen equipment uses water efficiently affords both significant water and energy savings. Water-using commercial kitchen equipment include pre-rinse spray valves, wash tanks and sinks, commercial dishwashers, food steamers, steam kettles, commercial ice makers, and combination ovens (combination oven/steamer). Operation and Maintenance To maintain water efficiency in operations and maintenance, Federal

30

Research of Heat Storage Tank Operation Modes in Cogeneration Plant.  

E-Print Network (OSTI)

??The dissertation investigates typical operation modes of the heat storage tank in the small-scale cogeneration (CHP) plant, analyses formation of thermal stratifi-cation in such storage… (more)

Streckien?, Giedr?

2011-01-01T23:59:59.000Z

31

Water recovery using waste heat from coal fired power plants.  

Science Conference Proceedings (OSTI)

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.

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

2011-01-01T23:59:59.000Z

32

Optimal Scheduling of Industrial Combined Heat and Power Plants  

E-Print Network (OSTI)

Optimal Scheduling of Industrial Combined Heat and Power Plants under Time-sensitive Electricity Prices Sumit Mitra , Lige Sun , Ignacio E. Grossmann December 24, 2012 Abstract Combined heat and power companies. However, under-utilization can be a chance for tighter interaction with the power grid, which

Grossmann, Ignacio E.

33

Mobile power plants : waste body heat recovery  

E-Print Network (OSTI)

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

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

2004-01-01T23:59:59.000Z

34

Retrofitting Power Plants to Provide District Heating and Cooling  

Science Conference Proceedings (OSTI)

Case studies at five utilities documented consumer and utility benefits of retrofitting fossil steam and combined-cycle plants to provide thermal energy for district heating and cooling (DHC) for nearby loads. This cogeneration strategy helps utilities boost revenues and plant energy utilization efficiencies. It can also revitalize communities by providing inexpensive electricity and thermal energy while reducing emissions.

1997-03-27T23:59:59.000Z

35

Neural management for heat and power cogeneration plants  

Science Conference Proceedings (OSTI)

This paper deals with the problem of finding the optimum load allocation on machines and apparatuses in complex Cogeneration Heat and Power (CHP) plants. A methodology based on Neural Networks (NN) has been developed. A database has been populated by ... Keywords: CHP, Diagnosis, Neural networks, Optimisation, Plant models

Giovanni Cerri; Sandra Borghetti; Coriolano Salvini

2006-10-01T23:59:59.000Z

36

Survey of Impacts of Environmental Controls on Plant Heat Rate  

Science Conference Proceedings (OSTI)

Environmental controls for sulfur and nitrogen oxides, particulates, mercury, and other pollutants reduce the efficiency of power plants. This report documents the impacts of state-of-the-art environmental controls on power plant heat rate and identifies ways these impacts may be reduced through operating and design changes.

2009-12-07T23:59:59.000Z

37

Ameren Illinois (Electric)- Commercial Kitchen and Grocery Incentives Program  

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

Ameren offers several programs targeted at grocery stores, convenience stores, refrigerated warehouses or spaces, and commercial kitchens. These programs are designed to improve the energy...

38

Energy Saving Holiday Kitchen Trivia | Department of Energy  

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

Efficiency & Renewable Energy What does this mean for me? Knowing which kitchen appliances are most efficient can save you money this holiday season. Cooking is an important...

39

Guidelines for Designing Kitchen Appliances for the Elderly.  

E-Print Network (OSTI)

??The number of elderly people in the United States is growing due to the baby boom. The life span of kitchen appliances is also growing… (more)

RAVEN, SUSAN

2006-01-01T23:59:59.000Z

40

Section 5.3.1 Heat-Recovery Water Heating: Greening Federal Facilities...  

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

heat pumps, chillers, steam condensate lines, hot air associated with kitchen and laundry facilities, power-generation equipment (such as microturbines or fuel cells), and...

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


41

Dual Heating and Cooling Sorption Heat Pump for a Food Plant  

E-Print Network (OSTI)

Complex compound sorption reactions are ideally suited for use in high temperature lift industrial heat pump cycles. Complex compound heat pumping and refrigeration provides a number of energy-saving advantages over present vapor compression systems beyond the elimination of CFCs. The elimination of moving parts in complex compound equipment lowers maintenance cost. Since ammonia is used as the refrigerant, the replacement of the mechanical compressor by the complex compound allows for direct modular integration into existing refrigeration plants. The availability of waste heat at a user's site allows for the further potential of substantially reduced energy costs.

Rockenfeller, U.; Dooley, B.

1993-03-01T23:59:59.000Z

42

Kitchen Ventilation Should be High Performance (Not Optional)  

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

Kitchen Ventilation Kitchen Ventilation Should be High Performance (not Optional) Brett C. Singer Residential Building Systems & Indoor Environment Groups Lawrence Berkeley National Laboratory Building America Technical Update Denver, CO April 30, 2013 Acknowledgements PROGRAM SUPPORT *U.S. Department of Energy - Building America Program *U.S. Environmental Protection Agency - Indoor Environments Division *U.S. Department of Housing and Urban Development - Office of Healthy Homes & Lead Hazard Control *California Energy Commission - Public Interest Energy Research Program TECHNICAL CONTRIBUTIONS *Woody Delp, Tosh Hotchi, Melissa Lunden, Nasim Mullen, Chris Stratton, Doug Sullivan, Iain Walker Kitchen Ventilation Simplified PROBLEM: * Cooking burners & cooking produce odors, moisture

43

Deaerator heat exchanger for combined cycle power plant  

SciTech Connect

This patent describes a combined cycle power plant. It comprises a steam turbine including an inlet portion for receiving motive steam and an exhaust portion for exhausting the motive steam that is spent by the steam turbine; a condenser connected to the exhaust portion of the steam turbine for receiving the spent motive steam and for condensing the spent motive steam to a supply of condensate; a gas turbine including an exhaust portion for exhausting waste heat that is produced by the gas turbine in the form of exhaust gases; a heat recovery steam generator connected between the exhaust portion of the gas turbine and the steam turbine, for receiving the waste heat exhausted by the gas turbine, for generating the motive steam from a supply of feedwater heated by the waste heat, and for supplying the motive steam to the steam turbine; a deaerator connected to the condenser for receiving the supply of condensate and for deaerating the condensate to provide the supply of feedwater to the heat recovery steam generator; and a heat exchanger.

Pavel, J.; Richardson, B.L.

1990-10-09T23:59:59.000Z

44

Parallel Condensing System As A Heat Sink For Power Plants  

E-Print Network (OSTI)

Conventional heat sink technologies of use the condenser/cooling tower arrangement or an air cooled condenser for condensing exhaust steam from steam turbines. Each of these two systems have certain advantages as well as disadvantages. This paper discusses an alternate heat sink technology known as the Parallel Condensing System which is a combination of the cooling tower and the air cooled technologies. The Parallel Condensing System offers the advantages associated the conventional technologies but minimizes the disadvantages. As a result the Parallel Condensing System can offer greater value to the plant operator under certain circumstances.

Akhtar, S. Z.

2001-05-01T23:59:59.000Z

45

Energy Saving Holiday Kitchen Trivia | Department of Energy  

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

Saving Holiday Kitchen Trivia Saving Holiday Kitchen Trivia Energy Saving Holiday Kitchen Trivia November 20, 2012 - 4:08pm Addthis Did you know that your dishwasher can be used as an oven in emergencies? | Photo courtesy of Chris Gunn, NREL. Did you know that your dishwasher can be used as an oven in emergencies? | Photo courtesy of Chris Gunn, NREL. Erik Hyrkas Erik Hyrkas Media Relations Specialist, Office of Energy Efficiency & Renewable Energy What does this mean for me? Knowing which kitchen appliances are most efficient can save you money this holiday season. Cooking is an important part of the holiday season. Food brings people together in ways many material gifts cannot. But with winter temperatures creeping in, electricity savings are something to keep in mind, especially

46

Heat Transfer and Latent Heat Storage in Inorganic Molten Salts for Concentrating Solar Power Plants  

Science Conference Proceedings (OSTI)

A key technological issue facing the success of future Concentrating Solar Thermal Power (CSP) plants is creating an economical Thermal Energy Storage (TES) system. Current TES systems use either sensible heat in fluids such as oil, or molten salts, or use thermal stratification in a dual-media consisting of a solid and a heat-transfer fluid. However, utilizing the heat of fusion in inorganic molten salt mixtures in addition to sensible heat , as in a Phase change material (PCM)-based TES, can significantly increase the energy density of storage requiring less salt and smaller containers. A major issue that is preventing the commercial use of PCM-based TES is that it is difficult to discharge the latent heat stored in the PCM melt. This is because when heat is extracted, the melt solidifies onto the heat exchanger surface decreasing the heat transfer. Even a few millimeters of thickness of solid material on heat transfer surface results in a large drop in heat transfer due to the low thermal conductivity of solid PCM. Thus, to maintain the desired heat rate, the heat exchange area must be large which increases cost. This project demonstrated that the heat transfer coefficient can be increase ten-fold by using forced convection by pumping a hyper-eutectic salt mixture over specially coated heat exchanger tubes. However,only 15% of the latent heat is used against a goal of 40% resulting in a projected cost savings of only 17% against a goal of 30%. Based on the failure mode effect analysis and experience with pumping salt at near freezing point significant care must be used during operation which can increase the operating costs. Therefore, we conclude the savings are marginal to justify using this concept for PCM-TES over a two-tank TES. The report documents the specialty coatings, the composition and morphology of hypereutectic salt mixtures and the results from the experiment conducted with the active heat exchanger along with the lessons learnt during experimentation.

Mathur, Anoop [Terrafore Inc.] [Terrafore Inc.

2013-08-14T23:59:59.000Z

47

Heat Integration and Heat Recovery at a Large Chemical Manufacturing Plant  

E-Print Network (OSTI)

The Honeywell chemical plant located in Hopewell, Virginia includes processing units that purify raw phenol, react the phenol with hydrogen to form crude cyclohexanone, and purify the crude cyclohexanone. In order to reduce energy usage, two opportunities for heat recovery and heat integration were identified. A feasibility study and economic analysis were performed on the two opportunities, and both projects were implemented. The first project utilized the heat contained in a distillation process overheads stream to preheat the raw material entering the distillation process. This was accomplished via a heat exchanger, and reduced the utility steam requirement by 10,000 pph. The second project utilized the heat generated by the hydrogenation reaction (in the form of waste heat steam) to preheat the feed material in an adjacent process. This was accomplished via a heat exchanger, and reduced the utility steam requirement by 8,000 pph. These two energy projects required $1.1 million of capital and saved $1.0 million in utility steam annually.

Togna, K .A.

2012-01-01T23:59:59.000Z

48

Cornell's conversion of a coal fired heating plant to natural Gas -BACKGROUND: In December 2009, the Combined Heat and Power Plant  

E-Print Network (OSTI)

Cornell's conversion of a coal fired heating plant to natural Gas University began operating with natural gas, instead of the coal-fired generators of the coal that had been stockpiled, the Plant is running completely on natural gas

Keinan, Alon

49

Assessment of next generation nuclear plant intermediate heat exchanger design.  

DOE Green Energy (OSTI)

The Next Generation Nuclear Plant (NGNP), which is an advanced high temperature gas reactor (HTGR) concept with emphasis on production of both electricity and hydrogen, involves helium as the coolant and a closed-cycle gas turbine for power generation with a core outlet/gas turbine inlet temperature of 900-1000 C. In the indirect cycle system, an intermediate heat exchanger is used to transfer the heat from primary helium from the core to the secondary fluid, which can be helium, nitrogen/helium mixture, or a molten salt. The system concept for the vary high temperature reactor (VHTR) can be a reactor based on the prismatic block of the GT-MHR developed by a consortium led by General Atomics in the U.S. or based on the PBMR design developed by ESKOM of South Africa and British Nuclear Fuels of U.K. This report has made an assessment on the issues pertaining to the intermediate heat exchanger (IHX) for the NGNP. A detailed thermal hydraulic analysis, using models developed at ANL, was performed to calculate heat transfer, temperature distribution, and pressure drop. Two IHX designs namely, shell and straight tube and compact heat exchangers were considered in an earlier assessment. Helical coil heat exchangers were analyzed in the current report and the results were compared with the performance features of designs from industry. In addition, a comparative analysis is presented between the shell and straight tube, helical, and printed circuit heat exchangers from the standpoint of heat exchanger volume, primary and secondary sides pressure drop, and number of tubes. The IHX being a high temperature component, probably needs to be designed using ASME Code Section III, Subsection NH, assuming that the IHX will be classified as a class 1 component. With input from thermal hydraulic calculations performed at ANL, thermal conduction and stress analyses were performed for the helical heat exchanger design and the results were compared with earlier-developed results on shell and straight tube and printed circuit heat exchangers.

Majumdar, S.; Moisseytsev, A.; Natesan, K.; Nuclear Engineering Division

2008-10-17T23:59:59.000Z

50

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network (OSTI)

Calculations for the Heat Exchanger Network Heat-Exchangepower-generation heat exchangers. and storage vessels.and Valves None Heat Exchangers. Distillation Column, Low

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

51

Waste Heat Recovery in Cement Plants By Fluidized Beds  

E-Print Network (OSTI)

Not too many years ago energy costs and efficiencies were virtually ignored by corporate decision makers. The prevailing attitude was 'my business is manufacturing and my capital is best spent improving and expanding my manufacturing capacity.' With energy now contributing a significant fraction of the overall product cost in many industries, there is general recognition that control of fuel and electric costs is just as important to remaining competitive as is improving manufacturing methods. This is particularly true in the cement industry. Cement manufacture consists of mining and grinding rocks, melting them to form clinkers, then grinding those clinkers to a powder. Through recovery of waste heat and inclusion of technology such as flash calciners, the industry has reduced the fuel requirement per ton of cement from about 7 million Btu per ton in old plants to less than 3 million Btu per ton in the most modern plants.

Fraley, L. D.; Ksiao, H. K.; Thunem, C. B.

1984-01-01T23:59:59.000Z

52

Nondestructive Evaluation: 10th EPRI Balance-of-Plant Heat Exchanger NDE Symposium Proceedings  

Science Conference Proceedings (OSTI)

EPRI's 10th Balance-of-Plant Heat Exchanger NDE Symposiumheld in San Antonio, Texas, June 1618, 2008focused on lessons learned and experiences related to inspection, repair, and condition assessment of balance-of-plant (BOP) heat exchangers. This year's symposium scope has extended to non-heat exchanger BOP components, such as buried piping and storage tanks.

2008-08-27T23:59:59.000Z

53

KitchenAid: ENERGY STAR Referral (KSRG25FVMS*) | Department of...  

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

KSRG25FVMS*) KitchenAid: ENERGY STAR Referral (KSRG25FVMS*) September 13, 2011 DOE referred the matter of Whirlpool's KitchenAid refrigerator model KSRG25FVMS* to the U.S....

54

KitchenAid: ENERGY STAR Referral (KSRS25RV*) | Department of...  

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

KSRS25RV*) KitchenAid: ENERGY STAR Referral (KSRS25RV*) September 6, 2011 DOE referred the matter of Whirlpool's KitchenAid refrigerator model KSRS25RV* to the U.S. Environmental...

55

Minimum Energy Ventilation for Fast Food Restaurant Kitchens  

Science Conference Proceedings (OSTI)

Cooking equipment exhaust systems have a significant impact on the energy consumption of fast food restaurants. This research investigated issues that relate to the energy performance of commercial kitchen ventilation systems and demonstrated that significant energy and cost savings can be achieved by reducing ventilation rates.

1996-10-30T23:59:59.000Z

56

Kitchen Appliance Upgrades Improve Water Efficiency at DOD Exchange Facilities: Best Management Practice Case Study #11: Commercial Kitchen Equipment (Brochure)  

SciTech Connect

The Exchange, formerly the Army and Air Force Exchange Service (AAFES), is a joint military activity and the U.S. Department of Defense?s (DOD) oldest and largest retailer. The Exchange is taking a leadership role in water efficiency improvements in their commercial kitchens by integrating water efficiency concepts into the organization?s overall sustainability plan and objectives.

Not Available

2011-09-01T23:59:59.000Z

57

Using heat demand prediction to optimise Virtual Power Plant production capacity  

E-Print Network (OSTI)

CHP appliances on the grid in the near future. In case of a microCHP, adding a heat buffer (hot water tank1 Using heat demand prediction to optimise Virtual Power Plant production capacity Vincent Bakker that generate electricity (and heat) at the kilowatt level, which allows them to be installed in households

Al Hanbali, Ahmad

58

Heat Stress Management Program for Power Plants: Clothing Update of EPRI NP-4453-L -- 1991 Report  

Science Conference Proceedings (OSTI)

Clothing ensembles that protect workers from radioactive skin contamination can potentially increase the risk for heat stress. To address this issue, most nuclear power plants calculate action times (stay times) based on the ambient temperature and humidity, work level, and the protective clothing worn. The 1991 EPRI Heat Stress Management Program for Power Plants (report NP-4453-L, Rev. 1) described common methods for evaluating heat stress and provided the necessary adjustment factors for five specific...

1998-08-25T23:59:59.000Z

59

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network (OSTI)

D. , The Central Reciever Power Plant: An Environmental,of the Proposed Solar Power Plant Design The Impact ofGenerated by this Solar Power Plant The Impact of Storage

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

60

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network (OSTI)

STORAGE FOR A SOLAR THERMAL POWER PLANT Thomas F. Baldwin.a central solar thermal power plant. A variety of heliostatSTORAGE FOR A SOLAR THERMAL POWER PLANT Thomas F. Baldwin.

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

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


61

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network (OSTI)

Summary of the Proposed Solar Power Plant Design The ImpactGenerated by this Solar Power Plant The Impact of StorageVessel Design on the Solar Power Plant III I;l f> (I Q I)

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

62

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network (OSTI)

of the Proposed Solar Power Plant Design The Impact ofGenerated by this Solar Power Plant The Impact of StorageDesign on the Solar Power Plant III I;l f> (I Q I) II (I

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

63

Heat rejection from geothermal power plants. Final report  

DOE Green Energy (OSTI)

Comprehensive computer programs are developed for purposes of determining cooling makeup water requirements and electricity production costs for evaporative (wet) and dry/wet-peaking cooling towers, which are the principal cooling technologies for rejecting the heat from hydrothermal power plants. Parametric economic analyses were performed for both flash steam and binary conversion processes for various combinations of resource temperatures, climatological types, hydrothermal fuel costs, and cooling system makeup water costs. Results of these analyses are presented in a number of curves showing relative busbar cost of electricity as a function of relative amount of cooling makeup water required. These curves show that use of wet/dry cooling systems can cut makeup water requirements by factors of about 2 to 4 at the cost of an additional 10% to 25% in the busbar price of electricity. Turbine-generator performance curves are constructed for a range of condensing conditions for both the flash steam and hydrocarbon binary-cycle turbines. Estimates of hydrothermal resources in the western United States are also given.

Horsak, R.D.

1979-11-01T23:59:59.000Z

64

Heat exchanger for fuel cell power plant reformer  

DOE Patents (OSTI)

A heat exchanger uses the heat from processed fuel gas from a reformer for a fuel cell to superheat steam, to preheat raw fuel prior to entering the reformer and to heat a water-steam coolant mixture from the fuel cells. The processed fuel gas temperature is thus lowered to a level useful in the fuel cell reaction. The four temperature adjustments are accomplished in a single heat exchanger with only three heat transfer cores. The heat exchanger is preheated by circulating coolant and purge steam from the power section during startup of the latter.

Misage, Robert (Manchester, CT); Scheffler, Glenn W. (Tolland, CT); Setzer, Herbert J. (Ellington, CT); Margiott, Paul R. (Manchester, CT); Parenti, Jr., Edmund K. (Manchester, CT)

1988-01-01T23:59:59.000Z

65

Kitchen Appliance Upgrades Improve Water Efficiency at DOD Exchange Facilities: Best Management Practice Case Study #11: Commercial Kitchen Equipment (Brochure), Federal Energy Management Program (FEMP)  

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

kitchens are often forgotten when people kitchens are often forgotten when people begin to think about performing water audits. Kitchens can be out of sight, out of mind; a commercial kitchen, however, can consume large amounts of water and energy if inefficient appliances are installed. The Exchange, formerly the Army and Air Force Exchange Service (AAFES), is taking a leadership role in water efficiency improvements in their commercial kitchens by integrating water efficiency concepts into the organization's overall sustainability plan and objectives. The Exchange is a joint military activity, the U.S. Department of Defense's (DOD) oldest and largest retailer. The Exchange provides merchandise and services to military personnel, operating more than 3,100 facilities FEDERAL ENERGY MANAGEMENT PROGRAM

66

Kitchen Appliance Upgrades Improve Water Efficiency at DOD Exchange Facilities: Best Management Practice Case Study #11: Commercial Kitchen Equipment (Brochure), Federal Energy Management Program (FEMP)  

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

kitchens are often forgotten when people kitchens are often forgotten when people begin to think about performing water audits. Kitchens can be out of sight, out of mind; a commercial kitchen, however, can consume large amounts of water and energy if inefficient appliances are installed. The Exchange, formerly the Army and Air Force Exchange Service (AAFES), is taking a leadership role in water efficiency improvements in their commercial kitchens by integrating water efficiency concepts into the organization's overall sustainability plan and objectives. The Exchange is a joint military activity, the U.S. Department of Defense's (DOD) oldest and largest retailer. The Exchange provides merchandise and services to military personnel, operating more than 3,100 facilities FEDERAL ENERGY MANAGEMENT PROGRAM

67

Plant Support Engineering: Heat Exchanger Tube Plugging Calculator  

Science Conference Proceedings (OSTI)

Many heat exchangers of various designs and construction are used in any power generating facility. The effect of inefficient heat exchangers can range from being a slow economic drain on the generation facility to completely shutting it down.

2009-06-29T23:59:59.000Z

68

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network (OSTI)

to electricity. Pumped-hydroelectric storage and batteryis pumped between the heat exchangers and the storage unit.

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

69

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network (OSTI)

nZ The brick and gas heat capacities, cross-sectional areaConductivity! 10B9"K, W! mOK Heat Capacity! 1089°K, J/kg"KHelium has the highest heat capacity per unit mass and the

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

70

How Do You Save Energy in the Kitchen? | Department of Energy  

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

in the Kitchen? in the Kitchen? How Do You Save Energy in the Kitchen? October 28, 2010 - 7:30am Addthis On Monday, Amy pointed you to a video Q&A session in which Energy Secretary Steven Chu answered some reader-submitted questions. One of the questions that Secretary Chu answered was about dishwashing. He confirmed that using a dishwasher does, in fact, save energy and water over washing dishes by hand. If you have a dishwasher, this is one simple way you can save energy in the kitchen. (And as Amy pointed out, it could be a reason to consider installing a dishwasher if you don't have one!) We all spend time in the kitchen, and the appliances and water we use there can drive up our utility bills, but smart choices can help keep your costs down. How do you save energy in the kitchen?

71

Using Less Energy in the Kitchen on Thanksgiving | Department of Energy  

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

Using Less Energy in the Kitchen on Thanksgiving Using Less Energy in the Kitchen on Thanksgiving Using Less Energy in the Kitchen on Thanksgiving November 16, 2012 - 1:36pm Addthis You can use less energy in your kitchen and still prepare the perfect Thanksgiving feast. | Photo courtesy of ©iStockphoto.com/YinYang You can use less energy in your kitchen and still prepare the perfect Thanksgiving feast. | Photo courtesy of ©iStockphoto.com/YinYang Erin Connealy Communications Specialist, Office of Energy Efficiency and Renewable Energy What does this mean for me? You can save energy (and money) while doing your Thanksgiving cooking with these tips. Thanksgiving is a great time of year to bring friends and families together. It also means spending time in the kitchen to prepare the traditional Thanksgiving feast. If you're like me, you're always looking

72

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network (OSTI)

on June, 1978 prices, AN OVERVIEW OF THE SOLAR POWER PLANTstorage for a solar power plant at a reasonable price usingsolar power plant energy storage for a reasonable price

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

73

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network (OSTI)

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

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

74

Examination of Heat Recovery Steam Generator (HRSG) Plants  

Science Conference Proceedings (OSTI)

Previous EPRI reports have documented problems associated with operation and maintenance of complex heat recovery steam generators (HRSGs). The EPRI report Heat Recovery Steam Generator Tube Failure Manual (1004503) provides information about known HRSG tube failures and necessary steps that can be taken to diagnose and prevent similar problems. The EPRI report Delivering High Reliability Heat Recovery Steam Generators (1004240) provides guidance for continued and reliable operation of HRSGs from initial...

2005-11-30T23:59:59.000Z

75

EA-1573-S1: Proposed Renewable Fuel Heat Plant Improvements at the National  

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

573-S1: Proposed Renewable Fuel Heat Plant Improvements at the 573-S1: Proposed Renewable Fuel Heat Plant Improvements at the National Renewable Energy Laboratory South Table Mountain Site, Golden, CO EA-1573-S1: Proposed Renewable Fuel Heat Plant Improvements at the National Renewable Energy Laboratory South Table Mountain Site, Golden, CO DOE's Golden Field Office has prepared a draft Supplemental Environmental Assessment (SEA) for proposed improvements to the Renewable Fuel Heat Plant (RFHP) at the National Renewable Energy Laboratory's South Table Mountain site. The SEA analyzes the potential environmental impacts associated with the proposed improvements tot he RFHP consisting of construction and operation of an onsite woodchip fuel storage silo and an expansion of woodchip fuel sources to a regional scale.

76

EA-1887: Renewable Fuel Heat Plant Improvements at the National Renewable  

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

Renewable Fuel Heat Plant Improvements at the National Renewable Fuel Heat Plant Improvements at the National Renewable Energy Laboratory, Golden, Colorado (DOE/EA-1573-S1) EA-1887: Renewable Fuel Heat Plant Improvements at the National Renewable Energy Laboratory, Golden, Colorado (DOE/EA-1573-S1) Summary This EA evaluates the environmental impacts of a proposal to make improvements to the Renewable Fuel Heat Plant including construction and operation of a wood chip storage silo and the associated material handling conveyances and utilization of regional wood sources. DOE/EA-1887 supplements a prior EA (DOE/EA-1573, July 2007) and is also referred to as DOE/EA-1573-S1. Public Comment Opportunities None available at this time. Documents Available for Download April 9, 2012 EA-1887: Finding of No Significant Impact

77

EVALUATION OF A SULFUR OXIDE CHEMICAL HEAT STORAGE PROCESS FOR A STEAM SOLAR ELECTRIC PLANT  

E-Print Network (OSTI)

Flows and stream conditions in steam power cycle. Table 4.1in the low-temperature reactor system. Steam power cycle 8.1Heat Storage System for a Solar Steam Power Plant." 12th

Dayan, J.

2011-01-01T23:59:59.000Z

78

9th EPRI Balance-of-Plant Heat Exchanger NDE Symposium Proceedings  

Science Conference Proceedings (OSTI)

The 9th EPRI Balance-of-Plant Heat Exchanger NDE Symposium was held in Big Sky, Montana on June 26 28, 2006. It consisted of four pre-symposium short courses and two and one-half days of combined paper presentations and vendors fair. Attendees included representatives from domestic and international utilities, research organizations, NDE service and equipment vendors, and heat exchanger component repair and replacement organizations. This biennial symposium serves as a forum for plant engineers, NDE spec...

2006-08-11T23:59:59.000Z

79

Nondestructive Evaluation: 11th EPRI Balance-of-Plant Heat Exchanger NDE Symposium Proceedings  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute's (EPRI's) 11th Balance-of-Plant Heat Exchanger Nondestructive Evaluation Symposiumheld in Stevenson, Washington, August 911, 2010 focused on nondestructive evaluation (NDE) technologies and lessons learned related to the inspection, condition assessment, and repair of balance-of-plant (BOP) heat exchanger components. As in the past, this year's symposium included pre-symposium tutorial courses followed by technology transfer through paper presentations and the vendo...

2010-09-30T23:59:59.000Z

80

Remote Measurement of Heat Flux from Power Plant Cooling Lakes  

Science Conference Proceedings (OSTI)

Laboratory experiments have demonstrated a correlation between the rate of heat loss q? from an experimental fluid to the air above and the standard deviation ? of the thermal variability in images of the fluid surface. These experimental results ...

Alfred J. Garrett; Robert J. Kurzeja; Eliel Villa-Aleman; James S. Bollinger; Malcolm M. Pendergast

2013-06-01T23:59:59.000Z

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


81

Theoretical Design of Thermosyphon for Process Heat Transfer from NGNP to Hydrogen Plant  

DOE Green Energy (OSTI)

The Next Generation Nuclear Plant (NGNP) will most likely produce electricity and process heat, with both being considered for hydrogen production. To capture nuclear process heat, and transport it to a distant industrial facility requires a high temperature system of heat exchangers, pumps and/or compressors. The heat transfer system is particularly challenging not only due to the elevated temperatures (up to ~ 1300K) and industrial scale power transport (=50 MW), but also due to a potentially large separation distance between the nuclear and industrial plants (100+m) dictated by safety and licensing mandates. The work reported here is the preliminary analysis of two-phase thermosyphon heat transfer performance with alkali metals. A thermosyphon is a device for transporting heat from one point to another with quite extraordinary properties. In contrast to single-phased forced convective heat transfer via ‘pumping a fluid’, a thermosyphon (also called a wickless heat pipe) transfers heat through the vaporization / condensing process. The condensate is further returned to the hot source by gravity, i.e. without any requirement of pumps or compressors. With this mode of heat transfer, the thermosyphon has the capability to transport heat at high rates over appreciable distances, virtually isothermally and without any requirement for external pumping devices. Two-phase heat transfer by a thermosyphon has the advantage of high enthalpy transport that includes the sensible heat of the liquid, the latent heat of vaporization, and vapor superheat. In contrast, single-phase forced convection transports only the sensible heat of the fluid. Additionally, vapor-phase velocities within a thermosyphon are much greater than single-phase liquid velocities within a forced convective loop. Thermosyphon performance can be limited by the sonic limit (choking) or vapor flow and/or by condensate entrainment. Proper thermosyphon requires analysis of both.

Piyush Sabharwall; Mike Patterson; Fred Gunnerson

2008-09-01T23:59:59.000Z

82

Kinect in the kitchen: testing depth camera interactions in practical home environments  

Science Conference Proceedings (OSTI)

Depth cameras have become a fixture of millions of living rooms thanks to the Microsoft Kinect. Yet to be seen is whether they can succeed as widely in other areas of the home. This research takes the Kinect into real-life kitchens, where touchless gestural ... Keywords: cooking, depth camera, gestures, home, joint selection, kinect, kitchen, push gesture, recipes

Galen Panger

2012-05-01T23:59:59.000Z

83

Ambient kitchen: designing situated services using a high fidelity prototyping environment  

Science Conference Proceedings (OSTI)

The Ambient Kitchen is a high fidelity prototype for exploring the design of pervasive computing algorithms and applications for everyday environments. The environment integrates data projectors, cameras, RFID tags and readers, object mounted accelerometers, ... Keywords: kitchen tasks, multi-modal prompting, people with dementia, pervasive computing, prompting, sensor networks assistance in daily activities, ubiquitous computing

Patrick Olivier; Guangyou Xu; Andrew Monk; Jesse Hoey

2009-06-01T23:59:59.000Z

84

Design Option of Heat Exchanger for the Next Generation Nuclear Plant  

DOE Green Energy (OSTI)

The Next Generation Nuclear Plant (NGNP), a very High temperature Gas-Cooled Reactor (VHTGRS) concept, will provide the first demonstration of a closed-loop Brayton cycle at a commercial scale of a few hundred megawatts electric and hydrogen production. The power conversion system (PCS) for the NGNP will take advantage of the significantly higher reactor outlet temperatures of the VHTGRS to provide higher efficiencies than can be achieved in the current generation of light water reactors. Besides demonstrating a system design that can be used directly for subsequent commercial deployment, the NGNP will demonstrate key technology elements that can be used in subsequent advanced power conversion systems for other Generation IV reactors. In anticipation of the design, development and procurement of an advanced power conversion system for the NGNP, the system integration of the NGNP and hydrogen plant was initiated to identify the important design and technology options that must be considered in evaluating the performance of the proposed NGNP. As part of the system integration of the VHTGRS and hydrogen production plant, the intermediate heat exchanger is used to transfer the process heat from VHTGRS to hydrogen plant. Therefore, the design and configuration of the intermediate heat exchanger are very important. This paper will include analysis of one stage versus two stage heat exchanger design configurations and thermal stress analyses of a printed circuit heat exchanger, helical coil heat exchanger, and shell/tube heat exchanger.

Eung Soo Kim; Chang Oh

2008-09-01T23:59:59.000Z

85

Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 3, Water heaters, pool heaters, direct heating equipment, and mobile home furnaces  

SciTech Connect

This is Volume 3 in a series of documents on energy efficiency of consumer products. This volume discusses energy efficiency of water heaters. Water heaters are defined by NAECA as products that utilize oil, gas, or electricity to heat potable water for use outside the heater upon demand. These are major appliances, which use a large portion (18% on average) of total energy consumed per household (1). They differ from most other appliances in that they are usually installed in obscure locations as part of the plumbing and are ignored until they fail. Residential water heaters are capable of heating water up to 180{degrees}F, although the setpoints are usually set lower.

Not Available

1993-11-01T23:59:59.000Z

86

How Do You Save Energy in the Kitchen? | Department of Energy  

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

How Do You Save Energy in the Kitchen? How Do You Save Energy in the Kitchen? How Do You Save Energy in the Kitchen? October 28, 2010 - 7:30am Addthis On Monday, Amy pointed you to a video Q&A session in which Energy Secretary Steven Chu answered some reader-submitted questions. One of the questions that Secretary Chu answered was about dishwashing. He confirmed that using a dishwasher does, in fact, save energy and water over washing dishes by hand. If you have a dishwasher, this is one simple way you can save energy in the kitchen. (And as Amy pointed out, it could be a reason to consider installing a dishwasher if you don't have one!) We all spend time in the kitchen, and the appliances and water we use there can drive up our utility bills, but smart choices can help keep your costs down.

87

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

E-Print Network (OSTI)

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

Skogestad, Sigurd

88

Modeling And Optimal Design Of A Central Solar Heating Plant With Heat Storage In The Ground Using Modelica  

E-Print Network (OSTI)

The paper discusses the modeling of a central solar heating plant with seasonal storage in the ground using the new object-oriented physical systems modeling language Modelica. Main emphasis is put on the hierarchical decomposition of the system model and on the re-engineering of an existing Fortran code for the ground store model. The object-oriented physical system model is compiled to a mathematical description in the form of ordinary di#erential equations #ODE#. The ODE model is used to formulate and solve nonlinear optimization problems. We show design optimization results obtained for given weather conditions in Switzerland. The heating system is designed to cover the annual load of a housing area for space heating of about 500 MWh to 95# by solar. The optimization results have been validated with the help of initial-value simulations using TRNSYS, a special-purpose simulation software for thermal energy systems.

R. Franke

1998-01-01T23:59:59.000Z

89

Heat Transfer and Latent Heat Storage in Inorganic Molten Salts for Concentrating Solar Power Plants  

DOE Green Energy (OSTI)

The report documents the specialty coatings, the composition and morphology of hypereutectic salt mixtures and the results from the experiment conducted with the active heat exchanger along with the lessons learnt during experimentation.

Mathur, Anoop [Terrafore Inc.

2013-08-14T23:59:59.000Z

90

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

E-Print Network (OSTI)

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

Demirel, Melik C.

91

Optimum Heat Power Cycles for Process Industrial Plants  

E-Print Network (OSTI)

Electric power cogeneration is compared with direct mechanical drives emphasizing the technical aspects having the greatest impact on energy economics. Both steam and gas turbine applications are discussed and practical methods of developing existing systems for maximum effectiveness are explained. Specific plant cases are cited as examples of major dollar savings opportunities.

Waterland, A. F.

1982-01-01T23:59:59.000Z

92

Status of waste heat utilization and dual-purpose plant projects  

SciTech Connect

From joint meeting of the American Nuclear Society and the Atomic Industrial Forum and Nuclear Energy Exhibition; San Francisco, California, USA (11 Nov 1973). The use of power plant thermal effluents, in the form of warm water or steam, to heat buildings for raising both plant and animal food crops, in aquaculture to produce fish and seafood, in outdoor agriculture, and in industry for distilling water and processing chemicals is discussed and illustrated. Facilities engaged in studying each of these waste heat applications and the results of such studies are described. It is concluded that rising energy costs and diminishing natural supplies of food will provide the incentive for the funther development of commercial uses of waste heat from power plants. (LC L)

Beall, S.E. Jr.; Yarosh, M.M.

1973-01-01T23:59:59.000Z

93

A computer program to analyze cogeneration plant heat balances and equipment design  

Science Conference Proceedings (OSTI)

This paper describes a computer program designed to calculate and analyze cogeneration plant heat balances and equipment and to plot heat balance diagrams. For normal design point conditions, the program calculates gas turbine performance, designs a heat recovery boiler to suit the process requirements, calculates a steam turbine performance and deaerator balance to complete the cycle. In addition, the program will calculate off-design performance for a supplementary firing option or for changes in ambient conditions, gas turbine part load or process conditions.

Stewart, J.C.; Hsun, C.F.

1987-01-01T23:59:59.000Z

94

8th EPRI Balance-of-Plant Heat Exchanger NDE Symposium  

Science Conference Proceedings (OSTI)

The Eighth EPRI Balance-of-Plant Heat Exchanger NDE Symposium was held in Key West, Florida on June 21-23, 2004. It consisted of three pre-symposium short courses and two and one-half days of combined paper presentations and vendor fair. Attendees included representatives from domestic and international utilities, research organizations NDE service and equipment vendors, and repair/replacement organizations. This biennial symposium serves as a forum for plant engineers and NDE specialists to meet, discus...

2004-08-25T23:59:59.000Z

95

DESIGN STUDY OF A NUCLEAR POWER PLANT FOR 100-KW ELECTRIC AND 400-KW HEAT CAPACITY  

SciTech Connect

A conceptional design study was made of a lowpower ''package'' reactor plant for the production of 100 kw of electrical power and 400 kw of heat at remote Arctic installations. The power plant steam generator is proposed to be an unmanned, heterogeneous, boilingtype reactor capable of continuous operation for extended periods. The design is based on data derived from experiments with boiling-type reactors conducted by Argorne at the Reactor Testing Station, Arco, Idaho.

Treshow, M.; Snider, A.R.; Shaftman, D.H.

1955-05-01T23:59:59.000Z

96

Evaluation of Next Generation Nuclear Power Plant (NGNP) Intermediate Heat Exchanger (IHX) Operating Conditions  

DOE Green Energy (OSTI)

This report summarizes results of a preliminary evaluation to determine the operating conditions for the Next Generation Nuclear Plant (NGNP) Intermediate Heat Exchanger (IHX) that will transfer heat from the reactor primary system to the demonstration hydrogen production plant(s). The Department of Energy is currently investigating two primary options for the production of hydrogen using a high temperature reactor as the power source. These options are the High Temperature Electrolysis (HTE) and Sulfur-Iodine (SI) thermochemical hydrogen production processes. However, since the SI process relies entirely on process heat from the reactor, while the HTE process relies primarily on electrical energy with only a small amount of process heat required, the design of the IHX is dictated by the SI process heat requirements. Therefore, the IHX operating conditions were defined assuming 50 MWt is available for the production of hydrogen using the SI process. Three configurations for the intermediate loop were evaluated, including configurations for both direct and indirect power conversion systems. The HYSYS process analysis software was used to perform sensitivity studies to determine the influence of reactor outlet temperatures, intermediate loop working fluids (helium and molten salt), intermediate loop pressures, and intermediate loop piping lengths on NGNP performance and IHX operating conditions. The evaluation of NGNP performance included assessments of overall electric power conversion efficiency and estimated hydrogen production efficiency. Based on these evaluations, recommended IHX operating conditions are defined.

E. A. Harvego

2006-04-01T23:59:59.000Z

97

Slovak Centre of Biomass Use for Energy Wood Fired Heating Plant in Slovakia  

E-Print Network (OSTI)

Slovak Centre of Biomass Use for Energy Slovakia 1 Wood Fired Heating Plant in Slovakia Energy energy User behaviour ESCOs Biomass Education Architects and engineers Wind Other Financial institutions;Slovak Centre of Biomass Use for Energy Slovakia 2 Biomass is considered as the most perspective

98

Slovak Centre of Biomass Use for Energy Wood Fired Heating Plant in Slovakia  

E-Print Network (OSTI)

Slovak Centre of Biomass Use for Energy Slovakia 1 Wood Fired Heating Plant in Slovakia Energy energy User behaviour ESCOs Biomass Education Architects and engineers Wind Other Financial institutions countries it is already implemented for several years. #12;Slovak Centre of Biomass Use for Energy Slovakia

99

Property:Building/SPBreakdownOfElctrcityUseKwhM2LargeKitchens | Open Energy  

Open Energy Info (EERE)

LargeKitchens LargeKitchens Jump to: navigation, search This is a property of type String. Large kitchens Pages using the property "Building/SPBreakdownOfElctrcityUseKwhM2LargeKitchens" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.763086941039 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.409356725146 + Sweden Building 05K0005 + 2.13953488372 + Sweden Building 05K0006 + 0.383200490497 + Sweden Building 05K0007 + 3.38701556508 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.294507436313 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.177556818182 + Sweden Building 05K0012 + 0.0953379731147 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 +

100

Property:Building/SPBreakdownOfElctrcityUseKwhM2SmallKitchensCoffeeRms |  

Open Energy Info (EERE)

SmallKitchensCoffeeRms SmallKitchensCoffeeRms Jump to: navigation, search This is a property of type String. Small kitchens / coffee rooms Pages using the property "Building/SPBreakdownOfElctrcityUseKwhM2SmallKitchensCoffeeRms" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 1.20677966102 + Sweden Building 05K0003 + 1.46100917431 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 2.53105456775 + Sweden Building 05K0007 + 1.08639747349 + Sweden Building 05K0008 + 0.910666666667 + Sweden Building 05K0009 + 2.06390811368 + Sweden Building 05K0010 + 3.29519450801 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 1.54234902764 +

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


101

Property:Building/SPElectrtyUsePercLargeKitchens | Open Energy Information  

Open Energy Info (EERE)

SPElectrtyUsePercLargeKitchens SPElectrtyUsePercLargeKitchens Jump to: navigation, search This is a property of type String. Large kitchens Pages using the property "Building/SPElectrtyUsePercLargeKitchens" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 1.06788610412 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.620003623604 + Sweden Building 05K0005 + 3.89960107186 + Sweden Building 05K0006 + 0.586902877434 + Sweden Building 05K0007 + 5.16783391945 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.520871109218 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.645617768363 + Sweden Building 05K0012 + 0.25093035055 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 +

102

Property:Building/SPElectrtyUsePercSmallKitchensCoffeeRms | Open Energy  

Open Energy Info (EERE)

SPElectrtyUsePercSmallKitchensCoffeeRms SPElectrtyUsePercSmallKitchensCoffeeRms Jump to: navigation, search This is a property of type String. Small kitchens / coffee rooms Pages using the property "Building/SPElectrtyUsePercSmallKitchensCoffeeRms" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 1.08790487679 + Sweden Building 05K0003 + 2.00386372221 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 3.87651698157 + Sweden Building 05K0007 + 1.65760139145 + Sweden Building 05K0008 + 2.18690390846 + Sweden Building 05K0009 + 3.6502647334 + Sweden Building 05K0010 + 2.19286348568 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 2.23856397763 +

103

A Web-based user-oriented tool for universal kitchen design  

E-Print Network (OSTI)

Economic constraints to the professional design practice limit customized solutions to the very wealthy, and thus most of the kitchens in current development housing projects are still generic. With aging baby boomers and ...

Ma, Xiaoyi, 1975-

2002-01-01T23:59:59.000Z

104

Waste-heat disposal from US Geothermal Power Plants: an update  

DOE Green Energy (OSTI)

Some of the more interesting and significant methods that are currently being studied in the US for reducing waste heat dissipation system costs and water consumption are: (1) allowing plant power output to vary with ambient conditions; (2) use of ammonia to transport waste heat from the turbine condenser to air-cooled coils; (3) development of a plastic-membrane type wet/dry tower; (4) marketing of steam turbines that can tolerate a wider range of back pressures: (5) use of circulating water storage to delay heat dissipation until more favorable ambient conditions exist; (6) development of tubes with enhanced heat transfer surfaces to reduce condenser capital costs; and (7) use of evaporative condensers to reduce costs in binary cycles. Many of these projects involve large-scale tests that are now fully installed and producing some preliminary data.

Robertson, R.C.

1982-01-01T23:59:59.000Z

105

Multi-heat source thermodynamic cycles and demonstrations of their power plants  

SciTech Connect

Being on the analysis of the requirements and the problems existing in the thermodynamic cycles (TC) and their power plants (PPs) using single heat source (SHS) of moderate and low grade, the paper puts forward the theory of electricity generation by using multi-heat sources (MHS), its possibility and advantages of these heat sources (HSs). Proposals of two types of MHS combination cycles, such as solar thermal energy (STE) and geothermal energy (GE), solar-geothermal and fuel burning energy (FBE) or waste heat (WH) are given. The calculation results of these PPs and their corresponding SHS-PPs are listed. MHS-PPs are superior from both technical and economic points of view.

Dai-Ji, H.

1984-08-01T23:59:59.000Z

106

Theoretical Design of a Thermosyphon for Efficient Process Heat Removal from Next Generation Nuclear Plant (NGNP) for Production of Hydrogen  

DOE Green Energy (OSTI)

The work reported here is the preliminary analysis of two-phase Thermosyphon heat transfer performance with various alkali metals. Thermosyphon is a device for transporting heat from one point to another with quite extraordinary properties. Heat transport occurs via evaporation and condensation, and the heat transport fluid is re-circulated by gravitational force. With this mode of heat transfer, the thermosyphon has the capability to transport heat at high rates over appreciable distances, virtually isothermally and without any requirement for external pumping devices. For process heat, intermediate heat exchangers (IHX) are required to transfer heat from the NGNP to the hydrogen plant in the most efficient way possible. The production of power at higher efficiency using Brayton Cycle, and hydrogen production requires both heat at higher temperatures (up to 1000oC) and high effectiveness compact heat exchangers to transfer heat to either the power or process cycle. The purpose for selecting a compact heat exchanger is to maximize the heat transfer surface area per volume of heat exchanger; this has the benefit of reducing heat exchanger size and heat losses. The IHX design requirements are governed by the allowable temperature drop between the outlet of the NGNP (900oC, based on the current capabilities of NGNP), and the temperatures in the hydrogen production plant. Spiral Heat Exchangers (SHE’s) have superior heat transfer characteristics, and are less susceptible to fouling. Further, heat losses to surroundings are minimized because of its compact configuration. SHEs have never been examined for phase-change heat transfer applications. The research presented provides useful information for thermosyphon design and Spiral Heat Exchanger.

Piyush Sabharwall; Fred Gunnerson; Akira Tokuhiro; Vivek Utgiker; Kevan Weaver; Steven Sherman

2007-10-01T23:59:59.000Z

107

Evaluation of a sulfur oxide chemical heat storage process for a steam solar electric plant  

DOE Green Energy (OSTI)

The purpose of this study was to develop and evaluate technically feasible process configurations for the use of the sulfur oxide system, 2 SO/sub 3/ reversible 2 SO/sub 2/ + O/sub 2/, in energy storage. The storage system is coupled with a conventional steam-cycle power plant. Heat for both the power plant and the storage system is supplied during sunlit hours by a field of heliostats focussed on a central solar receiver. When sunlight is not available, the storage system supplies the heat to operate the power plant. A technically feasible, relatively efficient configuration is proposed for incorporating this type of energy storage system into a solar power plant. Complete material and energy balances are presented for a base case that represents a middle range of expected operating conditions. Equipment sizes and costs were estimated for the base case to obtain an approximate value for the cost of the electricity that would be produced from such an installation. In addition, the sensitivity of the efficiency of the system to variations in design and operating conditions was determined for the most important parameters and design details. In the base case the solar tower receives heat at a net rate of 230 MW(t) for a period of eight hours. Daytime electricity is about 30 MW(e). Nighttime generation is at a rate of about 15 MW(e) for a period of sixteen hours. The overall efficiency of converting heat into electricity is about 26%. The total capital cost for the base case is estimated at about $68 million, of which about 67% is for the tower and heliostats, 11% is for the daytime power plant, and 22% is for the storage system. The average cost of the electricity produced for the base case is estimated to be about 11 cents/kW(e)-hr.

Dayan, J.; Lynn, S.; Foss, A.

1979-07-01T23:59:59.000Z

108

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

Science Conference Proceedings (OSTI)

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.

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

1986-04-01T23:59:59.000Z

109

Value impact assessment: A preliminary assessment of improvement opportunities at the Quantico Central Heating Plant  

Science Conference Proceedings (OSTI)

This report presents the results of a preliminary assessment of opportunities for improvement at the US Marine Corps (USMC) Quantico, Virginia, Central Heating Plant (CHP). This study is part of a program intended to provide the CHP staff with a computerized Artificial Intelligence (AI) decision support system that will assist in a more efficient, reliable, and safe operation of their plant. As part of the effort to provide the AI decision support system, a team of six scientists and engineers from the Pacific Northwest Laboratory (PNL) visited the plant to characterize the conditions and environment of the CHP. This assessment resulted in a list of potential performance improvement opportunities at the CHP. In this report, 12 of these opportunities are discussed and qualitatively analyzed. 70 refs., 7 figs., 6 tabs.

Brambley, M.R.; Weakley, S.A.

1990-09-01T23:59:59.000Z

110

HTGR-GT closed-cycle gas turbine: a plant concept with inherent cogeneration (power plus heat production) capability  

SciTech Connect

The high-grade sensible heat rejection characteristic of the high-temperature gas-cooled reactor-gas turbine (HTGR-GT) plant is ideally suited to cogeneration. Cogeneration in this nuclear closed-cycle plant could include (1) bottoming Rankine cycle, (2) hot water or process steam production, (3) desalination, and (4) urban and industrial district heating. This paper discusses the HTGR-GT plant thermodynamic cycles, design features, and potential applications for the cogeneration operation modes. This paper concludes that the HTGR-GT plant, which can potentially approach a 50% overall efficiency in a combined cycle mode, can significantly aid national energy goals, particularly resource conservation.

McDonald, C.F.

1980-04-01T23:59:59.000Z

111

Beyond Salad: How to Save Energy in the Kitchen During the Summer |  

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

Beyond Salad: How to Save Energy in the Kitchen During the Summer Beyond Salad: How to Save Energy in the Kitchen During the Summer Beyond Salad: How to Save Energy in the Kitchen During the Summer August 16, 2010 - 10:51am Addthis Andrea Spikes Communicator at DOE's National Renewable Energy Laboratory One day I ordered pizza delivery. Another day, I went out to eat (well, several days actually). Yet another day found me trolling the produce and canned veggie & fruit aisles of the supermarket to assemble an interesting salad. But sooner or later, I want to cook food: real food, in my home, made from scratch, using natural ingredients the way I prefer. Even when it's blistering hot outside, sometimes I still crave a good hot meal. But what's a home cook to do when you finally get tired of grilling but loathe the idea of turning on the oven? Well, there are some simple,

112

How to Be Energy Efficient in Your Kitchen this Thanksgiving | Department  

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

How to Be Energy Efficient in Your Kitchen this Thanksgiving How to Be Energy Efficient in Your Kitchen this Thanksgiving How to Be Energy Efficient in Your Kitchen this Thanksgiving November 23, 2011 - 11:41am Addthis This holiday season, we wanted to share some easy ways to reduce unnecessary energy use while still enjoying all of your family’s favorite dishes. | Image courtesy of Flickr user Jennuine Captures. This holiday season, we wanted to share some easy ways to reduce unnecessary energy use while still enjoying all of your family's favorite dishes. | Image courtesy of Flickr user Jennuine Captures. Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs Many of us will be thankful for a delicious home cooked dinner this Thursday. But did you know that cooking accounts for 4.5% of total energy

113

How to Be Energy Efficient in Your Kitchen this Thanksgiving | Department  

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

to Be Energy Efficient in Your Kitchen this Thanksgiving to Be Energy Efficient in Your Kitchen this Thanksgiving How to Be Energy Efficient in Your Kitchen this Thanksgiving November 23, 2011 - 11:41am Addthis This holiday season, we wanted to share some easy ways to reduce unnecessary energy use while still enjoying all of your family’s favorite dishes. | Image courtesy of Flickr user Jennuine Captures. This holiday season, we wanted to share some easy ways to reduce unnecessary energy use while still enjoying all of your family's favorite dishes. | Image courtesy of Flickr user Jennuine Captures. Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs Many of us will be thankful for a delicious home cooked dinner this Thursday. But did you know that cooking accounts for 4.5% of total energy

114

Techno-economic analysis of using corn stover to supply heat and power to a corn ethanol plant - Part 2: Cost of heat and power generation systems  

Science Conference Proceedings (OSTI)

This paper presents a techno-economic analysis of corn stover fired process heating (PH) and the combined heat and power (CHP) generation systems for a typical corn ethanol plant (ethanol production capacity of 170 dam3). Discounted cash flow method was used to estimate both the capital and operating costs of each system and compared with the existing natural gas fired heating system. Environmental impact assessment of using corn stover, coal and natural gas in the heat and/or power generation systems was also evaluated. Coal fired process heating (PH) system had the lowest annual operating cost due to the low fuel cost, but had the highest environmental and human toxicity impacts. The proposed combined heat and power (CHP) generation system required about 137 Gg of corn stover to generate 9.5 MW of electricity and 52.3 MW of process heat with an overall CHP efficiency of 83.3%. Stover fired CHP system would generate an annual savings of 3.6 M$ with an payback period of 6 y. Economics of the coal fired CHP system was very attractive compared to the stover fired CHP system due to lower fuel cost. But the greenhouse gas emissions per Mg of fuel for the coal fired CHP system was 32 times higher than that of stover fired CHP system. Corn stover fired heat and power generation system for a corn ethanol plant can improve the net energy balance and add environmental benefits to the corn to ethanol biorefinery.

Mani, Sudhagar [University of Georgia; Sokhansanj, Shahabaddine [ORNL; Togore, Sam [U.S. Department of Energy; Turhollow Jr, Anthony F [ORNL

2010-03-01T23:59:59.000Z

115

Proceedings: Fifth EPRI Balance-of-Plant Heat Exchanger NDE Symposium  

Science Conference Proceedings (OSTI)

This publication is a compilation of the agenda and material presented at the Fifth EPRI Steam Balance-of-Plant Heat Exchanger NDE Symposium which was held on June 15-17, 1997 at Lake Tahoe, Nevada. Along with the proceedings of the symposium, an attendance list is included in this document. The topics that are presented in the symposium are included in this publication in a Plenary Session and Sessions 1, 2, 3 and 4. An overview of the American Society for Nondestructive Testing (ASNT) Central Certification Program is presented in the Plenary Session. The following is a sampling of titles presented in the other sessions: An Engineer's Guide to Eddy Current Testing; ID Pit Sizing in a Carbon Steel Tubed Fuel Oil Storage Transfer Heater; Pilgrim Feedwater Heater Tube Repair; Through the Tube Plugging Application for Once Through Heat Exchangers; PFEC Inspection Method for Detection and Sizing of Uniform Wall Thinning; Some Characteristics of Pulsed Eddy Current Technique in Ferromagnetic Heat Exchanger Tubing; Utility Perspective on PC Based Database Management and Analysis Software; and NDE Demonstration and Inspection of Ginna Power Plant Moisture Separator Finned Tubing.

None

1998-10-01T23:59:59.000Z

116

Organic Rankine Cycle Systems for Waste Heat Recovery in Refineries and Chemical Process Plants  

E-Print Network (OSTI)

The design of a low temperature Rankine cycle system using R-113 working fluid for recovery and conversion of process waste heat is described for typical applications in oil refineries and chemical plants. The system is designed to produce electric power from waste heat available in a temperature range from 180oF to 400oF. The design of a new ORC turbo generator uniquely adapted to applications of this type is presented. The unit has been designed for power outputs from 3/4 to 2 1/2 MW and turbine inlet temperatures from 170 to 260oF. The machine design has eliminated the need for shaft seals, shaft couplings and the usual lube oil console normally required for turbine-generator units. Results of prototype tests of a 1 MW unit are presented. A product package and recommended division of responsibilities between purchaser, A&E company and supplier is presented for installations in refineries and process plants. The product package covers the electrical power range from 3/4 to 5 MW and waste heat streams from 20 to 130 million BTU/hr.

Meacher, J. S.

1981-01-01T23:59:59.000Z

117

The Evaluation of the Heat Loading from Steady, Transient, and Off-Normal Conditions in ARIES Power Plants  

Science Conference Proceedings (OSTI)

The heat loading on plasma facing components (PFCs) provides a critical limitation for design and operation of the first wall, divertor, and other special components. Power plants will have high power entering the scrape-off layer and transporting to the first wall and divertor. Although the design for steady heat loads is understood, the approach for transient and offnormal loading is not. The characterization of heat loads developed for ITER1 can be applied to power plants to better develop the operating space of viable solutions and point to research focus areas.

C.E. Kessel, M.S. Tillack and J. Blanchard

2012-09-07T23:59:59.000Z

118

Optimal Scheduling of Industrial Combined Heat and Power Plants under Time-sensitive Electricity Prices  

E-Print Network (OSTI)

Combined heat and power (CHP) plants are widely used in industrial applications. In the aftermath of the recession, many of the associated production processes are under-utilized, which challenges the competitiveness of chemical companies. However, under-utilization can be a chance for tighter interaction with the power grid, which is in transition to the so-called smart grid, if the CHP plant can dynamically react to time-sensitive electricity prices. In this paper, we describe a generalized mode model on a component basis that addresses the operational optimization of industrial CHP plants. The mode formulation tracks the state of each plant component in a detailed manner and can account for different operating modes, e.g. fuel-switching for boilers and supplementary firing for gas turbines, and transitional behavior. Transitional behavior such as warm and cold start-ups, shutdowns and pre-computed start-up trajectories is modeled with modes as well. The feasible region of operation for each component is described based on input-output relationships that are thermodynamically sound, such as the Willans line for steam turbines. Furthermore, we emphasize the use of mathematically efficient logic constraints that allow solving the large-scale models fast. We provide an industrial case study and study the impact of different scenarios for under-utilization. 1

Sumit Mitra; Ignacioe. Grossmann

2012-01-01T23:59:59.000Z

119

Systematic method for the condition assessment of central heating plants in Air Force Logistics Command. Master's thesis  

Science Conference Proceedings (OSTI)

Air Force Logistics Command (AFLC), facing decreasing funds and aging utility systems, needed a method to objectively rate its central heating plants. Such a rating system would be used to compare heating plants throughout the command to identify potential problem areas and prioritize major repair projects. This thesis used a Delphi questionnaire to gather opinions from heating plant experts in order to identify and prioritize components considered most critical to overall plant operation. In addition, the experts suggested measurements which could be used to evaluate component conditions. By combining expert opinions and reading from technical literature, component model rating schemes were developed for AFLC's steam and high temperature hot water plants. Based on measurements and observations of critical components in the plant, a score between 0 and 100 is assigned to each component (for example, condensate piping, deaerator, etc.), each plant subsystem (distribution system, water treatment system, etc.), and to the plant as a whole. These component model rating schemes and the resultant overall condition index scores will enable AFLC to focus their management attention and allocate needed resources to the plants in greatest need of repair.

Starmack, G.J.

1990-09-01T23:59:59.000Z

120

There's a monster in my kitchen: using aversive feedback to motivate behaviour change  

Science Conference Proceedings (OSTI)

In this paper we argue that "persuasive technologies," developed to motivate behaviour change in users, have so far failed to exploit the established body of empirical research within behavioural science. We propose that persuasive technologies may benefit ... Keywords: behavioural psychology, connected kitchens, environmental awareness, negative reinforcement, persuasive technology

Ben Kirman; Conor Linehan; Shaun Lawson; Derek Foster; Mark Doughty

2010-04-01T23:59:59.000Z

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


121

High Solid Anaerobic Co-digestion Pilot Scale Experiment of Kitchen Waste and Cow-dung  

Science Conference Proceedings (OSTI)

Under mesophilic condition (37°C), a bench-scale experiment based on high solid anaerobic digestion process was conducted in a fed-batch single phase reactor. The result shows: (1) According to gas production and ph value change, there are mainly ... Keywords: Kitchen waste, Cow-dung, High solid, Anaerobic co-digestion, Pilotsate

Lei Feng; Yan Chen; Rundong Li; Jie Xu

2012-05-01T23:59:59.000Z

122

Proceedings of Healthy Buildings 2009 Paper 206 Risk assessment of biogas exposure in kitchens  

E-Print Network (OSTI)

Proceedings of Healthy Buildings 2009 Paper 206 Risk assessment of biogas exposure in kitchens C to pollutants while using biogas for cooking was assessed following the methodology described by the US - National Research Council. Information of hazardous compounds and compositions of several biogas types were

Paris-Sud XI, Université de

123

Commercial Kitchen Ventilation Performance Report: Gas Underfired Broiler Under Wall-Mounted Canopy Hood  

Science Conference Proceedings (OSTI)

This report documents testing of ventilation requirements for a gas underfired broiler under a wall-mounted canopy hood. This appliance and hood combination is one of a series undertaken to provide electric utilities and the foodservice industry with data to optimize the design of commercial kitchen ventilation systems and integrate exhaust requirements with space conditioning design.

1997-11-14T23:59:59.000Z

124

Commercial Kitchen Ventilation Performance Report: Two Gas Pressure Fryers Under Wall-Mounted Canopy Hood  

Science Conference Proceedings (OSTI)

This report documents testing of ventilation requirements two gas pressure fryers under a wall-mounted canopy hood. This appliance and hood combination is one of a series undertaken to provide electric utilities and the foodservice industry with data to optimize the design of commercial kitchen ventilation systems and integrate exhaust requirements with space conditioning design.

1997-10-31T23:59:59.000Z

125

Commercial Kitchen Ventilation Performance Report: Electric Combination Oven Under Wall-Mounted Canopy Hood  

Science Conference Proceedings (OSTI)

This report documents testing of ventilation requirements for an electric combination oven under an exhaust-only canopy hood. This appliance and hood combination is one of a series undertaken to provide electric utilities and the foodservice industry with data to optimize the design of commercial kitchen ventilation systems and integrate exhaust requirements with space conditioning design.

1997-11-14T23:59:59.000Z

126

Commercial Kitchen Ventilation Performance Report: Electric Underfired Broiler Under Wall-Mounted Canopy Hood  

Science Conference Proceedings (OSTI)

This report documents testing of ventilation requirements for a three-foot electric underfired broiler positioned under an exhaust-only canopy hood. This appliance and hood combination is one of a series undertaken to provide electric utilities and the foodservice industry with data to optimize the design of commercial kitchen ventilation systems and integrate exhaust requirements with space conditioning design.

1997-05-13T23:59:59.000Z

127

Commercial Kitchen Ventilation Performance Report: Two Electric Pressure Fryers Under Wall-Mounted Canopy Hood  

Science Conference Proceedings (OSTI)

This report documents testing of ventilation requirements for two electric pressure fryers under a wall-mounted canopy hood. This appliance and hood combination is one of a series undertaken to provide electric utilities and the foodservice industry with data to optimize the design of commercial kitchen ventilation systems and integrate exhaust requirements with space conditioning design.

1997-09-17T23:59:59.000Z

128

Commercial Kitchen Ventilation Performance Report: Gas Combination Oven Under Wall-Mounted Canopy Hood  

Science Conference Proceedings (OSTI)

This report documents testing of ventilation requirements for a gas combination oven under an exhaust-only canopy hood. This appliance and hood combination is one of a series undertaken to provide electric utilities and the foodservice industry with data to optimize the design of commercial kitchen ventilation systems and integrate exhaust requirements with space conditioning design.

1997-11-14T23:59:59.000Z

129

Proposal for the Award of a Contract for the Supply and Installation of a gas Turbine for Combined Generation of Electricity and Heat in the Heating Plant on the Meyrin Site  

E-Print Network (OSTI)

Proposal for the Award of a Contract for the Supply and Installation of a gas Turbine for Combined Generation of Electricity and Heat in the Heating Plant on the Meyrin Site

1994-01-01T23:59:59.000Z

130

Experiments to investigate direct containment heating phenomena with scaled models of the Surry Nuclear Power Plant  

DOE Green Energy (OSTI)

The Containment Technology Test Facility (CTTF) and the Surtsey Test Facility at Sandia National Laboratories are used to perform scaled experiments that simulate High Pressure Melt Ejection accidents in a nuclear power plant (NPP). These experiments are designed to investigate the effects of direct containment heating (DCH) phenomena on the containment load. High-temperature, chemically reactive melt (thermite) is ejected by high-pressure steam into a scale model of a reactor cavity. Debris is entrained by the steam blowdown into a containment model where specific phenomena, such as the effect of subcompartment structures, prototypic air/steam/hydrogen atmospheres, and hydrogen generation and combustion, can be studied. Four Integral Effects Tests (IETs) have been performed with scale models of the Surry NPP to investigate DCH phenomena. The 1/61{sup th} scale Integral Effects Tests (IET-9, IET-10, and IET-11) were conducted in CTRF, which is a 1/6{sup th} scale model of the Surry reactor containment building (RCB). The 1/10{sup th} scale IET test (IET-12) was performed in the Surtsey vessel, which had been configured as a 1/10{sup th} scale Surry RCB. Scale models were constructed in each of the facilities of the Surry structures, including the reactor pressure vessel, reactor support skirt, control rod drive missile shield, biological shield wall, cavity, instrument tunnel, residual heat removal platform and heat exchangers, seal table room and seal table, operating deck, and crane wall. This report describes these experiments and gives the results.

Blanchat, T.K.; Allen, M.D.; Pilch, M.M. [Sandia National Labs., Albuquerque, NM (United States); Nichols, R.T. [Ktech Corp., Albuquerque, NM (United States)

1994-06-01T23:59:59.000Z

131

Modular pebble-bed reactor reforming plant design for process heat  

Science Conference Proceedings (OSTI)

This report describes a preliminary design study of a Modular Pebble-Bed Reactor System Reforming (MPB-R) Plant. The system uses one pressure vessel for the reactor and a second pressure vessel for the components, i.e., reformer, steam generator and coolant circulator. The two vessels are connected by coaxial pipes in an arrangement known as the side-by-side (SBS). The goal of the study is to gain an understanding of this particular system and to identify any technical issues that must be resolved for its application to a modular reformer plant. The basic conditions for the MPB-R were selected in common with those of the current study of the MRS-R in-line prismatic fuel concept, specifically, the module core power of 250 MWt, average core power density of 4.1 w/cc, low enriched uranium (LEU) fuel with a /sup 235/U content of 20% homogeneously mixed with thorium, and a target burnup of 80,000 MWD/MT. Study results include the pebble-bed core neutronics and thermal-hydraulic calculations. Core characteristics for both the once-through-then-out (OTTO) and recirculation of fuel sphere refueling schemes were developed. The plant heat balance was calculated with 55% of core power allotted to the reformer.

Lutz, D.E.; Cowan, C.L.; Davis, C.R.; El Sheikh, K.A.; Hui, M.M.; Lipps, A.J.; Wu, T.

1982-09-01T23:59:59.000Z

132

Comparison of heat pump system and boiler plant for one-family house : Heat sources in one-family house.  

E-Print Network (OSTI)

??The aim of this work is to look through, compare and choose the cheapest heat source for typical new Finnish one-family house. We will speak… (more)

Kaydalova, Natalia

2010-01-01T23:59:59.000Z

133

Proposal to Negotiate, without Competitive Tendering, a Contract for the Supply of Natural Gas for the Heating Plant on the Meyrin Site  

E-Print Network (OSTI)

Proposal to Negotiate, without Competitive Tendering, a Contract for the Supply of Natural Gas for the Heating Plant on the Meyrin Site

1992-01-01T23:59:59.000Z

134

Proposal to Negotiate, without competitive tendering, the renewal of hte contract for hte supply of natural gas for the heating plant on the Prévessin Site  

E-Print Network (OSTI)

Proposal to Negotiate, without competitive tendering, the renewal of hte contract for hte supply of natural gas for the heating plant on the Prévessin Site

1994-01-01T23:59:59.000Z

135

Nexant Parabolic Trough Solar Power Plant Systems Analysis; Task 2: Comparison of Wet and Dry Rankine Cycle Heat Rejection, 20 January 2005 - 31 December 2005  

DOE Green Energy (OSTI)

Subcontract report by Nexant, Inc., regarding a system analysis comparing solar parabolic trough plants with wet and dry rankine cycle heat rejection.

Kelly, B.

2006-07-01T23:59:59.000Z

136

Balance-of-plant options for the Heat-Pipe Power System  

DOE Green Energy (OSTI)

The Heat-Pipe Power System (HPS) is a near-term, low-cost space fission power system with the potential for utilizing various option for balance-of-plant options. The following options have been studied: a low-power thermoelectric design (14-kWe output), a small Brayton cycle system (60--75 kWe), and a large Brayton cycle system (250 kWe). These systems were analyzed on a preliminary basis, including mass, volume, and structure calculations. These analyses have shown that the HPS system can provide power outputs from 10--250 kWe with specific powers of {approximately} 14 W/kg for a 14-kWe model to {approximately} 100 W/kg for a 250-kWe model. The system designs considered in this study utilize a common component base to permit easy expansion and development.

Berte, M. [Massachusetts Inst. of Tech., Cambridge, MA (United States). Nuclear Engineering Dept.; Capell, B. [Michigan Univ., Ann Arbor, MI (United States). Nuclear Engineering Dept.

1997-09-01T23:59:59.000Z

137

Using Remote Control Systems for the Re-Commissioning of Heating Plants of School Building  

E-Print Network (OSTI)

The objective of this work is to develop a semi-automatic commissioning tool that can be implemented in Remote Control Systems to help building operators test the performance of heating plants in school buildings. The work was carried out with the city of Paris and the tool was adapted to the requirements of end-users who are operating more than 700 schools. This semi-automatic commissioning tool could help to reduce costs and time for commissioning tasks of a large number of buildings. It also helps to improve the commissioning process, to have a whole building functional testing approach and make the commissioning procedure available for different users with different skills. This work was carried out as part of an IEA Annex 40 research project, an international research group focused on energy saving technologies and activities that support their application in practice.

Vaezi-Nejad, H.; Detaille, C.; Jandon, M.; Bruyat, F.

2004-01-01T23:59:59.000Z

138

Next Generation Nuclear Plant Intermediate Heat Exchanger Materials Research and Development Plan (PLN-2804)  

Science Conference Proceedings (OSTI)

DOE has selected the High Temperature Gas-cooled Reactor (HTGR) design for the Next Generation Nuclear Plant (NGNP) Project. The NGNP will demonstrate the use of nuclear power for electricity and hydrogen production. It will have an outlet gas temperature in the range of 900°C and a plant design service life of 60 years. The reactor design will be a graphite moderated, helium-cooled, prismatic or pebble-bed reactor and use low-enriched uranium, Tri-Isotopic (TRISO)-coated fuel. The plant size, reactor thermal power, and core configuration will ensure passive decay heat removal without fuel damage or radioactive material releases during accidents. The NGNP Materials Research and Development (R&D) Program is responsible for performing R&D on likely NGNP materials in support of the NGNP design, licensing, and construction activities. Today’s high-temperature alloys and associated ASME Codes for reactor applications are approved up to 760°C. However, some primary system components, such as the Intermediate Heat Exchanger (IHX) for the NGNP will require use of materials that can withstand higher temperatures. The thermal, environmental, and service life conditions of the NGNP will make selection and qualification of some high-temperature materials a significant challenge. Examples include materials for the core barrel and core internals, such as the control rod sleeves. The requirements of the materials for the IHX are among the most demanding. Selection of the technology and design configuration for the NGNP must consider both the cost and risk profiles to ensure that the demonstration plant establishes a sound foundation for future commercial deployments. The NGNP challenge is to achieve a significant advancement in nuclear technology while at the same time setting the stage for an economically viable deployment of the new technology in the commercial sector soon after 2020. A number of solid solution strengthened nickel based alloys have been considered for application in heat exchangers and core internals for the NGNP. The primary candidates are Inconel 617, Haynes 230, Incoloy 800H and Hastelloy XR. Based on the technical maturity, availability in required product forms, experience base, and high temperature mechanical properties all of the vendor pre-conceptual design studies have specified Alloy 617 as the material of choice for heat exchangers. Also a draft code case for Alloy 617 was developed previously. Although action was suspended before the code case was accepted by ASME, this draft code case provides a significant head start for achieving codification of the material. Similarly, Alloy 800H is the material of choice for control rod sleeves. In addition to the above listed considerations, Alloy 800H is already listed in the nuclear section of the ASME Code; although the maximum use temperature and time need to be increased.

J. K. Wright

2008-04-01T23:59:59.000Z

139

Preliminary issues associated with the next generation nuclear plant intermediate heat exchanger design.  

SciTech Connect

The Next Generation Nuclear Plant (NGNP), which is an advanced high temperature gas reactor (HTGR) concept with emphasis on production of both electricity and hydrogen, involves helium as the coolant and a closed-cycle gas turbine for power generation with a core outlet/gas turbine inlet temperature of 900-1000 C. In the indirect cycle system, an intermediate heat exchanger is used to transfer the heat from primary helium from the core to the secondary fluid, which can be helium, nitrogen/helium mixture, or a molten salt. The system concept for the vary high temperature reactor (VHTR) can be a reactor based on the prismatic block of the GT-MHR developed by a consortium led by General Atomics in the U.S. or based on the PBMR design developed by ESKOM of South Africa and British Nuclear Fuels of U.K. This report has made a preliminary assessment on the issues pertaining to the intermediate heat exchanger (IHX) for the NGNP. Two IHX designs namely, shell and tube and compact heat exchangers were considered in the assessment. Printed circuit heat exchanger, among various compact heat exchanger (HX) designs, was selected for the analysis. Irrespective of the design, the material considerations for the construction of the HX are essentially similar, except may be in the fabrication of the units. As a result, we have reviewed in detail the available information on material property data relevant for the construction of HX and made a preliminary assessment of several relevant factors to make a judicious selection of the material for the IHX. The assessment included four primary candidate alloys namely, Alloy 617 (UNS N06617), Alloy 230 (UNS N06230), Alloy 800H (UNS N08810), and Alloy X (UNS N06002) for the IHX. Some of the factors addressed in this report are the tensile, creep, fatigue, creep fatigue, toughness properties for the candidate alloys, thermal aging effects on the mechanical properties, American Society of Mechanical Engineers (ASME) Code compliance information, and performance of the alloys in helium containing a wide range of impurity concentrations. A detailed thermal hydraulic analysis, using a model developed at ANL, was performed to calculate heat transfer, temperature distribution, and pressure drop inside both printed circuit and shell-and-tube heat exchangers. The analysis included evaluation of the role of key process parameters, geometrical factors in HX designs, and material properties. Calculations were performed for helium-to-helium, helium-to-helium/nitrogen, and helium-to-salt HXs. The IHX being a high temperature component, probably needs to be designed using ASME Code Section III, Subsection NH, assuming that the IHX will be classified as a class 1 component. With input from thermal hydraulic calculations performed at ANL, thermal conduction and stress analyses for both compact and shell-and-tube HXs were performed.

Natesan, K.; Moisseytsev, A.; Majumdar, S.; Shankar, P. S.; Nuclear Engineering Division

2007-04-05T23:59:59.000Z

140

Repowering Fossil Steam Plants with Gas Turbines and Heat Recovery Steam Generators: Design Considerations, Economics, and Lessons L earned  

Science Conference Proceedings (OSTI)

This report describes repowering fossil steam plants using gas turbines (GTs) and heat recovery steam generators (HRSGs) in combined-cycle mode. Design considerations and guidance, comparative economics, and lessons learned in the development of such projects are included. Various other methods of fossil plant repowering with GTs are also briefly discussed. The detailed results and comparisons that are provided relate specifically to a generic GT/HRSG repowering. Design parameters, limitations, schedulin...

2012-08-08T23:59:59.000Z

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141

EVALUATION OF A SULFUR OXIDE CHEMICAL HEAT STORAGE PROCESS FOR A STEAM SOLAR ELECTRIC PLANT  

E-Print Network (OSTI)

10. The Parallel Power Plant. III. NIGHTTIME OPERATION: A.~. W. , "Dry Cooling Tower Power Plant Design SpecificationsSUMMARY OF COSTS 1. Entire Power Plant--Storage System. · ·

Dayan, J.

2011-01-01T23:59:59.000Z

142

EVALUATION OF A SULFUR OXIDE CHEMICAL HEAT STORAGE PROCESS FOR A STEAM SOLAR ELECTRIC PLANT  

E-Print Network (OSTI)

1. The Receiver .. Heat Exchanger 1 . 3. The Condensers .Reactors. LTR Heat Exchangers Electricity Generating Systemu.rJO u .. OU t. :ovO DoD HEAT EXCHANGERS LOAD (KW'? RECUP =

Dayan, J.

2011-01-01T23:59:59.000Z

143

Return temperature influence of a district heating network on the CHP plant production costs.  

E-Print Network (OSTI)

?? The aim of this Project is to study the influence of high return temperatures in district heating on the costs for heat and power… (more)

Sallent, Roger

2009-01-01T23:59:59.000Z

144

EVALUATION OF A SULFUR OXIDE CHEMICAL HEAT STORAGE PROCESS FOR A STEAM SOLAR ELECTRIC PLANT  

E-Print Network (OSTI)

Exchanger 1 . 3. The Condensers . Reboiler . . . . BoilerNet Power Waste Heat Trimmer Dist. Condenser Turbine SteamLeaks LP Turbine Condenser Misc. Heat Losses Total Waste

Dayan, J.

2011-01-01T23:59:59.000Z

145

Feasibility of geothermal heat use in the San Bernardino Municipal Wastewater Treatment Plant. Final report, September 1980-June 1981  

DOE Green Energy (OSTI)

The results of the feasibility study for utilizing low temperature geothermal heat in the City of San Bernardino Wastewater Treatment Plant are summarized. The study is presented in terms of preliminary engineering design, economic analysis, institutional issues, environmental impacts, resource development, and system implementation.

Racine, W.C.; Larson, T.C.; Stewart, C.A.; Wessel, H.B.

1981-06-01T23:59:59.000Z

146

Next Generation Nuclear Plant Phenomena Identification and Ranking Tables (PIRTs) Volume 6: Process Heat and Hydrogen Co-Generation PIRTs  

DOE Green Energy (OSTI)

A Phenomena Identification and Ranking Table (PIRT) exercise was conducted to identify potential safety-0-related physical phenomena for the Next Generation Nuclear Plant (NGNP) when coupled to a hydrogen production or similar chemical plant. The NGNP is a very high-temperature reactor (VHTR) with the design goal to produce high-temperature heat and electricity for nearby chemical plants. Because high-temperature heat can only be transported limited distances, the two plants will be close to each other. One of the primary applications for the VHTR would be to supply heat and electricity for the production of hydrogen. There was no assessment of chemical plant safety challenges. The primary application of this PIRT is to support the safety analysis of the NGNP coupled one or more small hydrogen production pilot plants. However, the chemical plant processes to be coupled to the NGNP have not yet been chosen; thus, a broad PIRT assessment was conducted to scope alternative potential applications and test facilities associated with the NGNP. The hazards associated with various chemicals and methods to minimize risks from those hazards are well understood within the chemical industry. Much but not all of the information required to assure safe conditions (separation distance, relative elevation, berms) is known for a reactor coupled to a chemical plant. There is also some experience with nuclear plants in several countries that have produced steam for industrial applications. The specific characteristics of the chemical plant, site layout, and the maximum stored inventories of chemicals can provide the starting point for the safety assessments. While the panel identified events and phenomena of safety significance, there is one added caveat. Multiple high-temperature reactors provide safety-related experience and understanding of reactor safety. In contrast, there have been only limited safety studies of coupled chemical and nuclear plants. The work herein provides a starting point for those studies; but, the general level of understanding of safety in coupling nuclear and chemical plants is less than in other areas of high-temperature reactor safety.

Forsberg, Charles W [ORNL; Gorensek, M. B. [Savannah River National Laboratory (SRNL); Herring, S. [Idaho National Laboratory (INL); Pickard, P. [Sandia National Laboratories (SNL)

2008-03-01T23:59:59.000Z

147

Cost benefits from applying advanced heat rejection concepts to a wet/dry-cooled binary geothermal plant  

SciTech Connect

Optimized ammonia heat rejection system designs were carried out for three water allocations equivalent to 9, 20, and 31% of that of a 100% wet-cooled plant. The Holt/Procon design of a 50-MWe binary geothermal plant for the Heber site was used as a design basis. The optimization process took into account the penalties for replacement power, gas turbine capital, and lost capacity due to increased heat rejection temperature, as well as added base plant capacity and fuel to provide fan and pump power to the heat rejection system. Descriptions of the three plant designs are presented. For comparison, a wet tower loop was costed out for a 100% wet-cooled plant using the parameters of the Holt/Procon design. Wet/dry cooling was found to increase the cost of electricity by 28% above that of a 100% wet-cooled plant for all three of the water allocations studied (9, 20, and 31%). The application selected for a preconceptual evaluation of the BCT (binary cooling tower) system was the use of agricultural waste water from the New River, located in California's Imperial Valley, to cool a 50-MWe binary geothermal plant. Technical and cost evaluations at the preconceptual level indicated that performance estimates provided by Tower Systems Incorporated (TSI) were reasonable and that TSI's tower cost, although 2 to 19% lower than PNL estimates, was also reasonable. Electrical cost comparisonswere made among the BCT system, a conventional 100% wet system, and a 9% wet/dry ammonia system, all using agricultural waste water with solar pond disposal. The BCT system cost the least, yielding a cost of electricity only 13% above that of a conventional wet system using high quality water and 14% less than either the conventional 100% wet or the 9% wet/dry ammonia system.

Faletti, D.W.

1981-03-01T23:59:59.000Z

148

Cost benefits from applying advanced heat rejection concepts to a wet/dry-cooled binary geothermal plant  

DOE Green Energy (OSTI)

Optimized ammonia heat rejection system designs were carried out for three water allocations equivalent to 9, 20, and 31% of that of a 100% wet-cooled plant. The Holt/Procon design of a 50-MWe binary geothermal plant for the Heber site was used as a design basis. The optimization process took into account the penalties for replacement power, gas turbine capital, and lost capacity due to increased heat rejection temperature, as well as added base plant capacity and fuel to provide fan and pump power to the heat rejection system. Descriptions of the three plant designs are presented. For comparison, a wet tower loop was costed out for a 100% wet-cooled plant using the parameters of the Holt/Procon design. Wet/dry cooling was found to increase the cost of electricity by 28% above that of a 100% wet-cooled plant for all three of the water allocations studied (9, 20, and 31%). The application selected for a preconceptual evaluation of the BCT (binary cooling tower) system was the use of agricultural waste water from the New River, located in California's Imperial Valley, to cool a 50-MWe binary geothermal plant. Technical and cost evaluations at the preconceptual level indicated that performance estimates provided by Tower Systems Incorporated (TSI) were reasonable and that TSI's tower cost, although 2 to 19% lower than PNL estimates, was also reasonable. Electrical cost comparisonswere made among the BCT system, a conventional 100% wet system, and a 9% wet/dry ammonia system, all using agricultural waste water with solar pond disposal. The BCT system cost the least, yielding a cost of electricity only 13% above that of a conventional wet system using high quality water and 14% less than either the conventional 100% wet or the 9% wet/dry ammonia system.

Faletti, D.W.

1981-03-01T23:59:59.000Z

149

Modeling a Printed Circuit Heat Exchanger with RELAP5-3D for the Next Generation Nuclear Plant  

Science Conference Proceedings (OSTI)

The main purpose of this report is to design a printed circuit heat exchanger (PCHE) for the Next Generation Nuclear Plant and carry out Loss of Coolant Accident (LOCA) simulation using RELAP5-3D. Helium was chosen as the coolant in the primary and secondary sides of the heat exchanger. The design of PCHE is critical for the LOCA simulations. For purposes of simplicity, a straight channel configuration was assumed. A parallel intermediate heat exchanger configuration was assumed for the RELAP5 model design. The RELAP5 modeling also required the semicircular channels in the heat exchanger to be mapped to rectangular channels. The initial RELAP5 run outputs steady state conditions which were then compared to the heat exchanger performance theory to ensure accurate design is being simulated. An exponential loss of pressure transient was simulated. This LOCA describes a loss of coolant pressure in the primary side over a 20 second time period. The results for the simulation indicate that heat is initially transferred from the primary loop to the secondary loop, but after the loss of pressure occurs, heat transfers from the secondary loop to the primary loop.

Not Available

2010-12-01T23:59:59.000Z

150

EVALUATION OF A SULFUR OXIDE CHEMICAL HEAT STORAGE PROCESS FOR A STEAM SOLAR ELECTRIC PLANT  

E-Print Network (OSTI)

8PR = Rate of thermal input to power plant receiver (MWt)the solar thermal inputs to the daytime power plant and theof solar thermal inputs to the daytime power plant and the

Dayan, J.

2011-01-01T23:59:59.000Z

151

EVALUATION OF A SULFUR OXIDE CHEMICAL HEAT STORAGE PROCESS FOR A STEAM SOLAR ELECTRIC PLANT  

E-Print Network (OSTI)

storage is essential if solar power plants are ever tostorage system into a solar power plant. Complete materialdaytime-only steam-cycle solar power plant, then about two-

Dayan, J.

2011-01-01T23:59:59.000Z

152

Field performance of a nephelometer in rural kitchens: effects of high humidity excursions and correlations to gravimetric analyses (Journal of Exposure Science and Environmental Epidemiology 2006)  

E-Print Network (OSTI)

for household energy in rural China: assessment from threeis particularly problematic for rural exposure assessmentparticle concentrations in rural Chinese kitchens for which

Fischer, Susan L; Koshland, Catherine P.

2006-01-01T23:59:59.000Z

153

Mitigation of direct containment heating and hydrogen combustion events in ice condenser plants  

DOE Green Energy (OSTI)

Using Sequoyah as a representative plant, calculations have been performed with a developmental version of the CONTAIN computer code to assess the effectiveness of various possible improvements to ice condenser containments in mitigating severe accident scenarios involving direct containment heating (DCH) and/or hydrogen combustion. Mitigation strategies considered included backup power for igniters and/or air return fans, augmented igniter systems, containment venting, containment inerting, subatmospheric containment operation, reduced ice condenser bypass, and primary system depressurization. Various combinations of these improvements were also considered. Only inerting the containment or primary system depressurization combined with backup power supplies for the igniter systems resulted in large decreases in the peak pressures calculated to result from DCH events. Potential hydrogen detonation threats were also assessed; providing backup power for both the igniter systems and the air return fans would significantly reduce the potential for detonations but might not totally eliminate it. Sensitivity studies using the NUREG-1150 PRA methodology indicated that primary system depressurization combined with backup power for both igniters and fans could reduce the contribution to the mean risk potential of the class of events considered by about a factor of three. 7 refs., 6 figs., 6 tabs.

Williams, D.C.; Gregory, J.J. (Sandia National Labs., Albuquerque, NM (USA))

1990-10-01T23:59:59.000Z

154

Dependable Hydrogen and Industrial Heat Generation from the Next Generation Nuclear Plant  

DOE Green Energy (OSTI)

The Department of Energy is working with industry to develop a next generation, high-temperature gas-cooled nuclear reactor (HTGR) as a part of the effort to supply the US with abundant, clean and secure energy. The Next Generation Nuclear Plant (NGNP) project, led by the Idaho National Laboratory, will demonstrate the ability of the HTGR to generate hydrogen, electricity, and high-quality process heat for a wide range of industrial applications. Substituting HTGR power for traditional fossil fuel resources reduces the cost and supply vulnerability of natural gas and oil, and reduces or eliminates greenhouse gas emissions. As authorized by the Energy Policy Act of 2005, industry leaders are developing designs for the construction of a commercial prototype producing up to 600 MWt of power by 2021. This paper describes a variety of critical applications that are appropriate for the HTGR with an emphasis placed on applications requiring a clean and reliable source of hydrogen. An overview of the NGNP project status and its significant technology development efforts are also presented.

Charles V. Park; Michael W. Patterson; Vincent C. Maio; Piyush Sabharwall

2009-03-01T23:59:59.000Z

155

Results of heat tests of the TGE-435 main boiler in the PGU-190/220 combined-cycle plant of the Tyumen' TETs-2 cogeneration plant  

Science Conference Proceedings (OSTI)

Special features of operation of a boiler operating as a combined-cycle plant and having its own furnace and burner unit are descried. The flow of flue gases on the boiler is increased due to feeding of exhaust gases of the GTU into the furnace, which intensifies the convective heat exchange. In addition, it is not necessary to preheat air in the convective heating surfaces (the boiler has no air preheater). The convective heating surfaces of the boiler are used for heating the feed water, thus replacing the regeneration extractions of the steam turbine (HPP are absent in the circuit) and partially replacing the preheating of condensate (the LPP in the circuit of the unit are combined with preheaters of delivery water). Regeneration of the steam turbine is primarily used for the district cogeneration heating purposes. The furnace and burner unit of the exhaust-heat boiler (which is a new engineering solution for the given project) ensures utilization of not only the heat of the exhaust gases of the GTU but also of their excess volume, because the latter contains up to 15% oxygen that oxidizes the combustion process in the boiler. Thus, the gas temperature at the inlet to the boiler amounts to 580{sup o}C at an excess air factor a = 3.50; at the outlet these parameters are utilized to T{sub out} = 139{sup o}C and a{sub out} = 1.17. The proportions of the GTU/boiler loads that can actually be organized at the generating unit (and have been checked by testing) are presented and the proportions of loads recommended for the most efficient operation of the boiler are determined. The performance characteristics of the boiler are presented for various proportions of GTU/boiler loads. The operating conditions of the superheater and of the convective trailing heating surfaces are presented as well as the ecological parameters of the generating unit.

A.V. Kurochkin; A.L. Kovalenko; V.G. Kozlov; A.I. Krivobok [Engineering Center of the Ural Power Industry (Russian Federation)

2007-01-15T23:59:59.000Z

156

Base-Load and Peak Electricity from a Combined Nuclear Heat and Fossil Combined-Cycle Plant  

SciTech Connect

A combined-cycle power plant is proposed that uses heat from a high-temperature reactor and fossil fuel to meet base-load and peak electrical demands. The high temperature gas turbine produces shaft power to turn an electric generator. The hot exhaust is then fed to a heat recovery steam generator (HRSG) that provides steam to a steam turbine for added electrical power production. A simplified computational model of the thermal power conversion system was developed in order to parametrically investigate two different steady-state operation conditions: base load nuclear heat only from an Advanced High Temperature Reactor (AHTR), and combined nuclear heat with fossil heat to increase the turbine inlet temperature. These two cases bracket the expected range of power levels, where any intermediate power level can result during electrical load following. The computed results indicate that combined nuclear-fossil systems have the potential to offer both low-cost base-load electricity and lower-cost peak power relative to the existing combination of base-load nuclear plants and separate fossil-fired peak-electricity production units. In addition, electric grid stability, reduced greenhouse gases, and operational flexibility can also result with using the conventional technology presented here for the thermal power conversion system coupled with the AHTR. (authors)

Conklin, James C.; Forsberg, Charles W. [Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831 (United States)

2007-07-01T23:59:59.000Z

157

Base-Load and Peak Electricity from a Combined Nuclear Heat and Fossil Combined-Cycle Plant  

Science Conference Proceedings (OSTI)

A combined-cycle power plant is proposed that uses heat from a high-temperature reactor and fossil fuel to meet base-load and peak electrical demands. The high-temperature gas turbine produces shaft power to turn an electric generator. The hot exhaust is then fed to a heat recovery steam generator (HRSG) that provides steam to a steam turbine for added electrical power production. A simplified computational model of the thermal power conversion system was developed in order to parametrically investigate two different steady-state operation conditions: base load nuclear heat only from an Advanced High Temperature Reactor (AHTR), and combined nuclear heat with fossil heat to increase the turbine inlet temperature. These two cases bracket the expected range of power levels, where any intermediate power level can result during electrical load following. The computed results indicate that combined nuclear-fossil systems have the potential to offer both low-cost base-load electricity and lower-cost peak power relative to the existing combination of base-load nuclear plants and separate fossil-fired peak-electricity production units. In addition, electric grid stability, reduced greenhouse gases, and operational flexibility can also result with using the conventional technology presented here for the thermal power conversion system coupled with the AHTR.

Conklin, Jim [ORNL; Forsberg, Charles W [ORNL

2007-01-01T23:59:59.000Z

158

Abstract A COUPLED CFD FINITE ELEMENT ANALYSIS METHODOLOGY IN A BIFURCATION PIPE IN A NUCLEAR PLANT HEAT EXCHANGER  

E-Print Network (OSTI)

The accurate calculation of temperature distribution in key parts of a nuclear plant plays a crucial role in maximising the power output and the plant efficiency, whilst ensuring safe operation. The need for making the most profitable use of the available sources of energy requires the full exploitation of plant operational capacity. Temperature dependent material properties mean that increasing the power output in a nuclear plant may reduce the life of the welds in the pipes of the heat exchanger (boiler), operating in very demanding conditions. Rolls-Royce plc was requested to come up with a suitable solution that shielded critical pipe weld locations, reducing local temperatures, so allowing a useful increase in power output from the plant. Part of the heat shield design process was a comprehensive thermal analysis of the installation. Traditionally fluid and solid simulations are conducted separately or using conjugate analysis. Standard methods rely on the application of boundary conditions to the wall surface, which are commonly based on empirical heat transfer coefficient correlations or approximate read across of the CFD results. An alternative approach using conjugate calculations can be adopted, but the computational cost and meshing difficulties in matching the fluid and solid grids makes this unaffordable in terms of analysis time. This paper presents the application of an improved method using a communication library (SC89) between the in-house finite element (FE) code SC03, and the commercial computational fluid dynamics (CFD) code FLUENT. The method has been validated using test data from a Perspex model, where heat transfer coefficients were measured using a transient liquid crystal technique.

J. A. Dixon; A. Guijarro Valencia; P. Irel; P. Ridl; N. Hills

2010-01-01T23:59:59.000Z

159

Development of Molten-Salt Heat Transfer Fluid Technology for Parabolic Trough Solar Power Plants - Public Final Technical Report  

SciTech Connect

Executive Summary This Final Report for the "Development of Molten-Salt Heat Transfer Fluid (HTF) Technology for Parabolic Trough Solar Power Plants” describes the overall project accomplishments, results and conclusions. Phase 1 analyzed the feasibility, cost and performance of a parabolic trough solar power plant with a molten salt heat transfer fluid (HTF); researched and/or developed feasible component options, detailed cost estimates and workable operating procedures; and developed hourly performance models. As a result, a molten salt plant with 6 hours of storage was shown to reduce Thermal Energy Storage (TES) cost by 43.2%, solar field cost by 14.8%, and levelized cost of energy (LCOE) by 9.8% - 14.5% relative to a similar state-of-the-art baseline plant. The LCOE savings range met the project’s Go/No Go criteria of 10% LCOE reduction. Another primary focus of Phase 1 and 2 was risk mitigation. The large risk areas associated with a molten salt parabolic trough plant were addressed in both Phases, such as; HTF freeze prevention and recovery, collector components and piping connections, and complex component interactions. Phase 2 analyzed in more detail the technical and economic feasibility of a 140 MWe,gross molten-salt CSP plant with 6 hours of TES. Phase 2 accomplishments included developing technical solutions to the above mentioned risk areas, such as freeze protection/recovery, corrosion effects of applicable molten salts, collector design improvements for molten salt, and developing plant operating strategies for maximized plant performance and freeze risk mitigation. Phase 2 accomplishments also included developing and thoroughly analyzing a molten salt, Parabolic Trough power plant performance model, in order to achieve the project cost and performance targets. The plant performance model and an extensive basic Engineering, Procurement, and Construction (EPC) quote were used to calculate a real levelized cost of energy (LCOE) of 11.50¢/kWhe , which achieved the Phase 2 Go/No Go target of less than 0.12¢/kWhe. Abengoa Solar has high confidence that the primary risk areas have been addressed in the project and a commercial plant utilizing molten salt is economically and technically feasible. The strong results from the Phase 1 and 2 research, testing, and analyses, summarized in this report, led Abengoa Solar to recommend that the project proceed to Phase 3. However, a commercially viable collector interconnection was not fully validated by the end of Phase 2, combined with the uncertainty in the federal budget, forced the DOE and Abengoa Solar to close the project. Thus the resources required to construct and operate a molten salt pilot plant will be solely supplied by Abengoa Solar.

Grogan, Dylan C. P.

2013-08-15T23:59:59.000Z

160

Combustion testing and heat recovery study: Frank E. Van Lare Wastewater Treatment Plant, Monroe County. Final report  

DOE Green Energy (OSTI)

The objectives of the study were to record and analyze sludge management operations data and sludge incinerator combustion data; ascertain instrumentation and control needs; calculate heat balances for the incineration system; and determine the feasibility of different waste-heat recovery technologies for the Frank E. Van Lare (FEV) Wastewater Treatment Plant. As an integral part of this study, current and pending federal and state regulations were evaluated to establish their impact on furnace operation and subsequent heat recovery. Of significance is the effect of the recently promulgated Federal 40 CFR Part 503 regulations on the FEV facility. Part 503 regulations were signed into law in November 1992, and, with some exceptions, affected facilities must be in compliance by February 19, 1994. Those facilities requiring modifications or upgrades to their incineration or air pollution control equipment to meet Part 503 regulations must be in compliance by February 19, 1995.

NONE

1995-01-01T23:59:59.000Z

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


161

The (safety-related) heat exchangers aging management guideline for commercial nuclear power plants, and developments since 1994  

Science Conference Proceedings (OSTI)

The US Department of Energy (DOE), in cooperation with the Electric Power Research Institute (EPRI) and US nuclear power plant utilities, is preparing a series of aging management guidelines (AMGs) for commodity types of components (e.g., heat exchangers, electrical cable and terminations, pumps). Commodities are included in this series based on their importance to continued nuclear plant operation and license renewal. The AMGs contain a detailed summary of operating history, stressors, aging mechanisms, and various types of maintenance and surveillance practices that can be combined to create an effective aging management program. Each AMG is intended for use by the systems engineers and plant maintenance staff (i.e., an AMG is intended to be a hands-on technical document rather than a licensing document). The heat exchangers AMG, published in June 1994, includes the following information of interest to nondestructive examination (NDE) personnel: aging mechanisms determined to be non-significant for all applications; aging mechanisms determined to be significant for some applications; effective conventional programs for managing aging; and effective unconventional programs for managing aging. Since the AMG on heat exchangers was published four years ago, a brief review has been conducted to identify emerging regulatory issues, if any. The results of this review and lessons learned from the collective set of AMGs are presented.

Clauss, J.M.

1998-08-01T23:59:59.000Z

162

Mid-summer heat pushes up natural gas use at electric power plants ...  

U.S. Energy Information Administration (EIA)

... revenue and prices, power plants, fuel use, ... four Regional Transmission Organizations—Midwest Independent System Operator (MISO), the PJM Interconnection ...

163

Energy recovery during expansion of compressed gas using power plant low-quality heat sources  

SciTech Connect

A method of recovering energy from a cool compressed gas, compressed liquid, vapor, or supercritical fluid is disclosed which includes incrementally expanding the compressed gas, compressed liquid, vapor, or supercritical fluid through a plurality of expansion engines and heating the gas, vapor, compressed liquid, or supercritical fluid entering at least one of the expansion engines with a low quality heat source. Expansion engines such as turbines and multiple expansions with heating are disclosed.

Ochs, Thomas L. (Albany, OR); O' Connor, William K. (Lebanon, OR)

2006-03-07T23:59:59.000Z

164

Experiments to investigate direct containment heating phenomena with scaled models of the Calvert Cliffs Nuclear Power Plant  

Science Conference Proceedings (OSTI)

The Surtsey Test Facility is used to perform scaled experiments simulating High Pressure Melt Ejection accidents in a nuclear power plant (NPP). The experiments investigate the effects of direct containment heating (DCH) on the containment load. The results from Zion and Surry experiments can be extrapolated to other Westinghouse plants, but predicted containment loads cannot be generalized to all Combustion Engineering (CE) plants. Five CE plants have melt dispersal flow paths which circumvent the main mitigation of containment compartmentalization in most Westinghouse PWRs. Calvert Cliff-like plant geometries and the impact of codispersed water were addressed as part of the DCH issue resolution. Integral effects tests were performed with a scale model of the Calvert Cliffs NPP inside the Surtsey test vessel. The experiments investigated the effects of codispersal of water, steam, and molten core stimulant materials on DCH loads under prototypic accident conditions and plant configurations. The results indicated that large amounts of coejected water reduced the DCH load by a small amount. Large amounts of debris were dispersed from the cavity to the upper dome (via the annular gap). 22 refs., 84 figs., 30 tabs.

Blanchat, T.K.; Pilch, M.M.; Allen, M.D.

1997-02-01T23:59:59.000Z

165

Induction Heating Stress Improvement Effectiveness on Crack Growth in Operating Plants (BWRVIP-61)  

Science Conference Proceedings (OSTI)

New reports of intergranular stress corrosion cracking prompted this review of factors that could influence the performance of the pipe cracking remedy known as induction heating stress improvement.

1999-01-27T23:59:59.000Z

166

Combined cycle electric power plant and a heat recovery steam generator having improved boiler feed pump flow control  

SciTech Connect

A combined cycle electric power plant is described that includes gas and steam turbines and a steam generator for recovering the heat in the exhaust gases exited from the gas turbine and for using the recovered heat to produce and supply steam to the steam turbine. The steam generator includes an economizer tube and a high pressure evaporator tube and a boiler feed pump for directing the heat exchange fluid serially through the aforementioned tubes. A condenser is associated with the steam turbine for converting the spent steam into condensate water to be supplied to a deaerator for removing undesired air and for preliminarily heating the water condensate before being pumped to the economizer tube. Condensate flow through the economizer tube is maintained substantially constant by maintaining the boiler feed pump at a predetermined, substantially constant rate. A bypass conduit is provided to feed back a portion of the flow heated in the economizer tube to the deaerator; the portion being equal to the difference between the constant flow through the economizer tube and the flow to be directed through the high pressure evaporator tube as required by the steam turbine for its present load.

Martz, L.F.; Plotnick, R.J.

1976-06-29T23:59:59.000Z

167

Performance Calculations and Optimization of a Fresnel Direct Steam Generation CSP Plant with Heat Storage.  

E-Print Network (OSTI)

?? This master thesis deals with the performance calculations of a 9MW linear Fresnel CSP plant withdirect steam generation built by the Solar Division of… (more)

Schlaifer, Perrine

2013-01-01T23:59:59.000Z

168

EVALUATION OF A SULFUR OXIDE CHEMICAL HEAT STORAGE PROCESS FOR A STEAM SOLAR ELECTRIC PLANT  

E-Print Network (OSTI)

heat available at night) Gas Turbine Work Table 3.2. StreamTurbine (small turbine) Gas Turbine Parasitic Power BFW PumpHours) Generator Terminals Gas Turbine Parasitic Power BFW

Dayan, J.

2011-01-01T23:59:59.000Z

169

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

E-Print Network (OSTI)

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

DiGenova, Kevin (Kevin J.)

2011-01-01T23:59:59.000Z

170

Environmental Assessment for the Bison School District Heating Plant Project, Institutional Conservation Program (ICP)  

SciTech Connect

This environmental assessment analyzes the environmental impacts of replacing the Bison, South Dakota School District`s elementary school and high school heating system consisting of oil-fired boilers and supporting control system and piping

1995-12-31T23:59:59.000Z

171

Guideline for Condition Assessment and Inspection of Fossil Plant Heat Exchangers  

Science Conference Proceedings (OSTI)

Heat exchangers experience tube failures due primarily to inside surface pitting and flow-induced fretting wear at tube-to-tube support plate intersections. A fast volumetric tube-wall examination technique by eddy current is used from inside the tubes to test and maintain the structural integrity of installed tubing. Because heat exchanger tubing examination is not mandated, the eddy current examination practices vary from one contracted vendor to another. This document attempts to bridge the gap by pro...

2001-11-29T23:59:59.000Z

172

Commercial Kitchen Ventilation Performance Report: Six-Element Electric Range Top Under Wall-Mounted Canopy Hood  

Science Conference Proceedings (OSTI)

This report documents testing of ventilation requirements for a six-element electric range positioned under an exhaust-only canopy hood. This appliance and hood combination is one of a series undertaken to provide electric utilities and the food service industry with data to optimize the design of commercial kitchen ventilation systems and integrate exhaust requirements with space conditioning design.

1997-07-16T23:59:59.000Z

173

Commercial Kitchen Ventilation Performance Report: Six-Burner Gas Range Top Under Wall-Mounted Canopy Hood  

Science Conference Proceedings (OSTI)

This report documents testing of ventilation requirements for a six-element gas range positioned under an exhaust-only canopy hood. This appliance and hood combination is one of a series undertaken to provide electric utilities and the foodservice industry with data to optimize the design of commercial kitchen ventilation systems and integrate exhaust requirements with space conditioning design.

1997-09-17T23:59:59.000Z

174

Carbon Material Based Heat Exchanger for Waste Heat Recovery ...  

Industrial processing plants Nuclear power Solar power ... Carbon Material Based Heat Exchanger for Waste Heat Recovery from Engine Exhaust Contact:

175

Kitchen Table Strategy: Home Inspectors Driving Demand for Home Energy Upgrades  

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

20/2012 20/2012 1 Benjamin Gromicko, InterNACHI "Kitchen Table" Strategy: Home Inspectors Driving Demand for Home Energy Upgrades 3/20/2012 2 Benjamin Gromicko, InterNACHI "Although the home performance industry's delivery of comprehensive energy and comfort improvements has been growing across the country, it continues to struggle in creating consumer attention and demand. Our industry's delivery timing is off. We are not yet engaging the homeowner at their sweet spot of making improvements -- right after they purchase a home! This is when they move most aggressively with all sorts of home improvement projects -- and, unfortunately, seldom with any concerns of energy use. I strongly believe the home inspection industry is in a prime position to educate new homeowners on the long-term

176

EVALUATION OF A SULFUR OXIDE CHEMICAL HEAT STORAGE PROCESS FOR A STEAM SOLAR ELECTRIC PLANT  

E-Print Network (OSTI)

126 Larinoff, t~. W. , "Dry Cooling Tower Power Plant DesignRECEIVER-REACTOR . Dry Cooling Tower -v- TABLE OF CONTENTS (S03, of $364 K. Dry Cooling Tower Design of the dry cooling

Dayan, J.

2011-01-01T23:59:59.000Z

177

Willamina Project Report : Indirect-Fired, Biomass-Fueled, Combined-Cycle, Gas Turbine Power Plant Using a Ceramic Heat Exchanger. Volume 1. Conceptual Plant Design and Analysis. Final report. [Contains Glossary  

SciTech Connect

A new technology for a wood-fueled electrical generation plant was evaluated. The proposed plant utilizes an indirectly fired gas turbine (IFGT) using a ceramic heat exchanger for high efficiency, due to its high temperature capability. The proposed plant utilizes a wood-fueled furnace with a ceramic heat exchanger to heat compressed air for a gas turbine. The configuration proposed is a combined cycle power plant that can produce 6 to 12 MW, depending upon the amount of wood used to supplementally fire a heat recovery steam generator (HRSG), which in turn powers a steam turbine. Drawings, specifications, and cost estimates based on a combined cycle analysis and wood-fired HRSG were developed. The total plant capital cost was estimated to be $13.1 million ($1640/kW). The heat rate for a 8-MW plant was calculated to be 10,965 Btu/kW when using wood residues with a 42% moisture content. Levelized electric energy costs were estimated to be 6.9 cents/kWh.

F.W. Braun Engineers.

1984-05-01T23:59:59.000Z

178

Feasibility of geothermal heat use in the San Bernardino Municipal Wastewater Treatment Plant. Final report, September 1980-June 1981  

DOE Green Energy (OSTI)

A system was developed for utilizing nearby low temperature geothermal energy to heat two high-rate primary anaerobic digesters at the San Bernardino Wastewater Treatment Plant. The geothermal fluid would replace the methane currently burned to fuel the digesters. A summary of the work accomplished on the feasibility study is presented. The design and operation of the facility are examined and potentially viable applications selected for additional study. Results of these investigations and system descriptions and equipment specifications for utilizing geothermal energy in the selected processes are presented. The economic analyses conducted on the six engineering design cases are discussed. The environmental setting of the project and an analysis of the environmental impacts that will result from construction and operation of the geothermal heating system are discussed. A Resource Development Plan describes the steps that the San Bernardino Municipal Water Department could follow in order to utilize the resource. A preliminary well program and rough cost estimates for the production and injection wells also are included. The Water Department is provided with a program and schedule for implementing a geothermal system to serve the wastewater treatment plant. Regulatory, financial, and legal issues that will impact the project are presented in the Appendix. An outline of a Public Awareness Program is included.

Racine, W.C.; Larson, T.C.; Stewart, C.A.; Wessel, H.B.

1981-06-01T23:59:59.000Z

179

Internal Technical Report, Heat Exchanger Sizing for 20 MW Geothermal Power Plants at MX Sites  

DOE Green Energy (OSTI)

This report presents the details of the analyses used to size the heaters, steam condenser, and working fluid condenser for a proposed 20 MW geothermal power plant application at MX sites in the southwest. These units would use a mixture of hydrocarbons (90% isobutane--10% n-hexane) to extract energy from moderate temperature resources (resource temperatures of 365 F, 400 F, and 450 F were considered). The working fluid will be maintained at supercritical pressures in the heater units. Studies have shown that this cycle will provide a significant net power increase over standard dual boiling single fluid cycles currently in use, e.g., the Raft River 5 MW pilot plant.

Kochan, R.J.; Bliem, C.J.

1981-12-01T23:59:59.000Z

180

Nondestructive Evaluation: Electromagnetic NDE Guide for Balance of Plant Heat Exchangers, Revision 3  

Science Conference Proceedings (OSTI)

This report is Revision 3 to the original report. It presents summaries of nondestructive evaluation (NDE) procedures used for assessing the integrity of BOP heat exchanger tubing. This report is a living document that will be modified and updated with new information as it becomes available. Care has been taken to reorganize the report in a user-friendly layout that can accommodate future growth. As new material, this report contains information about mockups and specific materials. User comments are en...

2009-12-22T23:59:59.000Z

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


181

Assessing the Impact of Heat Rejection Technology on CSP Plant Revenue: Preprint  

DOE Green Energy (OSTI)

This paper explores the impact of cooling technology on revenue for hybrid-cooled plants with varying wet cooling penetration for four representative locations in the American Southwest. The impact of ACC design-point initial temperature difference (ITD - the difference between the condensing steam temperature and ambient dry-bulb) is also included in the analysis.

Wagner, M. J.; Kutscher, C. F.

2010-10-01T23:59:59.000Z

182

Digital computer code for simulating the dynamics of full-size dual-purpose desalting plants using a pressurized water reactor as a heat source  

SciTech Connect

A digital simulator was developed for use in calculating the dynamic response of full-size dual-purpose desalting plants. This simulator consists of a multistage flash (MSF) evaporator, a pressurized water reactor (PWR) as the heat source, a drumtype steam generator, and a turbine plant utilizing a back- pressure turbine. A bypass steam system was modeled to achieve flexible operation of the electric power and water portions of the combined plant. The proposed use of this simulator is to investigate various coupling and control schemes and to help determine possible problem areas in full back-pressure turbine dual-purpose desalting plant designs. (auth)

Delene, J.G.

1973-10-01T23:59:59.000Z

183

ABSORPTION HEAT PUMP IN THE DISTRICT HEATING  

E-Print Network (OSTI)

#12;ABSORPTION HEAT PUMP IN THE DISTRICT HEATING PLANT Dr.sc.ing. Agnese Lickrastina M.Sc. Normunds European Heat Pump Summit 2013, Nuremberg, 15-16.10.2013 · Riga District Heating company · Operation #12;JSC RGAS SILTUMS · the biggest District Heating company in Latvia and in the Baltic states

Oak Ridge National Laboratory

184

Refinery Waste Heat Ammonia Absorption Refrigeration Plant (WHAARP) Recovers LPG's and Gasoline, Saves Energy, and Reduces Air Pollution  

E-Print Network (OSTI)

A first-of-its-kind Waste Heat Ammonia Absorption Refrigeration Plant (WHAARP™) was installed by Planetec Utility Services Co., Inc. in partnership with Energy Concepts Co. at Ultramar Diamond Shamrock's 30,000 barrel per day refinery in Denver, Colorado. The refrigeration unit is designed to provide refrigeration for two process units at the refinery while utilizing waste heat as the energy source. The added refrigeration capacity benefits the refinery by recovering salable products, debottlenecking process units, avoiding additional electrical demand, and reducing the refinery Energy Intensity Index. In addition, the WHAARP unit lowers air pollutant emissions by reducing excess fuel gas that is combusted in the refinery flare. A comprehensive utility and process efficiency Master Plan developed for the Denver refinery by Planetec provided the necessary platform for implementing this distinctive project. The $2.3 million WHAARP system was paid for in part by a $760,000 grant from the U.S. Department of Energy, as part of their "Industry of the Future Program". Total combined benefits are projected to be approximately $1 million/year with a 1.6 year simple payback including the grant funding.

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

1998-04-01T23:59:59.000Z

185

Comparison of emissions from selected commercial kitchen appliances and food products  

SciTech Connect

Effluents have been measured from various grease-producing cooking processes in an attempt to quantify the emissions that enter typical commercial kitchen exhaust hoods. The appliances tested include gas and electric versions of single-sided griddles, open-vat deep fat fryers, under-fired broilers, full size convection ovens, and six burner ranges. Food products include hamburger, chicken breast, fries, sausage pizza, and a spaghetti meal. Emission data were obtained for particles, grease vapor, CO, CO{sub 2}, NO{sub x}, and hydrocarbons. Velocity and temperature fields were measured in the plume above each appliance. Results show that a large fraction of the grease emission is typically in vapor form. The broilers emit significantly more particles less than 2.5 {micro}m in size (PM 2.5) than the other appliances tested. Combustion by-products were measured for all gas appliances. Both the gas and electric broilers emitted significant amounts of CO when hamburgers were cooked. Aromatic hydrocarbon concentrations were below detectable limits in all tests.

Kuehn, T.H.; Gerstler, W.D.; Pui, D.Y.H.; Ramsey, J.W.

1999-07-01T23:59:59.000Z

186

Thermal-Hydraulic Analyses of Heat Transfer Fluid Requirements and Characteristics for Coupling A Hydrogen Production Plant to a High-Temperature Nuclear Reactor  

DOE Green Energy (OSTI)

The Department of Energy is investigating the use of high-temperature nuclear reactors to produce hydrogen using either thermochemical cycles or high-temperature electrolysis. Although the hydrogen production processes are in an early stage of development, coupling either of these processes to the hightemperature reactor requires both efficient heat transfer and adequate separation of the facilities to assure that off-normal events in the production facility do not impact the nuclear power plant. An intermediate heat transport loop will be required to separate the operations and safety functions of the nuclear and hydrogen plants. A next generation high-temperature reactor could be envisioned as a single-purpose facility that produces hydrogen or a dual-purpose facility that produces hydrogen and electricity. Early plants, such as the proposed Next Generation Nuclear Plant, may be dual-purpose facilities that demonstrate both hydrogen and efficient electrical generation. Later plants could be single-purpose facilities. At this stage of development, both single- and dual-purpose facilities need to be understood. Seven possible configurations for a system that transfers heat between the nuclear reactor and the hydrogen and/or electrical generation plants were identified. These configurations included both direct and indirect cycles for the production of electricity. Both helium and liquid salts were considered as the working fluid in the intermediate heat transport loop. Methods were developed to perform thermalhydraulic and cycle-efficiency evaluations of the different configurations and coolants. The thermalhydraulic evaluations estimated the sizes of various components in the intermediate heat transport loop for the different configurations. The relative sizes of components provide a relative indication of the capital cost associated with the various configurations. Estimates of the overall cycle efficiency of the various configurations were also determined. The evaluations determined which configurations and coolants are the most promising from thermal-hydraulic and efficiency points of view. These evaluations also determined which configurations and options do not appear to be feasible at the current time.

C. B. Davis; C. H. Oh; R. B. Barner; D. F. Wilson

2005-06-01T23:59:59.000Z

187

Energy Assessment Helps Kaiser Aluminum Save Energy and Improve Productivity; DOE Software Adopted as Standard for Analyzing Plant Process Heating Systems Company-Wide  

Science Conference Proceedings (OSTI)

This case study describes how the Kaiser Aluminum plant in Sherman, Texas, achieved annual savings of $360,000 and 45,000 MMBtu, and improved furnace energy intensity by 11.1% after receiving a DOE Save Energy Now energy assessment and implementing recommendations to improve the efficiency of its process heating system.

Not Available

2008-07-01T23:59:59.000Z

188

Techno-economic analysis of using corn stover to supply heat and power to a corn ethanol plant - Part 1: Cost of feedstock supply logistics  

Science Conference Proceedings (OSTI)

Supply of corn stover to produce heat and power for a typical 170 dam3 dry mill ethanol plant is proposed. The corn ethanol plant requires 5.6 MW of electricity and 52.3 MW of process heat, which creates the annual stover demand of as much as 140 Gg. The corn stover supply system consists of collection, preprocessing, transportation and on-site fuel storage and preparation to produce heat and power for the ethanol plant. Economics of the entire supply system was conducted using the Integrated Biomass Supply Analysis and Logistics (IBSAL) simulation model. Corn stover was delivered in three formats (square bales, dry chops and pellets) to the combined heat and power plant. Delivered cost of biomass ready to be burned was calculated at 73 $ Mg-1 for bales, 86 $ Mg-1 for pellets and 84 $ Mg-1 for field chopped biomass. Among the three formats of stover supply systems, delivered cost of pelleted biomass was the highest due to high pelleting cost. Bulk transport of biomass in the form of chops and pellets can provide a promising future biomass supply logistic system in the US, if the costs of pelleting and transport are minimized.

Sokhansanj, Shahabaddine [ORNL; Mani, Sudhagar [University of Georgia; Togore, Sam [U.S. Department of Energy; Turhollow Jr, Anthony F [ORNL

2010-01-01T23:59:59.000Z

189

On-Line Monitoring and Diagnostics of the Integrity of Nuclear Plant Steam Generators and Heat Exchangers.  

SciTech Connect

The overall purpose of this Nuclear Engineering Education Research (NEER) project was to integrate new, innovative, and existing technologies to develop a fault diagnostics and characterization system for nuclear plant steam generators (SG) and heat exchangers (HX). Issues related to system level degradation of SG and HX tubing, including tube fouling, performance under reduced heat transfer area, and the damage caused by stress corrosion cracking, are the important factors that influence overall plant operation, maintenance, and economic viability of nuclear power systems. The research at The University of Tennessee focused on the development of techniques for monitoring process and structural integrity of steam generators and heat exchangers. The objectives of the project were accomplished by the completion of the following tasks. All the objectives were accomplished during the project period. This report summarizes the research and development activities, results, and accomplishments during June 2001-September 2004. (1) Development and testing of a high-fidelity nodal model of a U-tube steam generator (UTSG) to simulate the effects of fouling and to generate a database representing normal and degraded process conditions. Application of the group method of data handling (GMDH) method for process variable prediction. (2) Development of a laboratory test module to simulate particulate fouling of HX tubes and its effect on overall thermal resistance. Application of the GMDH technique to predict HX fluid temperatures, and to compare with the calculated thermal resistance. (3) Development of a hybrid modeling technique for process diagnosis and its evaluation using laboratory heat exchanger test data. (4) Development and testing of a sensor suite using piezo-electric devices for monitoring structural integrity of both flat plates (beams) and tubing. Experiments were performed in air, and in water with and without bubbly flow. (5) Development of advanced signal processing methods using wavelet transforms and image processing techniques for isolating flaw types. (6) Development and implementation of a new nonlinear and non-stationary signal processing method, called the Hilbert-Huang transform (HHT), for flaw detection and location. This is a more robust and adaptive approach compared to the wavelet transform. (7) Implementation of a moving-window technique in the time domain for detecting and quantifying flaw types in tubular structures. A window zooming technique was also developed for flaw location in tubes. (8) Theoretical study of elastic wave propagation (longitudinal and shear waves) in metallic flat plates and tubing with and without flaws. (9) Simulation of the Lamb wave propagation using the finite-element code ABAQUS. This enabled the verification of the experimental results. The research tasks included both analytical research and experimental studies. The experimental results helped to enhance the robustness of fault monitoring methods and to provide a systematic verification of the analytical results. The results of this research were disseminated in scientific meetings. A journal manuscript was submitted for publication. The new findings of this research have potential applications in aerospace and civil structures. The report contains a complete bibliography that was developed during the course of the project.

Belle R. Upadhyaya; J. Wesley Hines

2004-09-27T23:59:59.000Z

190

Open-cycle magnetohydrodynamic power plant based upon direct-contact closed-loop high-temperature heat exchanger  

DOE Patents (OSTI)

A magnetohydrodynamic (MHD) power generating system in which ionized combustion gases with slag and seed are discharged from an MHD combustor and pressurized high temperature inlet air is introduced into the combustor for supporting fuel combustion at high temperatures necessary to ionize the combustion gases, and including a heat exchanger in the form of a continuous loop with a circulating heat transfer liquid such as copper oxide. The heat exchanger has an upper horizontal channel for providing direct contact between the heat transfer liquid and the combustion gases to cool the gases and condense the slag which thereupon floats on the heat transfer liquid and can be removed from the channel, and a lower horizontal channel for providing direct contact between the heat transfer liquid and pressurized air for preheating the inlet air. The system further includes a seed separator downstream of the heat exchanger.

Berry, Gregory F. (Naperville, IL); Minkov, Vladimir (Skokie, IL); Petrick, Michael (Joliet, IL)

1988-01-01T23:59:59.000Z

191

Use of a Heated Transfer Line-Membrane Interface Probe to Characterize Polycyclic Aromatic Hydrocarbons at a Manufactured Gas Plant Site  

Science Conference Proceedings (OSTI)

This report describes bench-scale and field pilot tests of a system integrating a heated transfer line (HTL) and a membrane interface probe (MIP) with commercially available analytical instruments and software. Driven into the subsurface by a cone penetrometer, the HTL-MIP thermally extracts organic compounds from saturated and unsaturated soils at former manufactured gas plant (MGP) sites. The integrated system detects compounds using a screening photo-ionization detector (PID) and analyzes them in situ...

2008-04-30T23:59:59.000Z

192

Evaluation of an Absorption Heat Pump to Mitigate Plant Capacity Reduction Due to Ambient Temperature Rise for an Air-Cooled Ammonia and Water Cycle: Preprint  

DOE Green Energy (OSTI)

Air-cooled geothermal plants suffer substantial decreases in generating capacity at increased ambient temperatures. As the ambient temperature rises by 50 F above a design value of 50 F, at low brine-resource temperatures, the decrease in generating capacity can be more than 50%. This decrease is caused primarily by increased condenser pressure. Using mixed-working fluids has recently drawn considerable attention for use in power cycles. Such cycles are more readily amenable to use of absorption ''heat pumps.'' For a system that uses ammonia and water as the mixed-working fluid, this paper evaluates using an absorption heat pump to reduce condenser backpressure. At high ambient temperatures, part of the turbine exhaust vapor is absorbed into a circulating mixed stream in an absorber in series with the main condenser. This steam is pumped up to a higher pressure and heated to strip the excess vapor, which is recondensed using an additional air-cooled condenser. The operating conditions are chosen to reconstitute this condensate back to the same concentration as drawn from the original system. We analyzed two power plants of nominal 1-megawatt capacity. The design resource temperatures were 250 F and 300 F. Ambient temperature was allowed to rise from a design value of 50 F to 100 F. The analyses indicate that using an absorption heat pump is feasible. For the 300 F resource, an increased brine flow of 30% resulted in a net power increase of 21%. For the 250 F resource, the increase was smaller. However, these results are highly plant- and equipment-specific because evaluations must be carried out at off-design conditions for the condenser. Such studies should be carried out for specific power plants that suffer most from increased ambient temperatures.

Bharathan, D.; Nix, G.

2001-08-06T23:59:59.000Z

193

Heating, Ventilation and Air Conditioning Efficiency  

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

Presented By: WALTER E. JOHNSTON, PE Presented By: WALTER E. JOHNSTON, PE CEM, CEA, CLEP, CDSM, CPE Heating, Ventilation and Air Conditioning (HVAC) system is to provide and maintain a comfortable environment within a building for the occupants or for the process being conducted Many HVAC systems were not designed with energy efficiency as one of the design factors 3 Air Air is the major conductor of heat. Lack of heat = air conditioning OR 4 Btu - Amount of heat required to raise one pound of water 1 F = 0.252 KgCal 1 Pound of Water = About 1 Pint of Water ~ 1 Large Glass 1 Kitchen Match Basics of Air Conditioning = 1 Btu 5 = 6 Low Cost Cooling Unit 7 8 Typical Design Conditions 75 degrees F temperature 50% relative humidity 30 - 50 FPM air movement

194

Combined cycle electric power plant and heat recovery steam generator having improved multi-loop temperature control of the steam generated  

SciTech Connect

A combined cycle electric power plant is described that includes gas and steam turbines and a steam generator for recovering the heat in the exhaust gases exited from the gas turbine and for using the recovered heat to produce and supply steam to the steam turbine. The steam generator includes a superheater tube and a steam drum from which heated steam is directed through the superheater to be additionally heated into superheated steam by the exhaust gas turbine gases. An afterburner serves to further heat the exhaust gas turbine gases passed to the superheater tube and a bypass conduit is disposed about the superheater tube whereby a variable steam flow determined by a bypass valve disposed in the bypass conduit may be directed about the superheater tube to be mixed with the superheated steam therefrom, whereby the temperature of the superheated steam supplied to the steam turbine may be accurately controlled. Steam temperature control means includes a first control loop responsive to the superheated steam temperature for regulating the position of the bypass valve with respect to a first setpoint, and a second control loop responsive to the superheated steam temperature for controlling the fuel supply to the afterburner with respect to a second setpoint varying in accordance with the bypass valve position. In particular, as the bypass valve position increases, the second setpoint, originally higher, is lowered toward a value substantially equal to that of the first setpoint.

Martz, L.F.; Plotnick, R.J.

1976-08-17T23:59:59.000Z

195

Realized and Projected Impacts of U.S. Energy Efficiency Standards for Residential and Commercial Appliances  

E-Print Network (OSTI)

kitchen ranges and ovens, direct heating equipment (wall,Heating Equipment, Mobile Home Furnaces, Kitchen Ranges and Ovens,

Meyers, Stephen P.

2008-01-01T23:59:59.000Z

196

Impacts of Imported Liquefied Natural Gas on Residential Appliance Components: Literature Review  

E-Print Network (OSTI)

Heating Equipment, Mobile Home Furnaces, Kitchen Ranges and Ovens,Heating Equipment, Mobile Home Furnaces, Kitchen Ranges and Ovens,

Lekov, Alex

2010-01-01T23:59:59.000Z

197

Process Heating  

Science Conference Proceedings (OSTI)

This technical update uses real world examples to discuss applications of electrotechnology in industrial process heating and to highlight some of the emerging technologies in this field. These emerging technologies, when implemented in a plant, will provide significant energy savings as well as increase productivity. The report presents three case studies of successful implementation of two different electric process-heating technologies in three different industries. The case studies show that in some ...

2011-12-07T23:59:59.000Z

198

Proceedings: Ninth International Conference on Cycle Chemistry in Fossil and Combined Cycle Plants with Heat Recovery Steam Generators  

Science Conference Proceedings (OSTI)

Proper selection, application, and optimization of cycle chemistry have long been recognized as integral to ensuring the highest possible levels of component availability and reliability in fossil-fired generating plant units. These proceedings of the Ninth EPRI International Conference on Cycle Chemistry in Fossil Plants address state-of-the-art practices in conventional and combined-cycle plants. The content provides a worldwide perspective on cycle chemistry practices and insight on industry issues an...

2010-01-22T23:59:59.000Z

199

Op%mal Scheduling of Combined Heat and Power (CHP) Plants1 under Time-sensi%ve Electricity Prices  

E-Print Network (OSTI)

) Co-genera8on of electricity and heat Storage Microgrids2 1. "Systema%c u. A microgrid refers to a "local grid" that can work autonomously from the central

Grossmann, Ignacio E.

200

Development of Technologies on Innovative Simplified Nuclear Power Plant Using High-Efficiency Steam Injectors (10) Application to a Small District-Heating Reactor  

SciTech Connect

A steam injector (SI) is a simple, compact and passive pump and also acts as a high-performance direct-contact compact heater. This provides SI with capability to use as a passive ECCS pump and also as a direct-contact feedwater heater that heats up feedwater by using extracted steam from the turbine. In order to develop a high reliability passive ECCS pump and a compact feedwater heater, it is necessary to quantify the characteristics between physical properties of the flow field. We carried out experiments to observe the internal behavior of the water jet as well as measure the velocity of steam jet using a laser Doppler velocimetry. Its performance depends on the phenomena of steam condensation onto the water jet surface and heat transfer in the water jet due to turbulence on to the phase-interface. The analysis was also conducted by using a CFD code with the separate two-phase flow models. With regard to the simplified feed-water system, size of four-stage SI system is almost the same as the model SI that had done the steam and water test that pressures were same as that of current ABWR. The authors also conducted the hot water supply system test in the snow for a district heating. With regard to the SI core cooling system, the performance tests results showed that the low-pressure SI core cooling system will decrease the PCT to almost the same as the saturation temperature of the steam pressure in a pressure vessel. As it is compact equipment, SI is expected to bring about great simplification and materials-saving effects, while its simple structure ensures high reliability of its operation, thereby greatly contributing to the simplification of the power plant for not only an ABWR power plant but also a small PWR/ BWR for district heating system. (authors)

Tadashi Narabayashi; Yoichiro Shimadu; Toshiiro Murase; Masatoshi Nagai [Hokkaido University, Kita-ku, Sapporo (Japan); Michitsugu Mori; Shuichi Ohmori [Tokyo Electric Power Company (Japan)

2006-07-01T23:59:59.000Z

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


201

Central receiver solar thermal power system, Phase 1. CDRL Item 2. Pilot plant preliminary design report. Volume V. Thermal storage subsystem. [Sensible heat storage using Caloria HT43 and mixture of gravel and sand  

DOE Green Energy (OSTI)

The proposed 100-MWe Commercial Plant Thermal Storage System (TSS) employs sensible heat storage using dual liquid and solid media for the heat storage in each of four tanks, with the thermocline principle applied to provide high-temperature, extractable energy independent of the total energy stored. The 10-MW Pilot Plant employs a similar system except uses only a single tank. The high-temperature organic fluid Caloria HT43 and a rock mixture of river gravel and No. 6 silica sand were selected for heat storage in both systems. The system design, installation, performance testing, safety characteristics, and specifications are described in detail. (WHK)

Hallet, Jr., R. W.; Gervais, R. L.

1977-10-01T23:59:59.000Z

202

Engineering and economic feasibility of utilizing geothermal heat from the Heber reservoir for industrial processing purposes at Valley Nitrogen Producers Inc. , El Centro agricultural chemical plant. Final report  

DOE Green Energy (OSTI)

The engineering and economic feasibility of utilizing geothermal heat from the Heber KGRA for industrial processing purposes at the Valley Nitrogen Producers, Inc. El Centro, California agricultural chemical plant was investigated. The analysis proceeds through the preliminary economics to determine the restraints imposed by geothermal modification size on internal rates of return, and through the energy utilization evaluation to determine the best method for substituting geothermal energy for existing fossil fuel energy. Finally, several geothermal utilization schemes were analyzed for detailed cost-benefit evaluation. An economically viable plan for implementing geothermal energy in the VNP Plant was identified and the final conclusions and recommendations were made based on these detailed cost-benefit analyses. Costs associated with geothermal energy production and implementation were formulated utilizing a modified Battelle Pacific Northwest Laboratories' ''GEOCOST'' program.

Sherwood, P.B.; Newman, K.L.

1977-09-01T23:59:59.000Z

203

Industrial Waste Heat Recovery Using Heat Pipes  

E-Print Network (OSTI)

For almost a decade now, heat pipes with secondary finned surfaces have been utilized in counter flow heat exchangers to recover sensible energy from industrial exhaust gases. Over 3,000 such heat exchangers are now in service, recovering an estimated energy equivalent of nearly 1.1 million barrels of oil annually. Energy recovered by these units has been used to either preheat process supply air or to heat plant comfort make-up air. Heat pipe heat exchangers have been applied to an ever-expanding variety of industrial processes. One notable application in recent years has been for combustion airs preheat of fired heaters in petroleum refineries and petrochemical plants. Another recent development has been a waste heat recovery boiler using heat pipes. This device has a number of advantageous features. Field operational experience of several units in service has been excellent.

Ruch, M. A.

1981-01-01T23:59:59.000Z

204

Combined thermal storage pond and dry cooling tower waste heat rejection system for solar-thermal steam-electric power plants. Final report  

DOE Green Energy (OSTI)

The thermal performance and economics of the combined thermal storage pond and dry cooling tower waste heat rejection system concept for solar-thermal steam-electric plants have been evaluated. Based on the computer simulation of the operation of southwest-sited solar-thermal plants, it has been determined that the combined pond-tower concept has significant cost and performance advantages over conventional dry cooling systems. Use of a thermal storage pond as a component of the dry cooling system allows a significant reduction in the required dry cooling heat exchange capacity and the associated parasitic power consumption. Importantly, it has been concluded that the combined pond-tower dry cooling system concept can be employed to economically maintain steam condensing temperatures at levels normally achieved with conventional evaporative cooling systems. An evaluation of alternative thermal storage pond design concepts has revealed that a stratified vertical-flow cut-and-fill reservoir with conventional membrane lining and covering would yield the best overall system performance at the least cost.

Guyer, E.C.; Bourne, J.G.; Brownell, D.L.; Rose, R.M.

1979-02-28T23:59:59.000Z

205

7-88 A geothermal power plant uses geothermal liquid water at 160C at a specified rate as the heat source. The actual and maximum possible thermal efficiencies and the rate of heat rejected from this power plant  

E-Print Network (OSTI)

7-31 7-88 A geothermal power plant uses geothermal liquid water at 160ºC at a specified rate and potential energy changes are zero. 3 Steam properties are used for geothermal water. Properties Using saturated liquid properties, the source and the sink state enthalpies of geothermal water are (Table A-4) k

Bahrami, Majid

206

Heat Rate Program Guidelines  

Science Conference Proceedings (OSTI)

Power plant facilities with performance or heat rate improvement programs perform better than those that do not have those programs. A heat rate improvement program typically provides sufficient information for decision making with respect to timely maintenance actions and/or operational adjustments. Monitoring the performance of any power plant component includes the trending of parameters that also describe the performance of other plant components, providing insight and information on improving ...

2012-12-31T23:59:59.000Z

207

Corrosion and biofouling on the non-heat-exchanger surfaces of an ocean thermal energy conversion power plant: a survey  

DOE Green Energy (OSTI)

Of the many foreseeable problems confronting economical ocean thermal energy conversion operation, two major items are the deterioration of the structural and functional components, which prevents efficient operation, and the biofouling of the surfaces, which adds excess weight to the floating ocean platform. The techniques required for effective long-term control of deterioration and corrosion have been investigated actively for many years, and successful solutions for most situations have been developed. For the most part, these solutions can be directly transferred to the ocean thermal energy conversion plant. The majority of problems in these areas are expected to be associated with scale-up and will require some advanced development due to the immensity of the ocean thermal energy conversion platform. Current antifouling control systems are not effective for long-term fouling prevention. Commercially available antifouling coatings are limited to a 3-year service life in temperate waters, and even shorter in tropical waters. However, underwater cleaning techniques and some fouling-control systems presently being used by conventional power plants may find utility on an ocean thermal energy conversion plant. In addition, some recent major advances in long-term antifouling coatings sponsored by the Navy may be applicable to ocean thermal energy conversion. 132 references.

Castelli, V.J. (ed.)

1979-05-01T23:59:59.000Z

208

Definition: District heat | Open Energy Information  

Open Energy Info (EERE)

District heat District heat Jump to: navigation, search Dictionary.png District heat A heating system that uses steam or hot water produced outside of a building (usually in a central plant) and piped into the building as an energy source for space heating, hot water or another end use.[1][2][3] View on Wikipedia Wikipedia Definition District heating (less commonly called teleheating) is a system for distributing heat generated in a centralized location for residential and commercial heating requirements such as space heating and water heating. The heat is often obtained from a cogeneration plant burning fossil fuels but increasingly biomass, although heat-only boiler stations, geothermal heating and central solar heating are also used, as well as nuclear power. District heating plants can provide higher efficiencies and better

209

Energy Efficiency Improvement and Cost Saving Opportunities for Cement Making. An ENERGY STAR Guide for Energy and Plant Managers  

E-Print Network (OSTI)

Concepts of Waste Heat Recovery in Cement Plants” EnergyM. , 1990. “Waste Gas Heat Recovery in Cement Plants” Energy

Worrell, Ernst

2008-01-01T23:59:59.000Z

210

Application of a Heat Integrated Post-combustion CO2 Capture System with Hitachi Advanced Solvent into Existing Coal-Fired Power Plant Award Number: DE-FE0007395 DOE Project Manager: José D. Figueroa  

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

a Heat Integrated Post- a Heat Integrated Post- combustion CO 2 Capture System with Hitachi Advanced Solvent into Existing Coal-Fired Power Plant University of Kentucky Research Foundation Partnered with U.S. Department of Energy NETL Louisville Gas & Electric and Kentucky Utilities Electric Power Research Institute (with WorleyParsons) Hitachi Power Systems America Smith Management Group July 9, 2013 Goals and Objectives * Objectives 1) To demonstrate a heat-integrated post-combustion CO 2 capture system with an advanced solvent; 2) To collect information/data on material corrosion and identify appropriate materials of construction for a 550 MWe commercial-scale carbon capture plant.  To gather data on solvent degradation kinetics, water management, system dynamic control as well as other information during the long-term

211

Waste Heat Recovery from Industrial Process Heating Equipment -  

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

Waste Heat Recovery from Industrial Process Heating Equipment - Waste Heat Recovery from Industrial Process Heating Equipment - Cross-cutting Research and Development Priorities Speaker(s): Sachin Nimbalkar Date: January 17, 2013 - 11:00am Location: 90-2063 Seminar Host/Point of Contact: Aimee McKane Waste heat is generated from several industrial systems used in manufacturing. The waste heat sources are distributed throughout a plant. The largest source for most industries is exhaust / flue gases or heated air from heating systems. This includes the high temperature gases from burners in process heating, lower temperature gases from heat treat, dryers, and heaters, heat from heat exchangers, cooling liquids and gases etc. The previous studies and direct contact with the industry as well as equipment suppliers have shown that a large amount of waste heat is not

212

Heat pipe array heat exchanger  

DOE Patents (OSTI)

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

Reimann, Robert C. (Lafayette, NY)

1987-08-25T23:59:59.000Z

213

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

DOE Green Energy (OSTI)

This technical brief is a guide to help plant operators reduce waste heat losses associated with process heating equipment.

Not Available

2004-11-01T23:59:59.000Z

214

Heat Recovery from Coal Gasifiers  

E-Print Network (OSTI)

This paper deals with heat recovery from pressurized entrained and fixed bed coal gasifiers for steam generation. High temperature waste heat, from slagging entrained flow coal gasifier, can be recovered effectively in a series of radiant and convection waste heat boilers. Medium level waste heat leaving fixed bed type gasifiers can be recovered more economically by convection type boilers or shell and tube heat exchangers. An economic analysis for the steam generation and process heat exchanger is presented. Steam generated from the waste heat boiler is used to drive steam turbines for power generation or air compressors for the oxygen plant. Low level heat recovered by process heat exchangers is used to heat product gas or support the energy requirement of the gasification plant. The mechanical design for pressure vessel shell and boiler tubes is discussed. The design considers metallurgical requirements associated with hydrogen rich, high temperature, and high pressure atmosphere.

Wen, H.; Lou, S. C.

1981-01-01T23:59:59.000Z

215

Experiments to investigate direct containment heating phenomena with scaled models of the Zion Nuclear Power Plant in the Surtsey Test Facility  

SciTech Connect

The Surtsey Facility at Sandia National Laboratories (SNL) is used to perform scaled experiments that simulate hypothetical high-pressure melt ejection (HPME) accidents in a nuclear power plant (NPP). These experiments are designed to investigate the effect of specific phenomena associated with direct containment heating (DCH) on the containment load, such as the effect of physical scale, prototypic subcompartment structures, water in the cavity, and hydrogen generation and combustion. In the Integral Effects Test (IET) series, 1:10 linear scale models of the Zion NPP structures were constructed in the Surtsey vessel. The RPV was modeled with a steel pressure vessel that had a hemispherical bottom head, which had a 4-cm hole in the bottom head that simulated the final ablated hole that would be formed by ejection of an instrument guide tube in a severe NPP accident. Iron/alumina/chromium thermite was used to simulate molten corium that would accumulate on the bottom head of an actual RPV. The chemically reactive melt simulant was ejected by high-pressure steam from the RPV model into the scaled reactor cavity. Debris was then entrained through the instrument tunnel into the subcompartment structures and the upper dome of the simulated reactor containment building. The results of the IET experiments are given in this report.

Allen, M.D.; Pilch, M.M.; Blanchat, T.K.; Griffith, R.O. [Sandia National Labs., Albuquerque, NM (United States); Nichols, R.T. [Ktech Corp., Albuquerque, NM (United States)

1994-05-01T23:59:59.000Z

216

#tipsEnergy: Ways to Save on Water Heating Costs | Department of Energy  

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

Water Heating Costs Water Heating Costs #tipsEnergy: Ways to Save on Water Heating Costs February 20, 2013 - 5:09pm Addthis Rebecca Matulka Rebecca Matulka Digital Communications Specialist, Office of Public Affairs #tipsEnergy: Ways to Save on Water Heating Costs Every month we ask the larger energy community to share their energy-saving tips, and we feature some of our favorite tips in a Storify. For this month's #tipsEnergy, we wanted to know how you save energy and money on water heating. Storified by Energy Department · Wed, Feb 20 2013 14:12:00 Hot water is essential to most of our lives: We use it to shower, run the dishwasher and wash clothes. Quite frequently, we use more hot water than we think -- the average rate hot water flows out of the kitchen faucet is 2 gallons per minute, and an eight-minute shower

217

Section B: KITCHEN APPLIANCES  

U.S. Energy Information Administration (EIA)

Natural gas from underground pipes..... 01 Propane (bottled gas ... APPLIANCES IN THIS HOUSING UNIT THAT MIGHT PROVIDE CLARIFICATION TO THE RESPONDENTS

218

Geothermal shell and tube heat exchanger augmentation  

DOE Green Energy (OSTI)

The heat exchangers for a moderate temperature geothermal plant represent a major portion of the plant capital cost. Therefore, reduction in heat exchanger size will significantly improve the electrical power economics. The potential heat exchanger size reduction that could be achieved by reducing any combination heat transfer resistance terms is evaluated. A literature survey of heat transfer augmentation schemes is summarized and equations for evaluating the impact of cleaning frequency on heat exchanger size are presented. Recommendations are made specifically for the Raft River Thermal Loop, however, the techniques are applicable to any other geothermal plant or heat transfer system.

Neill, D.T.

1976-11-01T23:59:59.000Z

219

Realized and projected impacts of U.S. federal efficiency standards for residential appliances  

E-Print Network (OSTI)

kitchen ranges and ovens, direct heating equipment (wall,Ranges and Ovens Pool Heaters Direct Heating Equipment X =Heating Equipment, Mobile Home Furnaces, Kitchen Ranges and Ovens,

Meyers, Stephen; McMahon, James; McNeil, Michael; Liu, Xiaomin

2002-01-01T23:59:59.000Z

220

Realized and prospective impacts of U.S. energy efficiency standards for residential appliances: 2004 update  

E-Print Network (OSTI)

kitchen ranges and ovens, direct heating equipment (wall,Ranges and Ovens Pool Heaters Direct Heating Equipment X =Heating Equipment, Mobile Home Furnaces, Kitchen Ranges and Ovens,

Meyers, Stephen; McMahon, James; McNeil, Michael

2005-01-01T23:59:59.000Z

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


221

IMPROVEMENTS IN POWER PLANT  

SciTech Connect

A power plant for nuclear reactors is designed for improved cycle efficiency. In addition to the usual heat exchanger for heat transfer from gaseous reactor coolant to water for vaporization, a second heat exchanger is provided between the first heat exchanger and a point betwveen the intermediate- pressure and low-pressure turbine stages. In this way, interstage reheating of the steam is obtained without passage of the steam back to the first heat exchanger. (D.L.C.) Research Reactors

Peters, M.C.

1961-10-11T23:59:59.000Z

222

Heat pipe heat amplifier  

SciTech Connect

In a heat pipe combination consisting of a common condenser section with evaporator sections at either end, two working fluids of different vapor pressures are employed to effectively form two heat pipe sections within the same cavity to support an amplifier mode of operation.

Arcella, F.G.

1978-08-15T23:59:59.000Z

223

Heat rejection system  

DOE Patents (OSTI)

A cooling system for rejecting waste heat consists of a cooling tower incorporating a plurality of coolant tubes provided with cooling fins and each having a plurality of cooling channels therein, means for directing a heat exchange fluid from the power plant through less than the total number of cooling channels to cool the heat exchange fluid under normal ambient temperature conditions, means for directing water through the remaining cooling channels whenever the ambient temperature rises above the temperature at which dry cooling of the heat exchange fluid is sufficient and means for cooling the water.

Smith, Gregory C. (Richland, WA); Tokarz, Richard D. (Richland, WA); Parry, Jr., Harvey L. (Richland, WA); Braun, Daniel J. (Richland, WA)

1980-01-01T23:59:59.000Z

224

HEATS: Thermal Energy Storage  

SciTech Connect

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

None

2012-01-01T23:59:59.000Z

225

2011 Heat Rate Improvement Conference  

Science Conference Proceedings (OSTI)

With the rising cost of fuel and the strong possibility of CO2 emissions regulations and limitations in the near future, utilities and power generation companies are focusing on power plant heat rate and performance. The Electric Power Research Institute (EPRI) 17th Heat Rate Improvement Conference is the latest in a series of meetings designed to assist attendees in addressing problems with power plant performance and in identifying cost-effective solutions for achieving and sustaining heat rate improve...

2011-03-28T23:59:59.000Z

226

Radiant Heating  

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

Radiant heating systems involve supplying heat directly to the floor or to panels in the walls or ceiling of a house. The systems depend largely on radiant heat transfer: the delivery of heat...

227

NGNP Process Heat Utilization: Liquid Metal Phase Change Heat Exchanger  

DOE Green Energy (OSTI)

One key long-standing issue that must be overcome to fully realize the successful growth of nuclear power is to determine other benefits of nuclear energy apart from meeting the electricity demands. The Next Generation Nuclear Plant (NGNP) will most likely be producing electricity and heat for the production of hydrogen and/or oil retrieval from oil sands and oil shale to help in our national pursuit of energy independence. For nuclear process heat to be utilized, intermediate heat exchange is required to transfer heat from the NGNP to the hydrogen plant or oil recovery field in the most efficient way possible. Development of nuclear reactor - process heat technology has intensified the interest in liquid metals as heat transfer media because of their ideal transport properties. Liquid metal heat exchangers are not new in practical applications. An important rational for considering liquid metals is the potential convective heat transfer is among the highest known. Thus explains the interest in liquid metals as coolant for intermediate heat exchange from NGNP. For process heat it is desired that, intermediate heat exchangers (IHX) transfer heat from the NGNP in the most efficient way possible. The production of electric power at higher efficiency via the Brayton Cycle, and hydrogen production, requires both heat at higher temperatures and high effectiveness compact heat exchangers to transfer heat to either the power or process cycle. Compact heat exchangers maximize the heat transfer surface area per volume of heat exchanger; this has the benefit of reducing heat exchanger size and heat losses. High temperature IHX design requirements are governed in part by the allowable temperature drop between the outlet and inlet of the NGNP. In order to improve the characteristics of heat transfer, liquid metal phase change heat exchangers may be more effective and efficient. This paper explores the overall heat transfer characteristics and pressure drop of the phase change heat exchanger with Na as the heat exchanger coolant. In order to design a very efficient and effective heat exchanger one must optimize the design such that we have a high heat transfer and a lower pressure drop, but there is always a trade-off between them. Based on NGNP operational parameters, a heat exchanger analysis with the sodium phase change will be presented to show that the heat exchanger has the potential for highly effective heat transfer, within a small volume at reasonable cost.

Piyush Sabharwall; Mike Patterson; Vivek Utgikar; Fred Gunnerson

2008-09-01T23:59:59.000Z

228

Heat Exchangers Fouling and Corrosion-A Detailed Investigation  

Science Conference Proceedings (OSTI)

Presentation Title, Aluminum Smelter Waste Heat Recovery Plant (Heat Exchangers Fouling and Corrosion-A Detailed Investigation). Author(s), Hadi Fanisalek, ...

229

Waste Heat Recovery from Industrial Smelting Exhaust Gas  

Science Conference Proceedings (OSTI)

For a cost efficient capture of more valuable heat (higher exergy), heat exchangers should operate on the exhaust gases upstream of the gas treatment plants.

230

Proceedings: Eighth International Conference on Cycle Chemistry in Fossil and Combined Cycle Plants with Heat Recovery Steam Generators, June 20-22, 2006, Calgary, Alberta Canada  

Science Conference Proceedings (OSTI)

Proper selection, application, and optimization of the cycle chemistry have long been recognized as integral to ensuring the highest possible levels of component availability and reliability in fossil-fired generating plant units. These proceedings of the Eighth EPRI International Conference on Cycle Chemistry in Fossil Plants address state-of-the-art practices in conventional and combined cycle plants. The content provides a worldwide perspective on cycle chemistry practices, and insight as to industry ...

2007-03-20T23:59:59.000Z

231

Modeling of Proposed Changes to SIUC Central Heating, Air-Conditioning, and Power Plant Incorporating Variable Frequency Drive (VFD) and High Efficiency Turbine.  

E-Print Network (OSTI)

??Currently, the Southern Illinois University Carbondale (SIUC) power plant produces steam at high pressure to drive a high pressure (HP) turbine to make a portion… (more)

Su, Heyin

2011-01-01T23:59:59.000Z

232

NETL: Development and Demonstration of Waste Heat Integration...  

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

performance of the integrated PC plant and CO2 capture process. The HES system is a heat exchanger that extracts waste heat from flue gas exiting the power plant's...

233

Nuclear Maintenance Applications Center: Heat Exchanger Maintenance Guide  

Science Conference Proceedings (OSTI)

This guide provides plant personnel with information on the operation, maintenance, and performance of heat exchangers. The contents of this guide will assist plant personnel in improving heat exchanger reliability, performance, and maintenance practices.

2009-06-14T23:59:59.000Z

234

District heating and cooling systems for communities through power plant retrofit distribution network. Phase 2. Final report, 1 March 1980-31 January 1984. Volume VII. Appendix C  

SciTech Connect

This volume contains: Hudson No. 2 Limited Retrofit Cost Estimates provided by Stone and Webster Engineering Corp. (SWEC); backup data and basis of estimate for SWEC Heater Plant and Gas Turbine Plant (Kearny No. 12) cost estimates; and Appendices - Analysis of Relevant Tax Laws.

Not Available

1984-01-31T23:59:59.000Z

235

Synergistic diffuser/heat-exchanger design  

E-Print Network (OSTI)

The theoretical and numerical evaluation of synergistic diffusing heat-exchanger design is presented. Motivation for this development is based on current diffuser and heat-exchange technologies in cogeneration plants, which ...

Lazzara, David S. (David Sergio), 1980-

2004-01-01T23:59:59.000Z

236

Heating Alloys  

Science Conference Proceedings (OSTI)

...are used in many varied applications--from small household appliances to large industrial process heating systems and furnaces. In appliances or industrial process heating, the heating elements are usually either open

237

Heating Systems  

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

A variety of heating technologies are available today. In addition to heat pumps, which are discussed separately, many homes and buildings use the following approaches:

238

Solar multiple optimization for a solar-only thermal power plant, using oil as heat transfer fluid in the parabolic trough collectors  

SciTech Connect

Usual size of parabolic trough solar thermal plants being built at present is approximately 50 MW{sub e}. Most of these plants do not have a thermal storage system for maintaining the power block performance at nominal conditions during long non-insolation periods. Because of that, a proper solar field size, with respect to the electric nominal power, is a fundamental choice. A too large field will be partially useless under high solar irradiance values whereas a small field will mainly make the power block to work at part-load conditions. This paper presents an economic optimization of the solar multiple for a solar-only parabolic trough plant, using neither hybridization nor thermal storage. Five parabolic trough plants have been considered, with the same parameters in the power block but different solar field sizes. Thermal performance for each solar power plant has been featured, both at nominal and part-load conditions. This characterization has been applied to perform a simulation in order to calculate the annual electricity produced by each of these plants. Once annual electric energy generation is known, levelized cost of energy (LCOE) for each plant is calculated, yielding a minimum LCOE value for a certain solar multiple value within the range considered. (author)

Montes, M.J. [E.T.S.I.Industriales - U.N.E.D., C/Juan del Rosal, 12, 28040 Madrid (Spain); Abanades, A.; Martinez-Val, J.M.; Valdes, M. [E.T.S.I.Industriales - U.P.M., C/Jose Gutierrez Abascal, 2, 28006 Madrid (Spain)

2009-12-15T23:59:59.000Z

239

Advanced Manufacturing Office: Process Heating Systems  

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

Boiler Tune-Up Energy-Efficiency Opportunity Assessment Tool for Chemical Plants and Refineries Mechanical Insulation Assessment and Design Calculators Combined Heat and Power...

240

Life cycle assessment of an energy-system with a superheated steam dryer integrated in a local district heat and power plant  

SciTech Connect

Life cycle assessment (LCA) is a method for analyzing and assessing the environmental impact of a material, product or service throughout the entire life cycle. In this study 100 GWh heat is to be demanded by a local heat district. A mixture of coal and wet biofuel is frequently used as fuel for steam generation (Case 1). A conversion of the mixed fuel to dried biofuel is proposed. In the district it is also estimated that it is possible for 4000 private houses to convert from oil to wood pellets. It is proposed that sustainable solution to the actual problem is to combine heat and power production together with an improvement in the quality of wood residues and manufacture of pellets. It is also proposed that a steam dryer is integrated to the system (Case 2). Most of the heat from the drying process is used by the municipal heating networks. In this study the environmental impact of the two cases is examined with LCA. Different valuation methods shows the Case 2 is an improvement over Case 1, but there is diversity in the magnitudes of environmental impact in the comparison of the cases. The differences depend particularly on how the emissions of CO{sub 2}, NO{sub x} and hydrocarbons are estimated. The impact of the organic compounds from the exhaust gas during the drying is estimated as low in all of the three used methods.

Bjoerk, H.; Rasmuson, A. [Chalmers Univ. of Technology, Goeteborg (Sweden). Dept. of Chemical Engineering Design

1999-07-01T23:59:59.000Z

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


241

Heat Rate Improvement Reference Manual  

Science Conference Proceedings (OSTI)

Performance optimization of fossil power plants is a high priority within the electric utilities in the new competitive environment. This manual can help utility engineers establish a heat rate improvement program.

1998-07-27T23:59:59.000Z

242

Coal stockpiles at electric power plants were above average ...  

U.S. Energy Information Administration (EIA)

... decline during summer and winter as power plants burn through stocks to meet peak electricity demand for heating and cooling, ... overall heating load in ...

243

Guidance for an Effective Heat Exchanger Program  

Science Conference Proceedings (OSTI)

Heat exchangers are used extensively in the nuclear power generation industry. Their proper operation is essential for reliable and safe nuclear plant operation. Increased emphasis on heat exchanger reliability at nuclear power plants has resulted in the development of engineering programs or equivalent actions to maintain the required thermal performance and structural integrity.

2011-10-04T23:59:59.000Z

244

Heat Conduction  

Science Conference Proceedings (OSTI)

Table 2   Differential equations for heat conduction in solids...conduction in solids General form with variable thermal properties General form with constant thermal properties General form, constant properties, without heat

245

Heat exchanger  

DOE Patents (OSTI)

A heat exchanger is provided having first and second fluid chambers for passing primary and secondary fluids. The chambers are spaced apart and have heat pipes extending from inside one chamber to inside the other chamber. A third chamber is provided for passing a purge fluid, and the heat pipe portion between the first and second chambers lies within the third chamber.

Daman, Ernest L. (Westfield, NJ); McCallister, Robert A. (Mountain Lakes, NJ)

1979-01-01T23:59:59.000Z

246

Ontario Power Generation's 250 kWe Class Atmospheric Solid Oxide Fuel Cell (SOFC): Combined Heat and Power (CHP) Power Plant  

Science Conference Proceedings (OSTI)

This case study documents the demonstration experiences and lessons learned from a 250 kW solid oxide fuel cell system in a combined heat and power demonstration operating on natural gas. The project was a collaboration initiative between Siemens Westinghouse Power Corporation (SWPC) and Ontario Power Generation (OPG) to install and test a first-of-a-kind SOFC system at OPG site in Toronto, Canada. This test and evaluation case study is one of several distributed generation project case studies under res...

2005-01-26T23:59:59.000Z

247

Heating Water with Solar Energy Costs Less at the Phoenix Federal Correctional Institution  

SciTech Connect

A large solar thermal system installed at the Phoenix Federal Correctional Institution (FCI) in 1998 heats water for the prison and costs less than buying electricity to heat that water. This renewable energy system provides 70% of the facility's annual hot water needs. The Federal Bureau of Prisons did not incur the up-front cost of this system because it was financed through an Energy Savings Performance Contract (ESPC). The ESPC payments are 10% less than the energy savings so that the prison saves an average of$6,700 per year, providing an immediate payback. The solar hot water system produces up to 50,000 gallons of hot water daily, enough to meet the needs of 1,250 inmates and staff who use the kitchen, shower, and laundry facilities.

2004-09-01T23:59:59.000Z

248

Heating Water with Solar Energy Costs Less at the Phoenix Federal Correctional Institution  

DOE Green Energy (OSTI)

A large solar thermal system installed at the Phoenix Federal Correctional Institution (FCI) in 1998 heats water for the prison and costs less than buying electricity to heat that water. This renewable energy system provides 70% of the facility's annual hot water needs. The Federal Bureau of Prisons did not incur the up-front cost of this system because it was financed through an Energy Savings Performance Contract (ESPC). The ESPC payments are 10% less than the energy savings so that the prison saves an average of$6,700 per year, providing an immediate payback. The solar hot water system produces up to 50,000 gallons of hot water daily, enough to meet the needs of 1,250 inmates and staff who use the kitchen, shower, and laundry facilities.

Not Available

2004-09-01T23:59:59.000Z

249

EPRI's Twelfth Heat Rate Improvement Conference Proceedings  

Science Conference Proceedings (OSTI)

The Twelfth Heat Rate Improvement Conference, sponsored by EPRI's Heat Rate and Cost Optimization Value Package, is the latest in a series of meetings designed to assist utilities in addressing problems with power plant performance and in identifying cost-effective solutions for achieving and maintaining heat rate improvement. The last conference was held in Baltimore in September 1998.

2001-01-22T23:59:59.000Z

250

Integrated Approach to Revamping Heat Exchangers Networks  

E-Print Network (OSTI)

A heat exchanger network constitutes the core of the plant energy systems interlinking the core process operation and the utility systems. This paper will illustrate an integrated approach for the revamp of a heat exchanger network by bringing together process simulation, pinch analysis and detailed heat exchanger design tools. The paper will illustrate the methodology using a refinery example.

Glass, K. E.; Dhole, V.; Wang, Y.

2002-04-01T23:59:59.000Z

251

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...

252

Total Space Heating Water Heating Cook-  

Gasoline and Diesel Fuel Update (EIA)

Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings* ... 222 194 17...

253

Total Space Heating Water Heating Cook-  

Gasoline and Diesel Fuel Update (EIA)

Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings ... 2,100...

254

Total Space Heating Water Heating Cook-  

Gasoline and Diesel Fuel Update (EIA)

Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings* ... 1,928 1,316...

255

Total Space Heating Water Heating Cook-  

Gasoline and Diesel Fuel Update (EIA)

Energy Consumption Survey: Energy End-Use Consumption Tables Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All...

256

Total Space Heating Water Heating Cook-  

Gasoline and Diesel Fuel Update (EIA)

Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings* ... 1,870 1,276...

257

Total Space Heating Water Heating Cook-  

Gasoline and Diesel Fuel Update (EIA)

Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings* ... 1,602 1,397...

258

Total Space Heating Water Heating Cook-  

Gasoline and Diesel Fuel Update (EIA)

Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings ... 2,037...

259

Hot tips on water heating  

SciTech Connect

Water-heater manufacturers responded to the call for energy conservation with innovations and efficiency standards for the home, business, and plant. Conventional tank-type water heaters offer better design and insulation, but the heat-pump water heater offers the highest efficiency. Available in add-on units and integral units, they now represent up to 40% of manufacturers' sales. Other advances are the desuperheater devices which recapture air-conditioner waste heat, solar-water-heating systems, instantaneous water heaters, and industrial heat-recovery systems for process water. 1 figure. (DCK)

Forker, J.

1982-03-01T23:59:59.000Z

260

Solar industrial process heat  

DOE Green Energy (OSTI)

The aim of the assessment reported is to candidly examine the contribution that solar industrial process heat (SIPH) is realistically able to make in the near and long-term energy futures of the United States. The performance history of government and privately funded SIPH demonstration programs, 15 of which are briefly summarized, and the present status of SIPH technology are discussed. The technical and performance characteristics of solar industrial process heat plants and equipment are reviewed, as well as evaluating how the operating experience of over a dozen SIPH demonstration projects is influencing institutional acceptance and economoc projections. Implications for domestic energy policy and international implications are briefly discussed. (LEW)

Lumsdaine, E.

1981-04-01T23:59:59.000Z

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


261

2007 EPRI Heat Rate Improvement Conference Proceedings  

Science Conference Proceedings (OSTI)

Due to the rising cost of fuel and the growing possibility of carbon taxes in the not-too-distant future, utilities are once again focusing on the heat rate and performance of coal-fired power plants. The fifteenth Heat Rate Improvement Conference is the latest in this series of meetings designed to assist utilities in addressing problems with power plant performance and in identifying cost-effective solutions for achieving and maintaining heat rate improvement.

2007-03-30T23:59:59.000Z

262

Proceedings 2013 Heat Rate Improvement Conference  

Science Conference Proceedings (OSTI)

With the rising cost of fuel and the strong possibility of CO2 emissions regulations and limitations in the near future, utilities and power generation companies are focusing on power plant heat rate and performance. The 18th Heat Rate Improvement Conference is the latest in a series of meetings designed to assist attendees in addressing problems with power plant performance and identifying cost-effective solutions for achieving and sustaining heat rate ...

2013-04-05T23:59:59.000Z

263

Naval Nuclear Propulsion Plants | National Nuclear Security Administra...  

National Nuclear Security Administration (NNSA)

Naval Nuclear Propulsion Plants In naval nuclear propulsion plants, fissioning of uranium atoms in the reactor core produces heat. Because the fission process also produces...

264

Zagreb east TE-TO feasibility study for repowering of thermal power and heating plant for Hrvatska Elektroprivreda: Final report. Export trade information  

Science Conference Proceedings (OSTI)

The report assesses the feasibility of repowering or building new generating facilities at the TE-TO plant in Zagreb which generates more than half of the Zagreb area`s power and 13% of all power generated in Croatia. The contents include the following: (1) executive summary; (2) design basis; (3) screening evaluations; (4) preliminary design of preferred options; (5) detailed cost estimates and economic analysis; (6) conceptual design; (7) financial analysis; (8) environmental evaluation; (9) risk assessment; (10) conclusions. also included are tables 1 through 9, figures a through j, and exhibits 1 through 8.

NONE

1997-04-01T23:59:59.000Z

265

Applications of Commercial Heat Pump Water Heaters in Hot, Humid Climates  

E-Print Network (OSTI)

Heat pump water heaters can provide high-efficiency water heating and supplemental space cooling and dehumidification in commercial buildings throughout the United States. They are particularly attractive in hot, humid areas where cooling loads are high and the cooling season is long. Because commercial kitchens and laundry facilities have simultaneous water heating and cooling needs, they are excellent applications for heat pump water heaters. Typical heat pump water heaters (HPWHs) operate at an annual coefficient of performance (COP) of approximately 3.0 for water heating alone. Space conditioning benefits of about 0.67 Btu are delivered at no additional cost for each Btu of water heating output. In situations in which this cooling output is valued, the dual thermal outputs for heating and cooling make heat pump water heaters particularly attractive. The comfort value of added cooling in overheated facilities and the resulting increase in employee and customer satisfaction are frequently cited as additional benefits. This paper describes currently available heat pump water heating equipment and offers guidelines for successful applications in commercial facilities. The results of field test programs involving more than 100 units in Alabama, Georgia, Mississippi, Tennessee, South Carolina, and other areas are incorporated. Initial conclusions are drawn from a reliability database, and interviews with utility applications specialists and manufacturers are discussed. Design tools are reviewed, including a new comprehensive computer simulation model. Emphasis is placed on identifying sound candidates for installations and on application and design considerations. A brief survey is provided of environmental implications of heat pump water heaters and new developments in heat pump water heater equipment.

Johnson, K. F.; Shedd, A. C.

1992-05-01T23:59:59.000Z

266

Testing thermocline filler materials and molten-salt heat transfer fluids for thermal energy storage systems used in parabolic trough solar power plants.  

DOE Green Energy (OSTI)

Parabolic trough power systems that utilize concentrated solar energy to generate electricity are a proven technology. Industry and laboratory research efforts are now focusing on integration of thermal energy storage as a viable means to enhance dispatchability of concentrated solar energy. One option to significantly reduce costs is to use thermocline storage systems, low-cost filler materials as the primary thermal storage medium, and molten nitrate salts as the direct heat transfer fluid. Prior thermocline evaluations and thermal cycling tests at the Sandia National Laboratories' National Solar Thermal Test Facility identified quartzite rock and silica sand as potential filler materials. An expanded series of isothermal and thermal cycling experiments were planned and implemented to extend those studies in order to demonstrate the durability of these filler materials in molten nitrate salts over a range of operating temperatures for extended timeframes. Upon test completion, careful analyses of filler material samples, as well as the molten salt, were conducted to assess long-term durability and degradation mechanisms in these test conditions. Analysis results demonstrate that the quartzite rock and silica sand appear able to withstand the molten salt environment quite well. No significant deterioration that would impact the performance or operability of a thermocline thermal energy storage system was evident. Therefore, additional studies of the thermocline concept can continue armed with confidence that appropriate filler materials have been identified for the intended application.

Kelly, Michael James; Hlava, Paul Frank; Brosseau, Douglas A.

2004-07-01T23:59:59.000Z

267

Definition: Heat exchanger | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Heat exchanger Jump to: navigation, search Dictionary.png Heat exchanger A device for transferring thermal energy (heat) from one fluid (liquid or gas) to another, when the two fluids are physically separated; such as a radiator.[1][2] View on Wikipedia Wikipedia Definition A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. The media may be separated by a solid wall to prevent mixing or they may be in direct contact. They are widely used in space heating, refrigeration, air conditioning, power plants, chemical plants, petrochemical plants, petroleum refineries [bp, shell, sasol], natural gas processing, and sewage treatment. The classic example

268

Heat transfer. [heat transfer roller employing a heat pipe  

SciTech Connect

A heat transfer roller embodying a heat pipe is disclosed. The heat pipe is mounted on a shaft, and the shaft is adapted for rotation on its axis.

Sarcia, D.S.

1978-05-23T23:59:59.000Z

269

Heat Recovery Boilers for Process Applications  

E-Print Network (OSTI)

Heat recovery boilers are widely used in process plants for recovering energy from various waste gas streams, either from the consideration of process or of economy. Sulfuric, as well as nitric, acid plant heat recovery boilers are examples of the use of heat recovery due primarily to process considerations. On the other hand, cost and payback are main considerations in the case of gas turbine and incineration plants, where large quantities of gases are exhausted at temperatures varying from 800°F to 1800°F. This gas, when recovered, can result in a large energy savings and steam production. This paper attempts to outline some of the engineering considerations in the design of heat recovery boilers for turbine exhaust applications (combined cycle, cogeneration mode), incineration plants (solid waste, fume) and chemical plants (reformer, sulfuric acid, nitric acid).

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

1985-05-01T23:59:59.000Z

270

Sauget Plant Flare Gas Reduction Project  

E-Print Network (OSTI)

Empirical analysis of stack gas heating value allowed the Afton Chemical Corporation Sauget Plant to reduce natural gas flow to its process flares by about 50% while maintaining the EPA-required minimum heating value of the gas streams.

Ratkowski, D. P.

2007-01-01T23:59:59.000Z

271

Heat Stroke  

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

stress, from exertion or hot environments, places stress, from exertion or hot environments, places workers at risk for illnesses such as heat stroke, heat exhaustion, or heat cramps. Heat Stroke A condition that occurs when the body becomes unable to control its temperature, and can cause death or permanent disability. Symptoms â–  High body temperature â–  Confusion â–  Loss of coordination â–  Hot, dry skin or profuse sweating â–  Throbbing headache â–  Seizures, coma First Aid â–  Request immediate medical assistance. â–  Move the worker to a cool, shaded area. â–  Remove excess clothing and apply cool water to their body. Heat Exhaustion The body's response to an excessive loss of water and salt, usually through sweating. Symptoms â–  Rapid heart beat â–  Heavy sweating â–  Extreme weakness or fatigue â– 

272

Heat reclaimer  

Science Conference Proceedings (OSTI)

A device for reclaiming heat from stove pipes and the like. A semi-circular shaped hollow enclosed housing with a highly thermal-conductive concave surface is mounted contactingly to surround approximately one-half of the circumference of the stove pipe. The concave surface is formed to contact the pipe at a maximum number of points along that surface. The hollow interior of the housing contains thin multi-surfaced projections which are integral with the concave surface and conductively transfer heat from the stove pipe and concave surface to heat the air in the housing. A fan blower is attached via an air conduit to an entrance opening in the housing. When turned on, the blower pushes the heated interior air out a plurality of air exit openings in the ends of the housing and brings in lower temperature outside air for heating.

Parham, F.

1985-04-09T23:59:59.000Z

273

Energy Basics: Heat Pump Systems  

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

Systems Air-Source Heat Pumps Ductless Mini-Split Heat Pumps Absorption Heat Pumps Geothermal Heat Pumps Supporting Equipment for Heating & Cooling Systems Water Heating Heat...

274

Heat pipe theory and practice: a sourcebook  

SciTech Connect

An introduction to heat pipe operating principles, types, and applications followed by a comprehensive treatment of heat pipe theory, design, and manufacture are presented. The organization of heat pipe theory provides parallel treatment of the fundamental laws of thermodynamics, heat transfer, fluid mechanics, and materials science during heat pipe analysis. For the problem-solving convenience of practicing engineers, design procedures are developed summarizing theoretical information. Methods of summarizing voluminous research information are presented in detail. Current practices in the manufacture of heat pipes are described. Current and potential applications of the heat pipe to energy systems discussed are: heat exchangers, heat recovery for HVAC systems, residential buildings, industrial processes, gasification plants, and thermal storage subsystems.

Chi, S.W.

1976-01-01T23:59:59.000Z

275

Heat collector  

DOE Patents (OSTI)

A heat collector and method suitable for efficiently and cheaply collecting solar and other thermal energy are provided. The collector employs a heat pipe in a gravity-assist mode and is not evacuated. The collector has many advantages, some of which include ease of assembly, reduced structural stresses on the heat pipe enclosure, and a low total materials cost requirement. Natural convective forces drive the collector, which after startup operates entirely passively due in part to differences in molecular weights of gaseous components within the collector.

Merrigan, Michael A. (Santa Cruz, NM)

1984-01-01T23:59:59.000Z

276

Heat collector  

DOE Patents (OSTI)

A heat collector and method suitable for efficiently and cheaply collecting solar and other thermal energy are provided. The collector employs a heat pipe in a gravity-assist mode and is not evacuated. The collector has many advantages, some of which include ease of assembly, reduced structural stresses on the heat pipe enclosure, and a low total materials cost requirement. Natural convective forces drive the collector, which after startup operates entirely passively due in part to differences in molecular weights of gaseous components within the collector.

Merrigan, M.A.

1981-06-29T23:59:59.000Z

277

Corrosive resistant heat exchanger  

DOE Patents (OSTI)

A corrosive and errosive resistant heat exchanger which recovers heat from a contaminated heat stream. The heat exchanger utilizes a boundary layer of innocuous gas, which is continuously replenished, to protect the heat exchanger surface from the hot contaminated gas. The innocuous gas is conveyed through ducts or perforations in the heat exchanger wall. Heat from the heat stream is transferred by radiation to the heat exchanger wall. Heat is removed from the outer heat exchanger wall by a heat recovery medium.

Richlen, Scott L. (Annandale, VA)

1989-01-01T23:59:59.000Z

278

Operational and maintenance instruction manual for the Ingham County Geriatric Medical Care Facility solar water-heating system  

DOE Green Energy (OSTI)

The Ingham County solar system consists of approximately 10,000 square feet of solar collectors connected in a closed configuration loop. The primary loop solution is a 1:12 mixture of water and propylene glycol which flows through the tube side of a heat exchanger connected to the primary storage tank. The heat energy which is supplied to the primary storage tank is subsequently used to preheat the temperature of the laundry water, kitchen water, and domestic potable water. Included in this report are: detailed drawings and flow chart; operational methodology; preventive maintenance instructions; general instructions and safety precautions; and a corrective maintenance and tabulation of failure modes. Appendices include: manufacturers technical manual and component specifications; IBM data sensors and responsibilities; digital county monitor operations manual; and on site monitor operations manual. Reference CAPE-2834. (LS)

Not Available

1983-07-29T23:59:59.000Z

279

Solar water-heating system for the Ingham County geriatric medical care facility, Okemos, Michigan. Operational and maintenance instruction manual  

DOE Green Energy (OSTI)

The objectives of the Ingham County Solar Project include: the demonstration of a major operational supplement to fossil fuels, thereby reducing the demand for non-renewable energy sources, demonstration of the economic and technical feasibility of solar systems as an important energy supplement over the expected life of the building, and to encourage Michigan industry to produce and incorporate solar systems in their own facility. The Ingham County solar system consists of approximately 10,000 square feet of solar collectors connected in a closed configuration loop. The primary loop solution is a mixture of water and propylene glycol which flows through the tube side of a heat exchanger connected to the primary storage tank. The heat energy which is supplied to the primary storage tank is subsequently utilized to increase the temperature of the laundry water, kitchen water, and domestic potable water.

Not Available

1983-07-29T23:59:59.000Z

280

Heat reclaimer  

SciTech Connect

An apparatus for reclaiming heat from the discharge gas from a combustion fuel heating unit, which has: inlet and outlet sections; an expansion section whose circumference gradually increases in the direction of flow, thereby providing an increased area for heat transfer; flow splitter plates which lie within and act in conjunction with the expansion section wall to form flow compartments, which flow splitter plates and expansion section wall have a slope, with respect to the centroidal axis of the flow compartment not exceeding 0.1228, which geometry prevents a separation of the flow from the enclosing walls, thereby increasing heat transfer and maintaining the drafting function; and a reduction section which converges the flow to the outlet section.

Horkey, E.J.

1982-06-29T23:59:59.000Z

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


281

HEAT EXCHANGER  

DOE Patents (OSTI)

A heat exchanger is designed for use in the transfer of heat between a radioactive fiuid and a non-radioactive fiuid. The exchanger employs a removable section containing the non-hazardous fluid extending into the section designed to contain the radioactive fluid. The removable section is provided with a construction to cancel out thermal stresses. The stationary section is pressurized to prevent leakage of the radioactive fiuid and to maintain a safe, desirable level for this fiuid. (AEC)

Fox, T.H. III; Richey, T. Jr.; Winders, G.R.

1962-10-23T23:59:59.000Z

282

CRBRP decay heat removal systems  

SciTech Connect

The Decay Heat Removal Systems for the Clinch River Breeder Reactor Plant (CRBRP) are designed to adequately remove sensible and decay heat from the reactor following normal shutdown, operational occurrences, and postulated accidents on both a short term and a long term basis. The Decay Heat Removal Systems are composed of the Main Heat Transport System, the Main Condenser and Feedwater System, the Steam Generator Auxiliary Heat Removal System (SGAHRS), and the Direct Heat Removal Service (DHRS). The overall design of the CRBRP Decay Heat Removal Systems and the operation under normal and off-normal conditions is examined. The redundancies of the system design, such as the four decay heat removal paths, the emergency diesel power supplies, and the auxiliary feedwater pumps, and the diversities of the design such as forced circulation/natural circulation and AC Power/DC Power are presented. In addition to overall design and system capabilities, the detailed designs for the Protected Air Cooled Condensers (PACC) and the Air Blast Heat Exchangers (ABHX) are presented.

Hottel, R.E.; Louison, R.; Boardman, C.E.; Kiley, M.J.

1977-01-01T23:59:59.000Z

283

Sustainable Heat Power Europe GmbH formerly Solar Heat Power Europe GmbH |  

Open Energy Info (EERE)

Heat Power Europe GmbH formerly Solar Heat Power Europe GmbH Heat Power Europe GmbH formerly Solar Heat Power Europe GmbH Jump to: navigation, search Name Sustainable Heat & Power Europe GmbH (formerly Solar Heat & Power Europe GmbH) Place Hamburg, Schleswig-Holstein, Germany Sector Solar Product Engineering company involved in the project development, design and construction of solar thermal, PV and biogas power plants. References Sustainable Heat & Power Europe GmbH (formerly Solar Heat & Power Europe GmbH)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Sustainable Heat & Power Europe GmbH (formerly Solar Heat & Power Europe GmbH) is a company located in Hamburg, Schleswig-Holstein, Germany .

284

Save Energy Now in Your Process Heating Systems  

Science Conference Proceedings (OSTI)

This DOE Industrial Technologies Program fact sheet describes how manufacturing plants can save energy and money by making energy efficiency improvements to their industrial process heating systems.

Not Available

2006-01-01T23:59:59.000Z

285

Advanced Heat Resistant Austenitic Stainless Steel and Composite ...  

Science Conference Proceedings (OSTI)

... plants: newly developed advanced heat resistant austenitic stainless steels for A-USC boilers and so called composite tubes for the IGCC gasification process.

286

Table 5.14c Heat Content of Petroleum Consumption ...  

U.S. Energy Information Administration (EIA)

1 Electricity-only and combined-heat-and-power (CHP) plants within the NAICS 22 category whose primary business is to sell electricity, or electricity ...

287

Evaluation of Peak Heat Release Rates in Electrical Cabinet Fires  

Science Conference Proceedings (OSTI)

The purpose of this report is to reanalyze the peak heat release rates (HRRs) from fires occurring in electrical cabinets of nuclear power plants.

2012-02-23T23:59:59.000Z

288

Design with Constructal Theory: Steam Generators, Turbines and Heat Exchangers.  

E-Print Network (OSTI)

?? This dissertation shows that the architecture of steam generators, steam turbines and heat exchangers for power plants can be predicted on the basis of… (more)

Kim, Yong Sung

2010-01-01T23:59:59.000Z

289

Creep Behavior of High Temperature Alloys for Intermediate Heat ...  

Science Conference Proceedings (OSTI)

Presentation Title, Creep Behavior of High Temperature Alloys for Intermediate Heat Exchanger in Next Generation Nuclear Plant. Author(s), Xingshuo Wen, ...

290

Waste Heat Recovery Trial from Aluminum Reduction Cell Exhaust ...  

Science Conference Proceedings (OSTI)

By using heat exchangers with in-line and staggered tube arrangements placed before fume treatment plant (FTP) we will be able to recover enough amount of ...

291

Design Principle and Strengthening of Advanced Austenitic Heat ...  

Science Conference Proceedings (OSTI)

Abstract Scope, Unprecedented austenitic heat resistant steels strengthened by ... for application to tubes and pipes of advanced thermal power plants (A-USC).

292

A Continuous Solar Thermochemical Hydrogen Production Plant Design  

E-Print Network (OSTI)

2,600,000 m 2 solar thermal power plant called Ivanpah SolarThermal Power? ” Proceedings of VGB Congress Power Plants,thermal uses heat from the sun to help drive a power or thermochemical plant.

Luc, Wesley Wai

293

Industrial and Commercial Heat Pump Applications in the United States  

E-Print Network (OSTI)

The energy crisis of 1973 accelerated the development of large-scale heat pumps in the United States. Since that time, the commercial, institutional, and industrial applications of heat pumps for waste heat recovery have expanded. This paper reviews the trends in heat pump cycle developments and discusses both the closed vapor compression cycle and refrigerants most commonly used and the open-cycle mechanical vapor compression heat pumps. Waste heat sources, heat loads served by heat pumps--and typical applications using heat pumps for large-scale space heating, domestic water heating, and industrial process water heating-- are discussed. Typical installations include commercial applications in hotels, high-rise apartments and condominiums, and office buildings. Institutional installations discussed include hospitals, universities, wastewater treatment plants, and airport terminals. Industrial applications largely center on food processing industries, feedwater heating, metal fabricating, and other industries. Reference is also made to other applications and alternative energy sources now gaining acceptance, including groundwater/geothermal water.

Niess, R. C.

1986-06-01T23:59:59.000Z

294

Brain emotional learning based intelligent controller applied to neurofuzzy model of micro-heat exchanger  

Science Conference Proceedings (OSTI)

In this paper, an intelligent controller is applied to govern the dynamics of electrically heated micro-heat exchanger plant. First, the dynamics of the micro-heat exchanger, which acts as a nonlinear plant, is identified using a neurofuzzy network. ... Keywords: Emotion based learning, Heat exchanger, Intelligent control, Locally linear models, Neurofuzzy models, Nonlinear system identification

Hossein Rouhani; Mahdi Jalili; Babak N. Araabi; Wolfgang Eppler; Caro Lucas

2007-04-01T23:59:59.000Z

295

Surgut steam power plant: Block 1, unit 1 reconstruction feasibility study. Volume 2. Export trade information  

Science Conference Proceedings (OSTI)

Project Description; Work Tasks: Review Plant Data; Power Cycle, Heat Balance Study; Heat Cycle Screening and Selection; Selected Heat Cycle Discussion; Heat Balance Summary Data and Diagram; Plant Conceptual Engineering; Major Mechanical System Descriptions; Main, Reheat, District Heating Steam Systems; Feedwater and Condensate System; HRSG Blowdown System; Chemical Feed System; Auxiliary Cooling System; Natural Gas Fuel System; Piping System; and Flue Gas System.

Not Available

1993-11-24T23:59:59.000Z

296

Solar assisted heat pump on air collectors: A simulation tool  

Science Conference Proceedings (OSTI)

The heating system of the bioclimatic building of the Greek National Centre for Renewable Energy Sources (CRES) comprises two heating plants: the first one includes an air source heat pump, Solar Air Collectors (SACs) and a heat distribution system (comprising a fan coil unit network); the second one is, mainly, a geothermal heat pump unit to cover the ground floor thermal needs. The SAC configuration as well as the fraction of the building heating load covered by the heating plant are assessed in two operation modes; the direct (hot air from the collectors is supplied directly to the heated space) and the indirect mode (warm air from the SAC or its mixture with ambient air is not supplied directly to the heated space but indirectly into the evaporator of the air source heat pump). The technique of the indirect mode of heating aims at maximizing the efficiency of the SAC, saving electrical power consumed by the compressor of the heat pump, and therefore, at optimizing the coefficient of performance (COP) of the heat pump due to the increased intake of ambient thermal energy by means of the SAC. Results are given for three research objectives: assessment of the heat pump efficiency whether in direct or indirect heating mode; Assessment of the overall heating plant efficiency on a daily or hourly basis; Assessment of the credibility of the suggested simulation model TSAGAIR by comparing its results with the TRNSYS ones. (author)

Karagiorgas, Michalis; Galatis, Kostas; Tsagouri, Manolis [Department of Mechanical Engineering Educators, ASPETE, N. Iraklio, GR 14121 (Greece); Tsoutsos, Theocharis [Environmental Engineering Dept., Technical University of Crete, Technical University Campus, GR 73100, Chania (Greece); Botzios-Valaskakis, Aristotelis [Centre for Renewable Energy Sources (CRES), 19th km Marathon Ave., GR 19001, Pikermi (Greece)

2010-01-15T23:59:59.000Z

297

Optimal Scheduling of Cogeneration Plants  

E-Print Network (OSTI)

A cogeneration plant, feeding its output water into a district-heating grid, may include several types of energy producing units. The most important being the cogeneration unit, which produces both heat and electricity. Most plants also have a heat water storage. Finding the optimal production of both heat and electricity and the optimal use of the storage is a difficult optimization problem. This paper formulates a general approach for the mathematical modeling of a cogeneration plant. The model objective function is nonlinear, with nonlinear constraints. Internal plant temperatures, mass flows, storage losses, minimal up and down times and time depending start-up costs are considered. The unit commitment, i.e. the units on and off modes, is found with an algorithm based on Lagrangian relaxation. The dual search direction is given by the subgradient method and the step length by the Polyak rule II. The economic dispatch problem, i.e. the problem of determining the units production giv...

Erik Dotzauer; Kenneth Holmström

1997-01-01T23:59:59.000Z

298

Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 2, Fluorescent lamp ballasts, television sets, room air conditioners, and kitchen ranges and ovens  

SciTech Connect

This document is divided into ``volumes`` B through E, dealing with individual classes of consumer products. Chapters in each present engineering analysis, base case forecasts, projected national impacts of standards, life-cycle costs and payback periods, impacts on manufacturers, impacts of standards on electric utilities, and environmental effects. Supporting appendices are included.

Not Available

1993-11-01T23:59:59.000Z

299

Combined Heat and Power | Open Energy Information  

Open Energy Info (EERE)

Combined Heat and Power Combined Heat and Power Jump to: navigation, search All power plants release a certain amount of heat during electricity generation. This heat can be used to serve thermal loads, such as building heating and hot water requirements. The simultaneous production of electrical (or mechanical) and useful thermal power from a single source is referred to as a combined heat and power (CHP) process, or cogeneration. Contents 1 Combined Heat and Power Basics 2 Fuel Types 2.1 Rural Resources 2.2 Urban Resources 3 CHP Technologies 3.1 Steam Turbine 3.2 Gas Turbine 3.3 Microturbine 3.4 Reciprocating Engine 4 Example CHP Systems[7] 4.1 University of Missouri (MU) 4.2 Princeton University 4.3 University of Iowa 4.4 Cornell University 5 Glossary 6 References Combined Heat and Power Basics

300

PIA - Northeast Home Heating Oil Reserve System (Heating Oil...  

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

Northeast Home Heating Oil Reserve System (Heating Oil) PIA - Northeast Home Heating Oil Reserve System (Heating Oil) PIA - Northeast Home Heating Oil Reserve System (Heating Oil)...

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


301

PIA - Northeast Home Heating Oil Reserve System (Heating Oil...  

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

PIA - Northeast Home Heating Oil Reserve System (Heating Oil) PIA - Northeast Home Heating Oil Reserve System (Heating Oil) PIA - Northeast Home Heating Oil Reserve System (Heating...

302

Thermodynamic Efficiency of Heat Exchange Devices  

E-Print Network (OSTI)

The continued rise in the cost of energy 'has it imperative to augment the usual heat flow analyses for power plants, refineries, chemical plants and other energy intensive industries by adding analyses of available energy flow and device irreversibilities. The reclamation of what was formerly 'waste heat' by using additional, or more efficient, equipment has become not only economically feasible, but sometimes essential. A thermodynamic efficiency based on the second law of thermodynamics is defined for heat exchange devices. The efficiency can be simply written in terms of the mean absolute temperature levels of the two fluids exchanging heat, and an appropriate environment temperature. It is also shown that for a given ratio of hot to cold inlet temperatures, the efficiency and effectiveness for particular heat exchange configurations are related. Conclusions regarding the effect of stream temperatures on the efficiency of various types of exchangers are made. The concept is applied to typical heat exchange cases to demonstrate its applicability and sensitivity.

Witte, L. C.; Shamsundar, N.

1982-01-01T23:59:59.000Z

303

GUIDELINES FOR CERTIFICATION OF COMBINED HEAT AND POWER SYSTEMS  

E-Print Network (OSTI)

Description 1 CHP System Name 2 CEC Plant ID 3 EIA Plant ID 4 Qualifying Facility ID (if applicable) 5 Thermal, and emissions related to combined heat and power (CHP) system power plant operations. This information is used the power plant is first reported on Form CEC-2843. The respondent should use the Commission assigned code

304

HEAT GENERATION  

DOE Patents (OSTI)

Heat is generated by the utilization of high energy neutrons produced as by nuclear reactions between hydrogen isotopes in a blanket zone containing lithium, a neutron moderator, and uranium and/or thorium effective to achieve multtplicatton of the high energy neutron. The rnultiplied and moderated neutrons produced react further with lithium-6 to produce tritium in the blanket. Thermal neutron fissionable materials are also produced and consumed in situ in the blanket zone. The heat produced by the aggregate of the various nuclear reactions is then withdrawn from the blanket zone to be used or otherwise disposed externally. (AEC)

Imhoff, D.H.; Harker, W.H.

1963-12-01T23:59:59.000Z

305

Efficiency combined cycle power plant  

SciTech Connect

This patent describes a method of operating a combined cycle power plant. It comprises: flowing exhaust gas from a combustion turbine through a heat recovery steam generator (HRSG); flowing feed water through an economizer section of the HRSG at a flow rate and providing heated feed water; flowing a first portion of the heated feed water through an evaporator section of the HRSG and producing saturated steam at a production rate, the flow rate of the feed water through the economizer section being greater than required to sustain the production rate of steam in the evaporator section; flowing fuel for the turbine through a heat exchanger; and, flowing a second portion of the heated feed water provided by the economizer section through the heat exchanger then to an inlet of the economizer section, thereby heating the fuel flowing through the heat exchanger.

Pavel, J.; Meyers, G.A.; Baldwin, T.S.

1990-06-12T23:59:59.000Z

306

Energy Basics: Absorption Heat Pumps  

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

Systems Air-Source Heat Pumps Ductless Mini-Split Heat Pumps Absorption Heat Pumps Geothermal Heat Pumps Supporting Equipment for Heating & Cooling Systems Water Heating...

307

Energy Basics: Geothermal Heat Pumps  

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

Systems Air-Source Heat Pumps Ductless Mini-Split Heat Pumps Absorption Heat Pumps Geothermal Heat Pumps Supporting Equipment for Heating & Cooling Systems Water Heating...

308

New and Existing Buildings Heating and Cooling Opportunities: Dedicated Heat Recovery Chiller  

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

Langfitt Langfitt U S Department of State Overseas Buildings Operations Mechanical Engineering Division *Engineers are working Harder AND Smarter *New Energy Economy *Heating Is Where The Opportunity Is  39% of total US energy goes into non-residential buildings.  Gas for heating is about 60% of energy used in a building  Gas for heating is at least 25% of total energy used in the US. Heat Generation System Heat Disposal System What's Wrong With This Picture? Keep the heat IN the system Don't run main plant equipment until necessary ! Less rejected heat Less gas consumption High Temp >160F with conventional boilers Hydronic heating... condensing style modular boilers. The entire heating system... designed for low temperature water, recommend maximum temperature of 135ºF.

309

A performance data network for solar process heat systems  

DOE Green Energy (OSTI)

A solar process heat (SPH) data network has been developed to access remote-site performance data from operational solar heat systems. Each SPH system in the data network is outfitted with monitoring equipment and a datalogger. The datalogger is accessed via modem from the data network computer at the National Renewable Energy Laboratory (NREL). The dataloggers collect both ten-minute and hourly data and download it to the data network every 24-hours for archiving, processing, and plotting. The system data collected includes energy delivered (fluid temperatures and flow rates) and site meteorological conditions, such as solar insolation and ambient temperature. The SPH performance data network was created for collecting performance data from SPH systems that are serving in industrial applications or from systems using technologies that show promise for industrial applications. The network will be used to identify areas of SPH technology needing further development, to correlate computer models with actual performance, and to improve the credibility of SPH technology. The SPH data network also provides a centralized bank of user-friendly performance data that will give prospective SPH users an indication of how actual systems perform. There are currently three systems being monitored and archived under the SPH data network: two are parabolic trough systems and the third is a flat-plate system. The two trough systems both heat water for prisons; the hot water is used for personal hygiene, kitchen operations, and laundry. The flat plate system heats water for meat processing at a slaughter house. We plan to connect another parabolic trough system to the network during the first months of 1996. We continue to look for good examples of systems using other types of collector technologies and systems serving new applications (such as absorption chilling) to include in the SPH performance data network.

Barker, G.; Hale, M.J.

1996-03-01T23:59:59.000Z

310

Heat reclaimer  

Science Conference Proceedings (OSTI)

A heat reclaimer for the exhaust flue of a heating unit comprises a housing having an air input space, an air output space, and an exhaust space, with a plurality of tubes connected between and communicating the air input space with the air output space and extending through the exhaust space. The exhaust flue of the heating unit is connected into the exhaust space of the housing and an exhaust output is connected to the housing extending from the exhaust space for venting exhaust coming from the heater into the exhaust space to a chimney, for example. A float or level switch is connected to the housing near the bottom of the exhaust space for switching, for example, an alarm if water accumulates in the exhaust space from condensed water vapor in the exhaust. At least one hole is also provided in the housing above the level of the float switch to permit condensed water to leave the exhaust space. The hole is provided in case the float switch clogs with soot. A wiping device may also be provided in the exhaust space for wiping the exterior surfaces of the tubes and removing films of water and soot which might accumulate thereon and reduce their heat transfer capacity.

Bellaff, L.

1981-10-20T23:59:59.000Z

311

Heat exchanger  

DOE Patents (OSTI)

A heat exchanger of the straight tube type in which different rates of thermal expansion between the straight tubes and the supply pipes furnishing fluid to those tubes do not result in tube failures. The supply pipes each contain a section which is of helical configuration.

Wolowodiuk, Walter (New Providence, NJ)

1976-01-06T23:59:59.000Z

312

Projected Regional Impacts of Appliance Efficiency Standards for the U.S. Residential Sector  

E-Print Network (OSTI)

Heating Equipment, Mobile Home Furnaces, Kitchen Ranges and Ovens,heating, dishwasher motor, domes dryer, gas range and gas oven

Koomey, J.G.

2010-01-01T23:59:59.000Z

313

Control system for cogenerative power plants  

Science Conference Proceedings (OSTI)

The paper presents a distributed control system for the realization of cogenerative supply of electricity and heat and, in given case, for their combination with waste heat recovery, particularly in combined (gas-steam) cycle industrial power plants. ... Keywords: cogenerative gas power plant, control of distributed parameter systems, distribution management system, electric power systems, optimization, process control, real time systems, simulation

Florin Hartescu

2008-08-01T23:59:59.000Z

314

Plantings that save energy  

SciTech Connect

In this 12th of a series on urban forestry, homeowners and community planners are offered practical guidance in selection of landscape plantings which will significantly reduce wind velocity and heat loss from homes in winter and reduce energy costs for air conditioning in summer.

Heisler, G.M.; DeWalle, D.R.

1984-09-01T23:59:59.000Z

315

Solar process heat technology in action: The process hot water system at the California Correctional Institution at Tehachapi  

DOE Green Energy (OSTI)

Solar process heat technology relates to solar thermal energy systems for industry, commerce, and government. Applications include water preheating and heating, steam generation, process hot air, ventilation air heating, and refrigeration. Solar process heat systems are available for commercial use. At the present time, however, they are economically viable only in niche markets. This paper describes a functioning system in one such market. The California Department of Corrections (CDOC), which operates correctional facilities for the state of California, uses a solar system for providing hot water and space heating at the California Correctional Institute at Tehachapi (CCI/Tehachapi). CCI/Tehachapi is a 5100-inmate facility. The CDOC does not own the solar system. Rather, it buys energy from private investors who own the solar system located on CCI/Tehachapi property; this arrangement is part of a long-term energy purchase agreement. United Solar Technologies (UST) of Olympia Washington is the system operator. The solar system, which began operating in the fall of 1990, utilizes 2677 m{sup 2} (28,800 ft{sup 2}) of parabolic through solar concentrators. Thermal energy collected by the system is used to generate hot water for showers, kitchen operations, and laundry functions. Thermal energy collected by the system is also used for space heating. At peak operating conditions, the system is designed to meet approximately 80 percent of the summer thermal load. 4 figs., 4 tabs.

Hewett, R. [National Renewable Energy Lab., Golden, CO (United States); Gee, R.; May, K. [Industrial Solar Technology, Arvada, CO (United States)

1991-12-01T23:59:59.000Z

316

Electrically heated liquid tank employing heat pipe heat transfer means  

SciTech Connect

The heating apparatus for applying heat to the interior of a chamber includes a modular, removable, electrical, heat-producing unit and a heat pipe mountable in a wall of the chamber with one end of the pipe arranged to receive heat from the electrical heat producing unit exterior of the housing and with another end of the pipe constructed and arranged to apply heat to the medium within the chamber. The heat pipe has high conductivity with a low temperature differential between the ends thereof and the heat producing unit includes an electric coil positioned about and removably secured to the one end of the heat pipe. The electric coil is embedded in a high thermal conducitivity, low electrical conductivity filler material which is surrounded by a low thermal conductivity insulating jacket and which is received around a metal core member which is removably secured to the one end of the heat pipe.

Shutt, J.R.

1978-12-26T23:59:59.000Z

317

Solar heat collector  

SciTech Connect

A solar heat collector comprises an evacuated transparent pipe; a solar heat collection plate disposed in the transparent pipe; a heat pipe, disposed in the transparent pipe so as to contact with the solar heat collection plate, and containing an evaporable working liquid therein; a heat medium pipe containing a heat medium to be heated; a heat releasing member extending along the axis of the heat medium pipe and having thin fin portions extending from the axis to the inner surface of the heat medium pipe; and a cylindrical casing surrounding coaxially the heat medium pipe to provide an annular space which communicates with the heat pipe. The evaporable working liquid evaporates, receiving solar heat collected by the heat collection plate. The resultant vapor heats the heat medium through the heat medium pipe and the heat releasing member.

Yamamoto, T.; Imani, K.; Sumida, I.; Tsukamoto, M.; Watahiki, N.

1984-04-03T23:59:59.000Z

318

Geothermal district heating systems  

DOE Green Energy (OSTI)

Ten district heating demonstration projects and their present status are described. The projects are Klamath County YMCA, Susanville District Heating, Klamath Falls District Heating, Reno Salem Plaza Condominium, El Centro Community Center Heating/Cooling, Haakon School and Business District Heating, St. Mary's Hospital, Diamond Ring Ranch, Pagosa Springs District Heating, and Boise District Heating.

Budney, G.S.; Childs, F.

1982-01-01T23:59:59.000Z

319

Energy Extraction from Horse Manure Biogas plant vs. Heating Plant.  

E-Print Network (OSTI)

?? Wången is a trotting school located in Alsen region in Mid Sweden. Currently they keep almost 105 horses in their premises, which produce 2… (more)

Moazedian, Amitis

2013-01-01T23:59:59.000Z

320

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

E-Print Network (OSTI)

solar thermal power (CSP) systems. Background and motivation2 Figure 2: Schematic of Sensible Heat Based CSP Plant[3 Figure 3: Schematic of PCM Based CSP Plant[

Hardin, Corey Lee

2011-01-01T23:59:59.000Z

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


321

New directions for district heating in the United States  

DOE Green Energy (OSTI)

Within the past five years there has been a growing awareness of the energy conservation and economic advantages of modern hot-water district heating systems. A description is given of the status of major US district heating projects and the potential impact of the newly implemented US National District Heating Plan is examined. At the present time there are five major district heating projects moving into the construction and demonstration phase. Although all have hot water distribution systems a variety of heat sources are being utilized. These heat sources include geothermal water, industrial reject heat, and utility cogeneration using coal-fired power plants.

Olszewski, M.; Karnitz, M.A.

1981-01-01T23:59:59.000Z

322

Heat Exchangers  

Science Conference Proceedings (OSTI)

Table 16   Ceramic heat exchanger systems...Soaking pit 870â??1230 1600â??2250 Fe, Si, alkalis Solar Turbines â?¦ 4â??8 OD Ã? 180 long (440 tubes) Aluminum melt furnaces 1010 1850 Alkali salts Plate fin GTE 0.6, 1.6 25â??46 Multiple 870â??1370 1600â??2250 Clean (good), alkalis (poor) Coors 0.25, 1.0 30 Ã? 30 Ã? 46 Multiple Clean (good), alkalis (poor) Radiant...

323

Heat pump system  

DOE Patents (OSTI)

An air heating and cooling system for a building includes an expansion-type refrigeration circuit and a heat engine. The refrigeration circuit includes two heat exchangers, one of which is communicated with a source of indoor air from the building and the other of which is communicated with a source of air from outside the building. The heat engine includes a heat rejection circuit having a source of rejected heat and a primary heat exchanger connected to the source of rejected heat. The heat rejection circuit also includes an evaporator in heat exchange relation with the primary heat exchanger, a heat engine indoor heat exchanger, and a heat engine outdoor heat exchanger. The indoor heat exchangers are disposed in series air flow relationship, with the heat engine indoor heat exchanger being disposed downstream from the refrigeration circuit indoor heat exchanger. The outdoor heat exchangers are also disposed in series air flow relationship, with the heat engine outdoor heat exchanger disposed downstream from the refrigeration circuit outdoor heat exchanger. A common fluid is used in both of the indoor heat exchanges and in both of the outdoor heat exchangers. In a first embodiment, the heat engine is a Rankine cycle engine. In a second embodiment, the heat engine is a non-Rankine cycle engine.

Swenson, Paul F. (Cleveland, OH); Moore, Paul B. (Fedhaurn, FL)

1982-01-01T23:59:59.000Z

324

Heat pump system  

DOE Patents (OSTI)

An air heating and cooling system for a building includes an expansion-type refrigeration circuit and a heat engine. The refrigeration circuit includes two heat exchangers, one of which is communicated with a source of indoor air from the building and the other of which is communicated with a source of air from outside the building. The heat engine includes a heat rejection circuit having a source of rejected heat and a primary heat exchanger connected to the source of rejected heat. The heat rejection circuit also includes an evaporator in heat exchange relation with the primary heat exchanger, a heat engine indoor heat exchanger, and a heat engine outdoor heat exchanger. The indoor heat exchangers are disposed in series air flow relationship, with the heat engine indoor heat exchanger being disposed downstream from the refrigeration circuit indoor heat exchanger. The outdoor heat exchangers are also disposed in series air flow relationship, with the heat engine outdoor heat exchanger disposed downstream from the refrigeration circuit outdoor heat exchanger. A common fluid is used in both of the indoor heat exchangers and in both of the outdoor heat exchangers. In a first embodiment, the heat engine is a Rankine cycle engine. In a second embodiment, the heat engine is a non-Rankine cycle engine.

Swenson, Paul F. (Cleveland, OH); Moore, Paul B. (Fedhaurn, FL)

1979-01-01T23:59:59.000Z

325

Energy Basics: Radiant Heating  

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

very low heat capacity and have the quickest response time of any heating technology. More Information Visit the Energy Saver website for more information about radiant heating...

326

Energy Basics: Radiant Heating  

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

low heat capacity and have the quickest response time of any heating technology. More Information Visit the Energy Saver website for more information about radiant heating in homes...

327

Comparison of an impedance heating system to mineral insulated heat trace for power tower applications  

DOE Green Energy (OSTI)

A non-conventional type of heating system is being tested at Sandia National Laboratories for solar thermal power tower applications. In this system, called impedance heating, electric current flows directly through the pipe to maintain the desired temperature. The pipe becomes the resistor where the heat is generated. Impedance heating has many advantages over previously used mineral insulated (MI) heat trace. An impedance heating system should be much more reliable than heat trace cable since delicate junctions and cabling are not used and the main component, a transformer, is inherently reliable. A big advantage of impedance heating is the system can be sized to rapidly heat up the piping to provide rapid response times necessary in cyclic power plants such as solar power towers. In this paper, experimental results from testing an impedance heating system are compared to MI heat trace. The authors found impedance heating was able to heat piping rapidly and effectively. There were not significant stray currents and impedance heating did not affect instrumentation.

Pacheco, J.E.; Kolb, W.J.

1997-03-01T23:59:59.000Z

328

Heat transfer and heat exchangers reference handbook  

Science Conference Proceedings (OSTI)

The purpose of this handbook is to provide Rocky Flats personnel with an understanding of the basic concepts of heat transfer and the operation of heat exchangers.

Not Available

1991-01-15T23:59:59.000Z

329

Heating systems for heating subsurface formations  

Science Conference Proceedings (OSTI)

Methods and systems for heating a subsurface formation are described herein. A heating system for a subsurface formation includes a sealed conduit positioned in an opening in the formation and a heat source. The sealed conduit includes a heat transfer fluid. The heat source provides heat to a portion of the sealed conduit to change phase of the heat transfer fluid from a liquid to a vapor. The vapor in the sealed conduit rises in the sealed conduit, condenses to transfer heat to the formation and returns to the conduit portion as a liquid.

Nguyen, Scott Vinh (Houston, TX); Vinegar, Harold J. (Bellaire, TX)

2011-04-26T23:59:59.000Z

330

Heat pipe reactors for space power applications  

SciTech Connect

A family of heat pipe reactors design concepts has been developed to provide heat to a variety of electrical conversion systems. Three power plants are described that span the power range 1-500 kW(e) and operate in the temperature range 1200 to 1700/sup 0/K. The reactors are fast, compact, heat-pipe cooled, high-temperature nuclear reactors fueled with fully enriched refractory fuels, UC-ZrC or UO/sub 2/. Each fuel element is cooled by an axially located molybdenum heat pipe containing either sodium or lithium vapor.

Koenig, D.R.; Ranken, W.A.; Salmi, E.W.

1977-01-01T23:59:59.000Z

331

ETTM - Heat Transfer Calculations Version 1.0  

Science Conference Proceedings (OSTI)

ETTM Heat Transfer Calculations is a computer based training module that allows users to access training when desired and review it at their own pace. It provides graphics and limited interactive features to enhance learning. This module reviews the basic engineering principles used to calculate heat transfer and how to apply these principles to typical nuclear plant applications. The calculation of heat transfer in plant systems is an important element of many engineering calculations. Students should r...

2010-09-27T23:59:59.000Z

332

Heat Recovery Steam Generator Simulation  

E-Print Network (OSTI)

The paper discusses the applications of Heat Recovery Steam Generator Simulation. Consultants, plant engineers and plant developers can evaluate the steam side performance of HRSGs and arrive at the optimum system which matches the needs of the process plant, cogeneration or combined cycle plant. There is no need to design the HRSG per se and hence simulation is a valuable tool for anyone interested in evaluating the HRSG performance even before it is designed. It can also save a lot of time for specification writers as they need not guess how the steam side performance will vary with different gas/steam parameters. A few examples are given to show how simulation methods can be applied to real life problems.

Ganapathy, V.

1993-03-01T23:59:59.000Z

333

Cogeneration Waste Heat Recovery at a Coke Calcining Facility  

E-Print Network (OSTI)

PSE Inc. recently completed the design, construction and start-up of a cogeneration plant in which waste heat in the high temperature flue gases of three existing coke calcining kilns is recovered to produce process steam and electrical energy. The heat previously exhausted to the atmosphere is now converted to steam by waste heat recovery boilers. Eighty percent of the steam produced is metered for sale to a major oil refinery, while the remainder passes through a steam turbine generator and is used for deaeration and feedwater heating. The electricity produced is used for the plant auxiliaries and sold to the local utility. Many design concepts were incorporated into the plant which provided for high plant availability, reliability and energy efficiency. This paper will show how these concepts were implemented and incorporated into the detailed design of the plant while making cogeneration a cost effective way to save conventional fuels. Operating data since plant start-up will also be presented.

Coles, R. L.

1986-06-01T23:59:59.000Z

334

Heat exchanger  

DOE Patents (OSTI)

A heat exchanger comparising a shell attached at its open end to one side of a tube sheet and a detachable head connected to the other side of said tube sheet. The head is divided into a first and second chamber in fluid communication with a nozzle inlet and nozzle outlet, respectively, formed in said tube sheet. A tube bundle is mounted within said shell and is provided with inlets and outlets formed in said tube sheet in communication with said first and second chambers, respectively.

Brackenbury, Phillip J. (Richland, WA)

1986-01-01T23:59:59.000Z

335

Retrofits for Improved Heat Rate and Availability: Circulating Water Heat Recovery Retrofits  

Science Conference Proceedings (OSTI)

Circulating water heat recovery is a means of directly increasing the thermal efficiency of a power plant. If only fuel savings are considered, the economic benefit is often only marginal. However, when increased megawatt output and heat-rate improvements are included in the economic analysis, such retrofits can be attractive, with break-even fuel costs sometimes approaching $1/million Btu.

1990-11-20T23:59:59.000Z

336

Radiofrequency plasma heating: proceedings  

SciTech Connect

The conference proceedings include sessions on Alfven Wave Heating, ICRF Heating and Current Drive, Lower Hybrid Heating and Current Drive, and ECRF Heating. Questions of confinement, diagnostics, instabilities and technology are considered. Individual papers are cataloged separately. (WRF)

Swenson, D.G. (ed.)

1985-01-01T23:59:59.000Z

337

Binary Cycle Power Plant | Open Energy Information  

Open Energy Info (EERE)

Binary Cycle Power Plant Binary Cycle Power Plant (Redirected from Binary Cycle Power Plants) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Binary Cycle Power Plant General List of Binary Plants Binary power plant process diagram - DOE EERE 2012 Binary cycle geothermal power generation plants differ from Dry Steam and Flash Steam systems in that the water or steam from the geothermal reservoir never comes in contact with the turbine/generator units. Low to moderately heated (below 400°F) geothermal fluid and a secondary (hence, "binary") fluid with a much lower boiling point that water pass through a heat exchanger. Heat from the geothermal fluid causes the secondary fluid to flash to vapor, which then drives the turbines and subsequently, the generators.

338

Binary Cycle Power Plant | Open Energy Information  

Open Energy Info (EERE)

Binary Cycle Power Plant Binary Cycle Power Plant (Redirected from Binary) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Binary Cycle Power Plant General List of Binary Plants Binary power plant process diagram - DOE EERE 2012 Binary cycle geothermal power generation plants differ from Dry Steam and Flash Steam systems in that the water or steam from the geothermal reservoir never comes in contact with the turbine/generator units. Low to moderately heated (below 400°F) geothermal fluid and a secondary (hence, "binary") fluid with a much lower boiling point that water pass through a heat exchanger. Heat from the geothermal fluid causes the secondary fluid to flash to vapor, which then drives the turbines and subsequently, the generators. Binary cycle power plants are closed-loop systems and virtually nothing

339

Photovoltaic roof heat flux  

E-Print Network (OSTI)

and could the heat transfer processes be modeled to estimateindicating that the heat transfer processes were modeled w i

Samady, Mezhgan Frishta

2011-01-01T23:59:59.000Z

340

Turbine Cycle Heat Rate Monitoring: Technology and Application  

Science Conference Proceedings (OSTI)

Research has been completed on available technology for monitoring turbine cycle heat rate and factors affecting the successful deployment of this technology in fossil generating plants. Information has been gathered from interviews with experienced industry plant staff and vendors. Trends were noted and are described in this report. The report is recommended as guidance for power generation fleets and individual plants seeking to establish a successful program for heat rate reduction.

2006-12-20T23:59:59.000Z

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


341

Heat pipe methanator  

DOE Patents (OSTI)

A heat pipe methanator for converting coal gas to methane. Gravity return heat pipes are employed to remove the heat of reaction from the methanation promoting catalyst, transmitting a portion of this heat to an incoming gas pre-heat section and delivering the remainder to a steam generating heat exchanger.

Ranken, William A. (Los Alamos, NM); Kemme, Joseph E. (Los Alamos, NM)

1976-07-27T23:59:59.000Z

342

Recovering heat when generating power  

Science Conference Proceedings (OSTI)

Intelligent use of heat-recovery stream generators (HRSGs) is vital for the efficient operation of cogeneration plants, which furnish both thermal energy (usually in the form of steam) and electric energy. HRSGs are similarly important in combined-cycle power plants, in which the thermal energy rejected from the primary electric-power-generation step is harnessed (as discussed below) to produce additional electrical energy. In these facilities, the HRSG is typically heated by gas-turbine exhaust. Natural gas is the fuel most widely used for gas turbines in the U.S., whereas fuel oil is the main fuel in other countries. Depending on the amount of steam to be produced, HRSGs for gas-turbine-exhaust applications may be unfired, supplementary-fired or furnace fired. The paper describes these three options; the pressure drop encountered in all three systems; the Cheng cycle; catalytic reduction of nitrogen oxides and CO; and performance testing.

Ganapathy, V.

1993-02-01T23:59:59.000Z

343

Segmented heat exchanger  

DOE Patents (OSTI)

A segmented heat exchanger system for transferring heat energy from an exhaust fluid to a working fluid. The heat exchanger system may include a first heat exchanger for receiving incoming working fluid and the exhaust fluid. The working fluid and exhaust fluid may travel through at least a portion of the first heat exchanger in a parallel flow configuration. In addition, the heat exchanger system may include a second heat exchanger for receiving working fluid from the first heat exchanger and exhaust fluid from a third heat exchanger. The working fluid and exhaust fluid may travel through at least a portion of the second heat exchanger in a counter flow configuration. Furthermore, the heat exchanger system may include a third heat exchanger for receiving working fluid from the second heat exchanger and exhaust fluid from the first heat exchanger. The working fluid and exhaust fluid may travel through at least a portion of the third heat exchanger in a parallel flow configuration.

Baldwin, Darryl Dean (Lafayette, IN); Willi, Martin Leo (Dunlap, IL); Fiveland, Scott Byron (Metamara, IL); Timmons, Kristine Ann (Chillicothe, IL)

2010-12-14T23:59:59.000Z

344

Dual source heat pump  

DOE Patents (OSTI)

What is disclosed is a heat pump apparatus for conditioning a fluid characterized by a fluid handler and path for circulating the fluid in heat exchange relationship with a refrigerant fluid; at least two refrigerant heat exchangers, one for effecting heat exchange with the fluid and a second for effecting heat exchange between refrigerant and a heat exchange fluid and the ambient air; a compressor for efficiently compressing the refrigerant; at least one throttling valve for throttling liquid refrigerant; a refrigerant circuit; refrigerant; a source of heat exchange fluid; heat exchange fluid circulating device and heat exchange fluid circuit for circulating the heat exchange fluid in heat exchange relationship with the refrigerant; and valves or switches for selecting the heat exchangers and direction of flow of the refrigerant therethrough for selecting a particular mode of operation. The heat exchange fluid provides energy for defrosting the second heat exchanger when operating in the air source mode and also provides a alternate source of heat.

Ecker, Amir L. (Dallas, TX); Pietsch, Joseph A. (Dallas, TX)

1982-01-01T23:59:59.000Z

345

Heat reclaimer for a heat pump  

Science Conference Proceedings (OSTI)

This invention relates to a heat reclaiming device for a heat pump. The heat reclaimer is able to absorb heat from the compressor by circulating cooling fluid through a circuit which is mounted in good heat transfer relationship with the condenser, then around the shell of the motor-compressor and lastly around the hollow tube which connects the condenser to the compressor. The reclaiming circuit is connected into a fluid circulating loop which is used to supply heat to the evaporator coil of the heat pump.

Beacham, W.H.

1981-02-03T23:59:59.000Z

346

An Engineering-Economic Analysis of Combined Heat and Power Technologies in a Grid Application  

E-Print Network (OSTI)

of increased overall conversion efficiency. First, carbon emissions from power plants and generators would be reduced. Second, the environmental problem of disposing of power plant waste heat into the environment of heat using conventional separate heat and power. For typical electrical and thermal efficiencies, CHP

347

The First Coal Plants  

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

Coal Plants Coal Plants Nature Bulletin No. 329-A January 25, 1969 Forest Preserve District of Cook County George W. Dunne, President Roland F. Eisenbeis, Supt. of Conservation THE FIRST COAL PLANTS Coal has been called "the mainspring" of our civilization. You are probably familiar, in a general way, with the story of how it originated ages ago from beds of peat which were very slowly changed to coal; and how it became lignite or brown coal, sub-bituminous, bituminous, or anthracite coal, depending on bacterial and chemical changes in the peat, how much it was compressed under terrific pressure, and the amount of heat involved in the process. You also know that peat is formed by decaying vegetation in shallow clear fresh-water swamps or bogs, but it is difficult to find a simple description of the kinds of plants that, living and dying during different periods of the earth's history, created beds of peat which eventually became coal.

348

Heat pipe technology development for high temperature space radiator applications  

SciTech Connect

Technology requirements for heat pipe radiators, potentially among the lightest weight systems for space power applications, include flexible elements, and improved specific radiator performance(kg/kW). For these applications a flexible heat pipe capable of continuous operation through an angle of 180/sup 0/ has been demonstrated. The effect of bend angle on the heat pipe temperature distribution is reviewed. An analysis of lightweight membrane heat pipe radiators that use surface tension forces for fluid containment has been conducted. The design analysis of these lightweight heat pipes is described and a potential application in heat rejection systems for space nuclear power plants outlined.

Merrigan, M.A.; Keddy, E.S.; Sena, J.T.; Elder, M.G.

1984-01-01T23:59:59.000Z

349

The Use of Aluminum Process Reject Heat as the Source of Energy for a District Heating System  

E-Print Network (OSTI)

Rocket Research Company (RRC) is investigating the use of industrial process reject heat as a source of energy for large scale district heating. The District heating System is a network of closed-loop hot water pipes that recover energy from the fume hood ducts at the Intalco aluminum reduction plant and transmits the energy to commercial, residential, and institutional users in Bellingham, Washington for space and hot water heating.

McCabe, J.; Olszewski, M.

1980-01-01T23:59:59.000Z

350

Novel heat pipe combination  

SciTech Connect

The basic heat pipe principle is employed in a heat pipe combination wherein two heat pipes are combined in opposing relationship to form an integral unit; such that the temperature, heat flow, thermal characteristics, and temperature-related parameters of a monitored environment or object exposed to one end of the heat pipe combination can be measured and controlled by controlling the heat flow of the opposite end of the heat pipe combination.

Arcella, F.G.

1978-01-10T23:59:59.000Z

351

Coal stockpiles at electric power plants were above average ...  

U.S. Energy Information Administration (EIA)

Alternative Fuels. Includes ... decline during summer and winter as power plants burn through stocks to meet peak electricity demand for heating and cooling, ...

352

NETL: Water-Energy Interface - Power Plant Water Management  

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

- Lehigh University This project determines the feasibility of using low grade power plant waste heat to dry lignite and sub-bituminous coals before they are burned in...

353

What is the efficiency of different types of power plants ...  

U.S. Energy Information Administration (EIA)

Average annual heat rates for specific types of fossil-fuel generators and nuclear power plants for most recent year available.

354

Improving steam turbine-gas turbine plants  

SciTech Connect

Leningrad Polytechnic Institute investigated the main characteristics of combined plants according to their structure, determined by very important parameters. The following parameters were selected: utilization factor (ratio of heat added to the steam-water working medium from the heat of the exhaust gases to the entire amount of heat added to the steam-water working medium) and fuel consumption factor (ratio of heat from fuel added to the steam-water working medium to the entire consumption of heat in the combined plant). It is concluded that steam turbine-gas turbine plants working at comparatively low gas temperatures (about 800/sup 0/C) must be constructed as plants of maximum capacity, i.e., with large steam flows. Gas turbine-steam turbine plants with high-temperature gas turbines operating at a high utilization factor (approaching binary plants) ensure a qualitative rise in efficiency and have high flexibility characteristics. They are the most promising power plants. A long-term plan for development of combined plants on the basis of standard steam turbine and gas turbine equipment, the production of which is planned in the USSR and in Comecon countries, is required. This plan must be closely connected with solution of the problem of using coals for gas turbine plants.

Kirillov, I.I.; Arsen' ev, L.V.; Khodak, E.A.; Romakhova, G.A.

1979-01-01T23:59:59.000Z

355

Making Use of Low-Level Heat  

E-Print Network (OSTI)

Immense amounts of energy are being thrown away every day in petroleum refineries, chemical plants, and throughout all types of industrial operations. Much of this energy is at temperature levels below 350OF and is typically rejected to the atmosphere through cooling towers and air fin coolers. We will designate this as "low-level heat". Between 20 to 30% of all the energy that enters a plant is lost as low-level heat. In a 100,000 BPD refinery, this is the equivalent of about 2,500 BPD of oil, or 15 billion Btu's per day. If any improvement can be made in the recovery and reuse of this heat, the energy efficiency of our plants would be significantly increased.

Plaster, W. E.

1979-01-01T23:59:59.000Z

356

TVA pilot greenhouse for waste heat research  

SciTech Connect

A pilot facility for evaluating the use of waste heat from power plants, both fossil-fueled and nuclear, to heat a greenhouse was designed and built at the TVA reservation at Muscle Shoals, Ala. The simulation of waste heat was from an electric hot water heater. The subjects to be evaluated included: greenhouse environmental control system operation during one year period under wide range of climatic conditions and the crop performance, i.e., yield and disease control under various controlled-environment conditions and with various rooting media conditions. The facility design, control instrumentation, tests performed, and operating conditions obtained for airflow, air temperature, and humidity are described. No information is included on the crops produced. It is concluded that the pilot facility is providing valuable guidelines for the design of a larger demonstration plant to be located at an operating power plant. (LCL)

King, L.D.; Furlong, W.K.

1973-01-01T23:59:59.000Z

357

Heat Exchanger Fouling- Prediction, Measurement and Mitigation  

E-Print Network (OSTI)

The U. S. Department of Energy (DOE), Office of Industrial Programs (OIP) sponsors the development of innovative heat exchange systems. Fouling is a major and persistent cost associated with most industrial heat exchangers and nationally wastes an estimated 2.9 Quads per year. To predict and control fouling, three OIP projects are currently exploring heat exchanger fouling in specific industrial applications. A fouling probe has been developed to determine empirically the fouling potential of an industrial gas stream and to derive the fouling thermal resistance. The probe is a hollow metal cylinder capable of measuring the average heat flux along the length of the tube. The local heat flux is also measured by a heat flux meter embedded in the probe wall. The fouling probe has been successfully tested in the laboratory at flue gas temperatures up to 2200°F and a local heat flux up to 41,000 BTU/hr-ft2. The probe has been field tested at a coal-fired boiler plant. Future tests at a municipal waste incinerator are planned. Two other projects study enhanced heat exchanger tubes, specifically the effect of enhanced surface geometries on tube bundle performance. Both projects include fouling in a liquid heat transfer fluid. Identifying and quantifying the factors affecting fouling in these enhanced heat transfer tubes will lead to techniques to mitigate fouling.

Peterson, G. R.

1989-09-01T23:59:59.000Z

358

Multiple source heat pump  

DOE Patents (OSTI)

A heat pump apparatus for conditioning a fluid characterized by a fluid handler and path for circulating a fluid in heat exchange relationship with a refrigerant fluid, at least three refrigerant heat exchangers, one for effecting heat exchange with the fluid, a second for effecting heat exchange with a heat exchange fluid, and a third for effecting heat exchange with ambient air; a compressor for compressing the refrigerant; at least one throttling valve connected at the inlet side of a heat exchanger in which liquid refrigerant is vaporized; a refrigerant circuit; refrigerant; a source of heat exchange fluid; heat exchange fluid circuit and pump for circulating the heat exchange fluid in heat exchange relationship with the refrigerant; and valves or switches for selecting the heat exchangers and directional flow of refrigerant therethrough for selecting a particular mode of operation. Also disclosed are a variety of embodiments, modes of operation, and schematics therefor.

Ecker, Amir L. (Duncanville, TX)

1983-01-01T23:59:59.000Z

359

Energy Star Building Upgrade Manual Heating and Cooling  

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

9. Heating and 9. Heating and Cooling Revised January 2008 9.1 Overview 2 9.2 Central Cooling Systems 3 Chiller Plant Operations and Maintenance 4 Chiller Plant Retrofits 6 9.3 Central Heating Systems 10 Boiler System Operations and Maintenance 11 Boiler System Retrofits 11 Improving Furnace Efficiency 13 9.4 Unitary Systems 14 Packaged Rooftop Units 16 Split-System Packaged Units 18 Air-Source Heat Pumps 18 Ground-Source, Closed-Loop Heat Pumps 19 9.5 Additional Strategies 20 Air-Side Economizer 20 Energy Recovery 20 Desiccant Dehumidification 20 Night Precooling 21 Cool Storage 22 Evaporative Cooling 22 9.6 Summary 22 Bibliography 23 Glossary G-1 1 ENERGY STAR ® Building Manual ENERGY STAR ® Building Manual 9. Heating and Cooling 9.1 Overview Although heating and cooling systems provide a useful service by keeping occupants comfort-

360

Retrofitting Combined Space and Water Heating Systems: Laboratory Tests  

SciTech Connect

Better insulated and tighter homes can often use a single heating plant for both space and domestic water heating. These systems, called dual integrated appliances (DIA) or combination systems, can operate at high efficiency and eliminate combustion safety issues associated by using a condensing, sealed combustion heating plant. Funds were received to install 400 DIAs in Minnesota low-income homes. The NorthernSTAR DIA laboratory was created to identify proper system components, designs, operating parameters, and installation procedures to assure high efficiency of field installed systems. Tests verified that heating loads up to 57,000 Btu/hr can be achieved with acceptable return water temperatures and supply air temperatures.

Schoenbauer, B.; Bohac, D.; Huelman, P.; Olson, R.; Hewitt, M.

2012-10-01T23:59:59.000Z

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


361

Plant Operational Status - Pantex Plant  

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

Status Plant Operational Status Page Content Operational Status Shift 1 - Day The Pantex Plant is open for normal operations. All personnel are to report for duty according to...

362

Jobs, sustainable heating coming to Vermont city | Department of Energy  

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

Jobs, sustainable heating coming to Vermont city Jobs, sustainable heating coming to Vermont city Jobs, sustainable heating coming to Vermont city March 15, 2010 - 6:07pm Addthis A woodchip-fired combined heat and power system will be built in Montpelier, Vt. | File photo A woodchip-fired combined heat and power system will be built in Montpelier, Vt. | File photo Joshua DeLung What will the project do? Their new woodchip-fired combined heat and power system will heat the Capitol Complex, the city's schools, City Hall and as many as 156 other buildings in the downtown area. Montpelier, Vt., netted $8 million in American Recovery and Reinvestment Act funding in January for a woodchip-fired combined heat and power system. The money will help build a 1.8 million kWh-generating plant that will heat the Capitol Complex, the city's schools, City Hall and as many

363

Jobs, sustainable heating coming to Vermont city | Department of Energy  

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

Jobs, sustainable heating coming to Vermont city Jobs, sustainable heating coming to Vermont city Jobs, sustainable heating coming to Vermont city March 15, 2010 - 6:07pm Addthis A woodchip-fired combined heat and power system will be built in Montpelier, Vt. | File photo A woodchip-fired combined heat and power system will be built in Montpelier, Vt. | File photo Joshua DeLung What will the project do? Their new woodchip-fired combined heat and power system will heat the Capitol Complex, the city's schools, City Hall and as many as 156 other buildings in the downtown area. Montpelier, Vt., netted $8 million in American Recovery and Reinvestment Act funding in January for a woodchip-fired combined heat and power system. The money will help build a 1.8 million kWh-generating plant that will heat the Capitol Complex, the city's schools, City Hall and as many

364

TRANSPARENT HEAT MIRRORS FOR PASSIVE SOLAR HEATING APPLICATIONS  

E-Print Network (OSTI)

for Passive Passive Solar Heating Applications StephenHEAT MIRRORS FOR PASSIVE SOLAR HEATING APPLICATIONS StephenMIRRORS FOR PASSIVE SOLAR HEATING APPLICATIONS Stephen

Selkowitz, S.

2011-01-01T23:59:59.000Z

365

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...

366

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...

367

Boise City Geothermal District Heating District Heating Low Temperatur...  

Open Energy Info (EERE)

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

368

San Bernardino District Heating District Heating Low Temperature...  

Open Energy Info (EERE)

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

369

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...

370

Pagosa Springs District Heating District Heating Low Temperature...  

Open Energy Info (EERE)

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

371

City of Klamath Falls District Heating District Heating Low Temperatur...  

Open Energy Info (EERE)

District Heating District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name City of Klamath Falls District Heating District Heating Low Temperature...

372

Northeast Home Heating Oil Reserve System Heating Oil, PIA Office...  

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

Northeast Home Heating Oil Reserve System Heating Oil, PIA Office of Fossil Energy Headquaters Northeast Home Heating Oil Reserve System Heating Oil, PIA Office of Fossil Energy...

373

Geothermal Heat Pumps  

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

Geothermal heat pumps use the constant temperature of the earth as an exchange medium for heat. Although many parts of the country experience seasonal temperature extremes—from scorching heat in...

374

Absorption heat pump system  

DOE Patents (OSTI)

The efficiency of an absorption heat pump system is improved by conducting liquid from a second stage evaporator thereof to an auxiliary heat exchanger positioned downstream of a primary heat exchanger in the desorber of the system.

Grossman, Gershon (Oak Ridge, TN)

1984-01-01T23:59:59.000Z

375

Absorption heat pump system  

DOE Patents (OSTI)

The efficiency of an absorption heat pump system is improved by conducting liquid from a second stage evaporator thereof to an auxiliary heat exchanger positioned downstream of a primary heat exchanger in the desorber of the system.

Grossman, G.

1982-06-16T23:59:59.000Z

376

SMALL PARTICLE HEAT EXCHANGERS  

E-Print Network (OSTI)

ON ~m Small Particle Heat Exchangers Arion J. Hunt June 1978d. LBL 7841 Small Particle Heat Exchangers by Arlon J. Huntgenerally to non-solar heat exchangers. These may be of the

Hunt, A.J.

2011-01-01T23:59:59.000Z

377

Photovoltaic roof heat flux  

E-Print Network (OSTI)

of ~24°C, indicating that heat conduction was small. T h i sday, indicating large heat conduction a n d storage. Control2.1.3 showed that conduction heat flux through the roof was

Samady, Mezhgan Frishta

2011-01-01T23:59:59.000Z

378

Heat Pump Systems  

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

Like a refrigerator, heat pumps use electricity to move heat from a cool space into a warm space, making the cool space cooler and the warm space warmer. Because they move heat rather than generate...

379

Solar heat collector  

Science Conference Proceedings (OSTI)

A solar heat collector is described that pre-heats water for a household hot water heating system, and also heats the air inside a house. The device includes solar heating panels set into an A-shape, and enclosing an area therein containing a water tank and a wristatic fan that utilize the heat of the enclosed air, and transmit the thermal energy therefrom through a water line and an air line into the house.

Sykes, A.B.

1981-07-28T23:59:59.000Z

380

Woven heat exchanger  

DOE Patents (OSTI)

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

Piscitella, R.R.

1984-07-16T23:59:59.000Z

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


381

Geothermal heat pump analysis article  

U.S. Energy Information Administration (EIA)

heat pump transfers heat from the ground or ground water to provide space heating. In the summer, the heat transfer process is reversed; the ground or groundwater

382

Urban Heat Catastrophes  

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

The curve shows the heat index, which reflects the combined effect of temperature and humidity. Last year's Chicago heat wave created a great deal of human discomfort and,...

383

Energy Basics: Heating Systems  

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

of energy sources, including electricity, boilers, solar energy, and wood and pellet-fuel heating. Small Space Heaters Used when the main heating system is inadequate or when...

384

Total Space Heat-  

Gasoline and Diesel Fuel Update (EIA)

Released: September, 2008 Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other All Buildings...

385

Total Space Heat-  

Gasoline and Diesel Fuel Update (EIA)

Revised: December, 2008 Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other All Buildings*...

386

Mass and Heat Recovery  

E-Print Network (OSTI)

In the last few years heat recovery was under spot and in air conditioning fields usually we use heat recovery by different types of heat exchangers. The heat exchanging between the exhaust air from the building with the fresh air to the building (air to air heat exchanger). In my papers I use (water to air heat exchanger) as a heat recovery and I use the water as a mass recovery. The source of mass and heat recovery is the condensate water which we were dispose and connect it to the drain lines.

Hindawai, S. M.

2010-01-01T23:59:59.000Z

387

Energy Basics: Water Heating  

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

Storage Water Heaters Tankless Demand Water Heaters Heat Pump Water Heaters Solar Water Heaters Tankless Coil & Indirect Water Heaters Water Heating A variety of...

388

Total Space Heat-  

Gasoline and Diesel Fuel Update (EIA)

Released: September, 2008 Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other All Buildings*...

389

Total Space Heat-  

Gasoline and Diesel Fuel Update (EIA)

Revised: December, 2008 Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other All Buildings...

390

Heat Pump for High School Heat Recovery  

E-Print Network (OSTI)

The heat pump system used for recycling and reusing waste heat in s high school bathroom was minutely analyzed in its coefficient of performance, onetime utilization ratio of energy, economic property and so on. The results showed that this system has good economic property, can conserve energy and protects the environment. Therefore, there is a large potential for its development. In addition, three projects using this system are presented and contrasted, which indicate that a joint system that uses both the heat pump and heat exchanger to recycle waste heat is a preferable option.

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

2006-01-01T23:59:59.000Z

391

Boost Process Heating Efficiency, Software Tools for Industry, Industrial Technologies Program (ITP) (Fact Sheet)  

Science Conference Proceedings (OSTI)

This fact sheet describes how the Industrial Technologies Program Process Heating Assessment and Survey Tool (PHAST) can help industrial plants indentify opportunities to save energy.

Not Available

2008-12-01T23:59:59.000Z

392

A Better Steam Engine: Designing a Distributed Concentrating Solar Combined Heat and Power System  

E-Print Network (OSTI)

solar power (CSP) troughs in the central valley of California (Pricesolar combined heat and power with desalination Figure 2.7: Comparison of desalination plants; price

Norwood, Zachary Mills

2011-01-01T23:59:59.000Z

393

Development of Technologies on Innovative-Simplified Nuclear Power Plant Using High-Efficiency Steam Injectors (12) Evaluations of Spatial Distributions of Flow and Heat Transfer in Steam Injector  

SciTech Connect

Next-generation nuclear reactor systems have been under development aiming at simplified system and improvement of safety and credibility. One of the innovative technologies is the supersonic steam injector, which has been investigated as one of the most important component of the next-generation nuclear reactor. The steam injector has functions of a passive pump without large motor or turbo-machinery and a high efficiency heat exchanger. The performances of the supersonic steam injector as a pump and a heat exchanger are dependent on direct contact condensation phenomena between a supersonic steam and a sub-cooled water jet. In previous studies of the steam injector, there are studies about the operating characteristics of steam injector and about the direct contact condensation between static water pool and steam in atmosphere. However, there is a little study about the turbulent heat transfer and flow behavior under the great shear stress. In order to examine the heat transfer and flow behavior in supersonic steam injector, it is necessary to measure the spatial temperature distribution and velocity in detail. The present study, visible transparent supersonic steam injector is used to obtain the axial pressure distributions in the supersonic steam injector, as well as high speed visual observation of water jet and steam interface. The experiments are conducted with and without non-condensable gas. The experimental results of the interfacial flow behavior between steam and water jet are obtained. It is experimentally clarified that an entrainment exists on the water jet surface. It is also clarified that discharge pressure is depended on the steam supply pressure, the inlet water flow rate, the throat diameter and non-condensable flow rate. Finally a heat flux is estimated about 19 MW/m{sup 2} without non-condensable gas condition in steam. (authors)

Yutaka Abe; Yujiro Kawamoto [University of Tsukuba, Tsukuba, Ibaraki (Japan); Chikako Iwaki [Toshiba Corporation (Japan); Tadashi Narabayashi [Hokkaido University, Kita-ku, Sapporo (Japan); Michitsugu Mori; Shuichi Ohmori [Tokyo Electric Power Company (Japan)

2006-07-01T23:59:59.000Z

394

Binary Cycle Power Plant | Open Energy Information  

Open Energy Info (EERE)

GEOTHERMAL ENERGYGeothermal Home GEOTHERMAL ENERGYGeothermal Home Binary Cycle Power Plant General List of Binary Plants Binary power plant process diagram - DOE EERE 2012 Binary cycle geothermal power generation plants differ from Dry Steam and Flash Steam systems in that the water or steam from the geothermal reservoir never comes in contact with the turbine/generator units. Low to moderately heated (below 400°F) geothermal fluid and a secondary (hence, "binary") fluid with a much lower boiling point that water pass through a heat exchanger. Heat from the geothermal fluid causes the secondary fluid to flash to vapor, which then drives the turbines and subsequently, the generators. Binary cycle power plants are closed-loop systems and virtually nothing (except water vapor) is emitted to the atmosphere. Resources below 400°F

395

Steam Conservation and Boiler Plant Efficiency Advancements  

E-Print Network (OSTI)

This paper examines several cost-effective steam conservation and boiler plant efficiency advancements that were implemented during a recently completed central steam boiler plant replacement project at a very large semiconductor manufacturing complex. The measures include: 1) Reheating of dehumidified cleanroom make-up air with heat extracted during precooling. 2) Preheating of deionization feedwater with refrigerant heat of condensation. 3) Preheating of boiler combustion air with heat extracted from boiler flue gas. 4) Preheating of boiler feedwater with heat extracted from gas turbine exhaust. 5) Variable speed operation of boiler feedwater pumps and forced-draft fans. 6) Preheating of boiler make-up water with heat extracted from boiler surface blow-down. The first two advancements (steam conservation measures) reduced the amount of steam produced by about 25% and saved about $1,010,000/yr by using recovered waste heat rather than steam-derived heat at selected heating loads. The last four advancements (boiler plant efficiency measures) reduced the unit cost of steam produced by about 13% and saved about $293,500/yr by reducing natural gas and electricity usage at the steam boiler plant. The combined result was a 35% reduction in annual steam costs (fuel and power).

Fiorino, D. P.

2000-04-01T23:59:59.000Z

396

CX-002509: Categorical Exclusion Determination | Department of...  

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

computer power management, hot water systemscontrols, lighting, kitchen equipment, laundry equipment, plug load controls, heating, ventilating, and air conditioning system...

397

Rotary magnetic heat pump  

DOE Patents (OSTI)

A rotary magnetic heat pump constructed without flow seals or segmented rotor accomplishes recuperation and regeneration by using split flow paths. Heat exchange fluid pumped through heat exchangers and returned to the heat pump splits into two flow components: one flowing counter to the rotor rotation and one flowing with the rotation.

Kirol, Lance D. (Shelly, ID)

1988-01-01T23:59:59.000Z

398

Direct fired heat exchanger  

DOE Patents (OSTI)

A gas-to-liquid heat exchanger system which transfers heat from a gas, generally the combustion gas of a direct-fired generator of an absorption machine, to a liquid, generally an absorbent solution. The heat exchanger system is in a counterflow fluid arrangement which creates a more efficient heat transfer.

Reimann, Robert C. (Lafayette, NY); Root, Richard A. (Spokane, WA)

1986-01-01T23:59:59.000Z

399

Woven heat exchanger  

DOE Patents (OSTI)

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

Piscitella, Roger R. (Idaho Falls, ID)

1987-01-01T23:59:59.000Z

400

Rotary magnetic heat pump  

DOE Patents (OSTI)

A rotary magnetic heat pump constructed without flow seals or segmented rotor accomplishes recuperation and regeneration by using split flow paths. Heat exchange fluid pumped through heat exchangers and returned to the heat pump splits into two flow components: one flowing counter to the rotor rotation and one flowing with the rotation. 5 figs.

Kirol, L.D.

1987-02-11T23:59:59.000Z

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


401

Secondary Heat Exchanger Design and Comparison for Advanced High Temperature Reactor  

Science Conference Proceedings (OSTI)

The goals of next generation nuclear reactors, such as the high temperature gas-cooled reactor and advance high temperature reactor (AHTR), are to increase energy efficiency in the production of electricity and provide high temperature heat for industrial processes. The efficient transfer of energy for industrial applications depends on the ability to incorporate effective heat exchangers between the nuclear heat transport system and the industrial process heat transport system. The need for efficiency, compactness, and safety challenge the boundaries of existing heat exchanger technology, giving rise to the following study. Various studies have been performed in attempts to update the secondary heat exchanger that is downstream of the primary heat exchanger, mostly because its performance is strongly tied to the ability to employ more efficient conversion cycles, such as the Rankine super critical and subcritical cycles. This study considers two different types of heat exchangers—helical coiled heat exchanger and printed circuit heat exchanger—as possible options for the AHTR secondary heat exchangers with the following three different options: (1) A single heat exchanger transfers all the heat (3,400 MW(t)) from the intermediate heat transfer loop to the power conversion system or process plants; (2) Two heat exchangers share heat to transfer total heat of 3,400 MW(t) from the intermediate heat transfer loop to the power conversion system or process plants, each exchanger transfers 1,700 MW(t) with a parallel configuration; and (3) Three heat exchangers share heat to transfer total heat of 3,400 MW(t) from the intermediate heat transfer loop to the power conversion system or process plants. Each heat exchanger transfers 1,130 MW(t) with a parallel configuration. A preliminary cost comparison will be provided for all different cases along with challenges and recommendations.

Piyush Sabharwall; Ali Siahpush; Michael McKellar; Michael Patterson; Eung Soo Kim

2012-06-01T23:59:59.000Z

402

Optimization system for operation of gas cogeneration power plant  

Science Conference Proceedings (OSTI)

The paper presents a distributed control system for the realization of cogenerative supply of electricity and heat and, in given case, for their combination with waste heat recovery, particularly in combined (gas-steam) cycle industrial power plants. ... Keywords: cogenerative gas power plant, control of distributed parameter systems, optimization, process control

Ion Miciu

2008-09-01T23:59:59.000Z

403

An expert system prototype for designing natural gas cogeneration plants  

Science Conference Proceedings (OSTI)

Cogeneration plants are units that simultaneously produce electricity and useful heat from the same fuel. In such plants different components (prime movers, pumps, steam generators, etc.) are combined in order to meet electricity and useful heat loads ... Keywords: Cogeneration, Engineering design, Expert systems, Natural gas

José Alexandre Matelli; Edson Bazzo; Jonny Carlos da Silva

2009-05-01T23:59:59.000Z

404

BOP Heat Exchanger NDE Application: Automated Analysis Software Evaluation  

Science Conference Proceedings (OSTI)

Aging power plant components, especially balance-of-plant (BOP) heat exchanger tubing, experience failures as a result of a variety of flaw damage mechanisms. Accurately sizing these flaws has always been delegated to the experience and knowledge of qualified eddy current data analysts. Manually reporting all BOP heat exchanger tubing flaws is not practical because of time constraints and because the number of tubing flaws can vary from tube to tube. Typically, only the worst flaw condition is reported, ...

2003-05-30T23:59:59.000Z

405

Field Guide: Heat Recovery Steam Generator Tube Failure  

Science Conference Proceedings (OSTI)

In conventional and combined-cycle plants, boiler and heat recovery steam generator (HRSG) tube failures have been the main availability problem for as long as reliable statistics have been kept for each generating source. The three volumes of the Electric Power Research Institute (EPRI) report Boiler and Heat Recovery Steam Generator Tube Failures: Theory and Practice (1012757) present an in-depth description of the various HRSG and degradation mechanisms, providing plant owners and operators with the t...

2010-12-15T23:59:59.000Z

406

Definition: Combined heat and power | Open Energy Information  

Open Energy Info (EERE)

heat and power heat and power Jump to: navigation, search Dictionary.png Combined heat and power The production of electricity and heat from a single process. Almost synonymous with the term cogeneration, but slightly more broad. Under the Public Utility Regulatory Policies Act (PURPA), the definition of cogeneration is the production of electric energy and "another form of useful thermal energy through the sequential use of energy." Since some facilities produce both heat and power but not in a sequential fashion, the term CHP is used.[1][2][3] View on Wikipedia Wikipedia Definition View on Reegle Reegle Definition Cogeneration power plants produce electricity but do not waste the heat this process creates. The heat is used for district heating or other purposes, and thus the overall efficiency is improved. For example could

407

Waste Heat Recovery Power Generation with WOWGen  

E-Print Network (OSTI)

WOW operates in the energy efficiency field- one of the fastest growing energy sectors in the world today. The two key products - WOWGen® and WOWClean® provide more energy at cheaper cost and lower emissions. •WOWGen® - Power Generation from Industrial Waste Heat •WOWClean® - Multi Pollutant emission control system. Current power generation technology uses only 35% of the energy in a fossil fuel and converts it to useful output. The remaining 65% is discharged into the environment as waste heat at temperatures ranging from 300°F to 1,200°F. This waste heat can be captured using the WOWGen® technology and turned into electricity. This efficiency is up to twice the rate of competing technologies. Compelling economics and current environmental policy are stimulating industry interest. WOWGen® power plants can generate between 1 - 25 MW of electricity. Project payback is between two to five years with IRR of 15% 30%. Nearly anywhere industrial waste heat is present, the WOW products can be applied. Beneficial applications of heat recovery power generation can be found in Industry (e.g. steel, glass, cement, lime, pulp and paper, refining and petrochemicals), Power Generation (CHP, biomass, biofuel, traditional fuels, gasifiers, diesel engines) and Natural Gas (pipeline compression stations, processing plants). Sources such as stack flue gases, steam, diesel exhaust, hot oil or combinations of sources can be used to generate power. WOWGen® can also be used with stand alone power plants burning fossil fuels or using renewable energy sources such as solar and biomass.

Romero, M.

2009-05-01T23:59:59.000Z

408

Thulium-170 heat source  

SciTech Connect

An isotopic heat source is formed using stacks of thin individual layers of a refractory isotopic fuel, preferably thulium oxide, alternating with layers of a low atomic weight diluent, preferably graphite. The graphite serves several functions: to act as a moderator during neutron irradiation, to minimize bremsstrahlung radiation, and to facilitate heat transfer. The fuel stacks are inserted into a heat block, which is encased in a sealed, insulated and shielded structural container. Heat pipes are inserted in the heat block and contain a working fluid. The heat pipe working fluid transfers heat from the heat block to a heat exchanger for power conversion. Single phase gas pressure controls the flow of the working fluid for maximum heat exchange and to provide passive cooling.

Walter, C.E.; Van Konynenburg, R.; VanSant, J.H.

1990-09-06T23:59:59.000Z

409

Thulium-170 heat source  

DOE Patents (OSTI)

An isotopic heat source is formed using stacks of thin individual layers of a refractory isotopic fuel, preferably thulium oxide, alternating with layers of a low atomic weight diluent, preferably graphite. The graphite serves several functions: to act as a moderator during neutron irradiation, to minimize bremsstrahlung radiation, and to facilitate heat transfer. The fuel stacks are inserted into a heat block, which is encased in a sealed, insulated and shielded structural container. Heat pipes are inserted in the heat block and contain a working fluid. The heat pipe working fluid transfers heat from the heat block to a heat exchanger for power conversion. Single phase gas pressure controls the flow of the working fluid for maximum heat exchange and to provide passive cooling.

Walter, Carl E. (Pleasanton, CA); Van Konynenburg, Richard (Livermore, CA); VanSant, James H. (Tracy, CA)

1992-01-01T23:59:59.000Z

410

Evaluation of the Pulsed Eddy Current Inspection Technique Known as the Through-Fin Inspection System for Heat Recovery Steam Genera tors (T-FISH) as Applicable to Power Plants  

Science Conference Proceedings (OSTI)

This project is a continuation of previous work Intertek APTECH did in support of the Electric Power Research Institute EPRI report 1008093, Electromagnetic Nondestructive Evaluation NDE for Heat Recovery Steam Generators HRSGs, 2005. EPRI report 1008093 was an NDE overview report that reviewed different commercially available electromagnetic NDE techniques suitable for HRSG applications involving both finned and nonfinned tubing. The pulsed eddy current PEC methodology demonstrated an ability to detect ...

2009-12-23T23:59:59.000Z

411

Experimental testing and analytical analysis of a plastic panel heat exchanger for greenhouse heating  

SciTech Connect

The performance of a plastic panel-type heat exchanger, suitable for greenhouse heating using low-grade (25 to 60/sup 0/C water) power plant reject heat, was investigated theoretically and experimentally. The theoretical analysis showed that a plastic panel heat exchanger would have an overall heat transfer coefficient, U/sub 0/, of about 18 w/m/sup 2/-/sup 0/C compared to about 12 w/m/sup 2/-/sup 0/C for a fin-tube heat exchanger, under typical greenhouse conditions. Furthermore the plastic heat exchanger would require less fan power due to reduced air pressure losses. The experimental data revealed a similar functional relationship for U/sub 0/ and air flow when compared with the theoretical calculations, however the experimental values of U/sub 0/ were consistently larger by 20 to 30%. It was concluded that a properly designed plastic heat exchanger can compete with metal fin tube type exchangers on a performance basis, but the plastic heat exchangers are 3 to 4 times larger by volume. However, because of the lower cost of plastic, a substantial cost reduction is expected. It appears that further study, examining heat exchanger lifetime, performance and costs, is warranted.

Olszewski, M.; Thomas, J.F.

1980-02-01T23:59:59.000Z

412

MONITORING WASTE HEAT REJECTION TO THE ENVIRONMENT VIA REMOTE SENSING  

Science Conference Proceedings (OSTI)

Nuclear power plants typically use waste heat rejection systems such as cooling lakes and natural draft cooling towers. These systems are designed to reduce cooling water temperatures sufficiently to allow full power operation even during adverse meteorological conditions. After the power plant is operational, the performance of the cooling system is assessed. These assessments usually rely on measured temperatures of the cooling water after it has lost heat to the environment and is being pumped back into the power plant (cooling water inlet temperature). If the cooling system performance is not perceived to be optimal, the utility will collect additional data to determine why. This paper discusses the use of thermal imagery collected from aircraft and satellites combined with numerical simulation to better understand the dynamics and thermodynamics of nuclear power plant waste heat dissipation systems. The ANS meeting presentation will discuss analyses of several power plant cooling systems based on a combination of remote sensing data and hydrodynamic modeling.

Garrett, A

2009-01-13T23:59:59.000Z

413

Waste heat steams ahead with injection technology  

Science Conference Proceedings (OSTI)

Owners of Commercial-Industrial-Institutional buildings whose thermal usage is too variable to implement cogeneration are looking to a gasturbine steam-injection technology, called the Cheng Cycle, to reduce their energy costs. The Cheng Cycle uses industrial components-a gas-turbine generating set, a waste-heat recovery steam generator and system controls-in a thermodynamically optimized mode. In the process, steam produced from waste heat can be used for space or process heating or to increase the electrical output of a gas turbine. The process was patented in 1974 by Dr. Dah Yu Cheng, of the University of Santa Clara, Santa Clara, Calif. When a plant's thermal needs fall because of production or temperature changes, unused steam is directed back to the turbine to increase electrical output. As thermal requirements rise, the process is reversed and needed steam is channeled to plant uses.

Shepherd, S.; Koloseus, C.

1985-03-01T23:59:59.000Z

414

Heat pipe system  

SciTech Connect

A heat pipe diode device for transferring heat from a heat source component to a heat sink wall is described. It contains a heat pipe body member attached to the best source; the heat source having a wall forming at least a portion of the normal evaporator section of the heat pipe diode; a working fluid within the body member; a cover for the heat pipe diode forming at least a portion of the heat sink wall; the cover forming the normal condenser for the heat pipe diode; a wick connected between the condenser and the evaporator of the heat pipe diode; means for retaining the wick adjacent the heat pipe wall; a wick support plate adjacent to the cover; the wick being attached to the support plate; means for holding the wick in contact with the cover; and means, responsive to excessive temperatures at the heat sink wall, for moving the support plate and a portion of the wick away from the cover to thereby substantially reduce heat flow in the reverse direction through said heat pipe diode device.

Kroebig, H.L.; Riha, F.J. III

1974-12-03T23:59:59.000Z

415

Temperature control system for a J-module heat exchanger  

DOE Patents (OSTI)

The level of primary fluid is controlled to change the effective heat transfer area of a heat exchanger utilized in a liquid metal nuclear power plant to eliminate the need for liquid metal control valves to regulate the flow of primary fluid and the temperature of the effluent secondary fluid.

Basdekas, Demetrios L. (Rockville, PA); Macrae, George (Murrysville, PA); Walsh, Joseph M. (Pittsburgh, PA)

1978-01-01T23:59:59.000Z

416

Engineering Fundamentals - Heat Transfer & Fluid Flow, Version 6.0  

Science Conference Proceedings (OSTI)

The Heat Transfer and Fluid Flow module covers basic terms and concepts of heat transfer and fluid flow and discusses their applications in nuclear power plants. This course will help new engineers understand how their work might impact and/or be ...

2013-01-17T23:59:59.000Z

417

Energy Basics: Air-Source Heat Pumps  

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

Systems Air-Source Heat Pumps Ductless Mini-Split Heat Pumps Absorption Heat Pumps Geothermal Heat Pumps Supporting Equipment for Heating & Cooling Systems Water Heating...

418

Energy Basics: Absorption Heat Pumps  

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

but by a heat source such as natural gas, propane, solar-heated water, or geothermal-heated water. Because natural gas is the most common heat source for absorption heat...

419

OUT Success Stories: Solar Trough Power Plants  

DOE Green Energy (OSTI)

The Solar Electric Generating System (SEGS) plants use parabolic-trough solar collectors to capture the sun's energy and convert it to heat. The SEGS plants range in capacity from 13.8 to 80 MW, and they were constructed to meet Southern California Edison Company's periods of peak power demand.

Jones, J.

2000-08-05T23:59:59.000Z

420

Development of a Computer-based Benchmarking and Analytical Tool: Benchmarking and Energy & Water Savings Tool in Dairy Plants (BEST-Dairy)  

E-Print Network (OSTI)

coal and natural gas fired power plants for the locations ornatural gas) because there are a lot of plants that use combined heat and power (

Xu, Tengfang

2013-01-01T23:59:59.000Z

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


421

Public Interest Energy Research (PIER) Program Development of a Computer-based Benchmarking and Analytical Tool: Benchmarking and Energy & Water Savings Tool in Dairy Plants (BEST-Dairy)  

E-Print Network (OSTI)

coal and natural gas fired power plants for the locations ornatural gas) because there are a lot of plants that use combined heat and power (

Xu, Tengfang

2013-01-01T23:59:59.000Z

422

Advanced Soldier Thermoelectric Power System for Power Generation from Battlefield Heat Sources  

DOE Green Energy (OSTI)

The U.S. military uses large amounts of fuel during deployments and battlefield operations. This project sought to develop a lightweight, small form-factor, soldier-portable advanced thermoelectric (TE) system prototype to recover and convert waste heat from various deployed military equipment (i.e., diesel generators/engines, incinerators, vehicles, and potentially mobile kitchens), with the ultimate purpose of producing power for soldier battery charging, advanced capacitor charging, and other battlefield power applications. The technical approach employed microchannel technology, a unique “power panel” approach to heat exchange/TE system integration, and newly-characterized LAST (lead-antimony-silver-telluride) and LASTT (lead-antimony-silver-tin-telluride) TE materials segmented with bismuth telluride TE materials in designing a segmented-element TE power module and system. This project researched never-before-addressed system integration challenges (thermal expansion, thermal diffusion, electrical interconnection, thermal and electrical interfaces) of designing thin “power panels” consisting of alternating layers of thin, microchannel heat exchangers (hot and cold) sandwiching thin, segmented-element TE power generators. The TE properties, structurally properties, and thermal fatigue behavior of LAST and LASTT materials were developed and characterized such that the first segmented-element TE modules using LAST / LASTT materials were fabricated and tested at hot-side temperatures = 400 °C and cold-side temperatures = 40 °C. LAST / LASTT materials were successfully segmented with bismuth telluride and electrically interconnected with diffusion barrier materials and copper strapping within the module electrical circuit. A TE system design was developed to produce 1.5-1.6 kW of electrical energy using these new TE modules from the exhaust waste heat of 60-kW Tactical Quiet Generators as demonstration vehicles.

Hendricks, Terry J.; Hogan, Tim; Case, Eldon D.; Cauchy, Charles J.

2010-09-01T23:59:59.000Z

423

Latent heat accumulating greenhouse  

Science Conference Proceedings (OSTI)

This invention relates to a latent heat accumulating greenhouse utilizing solar heat. The object of the invention is to provide a greenhouse which is simple in construction, of high efficiency for heat absorbing and capable of much absorbing and accumulating of heat. A heat accumulating chamber partitioned by transparent sheets is provided between the attic and a floor surface facing north in the greenhouse. A blower fan is disposed to confront an opening provided at the lower portion in said heat accumulating chamber. Also, in the heat accumulating chamber, a heat accumulating unit having a large number of light transmitting windows and enclosing a phase transformation heat accumulating material such as CaC1/sub 2/.6H/sub 2/O, Na/sub 2/SO/sub 4/.10H/sub 2/O therein is detachably suspended in a position close to windowpanes at the north side.

Yano, N.; Ito, H.; Makido, I.

1985-04-16T23:59:59.000Z

424

Materials for Ultra-Supercritical Steam Power Plants  

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

for Advanced Ultra-Supercritical for Advanced Ultra-Supercritical Steam Power Plants Background The first ultra-supercritical (USC) steam plants in the U.S. were designed, constructed, and operated in the late 1950s. The higher operating temperatures and pressures in USC plants were designed to increase the efficiency of steam plants. However, materials performance problems forced the reduction of steam temperatures in these plants, and discouraged further developmental efforts on low heat-rate units.

425

Turbine power plant system  

SciTech Connect

A turbine power plant system consisting of three sub-systems; a gas turbine sub-system, an exhaust turbine sub-system, and a steam turbine sub-system. The three turbine sub-systems use one external fuel source which is used to drive the turbine of the gas turbine sub-system. Hot exhaust fluid from the gas turbine sub-system is used to drive the turbines of the exhaust turbine sub-system and heat energy from the combustion chamber of the gas turbine sub-system is used to drive the turbine of the steam turbine sub-system. Each sub-system has a generator. In the gas turbine sub-system, air flows through several compressors and a combustion chamber and drives the gas turbine. In the exhaust turbine sub-system, hot exhaust fluid from the gas turbine sub-system flows into the second passageway arrangement of first and fourth heat exchangers and thus transfering the heat energy to the first passageway arrangement of the first and fourth heat exchangers which are connected to the inlets of first and second turbines, thus driving them. Each turbine has its own closed loop fluid cycle which consists of the turbine and three heat exchangers and which uses a fluid which boils at low temperatures. A cooler is connected to a corresponding compressor which forms another closed loop system and is used to cool the exhaust fluid from each of the two above mentioned turbines. In the steam turbine sub-system, hot fluid is used to drive the steam turbine and then it flows through a fluid duct, to a first compressor, the first fluid passageway arrangement of first and second heat exchangers, the second passageway of the first heat exchanger, the combustion chamber of the gas turbine where it receives heat energy, and then finally to the inlet of the steam turbine, all in one closed loop fluid cycle. A cooler is connected to the second passageway of the second heat exchanger in a closed loop fluid cycle, which is used to cool the turbine exhaust.

Papastavros, D.

1985-03-05T23:59:59.000Z

426

Heat transfer system  

DOE Patents (OSTI)

A heat transfer system for a nuclear reactor is described. Heat transfer is accomplished within a sealed vapor chamber which is substantially evacuated prior to use. A heat transfer medium, which is liquid at the design operating temperatures, transfers heat from tubes interposed in the reactor primary loop to spaced tubes connected to a steam line for power generation purposes. Heat transfer is accomplished by a two-phase liquid-vapor-liquid process as used in heat pipes. Condensible gases are removed from the vapor chamber through a vertical extension in open communication with the chamber interior.

Not Available

1980-03-07T23:59:59.000Z

427

Heat transfer system  

DOE Patents (OSTI)

A heat transfer system for a nuclear reactor. Heat transfer is accomplished within a sealed vapor chamber which is substantially evacuated prior to use. A heat transfer medium, which is liquid at the design operating temperatures, transfers heat from tubes interposed in the reactor primary loop to spaced tubes connected to a steam line for power generation purposes. Heat transfer is accomplished by a two-phase liquid-vapor-liquid process as used in heat pipes. Condensible gases are removed from the vapor chamber through a vertical extension in open communication with the chamber interior.

McGuire, Joseph C. (Richland, WA)

1982-01-01T23:59:59.000Z

428

Laundry heat recovery system  

SciTech Connect

A laundry heat recovery system includes a heat exchanger associated with each dryer in the system, the heat exchanger being positioned within the exhaust system of the dryer. A controller responsive to the water temperature of the heat exchangers and the water storage for the washer selectively circulates the water through a closed loop system whereby the water within the exchangers is preheated by the associated dryers. By venting the exhaust air through the heat exchanger, the air is dehumidified to permit recirculation of the heated air into the dryer.

Alio, P.

1985-04-09T23:59:59.000Z

429

Wound tube heat exchanger  

DOE Patents (OSTI)

What is disclosed is a wound tube heat exchanger in which a plurality of tubes having flattened areas are held contiguous adjacent flattened areas of tubes by a plurality of windings to give a double walled heat exchanger. The plurality of windings serve as a plurality of effective force vectors holding the conduits contiguous heat conducting walls of another conduit and result in highly efficient heat transfer. The resulting heat exchange bundle is economical and can be coiled into the desired shape. Also disclosed are specific embodiments such as the one in which the tubes are expanded against their windings after being coiled to insure highly efficient heat transfer.

Ecker, Amir L. (Duncanville, TX)

1983-01-01T23:59:59.000Z

430

Heat Exchangers for Solar Water Heating Systems | Department of Energy  

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

Heat Exchangers for Solar Water Heating Systems Heat Exchangers for Solar Water Heating Systems Heat Exchangers for Solar Water Heating Systems May 30, 2012 - 3:40pm Addthis Image of a heat exchanger. | Photo from iStockphoto.com Image of a heat exchanger. | Photo from iStockphoto.com Solar water heating systems use heat exchangers to transfer solar energy absorbed in solar collectors to the liquid or air used to heat water or a space. Heat exchangers can be made of steel, copper, bronze, stainless steel, aluminum, or cast iron. Solar heating systems usually use copper, because it is a good thermal conductor and has greater resistance to corrosion. Types of Heat Exchangers Solar water heating systems use three types of heat exchangers: Liquid-to-liquid A liquid-to-liquid heat exchanger uses a heat-transfer fluid that

431

Assessment of Amines for Fossil Plant Applications  

Science Conference Proceedings (OSTI)

The purity and proper chemical treatment of water and steam are central to ensuring fossil and heat recovery steam generator (HRSG) plant component availability and reliability, which are critical to the overall economic performance and profitability of plant unit operations. This report provides a technical assessment of neutralizing amines for application in plant cycles to improve the pH conditions in the low pressure (LP) evaporators and economizers of HRSGs, the phase transition zone (PTZ) of the LP...

2010-03-31T23:59:59.000Z

432

`Heat pumps in Smart Grids' IEA Annex 42  

E-Print Network (OSTI)

;Global renewable power generation 42% Average annual growth in Solar PV 27% Average annual growth for heat pumps Source: IEA-ETP 2012 #12;All flexibility sources will be needed Dispatchable power plants Energy storage facilities Interconnection with adjacent markets Biomassfired power plant Pumped hydro

Oak Ridge National Laboratory

433

EVALUATION OF HEAT REJECTION SYSTEMS FOR PL-3  

SciTech Connect

An investigation was made of heat rejection systems for use in the PL-3 nuclear power plant, designed for placement at Byrd Station, Antarctica. It was concluded that the glycol-coupled surface condenser and air blast cooler combination appears to be suited for PL-3 plant requirements and operating conditions. (auth)

Thurnau, C.J.

1962-03-01T23:59:59.000Z

434

Electronics Come of Age: A Taxonomy for Miscellaneous and Low Power Products  

E-Print Network (OSTI)

electric Oven, gas Refrigerator Water heating Water heating,Heating pad Hot plate (kitchen) Iron Juicer Kettle Knife Mug warmer Oven,

Nordman, Bruce; Sanchez, Marla C.

2006-01-01T23:59:59.000Z

435

Frozen plants  

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

Frozen plants Frozen plants Name: janicehu Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: Why do some plants freeze and others do not? Replies: The main reason some plants freeze and others do not is that some plants do not have much water in them. Pine tree leaves have little water and are therefore difficult to freeze. Another reason is that some plants make chemicals to put into their fluids that reduce the freezing temperature. Salts and oils are some. The polyunsaturated fats found in many plants freeze at a lower temperature than the saturated fats found in many animals. Therefore plant fats are liquid (oils) at room temperature, and animal fats are solid. Plants could not use so many saturated fats as warm blooded animals do or they would freeze up solid at higher temperatures. I know little of plants but many animals can make ethylene glycol to keep themselves from freezing. Ethylene glycol is the active ingredient in car anti-freeze

436

ATOMIC POWER PLANT  

DOE Patents (OSTI)

This patent relates to neutronic reactor power plants and discloses a design of a reactor utilizing a mixture of discrete units of a fissionable material, such as uranium carbide, a neutron moderator material, such as graphite, to carry out the chain reaction. A liquid metal, such as bismuth, is used as the coolant and is placed in the reactor chamber with the fissionable and moderator material so that it is boiled by the heat of the reaction, the boiling liquid and vapors passing up through the interstices between the discrete units. The vapor and flue gases coming off the top of the chamber are passed through heat exchangers, to produce steam, for example, and thence through condensers, the condensed coolant being returned to the chamber by gravity and the non- condensible gases being carried off through a stack at the top of the structure.

Daniels, F.

1957-11-01T23:59:59.000Z

437

Advanced Power Plant Modeling with Applications to an Advanced Boiling Water  

E-Print Network (OSTI)

wave fronts. However, in most power plant transient performance models, there are few heat exchangersAdvanced Power Plant Modeling with Applications to an Advanced Boiling Water Reactor and a Heat Introduction This paper presents two advanced modeling methods, and two applications, for power plant

Mitchell, John E.

438

DIRECT FUEL CELL/TURBINE POWER PLANT  

DOE Green Energy (OSTI)

Project activities were focused on the design and construction the sub-scale hybrid Direct Fuel Cell/turbine (DFC/T{reg_sign}) power plant and modification of a Capstone Simple Cycle Model 330 microturbine. The power plant design work included preparation of system flow sheet and performing computer simulations based on conservation of mass and energy. The results of the simulation analyses were utilized to prepare data sheets and specifications for balance-of-plant equipment. Process flow diagram (PFD) and piping and instrumentation diagrams (P&ID) were also completed. The steady state simulation results were used to develop design information for modifying the control functions, and for sizing the heat exchangers required for recuperating the waste heat from the power plant. Line and valve sizes for the interconnecting pipes between the microturbine and the heat recuperators were also identified.

Hossein Ghezel-Ayagh

2003-05-22T23:59:59.000Z

439

SASSYS-1 balance-of-plant component models for an integrated plant response  

Science Conference Proceedings (OSTI)

Models of power plant heat transfer components and rotating machinery have been added to the balance-of-plant model in the SASSYS-1 liquid metal reactor systems analysis code. This work is part of a continuing effort in plant network simulation based on the general mathematical models developed. The models described in this paper extend the scope of the balance-of-plant model to handle non-adiabatic conditions along flow paths. While the mass and momentum equations remain the same, the energy equation now contains a heat source term due to energy transfer across the flow boundary or to work done through a shaft. The heat source term is treated fully explicitly. In addition, the equation of state is rewritten in terms of the quality and separate parameters for each phase. The models are simple enough to run quickly, yet include sufficient detail of dominant plant component characteristics to provide accurate results. 5 refs., 16 figs., 2 tabs.

Ku, J.-Y.

1989-01-01T23:59:59.000Z

440

Combined heat recovery and make-up water heating system  

Science Conference Proceedings (OSTI)

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.

Kim, S.Y.

1988-05-24T23:59:59.000Z

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


441

HEAT TRANSFER IN UNDERGROUND HEATING EXPERIMENTS IN GRANITE, STRIPA, SWEDEN  

E-Print Network (OSTI)

CLOSED-FORM INTEGRAL SOLUTIONS FOR LINEAR HEAT CONDUCTION.For linear heat conduction in a homogeneous, isotropiclaw of similitude for linear heat conduction was utilized to

Chan, T.

2010-01-01T23:59:59.000Z

442

HEAT TRANSFER IN UNDERGROUND HEATING EXPERIMENTS IN GRANITE, STRIPA, SWEDEN  

E-Print Network (OSTI)

Analysis of. Nonlinear Heat Transfer Problems." Report no.Berkeley, Ca. , APPENDIX A. HEAT TRANSFER BY CONDUCTION ANDMeeting, Technical Session on Heat Transfer in Nuclear Waste

Chan, T.

2010-01-01T23:59:59.000Z

443

Consolidated Electric Cooperative- Heat Pump and Water Heating Rebates  

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

Consolidated Electric Cooperative provides rebates to residential customers who install electric water heaters, dual-fuel heating system or geothermal heat pumps. A dual-fuel heating systems...

444

Chapter 19. Heat Engines and Refrigerators That's not smoke. It's clouds  

E-Print Network (OSTI)

the cooling towers around a large power plant. The power plant is generating electricity by turning heat Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley. electricity by turning heat fuel, into another, such as work. · Chapters 17 and 18 established two laws of thermodynamics Copyright

Dhamala, Mukesh

445

Geothermal/Power Plant | Open Energy Information  

Open Energy Info (EERE)

Geothermal/Power Plant Geothermal/Power Plant < Geothermal(Redirected from Power Plant) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Land Use Leasing Exploration Well Field Power Plant Transmission Environment Water Use Print PDF Geothermal Power Plants General List of Plants Map of Plants Regulatory Roadmap NEPA (19) Binary power system equipment and cooling towers at the ORMAT Ormesa Geothermal Power Complex in Southern California. Geothermal Power Plants discussion Electricity Generation Converting the energy from a geothermal resource into electricity is achieved by producing steam from the heat underground to spin a turbine which is connected to a generator to produce electricity. The type of energy conversion technology that is used depends on whether the resource is predominantly water or steam, the temperature of the resource, and the

446

Energeticals power plant engineering | Open Energy Information  

Open Energy Info (EERE)

Energeticals power plant engineering Energeticals power plant engineering Jump to: navigation, search Name energeticals power plant engineering Place München, Bavaria, Germany Zip 81371 Sector Biomass, Geothermal energy Product Planning, design, installation and operation of turnkey plants for heat and electricity generation in the field of solid Biomass, deep and shallow geothermal energy and water power. References energeticals power plant engineering[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. energeticals power plant engineering is a company located in München, Bavaria, Germany . References ↑ "[ energeticals power plant engineering]" Retrieved from "http://en.openei.org/w/index.php?title=Energeticals_power_plant_engineering&oldid=344770

447

Section D: SPACE HEATING  

U.S. Energy Information Administration (EIA)

Central warm-air furnace with ducts to individual rooms other than a heat pump ..... 03 Steam/Hot water ... REVERSE Heat pump ... Don't have a separate water heater ...

448

Heat pipe fabrication  

SciTech Connect

A heat pipe is disclosed which is fabricated with an artery arranged so that the warp and weave of the wire mesh are at about a 45/sup 0/ angle with respect to the axis of the heat pipe.

Leinoff, S.; Edelstein, F.; Combs, W.

1977-01-18T23:59:59.000Z

449

Electric Resistance Heating  

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

Electric resistance heat can be supplied by centralized forced-air electric furnaces or by heaters in each room. Electric resistance heating converts nearly all of the energy in the electricity to...

450

Space Heating and Cooling  

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

A wide variety of technologies are available for heating and cooling homes and other buildings. In addition, many heating and cooling systems have certain supporting equipment in common, such as...

451

Total Space Heat-  

Gasoline and Diesel Fuel Update (EIA)

Survey: Energy End-Use Consumption Tables Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other...

452

Carnivorous Plants  

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

Carnivorous Plants Carnivorous Plants Nature Bulletin No. 597-A March 27, 1976 Forest Preserve District of Cook County George W. Dunne, President Roland F. Eisenbeis, Supt. of Conservation CARNIVOROUS PLANTS Plants, generally, are eaten by insects or furnish other food for them. But there are a few families of strange plants that, instead, "eat" insects and other small animals. About 500 species are distributed over the world, from the arctic to the tropics. Most of them have peculiar leaves that not only attract insects but are equipped to trap and kill their victims. Even more remarkable is the fact that some have glands which secrete a digestive juice that softens and decomposes the animal until it is absorbed by the plant in much the same way as your stomach digests food.

453

RadHeat V1 User's Manual  

SciTech Connect

RadHeat is a one dimensional finite difference heat transfer code that can determine the transient temperature evolution of layered targets in pulsed penetrating radiation environments. It makes use of energy dependent opacity and stopping data to model the volumetric deposition of any number of photon or ion spectra each incident at arbitrary angles. Convective and radiative boundary conditions are handled as well as the ability to impose any initial temperature profile. The heat diffusion equation is formulated implicitly to eliminate timestep dependent stability issues. Simulations are, therefore, able to achieve high fidelity during times of thermal activity and greater speed elsewhere. The prototypical physical situation simulated by RadHeat is illustrated. RadHeat was originally written to study the temperature response of tungsten-armored target-facing walls to the pulsed photon and ion radiation emanating from fusion microexplosions in future IFE power plants. RadHeat's implementation is quite general, though, and the code can be applied to a very broad range of problems. Anything from the heating of the Earth's crust on a warm summer day to the temperature rise in a mirror after a laser pulse could potentially be modeled. This manual was written to help new users learn how to run the code and introduce them to the simulation tools it provides.

Abbott, R P

2005-01-03T23:59:59.000Z

454

Steam turbines for cogeneration power plants  

SciTech Connect

Steam turbines for cogeneration plants may carry a combination of industrial, space heating, cooling and domestic hot water loads. These loads are hourly, weekly, and seasonally irregular and require turbines of special design to meet the load duration curve, while generating electric power. Design features and performance characteristics of one of the largest cogeneration turbine units for combined electric generation and district heat supply are presented. Different modes of operation of the cogeneration turbine under variable load conditions are discussed in conjunction with a heat load duration curve for urban heat supply. Problems associated with the retrofitting of existing condensing type turbines for cogeneration applications are identified. 4 refs.

Oliker, I.

1980-04-01T23:59:59.000Z

455

Gas consumption shrinks in commercial laundry plant  

SciTech Connect

The submerged-exhaust water-heating system with heat-recovery economizer operates above 90% efficiency compared to the 60% efficiency of the plant's old system. The system will require 3,936 therms/week compared to 5,887 with the old generator. Bubbles from the submerged downcomer tube rise through the surrounding bath, transferring heat through the gas-liquid interface as they rise to the surface. Heat transfer to the liquid bath is immediate and efficiency is high.

1981-09-01T23:59:59.000Z

456

Abrasion resistant heat pipe  

DOE Patents (OSTI)

A specially constructed heat pipe is described for use in fluidized bed combustors. Two distinct coatings are spray coated onto a heat pipe casing constructed of low thermal expansion metal, each coating serving a different purpose. The first coating forms aluminum oxide to prevent hydrogen permeation into the heat pipe casing, and the second coating contains stabilized zirconium oxide to provide abrasion resistance while not substantially affecting the heat transfer characteristics of the system.

Ernst, D.M.

1984-10-23T23:59:59.000Z

457

Flue heat reclaimer  

Science Conference Proceedings (OSTI)

A flue heat reclaimer is constructed to be mounted on the exterior of a flue duct of a heater and provide a spiral-shaped heat transfer passage extending around the flue duct. A fan causes air to flow through the heat transfer passage so that the temperature of this air is elevated by reason at its extended heat transfer relationship with the flue duct.

Paolino, R.J.

1983-05-03T23:59:59.000Z

458

Solar heat receiver  

DOE Patents (OSTI)

A receiver for converting solar energy to heat a gas to temperatures from 700.degree.-900.degree. C. The receiver is formed to minimize impingement of radiation on the walls and to provide maximum heating at and near the entry of the gas exit. Also, the receiver is formed to provide controlled movement of the gas to be heated to minimize wall temperatures. The receiver is designed for use with gas containing fine heat absorbing particles, such as carbon particles.

Hunt, Arlon J. (Oakland, CA); Hansen, Leif J. (Berkeley, CA); Evans, David B. (Orinda, CA)

1985-01-01T23:59:59.000Z

459

Solar heat receiver  

DOE Patents (OSTI)

A receiver is described for converting solar energy to heat a gas to temperatures from 700 to 900/sup 0/C. The receiver is formed to minimize impingement of radiation on the walls and to provide maximum heating at and near the entry of the gas exit. Also, the receiver is formed to provide controlled movement of the gas to be heated to minimize wall temperatures. The receiver is designed for use with gas containing fine heat absorbing particles, such as carbon particles.

Hunt, A.J.; Hansen, L.J.; Evans, D.B.

1982-09-29T23:59:59.000Z

460

Abrasion resistant heat pipe  

DOE Patents (OSTI)

A specially constructed heat pipe for use in fluidized bed combustors. Two distinct coatings are spray coated onto a heat pipe casing constructed of low thermal expansion metal, each coating serving a different purpose. The first coating forms aluminum oxide to prevent hydrogen permeation into the heat pipe casing, and the second coating contains stabilized zirconium oxide to provide abrasion resistance while not substantially affecting the heat transfer characteristics of the system.

Ernst, Donald M. (Leola, PA)

1984-10-23T23:59:59.000Z

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


461

Energy Efficiency Improvement and Cost Saving Opportunities for the Vehicle Assembly Industry: An ENERGY STAR Guide for Energy and Plant Managers  

E-Print Network (OSTI)

a significant source of wasted energy. A typical plant thatalong with its (wasted) heat energy (Ford, 2002). Ford plans

Galitsky, Christina

2008-01-01T23:59:59.000Z

462

Gas turbine plant emissions  

SciTech Connect

Many cogeneration facilities use gas turbines combined with heat recovery boilers, and the number is increasing. At the start of 1986, over 75% of filings for new cogeneration plants included plans to burn natural gas. Depending on the geographic region, gas turbines are still one of the most popular prime movers. Emissions of pollutants from these turbines pose potential risks to the environment, particularly in geographical areas that already have high concentrations of cogeneration facilities. Although environmental regulations have concentrated on nitrogen oxides (NO/sub x/) in the past, it is now necessary to evaluate emission controls for other pollutants as well.

Davidson, L.N.; Gullett, D.E.

1987-03-01T23:59:59.000Z

463

Pacific Region Combined Heat and Power Projects | Department of Energy  

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

Pacific Region Combined Heat and Power Projects Pacific Region Combined Heat and Power Projects Pacific Region Combined Heat and Power Projects November 1, 2013 - 11:40am Addthis DOE's Regional CHP Technical Assistance Partnerships (CHP TAPs) have compiled a select number of combined heat and power (CHP) project profiles, which are available as Adobe Acrobat PDFs. Pacific www.pacificCHPTAP.org Terry Clapham California Center for Sustainable Energy 858-244-4872 terry.clapham@energycenter.org California Alameda County Santa Rita Jail, Dublin Burlingame Wastewater Treatment Plant, Burlingame Chiquita Water Reclamation Plant, Santa Margarita DGS Central Plant, Sacramento East Bay Municipal Utility District, Oakland East Bay Municipal Utility District WWTP, Oakland EMWD Microturbine Energy System, Riverside County

464

Pacific Region Combined Heat and Power Projects | Department of Energy  

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

Pacific Region Combined Heat and Power Projects Pacific Region Combined Heat and Power Projects Pacific Region Combined Heat and Power Projects November 1, 2013 - 11:40am Addthis DOE's Regional CHP Technical Assistance Partnerships (CHP TAPs) have compiled a select number of combined heat and power (CHP) project profiles, which are available as Adobe Acrobat PDFs. Pacific www.pacificCHPTAP.org Terry Clapham California Center for Sustainable Energy 858-244-4872 terry.clapham@energycenter.org California Alameda County Santa Rita Jail, Dublin Burlingame Wastewater Treatment Plant, Burlingame Chiquita Water Reclamation Plant, Santa Margarita DGS Central Plant, Sacramento East Bay Municipal Utility District, Oakland East Bay Municipal Utility District WWTP, Oakland EMWD Microturbine Energy System, Riverside County

465

Reduced-risk HTGR concept for industrial-heat application  

SciTech Connect

The industrial process heat market has been identified as major market for the High Temperature Gas-Cooled Reactor (HTGR), however, this market introduces stringent availability requirements on the reactor system relative to electric plants which feed a large existing grid. The characteristics and requirements of the industrial heat markets are summarized; the risks associated with serving this market with a single large HTGR will be discussed; and the modular concept, which has the potential to reduce both safety and investment risks, will be described. The reference modular concept described consists of several small, relatively benign nuclear heat sources linked together to supply heat energy to a balance-of-plant incorporating a process gas train/thermochemical pipe line system and a normal steam-electric plant.

Boardman, C.E.; Lipps, A.J.

1982-06-01T23:59:59.000Z

466

HEAT TRANSFER MEANS  

DOE Patents (OSTI)

A heat exchanger is adapted to unifomly cool a spherical surface. Equations for the design of a spherical heat exchanger hav~g tubes with a uniform center-to-center spining are given. The heat exchanger is illustrated in connection with a liquid-fueled reactor.

Fraas, A.P.; Wislicenus, G.F.

1961-07-11T23:59:59.000Z

467

Liquid heat capacity lasers  

DOE Patents (OSTI)

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

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

2007-05-01T23:59:59.000Z

468

Energy Basics: Geothermal Heat Pumps  

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

EERE: Energy Basics Geothermal Heat Pumps Geothermal heat pumps use the constant temperature of the earth as an exchange medium for heat. Although many parts of the country...

469

A corrosive resistant heat exchanger  

DOE Patents (OSTI)

A corrosive and erosive resistant heat exchanger which recovers heat from a contaminated heat stream. The heat exchanger utilizes a boundary layer of innocuous gas, which is continuously replenished, to protect the heat exchanger surface from the hot contaminated gas. The innocuous gas is pumped through ducts or perforations in the heat exchanger wall. Heat from the heat stream is transferred by radiation to the heat exchanger wall. Heat is removed from the outer heat exchanger wall by a heat recovery medium. 3 figs., 3 tabs.

Richlen, S.L.

1987-08-10T23:59:59.000Z

470

Balance of Plant Requirements for a Nuclear Hydrogen Plant  

DOE Green Energy (OSTI)

This document describes the requirements for the components and systems that support the hydrogen production portion of a 600 megawatt thermal (MWt) Next Generation Nuclear Plant (NGNP). These systems, defined as the "balance-of-plant" (BOP), are essential to operate an effective hydrogen production plant. Examples of BOP items are: heat recovery and heat rejection equipment, process material transport systems (pumps, valves, piping, etc.), control systems, safety systems, waste collection and disposal systems, maintenance and repair equipment, heating, ventilation, and air conditioning (HVAC), electrical supply and distribution, and others. The requirements in this document are applicable to the two hydrogen production processes currently under consideration in the DOE Nuclear Hydrogen Initiative. These processes are the sulfur iodide (S-I) process and the high temperature electrolysis (HTE) process. At present, the other two hydrogen production process - the hybrid sulfur-iodide electrolytic process (SE) and the calcium-bromide process (Ca-Br) -are under flow sheet development and not included in this report. While some features of the balance-of-plant requirements are common to all hydrogen production processes, some details will apply only to the specific needs of individual processes.

Bradley Ward

2006-04-01T23:59:59.000Z

471

Engineering and economic feasibility of utilizing geothermal heat from the Heber Reservoir for industrial processing purposes at Valley Nitrogen Producers Inc. , El Centro Agricultural Chemical Plant. Second quarterly report  

DOE Green Energy (OSTI)

The initial economic evaluation is provided for the alternatives to natural gas consumption previously identified. Using estimates of well costs, well flow, well life, temperature, enthalpy, and rates of return on invested capital, the cost of brine production has been estimated in terms of a demand charge and an energy charge. Capital costs of geothermal flash steam and binary systems from 5 to 30 Gross MW capacities have been estimated utilizing a modified Battelle Pacific Northwest Laboratories GEOCOST computer program. Fossil fuel costs, geothermal brine costs, and rate of inflation have been projected through 1997. Using these data, the thermal cycle efficiencies, and the capital cost data, the projected annual cost savings and the internal rate of return, as a function of the amount of fossil fuel displaced by geothermal energy, have been calculated and preliminary conclusions have been drawn based on this overall economic evaluation. In addition to an overall economic evaluation, an individual energy utilization evaluation was undertaken. Using estimates of capital costs, energy costs, and energy conversion efficiencies, a total unit charge rate in $/Hp-hr was assigned to each existing equipment driver and each proposed energy alternative to determine the best method for substituting geothermal energy for existing fossil fuel energy in the Valley Nitrogen Producers (VNP) Plant Steam Cycle. An optimal cost-effective plan for individual energy utilization in the VNP Plant Steam Cycle was developed from this evaluation and preliminary conclusions drawn.

Not Available

1977-06-30T23:59:59.000Z

472

Chemical heat pump  

DOE Patents (OSTI)

A chemical heat pump system is disclosed for use in heating and cooling structures such as residences or commercial buildings. The system is particularly adapted to utilizing solar energy, but also increases the efficiency of other forms of thermal energy when solar energy is not available. When solar energy is not available for relatively short periods of time, the heat storage capacity of the chemical heat pump is utilized to heat the structure as during nighttime hours. The design also permits home heating from solar energy when the sun is shining. The entire system may be conveniently rooftop located. In order to facilitate installation on existing structures, the absorber and vaporizer portions of the system may each be designed as flat, thin wall, thin pan vessels which materially increase the surface area available for heat transfer. In addition, this thin, flat configuration of the absorber and its thin walled (and therefore relatively flexible) construction permits substantial expansion and contraction of the absorber material during vaporization and absorption without generating voids which would interfere with heat transfer. The heat pump part of the system heats or cools a house or other structure through a combination of evaporation and absorption or, conversely, condensation and desorption, in a pair of containers. A set of automatic controls change the system for operation during winter and summer months and for daytime and nighttime operation to satisfactorily heat and cool a house during an entire year. The absorber chamber is subjected to solar heating during regeneration cycles and is covered by one or more layers of glass or other transparent material. Daytime home air used for heating the home is passed at appropriate flow rates between the absorber container and the first transparent cover layer in heat transfer relationship in a manner that greatly reduce eddies and resultant heat loss from the absorbant surface to ambient atmosphere.

Greiner, Leonard (2750-C Segerstrom Ave., Santa Ana, CA 92704)

1980-01-01T23:59:59.000Z

473

Bond Graph Model of a Vertical U-Tube Steam Condenser Coupled with a Heat Exchanger  

E-Print Network (OSTI)

Bond Graph Model of a Vertical U-Tube Steam Condenser Coupled with a Heat Exchanger K. Medjaher1+ A and thus the bottom well acts as a heat exchanger. The storage of hydraulic and thermal energies steam condenser; Heat exchanger; Bond graph 1. Introduction Modern process engineering plants

Paris-Sud XI, Université de

474

HEAT TRANSFER IN UNDERGROUND HEATING EXPERIMENTS IN GRANITE, STRIPA, SWEDEN  

E-Print Network (OSTI)

law of similitude for linear heat conduction was utilized tothe analogy between heat conduction and fluid flow in por­the effects of heat conduction through the vermiculite heat

Chan, T.

2010-01-01T23:59:59.000Z

475

Applied heat transfer  

Science Conference Proceedings (OSTI)

Heat transfer principles are discussed with emphasis on the practical aspects of the problems. Correlations for heat transfer and pressure drop from several worldwide sources for flow inside and outside of tubes, including finned tubes are presented, along with design and performance calculations of heat exchangers economizers, air heaters, condensers, waste-heat boilers, fired heaters, superheaters, and boiler furnaces. Vibration analysis for tube bundles and heat exchangers are also discussed, as are estimating gas-mixture properties at atmospheric and elevated pressures and life-cycle costing techniques. (JMT)

Ganapathy, V.

1982-01-01T23:59:59.000Z

476

Absorption heat pump system  

DOE Patents (OSTI)

An improvement in an absorption heat pump cycle is obtained by adding adiabatic absorption and desorption steps to the absorber and desorber of the system. The adiabatic processes make it possible to obtain the highest temperature in the absorber before any heat is removed from it and the lowest temperature in the desorber before heat is added to it, allowing for efficient utilization of the thermodynamic availability of the heat supply stream. The improved system can operate with a larger difference between high and low working fluid concentrations, less circulation losses, and more efficient heat exchange than a conventional system.

Grossman, Gershon (Oak Ridge, TN); Perez-Blanco, Horacio (Knoxville, TN)

1984-01-01T23:59:59.000Z

477

Municipal District Heating and Cooling Co-generation System Feasibility Research  

E-Print Network (OSTI)

In summer absorption refrigerating machines provide cold water using excess heat from municipal thermoelectric power plant through district heating pipelines, which reduces peak electric load from electricity networks in summer. The paper simulates annual dynamic load of a real project to calculate the first investments, annual operation cost and LCC (life cycle cost) of the four schemes, which are electric chillers, electric chillers with ice-storage system, absorption refrigerating machines using excess heat from power plant and absorption refrigerating machines using excess heat from power plant along with ice-storage system. On the basis of the results, the paper analyzes the prospect of the absorption refrigeration using municipal excess heat, as well as the reasonable heat price, which provides a theoretical basis for municipal heating and cooling co-generation development.

Zhang, W.; Guan, W.; Pan, Y.; Ding, G.; Song, X.; Zhang, Y.; Li, Y.; Wei, H.; He, Y.

2006-01-01T23:59:59.000Z

478

Coil said to up heat reclaimer efficiency 3-5%  

SciTech Connect

The Elton Corp. will introduce a new heat reclaimer coil that can be used with its flue gas heat claimer to produce high-temperature hot water. The new coil, which can bring water from 125 to 165 degrees for users that require hotter water, can increase fuel savings by 3 to 5 percent over the standard unit. At prices starting at $32,000 to generate 20 gallons per minute, the heat reclaimer can pay for itself in as little as four months. Both the heat reclaimer and coil are custom built at Eldon's Louisiana plant.

Not Available

1984-08-06T23:59:59.000Z

479

Diffusion Welding of Compact Heat Exchangers for Nuclear Applications  

Science Conference Proceedings (OSTI)

The next-­-generation nuclear plant (NGNP) is designed to be a flexible source of energy, producing various mixes of electrical energy and process heat (for example, for hydrogen generation) on demand. Compact heat exchangers provide an attractive way to move energy from the helium primary reactor coolant to process heat uses. For process heat efficiency, reactor outlet temperatures of 750-­-900°C are desirable. There are minor but deleterious components in the primary coolant; the number of alloys that can handle this environment is small. The present work concentrates on Alloys 800H and 617.

Denis Clark; Ron Mizia; Dr. Michael V. Glazoff; Mr. Michael W. Patterson

2012-06-01T23:59:59.000Z

480

Heat-activated cooling devices: A guidebook for general audiences  

DOE Green Energy (OSTI)

Heat-activated cooling is refrigeration or air conditioning driven by heat instead of electricity. A mill or processing facility can us its waste fuel to air condition its offices or plant; using waste fuel in this way can save money. The four basic types of heat-activated cooling systems available today are absorption cycle, desiccant system, steam jet ejector, and steam turbine drive. Each is discussed, along with cool storage and biomass boilers. Steps in determining the feasibility of heat-activated cooling are discussed, as are biomass conversion, system cost and integration, permits, and contractor selection. Case studies are given.

Wiltsee, G.

1994-02-01T23:59:59.000Z

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


481

Plasma heat pump and heat engine  

Science Conference Proceedings (OSTI)

A model system where cold charged particles are locally confined in a volume V{sub P} within a warm plasma of volume V (V{sub P}kilowatts is possible with the present day technology. Second, we discuss the feasibility of constructing an electrostatic heat engine which converts plasma heat into mechanical work via plasma electric fields. Effects of P{sub E} are shown to be observable in colloidal solutions.

Avinash, K. [Centre for Space Plasma and Aeronomic Research, University of Alabama, Huntsville, Alabama 35899 (United States) and Department of Physics and Astrophysics, University of Delhi, Delhi 110007 (India)

2010-08-15T23:59:59.000Z

482

Simplify heat recovery steam generator evaluation  

SciTech Connect

Heat recovery steam generators (HRSGs) are widely used in process and power plants, refineries and in several cogeneration/combined cycle systems. They are usually designed for a set of gas and steam conditions but often operate under different parameters due to plant constraints, steam demand, different ambient conditions (which affect the gas flow and exhaust gas temperature in a gas turbine plant), etc. As a result, the gas and steam temperature profiles in the HRSG, steam production and the steam temperature differ from the design conditions, affecting the entire plant performance and economics. Also, consultants and process engineers who are involved in evaluating the performance of the steam system as a whole, often would like to simulate the performance of an HRSG under different gas flows, inlet gas temperature and analysis, steam pressure and feed water temperature to optimize the entire steam system and select proper auxiliaries such as steam turbines, condensers, deaerators, etc.

Ganapathy, V. (ABCO Industries, Abilene, TX (US))

1990-03-01T23:59:59.000Z

483

HEAT TRANSFER IN UNDERGROUND HEATING EXPERIMENTS IN GRANITE, STRIPA, SWEDEN  

E-Print Network (OSTI)

standing of the heat transfer processes associated withto investigate the heat transfer and related processes in an

Chan, T.

2010-01-01T23:59:59.000Z

484

Heat pump apparatus  

DOE Patents (OSTI)

A heat pump apparatus including a compact arrangement of individual tubular reactors containing hydride-dehydride beds in opposite end sections, each pair of beds in each reactor being operable by sequential and coordinated treatment with a plurality of heat transfer fluids in a plurality of processing stages, and first and second valves located adjacent the reactor end sections with rotatable members having multiple ports and associated portions for separating the hydride beds at each of the end sections into groups and for simultaneously directing a plurality of heat transfer fluids to the different groups. As heat is being generated by a group of beds, others are being regenerated so that heat is continuously available for space heating. As each of the processing stages is completed for a hydride bed or group of beds, each valve member is rotated causing the heat transfer fluid for the heat processing stage to be directed to that bed or group of beds. Each of the end sections are arranged to form a closed perimeter and the valve member may be rotated repeatedly about the perimeter to provide a continuous operation. Both valves are driven by a common motor to provide a coordinated treatment of beds in the same reactors. The heat pump apparatus is particularly suitable for the utilization of thermal energy supplied by solar collectors and concentrators but may be used with any source of heat, including a source of low-grade heat.

Nelson, Paul A. (Wheaton, IL); Horowitz, Jeffrey S. (Woodridge, IL)

1983-01-01T23:59:59.000Z

485

A model for improvement of water heating heat exchanger designs for residential heat pump water heaters.  

E-Print Network (OSTI)

??Heat pump water heaters are a promising technology to reduce energy use and greenhouse gas emissions. A key component is the water heating heat exchanger.… (more)

Weerawoot, Arunwattana

2010-01-01T23:59:59.000Z

486

Residential Heating Oil Prices  

Gasoline and Diesel Fuel Update (EIA)

This chart highlights residential heating oil prices for the current and This chart highlights residential heating oil prices for the current and past heating season. As you can see, prices have started the heating season, about 40 to 50 cents per gallon higher than last year at this time. The data presented are from EIA's State Heating Oil and Propane Program. We normally collect and publish this data twice a month, but given the low stocks and high prices, we started tracking the prices weekly. These data will also be used to determine the price trigger mechanism for the Northeast Heating Oil Reserve. The data are published at a State and regional level on our web site. The slide is to give you some perspective of what is happening in these markets, since you probably will get a number of calls from local residents about their heating fuels bills

487

Switchable heat pipe assembly  

SciTech Connect

The heat pipe assembly is formed into an H-shape or a Y-shape. The H-shaped configuration comprises two heat pipes, each having condenser and evaporator sections with wicking therein coupled by a tube with wick at their evaporator sections. The Y-shaped configuration utilizes a common evaporator section in place of the two evaporator sections of the H-shaped configuration. In both configurations, the connection between the vapor spaces of the two heat pipes equalizes vapor pressure within the heat pipes. Although both heat pipes have wicks, they have sufficient fluid only to saturate a single pipe. If hea