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1

Solar Thermal Process Heat | Open Energy Information  

Open Energy Info (EERE)

Process Heat Jump to: navigation, search TODO: Add description List of Solar Thermal Process Heat Incentives Retrieved from "http:en.openei.orgwindex.php?titleSolarThermalPr...

2

List of Solar Thermal Process Heat Incentives | Open Energy Information  

Open Energy Info (EERE)

Process Heat Incentives Process Heat Incentives Jump to: navigation, search The following contains the list of 204 Solar Thermal Process Heat Incentives. CSV (rows 1 - 204) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active 30% Business Tax Credit for Solar (Vermont) Corporate Tax Credit Vermont Commercial Industrial Photovoltaics Solar Space Heat Solar Thermal Electric Solar Thermal Process Heat Solar Water Heat No APS - Renewable Energy Incentive Program (Arizona) Utility Rebate Program Arizona Commercial Residential Anaerobic Digestion Biomass Daylighting Geothermal Electric Ground Source Heat Pumps Landfill Gas Other Distributed Generation Technologies Photovoltaics Small Hydroelectric Solar Pool Heating Solar Space Heat Solar Thermal Process Heat

3

Value of solar thermal industrial process heat  

DOE Green Energy (OSTI)

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

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

1986-03-01T23:59:59.000Z

4

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

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

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

5

Minnesota Power - Solar-Thermal Water Heating Rebate Program | Department  

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

Minnesota Power - Solar-Thermal Water Heating Rebate Program Minnesota Power - Solar-Thermal Water Heating Rebate Program Minnesota Power - Solar-Thermal Water Heating Rebate Program < Back Eligibility Commercial Industrial Low-Income Residential Multi-Family Residential Residential Savings Category Heating & Cooling Solar Water Heating Maximum Rebate Single-family unit: $2,000 Two- to three-family units: $4,000 Multi-family units (four or more): $10,000 Businesses: $25,000 Program Info Start Date 03/2010 Expiration Date 12/31/2013 State Minnesota Program Type Utility Rebate Program Rebate Amount 25% of costs Provider Minnesota Power Minnesota Power offers a 25% rebate for qualifying solar thermal water heating systems. The maximum award for single-family customers is $2,000 per customer; $4,000 for 2-3 family unit buildings; $10,000 for buildings

6

Thermal Solar Energy Systems for Space Heating of Buildings  

E-Print Network (OSTI)

In this study, the simulation and the analysis of a solar flat plate collectors combined with a compression heat pump is carried out. The system suggested must ensure the heating of a building without the recourse to an auxiliary energy source in complement of this heating system. The system is used to heat a building using heating floor. The building considered is located in Constantine-East of Algeria (Latitude 36.28 N, Longitude 6.62 E, Altitude 689m). For the calculation, the month of February was chosen, which is considered as the coldest month according to the weather data of Constantine. The performances of this system were compared to the performances of the traditional solar heating system using solar collectors and an auxiliary heating load to compensate the deficit. In this case a traditional solar heating system having the same characteristics with regard to the solar collecting area and the volume of storage tank is used. It can be concluded that the space heating system using a solar energy combined with heat pump improve the thermal performance of the heat pump and the global system. The performances of the heating system combining heat pump and solar collectors are higher than that of solar heating system with solar collectors and storage tank. The heat pump assisted by solar energy can contribute to the conservation of conventional energy and can be competitive with the traditional systems of heating.

Gomri, R.; Boulkamh, M.

2010-01-01T23:59:59.000Z

7

Latent Heat Thermal Energy Storage with Embedded Heat Pipes for Concentrating Solar Power Applications.  

E-Print Network (OSTI)

?? An innovative, novel concept of combining heat pipes with latent heat thermal energy storage (LHTES) for concentrating solar power (CSP) applications is explored. The… (more)

Robak, Christopher

2012-01-01T23:59:59.000Z

8

Design and operation of solar thermal heat transfer systems  

Science Conference Proceedings (OSTI)

The importance of heat transfer systems in the collection and use of solar energy is discussed. The success or failure of many solar energy systems has been determined by the design of the heat transfer system. This report includes a short summary of some of the DOE sponsored solar industrial process heat sites. From the design, construction, and operation of these systems many lessons were learned which will be important to designers and potential users of solar thermal systems. Also included is a discussion of solar collector foundation over-design that has increased the collector system costs.

Rush, E.E.

1985-01-01T23:59:59.000Z

9

Distributed Solar-Thermal Combined Heat and Power  

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

Distributed Solar-Thermal Combined Heat and Power Speaker(s): Zack Norwood Date: February 22, 2007 - 12:00pm Location: 90-3122 This seminar will examine the potential for the mild...

10

High Operating Temperature Heat Transfer Fluids for Solar Thermal...  

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

Heat Transfer Fluids for Solar Thermal Power Generation UCLA, UCB, Yale Award Number: DE-EE0005941 | January 9, 2013 | Sungtaek Ju 1.1 Thermochemistry modeling Identified promising...

11

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

12

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

13

Viability Of Hybrid Ground Source Heat Pump System With Solar Thermal Collectors.  

E-Print Network (OSTI)

??This thesis presents a study for examining the viability of hybrid ground source heat pump (GSHP) systems that use solar thermal collectors as the supplemental… (more)

Rad, Farzin M.

2009-01-01T23:59:59.000Z

14

Potential of thermal insulation and solar thermal energy in domestic hot water and space heating and cooling sectors in Lebanon in the period 2010 - 2030.  

E-Print Network (OSTI)

??The potential of thermal insulation and solar thermal energy in domestic water heating, space heating and cooling in residential and commercial buildings Lebanon is studied… (more)

Zaatari, Z.A.R.

2012-01-01T23:59:59.000Z

15

The Added Economic and Environmental Value of Solar Thermal Systems in Microgrids with Combined Heat and Power  

E-Print Network (OSTI)

N. et al. , (2007), “Microgrids, An Overview of OngoingSolar Thermal Systems in Microgrids with Combined Heat andSolar Thermal Systems in Microgrids with Combined Heat and

Marnay, Chris

2010-01-01T23:59:59.000Z

16

The Added Economic and Environmental Value of Solar Thermal Systems in Microgrids with Combined Heat and Power  

E-Print Network (OSTI)

solar thermal systems, which can be used for domestic hot water, space heatingsolar thermal systems, which can be used for domestic hot water, space heating

Marnay, Chris

2010-01-01T23:59:59.000Z

17

Simple procedure for assessing thermal comfort in passive solar heated buildings  

DOE Green Energy (OSTI)

The Fanger thermal comfort equation is linearized and used to develop a procedure for assessing thermal comfort levels in passive solar heated buildings. In order to relate comfort levels in nonuniform environments to uniform conditions, a new thermal index called the equivalent uniform temperature is introduced.

Wray, W.O.

1979-01-01T23:59:59.000Z

18

Thermal and cost goal analysis for passive solar heating designs  

DOE Green Energy (OSTI)

Economic methodologies developed over the past several years for the design of residential solar systems have been based on life cycle cost (LCC) minimization. Because of uncertainties involving future economic conditions and the varied decision making processes of home designers, builders, and owners, LCC design approaches are not always appropriate. To deal with some of the constraints that enter the design process, and to narrow the number of variables to those that do not depend on future economic conditions, a simplified thermal and cost goal approach for passive designs is presented. Arithmetic and graphical approaches are presented with examples given for each. Goals discussed include simple payback, solar savings fraction, collection area, maximum allowable construction budget, variable cost goals, and Btu savings.

Noll, S.A.; Kirschner, C.

1980-01-01T23:59:59.000Z

19

Solar thermal aircraft  

DOE Patents (OSTI)

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

Bennett, Charles L. (Livermore, CA)

2007-09-18T23:59:59.000Z

20

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

Note: This page contains sample records for the topic "heat solar thermal" 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

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

22

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

23

Experimental investigation on the photovoltaic-thermal solar heat pump air-conditioning system on water-heating mode  

Science Conference Proceedings (OSTI)

An experimental study on operation performance of photovoltaic-thermal solar heat pump air-conditioning system was conducted in this paper. The experimental system of photovoltaic-thermal solar heat pump air-conditioning system was set up. The performance parameters such as the evaporation pressure, the condensation pressure and the coefficient of performance (COP) of heat pump air-conditioning system, the water temperature and receiving heat capacity in water heater, the photovoltaic (PV) module temperature and the photovoltaic efficiency were investigated. The experimental results show that the mean photovoltaic efficiency of photovoltaic-thermal (PV/T) solar heat pump air-conditioning system reaches 10.4%, and can improve 23.8% in comparison with that of the conventional photovoltaic module, the mean COP of heat pump air-conditioning system may attain 2.88 and the water temperature in water heater can increase to 42 C. These results indicate that the photovoltaic-thermal solar heat pump air-conditioning system has better performances and can stably work. (author)

Fang, Guiyin; Hu, Hainan; Liu, Xu [Department of Physics, Nanjing University, Nanjing 210093 (China)

2010-09-15T23:59:59.000Z

24

Development of an integrated heat pipe-thermal storage system for a solar receiver  

SciTech Connect

The Organic Rankine Cycle (ORC) Solar Dynamic Power System (SDPS) is one of the candidates for Space Station prime power application. In the low earth orbit of the Space Station approximately 34 minutes of the 94-minute orbital period is spent in eclipse with no solar energy input to the power system. For this period the SDPS will use thermal energy storage (TES) material to provide a constant power output. Sundstrand Corporation is developing a ORC-SDPS candidate for the Space Station that uses toluene as the organic fluid and LiOH as the TES material. An integrated heat-pipe thermal storage receiver system is being developed as part of the ORC-SDPS solar receiver. This system incorporates potassium heat pipe elements to absorb and transfer the solar energy within the receiver cavity. The heat pipes contain the TES canisters within the potassium vapor space with the toluene heater tube used as the condenser region of the heat pipe. During the insolation period of the earth orbit, solar energy is delivered to the heat pipe in the ORC-SDPS receiver cavity. The heat pipe transforms the non-uniform solar flux incident in the heat pipe surface within the receiver cavity to an essentially uniform flux at the potassium vapor condensation interface in the heat pipe. During solar insolation, part of the thermal energy is delivered to the heater tube and the balance is stored in the TES units. During the eclipse period of the orbit, the balance stored in the TES units is transferred by the potassium vapor to the toluene heater tube. 3 refs., 8 figs.

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

1987-01-01T23:59:59.000Z

25

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

26

Investigation of new heat exchanger design performance for solar thermal chemical heat pump.  

E-Print Network (OSTI)

?? The emergence of Thermally Driven Cooling system has received more attention recently due to its ability to utilize low grade heat from engine, incinerator… (more)

Cordova, Cordova

2013-01-01T23:59:59.000Z

27

Interaction of a solar space heating system with the thermal behavior of a building  

DOE Green Energy (OSTI)

The thermal behavior of a building in response to heat input from an active solar space heating system is analyzed to determine the effect of the variable storage tank temperature on the cycling rate, on-time, and off-time of a heating cycle and on the comfort characteristics of room air temperature swing and of offset of the average air temperature from the setpoint (droop). A simple model of a residential building, a fan coil heat-delivery system, and a bimetal thermostat are used to describe the system. A computer simulation of the system behavior has been developed and verified by comparisons with predictions from previous studies. The system model and simulation are then applied to determine the building response to a typical hydronic solar heating system for different solar storage temperatures, outdoor temperatures, and fan coil sizes. The simulations were run only for those cases where there was sufficient energy from storage to meet the building load requirements.

Vilmer, C.; Warren, M.L.; Auslander, D.

1980-12-01T23:59:59.000Z

28

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

29

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

30

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network (OSTI)

stores or releases thermal energy. This subsystem consistsGas - 436 MW Annual Thermal Energy Absorbed by the Heatof Storage Tanks, m Thermal Energy Stored per Cycle. MW -hr

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

31

Solar Thermal Conversion  

DOE Green Energy (OSTI)

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

Kreith, F.; Meyer, R. T.

1982-11-01T23:59:59.000Z

32

A17: Heat Capacity and Thermal Expansion Measurements of Solar ...  

Science Conference Proceedings (OSTI)

One of the main tasks for getting reliable cp and enthalpy data of solar salts is therefore to find the right measurement parameters and crucible material/salt ...

33

INTERACTION OF A SOLAR SPACE HEATING SYSTEM WITH THE THERMAL BEHAVIOR OF A BUILDING  

E-Print Network (OSTI)

to a typical h"ydronic solar heating system for differentlarger by the active solar heating system. its, Schiller,Klein, and J, A. Duffie, "Solar Heating Design", (New York:

Vilmer, Christian

2013-01-01T23:59:59.000Z

34

INTERACTION OF A SOLAR SPACE HEATING SYSTEM WITH THE THERMAL BEHAVIOR OF A BUILDING  

E-Print Network (OSTI)

determine the building response to the solar heating system.on building comfort of an active solar heating system wherethe building response to a typical h"ydronic solar heating

Vilmer, Christian

2013-01-01T23:59:59.000Z

35

Design, cost, and performance comparisons of several solar thermal systems for process heat. Volume III. Receivers  

DOE Green Energy (OSTI)

The receiver subsystem converts reflected solar radiation into thermal power by heating a working fluid. The objective of the task described was to estimate the cost and performance of the receiver subsystem for parabolic troughs, parabolic dishes, and central receivers over a wide range of temperatures and power levels for thermal power applications. This volume presents the fundamental design philosophy employed, the constraints identified, the tradeoffs performed and the cost and performance results obtained for each receiver in the study matrix.

Woodard, J.B. Jr.

1981-03-01T23:59:59.000Z

36

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

37

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

38

Gulf Power - Solar Thermal Water Heating Pilot Program (Florida...  

Open Energy Info (EERE)

Clean Energy Analysis Low Emission Development Strategies Oil & Gas Smart Grid Solar U.S. OpenLabs Utilities Water Wind Page Actions View form View source History View New...

39

SENSIBLE HEAT STORAGE FOR A SOLAR THERMAL POWER PLANT  

E-Print Network (OSTI)

788-1), December 1976. Electric Power Research Institute,CONCEPT FOR SOLAR ELECTRIC POWER: Interim Report, Report No.generate t 100 MW , gross electric power. e Storage has been

Baldwin, Thomas F.

2011-01-01T23:59:59.000Z

40

Gulf Power - Solar Thermal Water Heating Program (Florida) |...  

Open Energy Info (EERE)

Low Emission Development Strategies Oil & Gas Smart Grid Solar U.S. OpenLabs Utilities Water Wind Page Actions View form View source History View New Pages Recent Changes All...

Note: This page contains sample records for the topic "heat solar thermal" 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

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

42

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

43

Solar heat pipe testing of the Stirling thermal motors 4-120 Stirling engine  

DOE Green Energy (OSTI)

Stirling-cycle engines have been identified as a promising technology for the conversion of concentrated solar energy into usable electrical power. A 25kW electric system takes advantage of existing Stirling-cycle engines and existing parabolic concentrator designs. In previous work, the concentrated sunlight impinged directly on the heater head tubes of the Stirling Thermal Motors (STM) 4-120 engine. A Sandia-designed felt-metal-wick heat pipe receiver was fitted to the STM 4-120 engine for on-sun testing on Sandia`s Test Bed Solar Concentrator. The heat pipe uses sodium metal as an intermediate two-phase heat transfer fluid. The receiver replaces the directly-illuminated heater head previously tested. The heat pipe receiver provides heat isothermally to the engine, and the heater head tube length is reduced, both resulting in improved engine performance. The receiver also has less thermal losses than the tube receiver. The heat pipe receiver design is based on Sandia`s second-generation felt-wick heat pipe receiver. This paper presents the interface design, and compares the heat pipe/engine test results to those of the directly-illuminated receiver/engine package.

Andraka, C.E.; Rawlinson, K.S.; Moss, T.A.; Adkins, D.R.; Moreno, J.B.; Gallup, D.R.; Cordeiro, P.G. [Sandia National Labs., Albuquerque, NM (United States); Johansson, S. [Stirling Thermal Motors, Inc., Ann Arbor, MI (United States)

1996-07-01T23:59:59.000Z

44

HEATING THE SOLAR ATMOSPHERE BY THE SELF-ENHANCED THERMAL WAVES CAUSED BY THE DYNAMO PROCESSES  

SciTech Connect

We discuss a possible mechanism for heating the solar atmosphere by the ensemble of thermal waves, generated by the photospheric dynamo and propagating upward with increasing magnitudes. These waves are self-sustained and amplified due to the specific dependence of the efficiency of heat release by Ohmic dissipation on the ratio of the collisional to gyrofrequencies, which in its turn is determined by the temperature profile formed in the wave. In the case of sufficiently strong driving, such a mechanism can increase the plasma temperature by a few times, i.e., it may be responsible for heating the chromosphere and the base of the transition region.

Dumin, Yurii V., E-mail: dumin@yahoo.com, E-mail: dumin@izmiran.ru [Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation (IZMIRAN), Russian Academy of Sciences, Troitsk, Moscow reg., 142190 (Russian Federation)

2012-05-20T23:59:59.000Z

45

Convection heat loss from cavity receiver in parabolic dish solar thermal power system: A review  

SciTech Connect

The convection heat loss from cavity receiver in parabolic dish solar thermal power system can significantly reduce the efficiency and consequently the cost effectiveness of the system. It is important to assess this heat loss and subsequently improve the thermal performance of the receiver. This paper aims to present a comprehensive review and systematic summarization of the state of the art in the research and progress in this area. The efforts include the convection heat loss mechanism, experimental and numerical investigations on the cavity receivers with varied shapes that have been considered up to date, and the Nusselt number correlations developed for convection heat loss prediction as well as the wind effect. One of the most important features of this paper is that it has covered numerous cavity literatures encountered in various other engineering systems, such as those in electronic cooling devices and buildings. The studies related to those applications may provide valuable information for the solar receiver design, which may otherwise be ignored by a solar system designer. Finally, future development directions and the issues that need to be further investigated are also suggested. It is believed that this comprehensive review will be beneficial to the design, simulation, performance assessment and applications of the solar parabolic dish cavity receivers. (author)

Wu, Shuang-Ying; Xiao, Lan; Li, You-Rong [College of Power Engineering, Chongqing University, Chongqing 400044 (China); Cao, Yiding [Department of Mechanical and Materials Engineering, Florida International University, Miami, FL 33174 (United States)

2010-08-15T23:59:59.000Z

46

Economic status and prospects of solar thermal industrial heat  

DOE Green Energy (OSTI)

This paper provides estimates of the levelized energy cost (LEC) of a mid-temperature parabolic trough system for three different development scenarios. A current technology case is developed that is representative of recent designs and costs for commercial systems, and is developed using data from a recent system installed in Tehachapi, California. The second scenario looks at design enhancements to the currenttechnology case as a way to increase annual energy output and decrease costs. The third scenario uses the annual energy output of the enhanced design, but allows for cost reductions that would be possible in higher volume production than currently exist. A simulation model was used to estimate the annual energy output from the system, and the results were combined with cost data in an economic analysis model. The study indicates that R D improvements in the current trough system show promise of reducing the (LEC) by about 40%. At higher production rates, the LEC of the solar system with R D improvements could potentially be reduced by over 50%.

Williams, T.A.; Hale, M.J.

1992-12-01T23:59:59.000Z

47

Economic status and prospects of solar thermal industrial heat  

DOE Green Energy (OSTI)

This paper provides estimates of the levelized energy cost (LEC) of a mid-temperature parabolic trough system for three different development scenarios. A current technology case is developed that is representative of recent designs and costs for commercial systems, and is developed using data from a recent system installed in Tehachapi, California. The second scenario looks at design enhancements to the currenttechnology case as a way to increase annual energy output and decrease costs. The third scenario uses the annual energy output of the enhanced design, but allows for cost reductions that would be possible in higher volume production than currently exist. A simulation model was used to estimate the annual energy output from the system, and the results were combined with cost data in an economic analysis model. The study indicates that R&D improvements in the current trough system show promise of reducing the (LEC) by about 40%. At higher production rates, the LEC of the solar system with R&D improvements could potentially be reduced by over 50%.

Williams, T.A.; Hale, M.J.

1992-12-01T23:59:59.000Z

48

Solar Thermal Technologies - Energy Innovation Portal  

Solar Thermal Technology Marketing Summaries Here you'll find marketing summaries of concentrating solar power and solar heating technologies available for licensing ...

49

Development and testing of thermal-energy-storage modules for use in active solar heating and cooling systems. Final report  

DOE Green Energy (OSTI)

Additional development work on thermal-energy-storage modules for use with active solar heating and cooling systems is summarized. Performance testing, problems, and recommendations are discussed. Installation, operation, and maintenance instructions are included. (MHR)

Parker, J.C.

1981-04-01T23:59:59.000Z

50

The Added Economic and Environmental Value of Solar Thermal Systems in Microgrids with CombinedHeat and Power  

Science Conference Proceedings (OSTI)

The addition of solar thermal and heat storage systems can improve the economic, as well as environmental attraction of micro-generation systems, e.g. fuel cells with or without combined heat and power (CHP) and contribute to enhanced CO2 reduction. However, the interactions between solar thermal collection and storage systems and CHP systems can be complex, depending on the tariff structure, load profile, etc. In order to examine the impact of solar thermal and heat storage on CO2 emissions and annual energy costs, a microgrid's distributed energy resources (DER) adoption problem is formulated as a mixed-integer linear program. The objective is minimization of annual energy costs. This paper focuses on analysis of the optimal interaction of solar thermal systems, which can be used for domestic hot water, space heating and/or cooling, and micro-CHP systems in the California service territory of San Diego Gas and Electric (SDG&E). Contrary to typical expectations, our results indicate that despite the high solar radiation in southern California, fossil based CHP units are dominant, even with forecast 2020 technology and costs. A CO2 pricing scheme would be needed to incent installation of combined solar thermal absorption chiller systems, and no heat storage systems are adopted. This research also shows that photovoltaic (PV) arrays are favored by CO2 pricing more than solar thermal adoption.

Marnay, Chris; Stadler, Michael; Cardoso, Goncalo; Megel, Olivier; Lai, Judy; Siddiqui, Afzal

2009-08-15T23:59:59.000Z

51

A NEW SOLAR THERMAL RECEIVER UTILIZING A SMALL PARTICLE HEAT EXCHANGER  

E-Print Network (OSTI)

of advanced concept solar power plants. For conditions offor the operation of a solar power plant is very small.success of the solar thermal electric power program rests on

Hunt, Arlon J.

2011-01-01T23:59:59.000Z

52

Heating the Solar Atmosphere by the Self-Enhanced Thermal Waves Caused by the Dynamo Processes  

E-Print Network (OSTI)

We discuss a possible mechanism for heating the solar chromosphere and lower part of the transition region by the ensemble of thermal waves, generated by the photospheric dynamo and propagating upwards with increasing magnitudes. These waves are self-sustained and amplified due to the specific dependence of the efficiency of heat release by Ohmic dissipation on the ratio of the collisional to gyro- frequencies, which in its turn is determined by the temperature profile formed in the wave. In the case of sufficiently strong driving, such a mechanism can increase the plasma temperature by an order of magnitude, i.e. it may be responsible for heating the chromosphere and the lower part of the transition region.

Dumin, Yurii V

2012-01-01T23:59:59.000Z

53

INTERACTION OF A SOLAR SPACE HEATING SYSTEM WITH THE THERMAL BEHAVIOR OF A BUILDING  

E-Print Network (OSTI)

Pant Rfict Fan coil heat exchanger effectiveness. c min Fanis modeled as a fan-coil heat exchanger. The fan coil outputsystem with a fan-coil heat exchanger sized for a solar

Vilmer, Christian

2013-01-01T23:59:59.000Z

54

Economic analysis of community solar heating systems that use annual cycle thermal energy storage  

DOE Green Energy (OSTI)

The economics of community-scale solar systems that incorporate a centralized annual cycle thermal energy storage (ACTES) coupled to a distribution system is examined. Systems were sized for three housing configurations: single-unit dwellings, 10-unit, and 200-unit apartment complexes in 50-, 200-, 400-, and 1000-unit communities in 10 geographic locations in the United States. Thermal energy is stored in large, constructed, underground tanks. Costs were assigned to each component of every system in order to allow calculation of total costs. Results are presented as normalized system costs per unit of heat delivered per building unit. These methods allow: (1) identification of the relative importance of each system component in the overall cost; and (2) identification of the key variables that determine the optimum sizing of a district solar heating system. In more northerly locations, collectors are a larger component of cost. In southern locations, distribution networks are a larger proportion of total cost. Larger, more compact buildings are, in general, less expensive to heat. For the two smaller-scale building configurations, a broad minima in total costs versus system size is often observed.

Baylin, F.; Monte, R.; Sillman, S.; Hooper, F.C.; McClenahan, J.D.

1981-02-01T23:59:59.000Z

55

Thermal analysis of heat storage canisters for a solar dynamic, space power system  

DOE Green Energy (OSTI)

A thermal analysis was performed of a thermal energy storage canister of a type suggested for use in a solar receiver for an orbiting Brayton cycle power system. Energy storage for the eclipse portion of the cycle is provided by the latent heat of a eutectic mixture of LiF and CaF/sub 2/ contained in the canister. The chief motivation for the study is the prediction of vapor void effects on temperature profiles and the identification of possible differences between ground test data and projected behavior in microgravity. The first phase of this study is based on a two-dimensional, cylindrical coordinates model using an interim procedure for describing void behavior in 1/minus/g and microgravity. The thermal anaylsis includes the effects of solidification front behavior, conduction in liquid/solid salt and canister materials, void growth and shrinkage, radiant heat transfer across the void, and convection in the melt due to Marangoni-induced flow and, in 1/minus/g, flow due to density gradients. A number of significant differences between 1/minus/g and 0/minus/g behavior were found. These resulted from differences in void location relative to the maximum heat flux and a significantly smaller effective conductance in 0/minus/g due to the absence of gravity-induced convection.

Wichner, R.P.; Solomon, A.D.; Drake, J.B.; Williams, P.T.

1988-04-01T23:59:59.000Z

56

A solar thermal cooling and heating system for a building: Experimental and model based performance analysis and design  

Science Conference Proceedings (OSTI)

A solar thermal cooling and heating system at Carnegie Mellon University was studied through its design, installation, modeling, and evaluation to deal with the question of how solar energy might most effectively be used in supplying energy for the operation of a building. This solar cooling and heating system incorporates 52 m{sup 2} of linear parabolic trough solar collectors; a 16 kW double effect, water-lithium bromide (LiBr) absorption chiller, and a heat recovery heat exchanger with their circulation pumps and control valves. It generates chilled and heated water, dependent on the season, for space cooling and heating. This system is the smallest high temperature solar cooling system in the world. Till now, only this system of the kind has been successfully operated for more than one year. Performance of the system has been tested and the measured data were used to verify system performance models developed in the TRaNsient SYstem Simulation program (TRNSYS). On the basis of the installed solar system, base case performance models were programmed; and then they were modified and extended to investigate measures for improving system performance. The measures included changes in the area and orientation of the solar collectors, the inclusion of thermal storage in the system, changes in the pipe diameter and length, and various system operational control strategies. It was found that this solar thermal system could potentially supply 39% of cooling and 20% of heating energy for this building space in Pittsburgh, PA, if it included a properly sized storage tank and short, low diameter connecting pipes. Guidelines for the design and operation of an efficient and effective solar cooling and heating system for a given building space have been provided. (author)

Qu, Ming [School of Civil Engineering, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907-2051 (United States); Yin, Hongxi [School of Engineering Education, Purdue University, 701 W. Stadium Ave., West Lafayette, IN 47907-2061 (United States); Archer, David H. [Department of Mechanical Engineering, Carnegie Mellon University, 5000 Forbes Ave., Pittsburgh, PA 15213 (United States)

2010-02-15T23:59:59.000Z

57

Clay Electric Cooperative, Inc - Solar Thermal Loans | Department...  

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

Clay Electric Cooperative, Inc - Solar Thermal Loans Clay Electric Cooperative, Inc - Solar Thermal Loans Eligibility Residential Savings For Heating & Cooling Solar Swimming Pool...

58

Waverly Light & Power - Residential Solar Thermal Rebates | Department...  

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

Waverly Light & Power - Residential Solar Thermal Rebates Waverly Light & Power - Residential Solar Thermal Rebates Eligibility Residential Savings For Heating & Cooling Solar...

59

Advanced technology thermal energy storage and heat exchange systems for solar applications: a survey of current research  

DOE Green Energy (OSTI)

A survey is presented of the advanced research and development projects underway in the U.S. in all of the known media and methods for storing and transferring thermal energy in solar applications. The technologies reviewed include innovative heat exchange and heat transport methods, advanced sensible heat storage in water, rocks, earth and combinations of these for both short term and annual storage, phase change materials, and reversible chemical reactions. This survey is presented in a structure of categories and subcategories of thermal energy storage and heat transfer technology. Within a given subcategory the project descriptions are listed under the name of the organizations conducting the work, arranged in alphabetical order.

Michaels, A. I.

1978-01-01T23:59:59.000Z

60

List of Solar Space Heat Incentives | Open Energy Information  

Open Energy Info (EERE)

Space Heat Incentives Space Heat Incentives Jump to: navigation, search The following contains the list of 499 Solar Space Heat Incentives. CSV (rows 1 - 499) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active 30% Business Tax Credit for Solar (Vermont) Corporate Tax Credit Vermont Commercial Industrial Photovoltaics Solar Space Heat Solar Thermal Electric Solar Thermal Process Heat Solar Water Heat No APS - Renewable Energy Incentive Program (Arizona) Utility Rebate Program Arizona Commercial Residential Anaerobic Digestion Biomass Daylighting Geothermal Electric Ground Source Heat Pumps Landfill Gas Other Distributed Generation Technologies Photovoltaics Small Hydroelectric Solar Pool Heating Solar Space Heat Solar Thermal Process Heat Solar Water Heat

Note: This page contains sample records for the topic "heat solar thermal" 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

Rankine cycle energy conversion system design considerations for low and intermediate temperature sensible heat sources. Geothermal, waste heat, and solar thermal conversion  

DOE Green Energy (OSTI)

Design considerations are described for energy conversion systems for low and intermediate temperature sensible heat sources such as found in geothermal, waste heat, and solar-thermal applications. It is concluded that the most cost effective designs for the applications studied did not require the most efficient thermodynamic cycle, but that the efficiency of the energy conversion hardware can be a key factor.

Abbin, J.P. Jr.

1976-10-01T23:59:59.000Z

62

Investigation of a novel façade-based solar loop heat pipe water heating system.  

E-Print Network (OSTI)

??Solar thermal is one of the most cost-effective renewable energy technologies, and solar water heating is one of the most popular solar thermal systems. Based… (more)

Wang, Zhangyuan

2012-01-01T23:59:59.000Z

63

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

64

Advanced solar thermal technology  

SciTech Connect

The application of dish solar collectors to industrial process heat (IPH) has been reviewed. IPH represents a market for displacement of fossil fuels (10 quads/y). A 10% market penetration would indicate a substantial market for solar thermal systems. Apparently, parabolic dish systems can produce IPH at a lower cost than that of troughs or compound parabolic concentrators, even though dish fabrication costs per unit area are more expensive. Successful tests of point-focusing collectors indicate that these systems can meet the energy requirements for process heat applications. Continued efforts in concentrator and transport technology development are needed. 7 figures.

Leibowitz, L.P.; Hanseth, E.; Liu, T.M.

1982-06-01T23:59:59.000Z

65

Simple empirical method for estimating the performance of a passive solar heated building of the thermal storage wall type  

DOE Green Energy (OSTI)

Two methods are presented for estimating the annual solar heating performance of a building utilizing a passive thermal storage wall of the Trombe wall or water wall type with or without night insulation and with or without a reflector. The method is accurate to +-3% as compared with hour-by-hour computer simulations.

Balcomb, J.D.; McFarland, R.D.

1978-01-01T23:59:59.000Z

66

Solar thermal electric hybridization issues  

DOE Green Energy (OSTI)

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

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

1994-10-01T23:59:59.000Z

67

Thermal Management of Solar Cells  

E-Print Network (OSTI)

as a source of photovoltaic energy is rapidly increasingphotovoltaic cells under concentrated illumination: a critical review," Solar Energyphotovoltaic/thermal collector, PV/T, and it utilizes both electrical and heat energies

Saadah, Mohammed Ahmed

2013-01-01T23:59:59.000Z

68

Passive solar heating of buildings  

DOE Green Energy (OSTI)

Passive solar heating concepts--in which the thermal energy flow is by natural means--are described according to five general classifications: direct gain, thermal storage wall, solar greenhouses, roof ponds, and convective loops. Examples of each are discussed. Passive test rooms built at Los Alamos are described and results are presented. Mathematical simulation techniques based on thermal network analysis are given together with validation comparisons against test room data. Systems analysis results for 29 climates are presented showing that the concepts should have wide applicability for solar heating.

Balcomb, J.D.; Hedstrom, J.C.; McFarland, R.D.

1977-01-01T23:59:59.000Z

69

2 Technology Description: Solar Thermal Parabolic Trough Solar Thermal  

E-Print Network (OSTI)

– Parabolic troughs track sun, concentrate incident light onto a centralized, tubular receiver that runs length of each trough – Thermal fluid circulates through all receivers in solar field – Thermal fluid brought to one or more centralized power production facilities – Heat transferred to a steam cycle, drives a steam turbine to generate power – Cooled thermal fluid is then recirculated th through h solar fi field ld – Wet cooling is common, dry cooling possible

Timothy J. Skone; Risks Of Implementation

2012-01-01T23:59:59.000Z

70

Solar Thermal Fact Sheet Harvard Green Campus Initiative  

E-Print Network (OSTI)

Solar Thermal Fact Sheet Harvard Green Campus Initiative What is Solar Thermal? Solar thermal is often overlooked as a renewable energy technol- ogy, despite its potential. Solar thermal technology produces heat energy, as opposed to solar photovoltaics (PV), which pro- duce electricity. Solar thermal

Paulsson, Johan

71

Concentrating Solar Thermal Technology  

Science Conference Proceedings (OSTI)

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

2009-03-27T23:59:59.000Z

72

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

73

Active Solar Heating | Department of Energy  

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

Active Solar Heating Active Solar Heating Active Solar Heating June 24, 2012 - 5:58pm Addthis This North Carolina home gets most of its space heating from the passive solar design, but the solar thermal system supplies both domestic hot water and a secondary radiant floor heating system. | Photo courtesy of Jim Schmid Photography, NREL This North Carolina home gets most of its space heating from the passive solar design, but the solar thermal system supplies both domestic hot water and a secondary radiant floor heating system. | Photo courtesy of Jim Schmid Photography, NREL What does this mean for me? If you live in a cold climate and have unobstructed access to the sun during the heating season, an active solar heating system might make sense for you. You can buy a manufactured active solar system or build your own.

74

The Added Economic and Environmental Value of Solar Thermal Systems...  

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

and Environmental Value of Solar Thermal Systems in Microgrids with Combined Heat and Power Title The Added Economic and Environmental Value of Solar Thermal Systems in...

75

Active solar thermal design manual  

SciTech Connect

This manual is aimed at systems design engineers, architects, system supplier/installers, and contractor/builders. Practical information for both skilled and inexperienced designers. Solar thermal applications focuses on residential and commercial space heating, potable hot water heating, process water heating, and space cooling.

1985-01-01T23:59:59.000Z

76

Direct-contact air/molten salt heat exchange for solar-thermal systems  

DOE Green Energy (OSTI)

Heat exchangers employing direct contact between molten draw salt and air were studied for use in solar industrial process heat (IPH) systems. Direct-contact systems consisting of a fin-tube preheater and a spray or packed column were compared to conventional heat exchangers. Direct contact reduced the IPH system cost by 5% to 10%. The direct-contact heat exchangers cost only 15% to 30% as much as comparable conventional exchangers. However, the rate of salt degradation by CO/sup 2/ and H/sub 2/O must be determined to see if it is acceptable.

Wright, J.D.; d'Agincourt, C.

1982-05-01T23:59:59.000Z

77

California Solar Initiative - Solar Thermal Program | Department...  

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

Solar Thermal Program California Solar Initiative - Solar Thermal Program Eligibility Commercial Fed. Government Industrial Local Government Low-Income Residential Multi-Family...

78

Solar Heating Contractor Licensing  

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

Michigan offers a solar heating contractor specialty license to individuals who have at least three years of experience installing solar equipment under the direction of a licensed solar contractor...

79

California Solar Initiative - Solar Thermal Program | Department of Energy  

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

California Solar Initiative - Solar Thermal Program California Solar Initiative - Solar Thermal Program California Solar Initiative - Solar Thermal Program < Back Eligibility Commercial Fed. Government Industrial Local Government Low-Income Residential Multi-Family Residential Nonprofit Residential Schools State Government Savings Category Heating & Cooling Solar Swimming Pool Heaters Water Heating Maximum Rebate Step 1 Incentive Limits (contact utility to determine current incentive limits): Single-family residential systems that displace natural gas: $2,719 Single-family residential systems that displace electricity or propane: $1,834 Commercial and multifamily residential systems that displace natural gas: $500,000 Commercial and multifamily residential systems that displace electricity or propane: $250,000

80

InterTechnology Corporation technology summary, solar heating and cooling. National Solar Demonstration Program  

DOE Green Energy (OSTI)

A summary of systems technology for solar-thermal heating and cooling of buildings is given. Solar collectors, control systems for solar heating and cooling, selective surfaces, thermal energy storage, solar-assisted heat pumps, and solar-powered cooling systems are discussed in detail. Also, an ITC specification for a solar control system is included. (WHK)

None

1976-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "heat solar thermal" 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

List of Solar Water Heat Incentives | Open Energy Information  

Open Energy Info (EERE)

Solar Water Heat Incentives Solar Water Heat Incentives Jump to: navigation, search The following contains the list of 920 Solar Water Heat Incentives. CSV (rows 1-500) CSV (rows 501-920) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active 30% Business Tax Credit for Solar (Vermont) Corporate Tax Credit Vermont Commercial Industrial Photovoltaics Solar Space Heat Solar Thermal Electric Solar Thermal Process Heat Solar Water Heat No APS - GEOSmart Financing Program (Arizona) Utility Loan Program Arizona Residential Solar Water Heat Photovoltaics No APS - Renewable Energy Incentive Program (Arizona) Utility Rebate Program Arizona Commercial Residential Anaerobic Digestion Biomass Daylighting Geothermal Electric Ground Source Heat Pumps Landfill Gas

82

The Added Economic and Environmental Value of Solar Thermal Systems in Microgrids with Combined Heat and Power  

E-Print Network (OSTI)

of combined solar thermal absorption chiller systems, and noon solar thermal and absorption chiller adoption in 2020,used to supply an absorption chiller. In the CO 2 price run,

Marnay, Chris

2010-01-01T23:59:59.000Z

83

Solar Thermal Group Australian National University  

E-Print Network (OSTI)

of Concentrated Solar Power Parabolic Troughs (Concentration Ratio ~ 80) #12;Solar Thermal Group AustralianC 500o C Solar Concentrator (Dish or Trough) Rebecca Dunn & Dr Keith Lovegrove rebecca Concentrating Solar Power ­ The Basics 1. Parabolic mirror. 2. Receiver at focus. 3. Solar Radiation heats fluid

84

Solar mechanics thermal response capabilities.  

DOE Green Energy (OSTI)

In many applications, the thermal response of structures exposed to solar heat loads is of interest. Solar mechanics governing equations were developed and integrated with the Calore thermal response code via user subroutines to provide this computational simulation capability. Solar heat loads are estimated based on the latitude and day of the year. Vector algebra is used to determine the solar loading on each face of a finite element model based on its orientation relative to the sun as the earth rotates. Atmospheric attenuation is accounted for as the optical path length varies from sunrise to sunset. Both direct and diffuse components of solar flux are calculated. In addition, shadowing of structures by other structures can be accounted for. User subroutines were also developed to provide convective and radiative boundary conditions for the diurnal variations in air temperature and effective sky temperature. These temperature boundary conditions are based on available local weather data and depend on latitude and day of the year, consistent with the solar mechanics formulation. These user subroutines, coupled with the Calore three-dimensional thermal response code, provide a complete package for addressing complex thermal problems involving solar heating. The governing equations are documented in sufficient detail to facilitate implementation into other heat transfer codes. Suggestions for improvements to the approach are offered.

Dobranich, Dean D.

2009-07-01T23:59:59.000Z

85

Thermal performance and economics of solar space and hot water heating system on Long Island, New York. [F-chart method  

DOE Green Energy (OSTI)

A practical method for designing solar space and water heating systems, called the ''f-chart'' method, is described with the results calculated for Long Island, New York. The solar heating systems to be considered consist of a solar collector which uses either liquid or air, an energy storage which can be either a water tank or a pebble bed, and an auxiliary energy source which supplies heat when solar energy is not available. Solar heated water from storage can be used either for space heating or for preheating the domestic hot water. The results of the ''f-chart'' analysis can simply be expressed as follows. For the thermal performance, Annual Load Fraction Supplied by Solar Energy versus Collector Area, and for the economic performance, Life Cycle Cost Savings versus Collector Area.

Auh, P C

1978-06-01T23:59:59.000Z

86

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

87

Energy Basics: Solar Air Heating  

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

EERE: Energy Basics Solar Air Heating Solar air heating systems use air as the working fluid for absorbing and transferring solar energy. Solar air collectors (devices to heat air...

88

Solar heating and you  

SciTech Connect

This fact sheet for use with primary school classes describes what solar collectors are and how they work, passive solar rooms, flat-plate collectors, and why one should use solar heating systems. Making a solar air heater is described step-by-step with illustrations. A resource list for both students and teachers is provided for further information.

1994-08-01T23:59:59.000Z

89

Thermal storage studies for solar heating and cooling: applications using chemical heat pumps. Final report, September 15, 1979-April 15, 1980  

DOE Green Energy (OSTI)

TRNSYS-compatible subroutines for the simulation of chemical heat pumps have been written, and simulations (including heating, cooling, and domestic hot water) have been performed for Washington, DC and Ft. Worth, Texas. Direct weekly comparisons of the H/sub 2/SO/sub 4//H/sub 2/O and CaCl/sub 2//CH/sub 3/OH cycles have been carried out. Projected performance of the NH/sub 4/NO/sub 3//NH/sub 3/ cycle has also been investigated, and found to be essentially identical to H/sub 2/SO/sub 4//H/sub 2/O. In all cases simulated, the solar collector is a fixed evacuated tube system, which is necessary because chemical heat pumps operate at higher solar collector temperatures (> 100/sup 0/C) than conventional solar systems. With standard residential loads, the chemical heat pumps performed surprisingly well. In the Ft. Worth climate, less than 45 m/sup 2/ of collectors were required to meet over 90% of the heating and cooling loads. In Washington, DC, the area required to meet the cooling load was smaller (as little as 20 m/sup 2/, depending on window shading), but was sufficient to meet only 50 to 60% of the heating load. However, gas-fired backup via the heat pump was quite effective in reducing fossil fuel consumption: the thermal COPs in the heating mode were in the range 1.6 to 1.7. Since chemical heat pumps are designed to reject heat at relatively high temperatures, they were also effective in providing domestic hot water, supplying ca. 70% of the DHW in summer, ca. 50% in winter, and nearly 100% in spring and fall.

Offenhartz, P O.D.

1981-04-01T23:59:59.000Z

90

Active and passive solar heating of buildings  

SciTech Connect

An overview of both active and passive solar heating approaches for buildings is presented. Passive solar heating concepts--in which the thermal energy flow is by natural means--are described according to five classifications: direct gain, thermal storage wall, solar greenhouses, roof ponds, and convective loops. Results of simulation analyses are presented for a variety of climates. Active systems utilizing both liquid-heating collectors and air-heating collectors are described. Trends in the recent development of solar heating are discussed.

Balcomb, J.D.

1977-01-01T23:59:59.000Z

91

A physical mechanism of solar corona heating  

E-Print Network (OSTI)

Time profiles of solar soft X-ray microflares and structure soft X-ray solar corona thermal background are studied on RHESSI data. The observations of 2003 year are analyzed. Decrease fluxe of solar soft X-ray microflares and thermal background of solar corona in the X-ray range 2-15 kev are revealed. The new model of solar corona heating in based on this new data are suggested.

Mirzoeva, I K

2011-01-01T23:59:59.000Z

92

Solar heating unit  

SciTech Connect

A solar heating unit is disclosed for disposition exteriorly of a building window for heating the air within the space interiorly of the window embodying a casing with a transverse divider for creating a rear passage and a front passage which are in communication in their lower portions. The upper end of the rear passage connects with the forward end of a rearwardly extending lower duct having a cool air inlet at the rearward end thereof. The upper end of the front passage connects with the forward end of an upper duct progressing rearwardly above the lower duct and with there being a warm air outlet at the rearward extremity thereof. A heat exchanger is disposed within the front passage for impingement thereon of solar radiation passing through a transparent panel defining the front of said casing. A thermal responsive closure is provided at the upper end of said front passage for closing same when the temperature within the front passage has descended to a predetermined level.

Grisbrook, R.B.

1978-10-24T23:59:59.000Z

93

Passive solar space heating  

DOE Green Energy (OSTI)

An overview of passive solar space heating is presented indicating trends in design, new developments, performance measures, analytical design aids, and monitored building results.

Balcomb, J.D.

1980-01-01T23:59:59.000Z

94

Solar Thermal Demonstration Project  

SciTech Connect

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

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

2012-01-30T23:59:59.000Z

95

Passive solar heating for buildings  

DOE Green Energy (OSTI)

A passive solar energy system is one in which the thermal energy flow is by natural means, that is by radiation, conduction, or natural convection. A survey of passive solar heating experience, especially in the U.S., is provided. Design approaches are reviewed and examples shown. Misconceptions are discussed. Advantages are listed. The Los Alamos program of performance simulation and evaluation is described and a simplified method of performance estimation is outlined.

Balcomb, J.D.

1979-01-01T23:59:59.000Z

96

Preliminary design of a solar thermal propulsion technology demonstration experiment.  

E-Print Network (OSTI)

??Solar thermal propulsion (STP) is an advanced space propulsion technology wherein solar power is used to directly heat the propellant. It potentially allows for achieving… (more)

GAETANO, ANTONIO

2009-01-01T23:59:59.000Z

97

Unglazed transpired solar collector having a low thermal ...  

An unglazed transpired solar collector using solar radiation to heat incoming air for distribution, comprising an unglazed absorber formed of low thermal-conductance ...

98

Integrated heat pipe-thermal storage design for a solar receiver. [Constant power source with heat from sun or from storage  

SciTech Connect

Light-weight heat pipe wall elements that incorporate a thermal storage subassembly within the vapor space are being developed as part of the Organic Rankine Cycle Solar Dynamic Power Systems (ORC-SDPS) receiver for the space station application. The operating temperature of he heat pipe elements is in the 770 to 810/sup 0/K range with a design power throughput of 4.8 kW per pipe. The total heat pipe length is 1.9 M. The Rankine cycle boiler heat transfer surfaces are positioned within the heat pipe vapor space, providing a relatively constant temperature input to the vaporizer. The heat pipe design employs axial arteries and distribution wicked thermal storage units with potassium as the working fluid. Stainless steel is used as the containment tube and screen material. Performance predictions for this configuration have been conducted and the design characterized as a function of artery geometry, distribution wick thickness, porosity, pore size, and permeability. Details of the analysis and of fabrication and assembly procedures are presented. 2 refs., 8 figs.

Keddy, E.S.; Sena, J.T.; Woloshun, K.; Merrigan, M.A.; Heidenreich, G.

1986-01-01T23:59:59.000Z

99

Solar Thermal Incentive Program | Department of Energy  

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

Solar Thermal Incentive Program Solar Thermal Incentive Program Solar Thermal Incentive Program < Back Eligibility Residential Savings Category Heating & Cooling Solar Water Heating Maximum Rebate 50% of the project cost Program Info Funding Source Public Benefits Fund State Connecticut Program Type State Rebate Program Rebate Amount Calculated: $70 multiplied by the SRCC "C" rating multiplied by the number of collectors multiplied by the Shading Factor Provider Clean Energy Finance and Investment Authority Note: This program is not currently accepting applications. Check the program web site for information regarding future financing programs. To participate in the residential solar hot water rebate, homeowners must first complete an energy assessment. Then, they must work with CEFIA

100

The Added Economic and Environmental Value of Solar Thermal Systems in Microgrids with Combined Heat and Power  

E-Print Network (OSTI)

MW) solar thermal for absorption cooling (MW) adopoted heatdisplaced due to absorption building cooling (GWh/a) annualthat cooling is necessary all day long and the absorption

Marnay, Chris

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heat solar thermal" 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

Solar Water Heating  

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

publication provides basic informa- publication provides basic informa- tion on the components and types of solar water heaters currently available and the economic and environmental benefits of owning a system. Although the publica- tion does not provide information on building and installing your own system, it should help you discuss solar water heating systems intelligently with a solar equipment dealer. Solar water heaters, sometimes called

102

List of Passive Solar Space Heat Incentives | Open Energy Information  

Open Energy Info (EERE)

Space Heat Incentives Space Heat Incentives Jump to: navigation, search The following contains the list of 278 Passive Solar Space Heat Incentives. CSV (rows 1 - 278) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active Alternative Energy and Energy Conservation Patent Exemption (Corporate) (Massachusetts) Industry Recruitment/Support Massachusetts Commercial Biomass Fuel Cells Geothermal Electric Ground Source Heat Pumps Hydroelectric energy Municipal Solid Waste Passive Solar Space Heat Photovoltaics Solar Space Heat Solar Thermal Electric Solar Thermal Process Heat Solar Water Heat Wind energy Yes Alternative Energy and Energy Conservation Patent Exemption (Personal) (Massachusetts) Industry Recruitment/Support Massachusetts General Public/Consumer Biomass

103

Solar-thermal technology  

DOE Green Energy (OSTI)

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

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

1995-09-01T23:59:59.000Z

104

Solar Thermal Technology Status, Performance, and Cost Estimates -- 2011  

Science Conference Proceedings (OSTI)

Solar thermal power plants use mirrors to focus solar radiation onto a solar receiver, which heats a heat transfer fluid that drives either a turbine or heat engine to generate electricity. This study provides cost and performance information for three commercial or early commercial solar thermal electric technologies: parabolic trough (with and without thermal storage), molten salt power tower with thermal energy storage, and parabolic dish engine. Capital, operations, and maintenance cost estimates are...

2012-03-15T23:59:59.000Z

105

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

106

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

107

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

108

Solar heat regulator  

Science Conference Proceedings (OSTI)

A solar heat regulating device is described for selectively heating with sunlight the air inside a building having a window and shielding and insulating the air inside the building from the heat of sunlight outside the building including: a frame for mounting the solar heat regulating device inside the building and adjacent to the window; a plurality of hollow vanes, each of the vanes having at least one passageway for passing air therethrough; the vanes having a heat absorptive surface on a first side thereof which allows solar radiation impinging on the heat absorptive surface to heat the air contained in the one passageway of the vanes; the vanes having a heat reflective surface on a second side of the vanes which reflects the solar radiation impinging on the second side of the vanes and shields the inside of the building from solar radiation impinging on the vanes; and the vanes having side portions extending between the first and second sides of the vanes, the side portions, and the first and second sides forming the one passageway through each of the vanes, the side portions and the first and second sides of the vanes terminating in top end and bottom end portions.

Boynton, S.L.

1987-04-07T23:59:59.000Z

109

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

110

Solar energy thermalization and storage device  

DOE Patents (OSTI)

A passive solar thermalization and thermal energy storage assembly which is visually transparent. The assembly consists of two substantial parallel, transparent wall members mounted in a rectangular support frame to form a liquid-tight chamber. A semitransparent thermalization plate is located in the chamber, substantially paralled to and about equidistant from the transparent wall members to thermalize solar radiation which is stored in a transparent thermal energy storage liquid which fills the chamber. A number of the devices, as modules, can be stacked together to construct a visually transparent, thermal storage wall for passive solar-heated buildings.

McClelland, John F. (Ames, IA)

1981-09-01T23:59:59.000Z

111

Solar Thermal Manufacturing Activities  

Reports and Publications (EIA)

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

Michele Simmons

2010-12-01T23:59:59.000Z

112

Transparent solar heat collector  

SciTech Connect

Infrared solar radiation is absorbed by a transparent converter glass for conversion of the infrared radiation into thermal energy. Liquid or air forms a transparent fluid medium that is conducted into heat transfer contact with the glass to carry the thermal energy away from the glass to a point of utilization. In one embodiment, the transparent converter glass consists of sintered particles of infrared absorptive glass located within a collector space formed within an all-glass panel. The panel includes glass walls extending outwardly of the walls forming the collector space. In a further embodiment, the transparent converter glass consists of elongated strips of infrared absorptive glass carried by support members so that the strips extend in a parallel, spaced-apart relation to form a venetian blind-like structure between glass panels. In a still further embodiment, the transparent converter glass consists of a slab of infrared absorptive glass extending vertically within a building structure to form a passageway for the flow of convectivelydriven air between the glass slab and two window panels forming a dry airspace therebetween. Instead of a thick unitary glass slab, smaller bricks of infrared absorptive glass are arranged to form courses of an internal wall within a building structure adjacent a glass window.

Deminet, C.

1980-08-12T23:59:59.000Z

113

Active Solar Heating | Department of Energy  

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

Active Solar Heating Linear Concentrator Systems for Concentrating Solar Power Image of a heat exchanger. | Photo from iStockphoto.com Heat Exchangers for Solar Water Heating...

114

A NEW SOLAR THERMAL RECEIVER UTILIZING A SMALL PARTICLE HEAT EXCHANGER  

E-Print Network (OSTI)

A.J.Hunt, "Small Particle Heat Exchangers" Lawrence BerkeleyUtilizing A Small Particle Heat Exchanger ArIon]. Hunt AprilA SMALL PARTICLE HEAT EXCHANGER Arlon J. Hunt Lawrence

Hunt, Arlon J.

2011-01-01T23:59:59.000Z

115

List of Solar Thermal Electric Incentives | Open Energy Information  

Open Energy Info (EERE)

Electric Incentives Electric Incentives Jump to: navigation, search The following contains the list of 548 Solar Thermal Electric Incentives. CSV (rows 1-500) CSV (rows 501-548) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active 30% Business Tax Credit for Solar (Vermont) Corporate Tax Credit Vermont Commercial Industrial Photovoltaics Solar Space Heat Solar Thermal Electric Solar Thermal Process Heat Solar Water Heat No APS - Net Metering (Arizona) Net Metering Arizona Commercial Industrial Residential Nonprofit Schools Local Government State Government Fed. Government Agricultural Institutional Solar Thermal Electric Photovoltaics Wind energy Biomass No Advanced Energy Fund (Ohio) Public Benefits Fund Ohio Commercial Industrial Institutional

116

Energy Basics: Solar Liquid Heating  

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

EERE: Energy Basics Solar Liquid Heating Solar liquid heating systems use a collector with a heat transfer or "working" fluid such as water, antifreeze (usually non-toxic propylene...

117

Solar home heating in Michigan  

Science Conference Proceedings (OSTI)

This booklet presents the fundamentals of solar heating for both new and existing homes. A variety of systems for space heating and household water heating are explained, and examples are shown of solar homes and installations in Michigan.

Not Available

1984-01-01T23:59:59.000Z

118

FEMP-Solar Water Heating  

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

Fact sheet details solar water heating and how to use the sun to heat domestic water in any climate. Document explains how solar water heating helps to save energy, reduce utility costs, and preserve the environment.

119

Sustainable Energy Science and Engineering Center Solar Thermal Conversion  

E-Print Network (OSTI)

Sustainable Energy Science and Engineering Center Solar Thermal Conversion Major Functions: · Solar #12;Sustainable Energy Science and Engineering Center Solar Thermal Conversion Solar energy a surface is heated by a certain flux of incident solar energy is determined by the balance of incident

Krothapalli, Anjaneyulu

120

Analysis of the economic potential of solar thermal energy to provide industrial process heat. Final report, Volume I. [In-depth analysis of 78 industries  

SciTech Connect

The process heat data base assembled as the result of this survey includes specific process applications from 78 four-digit Standard Industrial Classification (SIC) groups. These applications account for the consumption of 9.81 quadrillion Btu in 1974, about 59 percent of the 16.6 quadrillion Btu estimated to have been used for all process heat in 1974. About 7/sup 1///sub 2/ percent of industrial process heat is used below 212/sup 0/F (100/sup 0/C), and 28 percent below 550/sup 0/F (288/sup 0/C). In this study, the quantitative assessment of the potential of solar thermal energy systems to provide industrial process heat indicates that solar energy has a maximum potential to provide 0.6 quadrillion Btu per year in 1985, and 7.3 quadrillion Btu per year in 2000, in economic competition with the projected costs of conventional fossil fuels for applications having a maximum required temperature of 550/sup 0/ (288/sup 0/C). A wide variety of collector types were compared for performance and cost characteristics. Performance calculations were carried out for a baseline solar system providing hot water in representative cities in six geographical regions within the U.S. Specific industries that should have significant potential for solar process heat for a variety of reasons include food, textiles, chemicals, and primary metals. Lumber and wood products, and paper and allied products also appear to have significant potential. However, good potential applications for solar process heat can be found across the board throughout industry. Finally, an assessment of nontechnical issues that may influence the use of solar process heat in industry showed that the most important issues are the establishment of solar rights, standardization and certification for solar components and systems, and resolution of certain labor-related issues. (Volume 1 of 3 volumes.)

1977-02-07T23:59:59.000Z

Note: This page contains sample records for the topic "heat solar thermal" 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

Solar pool heating | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Solar pool heating Jump to: navigation, search Pool Heating is a great use for solar energy. Solar pool heating systems can be very effective and inexpensive. The pool itself is the thermal storage unit and the existing pump that the pool uses will circulate the water through the solar collectors. Pool Covers Having a good pool cover is one of the best ways to conserve energy and use solar energy to heat the pool. If you don't have a pool cover the solar energy being used will be wasted and you will be using three times as much energy that is necessary. Solar Sun Rings- instead of using a full pool cover sun rings are

122

Solar thermal power  

DOE Green Energy (OSTI)

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

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

1997-12-31T23:59:59.000Z

123

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

124

Simulation and design of solar thermal processes  

DOE Green Energy (OSTI)

Methods of simulation and design of solar thermal processes have been developed and used in process system studies. During the period of this contract, new process component model formulations have been developed, including: transient LiBr--H/sub 2/O absorption cooler; CPC and other ''advanced'' collectors; and windows, storage wall and shading devices for passive solar heating. Systems studies have included: parallel and series solar/heat pump combinations; phase change storage in solar heating; absorption cooling with and without cooler transients. The general solar process simulation program, TRNSYS, has been further developed, documented, distributed and supported. Design procedure studies have led to development of a method for calculating the phi, the average solar radiation availability, and the development of the phi, f-chart method for design of closed-loop solar heating systems which (a) can have load temperatures other than 20/sup 0/C, and (b) have approximately constant COP of any energy converters between storage and load.

Not Available

1978-12-01T23:59:59.000Z

125

INTERACTION OF A SOLAR SPACE HEATING SYSTEM WITH THE THERMAL BEHAVIOR OF A BUILDING  

E-Print Network (OSTI)

and Duffie [17], the fan give 185 % of the design heat loadfan coil heating system sized at 130 % of design load tofan coil output power of 32 kW (110 kBtu/hr), or about three times the design

Vilmer, Christian

2013-01-01T23:59:59.000Z

126

Solar thermal financing guidebook  

DOE Green Energy (OSTI)

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

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

1983-05-01T23:59:59.000Z

127

The development of a solar thermal water purification, heating, and power generation system: A case study.  

E-Print Network (OSTI)

parabolic solar troughs. A flow control valve adjustable for temperature and pressure, allowed the pressure within the troughs to build, thus increasing the boiling point of the water. At a temperature greater that was positioned at the focal point of sunlight within an 8 foot, 9 inch parabolic dish. The flash evaporation

Wu, Mingshen

128

City of Dubuque - Solar Thermal Licensing Requirement | Department of  

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

City of Dubuque - Solar Thermal Licensing Requirement City of Dubuque - Solar Thermal Licensing Requirement City of Dubuque - Solar Thermal Licensing Requirement < Back Eligibility Construction Installer/Contractor Savings Category Heating & Cooling Solar Water Heating Program Info State Iowa Program Type Solar/Wind Contractor Licensing Provider City of Dubuque The City of Dubuque requires a Solar Thermal License in order for a person to install a solar thermal project on a home or business. The requirement does not apply to solar photovoltaics. The licensing requirement can be met one of two ways. An installer may be Solar Thermal Certified by the North American Board of Certified Energy Practitioners (NABCEP) or An installer may complete the Northeast Iowa Community College Solar Thermal Training Installers are also required to obtain a permit before altering or

129

Glass heat pipe evacuated tube solar collector  

DOE Patents (OSTI)

A glass heat pipe is adapted for use as a solar energy absorber in an evacuated tube solar collector and for transferring the absorbed solar energy to a working fluid medium or heat sink for storage or practical use. A capillary wick is formed of granular glass particles fused together by heat on the inside surface of the heat pipe with a water glass binder solution to enhance capillary drive distribution of the thermal transfer fluid in the heat pipe throughout the entire inside surface of the evaporator portion of the heat pipe. Selective coatings are used on the heat pipe surface to maximize solar absorption and minimize energy radiation, and the glass wick can alternatively be fabricated with granular particles of black glass or obsidian.

McConnell, Robert D. (Lakewood, CO); Vansant, James H. (Tracy, CA)

1984-01-01T23:59:59.000Z

130

Energy Basics: Solar Air Heating  

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

Homes & Buildings Printable Version Share this resource Lighting & Daylighting Passive Solar Design Space Heating & Cooling Cooling Systems Heating Systems Furnaces & Boilers Wood...

131

Energy Basics: Solar Liquid Heating  

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

Homes & Buildings Printable Version Share this resource Lighting & Daylighting Passive Solar Design Space Heating & Cooling Cooling Systems Heating Systems Furnaces & Boilers Wood...

132

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

133

Evaluating Incentives for Solar Heating ...  

Science Conference Proceedings (OSTI)

Page 1. t ~ Ii '.:)' NBSIR 76-1127(IE') Evaluating Incentives for Solar Heating Rosalie T. Ruegg Building Economics Section ...

2008-03-05T23:59:59.000Z

134

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

E-Print Network (OSTI)

Energy Agency Solar Heating and Cooling Programme. [43] WHOembody a stand-alone solar heating system. It is assumedrecent growth in solar-thermal heating (Weiss et al. [42]),

Norwood, Zachary Mills

2011-01-01T23:59:59.000Z

135

List of Solar Pool Heating Incentives | Open Energy Information  

Open Energy Info (EERE)

Heating Incentives Heating Incentives Jump to: navigation, search The following contains the list of 118 Solar Pool Heating Incentives. CSV (rows 1 - 118) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active APS - Renewable Energy Incentive Program (Arizona) Utility Rebate Program Arizona Commercial Residential Anaerobic Digestion Biomass Daylighting Geothermal Electric Ground Source Heat Pumps Landfill Gas Other Distributed Generation Technologies Photovoltaics Small Hydroelectric Solar Pool Heating Solar Space Heat Solar Thermal Process Heat Solar Water Heat Wind energy Yes Alternative Energy Personal Property Tax Exemption (Michigan) Property Tax Incentive Michigan Commercial Industrial Biomass CHP/Cogeneration Fuel Cells Microturbines Photovoltaics

136

Heat Transfer Fluids for Solar Water Heating Systems | Department of Energy  

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

Heat Transfer Fluids for Solar Water Heating Systems Heat Transfer Fluids for Solar Water Heating Systems Heat Transfer Fluids for Solar Water Heating Systems May 16, 2013 - 3:02pm Addthis Illustration of a solar water heater. Illustration of a solar water heater. Heat-transfer fluids carry heat through solar collectors and a heat exchanger to the heat storage tanks in solar water heating systems. When selecting a heat-transfer fluid, you and your solar heating contractor should consider the following criteria: Coefficient of expansion - the fractional change in length (or sometimes in volume, when specified) of a material for a unit change in temperature Viscosity - resistance of a liquid to sheer forces (and hence to flow) Thermal capacity - the ability of matter to store heat Freezing point - the temperature below which a liquid turns into a

137

Solar heating system  

DOE Patents (OSTI)

An improved solar heating system in which the incident radiation of the sun is absorbed on collector panels, transferred to a storage unit and then distributed as heat for a building and the like. The improvement is obtained by utilizing a storage unit comprising separate compartments containing an array of materials having different melting points ranging from 75.degree. to 180.degree. F. The materials in the storage system are melted in accordance with the amount of heat absorbed from the sun and then transferred to the storage system. An efficient low volume storage system is provided by utilizing the latent heat of fusion of the materials as they change states in storing and releasing heat for distribution.

Schreyer, James M. (Oak Ridge, TN); Dorsey, George F. (Concord, TN)

1982-01-01T23:59:59.000Z

138

Improved solar heating systems  

DOE Patents (OSTI)

An improved solar heating system is described in which the incident radiation of the sun is absorbed on collector panels, transferred to a storage unit and then distributed as heat for a building and the like. The improvement is obtained by utilizing a storage unit comprising separate compartments containing an array of materials having different melting points ranging from 75 to 180/sup 0/F. The materials in the storage system are melted in accordance with the amount of heat absorbed from the sun and then transferred to the storage system. An efficient low volume storage system is provided by utilizing the latent heat of fusion of the materials as they change states in storing ad releasing heat for distribution.

Schreyer, J.M.; Dorsey, G.F.

1980-05-16T23:59:59.000Z

139

Solar heated building structure  

Science Conference Proceedings (OSTI)

A solar heated building structure comprises an exterior shell including side walls and a roof section with the major portion of the roof section comprised of light transmitting panels or panes of material to permit passage of sunlight into the attic section of the building structure. The structure is provided with a central vertical hollow support column containing liquid storage tanks for the circulation and collection of heated water from a flexible conduit system located on the floor of the attic compartment. The central column serves as a heating core for the structure and communicates by way of air conduits or ducts with the living areas of the structure. Fan means are provided for continuously or intermittently circulating air over the hot water storage tanks in the core to transfer heat therefrom and distribute the heated air into the living areas.

Rugenstein, R.W.

1980-03-11T23:59:59.000Z

140

Thermal Management of Solar Cells  

E-Print Network (OSTI)

Nanostructured Silicon- Based Solar Cells, 2013. X. C. Tong,compact heat exchangers, and solar cells," Sci-Tech News,2011. C. J. Chen, Physics of Solar Energy: Wiley, 2011. M.

Saadah, Mohammed Ahmed

2013-01-01T23:59:59.000Z

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


141

Solar-Assisted Technology Provides Heat for California Industries  

E-Print Network (OSTI)

Solar-Assisted Technology Provides Heat for California Industries Industrial/Agriculture/Water End 2011 The Issue Solar thermal technology focuses the Sun's rays to heat water, and is a promising renewable resource for California's industrial sector. Commercially available solar water heating

142

Solar heating and cooling. Research and development: project summaries  

DOE Green Energy (OSTI)

The Conservation and Solar Applications Solar Heating and Cooling Research and Development Program is described. The evolution of the R and D program is described and the present program is outlined. A series of project descriptions summarizes the research and development presently supported for further development of collectors, thermal energy storage and heat exchangers, heat pumps, solar cooling, controls, and systems. (MHR)

Not Available

1978-05-01T23:59:59.000Z

143

Solar heated rotary kiln  

SciTech Connect

A solar heated rotary kiln utilized for decomposition of materials, such as zinc sulfate. The rotary kiln has an open end and is enclosed in a sealed container having a window positioned for directing solar energy into the open end of the kiln. The material to be decomposed is directed through the container into the kiln by a feed tube. The container is also provided with an outlet for exhaust gases and an outlet for spent solids, and rests on a tiltable base. The window may be cooled and kept clear of debris by coolant gases.

Shell, Pamela K. (Tracy, CA)

1984-01-01T23:59:59.000Z

144

DOE Solar Process Heat Program: FY1991 Solar Process Heat Prefeasibility Studies Activity  

E-Print Network (OSTI)

During fiscal year (FY) 1991, the U.S. Department of Energy (DOE) Solar Process Heat Program implemented a Solar Process Heat Prefeasibility Studies activity. For Program purposes, a prefeasibility study is an engineering assessment that investigates the technical and economic feasibility of a solar system for a specific application for a specific end-user. The study includes an assessment of institutional issues (e.g., financing, availability of insurance, etc.) that impact the feasibility of the proposed solar project. Solar process heat technology covers solar thermal energy systems (utilizing fiat plate or concentrating solar collectors) for water heating, water preheating, cooling/refrigeration, steam generation, ventilation air heating/preheating, etc. for applications in industry, commerce, and government.

Russell Hewett; Price Microfiche A

1992-01-01T23:59:59.000Z

145

SunShot Initiative: Scattering Solar Thermal Concentrators  

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

Scattering Solar Thermal Scattering Solar Thermal Concentrators to someone by E-mail Share SunShot Initiative: Scattering Solar Thermal Concentrators on Facebook Tweet about SunShot Initiative: Scattering Solar Thermal Concentrators on Twitter Bookmark SunShot Initiative: Scattering Solar Thermal Concentrators on Google Bookmark SunShot Initiative: Scattering Solar Thermal Concentrators on Delicious Rank SunShot Initiative: Scattering Solar Thermal Concentrators on Digg Find More places to share SunShot Initiative: Scattering Solar Thermal Concentrators on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage CSP Recovery Act Baseload CSP SunShot Multidisciplinary University Research Initiative CSP Heat Integration for Baseload Renewable Energy Deployment

146

SunShot Initiative: Low-Cost Solar Thermal Collector  

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

Low-Cost Solar Thermal Collector Low-Cost Solar Thermal Collector to someone by E-mail Share SunShot Initiative: Low-Cost Solar Thermal Collector on Facebook Tweet about SunShot Initiative: Low-Cost Solar Thermal Collector on Twitter Bookmark SunShot Initiative: Low-Cost Solar Thermal Collector on Google Bookmark SunShot Initiative: Low-Cost Solar Thermal Collector on Delicious Rank SunShot Initiative: Low-Cost Solar Thermal Collector on Digg Find More places to share SunShot Initiative: Low-Cost Solar Thermal Collector on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage CSP Recovery Act Baseload CSP SunShot Multidisciplinary University Research Initiative CSP Heat Integration for Baseload Renewable Energy Deployment National Laboratory Research & Development

147

New and Underutilized Technology: Solar Water Heating | Department of  

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

Solar Water Heating Solar Water Heating New and Underutilized Technology: Solar Water Heating October 7, 2013 - 9:02am Addthis The following information outlines key deployment considerations for solar water heating within the Federal sector. Benefits Solar water heating uses solar thermal collectors to heat water. Application Solar water heating is applicable in most building categories. Climate and Regional Considerations Solar water heating is best in regions with high insolation. Key Factors for Deployment The Energy Independence and Security Act (EISA) of 2007 requires 30% of hot water demand in new Federal buildings and major renovations to be met with solar water heating equipment providing it is life-cycle cost effective. Federal agencies must consider collector placement location to optimize

148

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

149

SOLTECH 92 proceedings: Solar Process Heat Program  

SciTech Connect

This document is a limited Proceedings, documenting the presentations given at the symposia conducted by the US Department of Energy's (DOE) Solar Industrial Program and Solar Thermal Electrical Program at SOLTECH92. The SOLTECH92 national solar energy conference was held in Albuquerque, New Mexico during the period February 17--20, 1992. The National Renewable Energy Laboratory manages the Solar Industrial Program; Sandia National Laboratories (Albuquerque) manages the Solar Thermal Electric Program. The symposia sessions were as follows: (1) Solar Industrial Program and Solar Thermal Electric Program Overviews, (2) Solar Process Heat Applications, (3) Solar Decontamination of Water and Soil; (4) Solar Building Technologies, (5) Solar Thermal Electric Systems, (6) PV Applications and Technologies. For each presentation given in these symposia, these Proceedings provide a one- to two-page abstract and copies of the viewgraphs and/or 35mm slides utilized by the speaker. Some speakers provided additional materials in the interest of completeness. The materials presented in this document were not subjected to a peer review process.

1992-03-01T23:59:59.000Z

150

SOLTECH 92 proceedings: Solar Process Heat Program  

DOE Green Energy (OSTI)

This document is a limited Proceedings, documenting the presentations given at the symposia conducted by the US Department of Energy's (DOE) Solar Industrial Program and Solar Thermal Electrical Program at SOLTECH92. The SOLTECH92 national solar energy conference was held in Albuquerque, New Mexico during the period February 17--20, 1992. The National Renewable Energy Laboratory manages the Solar Industrial Program; Sandia National Laboratories (Albuquerque) manages the Solar Thermal Electric Program. The symposia sessions were as follows: (1) Solar Industrial Program and Solar Thermal Electric Program Overviews, (2) Solar Process Heat Applications, (3) Solar Decontamination of Water and Soil; (4) Solar Building Technologies, (5) Solar Thermal Electric Systems, (6) PV Applications and Technologies. For each presentation given in these symposia, these Proceedings provide a one- to two-page abstract and copies of the viewgraphs and/or 35mm slides utilized by the speaker. Some speakers provided additional materials in the interest of completeness. The materials presented in this document were not subjected to a peer review process.

Not Available

1992-03-01T23:59:59.000Z

151

Solar Pool Heating | Open Energy Information  

Open Energy Info (EERE)

icon Solar Pool Heating Jump to: navigation, search TODO: Add description List of Solar Pool Heating Incentives Retrieved from "http:en.openei.orgwindex.php?titleSolar...

152

Solar Space Heat | Open Energy Information  

Open Energy Info (EERE)

icon Solar Space Heat Jump to: navigation, search TODO: Add description List of Solar Space Heat Incentives Retrieved from "http:en.openei.orgwindex.php?titleSolarS...

153

Solar Thermal Electric Technology: 2009  

Science Conference Proceedings (OSTI)

This report summarizes the status and progress of the solar thermal and concentrating solar power (CSP) industry in 2009. It addresses relevant policies in the United States and internationally, technology status, trends, companies and organizations involved in the field, and modeling activities supported by the Electric Power Research Institute (EPRI) and the Solar Thermal Electric Project (STEP).

2010-06-23T23:59:59.000Z

154

Solar Thermal Electric Technology: 2008  

Science Conference Proceedings (OSTI)

This report summarizes the status and progress of the solar thermal and concentrating solar power (CSP) industry in 2008. It addresses technology status, trends, companies and organizations involved in the field, and modeling activities supported by EPRI and the Solar Thermal Electric Project (STEP).

2009-03-31T23:59:59.000Z

155

Active Solar Heating | Department of Energy  

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

Active Solar Heating Active Solar Heating June 24, 2012 - 5:58pm Addthis This North Carolina home gets most of its space heating from the passive solar design, but the solar...

156

Window solar heating unit  

SciTech Connect

The unit may be mounted either in a window or between the studs of a building that is to be supplied with solar heat. The bottom of the unit extends farther from the building than the top and is wider than the top of the unit such that the transparent side away from the building has an arcuate form and is gradually flared outwardly in a downward direction to increase the exposure to the sun during the day. A plurality of absorptive tubes within the unit are slanted from the upper portion of the unit downwardly and outwardly to the front arcuate portion of the bottom. Openings between the unit and the building are provided for air flow, and a thermostatically controlled fan is mounted in one of the openings. A baffle is mounted between the absorptive tubes and the mounting side of the solar heating unit, and the surfaces of the baffle and the absorptive tubes are painted a dull black for absorbing heat transmitted from the sun through the transparent, slanting side.

Davis, E.J.

1978-09-12T23:59:59.000Z

157

Solar ponds for industrial process heat  

DOE Green Energy (OSTI)

Solar ponds offer perhaps the simplest technique for conversion of solar energy to thermal energy, which can be used for industrial process heat. It is unique in its capability in acting both as collector and storage. Further, the cost of solar pond per unit area is less than any active collectors available today. Combination of these economic and technical factors make solar ponds attractive as a fuel saver in IPH applications. Detailed calculations are given for solar ponds in two specific applications: providing hot water for aluminum can washing in a manufacturing plant and hot water for washing in a large commercial laundry. With the help of computer codes developed at SERI for other solar IPH systems, it is shown that solar ponds are far more cost effective than any other solar IPH technology for these applications.

Brown, K.C.; Edesess, M.; Jayadev, T.S.

1979-10-01T23:59:59.000Z

158

CONTROL SYSTEM FOR SOLAR HEATING and COOLING  

E-Print Network (OSTI)

for the solar-heated hot water. This heater can be seen inwater (solar heated, boosted, or heated entirely in the auxiliary heater)

Dols, C.

2010-01-01T23:59:59.000Z

159

CALIFORNIA SOLAR INITIATIVE-THERMAL PROGRAMHANDBOOK  

E-Print Network (OSTI)

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

160

Enhancement of specific heat capacity of high-temperature silica-nanofluids synthesized in alkali chloride salt eutectics for solar thermal-energy  

E-Print Network (OSTI)

chloride salt eutectics for solar thermal-energy storage applications Donghyun Shin, Debjyoti Banerjee solution, resulting in degradation of the thermal properties. Solar energy conversion to electricity is achieved primarily by using (a) photovoltaic technology, or (b) by harnessing solar thermal-energy

Banerjee, Debjyoti

Note: This page contains sample records for the topic "heat solar thermal" 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

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

162

Analysis of community solar systems for combined space and domestic hot water heating using annual cycle thermal energy storage  

DOE Green Energy (OSTI)

A simplified design procedure is examined for estimating the storage capacity and collector area for annual-cycle-storage, community solar heating systems in which 100% of the annual space heating energy demand is provided from the solar source for the typical meteorological year. Hourly computer simulations of the performance of these systems were carried out for 10 cities in the United States for 3 different building types and 4 community sizes. These permitted the use of design values for evaluation of a more simplified system sizing method. Results of this study show a strong correlation between annual collector efficiency and two major, location-specific, annual weather parameters: the mean air temperature during daylignt hours and the total global insolation on the collector surface. Storage capacity correlates well with the net winter load, which is a measure of the seasonal variation in the total load, a correlation which appears to be independent of collector type.

Hooper, F.C.; McClenahan, J.D.; Cook, J.D.; Baylin, F.; Monte, R.; Sillman, S.

1980-01-01T23:59:59.000Z

163

The solar thermal report. Volume 3, Number 5  

SciTech Connect

This report is published by the Jet Propulsion Laboratory for the DOE Solar Thermal Technology Division to provide an account of work sponsored by the Division and to aid the community of people interested in solar thermal technology in gaining access to technical information. Contents include articles entitled the following: Solar system supplies thermal energy for producing chemicals at USS plant; Solar thermal power module designed for small community market; Roof-mounted trough system supplies process heat for Caterpillar plant; Solar thermal update -- 10 MW(e) pilot plant and 3-MW(t) total energy system; Solar steam processes crude oil; New York investigates solar ponds as a source of thermal energy; On-farm solar -- Finding new uses for the sun; and Topical index of solar thermal report articles.

1982-09-01T23:59:59.000Z

164

Solar thermal repowering  

SciTech Connect

Solar central receiver technology is developing steadily with a promise of becoming a real commercial alternative for energy generation in the late 1980s. Significant potential markets have been identified, research and development of important components is proceeding well, and the first full-system verification experiment at Barstow, California, is under construction. However, much work still lies ahead. A big step toward the realization of large-scale commercial use of solar energy was taken when the Department of Energy (DOE) issued a solicitation in March 1979 for utility repowering/industrial retrofit system conceptual design studies employing solar central receivers. Twenty-two responses were evaluated, and twelve were selected for funding. The results of the twelve studies, plus one study completed earlier and one privately funded, are sufficiently encouraging to warrant proceeding to the next stage of the program: cost-shared projects chosen through open competition. Eight of he fourteen studies are for electric utility repowering of existing oil or natural gas generating plants. The other six are the first site-specific studies of the use of solar central receiver systems for industrial process heat. The industrial processes include gypsum board drying, oil refining, enhanced oil recovery, uranium ore processing, natural gas processing, and ammonia production. Site descriptions, project summaries, conceptual designs, and functional descriptions are given for each of these 14 studies.

1980-08-01T23:59:59.000Z

165

Solar heating apparatus  

SciTech Connect

The disclosure concerns a collector for solar heating apparatus which is adapted for vertical mounting and utilizes air as the heat exchange medium. The collector comprises a glazed insulated box containing a group of energy transfer units, each of which is formed by a pair of similar open top metal foil pans having flat bottom walls which are in abutment and outwardly flaring conical side walls. The pans carry a black energy-absorbing coating and preferably their abutting walls contain registering air flow openings. The energy transfer units are stacked in interfitting relationship in rows and columns, with the axes of adjacent interfitted units in each row and in each column extending in mutually perpendicular directions. The collector may be combined with a fan unit adapted to fit a standard window, thereby providing a portable, economical, auxiliary heater for a room of a building.

Decker, C.R.

1981-06-09T23:59:59.000Z

166

Tips: Passive Solar Heating and Cooling | Department of Energy  

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

Passive Solar Heating and Cooling Passive Solar Heating and Cooling Tips: Passive Solar Heating and Cooling April 24, 2012 - 4:18pm Addthis Tips: Passive Solar Heating and Cooling Using passive solar design to heat and cool your home can be both environmentally friendly and cost effective. In many cases, your heating costs can be reduced to less than half the cost of heating a typical home. Passive solar design can also help lower your cooling costs. Passive solar cooling techniques include carefully designed overhangs and using reflective coatings on windows, exterior walls, and roofs. Newer techniques include placing large, insulated windows on south-facing walls and putting thermal mass, such as a concrete slab floor or a heat-absorbing wall, close to the windows. A passive solar house requires careful design and siting, which vary by

167

Tips: Passive Solar Heating and Cooling | Department of Energy  

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

Tips: Passive Solar Heating and Cooling Tips: Passive Solar Heating and Cooling Tips: Passive Solar Heating and Cooling April 24, 2012 - 4:18pm Addthis Tips: Passive Solar Heating and Cooling Using passive solar design to heat and cool your home can be both environmentally friendly and cost effective. In many cases, your heating costs can be reduced to less than half the cost of heating a typical home. Passive solar design can also help lower your cooling costs. Passive solar cooling techniques include carefully designed overhangs and using reflective coatings on windows, exterior walls, and roofs. Newer techniques include placing large, insulated windows on south-facing walls and putting thermal mass, such as a concrete slab floor or a heat-absorbing wall, close to the windows. A passive solar house requires careful design and siting, which vary by

168

Thermally activated heat pumps  

SciTech Connect

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

NONE

1995-05-01T23:59:59.000Z

169

NREL: Learning - Solar Process Heat  

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

Process Heat Process Heat Photo of part of one side of a warehouse wall, where a perforated metal exterior skin is spaced about a foot out from the main building wall to form part of the transpired solar collector system. A transpired collector is installed at a FedEx facility in Denver, Colorado. Commercial and industrial buildings may use the same solar technologies-photovoltaics, passive heating, daylighting, and water heating-that are used for residential buildings. These nonresidential buildings can also use solar energy technologies that would be impractical for a home. These technologies include ventilation air preheating, solar process heating, and solar cooling. Space Heating Many large buildings need ventilated air to maintain indoor air quality. In cold climates, heating this air can use large amounts of energy. But a

170

Solar thermal power systems. Summary report  

DOE Green Energy (OSTI)

The work accomplished by the Aerospace Corporation from April 1973 through November 1979 in the mission analysis of solar thermal power systems is summarized. Sponsorship of this effort was initiated by the National Science Foundation, continued by the Energy Research and Development Administration, and most recently directed by the United States Department of Energy, Division of Solar Thermal Systems. Major findings and conclusions are sumarized for large power systems, small power systems, solar total energy systems, and solar irrigation systems, as well as special studies in the areas of energy storage, industrial process heat, and solar fuels and chemicals. The various data bases and computer programs utilized in these studies are described, and tables are provided listing financial and solar cost assumptions for each study. An extensive bibliography is included to facilitate review of specific study results and methodology.

Not Available

1980-06-01T23:59:59.000Z

171

Introduction to solar heating and cooling design and sizing  

DOE Green Energy (OSTI)

This manual is designed to introduce the practical aspects of solar heating/cooling systems to HVAC contractors, architects, engineers, and other interested individuals. It is intended to enable readers to assess potential solar heating/cooling applications in specific geographical areas, and includes tools necessary to do a preliminary design of the system and to analyze its economic benefits. The following are included: the case for solar energy; solar radiation and weather; passive solar design; system characteristics and selection; component performance criteria; determining solar system thermal performance and economic feasibility; requirements, availability, and applications of solar heating systems; and sources of additional information. (MHR)

Not Available

1978-08-01T23:59:59.000Z

172

Energy Basics: Active Solar Heating  

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

systems based on the type of fluid-either liquid or air-that is heated in the solar energy collectors. The collector is the device in which a fluid is heated by the sun....

173

Annual DOE active solar heating and cooling contractors' review meeting. Premeeting proceedings and project summaries  

DOE Green Energy (OSTI)

Ninety-three project summaries are presented which discuss the following aspects of active solar heating and cooling: Rankine solar cooling systems; absorption solar cooling systems; desiccant solar cooling systems; solar heat pump systems; solar hot water systems; special projects (such as the National Solar Data Network, hybrid solar thermal/photovoltaic applications, and heat transfer and water migration in soils); administrative/management support; and solar collector, storage, controls, analysis, and materials technology. (LEW)

None,

1981-09-01T23:59:59.000Z

174

Rankline-Brayton engine powered solar thermal aircraft  

Science Conference Proceedings (OSTI)

A solar thermal powered aircraft powered by heat energy from the sun. A Rankine-Brayton hybrid cycle heat engine is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller or other mechanism for enabling sustained free flight. The Rankine-Brayton engine has a thermal battery, preferably containing a lithium-hydride and lithium mixture, operably connected to it so that heat is supplied from the thermal battery to a working fluid. A solar concentrator, such as reflective parabolic trough, is movably connected to an optically transparent section of the aircraft body for receiving and concentrating solar energy from within the aircraft. Concentrated solar energy is collected by a heat collection and transport conduit, and heat transported to the thermal battery. A solar tracker includes a heliostat for determining optimal alignment with the sun, and a drive motor actuating the solar concentrator into optimal alignment with the sun based on a determination by the heliostat.

Bennett, Charles L. (Livermore, CA)

2012-03-13T23:59:59.000Z

175

Rankine-Brayton engine powered solar thermal aircraft  

SciTech Connect

A solar thermal powered aircraft powered by heat energy from the sun. A Rankine-Brayton hybrid cycle heat engine is carried by the aircraft body for producing power for a propulsion mechanism, such as a propeller or other mechanism for enabling sustained free flight. The Rankine-Brayton engine has a thermal battery, preferably containing a lithium-hydride and lithium mixture, operably connected to it so that heat is supplied from the thermal battery to a working fluid. A solar concentrator, such as reflective parabolic trough, is movably connected to an optically transparent section of the aircraft body for receiving and concentrating solar energy from within the aircraft. Concentrated solar energy is collected by a heat collection and transport conduit, and heat transported to the thermal battery. A solar tracker includes a heliostat for determining optimal alignment with the sun, and a drive motor actuating the solar concentrator into optimal alignment with the sun based on a determination by the heliostat.

Bennett, Charles L. (Livermore, CA)

2009-12-29T23:59:59.000Z

176

Solar Thermal Incentive Program | Department of Energy  

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

Thermal Incentive Program Thermal Incentive Program Solar Thermal Incentive Program < Back Eligibility Agricultural Commercial Fed. Government Industrial Institutional Local Government Multi-Family Residential Nonprofit Residential Schools State Government Savings Category Heating & Cooling Solar Water Heating Maximum Rebate Residential: $4,000 per site/meter Non-residential: $25,000 per site/meter Incentive also capped at 80% of calculated existing thermal load Program Info Funding Source RPS surcharge Start Date 12/10/2010 Expiration Date 12/31/2015 State New York Program Type State Rebate Program Rebate Amount $1.50 per kWh displaced annually, for displacement of up to 80% of calculated existing thermal load Provider New York State Energy Research and Development Authority The New York State Energy Research and Development Authority (NYSERDA)

177

Hybrid photovoltaic/thermal solar energy system  

DOE Green Energy (OSTI)

Heating and cooling systems that use hybrid solar energy collectors (combination photovoltaic-thermal) have the potential for considerable energy savings, particularly when the system includes a heat pump. Economic evaluations show that photovoltaic systems are potentially most economical, but results depend critically on future collector costs as well as energy prices. Results are based on a specially developed computer program that predicted the total auxiliary energy required for five different solar heating/cooling systems. Performance calculations for a modeled residence and small office building were made using meteorological data from four geographic locations. Annual system costs were also calculated.

Kern, E.C. Jr.; Russell, M.C.

1978-03-27T23:59:59.000Z

178

Solar photovoltaic/thermal residential systems  

DOE Green Energy (OSTI)

The results of a conceptual design study using computer simulations to determine the physical and economic performance of combined photovoltaic/thermal collector heat-pump solar systems for a single-family residence are presented. Economic analyses are based upon projected costs for a 1986 system installation. The results show that PV/T collector systems can be economically competitive for a cold climate residence, that systems employing on-site electrical storage batteries are not economically competitive with utility-interactive systems, and that an ambient-air-source heat-pump system has a lower life-cycle cost than a solar-source heat-pump system.

Russell, M.C.

1979-12-28T23:59:59.000Z

179

Sustainable Energy Science and Engineering Center Solar Thermal Conversion  

E-Print Network (OSTI)

Sustainable Energy Science and Engineering Center Solar Thermal Conversion Major Functions: · Solar Center Collection The temperature to which a surface is heated by a certain flux of incident solar energy - 1914 Between 1880 and 1910, there were 48 articles on solar energy as a world energy source

Krothapalli, Anjaneyulu

180

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 .

Note: This page contains sample records for the topic "heat solar thermal" 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

Passive solar heating and analysis  

Science Conference Proceedings (OSTI)

Passive solar heating experience and analysis techniques are reviewed with emphasis on annual auxiliary heat requirement. The role of analysis in the design of passive solar buildings is discussed. Selected results for existing systems are presented for locations in Saudi Arabia and climatically similar locations in the US. Advanced systems in the research stage are described.

Jones, R.W.

1984-01-01T23:59:59.000Z

182

Corrosion and scaling in solar heating systems  

SciTech Connect

Corrosion, as experienced in solar heating systems, is described in simplistic terms to familiarize designers and installers with potential problems and their solutions. The role of a heat transfer fluid in a solar system is briefly discussed, and the choice of an aqueous solution is justified. The complexities of the multiple chemical and physical reactions are discussed in order that uncertainties of corrosion behavior can be anticipated. Some basic theories of corrosion are described, aggressive environments for some common metals are identified, and the role of corrosion inhibitors is delineated. The similarities of thermal and material charactristics of a solar system and an automotive cooling system are discussed. Based on the many years of experience with corrosion in automotive systems, it is recommended that similar antifreezes and corrosion inhibitors should be used in solar systems. The importance of good solar system design and fabrication is stressed and specific characteristics that affect corrosion are identified.

Foresti, R.J. Jr.

1981-12-01T23:59:59.000Z

183

CONTROL SYSTEM FOR SOLAR HEATING and COOLING  

E-Print Network (OSTI)

l U CONTROL SYSTEM FOR SOLAR HEATING AND COOLING* M.Wahlig,be capable of operating solar heating and cooling systemsand now transferred to ERDA, on solar heating and cooling of

Dols, C.

2010-01-01T23:59:59.000Z

184

FEMP--Solar Water Heating  

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

More than 1 million homeowners and 200,000 busi- More than 1 million homeowners and 200,000 busi- nesses in the United States are using the sun to heat domestic water efficiently in almost any climate. In summer, a solar system properly sized for a resi- dential building can meet 100% of the building's water-heating needs in most parts of the country. In winter, the system might meet only half of this need, so another source of heat is used to back up the solar system. In either case, solar water heating helps to save energy, reduce utility costs, and preserve the environment. A solar water-heating system's performance depends primarily on the outdoor temperature, the temperature to which the water is heated, and the amount of sunlight striking the collector-the device that actually captures the sun's energy.

185

Heat Transfer Fluids for Solar Water Heating Systems | Department...  

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

exchanger. | Photo from iStockphoto.com Heat Exchangers for Solar Water Heating Systems Rooftop solar water heaters need regular maintenance to operate at peak efficiency. |...

186

High heat flux engineering in solar energy applications  

DOE Green Energy (OSTI)

Solar thermal energy systems can produce heat fluxes in excess of 10,000 kW/m{sup 2}. This paper provides an introduction to the solar concentrators that produce high heat flux, the receivers that convert the flux into usable thermal energy, and the instrumentation systems used to measure flux in the solar environment. References are incorporated to direct the reader to detailed technical information.

Cameron, C.P.

1993-07-01T23:59:59.000Z

187

Waverly Light and Power - Residential Solar Thermal Rebates | Department of  

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

Solar Thermal Rebates Solar Thermal Rebates Waverly Light and Power - Residential Solar Thermal Rebates < Back Eligibility Residential Savings Category Heating & Cooling Solar Water Heating Maximum Rebate $3,500 Program Info Start Date 07/01/2009 State Iowa Program Type Utility Rebate Program Rebate Amount 30/sq. foot of collector area Provider Waverly Light and Power Waverly Light and Power (WL&P) offers rebates for solar hot water heating systems to its residential customers. All purchases must be pre-approved through WL&P's solar water heater application process. In addition, residential customers must obtain a county-issued permit prior to installing a solar water heating system. There is a limit of one rebate per address. Funding is available until the rebate fund is exhausted.

188

DOE Solar Process Heat Program: FY1991 Solar Process Heat Prefeasibility Studies activity  

DOE Green Energy (OSTI)

During fiscal year (FY) 1991, the US Department of Energy (DOE) Solar Process Heat Program implemented a Solar Process Heat Prefeasibility Studies activity. For Program purposes, a prefeasibility study is an engineering assessment that investigates the technical and economic feasibility of a solar system for a specific application for a specific end-user. The study includes an assessment of institutional issues (e.g., financing, availability of insurance, etc.) that impact the feasibility of the proposed solar project. Solar process heat technology covers solar thermal energy systems (utilizing flat plate or concentrating solar Collectors) for water heating, water preheating, cooling/refrigeration, steam generation, ventilation air heating/preheating, etc. for applications in industry, commerce, and government. The studies are selected for funding through a competitive solicitation. For FY 1991, six projects were selected for funding. As of August 31, 1992, three teams had completed their studies. This paper describes the prefeasibility studies activity, presents the results from the study performed by United Solar Technologies, and summarizes the conclusions from the studies that have been completed to date and their implications for the Solar Process Heat Program.

Hewett, R.

1992-11-01T23:59:59.000Z

189

Solar Thermal Electric | Open Energy Information  

Open Energy Info (EERE)

Electric Jump to: navigation, search TODO: Add description List of Solar Thermal Electric Incentives Retrieved from "http:en.openei.orgwindex.php?titleSolarThermalElectric&o...

190

Active Solar Heating Basics | Department of Energy  

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

NREL Active Solar Heating Linear Concentrator System Basics for Concentrating Solar Power Rooftop solar water heaters need regular maintenance to operate at peak efficiency. |...

191

Passive Solar Space Heat | Open Energy Information  

Open Energy Info (EERE)

Solar Space Heat Jump to: navigation, search TODO: Add description List of Passive Solar Space Heat Incentives Retrieved from "http:en.openei.orgwindex.php?titlePassive...

192

Utility solar water heating workshops  

DOE Green Energy (OSTI)

The objective of this project was to explore the problems and opportunities for utility participation with solar water heating as a DSM measure. Expected benefits from the workshops included an increased awareness and interest by utilities in solar water heating as well as greater understanding by federal research and policy officials of utility perspectives for purposes of planning and programming. Ultimately, the project could result in better information transfer, increased implementation of solar water heating programs, greater penetration of solar systems, and more effective research projects. The objective of the workshops was satisfied. Each workshop succeeded in exploring the problems and opportunities for utility participation with solar water heating as a DSM option. The participants provided a range of ideas and suggestions regarding useful next steps for utilities and NREL. According to evaluations, the participants believed the workshops were very valuable, and they returned to their utilities with new information, ideas, and commitment.

Barrett, L.B. (Barrett Consulting Associates, Inc., Colorado Springs, CO (United States))

1992-01-01T23:59:59.000Z

193

Coronal Heating versus Solar Wind Acceleration  

E-Print Network (OSTI)

Parker's initial insights from 1958 provided a key causal link between the heating of the solar corona and the acceleration of the solar wind. However, we still do not know what fraction of the solar wind's mass, momentum, and energy flux is driven by Parker-type gas pressure gradients, and what fraction is driven by, e.g., wave-particle interactions or turbulence. SOHO has been pivotal in bringing these ideas back to the forefront of coronal and solar wind research. This paper reviews our current understanding of coronal heating in the context of the acceleration of the fast and slow solar wind. For the fast solar wind, a recent model of Alfven wave generation, propagation, and non-WKB reflection is presented and compared with UVCS, SUMER, radio, and in-situ observations at the last solar minimum. The derived fractions of energy and momentum addition from thermal and nonthermal processes are found to be consistent with various sets of observational data. For the more chaotic slow solar wind, the relative roles of steady streamer-edge flows (as emphasized by UVCS abundance analysis) versus bright blob structures (seen by LASCO) need to be understood before the relation between streamer heating and and slow-wind acceleration can be known with certainty. Finally, this presentation summarizes the need for next-generation remote-sensing observations that can supply the tight constraints needed to unambiguously characterize the dominant physics.

Steven R. Cranmer

2004-09-29T23:59:59.000Z

194

Two-tank indirect thermal storage designs for solar parabolic trough power plants.  

E-Print Network (OSTI)

??The performance of a solar thermal parabolic trough plant with thermal storage is dependent upon the arrangement of the heat exchangers that ultimately transfer energy… (more)

Kopp, Joseph E.

2009-01-01T23:59:59.000Z

195

Simulation and design of solar thermal processes  

SciTech Connect

Methods of simulation and design of solar thermal processes have been developed and used in process system studies. During the period of this contract, new process component model formulations have been developed, including: transient LiBr--H/sub 2/O absorption cooler; CPC and other ''advanced'' collectors; and windows, storage wall and shading devices for passive solar heating. Systems studies have included: parallel and series solar/heat pump combinations; phase change storage in solar heating; absorption cooling with and without cooler transients. The general solar process simulation program, TRNSYS, has been further developed, documented, distributed and supported. Design procedure studies have led to development of a method for calculating the phi, the average solar radiation availability, and the development of the phi, f-chart method for design of closed-loop solar heating systems which (a) can have load temperatures other than 20/sup 0/C, and (b) have approximately constant COP of any energy converters between storage and load.

1978-12-01T23:59:59.000Z

196

National Solar Thermal Test Facility  

SciTech Connect

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

Cameron, C.P.

1989-12-31T23:59:59.000Z

197

Selected papers on solar radiation and solar thermal systems  

SciTech Connect

This volume contains a collection of reprints that represent the milestone papers in the fields of optical science and engineering. After a section containing historical papers in solar thermal research, the following sections are included: solar radiation; solar thermal power; solar thermal materials; and solar ponds. A total of 57 papers were indexed separately for the data base.

Osborn, D.E. (ed.) (Sacramento Municipal Utility District, CA (United States))

1993-01-01T23:59:59.000Z

198

Solar heat pipe feedback turbogenerator  

SciTech Connect

The conversion of radiant heat to electricity by a heat pipe-turbogenerator combination is described. The heat pipe-tubogenerator assembly is suitably externally insulated, as by a vacuum shield, to prevent heat losses and heat is recovered from the condenser portion of the heat pipe and returned to the evaporator portions. An application of the generic invention is discussed which it is employed on wall or roof portions of a building and serves as at least a partial supporting structure for these. In another application the solar heat pipe feedback turbogenerator may be incorporated in or used with reflective means, such as reflective sheet material of large area positioned to direct solar radiation onto the evaporator section of the heat pipe. The reflective means may be changed in position to follow the sun to produce maximum power during operation.

Decker, B.J.

1978-10-24T23:59:59.000Z

199

The Added Economic and Environmental Value of Solar Thermal Systems in Microgrids with Combined Heat and Power  

E-Print Network (OSTI)

Conference on Solar Air-Conditioning September 30 – OctoberConference on Solar Air-Conditioning September 30 – OctoberConference on Solar Air-Conditioning September 30 – October

Marnay, Chris

2010-01-01T23:59:59.000Z

200

Conversion system overview assessment. Volume III. Solar thermal/coal or biomass derived fuels  

SciTech Connect

The three volumes of this report cover three distinct areas of solar energy research: solar thermoelectrics, solar-wind hybrid systems, and synthetic fuels derived with solar thermal energy. Volume III deals with the conversion of synthetic fuels with solar thermal heat. The method is a hybrid combination of solar energy with either coal or biomass. A preliminary assessment of this technology is made by calculating the cost of fuel produced as a function of the cost of coal and biomass. It is shown that within the projected ranges of coal, biomass, and solar thermal costs, there are conditions when solar synthetic fuels with solar thermal heat will become cost-competitive.

Copeland, R. J.

1980-02-01T23:59:59.000Z

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


201

Solar air heating system for combined DHW and space heating  

E-Print Network (OSTI)

Solar air heating system for combined DHW and space heating solar air collector PV-panel fannon-return valve DHW tank mantle cold waterhot water roof Solar Energy Centre Denmark Danish Technological Institute SEC-R-29 #12;Solar air heating system for combined DHW and space heating Søren �stergaard Jensen

202

solar thermal | OpenEI  

Open Energy Info (EERE)

thermal thermal Dataset Summary Description This dataset presents summary information related to world solar energy. It is part of a supporting dataset for the book World On the Edge: How to Prevent Environmental and Economic Collapse by Lester R. Source Earth Policy Institute Date Released January 12th, 2011 (3 years ago) Date Updated Unknown Keywords EU solar solar PV solar thermal world Data application/vnd.ms-excel icon Excel spreadsheet, summary solar energy data on multiple tabs (xls, 145.9 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Open Data Commons Attribution License Comment "Reuse of our data is permitted. We merely ask that wherever it is listed, it be appropriately cited"

203

Summary Report for Concentrating Solar Power Thermal Storage Workshop: New Concepts and Materials for Thermal Energy Storage and Heat-Transfer Fluids, May 20, 2011  

Science Conference Proceedings (OSTI)

This document summarizes a workshop on thermal energy storage for concentrating solar power (CSP) that was held in Golden, Colorado, on May 20, 2011. The event was hosted by the U.S. Department of Energy (DOE), the National Renewable Energy Laboratory, and Sandia National Laboratories. The objective was to engage the university and laboratory research communities to identify and define research directions for developing new high-temperature materials and systems that advance thermal energy storage for CSP technologies. This workshop was motivated, in part, by the DOE SunShot Initiative, which sets a very aggressive cost goal for CSP technologies -- a levelized cost of energy of 6 cents per kilowatt-hour by 2020 with no incentives or credits.

Glatzmaier, G.

2011-08-01T23:59:59.000Z

204

Solar heating/cooling and domestic hot-water systems  

Science Conference Proceedings (OSTI)

Increasing awareness of global warming forces policy makers and industries to face two challenges: reducing greenhouse gas emissions and securing stable energy supply against ever-increasing world energy consumption, which is projected to increase by ... Keywords: buildings heating, domestic hot-water, energetical analysis, renewable energy sources, solar cooling technologies, solar energy collection, solar thermal systems

Ioan Sârbu; Marius Adam

2011-02-01T23:59:59.000Z

205

PREDICTING THE TIME RESPONSE OF A BUILDING UNDER HEAT INPUT CONDITIONS FOR ACTIVE SOLAR HEATING SYSTEMS  

E-Print Network (OSTI)

solar space heating system with heat input and building loadBUILDING UNDER HEAT INPUT CONDITIONS FOR ACTIVE SOLAR HEATINGBUILDING UNDER HEAT INPUT CONDITIONS FOR ACTIVE SOLAR HEATING

Warren, Mashuri L.

2013-01-01T23:59:59.000Z

206

Solar Thermal Energy Storage Device: Hybrid Nanostructures for High-Energy-Density Solar Thermal Fuels  

SciTech Connect

HEATS Project: MIT is developing a thermal energy storage device that captures energy from the sun; this energy can be stored and released at a later time when it is needed most. Within the device, the absorption of sunlight causes the solar thermal fuel’s photoactive molecules to change shape, which allows energy to be stored within their chemical bonds. A trigger is applied to release the stored energy as heat, where it can be converted into electricity or used directly as heat. The molecules would then revert to their original shape, and can be recharged using sunlight to begin the process anew. MIT’s technology would be 100% renewable, rechargeable like a battery, and emissions-free. Devices using these solar thermal fuels—called Hybrisol—can also be used without a grid infrastructure for applications such as de-icing, heating, cooking, and water purification.

None

2012-01-09T23:59:59.000Z

207

Piedmont EMC - Solar Water Heating Rebate Program | Department...  

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

Solar Water Heating Rebate Program Piedmont EMC - Solar Water Heating Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Solar Water Heating Program...

208

Tidal Heating of Extra-Solar Planets  

E-Print Network (OSTI)

Extra-solar planets close to their host stars have likely undergone significant tidal evolution since the time of their formation. Tides probably dominated their orbital evolution once the dust and gas had cleared away, and as the orbits evolved there was substantial tidal heating within the planets. The tidal heating history of each planet may have contributed significantly to the thermal budget that governed the planet's physical properties, including its radius, which in many cases may be measured by observing transit events. Typically, tidal heating increases as a planet moves inward toward its star and then decreases as its orbit circularizes. Here we compute the plausible heating histories for several planets with measured radii, using the same tidal parameters for the star and planet that had been shown to reconcile the eccentricity distribution of close-in planets with other extra-solar planets. Several planets are discussed, including for example HD 209458 b, which may have undergone substantial tida...

Jackson, Brian; Barnes, Rory

2008-01-01T23:59:59.000Z

209

Solar-thermal power technical and management support. Program summary report  

DOE Green Energy (OSTI)

Support activities described are: preparation of the significant development weekly reports; preparation of briefings for the Solar Thermal Power Systems Program; preparation of the Annual Thermal Power Systems Technical Progress Report; Integrated Solar Thermal/Industrial Process Heat Program Plan; review of the Storage Technology Development Program for Thermal Power Systems; and review of the Thermal Power Systems Multiyear Plan. A draft of the Goals and Requirements Section of the Integrated Solar Thermal/Industrial Process Heat Program Plan is included. (LEW)

Not Available

1979-03-09T23:59:59.000Z

210

Solar Water Heat | Open Energy Information  

Open Energy Info (EERE)

Water Heat Jump to: navigation, search TODO: Add description List of Solar Water Heat Incentives Retrieved from "http:en.openei.orgwindex.php?titleSolarWaterHeat&oldid26719...

211

Assessment of solar heating and cooling techology  

DOE Green Energy (OSTI)

In order to assess in detail the state of the technology for solar heating and cooling of buildings, five 2-day meetings were held. The meeting subjects were solar collectors, thermal storage, air conditioning and heat pumps, systems and controls, and non-engineering aspects of solar energy. This is a condensation of these meetings, presenting for each topic discussed the details of the state of the art, the problem areas, and the objectives of necessary research and development. The existing state of technology for solar heating and cooling presents a mixed picture. Liquid-heating flat-plate solar collectors, for example, are in a rather mature stage, and there is a small, viable industry producing components. Even here, however, there are problems of materials which, if solved, can reduce collector cost, improve performance, or increase lifetime. In other areas such as, for example, desiccant chillers, passive concepts, and many of the systems categories, the technology is at an early stage of evolution, and much research and development remain to be done.

Balcomb, J.D.; Perry, J.E. Jr.

1977-05-01T23:59:59.000Z

212

Made in Minnesota Solar Thermal Rebate | Department of Energy  

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

Made in Minnesota Solar Thermal Rebate Made in Minnesota Solar Thermal Rebate Made in Minnesota Solar Thermal Rebate < Back Eligibility Commercial Multi-Family Residential Residential Savings Category Heating & Cooling Solar Swimming Pool Heaters Water Heating Buying & Making Electricity Commercial Heating & Cooling Maximum Rebate Single-Family Residential: $2,500 Multi-Family Residential: $5,000 Commercial: $25,000 Program Info Start Date 1/1/2014 Expiration Date 12/31/2023 State Minnesota Program Type State Rebate Program Rebate Amount 25% Provider Minnesota Department of Commerce Beginning in 2014, the Department of Commerce will offer a Made in Minnesota Solar Thermal Rebate program. Rebates are 25% of installed costs, with a $2,500 maximum for residential systems, $5,000 maximum for multi-family residential systems, and $25,000 for commercial systems.

213

Advanced Heat Transfer and Thermal Storage Fluids  

DOE Green Energy (OSTI)

The design of the next generation solar parabolic trough systems for power production will require the development of new thermal energy storage options with improved economics or operational characteristics. Current heat-transfer fluids such as VP-1?, which consists of a eutectic mixture of biphenyl and diphenyl oxide, allow a maximum operating temperature of ca. 300 C, a limit above which the vapor pressure would become too high and would require pressure-rated tanks. The use of VP-1? also suffers from a freezing point around 13 C that requires heating during cold periods. One of the goals for future trough systems is the use of heat-transfer fluids that can act as thermal storage media and that allow operating temperatures around 425 C combined with lower limits around 0 C. This paper presents an outline of our latest approach toward the development of such thermal storage fluids.

Moens, L.; Blake, D.

2005-01-01T23:59:59.000Z

214

What solar heating costs  

SciTech Connect

Few people know why solar energy systems cost what they do. Designers and installers know what whole packages cost, but rarely how much goes to piping, how much for labor and how much for the collectors. Yet one stands a better chance of controlling costs if one can compare where the money is going against where it should be going. A detailed Tennessee Valley Authority study of large solar projects shows how much each component contributes to the total bill.

Adams, J.A.

1985-05-01T23:59:59.000Z

215

Passive vapor transport solar heating systems  

DOE Green Energy (OSTI)

In the systems under consideration, refrigerant is evaporated in a solar collector and condensed in thermal storage for space or water heating located within the building at a level below that of the collector. Condensed liquid is lifted to an accumulator above the collector by the vapor pressure generated in the collector. Tests of two systems are described, and it is concluded that one of these systems offers distinct advantages.

Hedstrom, J.C.; Neeper, D.A.

1985-01-01T23:59:59.000Z

216

Rules of thumb for passive solar heating  

DOE Green Energy (OSTI)

Rules of thumb are given for passive solar systems for: (1) sizing solar glazing for 219 cities, (2) sizing thermal storage mass, and (3) building orientation.

Balcomb, J.D.

1980-01-01T23:59:59.000Z

217

Active Solar Heating Basics | Department of Energy  

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

Active Solar Heating Basics Active Solar Heating Basics Active Solar Heating Basics August 16, 2013 - 3:23pm Addthis There are two basic types of active solar heating systems based on the type of fluid-either liquid or air-that is heated in the solar energy collectors. The collector is the device in which a fluid is heated by the sun. Liquid-based systems heat water or an antifreeze solution in a "hydronic" collector, whereas air-based systems heat air in an "air collector." Both of these systems collect and absorb solar radiation, then transfer the solar heat directly to the interior space or to a storage system, from which the heat is distributed. If the system cannot provide adequate space heating, an auxiliary or back-up system provides the additional heat. Liquid systems are more often used when storage is included, and are well

218

Solar Thermal Technologies Available for Licensing - Energy ...  

Solar Thermal Technologies Available for Licensing U.S. Department of Energy (DOE) laboratories and participating research institutions have concentrating solar power ...

219

Solar heating shingle roof structure  

Science Conference Proceedings (OSTI)

A solar heating roof shingle roof structure which combines the functions of a roof and a fluid conducting solar heating panel. Each shingle is a hollow body of the general size and configuration of a conventional shingle, and is provided with a fluid inlet and a fluid outlet. Shingles are assembled in a normal overlapping array to cover a roof structure, with interconnections between the inlets and outlets of successive shingles to provide a fluid path through the complete array. An inlet manifold is contained in a cap used at the peak of the roof and an outlet manifold is connected to the lowest row of shingles.

Straza, G.T.

1984-01-31T23:59:59.000Z

220

Active space heating and hot water supply with solar energy  

DOE Green Energy (OSTI)

Technical and economic assessments are given of solar water heaters, both circulating, and of air-based and liquid-based solar space heating systems. Both new and retrofit systems are considered. The technical status of flat-plate and evacuated tube collectors and of thermal storage is also covered. Non-technical factors are also briefly discussed, including the participants in the use of solar heat, incentives and deterrents. Policy implications are considered as regards acceleration of solar use, goals for solar use, means for achieving goals, and interaction of governments, suppliers, and users. Government actions are recommended. (LEW)

Karaki, S.; Loef, G. O.G.

1981-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "heat solar thermal" 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

Boiler efficiency methodology for solar heat applications  

DOE Green Energy (OSTI)

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

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

1992-08-01T23:59:59.000Z

222

Solar Thermal Generation Technologies: 2006  

Science Conference Proceedings (OSTI)

After years of relative inactivity, the solar thermal electric (STE) industry is experiencing renewed activity and investment. The shift is partly due to new interest in large-scale centralized electricity generation, for which STE is well suited and offers the lowest cost for solar-specific renewable portfolio standards. With policymaking and public interest driven by concerns such as global climate change, atmospheric emissions, and traditional fossil fuel price and supply volatility, STE is increasing...

2007-03-30T23:59:59.000Z

223

Solar Thermal Technologies - Energy Innovation Portal  

Here you'll find marketing summaries of concentrating solar power and solar heating technologies available for licensing from U.S. Department ... Ener ...

224

DEVELOPMENT OF SOLAR DRIVEN ABSORPTION AIR CONDITIONERS AND HEAT PUMPS  

E-Print Network (OSTI)

the Annual DOE Active Solar Heating and Cooling Contractors'and Annual DOE Active Solar Heating and Cooling Contractors'refrigeration systems for solar active heating and cooling

Dao, K.

2013-01-01T23:59:59.000Z

225

Building Technologies Office: Utility Solar Water Heating Initiative  

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

Utility Solar Water Heating Initiative Search Search Help Utility Solar Water Heating Initiative EERE Building Technologies Office Utility Solar Water Heating Initiative...

226

Category:Solar Water Heating Incentives | Open Energy Information  

Open Energy Info (EERE)

Solar Water Heating Incentives Jump to: navigation, search Category for Solar Water Heating Incentives. Pages in category "Solar Water Heating Incentives" The following 200 pages...

227

Thermal Response Testing for Geothermal Heat Exchangers ...  

Science Conference Proceedings (OSTI)

Thermal Response Testing for Geothermal Heat Exchangers Begins. The Net-Zero house features a geothermal heat pump ...

2013-03-12T23:59:59.000Z

228

Thermal and non-thermal energies in solar flares  

E-Print Network (OSTI)

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

Pascal Saint-Hilaire; Arnold O. Benz

2005-03-03T23:59:59.000Z

229

Tidal Heating of Extra-Solar Planets  

E-Print Network (OSTI)

Extra-solar planets close to their host stars have likely undergone significant tidal evolution since the time of their formation. Tides probably dominated their orbital evolution once the dust and gas had cleared away, and as the orbits evolved there was substantial tidal heating within the planets. The tidal heating history of each planet may have contributed significantly to the thermal budget that governed the planet's physical properties, including its radius, which in many cases may be measured by observing transit events. Typically, tidal heating increases as a planet moves inward toward its star and then decreases as its orbit circularizes. Here we compute the plausible heating histories for several planets with measured radii, using the same tidal parameters for the star and planet that had been shown to reconcile the eccentricity distribution of close-in planets with other extra-solar planets. Several planets are discussed, including for example HD 209458 b, which may have undergone substantial tidal heating during the past billion years, perhaps enough to explain its large measured radius. Our models also show that GJ 876 d may have experienced tremendous heating and is probably not a solid, rocky planet. Theoretical models should include the role of tidal heating, which is large, but time-varying.

Brian Jackson; Richard Greenberg; Rory Barnes

2008-02-29T23:59:59.000Z

230

Solar-Thermal Fluid-Wall Reaction Processing  

DOE Patents (OSTI)

The present invention provides a method for carrying out high temperature thermal dissociation reactions requiring rapid-heating and short residence times using solar energy. In particular, the present invention provides a method for carrying out high temperature thermal reactions such as dissociation of hydrocarbon containing gases and hydrogen sulfide to produce hydrogen and dry reforming of hydrocarbon containing gases with carbon dioxide. In the methods of the invention where hydrocarbon containing gases are dissociated, fine carbon black particles are also produced. The present invention also provides solar-thermal reactors and solar-thermal reactor systems.

Weimer, A. W.; Dahl, J. K.; Lewandowski, A. A.; Bingham, C.; Raska Buechler, K. J.; Grothe, W.

2006-04-25T23:59:59.000Z

231

Solar space heating | Open Energy Information  

Open Energy Info (EERE)

heating heating Jump to: navigation, search (The following text is derived from the United States Department of Energy's description of solar space heating technology.)[1] Contents 1 Space Heating 2 Passive Solar Space Heating 3 Active Solar Space Heating 4 References Space Heating A solar space-heating system can consist of a passive system, an active system, or a combination of both. Passive systems are typically less costly and less complex than active systems. However, when retrofitting a building, active systems might be the only option for obtaining solar energy. Passive Solar Space Heating Passive solar space heating takes advantage of warmth from the sun through design features, such as large south-facing windows, and materials in the floors or walls that absorb warmth during the day and release that warmth

232

Glass-heat-pipe evacuated-tube solar collector  

DOE Patents (OSTI)

A glass heat pipe is adapted for use as a solar energy absorber in an evacuated tube solar collector and for transferring the absorbed solar energy to a working fluid medium or heat sink for storage or practical use. A capillary wick is formed of granular glass particles fused together by heat on the inside surface of the heat pipe with a water glass binder solution to enhance capillary drive distribution of the thermal transfer fluid in the heat pipe throughout the entire inside surface of the evaporator portion of the heat pipe. Selective coatings are used on the heat pipe surface to maximize solar absorption and minimize energy radiation, and the glass wick can alternatively be fabricated with granular particles of black glass or obsidian.

McConnell, R.D.; VanSant, J.H.

1981-08-06T23:59:59.000Z

233

Practical Solar Thermal Chilled Water  

E-Print Network (OSTI)

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

Leavell, B.

2010-01-01T23:59:59.000Z

234

Solar Thermal Reactor Materials Characterization  

DOE Green Energy (OSTI)

Current research into hydrogen production through high temperature metal oxide water splitting cycles has created a need for robust high temperature materials. Such cycles are further enhanced by the use of concentrated solar energy as a power source. However, samples subjected to concentrated solar radiation exhibited lifetimes much shorter than expected. Characterization of the power and flux distributions representative of the High Flux Solar Furnace(HFSF) at the National Renewable Energy Laboratory(NREL) were compared to ray trace modeling of the facility. In addition, samples of candidate reactor materials were thermally cycled at the HFSF and tensile failure testing was performed to quantify material degradation. Thermal cycling tests have been completed on super alloy Haynes 214 samples and results indicate that maximum temperature plays a significant role in reduction of strength. The number of cycles was too small to establish long term failure trends for this material due to the high ductility of the material.

Lichty, P. R.; Scott, A. M.; Perkins, C. M.; Bingham, C.; Weimer, A. W.

2008-03-01T23:59:59.000Z

235

The Added Economic and Environmental Value of Solar Thermal Systems in Microgrids with Combined Heat and Power  

E-Print Network (OSTI)

N. Zhou, (2007), “Distributed Generation with Heat Recoveryoutputs the optimal Distributed Generation (DG) and storageand sizing of distributed generation and electric storage

Marnay, Chris

2010-01-01T23:59:59.000Z

236

Installation package for a solar heating system  

DOE Green Energy (OSTI)

Installation information is presented for a solar heating system installed in Concho Indian School at El Reno, Oklahoma. This package includes a system Operation and Maintenance Manual, hardware brochures, schematics, system operating modes and drawings. The Solar Engineering and Equipment Company (SEECO) developed this prototype solar heating system consisting of the following subsystems: solar collectors, control and storage.

Not Available

1978-12-01T23:59:59.000Z

237

Solar Thermal Technologies Available for Licensing ...  

Solar Thermal Technologies Available for Licensing U.S. Department of Energy (DOE) laboratories and participating research institutions have ...

238

Solar Thermal Test Facility experiment manual  

DOE Green Energy (OSTI)

Information is provided on administrative procedures, capabilities, and requirements of experimenters using the Solar Thermal Test Facility. (MHR)

Darsey, D. M.; Holmes, J. T.; Seamons, L. O.; Kuehl, D. J.; Davis, D. B.; Stomp, J. M.; Matthews, L. K.; Otts, J. V.

1977-10-01T23:59:59.000Z

239

Secondary concentrators for parabolic dish solar thermal power systems  

SciTech Connect

One approach to production of electricity or high-temperature process heat from solar energy is to use point-focusing, two-axis pointing concentrators in a distributed-receiver solar thermal system. This paper discusses some of the possibilities and problems in using compound concentrators in parabolic dish systems. 18 refs.

Jaffe, L.D.; Poon, P.T.

1981-01-01T23:59:59.000Z

240

Concentrating Solar Power Thermal Storage System Basics | Department of  

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

Thermal Storage System Basics Thermal Storage System Basics Concentrating Solar Power Thermal Storage System Basics August 21, 2013 - 10:33am Addthis One challenge facing the widespread use of solar energy is reduced or curtailed energy production when the sun sets or is blocked by clouds. Thermal energy storage provides a workable solution to this challenge. In a concentrating solar power (CSP) system, the sun's rays are reflected onto a receiver, which creates heat that is used to generate electricity. If the receiver contains oil or molten salt as the heat-transfer medium, then the thermal energy can be stored for later use. This enables CSP systems to be cost-competitive options for providing clean, renewable energy. Several thermal energy storage technologies have been tested and

Note: This page contains sample records for the topic "heat solar thermal" 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

Solar-heated rotary kiln  

DOE Patents (OSTI)

A solar heated rotary kiln utilized for decomposition of materials, such as zinc sulfate is disclosed. The rotary kiln has an open end and is enclosed in a sealed container having a window positioned for directing solar energy into the open end of the kiln. The material to be decomposed is directed through the container into the kiln by a feed tube. The container is also provided with an outlet for exhaust gases and an outlet for spent solids, and rests on a tiltable base. The window may be cooled and kept clear of debris by coolant gases.

Shell, P.K.

1982-04-14T23:59:59.000Z

242

Definition: Passive solar heating | Open Energy Information  

Open Energy Info (EERE)

solar heating solar heating Jump to: navigation, search Dictionary.png Passive solar heating Using the sun's energy to heat a building; the windows, walls, and floors can be designed to collect, store, and distribute solar energy in the form of heat in the winter (and also to reject solar heat in the summer).[1] View on Wikipedia Wikipedia Definition Related Terms Daylighting, Passive Solar, heat, energy References ↑ http://www.energysavers.gov/your_home/designing_remodeling/index.cfm/mytopic=10250 Retrie LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ved from "http://en.openei.org/w/index.php?title=Definition:Passive_solar_heating&oldid=480581" Category: Definitions What links here Related changes Special pages Printable version Permanent link

243

The Added Economic and Environmental Value of Solar Thermal Systems in Microgrids with Combined Heat and Power  

E-Print Network (OSTI)

and/or cooling, and micro-CHP systems in the Californiaand/or cooling, and micro-CHP systems with and without heatmicro-generation systems, e.g. fuel cells with or without combined heat and power (CHP)

Marnay, Chris

2010-01-01T23:59:59.000Z

244

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

E-Print Network (OSTI)

STUDY FOR SOLAR THERMAL POWER PLANTS, Ottawa, Ontario: 1999.Concentrated Solar Thermal Power Plants A Thesis submittedConcentrated Solar Thermal Power Plants by Corey Lee Hardin

Hardin, Corey Lee

2011-01-01T23:59:59.000Z

245

Commercial Solar Thermal Incentive Program (Connecticut) | Department of  

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

Solar Thermal Incentive Program (Connecticut) Solar Thermal Incentive Program (Connecticut) Commercial Solar Thermal Incentive Program (Connecticut) < Back Eligibility Commercial Industrial Institutional Local Government Low-Income Residential Multi-Family Residential Nonprofit Schools Tribal Government Savings Category Heating & Cooling Solar Water Heating Maximum Rebate $150,000 Program Info Funding Source Public Benefits Fund Start Date 03/15/2013 State Connecticut Program Type State Grant Program Provider Clean Energy Finance and Investment Authority '''''Note: This program is not currently accepting applications. Check the program web site for information regarding future financing programs. ''''' The Clean Energy Finance and Investment Authority is offering grants and loans to non-residential entities for solar hot water installations. Only

246

Modelling and simulation of elements for solar heating and daylighting  

SciTech Connect

Through the development of highly efficient transparent insulation materials (TIM), new opportunities are appearing in the field of daylighting and passive solar space heating. The simulation program WANDSIM, developed at the Fraunhofer-Institut fuer Solare Energiesysteme (ISE), models the dynamic performance of three important elements for daylighting and passive solar space heating; window glazing; transparently insulated masonry; transparently insulated glass wall. Selected simulation results of each type are represented and compared under thermal and daylighting aspects. The advantages of the transparently insulated glass wall, a new combined passive space heating and daylighting system, in economy and comfort are verified.

Wilke, W.S.; Schmid, J. (Fraunhofer-Inst. fuer Solare Energiesysteme, Freiburg (West Germany))

1991-01-01T23:59:59.000Z

247

Heat Exchangers for Solar Water Heating Systems | Department...  

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

heat to water in a storage tank. Heat-transfer fluids, such as antifreeze, protect the solar collector from freezing in cold weather. Liquid-to-liquid heat exchangers have...

248

Solar water heating: FEMP fact sheet  

DOE Green Energy (OSTI)

Using the sun to heat domestic water makes sense in almost any climate. Solar water heaters typically provide 40 to 80{percent} of a building's annual water-heating needs. A solar water-heating system's performance depends primarily on the outdoor temperature, the temperature to which the water is heated, and the amount of sunlight striking the collector.

Clyne, R.

1999-09-30T23:59:59.000Z

249

Solar heating shingle roof structure  

Science Conference Proceedings (OSTI)

A solar heating roof shingle roof structure which combines the functions of a roof and a fluid conducting solar heating panel. Each shingle is a hollow body of the general size and configuration of a conventional shingle, and is provided with a fluid inlet socket at the upper end and a fluid outlet plug at the lower end with a skirt at the lower end overlapping the plug. Shingles are assembled in an overlapping array to cover a roof structure, with interconnections between the inlets and outlets of successive longitudinally positioned shingles to provide fluid paths through the complete array. An inlet manifold is positioned at the upper end of the array or in the alternative contained in a cap used at the peak of the roof and an outlet manifold is connected to the outlet of the lowest row of shingles.

Straza, G.T.

1981-01-13T23:59:59.000Z

250

Thermal test procedure for a paraboloid concentrator solar cooker  

SciTech Connect

Suitable thermal tests have been identified for performance evaluation of a concentrating solar cooker. These tests provide parameters that characterize the performance of the solar cooker, and are more or less independent of the climatic variables. The overall heat loss factor is obtained from the cooling curve and the optical efficiency factor is determined from the heating curve - both under full load conditions. The performance characteristic curve for the solar cooker is obtained and discussed. The study indicates that the no load test, which is useful in the case of a box type solar cooker, is not appropriate in the case of concentrator type cookers.

Mullick, S.C.; Kandpal, T.C.; Kumar, S. (Indian Institute of Technology, New Delhi (India))

1991-01-01T23:59:59.000Z

251

Solar heating and cooling diode module  

DOE Patents (OSTI)

A high efficiency solar heating system comprising a plurality of hollow modular units each for receiving a thermal storage mass, the units being arranged in stacked relation in the exterior frame of a building, each of the units including a port for filling the unit with the mass, a collector region and a storage region, each region having inner and outer walls, the outer wall of the collector region being oriented for exposure to sunlight for heating the thermal storage mass; the storage region having an opening therein and the collector region having a corresponding opening, the openings being joined for communicating the thermal storage mass between the storage and collector regions by thermosiphoning; the collector region being disposed substantially below and in parallel relation to the storage region in the modular unit; and the inner wall of the collector region of each successive modular unit in the stacked relation extending over the outer wall of the storage region of the next lower modular unit in the stacked relation for reducing heat loss from the system. Various modifications and alternatives are disclosed for both heating and cooling applications.

Maloney, Timothy J. (Winchester, VA)

1986-01-01T23:59:59.000Z

252

Solar space heating | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Solar space heating (Redirected from - Solar Ventilation Preheat) Jump to: navigation, search (The following text is derived from the United States Department of Energy's description of solar space heating technology.)[1] Contents 1 Space Heating 2 Passive Solar Space Heating 3 Active Solar Space Heating 4 References Space Heating A solar space-heating system can consist of a passive system, an active system, or a combination of both. Passive systems are typically less costly and less complex than active systems. However, when retrofitting a building, active systems might be the only option for obtaining solar

253

Quality assurance and standards plan for solar thermal technologies  

DOE Green Energy (OSTI)

The development of a Quality Assurance and Standards (QA and S) plan for the photovoltaic (PV) and domestic solar heating (SHAC) technologies preceded that for solar thermal technologies, permitting a review and lessons-learned approach to developing solar thermal QA and S plan. It is noted that the state of the art for solar thermal technology is not as complicated or novel as PV and is better suited to engineering dialogues for input and implementation than SHAC. It is important to recognize the differences in legislative directives that influence the US Department of Energy's approach to the process of developing a QA and S plan. Specific legislative directives to develop criteria for PV and SHAC are replaced for solar thermal with directives to develop standards using a commercial approach. Accordingly, a series of standards matrices are proposed as the keystone to the plan which will identify the functions of components, subsystems, and systems.

Cobb, H.R.W.

1981-07-01T23:59:59.000Z

254

SOLTECH 92 proceedings: Solar Process Heat Program. Volume 1  

DOE Green Energy (OSTI)

This document is a limited Proceedings, documenting the presentations given at the symposia conducted by the US Department of Energy`s (DOE) Solar Industrial Program and Solar Thermal Electrical Program at SOLTECH92. The SOLTECH92 national solar energy conference was held in Albuquerque, New Mexico during the period February 17--20, 1992. The National Renewable Energy Laboratory manages the Solar Industrial Program; Sandia National Laboratories (Albuquerque) manages the Solar Thermal Electric Program. The symposia sessions were as follows: (1) Solar Industrial Program and Solar Thermal Electric Program Overviews, (2) Solar Process Heat Applications, (3) Solar Decontamination of Water and Soil; (4) Solar Building Technologies, (5) Solar Thermal Electric Systems, (6) PV Applications and Technologies. For each presentation given in these symposia, these Proceedings provide a one- to two-page abstract and copies of the viewgraphs and/or 35mm slides utilized by the speaker. Some speakers provided additional materials in the interest of completeness. The materials presented in this document were not subjected to a peer review process.

Not Available

1992-03-01T23:59:59.000Z

255

Thermal characteristics of a classical solar telescope primary mirror  

E-Print Network (OSTI)

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

Banyal, Ravinder K

2011-01-01T23:59:59.000Z

256

California Solar Initiative - Low-Income Solar Water Heating...  

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

Public Utilities Commission (CPUC) voted in October 2011 to create the California Solar Initiative (CSI) Thermal Low-Income program for single and multifamily residential...

257

Active Solar Heating and Cooling Systems Exemption | Department...  

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

Active Solar Heating and Cooling Systems Exemption Active Solar Heating and Cooling Systems Exemption < Back Eligibility Commercial Industrial Residential Savings Category Heating...

258

Solar Coronal Heating and Limb Effect  

E-Print Network (OSTI)

The quiet solar coronal heating problem and the observed center-to-limb wavelength variations of the solar lines (limb effect) can be explained. In this paper the quantitative calculations for these two phenomena are presented.

Yi-Jia Zheng

2013-05-24T23:59:59.000Z

259

Active Solar Heating | Department of Energy  

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

air in an "air collector." Both of these systems collect and absorb solar radiation, then transfer the solar heat directly to the interior space or to a storage system, from which...

260

Solar Coronal Heating and Limb Effect  

E-Print Network (OSTI)

The quiet solar coronal heating problem and the observed center-to-limb wavelength variations of the solar lines (limb effect) can be explained. In this paper the quantitative calculations for these two phenomena are presented.

Zheng, Yi-Jia

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heat solar thermal" 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

Rechargeable Heat Battery's Secret Revealed: Solar Energy Capture in  

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

Rechargeable Heat Rechargeable Heat Battery Rechargeable Heat Battery's Secret Revealed Solar energy capture in chemical form makes it storable and transportable January 11, 2011 | Tags: Chemistry, Energy Technologies, Franklin Contact: John Hules, JAHules@lbl.gov, +1 510 486 6008 2011-01-11-Heat-Battery.jpg A molecule of fulvalene diruthenium, seen in diagram, changes its configuration when it absorbs heat, and later releases heat when it snaps back to its original shape. Image: Jeffrey Grossman Broadly speaking, there have been two approaches to capturing the sun's energy: photovoltaics, which turn the sunlight into electricity, or solar-thermal systems, which concentrate the sun's heat and use it to boil water to turn a turbine, or use the heat directly for hot water or home

262

Parabolic Trough Solar Thermal Electric Power Plants  

DOE Green Energy (OSTI)

Although many solar technologies have been demonstrated, parabolic trough solar thermal electric power plant technology represents one of the major renewable energy success stories of the last two decades.

Not Available

2003-06-01T23:59:59.000Z

263

5 Cool Things about Solar Heating | Department of Energy  

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

5 Cool Things about Solar Heating 5 Cool Things about Solar Heating March 26, 2013 - 3:08pm Addthis Solar heating systems can be a cost-effective way to heat your home. | Photo...

264

Ausra Inc Formerly Solar Heat and Power Pty Ltd SHP | Open Energy  

Open Energy Info (EERE)

Inc Formerly Solar Heat and Power Pty Ltd SHP Inc Formerly Solar Heat and Power Pty Ltd SHP Jump to: navigation, search Name Ausra Inc (Formerly Solar Heat and Power Pty Ltd (SHP)) Place Palo Alto, California Zip 94303 Sector Solar Product US-based solar thermal electrical generation (STEG) company owned by AREVA Group. References Ausra Inc (Formerly Solar Heat and Power Pty Ltd (SHP))[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Ausra Inc (Formerly Solar Heat and Power Pty Ltd (SHP)) is a company located in Palo Alto, California . References ↑ "Ausra Inc (Formerly Solar Heat and Power Pty Ltd (SHP))" Retrieved from "http://en.openei.org/w/index.php?title=Ausra_Inc_Formerly_Solar_Heat_and_Power_Pty_Ltd_SHP&oldid=342438

265

5 Cool Things about Solar Heating | Department of Energy  

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

5 Cool Things about Solar Heating 5 Cool Things about Solar Heating 5 Cool Things about Solar Heating March 26, 2013 - 3:08pm Addthis Solar heating systems can be a cost-effective way to heat your home. | Photo courtesy of Solar Design Associates, Inc. Solar heating systems can be a cost-effective way to heat your home. | Photo courtesy of Solar Design Associates, Inc. Erin Connealy Communications Specialist, Office of Energy Efficiency and Renewable Energy How can I participate? Read Energy Saver's article on solar heating systems to see whether see whether active solar heating is a good option for you. Most people are familiar with solar photovoltaic panels, but far fewer know about using solar as a source of heat in their homes. Active solar heating uses solar energy to heat fluid or air, which then transfers the solar heat

266

Tracking heat flux sensors for concentrating solar applications  

DOE Patents (OSTI)

Innovative tracking heat flux sensors located at or near the solar collector's focus for centering the concentrated image on a receiver assembly. With flux sensors mounted near a receiver's aperture, the flux gradient near the focus of a dish or trough collector can be used to precisely position the focused solar flux on the receiver. The heat flux sensors comprise two closely-coupled thermocouple junctions with opposing electrical polarity that are separated by a thermal resistor. This arrangement creates an electrical signal proportional to heat flux intensity, and largely independent of temperature. The sensors are thermally grounded to allow a temperature difference to develop across the thermal resistor, and are cooled by a heat sink to maintain an acceptable operating temperature.

Andraka, Charles E; Diver, Jr., Richard B

2013-06-11T23:59:59.000Z

267

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

E-Print Network (OSTI)

corresponding to (1) solar-thermal efficiency, (2) solar-aperture) Parameter Solar-thermal efficiency Solar-electric80% solar-thermal conversion efficiency. (b) Electricity is

Norwood, Zachary Mills

2011-01-01T23:59:59.000Z

268

Solar Heated Pools for Your Commercial Property  

SciTech Connect

A brochure describing the energy-saving and cost-saving benefits of using solar water heating in commercial swimming pools.

American Solar Energy Society

2001-06-19T23:59:59.000Z

269

Innovative heat exchangers for solar water heaters.  

E-Print Network (OSTI)

??The performance of two innovative collector-loop heat exchangers used in pumped circulation solar water heaters was investigated experimentally and numerically, and TRNSYS simulation models were… (more)

Soo Too, Yen Chean

2007-01-01T23:59:59.000Z

270

Solar | Department of Energy  

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

wind, and solar thermal water heating systems. Natural gas customers qualify for the solar thermal water heating reward. October 16, 2013 Alliant Energy Interstate Power and...

271

Solar | Department of Energy  

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

wind, and solar thermal water heating systems. Natural gas customers qualify for the solar thermal water heating reward. July 12, 2013 Alliant Energy Interstate Power and...

272

A solar concentrating photovoltaic/thermal collector.  

E-Print Network (OSTI)

??This thesis discusses aspects of a novel solar concentrating photovoltaic / thermal (PV/T) collector that has been designed to produce both electricity and hot water.… (more)

Coventry, Joseph S

2008-01-01T23:59:59.000Z

273

Solar Thermal Success Stories - Energy Innovation Portal  

Solar Thermal Success Stories These success stories highlight some of the effective licensing and partnership activity between laboratories and industry in the area ...

274

Solar | Department of Energy  

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

loans for renewable energy and energy efficiency projects. Eligible renewable energy technologies include solar thermal, solar space heat, solar process heat,...

275

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

E-Print Network (OSTI)

STORAGE FOR CONCENTRATING SOLAR POWER PLANTS,” Eurosun 2010,COST REDUCTION STUDY FOR SOLAR THERMAL POWER PLANTS, Ottawa,Storage in Concentrated Solar Thermal Power Plants A Thesis

Hardin, Corey Lee

2011-01-01T23:59:59.000Z

276

Integrated heat pipe-thermal storage system performance evaluation  

SciTech Connect

Performance verification tests of an integrated heat pipe-thermal energy storage system have been conducted. This system is being developed as a part of an Organic Rankine Cycle-Solar Dynamic Power System (ORC-SDPS) receiver for future space stations. The integrated system consists of potassium heat pipe elements that incorporate thermal energy storage (TES) canisters within the vapor space along with an organic fluid (toluene) heater tube used as the condenser region of the heat pipe. During the insolation period of the earth orbit, solar energy is delivered to the surface of the heat pipe elements of the ORC-SDPS receiver and is internally transferred by the potassium vapor for use and storage. Part of the thermal energy is delivered to the heater tube and the balance is stored in the TES units. During the eclipse period of the orbit, the stored energy in the TES units is transferred by the potassium vapor to the toluene heater tube. A developmental heat pipe element was fabricated that employs axial arteries and a distribution wick connecting the wicked TES units and the heater to the solar insolation surface of the heat pipe. Tests were conducted to verify the heat pipe operation and to evaluate the heat pipe/TES units/heater tube operation by interfacing the heater unit to a heat exchanger.

Keddy, E.; Sena, J.T.; Merrigan, M.

1987-01-01T23:59:59.000Z

277

Thermal Management of Solar Cells  

E-Print Network (OSTI)

sinks, thermoelectrics, heat pipes, compact heat exchangers,cooling include heat sinks, heat pipes, and microchannels. Awith water cooling [10]. Heat pipes are another method of

Saadah, Mohammed Ahmed

2013-01-01T23:59:59.000Z

278

Solar thermal power systems. Program summary  

DOE Green Energy (OSTI)

Each of DOE's solar Thermal Power Systems projects funded and/or in existence during FY 1978 is described and the status as of September 30, 1978 is reflected. These projects are divided as follows: small thermal power applications, large thermal power applications, and advanced thermal technology. Also included are: 1978 project summary tables, bibliography, and an alphabetical index of contractors. (MHR)

Not Available

1978-12-01T23:59:59.000Z

279

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

E-Print Network (OSTI)

PHASE CHANGE THERMAL ENERGY STORAGE FOR CONCENTRATING SOLARMaterials for Thermal Energy Storage in Concentrated SolarMaterials for Thermal Energy Storage in Concentrated Solar

Hardin, Corey Lee

2011-01-01T23:59:59.000Z

280

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

Note: This page contains sample records for the topic "heat solar thermal" 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

The Heating & Acceleration of the Solar Wind  

E-Print Network (OSTI)

The Heating & Acceleration of the Solar Wind Eliot Quataert (UC Berkeley) Collaborators: Steve & Slow Winds · The Puzzle of the High Frequency Cascade (or the lack thereof ....) · Possible Solutions #12;Background · Heating required to accelerate the solar wind · Early models invoked e- conduction

Wurtele, Jonathan

282

Definition: Solar Water Heating | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Solar Water Heating Jump to: navigation, search Dictionary.png Solar Water Heating A low-energy intensive system that uses solar rays to heat water. It is a viable option in developing countries[1] View on Wikipedia Wikipedia Definition Solar water heating (SWH) or solar hot water (SHW) systems comprise several innovations and many mature renewable energy technologies that have been well established for many years. SWH has been widely used in Australia, Austria, China, Cyprus, Greece, India, Israel, Japan and Turkey. In a "close-coupled" SWH system the storage tank is horizontally mounted immediately above the solar collectors on the roof. No pumping is required as the hot water naturally rises into the tank through thermosiphon flow.

283

Measuring solar heat reduction for draperies and fabric shades  

SciTech Connect

We are all familiar with the utility of draperies, curtains and shades to exclude unwanted solar gain, control glare, insulate windows and provide privacy. The manageability of these devices gives us a degree of control over our indoor environment. While fabric window coverings are widely used as interior shading devices, the analytical methods used to determine their effectiveness in reducing solar gains are relatively unsophisticated. Furthermore, with the recent emphasis on daylighting and visual and thermal comfort, the response to these shading devices to the varying direction of incident solar radiation has taken on a new importance. In this article, the authors review the historical development of analytical and experimental methods used to determine solar heat gain for draperies. The current state of these methods will be evaluated and issues related to their applicability to draperies and fabric shades are identified. Finally, recommendations to improve the accuracy and applicability of current solar heat gain methods are presented.

Grasso, M.M.; Hunn, B.D. (Univ. of Texas, Austin, TX (US))

1991-08-01T23:59:59.000Z

284

Pv-Thermal Solar Power Assembly  

DOE Patents (OSTI)

A flexible solar power assembly includes a flexible photovoltaic device attached to a flexible thermal solar collector. The solar power assembly can be rolled up for transport and then unrolled for installation on a surface, such as the roof or side wall of a building or other structure, by use of adhesive and/or other types of fasteners.

Ansley, Jeffrey H. (El Cerrito, CA); Botkin, Jonathan D. (El Cerrito, CA); Dinwoodie, Thomas L. (Piedmont, CA)

2001-10-02T23:59:59.000Z

285

PREDICTING THE TIME RESPONSE OF A BUILDING UNDER HEAT INPUT CONDITIONS FOR ACTIVE SOLAR HEATING SYSTEMS  

E-Print Network (OSTI)

INPUT CONDITIONS FOR ACTIVE SOLAR HEATING SYSTEMS Mashuri L.CONDITIONS FOR ACTIVE SOLAR HEATING SYSTEMS * • Mashuri L.consists of a hydronic solar space heating system with heat

Warren, Mashuri L.

2013-01-01T23:59:59.000Z

286

Solar energy for agricultural and industrial process heat  

SciTech Connect

A state-of-the-art review of solar process heat is given; near term prospects are discussed; and the federal solar industrial process heat program is reviewed. Existing solar industrial process heat projects are tabulated. (WHK)

1979-06-22T23:59:59.000Z

287

The DOE Solar Thermal Electric Program  

DOE Green Energy (OSTI)

The Department of Energy`s Solar Thermal Electric Program is managed by the Solar thermal and biomass Power division which is part of the Office of utility Technologies. The focus of the Program is to commercialize solar electric technologies. In this regard, three major projects are currently being pursued in trough, central receiver, and dish/Stirling electric power generation. This paper describes these three projects and the activities at the National laboratories that support them.

Mancini, T.R.

1994-06-01T23:59:59.000Z

288

Thermal Management of Solar Cells  

E-Print Network (OSTI)

of the valence band. Solar radiation enters the p-n junctiona fraction of absorbed solar radiation energy is turned intoenclosure, the radiation energy from the solar cell light

Saadah, Mohammed Ahmed

2013-01-01T23:59:59.000Z

289

Long-term goals for solar thermal technology  

DOE Green Energy (OSTI)

This document describes long-term performance and cost goals for three solar thermal technologies. Pacific Northwest Laboratory (PNL) developed these goals in support of the Draft Five Year Research and Development Plan for the National Solar Thermal Technology Program (DOE 1984b). These technology goals are intended to provide targets that, if met, will lead to the widespread use of solar thermal technologies in the marketplace. Goals were developed for three technologies and two applications: central receiver and dish technologies for utility-generated electricity applications, and central receiver, dish, and trough technologies for industrial process heat applications. These technologies and applications were chosen because they are the primary technologies and applications that have been researched by DOE in the past. System goals were developed through analysis of future price projections for energy sources competing with solar thermal in the middle-to-late 1990's time frame. The system goals selected were levelized energy costs of $0.05/kWh for electricity and $9/MBtu for industrial process heat (1984 $). Component goals established to meet system goals were developed based upon projections of solar thermal component performance and cost which could be achieved in the same time frame.

Williams, T.A.; Dirks, J.A.; Brown, D.R.

1985-05-01T23:59:59.000Z

290

Bazhou Deli Solar Energy Heating Co Ltd aka Deli Solar PRC | Open Energy  

Open Energy Info (EERE)

Bazhou Deli Solar Energy Heating Co Ltd aka Deli Solar PRC Bazhou Deli Solar Energy Heating Co Ltd aka Deli Solar PRC Jump to: navigation, search Name Bazhou Deli Solar Energy Heating Co Ltd (aka Deli Solar (PRC)) Place Beijing, Beijing Municipality, China Zip 65700 Sector Biomass, Solar Product Seller of solar thermal water heating systems, PV-powered lamps and small-scale biomass space heating devices. Coordinates 39.90601°, 116.387909° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.90601,"lon":116.387909,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

291

Residential Solar Thermal Power Plant  

Solar power is a renewable source of energy that involves no fossil fuel combustion, and releases no greenhouse gases. In the past, solar power has not been ...

292

Research on the Applicability of Solar Energy-Ground Source Heat Pump in Different Regions of China  

Science Conference Proceedings (OSTI)

The development potential of solar energy resource, cLimatic characteristics and soil temperature conditions are various in different areas of China, which brings some difficulties in the promotion and appLication of solar energy-ground source heat pump ... Keywords: Solar energy-ground source heat pump (GSHP), Solar radiation, Sharacteristics of soil thermal storage, Geographic features

Dongyi Zhou; Chu-ping Shi; Wen-hua Yuan

2011-08-01T23:59:59.000Z

293

Lumbee River EMC - Solar Water Heating Loan Program (North Carolina...  

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

Loan Program (North Carolina) Lumbee River EMC - Solar Water Heating Loan Program (North Carolina) < Back Eligibility Residential Savings Category Heating & Cooling Solar Water...

294

Fort Pierce Utilities Authority - Solar Water Heating Rebate...  

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

Fort Pierce Utilities Authority - Solar Water Heating Rebate (Florida) Fort Pierce Utilities Authority - Solar Water Heating Rebate (Florida) < Back Eligibility Residential Savings...

295

Lumbee River EMC - Solar Water Heating Rebate Program (North...  

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

Rebate Program (North Carolina) Lumbee River EMC - Solar Water Heating Rebate Program (North Carolina) < Back Eligibility Residential Savings Category Heating & Cooling Solar Water...

296

Austin Energy - Solar Water Heating Rebate | Department of Energy  

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

Power Marketing Administration Other Agencies You are here Home Savings Austin Energy - Solar Water Heating Rebate Austin Energy - Solar Water Heating Rebate Eligibility...

297

FirstEnergy (West Penn Power) - Residential Solar Water Heating...  

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

FirstEnergy (West Penn Power) - Residential Solar Water Heating Program (Pennsylvania) FirstEnergy (West Penn Power) - Residential Solar Water Heating Program (Pennsylvania)...

298

Maricopa Assn. of Governments - PV and Solar Domestic Water Heating...  

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

Assn. of Governments - PV and Solar Domestic Water Heating Permitting Standards Maricopa Assn. of Governments - PV and Solar Domestic Water Heating Permitting Standards Eligibility...

299

Expansion and Improvement of Solar Water Heating Technology in...  

Open Energy Info (EERE)

Expansion and Improvement of Solar Water Heating Technology in China Project Management Office Jump to: navigation, search Name Expansion and Improvement of Solar Water Heating...

300

Heat Exchanger Thermal Performance Margin Guidelines  

Science Conference Proceedings (OSTI)

This report provides utility engineers with guidance on how to identify the thermal performance margin that is available in a given heat exchanger by comparing the thermal performance requirement at design limiting conditions to the thermal performance capability of the heat exchanger under those same conditions.

2005-11-30T23:59:59.000Z

Note: This page contains sample records for the topic "heat solar thermal" 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

Thermal energy storage for solar applications: an overview  

DOE Green Energy (OSTI)

This report presents an overview of current technology and programs including some economic studies in low, intermediate, and high temperatre thermal energy storage for solar applications and an assessment of key problem areas. Previous studies of the economic role of storage for solar home heating and stand-alone electric plants are examined first and factors which affect the economics of storage are discussed. Next, the costs and storage capacities of representative sensible and latent heat storage materials are summarized. Various modes of operation are also presented for thermal storage by reversible chemical reactions, but this technology is at such an immature stage of development that its economic and technical potential are not clearly understood. Some new ideas in containers and heat exchangers are reviewed to illustrate possible innovative approaches to reducing storage costs. A more detailed examination is then made of reversible reaction storage, and gas-solid reactions are shown to have desirable attributes for solar energy storage. However, there are problems with heat transfer and heat exchanger for these systems that must be solved to make such systems more economically attractive. The DOE programs in thermal energy storage are reviewed in light of this review, and recommendations are made for future program directions which appear at this time to have the greatest potential impact on reducing technical and economic barriers to thermal storage utilization.

Wyman, C.

1979-03-01T23:59:59.000Z

302

Thermal Management of Solar Cells  

E-Print Network (OSTI)

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

Saadah, Mohammed Ahmed

2013-01-01T23:59:59.000Z

303

Use of solar energy to produce process heat for industry  

DOE Green Energy (OSTI)

The role of solar energy in supplying heat and hot water to residential and commercial buildings is familiar. On the other hand, the role that solar energy may play in displacing imported energy supplies in the industrial and utility sectors often goes unrecognized. The versatility of solar technology lends itself well to applications in industry; particularly to the supplemental supply of process heat of all kinds. The realization of that potential will depend, however, on the identification of the most suitable applications and locations for industrial solar energy and the continued improvement in cost, durability, and reliability of solar equipment. The status of solar thermal technology for industrial process heat applications is surveyed, including a description of current costs and operating histories. Because the current status is unsatisfactory in view of the goals established by President Carter for solar industrial energy, the most important objectives to be met in improving system performance, reducing cost, and identifying markets for solar IPH are outlined. The effect of government tax policy will be of little impact until technical efficiency and cost effectiveness are significantly improved.

Brown, K.

1980-04-01T23:59:59.000Z

304

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

E-Print Network (OSTI)

but solar thermal and absorption cooling are attractive, andthermal heat collection, and heat-activated cooling can befrom solar thermal Total heat load Heat for cooling Heat

Stadler, Michael

2009-01-01T23:59:59.000Z

305

Development of a Software Design Tool for Hybrid Solar-Geothermal Heat Pump  

Open Energy Info (EERE)

Software Design Tool for Hybrid Solar-Geothermal Heat Pump Software Design Tool for Hybrid Solar-Geothermal Heat Pump Systems in Heating- and Cooling-Dominated Buildings Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Development of a Software Design Tool for Hybrid Solar-Geothermal Heat Pump Systems in Heating- and Cooling-Dominated Buildings Project Type / Topic 1 Recovery Act - Geothermal Technologies Program: Ground Source Heat Pumps Project Type / Topic 2 Topic Area 2: Data Gathering and Analysis Project Description In heating-dominated buildings, the proposed design approach takes advantage of glazed solar collectors to effectively balance the annual thermal loads on the ground with renewable solar energy. In cooling-dominated climates, the design approach takes advantage of relatively low-cost, unglazed solar collectors as the heat rejecting component.

306

Transparent heat mirrors for solar-energy applications  

SciTech Connect

Transparent heat-mirror films, which transmit solar radiation but reflect ir thermal radiation, have potentially important applications in solar/thermal/electric conversion, solar heating, solar photovoltaic conversion, and window insulation. We have used rf sputtering to prepare two types of films: TiO/sub 2//Ag/TiO/sub 2/ and Sn-doped In/sub 2/O/sub 3/. To characterize the properties of heat-mirror films for solar-energy collection, we define the parameters ..cap alpha../sub eff/, the effective solar absorptivity, and epsilon/sub eff/, the effective ir emissivity. For our Sn-doped In/sub 2/O/sub 3/ films, ..cap alpha../sub eff//epsilon/sub eff/ is comparable to the values of ..cap alpha../epsilon reported for the leading selective absorbers. Even higher values of ..cap alpha../sub eff//epsilon/sub eff/ are obtained for the TiO/sub 2//Ag/TiO/sub 2/ films.

Fan, J.C.C.; Bachner, F.J.

1976-04-01T23:59:59.000Z

307

Midtemperature solar systems test faclity predictions for thermal performance based on test data: Solar Kinetics T-700 solar collector with glass reflector surface  

DOE Green Energy (OSTI)

Sandia National Laboratories, Albuquerque (SNLA), is currently conducting a program to predict the performance and measure the characteristics of commercially available solar collectors that have the potential for use in industrial process heat and enhanced oil recovery applications. The thermal performance predictions for the Solar Kinetics solar line-focusing parabolic trough collector for five cities in the US are presented. (WHK)

Harrison, T.D.

1981-03-01T23:59:59.000Z

308

California Solar Initiative - Solar Thermal Program (California...  

Open Energy Info (EERE)

Clean Energy Analysis Low Emission Development Strategies Oil & Gas Smart Grid Solar U.S. OpenLabs Utilities Water Wind Page Actions View form View source History View New...

309

Analysis of selected surface characteristics and latent heat storage for passive solar space heating  

DOE Green Energy (OSTI)

Results are presented of an analysis of the value of various technical improvements in the solar collector and thermal storage subsystems of passive solar residential, agricultural, and industrial systems for two regions of the country. The evaluated improvements are: decreased emissivity and increased absorptivity of absorbing surfaces, decreased reflectivity, and decreased emissivity of glazing surface, and the substitution of sensible heat storage media with phase change materials. The value of each improvement is estimated by the additional energy savings resulting from the improvement.

Fthenakis, V.; Leigh, R.

1981-12-01T23:59:59.000Z

310

Thermocline Thermal Storage Test for Large-Scale Solar Thermal Power Plants  

DOE Green Energy (OSTI)

Solar thermal-to-electric power plants have been tested and investigated at Sandia National Laboratories (SNL) since the late 1970s, and thermal storage has always been an area of key study because it affords an economical method of delivering solar-electricity during non-daylight hours. This paper describes the design considerations of a new, single-tank, thermal storage system and details the benefits of employing this technology in large-scale (10MW to 100MW) solar thermal power plants. Since December 1999, solar engineers at Sandia National Laboratories' National Solar Thermal Test Facility (NSTTF) have designed and are constructing a thermal storage test called the thermocline system. This technology, which employs a single thermocline tank, has the potential to replace the traditional and more expensive two-tank storage systems. The thermocline tank approach uses a mixture of silica sand and quartzite rock to displace a significant portion of the volume in the tank. Then it is filled with the heat transfer fluid, a molten nitrate salt. A thermal gradient separates the hot and cold salt. Loading the tank with the combination of sand, rock, and molten salt instead of just molten salt dramatically reduces the system cost. The typical cost of the molten nitrate salt is $800 per ton versus the cost of the sand and rock portion at $70 per ton. Construction of the thermocline system will be completed in August 2000, and testing will run for two to three months. The testing results will be used to determine the economic viability of the single-tank (thermocline) storage technology for large-scale solar thermal power plants. Also discussed in this paper are the safety issues involving molten nitrate salts and other heat transfer fluids, such as synthetic heat transfer oils, and the impact of these issues on the system design.

ST.LAURENT,STEVEN J.

2000-08-14T23:59:59.000Z

311

Nitrogen heat pipe for cryocooler thermal shunt  

SciTech Connect

A nitrogen heat pipe was designed, built and tested for the purpose of providing a thermal shunt between the two stages of a Gifford-McMahan (GM) cryocooler during cooldown. The nitrogen heat pipe has an operating temperature range between 63 and 123 K. While the heat pipe is in the temperature range during the system cooldown, it acts as a thermal shunt between the first and second stage of the cryocooler. The heat pipe increases the heat transfer to the first stage of the cryocooler, thereby reducing the cooldown time of the system. When the heat pipe temperature drops below the triple point, the nitrogen working fluid freezes, effectively stopping the heat pipe operation. A small heat leak between cryocooler stages remains because of axial conduction along the heat pipe wall. As long as the heat pipe remains below 63 K, the heat pipe remains inactive. Heat pipe performance limits were measured and the optimum fluid charge was determined.

Prenger, F.C.; Hill, D.D.; Daney, D.E.; Daugherty, M.A. [Los Alamos National Lab., NM (United States); Green, G.F.; Roth, E.W. [Naval Surface Warfare Center, Annapolis, MD (United States)

1995-09-01T23:59:59.000Z

312

Unglazed transpired solar collector having a low thermal-conductance absorber  

DOE Patents (OSTI)

An unglazed transpired solar collector using solar radiation to heat incoming air for distribution, comprises an unglazed absorber formed of low thermal-conductance material having a front surface for receiving the solar radiation and openings in the unglazed absorber for passage of the incoming air such that the incoming air is heated as it passes towards the front surface of the absorber and the heated air passes through the openings in the absorber for distribution. 3 figs.

Christensen, C.B.; Kutscher, C.F.; Gawlik, K.M.

1997-12-02T23:59:59.000Z

313

Unglazed transpired solar collector having a low thermal-conductance absorber  

DOE Patents (OSTI)

An unglazed transpired solar collector using solar radiation to heat incoming air for distribution, comprising an unglazed absorber formed of low thermal-conductance material having a front surface for receiving the solar radiation and openings in the unglazed absorber for passage of the incoming air such that the incoming air is heated as it passes towards the front surface of the absorber and the heated air passes through the openings in the absorber for distribution.

Christensen, Craig B. (Boulder, CO); Kutscher, Charles F. (Golden, CO); Gawlik, Keith M. (Boulder, CO)

1997-01-01T23:59:59.000Z

314

Preliminary requirements for thermal storage subsystems in solar thermal applications  

DOE Green Energy (OSTI)

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

Copeland, R.J.

1980-04-01T23:59:59.000Z

315

Transient heat flux shielding using thermal metamaterials  

E-Print Network (OSTI)

We have developed a heat shield based on a metamaterial engineering approach to shield a region from transient diffusive heat flow. The shield is designed with a multilayered structure to prescribe the appropriate spatial profile for heat capacity, density, and thermal conductivity of the effective medium. The heat shield was experimentally compared to other isotropic materials.

Narayana, Supradeep; Sato, Yuki

2013-01-01T23:59:59.000Z

316

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

Science Conference Proceedings (OSTI)

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

None

2012-01-01T23:59:59.000Z

317

Report on Solar Water Heating Quantitative Survey  

DOE Green Energy (OSTI)

This report details the results of a quantitative research study undertaken to better understand the marketplace for solar water-heating systems from the perspective of home builders, architects, and home buyers.

Focus Marketing Services

1999-05-06T23:59:59.000Z

318

Report on Solar Pool Heating Quantitative Survey  

DOE Green Energy (OSTI)

This report details the results of a quantitative research study undertaken to better understand the marketplace for solar pool-heating systems from the perspective of residential pool owners.

Synapse Infusion Group, Inc. (Westlake Village, California)

1999-05-06T23:59:59.000Z

319

Thermal Storage Systems for Concentrating Solar Power  

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

One challenge facing the widespread use of solar energy is reduced or curtailed energy production when the sun sets or is blocked by clouds. Thermal energy storage provides a workable solution to...

320

Solar Thermal Electric Technology Update: 2007  

Science Conference Proceedings (OSTI)

After more than a dozen years of relative inactivity, the solar thermal electric (STE) industry is seeing pronounced activity and investment. This product is intended to update the reader on these recent world-wide activities.

2008-03-31T23:59:59.000Z

Note: This page contains sample records for the topic "heat solar thermal" 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

Gap between active and passive solar heating  

DOE Green Energy (OSTI)

The gap between active and passive solar could hardly be wider. The reasons for this are discussed and advantages to narrowing the gap are analyzed. Ten years of experience in both active and passive systems are reviewed, including costs, frequent problems, performance prediction, performance modeling, monitoring, and cooling concerns. Trends are analyzed, both for solar space heating and for service water heating. A tendency for the active and passive technologies to be converging is observed. Several recommendations for narrowing the gap are presented.

Balcomb, J.D.

1985-01-01T23:59:59.000Z

322

Implementation of solar industrial process heat: summary  

SciTech Connect

The implementation of solar industrial process heat systems will depend not only on the successful development of reliable and efficient solar technologies, but also on the intelligent and sound application of process engineering principles. This poses an important challenge which must be given increasing attention if SIPH systems are to be adopted by industry. (MOW)

Kearney, D. W.

1979-11-01T23:59:59.000Z

323

Solar heating and cooling demonstration project summaries  

DOE Green Energy (OSTI)

Brief descriptive overviews are presented of the design and operating characteristics of all commercial and Federal residential solar heating and cooling systems and of the structures themselves. Also included are available pictures of the buildings and simplified solar system diagrams. A list of non-Federal residential installations is provided.

Not Available

1978-05-01T23:59:59.000Z

324

ESPEE Solar | Open Energy Information  

Open Energy Info (EERE)

Solar Place Bangalore, Karnataka, India Zip 560 091 Sector Solar Product Distributor of solar thermal water heating systems and PV lights. References ESPEE Solar1 LinkedIn...

325

Solar thermal electric: Program overview fiscal years 1993--1994  

DOE Green Energy (OSTI)

The Solar Thermal Electric Program Overview and Accomplishments for Fiscal Years 1993--1994 are documented.

NONE

1995-03-01T23:59:59.000Z

326

Geothermal/Solar Thermal Hybridization Feasibility  

Science Conference Proceedings (OSTI)

Geothermal plants often experience a slow decline in resource temperature as energy is extracted from the field, resulting in 'growth' of unused capacity. The addition of energy from solar thermal technology offers a way to restore this lost capacity, or to recover generation; especially during the hottest summer conditions when cooling systems are stressed. The objectives of this study are to outline the effects that the addition of thermal energy from a solar source has on the capital cost, performance...

2011-12-21T23:59:59.000Z

327

The Added Economic and Environmental Value of Solar Thermal Systems in  

E-Print Network (OSTI)

on the tariff structure, load profile, etc. In order to examine the impact of solar thermal and heat storage://eetd.lbl.gov/EA/EMP/emp-pubs.html The work described in this paper was funded by the Office of Electricity Delivery and Energy Reliability costs. This paper focuses on analysis of the optimal interaction of solar thermal systems, which can

328

Solar Heat-Pipe Receiver Wick Modeling  

DOE Green Energy (OSTI)

Stirling-cycle engines have been identified as a promising technology for the conversion of concentrated solar energy into usable electrical power. In previous experimented work, we have demonstrated that a heat pipe receiver can significantly improve system performance-over a directly-illuminated heater head. The design and operating conditions of a heat pipe receiver differ significantly from typical laboratory heat pipes. New wick structures have been developed to exploit the characteristics of the solar generation system. Typically, these wick structures allow vapor generation within the wick. Conventional heat pipe models do not handle this enhancement yet it can more than double the performance of the wick. In this study, I develop a steady-state model of a boiling-enhanced wick for a solar heat pipe receiver. The model is used for design-point calculations and is written in FORTRAN90. Some limited comparisons have been made with actual test data.

Andraka, C.E.

1998-12-21T23:59:59.000Z

329

Cogenerating Photovoltaic and Thermal Solar Collector  

E-Print Network (OSTI)

heat US Department of Energy: Parabolic Trough SpectroLab Concentrating Terrestrial PV Cell C1MJ CDO peak load and irradiance hours of the day #12;Design · Parabolic solar collector · GaAs PV cells

Eirinaki, Magdalini

330

Self-contained passive solar heating system  

SciTech Connect

A self-contained passive solar heating system includes first and second heat pipes, each having a refrigerant medium therein, a condenser portion and an evaporator portion, with the condenser portion of the first heat pipe being coupled to the evaporator portion of the second heat pipe for transferring heat thereto when the pressure within the first heat pipe is greater than the pressure within the second heat pipe. The evaporator portion of the first heat pipe is adapted to be exposed to a source of heat and the condenser portion of the second heat pipe contacts a medium to be heated. A temperature control mechanism may be installed as the coupling between the first and second heat pipes for uncoupling the same when the temperature within the first heat pipe falls below a predetermined temperature. Also, a third heat pipe may be provided having a thermostatic portion operatively connected to the condenser portion of the second heat pipe by a piston means so that changes in pressure within the thermostatic portion occasioned by changes in temperature of the medium to be heated will cause movement of the pistons to vary the size of the condensing portion of the second heat pipe to increase or decrease the rate of heat transfer to the medium.

Maldonado, E.A.; Woods, J.E.

1983-05-10T23:59:59.000Z

331

Frostless heat pump having thermal expansion valves  

DOE Patents (OSTI)

A heat pump system having an operable relationship for transferring heat between an exterior atmosphere and an interior atmosphere via a fluid refrigerant and further having a compressor, an interior heat exchanger, an exterior heat exchanger, a heat pump reversing valve, an accumulator, a thermal expansion valve having a remote sensing bulb disposed in heat transferable contact with the refrigerant piping section between said accumulator and said reversing valve, an outdoor temperature sensor, and a first means for heating said remote sensing bulb in response to said outdoor temperature sensor thereby opening said thermal expansion valve to raise suction pressure in order to mitigate defrosting of said exterior heat exchanger wherein said heat pump continues to operate in a heating mode.

Chen, Fang C [Knoxville, TN; Mei, Viung C [Oak Ridge, TN

2002-10-22T23:59:59.000Z

332

Ventilation and Solar Heat Storage System Offers Big Energy Savings  

Ventilation and Solar Heat Storage System Offers Big Energy Savings ... Heat is either reflected away from the building with radiant barriers, or heat is absorbed

333

Semi-transparent solar energy thermal storage device  

DOE Patents (OSTI)

A visually transmitting solar energy absorbing thermal storage module includes a thermal storage liquid containment chamber defined by an interior solar absorber panel, an exterior transparent panel having a heat mirror surface substantially covering the exterior surface thereof and associated top, bottom and side walls. Evaporation of the thermal storage liquid is controlled by a low vapor pressure liquid layer that floats on and seals the top surface of the liquid. Porous filter plugs are placed in filler holes of the module. An algicide and a chelating compound are added to the liquid to control biological and chemical activity while retaining visual clarity. A plurality of modules may be supported in stacked relation by a support frame to form a thermal storage wall structure.

McClelland, John F. (Ames, IA)

1986-04-08T23:59:59.000Z

334

Semi-transparent solar energy thermal storage device  

DOE Patents (OSTI)

A visually transmitting solar energy absorbing thermal storage module includes a thermal storage liquid containment chamber defined by an interior solar absorber panel, an exterior transparent panel having a heat mirror surface substantially covering the exterior surface thereof and associated top, bottom and side walls, Evaporation of the thermal storage liquid is controlled by a low vapor pressure liquid layer that floats on and seals the top surface of the liquid. Porous filter plugs are placed in filler holes of the module. An algicide and a chelating compound are added to the liquid to control biological and chemical activity while retaining visual clarity. A plurality of modules may be supported in stacked relation by a support frame to form a thermal storage wall structure.

McClelland, John F. (Ames, IA)

1985-06-18T23:59:59.000Z

335

Thermal Management of Solar Cells  

E-Print Network (OSTI)

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

Saadah, Mohammed Ahmed

2013-01-01T23:59:59.000Z

336

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

337

National solar heating and cooling programs  

DOE Green Energy (OSTI)

This document is a compilation of status reports on the national solar heating and cooling programs of seventeen countries participating in the Committee on the Challenges of Modern Society's Solar Energy Pilot Study. These reports were presented in two special sessions of the 25th Congress of the International Solar Energy Society held in May 1979, in Atlanta, Georgia, USA. This information exchange activity was part of the two-year follow up (1978-1980) of the Solar Energy Pilot Study, which ended in October 1978.

Blum, S; Allen, J [eds.

1979-08-01T23:59:59.000Z

338

Knox County Detention Facility Goes Solar for Heating Water | Department of  

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

Knox County Detention Facility Goes Solar for Heating Water Knox County Detention Facility Goes Solar for Heating Water Knox County Detention Facility Goes Solar for Heating Water August 16, 2010 - 12:30pm Addthis An array of solar collectors | Photo courtesy of Trane An array of solar collectors | Photo courtesy of Trane Maya Payne Smart Former Writer for Energy Empowers, EERE What are the key facts? Recovery Act grant funds solar farm to heat 14,000 gallons of water a day Estimated to save $60,000 a year 174 tons of CO2 emissions avoided annually Hot water demand soars at the six-building Knox County Detention Facility in Tennessee. It's open 24/7 with 1,036 inmate beds and 4,500 meals served daily-and don't forget the laundry. Naturally, county officials sought an alternative to costly water heating. Their solution: a $1.88 million solar thermal system, among

339

Research and Development for Novel Thermal Energy Storage Systems (TES) for Concentrating Solar Power (CSP)  

SciTech Connect

The overall objective was to develop innovative heat transfer devices and methodologies for novel thermal energy storage systems for concentrating solar power generation involving phase change materials (PCMs). Specific objectives included embedding thermosyphons and/or heat pipes (TS/HPs) within appropriate phase change materials to significantly reduce thermal resistances within the thermal energy storage system of a large-scale concentrating solar power plant and, in turn, improve performance of the plant. Experimental, system level and detailed comprehensive modeling approaches were taken to investigate the effect of adding TS/HPs on the performance of latent heat thermal energy storage (LHTES) systems.

Faghri, Amir; Bergman, Theodore L; Pitchumani, Ranga

2013-09-26T23:59:59.000Z

340

Thermal Management of Solar Cells.  

E-Print Network (OSTI)

??The focus on solar cells as a source of photovoltaic energy is rapidly increasing nowadays. The amount of sun's energy entering earth surface in one… (more)

Saadah, Mohammed Ahmed

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heat solar thermal" 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

A modular phase change heat exchanger for a solar oven  

Science Conference Proceedings (OSTI)

A modular energy storing heat exchanger designed to use pentaerythritol for thermal storage (solid-solid phase change at 182 C) is tested in an oven by circulating heat transfer oil which is electrically heated in a manner to simulate a concentrating solar collector. Three efficiencies for heating the system under controlled and measured power input are determined - the heat exchanger efficiency, the efficiency of the heater with distribution lines, and the total system efficiency. Thermal energy retention times and cooking extraction times are determined, and along with the efficiencies, are compared with the results previously reported for a nonmodular heat exchanger. The modular configuration provides a highly improved extraction rate for cooking due to its wrap-around character and its increased surface-to-volume ratio. A full scale glass model of the copper tubing of the system is described and flow observations reported demonstrating how uniformly the parallel pumping branches perform and how trapped air pockets affect pumping power. A technique for measuring pumping power is described and its application to the system is quantified to show that less than 1 watt is required to circulate the heat transfer oil even when the system includes the solar collector and its longer connecting tubes.

Bushnell, D.L.; Sohi, M. (Northern Illinois Univ., DeKalb (United States))

1992-10-01T23:59:59.000Z

342

Solar thermal repowering systems integration. Final report  

DOE Green Energy (OSTI)

This report is a solar repowering integration analysis which defines the balance-of-plant characteristics and costs associated with the solar thermal repowering of existing gas/oil-fired electric generating plants. Solar repowering interface requirements for water/steam and salt or sodium-cooled central receivers are defined for unit sizes ranging from 50 MWe non-reheat to 350 MWe reheat. Finally balance-of-plant cost estimates are presented for each of six combinations of plant type, receiver type and percent solar repowering.

Dubberly, L. J.; Gormely, J. E.; McKenzie, A. W.

1979-08-01T23:59:59.000Z

343

Green Energy Ohio - GEO Solar Thermal Rebate Program | Department of Energy  

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

Ohio - GEO Solar Thermal Rebate Program Ohio - GEO Solar Thermal Rebate Program Green Energy Ohio - GEO Solar Thermal Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Solar Water Heating Program Info Start Date 04/01/2009 State Ohio Program Type Non-Profit Rebate Program Provider Green Energy Ohio With funding from The Sierra Club, Green Energy Ohio (GEO) is offering rebates on residential properties in Ohio for solar water heating systems purchased after April 1, 2009. The rebates are based on the projected energy output from the solar collectors and are calculated at $30 per kBtu/day (based on SRCC rating for "Clear Day/C Interval"). The maximum amount is $2,400 per applicant. There are two parts to the application. PART I of the application collects

344

Concentrating Solar Program; Session: Thermal Storage - Overview (Presentation)  

DOE Green Energy (OSTI)

The project overview of this presentation is: (1) description--(a) laboratory R and D in advanced heat transfer fluids (HTF) and thermal storage systems; (b) FOA activities in solar collector and component development for use of molten salt as a heat transfer and storage fluid; (c) applications for all activities include line focus and point focus solar concentrating technologies; (2) Major FY08 Activities--(a) advanced HTF development with novel molten salt compositions with low freezing temperatures, nanofluids molecular modeling and experimental studies, and use with molten salt HTF in solar collector field; (b) thermal storage systems--cost analysis and updates for 2-tank and thermocline storage and model development and analysis to support near-term trought deployment; (c) thermal storage components--facility upgrade to support molten salt component testing for freeze-thaw receiver testing, long-shafted molten salt pump for parabolic trough and power tower thermal storage systems; (d) CSP FOA support--testing and evaluation support for molten salt component and field testing work, advanced fluids and storage solicitation preparation, and proposal evaluation for new advanced HTF and thermal storage FOA.

Glatzmaier, G.; Mehos, M.; Mancini, T.

2008-04-01T23:59:59.000Z

345

Stability of thermal structures with an internal heating source  

E-Print Network (OSTI)

We study the thermal equilibrium and stability of isobaric, spherical structures having a radiation source located at its center. The thermal conduction coefficient, external heating and cooling rates are represented as power laws of the temperature. The internal heating decreases with distance from the source r approximately as exp(-tau)/(r**2), being tau the optical depth. We find that the influence of the radiation source is important only in the central region, but its effect is enough to make the system thermally unstable above a certain threshold central temperature. This threshold temperature decreases as the internal heating efficiency increases, but, otherwise, it does not depend on the structure size. Our results suggest that a solar-like star migrating into a diffuse interstellar region may destabilize the surrounding medium.

Sanchez, Nestor

2008-01-01T23:59:59.000Z

346

Stability of thermal structures with an internal heating source  

E-Print Network (OSTI)

We study the thermal equilibrium and stability of isobaric, spherical structures having a radiation source located at its center. The thermal conduction coefficient, external heating and cooling rates are represented as power laws of the temperature. The internal heating decreases with distance from the source r approximately as exp(-tau)/(r**2), being tau the optical depth. We find that the influence of the radiation source is important only in the central region, but its effect is enough to make the system thermally unstable above a certain threshold central temperature. This threshold temperature decreases as the internal heating efficiency increases, but, otherwise, it does not depend on the structure size. Our results suggest that a solar-like star migrating into a diffuse interstellar region may destabilize the surrounding medium.

Nestor Sanchez; Eugenio Lopez

2008-03-10T23:59:59.000Z

347

Turbulent Heating in the Solar Wind and in the Solar Corona  

E-Print Network (OSTI)

In this paper we calculate the turbulent heating rates in the solar wind using the Kolmogorov-like MHD turbulence phenomenology with Kolmogorov's constants calculated by {\\it Verma and Bhattacharjee }[1995b,c]. We find that the turbulent heating can not account for the total heating of the nonAlfv\\'enic streams in the solar wind. We show that dissipation due to thermal conduction is also a potential heating source. Regarding the Alfv\\'enic streams, the predicted turbulent heating rates using the constants of {\\it Verma and Bhattacharjee }[1995c] are higher than the observed heating rates; the predicted dissipation rates are probably overestimates because Alfv\\'enic streams have not reached steady-state. We also compare the predicted turbulent heating rates in the solar corona with the observations; the Kolmogorov-like phenomenology predicts dissipation rates comparable to the observed heating rates in the corona [{\\it Hollweg, }% 1984], but Dobrowoly et al.'s generalized Kraichnan model yields heating rates much less than that required.

Mahendra K. Verma

1995-09-05T23:59:59.000Z

348

Turbulent Heating in the Solar Wind and in the Solar Corona  

E-Print Network (OSTI)

In this paper we calculate the turbulent heating rates in the solar wind using the Kolmogorov-like MHD turbulence phenomenology with Kolmogorov’s constants calculated by Verma and Bhattacharjee [1995b,c]. We find that the turbulent heating can not account for the total heating of the nonAlfvénic streams in the solar wind. We show that dissipation due to thermal conduction is also a potential heating source. Regarding the Alfvénic streams, the predicted turbulent heating rates using the constants of Verma and Bhattacharjee [1995c] are higher than the observed heating rates; the predicted dissipation rates are probably overestimates because Alfvénic streams have not reached steady-state. We also compare the predicted turbulent heating rates in the solar corona with the observations; the Kolmogorov-like phenomenology predicts dissipation rates comparable to the observed heating rates in the corona [Hollweg, 1984], but Dobrowoly et al.’s generalized Kraichnan model yields heating rates much less than that required. 1 1

Mahendra K. Verma

2008-01-01T23:59:59.000Z

349

THERMOCHEMICAL HEAT STORAGE FOR CONCENTRATED SOLAR POWER  

SciTech Connect

Thermal energy storage (TES) is an integral part of a concentrated solar power (CSP) system. It enables plant operators to generate electricity beyond on sun hours and supply power to the grid to meet peak demand. Current CSP sensible heat storage systems employ molten salts as both the heat transfer fluid and the heat storage media. These systems have an upper operating temperature limit of around 400 C. Future TES systems are expected to operate at temperatures between 600 C to 1000 C for higher thermal efficiencies which should result in lower electricity cost. To meet future operating temperature and electricity cost requirements, a TES concept utilizing thermochemical cycles (TCs) based on multivalent solid oxides was proposed. The system employs a pair of reduction and oxidation (REDOX) reactions to store and release heat. In the storage step, hot air from the solar receiver is used to reduce the oxidation state of an oxide cation, e.g. Fe3+ to Fe2+. Heat energy is thus stored as chemical bonds and the oxide is charged. To discharge the stored energy, the reduced oxide is re-oxidized in air and heat is released. Air is used as both the heat transfer fluid and reactant and no storage of fluid is needed. This project investigated the engineering and economic feasibility of this proposed TES concept. The DOE storage cost and LCOE targets are $15/kWh and $0.09/kWh respectively. Sixteen pure oxide cycles were identified through thermodynamic calculations and literature information. Data showed the kinetics of re-oxidation of the various oxides to be a key barrier to implementing the proposed concept. A down selection was carried out based on operating temperature, materials costs and preliminary laboratory measurements. Cobalt oxide, manganese oxide and barium oxide were selected for developmental studies to improve their REDOX reaction kinetics. A novel approach utilizing mixed oxides to improve the REDOX kinetics of the selected oxides was proposed. It partially replaces some of the primary oxide cations with selected secondary cations. This causes a lattice charge imbalance and increases the anion vacancy density. Such vacancies enhance the ionic mass transport and lead to faster re-oxidation. Reoxidation fractions of Mn3O4 to Mn2O3 and CoO to Co3O4 were improved by up to 16 fold through the addition of a secondary oxide. However, no improvement was obtained in barium based mixed oxides. In addition to enhancing the short term re-oxidation kinetics, it was found that the use of mixed oxides also help to stabilize or even improve the TES properties after long term thermal cycling. Part of this improvement could be attributed to a reduced grain size in the mixed oxides. Based on the measurement results, manganese-iron, cobalt-aluminum and cobalt iron mixed oxides have been proposed for future engineering scale demonstration. Using the cobalt and manganese mixed oxides, we were able to demonstrate charge and discharge of the TES media in both a bench top fixed bed and a rotary kiln-moving bed reactor. Operations of the fixed bed configuration are straight forward but require a large mass flow rate and higher fluid temperature for charging. The rotary kiln makes direct solar irradiation possible and provides significantly better heat transfer, but designs to transport the TES oxide in and out of the reactor will need to be defined. The final reactor and system design will have to be based on the economics of the CSP plant. A materials compatibility study was also conducted and it identified Inconel 625 as a suitable high temperature engineering material to construct a reactor holding either cobalt or manganese mixed oxides. To assess the economics of such a CSP plant, a packed bed reactor model was established as a baseline. Measured cobalt-aluminum oxide reaction kinetics were applied to the model and the influences of bed properties and process parameters on the overall system design were investigated. The optimal TES system design was found to be a network of eight fixed bed reactors at 18.75 MWth each with charge and

PROJECT STAFF

2011-10-31T23:59:59.000Z

350

Financing Solar Thermal Power Plants  

DOE Green Energy (OSTI)

The commercialization of concentrating solar power technology took a major step forward in the mid 1980s and early 1990s with the development of the SEGS plants in California. Over the years they have proven that parabolic trough power technologies are the most cost-effective approach for commercial scale solar power generation in the sunbelt countries of the world. However, the question must be asked why no additional solar power plants have been build following the bankruptcy of the developer of the SEGS projects, LUZ International Limited. Although many believe the SEGS projects were a success as a result of parabolic trough technology they employ, in truth, the SEGS projects were developed simply because they represented an attractive opportunity for investors. Simply stated, no additional projects have been developed because no one has been able to put together a similarly attractive financial package to potential investors. More than $1.2 billion in private capital was raised i n debt and equity financing for the nine SEGS plants. Investors and bankers who make these investments are the real clients for solar power technologies. They are not interested in annual solar to electric efficiencies, but in risk, return on investments, and coverage ratios. This paper will take a look at solar power projects from the financier's perspective. The challenge in moving forward is to attract private investors, commercial lenders, and international development agencies and to find innovative solutions to the difficult issues that investment in the global power market poses for solar power technologies.

Price, H. W.; Kistner, R.

1999-11-01T23:59:59.000Z

351

OpenEI - solar thermal  

Open Energy Info (EERE)

Summary World Solar Summary World Solar Energy Data (from World on the Edge) http://en.openei.org/datasets/node/460 This dataset presents summary information related to world solar energy. It is part of a supporting dataset for the book World On the Edge: How to Prevent Environmental and Economic Collapse by Lester R.

License
352

Siting Your Solar Water Heating System | Department of Energy  

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

Siting Your Solar Water Heating System Siting Your Solar Water Heating System Siting Your Solar Water Heating System May 30, 2012 - 2:46pm Addthis Solar water heaters should be placed facing due south. Solar water heaters should be placed facing due south. Before you buy and install a solar water heating system, you need to first consider your site's solar resource, as well as the optimal orientation and tilt of your solar collector. The efficiency and design of a solar water heating system depends on how much of the sun's energy reaches your building site. Solar water heating systems use both direct and diffuse solar radiation. Even if you don't live in a climate that's warm and sunny most of the time -- like the southwestern United States -- your site still might have an adequate solar resource. If your building site has unshaded areas and

353

Siting Your Solar Water Heating System | Department of Energy  

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

Siting Your Solar Water Heating System Siting Your Solar Water Heating System Siting Your Solar Water Heating System May 30, 2012 - 2:46pm Addthis Solar water heaters should be placed facing due south. Solar water heaters should be placed facing due south. Before you buy and install a solar water heating system, you need to first consider your site's solar resource, as well as the optimal orientation and tilt of your solar collector. The efficiency and design of a solar water heating system depends on how much of the sun's energy reaches your building site. Solar water heating systems use both direct and diffuse solar radiation. Even if you don't live in a climate that's warm and sunny most of the time -- like the southwestern United States -- your site still might have an adequate solar resource. If your building site has unshaded areas and

354

Development and demonstration of compound parabolic concentrators for solar thermal power generation and heating and cooling applications. Progress report, July--December 1975  

DOE Green Energy (OSTI)

Work on the development of Compound Parabolic Concentrators (CPC) is described. A tenfold concentrator with a cavity receiver was constructed and tested. The optical efficiency was very good (65 percent), but the thermal performance was degraded by heat losses of the cavity receiver. A 20 ft/sup 2/ (1.86 m/sup 2/) concentrating collector (5.3x) has been tested for thermal and optical performance, and the optical efficiency was excellent (68 percent). In this collector, aluminum extrusions were used to define the CPC shape and provide the fluid-flow path. A 30 ft (9.14 m) long collector (10x) has been designed and is being built for daily-cycle testing. The expected performance of this collector has been evaluated. The conceptual design of a lightweight collector using evacuated glass tubes around the absorber is presented. Various construction techniques for use with low-cost materials, such as plastics, are being evaluated for this collector. Optical design studies of Compound Parabolic Concentrators for tubular absorbers and for use as secondary concentrators are discussed. Comparison of the CPC with tube and the CPC with one-sided flat absorber shows that the tubular configuration is preferable not only because of lower heat losses but also because of lower collector cost. For tracking concentrators with line focus, the use of second-stage concentrators is found to be cost effective; the CPC is found to be significantly better for this application than a V-trough. A summary of the results of subcontracts described in the previous progress report are presented, and the influence of these results on ANL programs is noted.

Allen, J.W.; Levitz, N.M.; Rabl, A.; Reed, K.A.; Schertz, W.W.; Thodos, G.; Winston, R.

1977-01-01T23:59:59.000Z

355

Orlando Utilities Commission - Residential Solar Loan Program...  

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

For Solar Buying & Making Electricity Heating & Cooling Water Heating Maximum Rebate Solar PV: 20,000 Solar Thermal: 7,500 Program Information Florida Program Type Utility...

356

Solar thermal electric power information user study  

DOE Green Energy (OSTI)

The results of a series of telephone interviews with groups of users of information on solar thermal electric power are described. These results, part of a larger study on many different solar technologies, identify types of information each group needed and the best ways to get information to each group. The report is 1 of 10 discussing study results. The overall study provides baseline data about information needs in the solar community. An earlier study identified the information user groups in the solar community and the priority (to accelerate solar energy commercialization) of getting information to each group. In the current study only high-priority groups were examined. Results from five solar thermal electric power groups of respondents are analyzed: DOE-Funded Researchers, Non-DOE-Funded Researchers, Representatives of Utilities, Electric Power Engineers, and Educators. The data will be used as input to the determination of information products and services the Solar Energy Research Institute, the Solar Energy Information Data Bank Network, and the entire information outreach community should be preparing and disseminating.

Belew, W.W.; Wood, B.L.; Marle, T.L.; Reinhardt, C.L.

1981-02-01T23:59:59.000Z

357

Comparison of natural convection heat exchangers for solar water heating systems  

DOE Green Energy (OSTI)

Thermosyphon heat exchangers are used in indirect solar water heating systems to avoid using a pump to circulate water from the storage tank to the heat exchanger. In this study, the authors consider the effect of heat exchanger design on system performance. They also compare performance of a system with thermosyphon flow to the same system with a 40W pump in the water loop. In the first part of the study, the authors consider the impact of heat exchanger design on the thermal performance of both one- and two-collector solar water heaters. The comparison is based on Solar Rating and Certification Corporation (SRCC) OG300 simulations. The thermosyphon heat exchangers considered are (1) a one-pass, double wall, 0.22 m{sup 2}, four tube-in-shell heat exchanger manufactured by AAA Service and Supply, Inc., (the Quad-Rod); (2) a two-pass, double wall, 0.2 m{sup 2}, tube-in-shell made by Heliodyne, Inc., but not intended for commercial development; (3) a one-pass, single wall, 0.28 m{sup 2}, 31 tube-in-shell heat exchanger from Young Radiator Company, and (4) a one-pass single-wall, 0.61 m{sup 2}, four coil-in-shell heat exchanger made by ThermoDynamics Ltd. The authors compare performance of the systems with thermosyphon heat exchangers to a system with a 40 W pump used with the Quad-Rod heat exchanger. In the second part of the study, the effects of reducing frictional losses through the heat exchanger and/or the pipes connecting the heat exchanger to the storage tank, and increasing heat transfer area are evaluated in terms of OG300 ratings.

Davidson, J.; Liu, W.

1998-09-15T23:59:59.000Z

358

Measuring solar reflectance Part I: Defining a metric that accurately predicts solar heat gain  

E-Print Network (OSTI)

estimate solar heat gains in the cooling and heatingof E891BN solar irradiance economic value of annual heatingglobal solar re?ectance, ? R summer , and that the heating

Levinson, Ronnen

2010-01-01T23:59:59.000Z

359

Correlation between thermal expansion and heat capacity  

E-Print Network (OSTI)

Theoretically predicted linear correlation between the volume coefficient of thermal expansion and the thermal heat capacity was investigated for highly symmetrical atomic arrangements. Normalizing the data of these thermodynamic parameters to the Debye temperature gives practically identical curves from zero Kelvin to the Debye temperature. This result is consistent with the predicted linear correlation. At temperatures higher than the Debye temperature the normalized values of the thermal expansion are always higher than the normalized value of the heat capacity. The detected correlation has significant computational advantage since it allows calculating the volume coefficient of thermal expansion from one experimental data by using the Debye function.

Jozsef Garai

2004-04-25T23:59:59.000Z

360

DOE Funds 15 New Projects to Develop Solar Power Storage and Heat Transfer  

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

Funds 15 New Projects to Develop Solar Power Storage and Heat Funds 15 New Projects to Develop Solar Power Storage and Heat Transfer Projects For Up to $67.6 Million DOE Funds 15 New Projects to Develop Solar Power Storage and Heat Transfer Projects For Up to $67.6 Million September 19, 2008 - 3:43pm Addthis WASHINGTON - U.S. Department of Energy (DOE) today announced selections for negotiations of award under the Funding Opportunity Announcement (FOA), Advanced Heat Transfer Fluids and Novel Thermal Storage Concepts for Concentrating Solar Power Generation. These 15 new projects, for up to approximately $67.6 million, will facilitate the development of lower-cost energy storage for concentrating solar power (CSP) technology. These projects support President Bush's Solar America Initiative, which aims to make solar energy cost-competitive with conventional forms of electricity

Note: This page contains sample records for the topic "heat solar thermal" 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

Santa Clara Water & Sewer- Solar Water Heating Program  

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

In 1975, the City of Santa Clara established the nation's first municipal solar utility. Under the Solar Water Heating Program, the Santa Clara Water & Sewer Utilities Department supplies,...

362

Modelling Concentrating Solar Power with Thermal Energy Storage...  

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

Modelling Concentrating Solar Power with Thermal Energy Storage for Integration Studies Marissa Hummon 3 rd International Solar Power Integration Workshop October 20-22, 2013...

363

Solar Thermal/PV | OpenEI  

Open Energy Info (EERE)

Thermal/PV Thermal/PV Dataset Summary Description Provides annual consumption (in quadrillion Btu) of renewable energy by energy use sector (residential, commercial, industrial, transportation and electricity) and by energy source (e.g. solar, biofuel) for 2004 through 2008. Original sources for data are cited on spreadsheet. Also available from: www.eia.gov/cneaf/solar.renewables/page/trends/table1_2.xls Source EIA Date Released August 01st, 2010 (4 years ago) Date Updated Unknown Keywords annual energy consumption biodiesel Biofuels biomass energy use by sector ethanol geothermal Hydroelectric Conventional Landfill Gas MSW Biogenic Other Biomass renewable energy Solar Thermal/PV Waste wind Wood and Derived Fuels Data application/vnd.ms-excel icon RE Consumption by Energy Use Sector, Excel file (xls, 32.8 KiB)

364

Solar heating demonstration. Final report  

DOE Green Energy (OSTI)

The demonstration involved a 4-panel solar collector mounted on the industrial arts building. A 120 gallon storage tank supplements a 66 gallon electric hot water heater which supplies hot water for 5 shop wash basins, girl's and boy's lavatories, and a pressure washer in the auto shop. The installation and educational uses of the system are described. (MHR)

Bonicatto, L.; Kozak, C.

1980-01-01T23:59:59.000Z

365

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

E-Print Network (OSTI)

Concentrating Solar Combined Heat and Power Systemfor Distributed Concentrating Solar Combined Heat and Powerin parabolic trough solar power technology. Journal of Solar

Norwood, Zachary Mills

2011-01-01T23:59:59.000Z

366

On Thermally Forced Circulations over Heated Terrain  

Science Conference Proceedings (OSTI)

A combination of analytical and numerical models is used to gain insight into the dynamics of thermally forced circulations over diurnally heated terrain. Solutions are obtained for two-layer flows (representing the boundary layer and the ...

Daniel J. Kirshbaum

2013-06-01T23:59:59.000Z

367

Proceedings of the solar thermal technology conference  

SciTech Connect

The Solar Thermal Technology Conference was held on August 26-28, 1987, at the Marriott Hotel, Albuquerque, New Mexico. The meeting was sponsored by the United States Department of Energy and Sandia National Laboratories. Topics covered during the conference included a status summary of the Sandia Solar Thermal Development Project, perspectives on central and distributed receiver technology including energy collection and conversion technologies, systems analyses and applications experiments. The proceedings contain summaries (abstracts and principal visual aids) of the presentations made at the conference.

Tyner, C.E. (ed.)

1987-08-01T23:59:59.000Z

368

Ultrafast thermal cycling of solar panels  

SciTech Connect

Two new cyclers that utilize a novel hybrid approach to perform fast thermal cycling of solar panels have been built and are now operational in the Mechanics and Materials Technology Center at The Aerospace Corporation. These cyclers are part of a continuing effort to minimize solar cell life test durations by accelerating the cycling rates. These fully automated cyclers, which provide continuous unmanned cycling in a gaseous nitrogen atmosphere, can execute 5 min cycles, thus yielding in excess of 100,000 cycles per year. They also have a unique capability of verifying solar panel functionality without interruption of cycling, so that cycling doesn`t continue on nonfunctioning panels.

Wall, T.S.; Valenzuela, P.R.; Sue, C.

1998-08-15T23:59:59.000Z

369

Solar heat storages in district heating Klaus Ellehauge Thomas Engberg Pedersen  

E-Print Network (OSTI)

July 2007 . #12;#12;Solar heat storages in district heating networks July 2007 Klaus Ellehauge 97 22 11 tep@cowi.dk www.cowi.com #12;#12;Solar heat storages in district heating networks 5 in soil 28 5.3 Other experienced constructions: 30 6 Consequences of establishing solar heat in CHP areas

370

Tehachapi solar thermal system first annual report  

DOE Green Energy (OSTI)

The staff of the Southwest Technology Development Institute (SWTDI), in conjunction with the staff of Industrial Solar Technology (IST), have analyzed the performance, operation, and maintenance of a large solar process heat system in use at the 5,000 inmate California Correctional Institution (CCI) in Tehachapi, CA. This report summarizes the key design features of the solar plant, its construction and maintenance histories through the end of 1991, and the performance data collected at the plant by a dedicated on-site data acquisition system (DAS).

Rosenthal, A. [Southwest Technology Development Inst., Las Cruces, NM (US)

1993-05-01T23:59:59.000Z

371

Transparent heat mirrors for passive solar heating applications  

DOE Green Energy (OSTI)

Recent progress in the development of transparent heat mirror coatings for energy-efficient windows and passive solar applications is reviewed. It appears that cost-efficient coatings promising savings of 25 to 75%, depending upon application, may be available to window manufacturers and homeowners in the next one to three years. Performance, applications, and limitations are discussed.

Selkowitz, S.

1978-03-01T23:59:59.000Z

372

Solar collector and heat and cold generator  

SciTech Connect

This invention is directed to a collector designed and positioned for installations within a predetermined range of latitudes without modification of collector position, construction, or tracking the sun's movement, and comprises a generator of hot or cold fluid by solar energy collection during the day to heat the fluid and/or chilling of the fluid at nocturnal nighttime.

Risser, J.A.

1982-04-13T23:59:59.000Z

373

Prototype solar heating and hot water systems  

DOE Green Energy (OSTI)

This document is a collection of two quarterly status reports from Colt, Inc., covering the period from October 1, 1977 through June 30, 1978. Colt is developing two prototype solar heating and hot water systems consisting of the following subsystems: collector, storage, control, transport, hot water, and auxiliary energy. The two systems are being installed at Yosemite, California and Pueblo, Colorado.

Not Available

1978-04-01T23:59:59.000Z

374

Inexpensive solar-wood water heating combinations  

SciTech Connect

A promising batch heater recently built and now being tested consists of lengths of eight-inch galvanized culvert pipe painted with semiselective black coating, hooked in series and tied in as part of a passive closed loop, unpressurized solar-wood water heating combination. One 10-foot length of eight-inch culvert contains 14.6 gallons of water. Eight-inch culvert provides a near optimum surface area per unit volume ratio, resulting in quicker, more efficient solar water heating. Moreover, the proposed arrangement minimizes the mixing of hot with cold water as warm water is used, often a problem with many types of batch heaters. Details for constructing this type of batch heater are provided. The system is an unpressurized, closed loop set-up, which means that the same liquid circulates continually from solar heater to wood heater to storage tank heat exchanger. The collector design is a variation on the inverted batch heater which takes its inspiration from a number of solar designers of similar units and introduces several additional measures to take advantage of the wood heating connection and to improve the design based on operating experience.

Poitras, R.

1980-01-01T23:59:59.000Z

375

Prototype solar heating and cooling systems  

DOE Green Energy (OSTI)

A collection of quarterly reports from the AiResearch Manufacturing Company covering the period July 12, 1976, through December 31, 1977, is presented. AiResearch Manufacturing Company is developing eight prototype solar heating and cooling systems. This effort calls for the development, manufacture, test, system installation, maintenance, problem resolution, and performance evaluation. The systems are 3, 25 and 75-ton size units.

Not Available

1978-03-01T23:59:59.000Z

376

Portable type solar heat cooker assembly  

SciTech Connect

A portable type solar heat cooker assembly including a cooking glass tube comprising an outer bottomed glass tube and an inner bottomed glass tube coated with a selective absorption film showing a high absorptivity in the solar radiation spectrum zone and a low absorptivity in the heat radiation spectrum zone. The inner tube is coaxially inserted into the outer tube and hermetically sealed together at their open ends, with a space therebetween being evacuated to vacuum. A case is provided to open on hinges and to receive the cooking glass tube at its central portion. A curved reflector is bisymmetrically provided on the case, which forms a reflex mirror for the solar rays when the case is opened. A tiltable stand attached to the outside of the case is provided to support the case in an inclined state.

Takeuchi, H.; Mikiya, T.

1984-04-17T23:59:59.000Z

377

Thermoelectrics Combined with Solar Concentration for Electrical and Thermal Cogeneration  

E-Print Network (OSTI)

and Electrical Cogeneration ……………………. …………… 16 2.4.OptimalELECTRICAL AND THERMAL COGENERATION A thesis submitted inFOR ELECTRICAL AND THERMAL COGENERATION A solar tracker and

Jackson, Philip Robert

2012-01-01T23:59:59.000Z

378

Renewable energy technologies for federal facilities: Solar water heating  

SciTech Connect

This sheet presents information on solar water heaters (passive and active), solar collectors (flat plate, evacuated tube, parabolic trough), lists opportunities for use of solar water heating, and describes what is required and the costs. Important terms are defined.

1996-05-01T23:59:59.000Z

379

Rechargeable Heat Battery's Secret Revealed: Solar Energy Capture...  

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

Rechargeable Heat Battery Rechargeable Heat Battery's Secret Revealed Solar energy capture in chemical form makes it storable and transportable January 11, 2011 | Tags: Chemistry,...

380

Liquid Metal, a Heat Transport Fluid for High Temperature Solar ...  

Science Conference Proceedings (OSTI)

The need for high efficiency and direct heat conversion into hydrogen, process heat and energy storage pushes the temperature for solar concentrator systems.

Note: This page contains sample records for the topic "heat solar thermal" 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

Building Codes and Regulations for Solar Water Heating Systems...  

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

Codes and Regulations for Solar Water Heating Systems Building Codes and Regulations for Solar Water Heating Systems June 24, 2012 - 1:50pm Addthis Photo Credit: iStockphoto Photo...

382

KIUC - Solar Water Heating Loan Program | Department of Energy  

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

with zero-interest loans for solar water heating systems. The loan is available for installations of new systems, or to replace solar water heating systems that are over 15...

383

KIUC - Solar Water Heating Rebate Program | Department of Energy  

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

800 rebate for each solar water heating system installed. The rebate is available for installations of new systems, or to replace solar water heating systems that are over 15...

384

Solar Water Heating with Low-Cost Plastic Systems (Brochure)  

DOE Green Energy (OSTI)

Newly developed solar water heating technology can help Federal agencies cost effectively meet the EISA requirements for solar water heating in new construction and major renovations. This document provides design considerations, application, economics, and maintenance information and resources.

Not Available

2012-01-01T23:59:59.000Z

385

Control system for solar heating and cooling  

DOE Green Energy (OSTI)

A control system is being developed that will be capable of operating solar heating and cooling systems covering a wide range of configurations, and using different operating strategies that may be optimal for different climatic regions. To insure widespread applicability of the control system, it is being designed to allow for modification for operating with essentially all practical heating and cooling system configurations and control algorithms simply by interchange of replaceable modules in the circuitry. An experimental heating and cooling system, the main purpose of which is to allow testing and exercise of the controller, was designed so that it could be operated in these various configurations.

Wahlig, M.; Binnall, E.; Dols, C.; Graven, R.; Selph, F.; Shaw, R.; Simmons, M.

1975-08-01T23:59:59.000Z

386

A two dimensional thermal network model for a photovoltaic solar wall  

Science Conference Proceedings (OSTI)

A two dimensional thermal network model is proposed to predict the temperature distribution for a section of photovoltaic solar wall installed in an outdoor room laboratory in Concordia University, Montreal, Canada. The photovoltaic solar wall is constructed with a pair of glass coated photovoltaic modules and a polystyrene filled plywood board as back panel. The active solar ventilation through a photovoltaic solar wall is achieved with an exhaust fan fixed in the outdoor room laboratory. The steady state thermal network nodal equations are developed for conjugate heat exchange and heat transport for a section of a photovoltaic solar wall. The matrix solution procedure is adopted for formulation of conductance and heat source matrices for obtaining numerical solution of one dimensional heat conduction and heat transport equations by performing two dimensional thermal network analyses. The temperature distribution is predicted by the model with measurement data obtained from the section of a photovoltaic solar wall. The effect of conduction heat flow and multi-node radiation heat exchange between composite surfaces is useful for predicting a ventilation rate through a solar ventilation system. (author)

Dehra, Himanshu [1-140 Avenue Windsor, Lachine, Quebec (Canada)

2009-11-15T23:59:59.000Z

387

Status of Solar-Thermal Electric Technology  

Science Conference Proceedings (OSTI)

This report evaluates the performance of three leading solar-thermal power plant concepts to assess their future use as sources of power for U.S. utilities. The trough system is commercially available now as a marginally competitive fossil hybrid. The central receiver and dish concentrator systems show more attractive potential but require additional component and system development.

1989-12-15T23:59:59.000Z

388

Solar thermal power today and tomorrow  

DOE Green Energy (OSTI)

This article is a look at the status of solar thermal power plant design and application. The topics of the article include US DOE involvement, trough-electric systems as a current alternative to conventional electric power production, and central receiver systems and dish/Stirling systems as alternatives to fossil-fuel power plants within the next five years.

Mancini, T.R.; Chavez, J.M.; Kolb, G.J. (Sandia National Labs., Albuquerque, NM (United States). Solar Thermal Technology Dept.)

1994-08-01T23:59:59.000Z

389

Solar Thermal Electric Technology in 2004  

Science Conference Proceedings (OSTI)

This report summarizes progress in the solar thermal electric (STE) industry during 2004. It addresses noteworthy policy decisions, economic considerations, and technological advances. It also provides a status report for selected key demonstrations, as well as analysis and context from EPRI experts and consultants.

2005-03-28T23:59:59.000Z

390

A NEW SOLAR THERMAL RECEIVER UTILIZING SMALL PARTICLES  

E-Print Network (OSTI)

of advanced concept solar power plants. For conditions offor the operation of a solar power plant is very small.success or failure of the solar thermal power program may be

Hunt, Arlon J.

2011-01-01T23:59:59.000Z

391

Potential for supplying solar thermal energy to industrial unit operations  

DOE Green Energy (OSTI)

Previous studies have identified major industries deemed most appropriate for the near-term adoption of solar thermal technology to provide process heat; these studies have been based on surveys that followed standard industrial classifications. This paper presents an alternate, perhaps simpler analysis of this potential, considered in terms of the end-use of energy delivered to industrial unit operations. For example, materials, such as animal feed, can be air dried at much lower temperatures than are currently used. This situation is likely to continue while economic supplies of natural gas are readily available. However, restriction of these supplies could lead to the use of low-temperature processes, which are more easily integrated with solar thermal technology. The adoption of solar technology is also favored by other changes, such as the relative rates of increase of the costs of electricity and natural gas, and by energy conservation measures. Thus, the use of low-pressure steam to provide process heat could be replaced economically with high-temperature hot water systems, which are more compatible with solar technology. On the other hand, for certain operations such as high-temperature catalytic and distillation processes employed in petroleum refining, there is no ready alternative to presently employed fluid fuels.

May, E.K.

1980-04-01T23:59:59.000Z

392

Development of Concentrating Solar Thermal Power  

E-Print Network (OSTI)

(Draft under Consideration by the World Bank) In May 2004, the World Bank submitted a status report on the GEF co-financed solar thermal portfolio to the GEF Council. In response to Council comments, the Bank subsequently commissioned an external assessment of the World Bank/GEF’s strategy for the market development of concentrating solar thermal power. The consultant was selected through a competitive procurement process, following World Bank procedures. The selected consortium, the Global Research Alliance, is led by CSIR-South Africa, and includes the Fraunhofer Institute for Systems and Innovation Research, Fraunhofer Institute for Solar Energy Systems, and CSIRO-Australia. The report’s findings and recommendations are now under consideration by the World Bank. Council Members are invited to comment on the report, by July 15, 2005.

Gef Council; Concentrating Solar; Thermal Power; Copied To Mr. Rohit Khanna; Senior Operations Officer; Steve Szewczuk; Csir South Africa; Thomas Engelmann; Michael Geyer; Juan Granados; Andreas Haeberle; Haeussermann Tewfik Hasni; David Kearney; Ludger Lorych; Thomas Mancini; Abdellah Mdarhri; Paul Nava; Joachim Nick-leptin; Hani El Nokrashy; Robert Pitz; Klaus-peter Pischke; Hank Price; Jürgen Ratzinger; Thomas Rueckert; David Saul; Franz Trieb; Christine Woerlen

2005-01-01T23:59:59.000Z

393

Survey of solar thermal energy storage subsystems for thermal/electric applications  

SciTech Connect

A survey of the current technology and estimated costs of subsystems for storing the thermal energy produced by solar collectors is presented. The systems considered were capable of producing both electricity and space conditioning for three types of loads: a single-family detached residence, an apartment complex of 100 units, and a city of 30,000 residents, containing both single-family residences and apartments. Collector temperatures will be in four ranges: (1) 100 to 250/sup 0/F (used for space heating and single-cycle air conditioners and organic Rankine low-temperature turbines); (2) 300 to 400/sup 0/F (used for dual-cycle air conditioners and low-temperature turbines); (3) 400 to 600/sup 0/F (using fluids from parabolic trough collectors to run Rankine turbines); (4) 800 to 1000/sup 0/F (using fluids from heliostats to run closed-cycle gas turbines and steam Rankine turbines). The solar thermal energy subsystems will require from 60 to 36 x 10/sup 5/ kWhr (2.05 x 10/sup 5/ to 1.23 x 10/sup 10/ Btu) of thermal storage capacity. In addition to sensible heat and latent heat storage materials, several other media were investigated as potential thermal energy storage materials, including the clathrate and semiclathrate hydrates, various metal hydrides, and heat storage based on inorganic chemical reactions.

Segaser, C. L.

1978-08-01T23:59:59.000Z

394

Economic performance of passive solar heating: a preliminary analysis  

DOE Green Energy (OSTI)

As the interest in solar energy applications for residential space heating grows, it becomes imperative to evaluate the economic performance of alternative designs. For the thermal storage wall two types of storage medium--masonry (Trombe) and water are examined. In addition a night insulation option is included in the thermal storage wall concept, thus giving rise to four alternative passive designs. The economic performance of these alternative designs are evaluated on a state-by-state basis. Discussion of the methodology briefly reviews the architectural design criteria, solar performance characteristics, and the incremental solar cost of each solar design. Also included is a discussion of conventional energy costs, as well as the optimal sizing/feasibility criterion employed in the economic performance analysis. Nationwide feasibility results are reviewed for each alternative design. In addition to contracting the solar systems themselves, the effects of two incentive proposals--the National Energy Act (NEA) income tax credits and low interest loads--upon each design are examined. Finally, major conclusions are summarized for each design.

Roach, F.; Noll, S.; Ben-David, S.

1978-01-01T23:59:59.000Z

395

State of Solar Thermal Energy Storage Development 2010  

Science Conference Proceedings (OSTI)

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

2010-12-23T23:59:59.000Z

396

Solar Thermal Electrolytic Production of Metals from Their Oxides  

Science Conference Proceedings (OSTI)

Symposium, Alternative Energy Resources for Metals and Materials Production Symposium. Presentation Title, Solar Thermal Electrolytic Production of Metals ...

397

Table 10.7 Solar Thermal Collector Shipments by Market ...  

U.S. Energy Information Administration (EIA)

Energy Information Administration ... Table 10.7 Solar Thermal Collector Shipments by Market Sector, ... Special collectors are evacuated tube ...

398

Progress Energy Carolinas - SunSense Commercial Solar Water Heating...  

Open Energy Info (EERE)

Fed. Government, Industrial, Institutional, Local Government, Nonprofit, Schools, State Government Eligible Technologies Solar Water Heat Active Incentive No Implementing...

399

Long-duration thermal storage for solar-thermal high-pressure steam IPH  

DOE Green Energy (OSTI)

Solar-thermal central-receiver systems are cost effective for electric-power and industrial process-heat applications. Systems employing molten nitrate salt as both receiver working fluid and storage have previously been evaluated for diurnal thermal storage. This study evaluates the potential of employing a molten salt receiver for a baseload industrial process plant requiring saturated steam at 68 atm (1000 psi). Two types of thermal storage are evaluated: molten salt, and air and rock. When thermal storage of six hours or less is used, molten nitrate salt alone is the optimum storage. For more than six hours, the optimum storage is a combination of molten salt and air and rock. The air and rock system uses a molten-salt-to-air heat exchanger and a thermocline rock bed heated and cooled by the air. The economic potential of the system is determined. The results depend on the relative cost of fossil fuel and the solar thermal energy costs. The optimum quantity of storage is highly variable, and the range is from no storage to a long duration capacity - 48 hours.

Copeland, R.J.; Stern, C.; Leach, J.W.

1982-12-01T23:59:59.000Z

400

Experimental Research of Sleeping Bed Integrated with PCM Heat Storage and Solar Heating  

Science Conference Proceedings (OSTI)

This paper puts forward a new way of using solar energy and Phase Change Material (PCM): the integration of PCM, sleeping bed and solar energy. The cavity of sleeping bed is filled with PCM. The sleeping bed is a heat storage device charged by solar ... Keywords: Solar heating, Sleeping bed, PCM heat storage

Guoqing Yu; Ji Qiang; Huizhong Zhao; Zonghu Lv

2009-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "heat solar thermal" 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

Survey of hybrid solar heat pump drying systems  

Science Conference Proceedings (OSTI)

Solar drying is in practice since the ancient time for preservation of food and agriculture crops. The objective of most drying processes is to reduce the moisture content of the product to a specified value. Solar dryers used in agriculture for food ... Keywords: coefficient of performance (COP), direct expansion SAHD, drying chamber, heat pump, solar assisted heat pumps dryer (SAHPD), solar fraction

R. Daghigh; K. Sopian; M. H. Ruslan; M. A. Alghoul; C. H. Lim; S. Mat; B. Ali; M. Yahya; A. Zaharim; M. Y. Sulaiman

2009-02-01T23:59:59.000Z

402

Joule Heating and Anomalous Resistivity in the Solar Corona  

E-Print Network (OSTI)

Recent radioastronomical observations of Faraday rotation in the solar corona can be interpreted as evidence for coronal currents, with values as large as $2.5 \\times 10^9$ Amperes (Spangler 2007). These estimates of currents are used to develop a model for Joule heating in the corona. It is assumed that the currents are concentrated in thin current sheets, as suggested by theories of two dimensional magnetohydrodynamic turbulence. The Spitzer result for the resistivity is adopted as a lower limit to the true resistivity. The calculated volumetric heating rate is compared with an independent theoretical estimate by Cranmer et al (2007). This latter estimate accounts for the dynamic and thermodynamic properties of the corona at a heliocentric distance of several solar radii. Our calculated Joule heating rate is less than the Cranmer et al estimate by at least a factor of $3 \\times 10^5$. The currents inferred from the observations of Spangler (2007) are not relevant to coronal heating unless the true resistivity is enormously increased relative to the Spitzer value. However, the same model for turbulent current sheets used to calculate the heating rate also gives an electron drift speed which can be comparable to the electron thermal speed, and larger than the ion acoustic speed. It is therefore possible that the coronal current sheets are unstable to current-driven instabilities which produce high levels of waves, enhance the resistivity and thus the heating rate.

Steven R. Spangler

2008-12-22T23:59:59.000Z

403

Flexible thermal cycle test equipment for concentrator solar cells  

SciTech Connect

A system and method for performing thermal stress testing of photovoltaic solar cells is presented. The system and method allows rapid testing of photovoltaic solar cells under controllable thermal conditions. The system and method presents a means of rapidly applying thermal stresses to one or more photovoltaic solar cells in a consistent and repeatable manner.

Hebert, Peter H. (Glendale, CA); Brandt, Randolph J. (Palmdale, CA)

2012-06-19T23:59:59.000Z

404

Semi-empirical method for estimating the performance of direct gain passive solar heated buildings  

DOE Green Energy (OSTI)

The sunspot code for performance analysis of direct gain passive solar heated buildings is used to calculate the annual solar fraction for two representative designs in ten American cities. The two representative designs involve a single thermal storage mass configuration which is evaluated with and without night insulation. In both cases the solar aperture is double glazed. The results of the detailed thermal network calculations are then correlated using the monthly solar load ratio method which has already been successfully applied to the analysis of both active solar heated buildings and passive thermal storage wall systems. The method is based on a correlation between the monthly solar heating fraction and the monthly solar load ratio. The monthly solar load ratio is defined as the ratio of the monthly solar energy transmitted through the glazing aperture to the building's monthly thermal load. The procedure using the monthly method for any location is discussed in detail. In addition, a table of annual performance results for 84 cities is presented, enabling the designer to bypass the monthly method for these locations.

Wray, W.O.; Balcomb, J.D.; McFarland, R.D.

1979-01-01T23:59:59.000Z

405

Midtemperature solar systems test facility predictions for thermal performance based on test data: solar kinetics T-600 solar collector with FEK 244 reflector surface  

DOE Green Energy (OSTI)

Sandia National Laboratories, Albuquerque (SNLA), is currently conducting a program to predict the performance and measure the characteristics of commercially available solar collectors that have the potential for use in industrial process heat and enhanced oil recovery applications. The thermal performance predictions for the Solar Kinetics T-600 solar line-focusing parabolic trough collector are presented for three output temperatures at five cities in the US. (WHK)

Harrison, T.D.

1981-04-01T23:59:59.000Z

406

Sandia National Laboratories: National Solar Thermal Test Facility  

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

ECISEnergyRenewable EnergySolar EnergyConcentrating Solar Power ECISEnergyRenewable EnergySolar EnergyConcentrating Solar Power (CSP)National Solar Thermal Test Facility National Solar Thermal Test Facility NSTTF Interactive Tour National Solar Thermal Test Facility (NSTTF) Operated by Sandia National Laboratories for the U.S. Department of Energy (DOE), the National Solar Thermal Test Facility (NSTTF) is the only test facility of this type in the United States. The NSTTF's primary goal is to provide experimental engineering data for the design, construction, and operation of unique components and systems in proposed solar thermal electrical plants planned for large-scale power generation. In addition, the site was built and instrumented to provide test facilities for a variety of solar and nonsolar applications. The facility can provide

407

Baoding Solar Thermal Equipment Company | Open Energy Information  

Open Energy Info (EERE)

Equipment Company Equipment Company Jump to: navigation, search Name Baoding Solar Thermal Equipment Company Place Baoding, Hebei Province, China Sector Solar Product Solar water heating system manufacturer. Coordinates 38.855011°, 115.480217° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.855011,"lon":115.480217,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

408

Lakeland Electric - Solar Water Heating Program | Department of Energy  

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

Lakeland Electric - Solar Water Heating Program Lakeland Electric - Solar Water Heating Program Lakeland Electric - Solar Water Heating Program < Back Eligibility Residential Savings Category Heating & Cooling Solar Water Heating Program Info Start Date June 2010 State Florida Program Type Other Incentive Provider Lakeland Electric Lakeland Electric, a municipal utility in Florida, is the nation's first utility to offer solar-heated domestic hot water on a "pay-for-energy" basis. The utility has contracted with a solar equipment vendor, Regenesis Lakeland, LLC, to install solar water heaters on participating customers' homes. Lakeland Electric bills the customer $34.95 per month regardless of use. Each solar heater is metered and equipped with a heating element timer as a demand management feature. The $34.95 monthly charge is a bulk energy

409

Experimental Research on Solar Assisted Heat Pump Heating System with Latent Heat Storage  

E-Print Network (OSTI)

Based on the status quo that conventional energy sources are more and more reduced and environmental pollution is increasingly serious, this paper presents a new model system of conserving energy and environmental protection, namely, a Solar Assisted Heat Pump Heating System with Latent Heat Storage. In this system, solar energy is the major heat source for a heat pump, and the supplementary heat source is soil. The disagreement in time between the space heat load and heat collected by solar heat collector is solved by latent heat storage. In order to obtain such system running conditions and effects in different heating periods, an experiment has been carried out during the whole heating period in Harbin, China. The experimental results show that this system is much better for heating in initial and late periods than that in middle periods. The average heating coefficient is 6.13 for heating in initial and late periods and 2.94 for heating in middle periods. At the same time, this paper also predicts system running properties in other regions.

Han, Z.; Zheng, M.; Liu, W.; Wang, F.

2006-01-01T23:59:59.000Z

410

Analysis of the technical and economic feasibility of solar feedwater heating for El Paso Electric Company  

DOE Green Energy (OSTI)

A solar feedwater heating system consisting of a linear focusing solar collector subsystem, a thermal energy transport subsystem, and possibly a thermal energy storage subsystem is studied for integration with an existing steam power cycle system. The solar heating system is described. The proposed system concept is compared to several previously published studies. An economic evaluation of the costs and benefits of modifying the existing unit to employ solar feedwater heating was performed. The levelized value of the fuel oil savings were determined by a computer program over the remaining economic life of the unit, based on solar insolation data for El Paso and relevant economic factors for four cases. The conceptual design refinements and documented cost breakdown are given. (LEW)

Not Available

1980-02-01T23:59:59.000Z

411

Solar heating and hot water system installed at St. Louis, Missouri. Final report  

DOE Green Energy (OSTI)

Information is provided on the solar heating and hot water system installed at the William Tao and Associates, Inc., office building in St. Louis, Missouri. The information consists of description, photos, maintenance and construction problems, final drawing, system requirements and manufacturer's component data. The solar system was designed to provide 50% of the hot water requirements and 45% of the space heating needs for a 900 square foot office space and drafting room. The solar facility has 252 square foot of glass tube concentrator collectors and a 1000 gallon steel storage tank buried below a concrete slab floor. Freeze protection is provided by a propylene glycol/water mixture in the collector loop. The collectors are roof mounted on a variable tilt array which is adjusted seasonally and is connected to the solar thermal storage tank by a tube-in-shell heat exchanger. Incoming city water is preheated through the solar energy thermal storage tank.

Not Available

1980-04-01T23:59:59.000Z

412

SolarOil Project, Phase I preliminary design report. [Solar Thermal Enhanced Oil Recovery project  

DOE Green Energy (OSTI)

The preliminary design of the Solar Thermal Enhanced Oil Recovery (SolarOil) Plant is described in this document. This plant is designed to demonstrate that using solar thermal energy is technically feasible and economically viable in enhanced oil recovery (EOR). The SolarOil Plant uses the fixed mirror solar concentrator (FMSC) to heat high thermal capacity oil (MCS-2046) to 322/sup 0/C (611/sup 0/F). The hot fluid is pumped from a hot oil storage tank (20 min capacity) through a once-through steam generator which produces 4.8 MPa (700 psi) steam at 80% quality. The plant net output, averaged over 24 hr/day for 365 days/yr, is equivalent to that of a 2.4 MW (8.33 x 10/sup 6/ Btu/hr) oil-fired steam generator having an 86% availability. The net plant efficiency is 57.3% at equinox noon, a 30%/yr average. The plant will be demonstrated at an oilfield site near Oildale, California.

Baccaglini, G.; Bass, J.; Neill, J.; Nicolayeff, V.; Openshaw, F.

1980-03-01T23:59:59.000Z

413

City of Tallahassee Utilities - Solar Water Heating Rebate | Department of  

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

Tallahassee Utilities - Solar Water Heating Rebate Tallahassee Utilities - Solar Water Heating Rebate City of Tallahassee Utilities - Solar Water Heating Rebate < Back Eligibility Installer/Contractor Residential Savings Category Heating & Cooling Solar Water Heating Program Info State Florida Program Type Utility Rebate Program Rebate Amount 450 Provider City of Tallahassee Utilities The City of Tallahassee Utilities offers a $450 rebate to homeowners* and homebuilders who install a solar water-heating system. This rebate may be applied to a first-time installation or to the replacement of an older solar water-heating system. Homebuilders may also apply for the rebate when installing a solar water heater on a new home. Pool heating systems are not eligible for the rebate. The homeowner must allow the City of Tallahassee to conduct an energy audit

414

Progress in solar thermal distributed receiver technology  

DOE Green Energy (OSTI)

The author reports the status of research on distributed receivers, which are solar thermal collectors which concentrate sunlight on an absorber and do not employ the central receiver concept. Point-focusing collectors such as the parabolic dish, line-focusing collectors such as the parabolic trough, and the fixed-mirror distributed-focus of hemispheric bowl collectors are the most common receivers. Following an overview of fundamental principals, there is a description of several installations and of the organic Rankine Cycle engine and the Solarized Automotive Gas Turbine projects. Future development will explore other types of power cycles, new materials, and other components and designs. 5 references, 6 figures.

Leonard, J.A.; Otts, J.V.

1985-08-01T23:59:59.000Z

415

Residential Solar Water Heating Rebates | Department of Energy  

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

Residential Solar Water Heating Rebates Residential Solar Water Heating Rebates Residential Solar Water Heating Rebates < Back Eligibility Residential Savings Category Heating & Cooling Commercial Heating & Cooling Solar Heating Water Heating Maximum Rebate $1,900 Program Info Funding Source New Hampshire Renewable Energy Fund (REF) Start Date 04/21/2010 Expiration Date When funding is exhausted State New Hampshire Program Type State Rebate Program Rebate Amount $1,500, $1,700 or $1,900, depending on annual estimated system output Provider New Hampshire Public Utilities Commission New Hampshire offers a rebate for residential solar water-heating systems and solar space-heating systems. The rebate is equal to $1,500 for systems with an annual estimated output of 5.5 MMBTU to 19.9 MMBTU; $1,700 for

416

Thermoeconomic Analysis of a Solar Heat-Pump System  

E-Print Network (OSTI)

This paper introduces a solar energy heat-pump system and analyzes the thermoeconomics. The results show that the solar energy heat-pump system can be operated in different modes and used for room heating in winter and cooling in summer and/or heating a hot water supply. The results also show that the efficiency of the system's components and how the investment costs greatly affect the wide acceptability and use of the system. Solar energy is clean and renewable and having not to pay the solar energy costs, the solar energy heat-pump system is still attractive and will have a large market.

Gao, Y.; Wang, S.

2006-01-01T23:59:59.000Z

417

A new paradigm for solar coronal heating  

E-Print Network (OSTI)

The solar coronal heating problem refers to the question why the temperature of the Sun's corona is more than two orders of magnitude higher than that of its surface. Almost 70 years after the discovery, this puzzle is still one of the major challenges in astrophysics. The current basic paradigm of coronal heating is unable to explain all the observational features of the heating. Here we argue that a new paradigm is required to solve the puzzle in a self-consistent manner. The alternative approach is based on the kinetic theory of drift waves. We show, with qualitative and quantitative arguments, that the drift waves have the potential to satisfy all coronal heating requirements.

Vranjes, J

2009-01-01T23:59:59.000Z

418

Solar heating and cooling in the Los Alamos National Security and Resources Study Center  

DOE Green Energy (OSTI)

A description is given of the solar energy system for the National Security and Resources Study Center, a conference center and library at the Los Alamos Scientific Laboratory, Los Alamos, New Mexico. The solar heating and cooling system makes use of selectively coated collectors, hot storage, cold storage, night evaporative cold storage, heat recovery, a lithium bromide chiller, and a Rankine-cycle chiller. Data are given for the performance of the system for the years 1978 and 1979. The solar energy system has provided 76% of the energy required to heat the building and 97% of the thermal energy required to cool the building.

Hedstrom, J.C.; Murray, H.S.

1980-12-01T23:59:59.000Z

419

Handbook of experiences in the design and installation of solar heating and cooling systems  

DOE Green Energy (OSTI)

A large array of problems encountered are detailed, including design errors, installation mistakes, cases of inadequate durability of materials and unacceptable reliability of components, and wide variations in the performance and operation of different solar systems. Durability, reliability, and design problems are reviewed for solar collector subsystems, heat transfer fluids, thermal storage, passive solar components, piping/ducting, and reliability/operational problems. The following performance topics are covered: criteria for design and performance analysis, domestic hot water systems, passive space heating systems, active space heating systems, space cooling systems, analysis of systems performance, and performance evaluations. (MHR)

Ward, D.S.; Oberoi, H.S.

1980-07-01T23:59:59.000Z

420

Near-term viability of solar heat applications for the federal sector  

DOE Green Energy (OSTI)

Solar thermal technologies are capable of providing heat across a wide range of temperatures, making them potentially attractive for meeting energy requirements for industrial process heat applications and institutional heating. The energy savings that could be realized by solar thermal heat are quite large, potentially several quads annually. Although technologies for delivering heat at temperatures above 100{degrees}C currently exit within industry, only a fairly small number of commercial systems have been installed to date. The objective of this paper is to investigate and discuss the prospects for near-term solar heat sales to federal facilities as a mechanism for providing an early market niche to the aid the widespread development and implementation of the technology. The specific technical focus is on mid-temperature (100{degrees}--350{degrees}C) heat demands that could be met with parabolic trough systems. Federal facilities have several relative to private industry that may make them attractive for solar heat applications relative to other sectors. Key features are specific policy mandates for conserving energy, a long-term planning horizon with well-defined decision criteria, and prescribed economic return criteria for conservation and solar investments that are generally less stringent than the investment criteria used by private industry. Federal facilities also have specific difficulties in the sale of solar heat technologies and strategies to mitigate these difficulties will be important. For the baseline scenario developed in this paper, the solar heat application was economically competitive with heat provided by natural gas. The system levelized energy cost was $5.9/MBtu for the solar heat case, compared to $6.8/MBtu for the life-cycle fuel cost of a natural gas case. A third-party ownership would also be attractive to federal users, since it would guarantee energy savings and would not need initial federal funds. 11 refs., 2 figs., 3 tabs.

Williams, T.A.

1991-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "heat solar thermal" 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

Developing, testing, evaluating and optimizing solar heating systems. Project status report for October and November 1996  

DOE Green Energy (OSTI)

This report describes progress on 3 projects: Integrated tank/heat exchanger modeling and experiments for solar thermal storage; Advanced residential solar domestic hot water systems; and Incident angle modifiers (IAMs) by the Monte Carlo method for cylindrical solar collectors. IAMs are used to correct for effects such as shading, back plane reflectance, inter-reflection, etc. Summaries are given for the first two projects; however, a full draft report is given for the third.

NONE

1997-01-01T23:59:59.000Z

422

AWSWAH - the heat pipe solar water heater  

Science Conference Proceedings (OSTI)

An all weather heat pipe solar water heater (AWSWAH) comprising a collector of 4 m/sup 2/ (43 ft/sup 2/) and a low profile water tank of 160 liters (42 gal.) was developed. A single heat pipe consisting of 30 risers and two manifolds in the evaporator and a spiral condenser was incorporated into the AWSWAH. Condensate metering was done by synthetic fiber wicks. The AWSWAH was tested alongside two conventional solar water heaters of identical dimensions, an open loop system and a closed loop system. It was found that the AWSWAH was an average of 50% more effective than the open system in the temperature range 30-90 /sup 0/C (86-194 /sup 0/F). The closed loop system was the least efficient of the three systems.

Akyurt, M.

1986-01-01T23:59:59.000Z

423

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

424

CONTROLS FOR SOLAR HEATING AND COOLING  

SciTech Connect

An experimental test facility for solar heating and cooling has been constructed to evaluate the operation and performance of an LBLdeveloped solar controller that has promising commercial potential. The LBL controller was designed to be intermediate in performance between a simple differential thermostat and an on-line microprocessor. The PROM~based controller operates the solar system according to a preprogrammed algorithm that translates operating state conditions (fluid temperatures, switch positions, comparator outputs) into a set of operating instructions (open or close valves, turn pumps on or off). The operating algorithm can be changed by reprogramming or exchanging the plug-in integrated circuit component, or by changing the sensors selected for comparison. The experimental solar heating system can be operated using different control algorithms, input meteorological conditions, and output load demands. In FY 1979 the test facility became operational and initial testing began. Emphasis has been on refinement of system instrumentation and the development of necessary computer software to run the facility and perform data analysis. Preliminary energy balance experiments with the load and collector loops under microcomputer control were successfully completed in November 1979. Experiment modifications have been completed to permit variable-flow and proportional-flow control of the collector loop. A series of experimental comparisons of proportional and on/off collector loop strategies are planned using typical meteorological year data. The evaluation of configurations for combined domestic hot water and heating systems has begun to determine necessary experiment modifications to test one and two tank domestic hot water systems in combination with hydronic space heating systems. Other work has included the application of theoretical models to describe dynamic collector operation and building temperature response. Theoretical analysis of the energy collection performance of on/off and proportional flow control collector loop strategies has been completed. Papers have been presented at the Second System Simulation and Economics Conference held in January 1980 in San Diego. Technical program support activities, in cooperation with SERI and SAN, are continuing.

Warren, Mashuri L.; Schiller, Steven R.; Wahlig, Michael

1980-03-01T23:59:59.000Z

425

Beaches Energy Services - Solar Water Heating Rebate Program | Department  

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

Beaches Energy Services - Solar Water Heating Rebate Program Beaches Energy Services - Solar Water Heating Rebate Program Beaches Energy Services - Solar Water Heating Rebate Program < Back Eligibility Residential Savings Category Heating & Cooling Solar Water Heating Maximum Rebate One rebate per customer Rebates will not exceed purchase price Program Info State Florida Program Type Utility Rebate Program Rebate Amount Solar Water Heater: $500 Provider Beaches Energy Services Beaches Energy Services offers a solar water heating rebate to their residential customers. This $500 rebate applies to new systems which are properly installed and certified. New construction and solar pool heating systems do not qualify for the rebate payment. Systems must be installed by a licensed Florida contractor and must be FSEC certified. Rebates will not

426

Survey of solar thermal test facilities  

DOE Green Energy (OSTI)

The facilities that are presently available for testing solar thermal energy collection and conversion systems are briefly described. Facilities that are known to meet ASHRAE standard 93-77 for testing flat-plate collectors are listed. The DOE programs and test needs for distributed concentrating collectors are identified. Existing and planned facilities that meet these needs are described and continued support for most of them is recommended. The needs and facilities that are suitable for testing components of central receiver systems, several of which are located overseas, are identified. The central contact point for obtaining additional details and test procedures for these facilities is the Solar Thermal Test Facilities Users' Association in Albuquerque, N.M. The appendices contain data sheets and tables which give additional details on the technical capabilities of each facility. Also included is the 1975 Aerospace Corporation report on test facilities that is frequently referenced in the present work.

Masterson, K.

1979-08-01T23:59:59.000Z

427

Stratified thermal storage in residential solar energy applications  

DOE Green Energy (OSTI)

The benefits of thermal stratification in sensible heat storage were investigated for several residential solar applications. The operation of space heating, air conditioning and water heating systems with water storage was simulated on a computer. The performance of comparable systems with mixed and stratified storage was determined in terms of the fraction of the total load supplied by solar energy. The effects of design parameters such as collector efficiency, storage volume, tank geometry, etc., on the relative advantage of stratified over well-mixed storage were assessed. The results show that significant improvements in system performance (5 to 15%) may be realized if stratification can be maintained in the storage tank. The magnitude of the improvement is greatest and the sensitivity to design variables is smallest in the service hot water application. The results also show that the set of design parameters which describes the optimum system is likely to be substantially different for a system employing stratified storage than for a mixed storage system. In both the water heating and space heating applications collector flowrates lower than currently suggested for mixed storage systems were found to yield optimum performance for a system with stratified storage.

Sharp, M.K.; Loehrke, R.I.

1978-06-01T23:59:59.000Z

428

Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications  

E-Print Network (OSTI)

R. a. , 2012, “Molecular Solar Thermal (MOST) Energy Storageand Nocera D. G. , 2010, “Solar Energy Supply and Storage20] Kalogirou S. a. , 2004, “Solar Thermal Collectors and

Coso, Dusan

2013-01-01T23:59:59.000Z

429

Heat extraction from salinity-gradient solar ponds using heat pipe heat exchangers  

Science Conference Proceedings (OSTI)

This paper presents the results of experimental and theoretical analysis on the heat extraction process from solar pond by using the heat pipe heat exchanger. In order to conduct research work, a small scale experimental solar pond with an area of 7.0 m{sup 2} and a depth of 1.5 m was built at Khon Kaen in North-Eastern Thailand (16 27'N102 E). Heat was successfully extracted from the lower convective zone (LCZ) of the solar pond by using a heat pipe heat exchanger made from 60 copper tubes with 21 mm inside diameter and 22 mm outside diameter. The length of the evaporator and condenser section was 800 mm and 200 mm respectively. R134a was used as the heat transfer fluid in the experiment. The theoretical model was formulated for the solar pond heat extraction on the basis of the energy conservation equations and by using the solar radiation data for the above location. Numerical methods were used to solve the modeling equations. In the analysis, the performance of heat exchanger is investigated by varying the velocity of inlet air used to extract heat from the condenser end of the heat pipe heat exchanger (HPHE). Air velocity was found to have a significant influence on the effectiveness of heat pipe heat exchanger. In the present investigation, there was an increase in effectiveness by 43% as the air velocity was decreased from 5 m/s to 1 m/s. The results obtained from the theoretical model showed good agreement with the experimental data. (author)

Tundee, Sura; Terdtoon, Pradit; Sakulchangsatjatai, Phrut [Department of Mechanical Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200 (Thailand); Singh, Randeep; Akbarzadeh, Aliakbar [Energy Conservation and Renewable Energy Group, School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, Bundoora East Campus, Bundoora, Victoria 3083 (Australia)

2010-09-15T23:59:59.000Z

430

Catastrophic cooling and cessation of heating in the solar corona  

E-Print Network (OSTI)

Condensations in the more than 10^6 K hot corona of the Sun are commonly observed in the extreme ultraviolet (EUV). While their contribution to the total solar EUV radiation is still a matter of debate, these condensations certainly provide a valuable tool for studying the dynamic response of the corona to the heating processes. We investigate different distributions of energy input in time and space to investigate which process is most relevant for understanding these coronal condensations. For a comparison to observations we synthesize EUV emission from a time-dependent, one-dimensional model for coronal loops, where we employ two heating scenarios: simply shutting down the heating and a model where the heating is very concentrated at the loop footpoints, while keeping the total heat input constant. The heating off/on model does not lead to significant EUV count rates that one observes with SDO/AIA. In contrast, the concentration of the heating near the footpoints leads to thermal non-equilibrium near the l...

Peter, H; Kamio, S

2011-01-01T23:59:59.000Z

431

Experimental evaluation of a simulation model for wrap-around heat exchanger, solar storage tanks  

DOE Green Energy (OSTI)

The thermal performance of a commercially available 80 gallon, solar storage tank with an integral wrap-around heat exchanger is characterized experimentally an indoor test stand. The experimental results are used to evaluated the accuracy of a previously developed simulation model. Heat input on the collector side of the heat exchanger is held constant causing the heat transfer to reach a quasi-steady state. Temperatures in the heat exchanger and tank increase with time, however, the temperature differences across the heat exchanger remain nearly constant. Several combinations of heat input and collector loop flow are investigated. The development of the tank temperature profiles over time and the overall heat transfer performance predicted by the model are compared with experimental results. The influence of an electric auxiliary heater located in the top of the solar storage tank on the heat exchanger performance is investigated. Experimental normalization of the model is considered and modifications to the model and experiments are recommended.

Miller, J.A.; Hittle, D.C.

1995-05-01T23:59:59.000Z

432

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

E-Print Network (OSTI)

but solar thermal and absorption cooling are attractive, andthermal heat collection, and heat-activated cooling can bethe cooling offset by utilization of solar thermal heat,

Stadler, Michael

2009-01-01T23:59:59.000Z

433

Unique Solar Thermal Laboratory Gets an Upgrade | Department of Energy  

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

Unique Solar Thermal Laboratory Gets an Upgrade Unique Solar Thermal Laboratory Gets an Upgrade Unique Solar Thermal Laboratory Gets an Upgrade September 10, 2010 - 2:54pm Addthis This “power tower” is part of the National Solar Thermal Test Facility in Albuquerque, which is getting upgrades through Recovery Act funding. | Photo Courtesy of Sandia National Laboratories This "power tower" is part of the National Solar Thermal Test Facility in Albuquerque, which is getting upgrades through Recovery Act funding. | Photo Courtesy of Sandia National Laboratories Lorelei Laird Writer, Energy Empowers The National Solar Thermal Test Facility at Sandia National Laboratories is unique - and in demand. The Facility has been instrumental in NASA tests, national defense programs and concentrated solar technology development.

434

Anisotropic turbulent model for solar coronal heating  

E-Print Network (OSTI)

Context : We present a self-consistent model of solar coronal heating, originally developed by Heyvaert & Priest (1992), in which we include the dynamical effect of the background magnetic field along a coronal structure by using exact results from wave MHD turbulence (Galtier et al. 2000). Aims : We evaluate the heating rate and the microturbulent velocity for comparison with observations in the quiet corona, active regions and also coronal holes. Methods :The coronal structures are assumed to be in a turbulent state maintained by the slow erratic motions of the magnetic footpoints. A description for the large-scale and the unresolved small-scale dynamics are given separately. From the latter, we compute exactly (or numerically for coronal holes) turbulent viscosites that are finally used in the former to close self-consistently the system and derive the heating flux expression. Results : We show that the heating rate and the turbulent velocity compare favorably with coronal observations. Conclusions : Although the Alfven wave turbulence regime is strongly anisotropic, and could reduce a priori the heating efficiency, it provides an unexpected satisfactory model of coronal heating for both magnetic loops and open magnetic field lines.

B. Bigot; S. Galtier; H. Politano

2007-12-12T23:59:59.000Z

435

Optimisation of Concentrating Solar Thermal Power Plants with Neural Networks  

E-Print Network (OSTI)

Optimisation of Concentrating Solar Thermal Power Plants with Neural Networks Pascal Richter1 of solar power for energy supply is of in- creasing importance. While technical development mainly takes introduce our tool for the optimisation of parameterised solar thermal power plants, and report

Ábrahám, Erika

436

EWEB - Residential Solar Water Heating Loan Program | Department of Energy  

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

EWEB - Residential Solar Water Heating Loan Program EWEB - Residential Solar Water Heating Loan Program EWEB - Residential Solar Water Heating Loan Program < Back Eligibility Residential Savings Category Heating & Cooling Solar Swimming Pool Heaters Water Heating Maximum Rebate $7,000 Program Info State Oregon Program Type Utility Loan Program Rebate Amount Up to 75% of system cost after rebate Provider Eugene Water and Electric Board Eugene Water and Electric Board (EWEB) offers residential customers a loan and cash discount program called, "The Bright Way To Heat Water." The program is designed to promote the installation of solar water heaters and solar pool heating systems. It began in May 1990 as part of a demand-side management initiative. The loans have been offered since May 1995. EWEB provides all funding for both loans and cash discounts. Customers may

437

Solar Water Heating Incentive Program | Department of Energy  

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

Solar Water Heating Incentive Program Solar Water Heating Incentive Program Solar Water Heating Incentive Program < Back Eligibility Agricultural Commercial Industrial Institutional Local Government Nonprofit Residential Schools State Government Savings Category Heating & Cooling Solar Swimming Pool Heaters Water Heating Maximum Rebate Varies by sector, location, technology, and electric or gas provider; see below for details Program Info Start Date October 2003 State Oregon Program Type State Rebate Program Rebate Amount Varies by sector, water heating fuel, and electric or gas provider; see below for details Provider Energy Trust of Oregon Beginning in the fall of 2003, Energy Trust of Oregon's Solar Water Heating (SWH) Incentive Program offers incentives to customers of Pacific Power, PGE, NW Natural Gas and Cascade Natural Gas who install solar water or pool

438

BALDR-1: a solar thermal system simulation  

DOE Green Energy (OSTI)

A solar thermal system simulation (BALDR-1) was written in a modular fashion to facilitate expansion and modification. The flexibility of the simulation is derived, in part, from the use of three separate models to constitute the system simulation: FIELD, POWER, and ECON. Each model can be run independently, or they may be coupled and run as a set. The FIELD code models the optical and thermal performance of the collector field. It has separate optical and thermal performance routines for each generic collector type. Meteorological data is read in 15-minute or hourly increments. The POWER code models the performance of power conversion and storage components. It calculates the total thermal and/or electrical energy produced during the year for a set of plant configurations comprised of different collector field sizes, thermal storage sizes, and electrical storage sizes. The POWER code allows the selection of one of several control strategies in the dispatch of thermal and electrical storage. The ECON code calculates the initial capital cost of each power plant configuration modelled in POWER. This capital cost is combined with operations and maintenance costs to calculate a life-cycle busbar energy cost and simple payback period for each plant.

Finegold, J.G.; Herlevich, F.A.

1980-01-01T23:59:59.000Z

439

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

440

Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications  

E-Print Network (OSTI)

of Photochemical and Photovoltaic Solar Energy Converters,”of solar energy in either photovoltaic or solar thermalphotovoltaic (PV) systems,[13,82,83] and solar thermal systems (energy

Coso, Dusan

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "heat solar thermal" 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

Performance of a solar energy-assisted heat pump heating system: analysis and correlation of field-collected data  

SciTech Connect

An analysis of building energy usage and thermal load for the Solar Building during the winter heating seasons of 1974-75 and 1975-76 is reported. The one-story office building is located in Albuquerque, New Mexico. Its mechanical heating and cooling equipment is categorized as a solar-assisted heat pump system consisting of solar collectors, water thermal storage, a water-to-water heat pump and five smaller water-to-air heat pump packaged units. Building energy usage was examined with emphasis on the time of day energy was consumed and the source from which the energy was obtained; i.e., from the electricity for lighting, office equipment and mechanical equipment, and from the heat output of the thermal storage and heat pumps. The rate of electrical energy consumption was found to be very dependent on building use. High rates of electrical energy usage during occupied periods required cooling during parts of even the coldest days. Mechanical equipment heating was found to vary as a function of building usage as well as a function of the indoor-outdoor temperature differential. Energies supplied to and withdrawn from the building were examined and are presented for hourly, daily, and seasonal periods. A comparison of the two heating seasons was made. Energy losses and gains from the building to the surroundings were examined for both steady-state and transient load profiles. Envelope conductive heat losses and losses due to infiltration and ventilation were calculated using actual weather data through the use of the Building Environmental Analysis Program (BEAP). The effect of building thermal storage on heating and cooling loads was examined and a set of building balance-point temperatures was established. Comparisons between the building energy consumption and a calculated load were made for hourly, daily, and seasonal periods.

Williams, R.C.

1979-08-01T23:59:59.000Z

442

Micro/Nano-Scale Phase Change Systems for Thermal Management and Solar Energy Conversion Applications  

E-Print Network (OSTI)

2009, “Solar Thermal Power Plants,” The European PhysicalThermal Energy Storage for Parabolic Trough Power Plants,”fuel based power plants, and most nuclear and solar thermal

Coso, Dusan

2013-01-01T23:59:59.000Z

443

Turbulent heating of the corona and solar wind: the heliospheric  

E-Print Network (OSTI)

of telegraph services - Once per 500 years (ice cores) - Solar-terrestrial connection - Interplanetary space of radiators - Dust environment - Cp/Cg problems - Solar panels and power #12;Solar Probe Plus 2018 launch 35Turbulent heating of the corona and solar wind: the heliospheric dark energy problem Stuart D. Bale

444

Graphite Foam Heat Exchangers for Thermal Management  

Science Conference Proceedings (OSTI)

Improved thermal management is needed to increase the power density of electronic and more effectively cool electronic enclosures that are envisioned in future aircraft, spacecraft and surface ships. Typically, heat exchanger cores must increase in size to more effectively dissipate increased heat loads, this would be impossible in many cases, thus improved heat exchanger cores will be required. In this Phase I investigation, MRi aimed to demonstrate improved thermal management using graphite foam (Gr-foam) core heat exchangers. The proposed design was to combine Gr-foams from POCO with MRi's innovative low temperature, active metal joining process (S-Bond{trademark}) to bond Gr-foam to aluminum, copper and aluminum/SiC composite faceplates. The results were very favorable, so a Phase II SBIR with the MDA was initiated. This had primarily 5 tasks: (1) bonding, (2) thermal modeling, (3) cooling chip scale packages, (4) evaporative cooling techniques and (5) IGBT cold plate development. The bonding tests showed that the ''reflow'' technique with S-Bond{reg_sign}-220 resulted in the best and most consistent bond. Then, thermal modeling was used to design different chip scale packages and IGBT cold plates. These designs were used to fabricate many finned graphite foam heat sinks specifically for two standard type IC packages, the 423 and 478 pin chips. These results demonstrated several advantages with the foam. First, the heat sinks with the foam were lighter than the copper/aluminum sinks used as standards. The sinks for the 423 design made from foam were not as good as the standard sinks. However, the sinks made from foam for the 478 pin chips were better than the standard heat sinks used today. However, this improvement was marginal (in the 10-20% better regime). However, another important note was that the epoxy bonding technique resulted in heat sinks with similar results as that with the S-bond{reg_sign}, slightly worse than the S-bond{reg_sign}, but still better than the standard heat sinks. Next, work with evaporative cooling techniques, such as heat pipes, demonstrated some unique behavior with the foam that is not seen with standard wick materials. This was that as the thickness of the foam increased, the performance got better, where with standard wick materials, as the thickness increases, the performance decreases. This is yet to be completely explained. Last, the designs from the thermal model were used to fabricate a series of cold plates with the graphite foam and compare them to similar designs using high performance folded fin aluminum sinks (considered standard in the industry). It was shown that by corrugating the foam parallel to fluid flow, the pressure drop can be reduced significantly while maintaining the same heat transfer as that in the folded fin heat sink. In fact, the results show that the graphite foam heat sink can utilized 5% the pumping power as that required with the folded fin aluminum heat sink, yet remove the same amount of heat.

Klett, J.W.

2004-06-07T23:59:59.000Z

445

Solar applications of thermal energy storage. Final report  

DOE Green Energy (OSTI)

A technology assessment is presented on solar energy systems which use thermal energy storage. The study includes characterization of the current state-of-the-art of thermal energy storage, an assessment of the energy storage needs of solar energy systems, and the synthesis of this information into preliminary design criteria which would form the basis for detailed designs of thermal energy storage. (MHR)

Lee, C.; Taylor, L.; DeVries, J.; Heibein, S.

1979-01-01T23:59:59.000Z

446

Midtemperature solar systems test facility predictions for thermal performance based on test data: Sun-Heet nontracking solar collector  

DOE Green Energy (OSTI)

Sandia National Laboratories, Albuquerque (SNLA), is currently conducting a program to predict the performance and measure the characteristics of commercially available solar collectors that have the potential for use in industrial process heat and enhanced oil recovery applications. The thermal performance predictions for the Sun-Heet nontracking, line-focusing parabolic trough collector at five cities in the US are presented. (WHK)

Harrison, T.D.

1981-03-01T23:59:59.000Z

447

Biomass processing and solar process heat  

DOE Green Energy (OSTI)

The rate at which biomass can supply useful energy depends on the available integrated solar flux density over the year, the photosynthesis yield, the harvest factor, the energy gain, and the conversion efficiency of biomass into the desired energy carrier. Using these factors, an equation is presented to determine the area required for a given annual demand. In particular, the production of ethanol from biomass is considered, based on recent data from the national alcohol program Proalcool in Brazil. Finally, an estimate is given how solar process heat can improve the yield of alcohol or provide other base material for the chemical industry such as ethylene and synthesis gas from biomass. 9 references, 4 tables.

Sizmann, R.

1985-01-01T23:59:59.000Z

448

Evacuated-Tube Heat-Pipe Solar Collectors Applied to the Recirculation Loop in a Federal Building: Preprint  

DOE Green Energy (OSTI)

This paper describes the design, simulation, construction, and initial performance of a solar water heating system (a 360-tube evacuated-tube heat-pipe solar collector, 54 m2 in gross area, 36 m2 in net absorber area) installed at the top of the hot water recirculation loop in the Social Security Administration's Mid-Atlantic Center in Philadelphia. When solar energy is available, water returning to the hot water storage tank is heated by the solar array. This new approach, in contrast to the more conventional approach of preheating incoming water, is made possible by the thermal diode effect of heat pipes and low heat loss from evacuated-tube solar collectors. The simplicity of this approach and its low installation costs support the deployment of solar energy in existing commercial buildings, especially where the roof is some distance away from the water heating system, which is often in the basement. Initial performance measurements of the system are reported.

Walker, A.; Mahjouri, F.; Stiteler, R.

2004-06-01T23:59:59.000Z

449

South River EMC- Solar Water Heating Rebate Program  

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

South River Electric Membership Corporation (EMC) is providing rebates to encourage their customers to install solar water heating systems. To be eligible for the rebate solar collectors must have...

450

All Green Residential Solar Energy to Heat Absorption Cooling / Heating Systems  

Science Conference Proceedings (OSTI)

An all-green residential solar to heat absorption cooling / heating system system is designed. It describes the components of the system and working principle, and analyze the prospects of the system and academic value. Finally, To Changsha, for example, ... Keywords: solar, ground-source heat pump, absorption, heat tube

Xu Feng

2013-01-01T23:59:59.000Z

451

STATISTICAL ANALYSES ON THERMAL ASPECTS OF SOLAR FLARES  

SciTech Connect

The frequency distribution of flare energies provides a crucial diagnostic to calculate the overall energy residing in flares and to estimate the role of flares in coronal heating. It often takes a power law as its functional form. We have analyzed various variables, including the thermal energies E{sub th} of 1843 flares at their peak time. They were recorded by both Geostationary Operational Environmental Satellites and Reuven Ramaty High-Energy Solar Spectroscopic Imager during the time period from 2002 to 2009 and are classified as flares greater than C 1.0. The relationship between different flare parameters is investigated. It is found that fitting the frequency distribution of E{sub th} to a power law results in an index of -2.38. We also investigate the corrected thermal energy E{sub cth}, which represents the flare total thermal energy including the energy loss in the rising phase. Its corresponding power-law slope is -2.35. Compilation of the frequency distributions of the thermal energies from nanoflares, microflares, and flares in the present work and from other authors shows that power-law indices below -2.0 have covered the range from 10{sup 24} to 10{sup 32} erg. Whether this frequency distribution can provide sufficient energy to coronal heatings in active regions and the quiet Sun is discussed.

Li, Y. P.; Gan, W. Q.; Feng, L., E-mail: wqgan@pmo.ac.cn [Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, 210008 Nanjing (China)

2012-03-10T23:59:59.000Z

452

Description of the University of Texas at Arlington Solar Energy Research Facility photovoltaic/thermal residential system  

DOE Green Energy (OSTI)

The addition of a photovoltaic array to a solar-heated single-family residence at the University of Texas at Arlington permits the study of combined photovoltaic/thermal system operation. Equipment and construction details are presented.

Darkazalli, G.

1979-03-16T23:59:59.000Z

453

Nonimaging concentrators for solar thermal energy. Final report  

DOE Green Energy (OSTI)

A small experimental solar collector test facility has been established on the campus of the University of Chicago. This capability has been used to explore applications of nonimaging optics for solar thermal concentration in three substantially different configurations: (1) a single stage system with moderate concentration on an evacuated absorber (a 5.25X evacuated tube Compound Parabolic Concentrator or CPC), (2) a two stage system with high concentration and a non-evacuated absorber (a 16X Fresnel lens/CPC type mirror) and (3) moderate concentration single stage systems with non-evacuated absorbers for lower temperature (a 3X and a 6.5X CPC). Prototypes of each of these systems have been designed, built and tested. The performance characteristics are presented. In addition a 73 m/sup 2/ experimental array of 3X non-evacuated CPC's has been installed in a school heating system on the Navajo Indian Reservation in New Mexico. The full array has a peak noon time efficiency of approx. 50% at ..delta..T = 50/sup 0/C above ambient and has supplied about half the school's heat load for the past two heating seasons. Several theoretical features of nonimaging concentration have been investigated including their long term energy collecting behavior. The measured performance of the different systems shows clearly that non-tracking concentrators can provide solar thermal energy from moderately high low temperature regimes (> 50/sup 0/C above ambient) up into the mid-temperature region (well above 200/sup 0/C above ambient). The measured efficiency at 220/sup 0/C for the 5.25X CPC was as high or higher than that for any of the commercial tracking systems tested.

Winston, R.

1980-03-21T23:59:59.000Z

454

HEAP: heat energy analysis program. A computer model simulating solar receivers  

DOE Green Energy (OSTI)

Thermal design of solar receivers is commonly accomplished via approximate models, where the receiver is treated as an isothermal box with lumped quantities of heat losses to the surroundings by radiation, conduction and convection. These approximate models, though adequate for preliminary design purposes, are not detailed enough to distinguish between different receiver designs, or to predict transient performance under variable solar flux, ambient temperatures, etc. A computer code has been written for this purpose and is given the name HEAP, an acronym for Heat Energy Analysis Program. HEAP has a basic structure that fits a general heat transfer problem, but with specific features that are custom-made for solar receivers. The code is written in MBASIC computer language. This document explains the detailed methodology followed in solving the heat transfer problem, and includes a program flow chart, an explanation of input and output tables, and an example of the simulation of a cavity-type solar receiver.

Lansing, F.L.

1979-01-15T23:59:59.000Z

455

Experimental Research of an Active Solar Heating System  

E-Print Network (OSTI)

: Solar is an abundant renewable energy, which is used more and more frequently with the emphasis on environment protection, especially in building heating. The different devised methods between an active solar heating system and normal heating system are discussed in this paper. Based on the design, construction, testing and economic analysis of a demonstration project with the solar heating system, this paper discusses how to connect the solar energy collector with the electricity heater and heating system in order to achieve the best state of comfort and energy savings. The real cost of running is calculated and compared with that of other heating methods. The traits and the scope of applications of the solar heating system and the problems in designing, installing and operating are indicated in this paper.

Gao, X.; Li, D.

2006-01-01T23:59:59.000Z

456

High Heating Rate Thermal Desorption for Molecular Surface ...  

High Heating Rate Thermal Desorption for Molecular Surface Sampling Note: The technology described above is an early stage opportunity. Licensing ...

457

Impact of Heat Transfer Media on Materials for Concentrated Solar ...  

Science Conference Proceedings (OSTI)

Presentation Title, Impact of Heat Transfer Media on Materials for Concentrated Solar Power. Author(s), Dane Wilson. On-Site Speaker (Planned), Dane Wilson.

458

Natural convection heat exchangers for solar water heating systems. Technical progress report, August 1, 1995--September 30, 1995  

DOE Green Energy (OSTI)

The goals of this project are: (1) to develop guidelines for the design and use of thermosyphon side-arm heat exchangers in solar domestic water heating systems, and (2) to establish appropriate modeling and testing criteria for evaluating the performance of systems using this type of heat exchanger. The tasks for the project are as follows: (1) Develop a model of the thermal performance of thermosyphon heat exchangers in solar water heating applications. A test protocol will be developed which minimizes the number of tests required to adequately account for mixed convection effects. The TRNSYS component model will be fully integrated in a system component model and will use data acquired with the specified test protocol. (2) Conduct a fundamental study to establish friction and heat transfer correlations for conditions and geometries typical of thermosyphon heat exchangers in solar systems. Data will be obtained as a function of a buoyancy parameter based on Grashof and Reynolds numbers. The experimental domain will encompass the ranges expected in solar water heating systems.

Davidson, J.H.

1998-06-01T23:59:59.000Z

459

City of Dubuque - Solar Thermal Licensing Requirement | Open...  

Open Energy Info (EERE)

Practitioners (NABCEP) or An installer may complete the Northeast Iowa Community College Solar Thermal Training Installers are also required to obtain a permit before altering or...

460

SOLAR THERMAL CONCENTRATOR APPARATUS, SYSTEM, AND METHOD - Energy ...  

SOLAR THERMAL CONCENTRATOR APPARATUS ... The invention was made with the State of California's support under the California Energy Commission contract No. 5005 ...

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461

Parabolic Trough Solar Thermal Electric Power Plants (Fact Sheet)  

DOE Green Energy (OSTI)

This fact sheet provides an overview of the potential for parabolic trough solar thermal electric power plants, especially in the Southwestern U.S.

Not Available

2006-07-01T23:59:59.000Z

462

Design of a Solar Thermal Powered Cooling System.  

E-Print Network (OSTI)

??Abstract The main objective of the thesis was to design a mechanical structure for a desiccant evaporative cooling, to apply solar thermal powered air conditioning… (more)

Hurri, Olli

2011-01-01T23:59:59.000Z

463

Thermoelectrics Combined with Solar Concentration for Electrical and Thermal Cogeneration.  

E-Print Network (OSTI)

??A solar tracker and concentrator was designed and assembled for the purpose of cogeneration of thermal power and electrical power using thermoelectric technology. A BiTe… (more)

Jackson, Philip Robert

2012-01-01T23:59:59.000Z

464

Rapid Solar-Thermal Conversion of Biomass to Syngas - Energy ...  

Production of synthesis gas or hydrogen by gasification or pyrolysis of biological feedstocks using solar-thermal energy. The invention provides processes that ...

465

Table 10.7 Solar Thermal Collector Shipments by Market ...  

U.S. Energy Information Administration (EIA)

8 Medium-temperature collectors are solar thermal ... Special collectors are evacuated tube ... data are for the industrial sector and independent pow ...

466

Solar heating system final design package  

DOE Green Energy (OSTI)

Contemporary Systems has taken its Series V Solar Heating System and developed it to a degree acceptable by local codes and regulatory agencies. The system is composed of the Series V warm air collector, the LCU-110 logic control unit and the USU-A universal switching and transport unit. The collector was originally conceived and designed as an integrated roof/wall system and provides a dual function in the structure. The collector serves both as a solar energy conversion system and as a structural weather resistant skin. The collector can be fabricated in any length from 12 to 24 feet. This provides maximum flexibility in design and installation. The LCU-110 control unit provides totally automatic control over the operation of the system. It receives input data from sensor probes in collectors, storage and living space. The logic is designed so as to make maximum use of solar energy and minimize use of conventional energy. The USU-A transport and switching unit is a high-efficiency air-handling system equipped with gear motor valves that respond to outputs from the control system. The fan unit is designed for maximum durability and efficiency in operation, and has permanently lubricated ball bearings and excellent air-handling efficiency.

Not Available

1979-05-01T23:59:59.000Z

467

SOLAR ENERGY PROGRAM: CHAPTER FROM THE ENERGY AND ENVIRONMENT ANNUAL REPORT 1979  

E-Print Network (OSTI)

Particle Suspensions for Solar Energy Collection A.Sensible Heat Storage for a Solar Thermal Power Plant T.and A. Pfeiffhofer • . Solar Heated Gas Turbine Process

Authors, Various

2010-01-01T23:59:59.000Z

468

The Added Economic and Environmental Value of Solar Thermal Systems...  

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

thermal collection and storage systems and CHP systems can be complex, depending on the tariff structure, load profile, etc. In order to examine the impact of solar thermal and...

469

Maricopa Assn. of Governments - PV and Solar Domestic Water Heating  

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

Maricopa Assn. of Governments - PV and Solar Domestic Water Heating Maricopa Assn. of Governments - PV and Solar Domestic Water Heating Permitting Standards Maricopa Assn. of Governments - PV and Solar Domestic Water Heating Permitting Standards < Back Eligibility Commercial Construction Installer/Contractor Residential Savings Category Solar Buying & Making Electricity Heating & Cooling Water Heating Program Info State Arizona Program Type Solar/Wind Permitting Standards Provider Maricopa Association of Governments In an effort to promote uniformity, the Maricopa Association of Governments (MAG) approved standard procedures for securing necessary electrical/building permits for residential (single-family) and commercial PV systems. These procedures are a part of the MAG Building Code Standards. The standards address requirements for the solar installation, plans,

470

The turbulent cascade and proton heating in the solar wind during solar minimum  

Science Conference Proceedings (OSTI)

Solar wind measurements at 1 AU during the recent solar minimum and previous studies of solar maximum provide an opportunity to study the effects of the changing solar cycle on in situ heating. Our interest is to compare the levels of activity associated with turbulence and proton heating. Large-scale shears in the flow caused by transient activity are a source that drives turbulence that heats the solar wind, but as the solar cycle progresses the dynamics that drive the turbulence and heat the medium are likely to change. The application of third-moment theory to Advanced Composition Explorer (ACE) data gives the turbulent energy cascade rate which is not seen to vary with the solar cycle. Likewise, an empirical heating rate shows no significan changes in proton heating over the cycle.

Coburn, Jesse T.; Smith, Charles W.; Vasquez, Bernard J. [Physics Department and Space Science Center, Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, Durham, New Hampshire (United States); Stawarz, Joshua E. [Department of Astrophysical and Planetary Sciences, University of Colorado at Boulder, Boulder, Colorado (United States); Forman, Miriam A. [Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York (United States)

2013-06-13T23:59:59.000Z

471

Maryland Solar Decathlon 2011 Construction Drawings  

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

SOLENDOID VALVE FLOAT SWITCH FAN SYMBOLS DESCRIPTION MARK DW DISHWASHER ET EVACUATED SOLAR TUBES F FAUCET HXEST HEAT EXCHANGER FOR EXCESS SOLAR THERMAL HP HEAT PUMP LDW LIQUID...

472

Review and summary of Solar Thermal Conversion Program planning assistance  

DOE Green Energy (OSTI)

The Solar Thermal Conversion Program comprises a major part of the national solar energy program which must be continuously reviewed and modified where necessary. Modifications are typically required to reflect technical achievements and uncertainties which arise from within the program or from other technical programs, changes in budgets available for supporting the program as well as internal program funding priorities, changing goals such as through acceleration or stretch-out of the program schedule, significant organizational changes involving responsible governmental agencies, the introduction of new project management support contractors, and required budget or schedule changes occurring within individual projects that make up the Solar Thermal Conversion Program. The Aerospace Corporation has provided data to assist in planning, review, coordination, and documentation of the overall Solar Thermal Conversion Program. The Solar Thermal Conversion Program Plan is described in detail. Sections 2.0 through 5.0 cover the discussion and detail planning covering the objectives, justification, basic and alternative plans, budgets, and schedules for the Solar Thermal sub-unit portion of the Solar