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Note: This page contains sample records for the topic "united solar systems" from the National Library of EnergyBeta (NLEBeta).
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1

United Solar Systems | Open Energy Information  

Open Energy Info (EERE)

United Solar Systems Place: Troy, MI References: United Solar Systems1 Information About Partnership with NREL Partnership with NREL Yes Partnership Type "CRADA" is not in the...

2

United Solar Systems Corp USSC aka Bekaert ECD Solar Systems LLC | Open  

Open Energy Info (EERE)

Solar Systems Corp USSC aka Bekaert ECD Solar Systems LLC Solar Systems Corp USSC aka Bekaert ECD Solar Systems LLC Jump to: navigation, search Name United Solar Systems Corp (USSC) (aka Bekaert ECD Solar Systems LLC) Place Middletown Springs, Vermont Zip VT 05757 Product Originally a JV between ECD and Bekaert to manufacture, market and sell photovoltaic products and systems References United Solar Systems Corp (USSC) (aka Bekaert ECD Solar Systems LLC)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. United Solar Systems Corp (USSC) (aka Bekaert ECD Solar Systems LLC) is a company located in Middletown Springs, Vermont . References ↑ "[ United Solar Systems Corp (USSC) (aka Bekaert ECD Solar Systems LLC)]"

3

STATEMENT OF CONSIDERATIONS REQUEST BY UNITED SOLAR SYSTEMS CORPORATION FOR AN  

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

U.S. AND FOREIGN RIGHTS UNDER U.S. AND FOREIGN RIGHTS UNDER SUBCONTRACT NO. NREL-ZAN-3-13318 UNDER DOE PRIME CONTRACT NO. DE-AC36-83CH10093, WAIVER NO. W(A)-94-020, CH0836. The attached petition by United Solar Systems Corporation (hereafter United Solar) is for an advance waiver of patent rights under Subcontract No. NREL-ZAN-3-13318, under DOE Contract No. DE- AC36-83CH10093. United Solar requests that the Department of Energy grant an advance waiver for the domestic and foreign rights to inventions developed in the performance of the above identified subcontract without limitation as to field of use and that these rights will be retained by United Solar subject to the standard Advance Waiver Patent Rights Clause with the enclosed U.S. Competitiveness paragraph as previously agreed to. Additionally,

4

Integrated solar heating unit  

SciTech Connect (OSTI)

This patent describes an integral solar heating unit with an integral solar collector and hot water storage system, the unit comprising: (a) a housing; (b) a flat plate solar collector panel mounted in the housing and having a generally horizontal upper edge and an uninsulated, open back surface; (c) a cylindrical hot water tank operatively connected to the solar collector panel and mounted in the housing generally parallel to and adjacent to the upper edge; (d) the housing comprising a hood around the tank a pair of side skirts extending down at the sides of the panel. The hood and side skirts terminate at lower edges which together substantially define a plane such that upon placing the heating unit on a generally planar surface, the housing substantially encapsulates the collector panel and hot water tank in a substantially enclosed air space; (e) the collector including longitudinally extended U-shaped collector tubes and a glazed window to pass radiation through to the collector tubes, and a first cold water manifold connected to the tubes for delivering fresh water thereto and a second hot water manifold connected to the tubes to remove heated water therefrom. The manifolds are adjacent and at least somewhat above and in direct thermal contact with the tank; and, (f) the skirts and hood lapping around the collector panel, exposing only the glazed window, such that everything else in the heating unit is enclosed by the housing such that heat emanating from the uninsulated, open back face of the collector and tank is captured and retained by the housing to warm the manifolds.

Larkin, W.J.

1987-01-20T23:59:59.000Z

5

STATEMENT OF CONSIDERATIONS REQUEST BY UNITED SOLAR SYSTEMS CORP. FOR AN ADVANCE WAIVER  

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

CORP. FOR AN ADVANCE WAIVER CORP. FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN PATENT RIGHTS UNDER DOE PRIME CONTRACT NO. DE-AC36-83CH10093; SUBCONTRACT NREL-ZAK-8-17619- 09; W(A)-99-014; CH-1007 The Petitioner, United Solar Systems Corp. (hereinafter "United Solar"), has requested a waiver of domestic and foreign patent rights for all subject inventions arising from its participation under the above referenced subcontract entitled "High-Efficiency Triple-Junction Amorphous Silicon Alloy Photovoltaic Technology". This subcontract is directed to research, development, and manufacturing of amorphous thin film solar cell products. In Particular, this subcontract is directed to the research and development of high performance two-terminal multi gap, multi junction amorphous silicon alloy modules, and to

6

STATEMENT OF CONSIDERATIONS REQUEST BY UNITED SOLAR SYSTEMS CORPORATION FOR AN  

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

DOMESTIC AND FOREIGN PATENT RIGHTS DOMESTIC AND FOREIGN PATENT RIGHTS UNDER NREL SUBCONTRACT NO: ZAF-5-14142-01 UNDER DOE CONTRACT NO: DE-AC36-83CH10093; W(A)-95-004; CH-0848 The Petitioner, United Solar Systems Corporation, has requested a waiver of domestic and foreign patent rights for all subject inventions arising from the above referenced subcontract entitled "Thin Film Amorphous Silicon Alloy Research Partnership." The scope of work to be performed under this subcontract is to develop high performance two-terminal multibandgap, multijunction amorphous silicon alloy modules with low manufacturing cost and high reliability. The principle objectives are to conduct research on materials which enhance performance of thin film amorphous silicon alloy modules, to improve module reliability by qualifying the integrity of the metal/dielectric/semiconductor adhesion, and

7

Solar system  

SciTech Connect (OSTI)

An improved solar heat collecting system is described comprising: a collecting means having upper and lower end caps; means for supporting the collecting means in a position generally perpendicular to ambit solar radiation and to permit periodic adjustment thereof; the support means including a base, a first support bar pivotally secured to the base and extending parallel to the ground, and a first support member extending perpendicular from the first support bar to the lower end cap. The support means also includes a second support bar pivotally secured to the base and extending generally parallel to the first support bar, a support leg having a lower portion that extends perpendicularly from the second support bar, an intermediate leg portion slidingly mounted on the lower leg portion and an upper leg portion pivotally secured to the intermediate leg portion, and a second support member extending perpendicularly from the upper leg portion to the upper end cap; lens means disposed above the collecting means for concentrating solar radiation on the collecting means; a pair of reflector means mounted below and on opposite sides of the radiation shadow of the lens means for concentrating solar radiation on the collecting means; mounting means for mounting the lens means and the reflector means. The mounting means includes first and second bracket means rotatively mounted respectively to the first and second support members. A pair of radially extending U-shaped reflector mounts have opposite ends secured to respective bracket means, and a pair of radially extending lens supports secured to respective bracket means; and means for rotating the mounting means and associated lens mean and reflector means to track the source of solar radiation whereby an improved, highly efficient solar heat collecting system is provided.

Gregory, S.T.

1987-02-24T23:59:59.000Z

8

S. Guha, J. Yang, A. Banerjee, K. Hoffman, S. Sugiyama, and J. Call United Solar Systems Corp., Troy, Michigan 48084 USA  

E-Print Network [OSTI]

Conversion Devices, Inc., Troy, Michigan 48084 USA spectral-splitting, triple-junction a-S alloy solar cell been achieved using a spectral-splitting, triple-junction cell technology incorporating i) high qualityS. Guha, J. Yang, A. Banerjee, K. Hoffman, S. Sugiyama, and J. Call United Solar Systems Corp

Deng, Xunming

9

Solar repowering system for Texas Electric Service Company Permian Basin Steam Electric Station Unit No. 5. Final report, executive summary  

SciTech Connect (OSTI)

The conceptual design and economic assessment of a sodium-cooled, solar central receiver repowering system for Texas Electric Service Company's Permian Basin Steam Electric Plant Unit No. 5 are described. As expected, the economic assessment of the specific concept for that site indicates that the cost of energy is greater than that resulting from the burning of natural gas alone in the existing plant (principally as a result of the current cost of heliostats and the scheduled retirement date of Unit No. 5), Favorable economics for similar types of plants can be projected for the future. The annual fuel savings are equivalent to 218,500 barrels of crude oil, with a total dollar value of $21.5 M and $93.6 M for a 7-year life and a 25-year life, respectively. However, it has also been found, from separate studies, that favorable interpretations of the Fuel Use Act and an improved regulatory climate will be necessary for this economic viability to be reached. In particular, a subsidized program to reduce the cost of heliostats to less than $100/m/sup 2/ will be needed. All sodium components, except the receiver, are available on the basis of similar-sized or larger components that have been designed, fabricated, tested and operated in power plants for hundred of thousands of hours. Liquid sodium has been demonstrated for use as a stable, safe, and easily contained heat transfer fluid up to temperature exceeding those required for modern steam plants. (WHK)

Not Available

1980-07-15T23:59:59.000Z

10

Solar and standby fireplace system  

SciTech Connect (OSTI)

A home heating system for supplying heated air and water is made up of a solar energy heating unit. The solar energy heating unit is provided with a channel in an insulating layer mounted within the housing, which channel directs heated air to the interior of the home. The interior of the housing also is provided with a plurality of water pipes for heating water. The water is preferably supplied from an indoor swimming pool and redirected back to the indoor swimming pool after being heated. A fireplace is also provided in conjunction with the solar energy heating unit, which fireplace acts as a back-up unit when the solar unit is not operable due to insufficient sunlight. The fireplace contains a conventional hearth and flue and is provided with a plurality of air conduits and water pipes within the flue so that the air and water may be heated by the fire in the hearth.

Binner, T.S.

1983-08-30T23:59:59.000Z

11

Solar electric systems  

SciTech Connect (OSTI)

Electricity from solar sources is the subject. The state-of-the-art of photovoltaics, wind energy and solar thermal electric systems is presented and also a broad range of solar energy activities throughout the Arab world is covered. Contents, abridged: Solar radiation fundamentals. Basic theory solar cells. Solar thermal power plants. Solar energy activities at the scientific research council in Iraq. Solar energy program at Kuwait Institute for Scientific Research. Prospects of solar energy for Egypt. Non-conventional energy in Syria. Wind and solar energies in Sudan. Index.

Warfield, G.

1984-01-01T23:59:59.000Z

12

Small Solar Electric Systems | Department of Energy  

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

Small Solar Electric Systems Small Solar Electric Systems Small Solar Electric Systems July 15, 2012 - 4:11pm Addthis A small solar electric or photovoltaic system can be a reliable and pollution-free producer of electricity for your home or office. What are the key facts? Because PV technologies use both direct and scattered sunlight to create electricity, the solar resource across the United States is ample for home solar electric systems. Solar cells-the basic building blocks of a PV system -- consist of semiconductor materials. A typical home solar electric, or PV, system consists solar cells, modules or panels (which consist of solar cells), arrays (which consist of modules), and balance-of-system parts. A small solar electric or photovoltaic (PV) system can be a reliable and pollution-free producer of electricity for your home or office. Small PV

13

Small Solar Electric Systems | Department of Energy  

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

Small Solar Electric Systems Small Solar Electric Systems Small Solar Electric Systems July 15, 2012 - 4:11pm Addthis A small solar electric or photovoltaic system can be a reliable and pollution-free producer of electricity for your home or office. What are the key facts? Because PV technologies use both direct and scattered sunlight to create electricity, the solar resource across the United States is ample for home solar electric systems. Solar cells-the basic building blocks of a PV system -- consist of semiconductor materials. A typical home solar electric, or PV, system consists solar cells, modules or panels (which consist of solar cells), arrays (which consist of modules), and balance-of-system parts. A small solar electric or photovoltaic (PV) system can be a reliable and pollution-free producer of electricity for your home or office. Small PV

14

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

15

Excise Tax Exemption for Solar- or Wind-Powered Systems  

Broader source: Energy.gov [DOE]

Massachusetts law exempts any "solar or wind powered climatic control unit and any solar or wind powered water heating unit or any other type unit or system powered thereby," that qualifies for the...

16

Solar-powered cooling system  

DOE Patents [OSTI]

A solar-powered adsorption-desorption refrigeration and air conditioning system uses nanostructural materials made of high specific surface area adsorption aerogel as the adsorptive media. Refrigerant molecules are adsorbed on the high surface area of the nanostructural material. A circulation system circulates refrigerant from the nanostructural material to a cooling unit.

Farmer, Joseph C

2013-12-24T23:59:59.000Z

17

Solar ADEPT: Efficient Solar Energy Systems  

SciTech Connect (OSTI)

Solar ADEPT Project: The 7 projects that make up ARPA-E's Solar ADEPT program, short for 'Solar Agile Delivery of Electrical Power Technology,' aim to improve the performance of photovoltaic (PV) solar energy systems, which convert the sun's rays into electricity. Solar ADEPT projects are integrating advanced electrical components into PV systems to make the process of converting solar energy to electricity more efficient.

None

2011-01-01T23:59:59.000Z

18

Solar powered desalination system  

E-Print Network [OSTI]

Production Requirements Energy Source Natural Gas Nuclear SolarSolar Energy Calculator using Google Maps 23 Table 1.24: PV System Power ProductionSolar Desalination Systems…………………………………………………34 Table 1.20: Energy Requirements of Desalination Methods…………………………….35 Table 1.21: PEC Hydrogen Production………………………………………………….

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

19

Solar in Remote Applications in the United States | Department...  

Energy Savers [EERE]

in Remote Applications in the United States Solar in Remote Applications in the United States Renewable energy and distributed generation resources have a critical role to play in...

20

Solar Energy System Exemption  

Broader source: Energy.gov [DOE]

In Louisiana, any equipment attached to an owner-occupied residential building or swimming pool as part of a solar energy system is considered personal property that is exempt from ad valorem...

Note: This page contains sample records for the topic "united solar systems" 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

Solar system fault detection  

DOE Patents [OSTI]

A fault detecting apparatus and method are provided for use with an active solar system. The apparatus provides an indication as to whether one or more predetermined faults have occurred in the solar system. The apparatus includes a plurality of sensors, each sensor being used in determining whether a predetermined condition is present. The outputs of the sensors are combined in a pre-established manner in accordance with the kind of predetermined faults to be detected. Indicators communicate with the outputs generated by combining the sensor outputs to give the user of the solar system and the apparatus an indication as to whether a predetermined fault has occurred. Upon detection and indication of any predetermined fault, the user can take appropriate corrective action so that the overall reliability and efficiency of the active solar system are increased.

Farrington, Robert B. (Wheatridge, CO); Pruett, Jr., James C. (Lakewood, CO)

1986-01-01T23:59:59.000Z

22

Solar system fault detection  

DOE Patents [OSTI]

A fault detecting apparatus and method are provided for use with an active solar system. The apparatus provides an indication as to whether one or more predetermined faults have occurred in the solar system. The apparatus includes a plurality of sensors, each sensor being used in determining whether a predetermined condition is present. The outputs of the sensors are combined in a pre-established manner in accordance with the kind of predetermined faults to be detected. Indicators communicate with the outputs generated by combining the sensor outputs to give the user of the solar system and the apparatus an indication as to whether a predetermined fault has occurred. Upon detection and indication of any predetermined fault, the user can take appropriate corrective action so that the overall reliability and efficiency of the active solar system are increased.

Farrington, R.B.; Pruett, J.C. Jr.

1984-05-14T23:59:59.000Z

23

[The Story of the Solar System] The Solar System -II  

E-Print Network [OSTI]

-TauriPhase SolarNebula #12;Giant Molecular Cloud o About 50-100 light years across o more than a million times[The Story of the Solar System] The Solar System - II Alexei Gilchrist #12;Some resources o Section of the Solar System, M Garlick, (Cambridge Uni. Press, 2002) #12;Timeline Today Big Bang Earliest Fossils Birth

Wardle, Mark

24

Vaillant Solar Systems | Open Energy Information  

Open Energy Info (EERE)

Vaillant Solar Systems Jump to: navigation, search Name: Vaillant Solar Systems Place: Solana Beach, California Zip: 92075 Sector: Solar Product: California-based solar company...

25

Siting Your Solar Water Heating System | Department of Energy  

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

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

26

Siting Your Solar Water Heating System | Department of Energy  

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

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

27

Utilizing Solar Thermal Energy in Textile Processing Units  

Science Journals Connector (OSTI)

This chapter presents the prospects of solar thermal energy utilization in the textile processing units in Pakistan. Various solar thermal technologies suitable for thermal energy production and their application...

Asad Mahmood; Khanji Harijan

2012-01-01T23:59:59.000Z

28

Solar Leasing for Residential Photovoltaic Systems  

Broader source: Energy.gov [DOE]

This publication examines the solar lease option for residential PV systems and describes two solar lease programs already in place. As a result of the $2,000 cap on the residential ITC being lifted in 2009, the expansion of the solar lease model across the United States may be slower than anticipated. The lease model, though, still offers homeowners some distinct advantages. This publication helps homeowners revisit the comparison between the solar lease and home-equity financing in light of the change to the ITC.

29

Solar powered desalination system  

E-Print Network [OSTI]

As a clean energy source, solar power is inexhaustible,renewables for energy sources, including solar power. Also,Requirements Energy Source Natural Gas Nuclear Solar Wind

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

30

Rand Solar Energy Systems | Open Energy Information  

Open Energy Info (EERE)

Rand Solar Energy Systems Jump to: navigation, search Name: Rand Solar Energy Systems Place: Petach Tikva, Israel Zip: 49130 Sector: Solar Product: Israel-based manufacturer and...

31

The Solar Prospector (United States) | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » The Solar Prospector (United States) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: The Solar Prospector (United States) Focus Area: Solar Topics: Opportunity Assessment & Screening Website: maps.nrel.gov/prospector Equivalent URI: cleanenergysolutions.org/content/solar-prospector-united-states,http:/ Language: English Policies: Deployment Programs DeploymentPrograms: Technical Assistance The Solar Prospector is a mapping tool designed and developed for the Concentrating Solar Power (CSP) industry. This tool is designed to help CSP

32

Integrated Solar Thermochemical Reaction System  

Broader source: Energy.gov [DOE]

This fact sheet describes an integrated solar thermochemical reaction system project awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D award program. The team, led by the Pacific Northwest National Laboratory, is working to develop and demonstrate a high-performance solar thermochemical reaction system in an end-to-end demonstration that produces electricity. A highly efficient solar thermochemical reaction system would allow for 24-hour operation without the need for storage technology, and reductions in total system costs while providing a relatively low-risk deployment option for CSP systems.

33

Extending Human Presence into the Solar System  

E-Print Network [OSTI]

Extending Human Presence into the Solar System An Independent Study for The Planetary Society the development of additional assets, including an uprated CEV capable of extended missions of many months lengthy hiatus in the ability of the United States to conduct crewed spaceflight operations. To this end

Rathbun, Julie A.

34

Solar Energy Control System Design.  

E-Print Network [OSTI]

?? This thesis covers design, simulation and implementation of a solar energy control system for an on grid energy storage device. The design covers several… (more)

Yang, Sun

2013-01-01T23:59:59.000Z

35

The Parameter Optimization and Analysis of a Multi-Stage Tower Type of Solar Desalination Unit  

Science Journals Connector (OSTI)

After the analysis of the multi-stage tower type of solar desalination unit[1], the unit is optimized...

Chen Ziqian; He Kaiyan; Zheng Hongfei…

2009-01-01T23:59:59.000Z

36

Chapter 8 - Solar Desalination Systems  

Science Journals Connector (OSTI)

Abstract Chapter 8 deals with solar desalination systems. The chapter initially analyzes the relation of water and energy as well as water demand and consumption and the relation of energy and desalination. Subsequently, the various desalination processes are described starting with a general exergy analysis of desalination systems and thermal desalination processes. This is followed by a review of the direct and indirect desalination systems. The typical direct system is the solar still and the analysis includes classification of solar distillation systems, performance of solar stills, and general comments on solar distillation. Indirect collection systems presented include the multistage flash process, the multiple-effect boiling process, the vapor compression process, reverse osmosis, and electrodialysis. These are described technologically and the system design equations are given. The chapter includes also a review of the renewable energy desalination systems and examines solar thermal energy, solar ponds, solar photovoltaic, wind power, hybrid solar PV–wind power, and geothermal energy. Finally, the parameters to consider in the selection of a desalination process are examined.

Soteris A. Kalogirou

2014-01-01T23:59:59.000Z

37

Solar Heating System Estimating  

Science Journals Connector (OSTI)

The Canadian Federal Government has embarked on a S$225,000,000.00 programme to help develop solar energy in Canada. The programme is being handled by the ... of the federal government who will be installing solar

Don Hampton

1983-01-01T23:59:59.000Z

38

Overview of the United Nations Environment Programme's Solar and Wind  

Open Energy Info (EERE)

Overview of the United Nations Environment Programme's Solar and Wind Overview of the United Nations Environment Programme's Solar and Wind Energy Resource Assessment (SWERA) Project Dataset Summary Description (Abstract): Project overview describing rationale, products and partners of the UNEP/GEF Solar and Wind Energy Resource Assessment project. (Purpose): Project overview for presentation at the Asia regional meeting at the Second International Conference on Renewable Energy Technology for Rural Development (RETRUD-03) in Katmandu on 12-14 October 2003 Source NREL Date Released October 14th, 2003 (11 years ago) Date Updated October 20th, 2007 (7 years ago) Keywords GEF solar SWERA UNEP United Nations wind Data application/zip icon Download Presentation (zip, 5 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage

39

Solar energy system  

SciTech Connect (OSTI)

A solar energy system employing high-pressure high velocity air as the primary heat transfer medium comprises a plurality of collector panels connected in parallel with each other in a closed loop that also includes an air compressor and a heat exchanger that is connected to external energy utilization means. A self-actuating temperature-responsive air flow control valve associated with each collector panel cuts off the air flow through the panel whenever the air temperature in the panel is below a minimum threshold value and allows an increasing air flow through the panel up to a maximum as the temperature increases, maintaining the output temperature from the collector panel essentially constant for widely varying conditions of solar radiation. An air feedback circuit connects the outlet of the compressor to its inlet, bypassing the collector panels, and includes a pressure-responsive feedback control valve to assure a relatively constant total flow through the compressor. In some of the system embodiments, a thermal store is incorporated in the closed loop. A preferred construction employs a thermal feedback comprising an air/air heat exchanger connected from the outlet of the compressor to its inlet. The preferred collector panel construction utilizes a metal foil radiation absorber/air heater mounted in housing having an insulated base with the front of the housing closed by a cover formed of a thin sheet of glazing material affording a multiplicity of corrugations of generally sinusoidal configuration extending longitudinally of the housing and a manifold at each end of the housing.

Anthony, M.L.

1981-06-16T23:59:59.000Z

40

HOUSEHOLD SOLAR POWER SYSTEM.  

E-Print Network [OSTI]

?? Photovoltaic power has become one of the most popular research area in new energy field. In this report, the case of household solar power… (more)

Jiang, He

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "united solar systems" 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

SOLAR IRRADIANCE FORECASTING FOR THE MANAGEMENT OF SOLAR ENERGY SYSTEMS  

E-Print Network [OSTI]

SOLAR IRRADIANCE FORECASTING FOR THE MANAGEMENT OF SOLAR ENERGY SYSTEMS Detlev Heinemann Oldenburg.girodo@uni-oldenburg.de ABSTRACT Solar energy is expected to contribute major shares of the future global energy supply. Due to its and solar energy conversion processes has to account for this behaviour in respective operating strategies

Heinemann, Detlev

42

Solar Power Systems Web Monitoring  

E-Print Network [OSTI]

All over the world the peak demand load is increasing and the load factor is decreasing year-by-year. The fossil fuel is considered insufficient thus solar energy systems are becoming more and more useful, not only in terms of installation but monitoring of these systems is very crucial. Monitoring becomes very important when there are a large number of solar panels. Monitoring would allow early detection if the output falls below required level or one of the solar panel out of 1000 goes down. In this study the target is to monitor and control a developed solar panel by using available internet foundation. This web-enabled software will provide more flexibility over the system such as transmitting data from panel to the host computer and disseminating information to relevant stake holders barring any geographical barrier. The software would be built around web server with dynamic HTML and JAVA, this paper presents the preliminary design of the proposed system.

Kumar, Bimal Aklesh

2011-01-01T23:59:59.000Z

43

Next generation solar bimodal systems  

SciTech Connect (OSTI)

One of the principal advantages of a solar thermal propulsion system as compared to a conventional chemical propulsion one is high specific impulse which is proportional to the square root of a propellant temperature. Obviously, next generation solar propulsion and bimodal systems must take advantage of high and ultra-high temperatures. This requires use of an appropriate energy conversion system capable to take advantage of high temperature potentially achievable in a solar receiver. High efficiency and power density of a high temperature thermionic converter open new perspectives in the development of advanced bimodal power systems having performance significantly higher than that achievable by the state-of-the-art technology. The paper presents an innovative concept of a cascaded solar bimodal power system with a high temperature Cs-Ba thermionic converter. The paper shows that the use of high temperature Knudsen cesium-barium thermionic converter in a solar bimodal system allows to eliminate thermal insulation sleeve, generate electrical power in the propulsion mode, and precise control thermal state of the solar receiver. In the Cs-Ba thermionic converter an electron instability and high amplitude current oscillations develop. These effects can be used to obtain alternate current power directly in the converter. Possibility and potential advantage of such a generator are discussed.

Babanin, V.I.; Ender, A.Y.; Kolyshkin, I.N.; Kuznetsov, V.I.; Sitnov, V.I. [Ioffe Physico-Technical Institute, St. Petersburg (Russian Federation); Paramonov, D.V. [Westinghouse Science and Technology Center, Pittsburgh, PA (United States)

1997-12-31T23:59:59.000Z

44

Combined Solar and Wind Energy Systems  

Science Journals Connector (OSTI)

In this paper we present the new concept of combined solar and wind energy systems for buildings applications. Photovoltaics (PV) and small wind turbines (WTs) can be install on buildings in case of sufficient wind potential providing the building with electricity. PVs can be combined with thermal collectors to form the hybrid photovoltaic/thermal (PV/T) systems. The PVs (or the PV/Ts) and WT subsystems can supplement each other to cover building electrical load. In case of using PV/T collectors the surplus of electricity if not used or stored in batteries can increase the temperature of the thermal storage tank of the solar thermal unit. The description of the experimental set?up of the suggested PV/T/WT system and experimental results are presented. In PV/T/WT systems the output from the solar part depends on the sunshine time and the output of the wind turbine part depends on the wind speed and is obtained any time of day or night. The use of the three subsystems can cover a great part of building energy load contributing to conventional energy saving and environment protection. The PV/T/WT systems are considered suitable in rural and remote areas with electricity supply from stand?alone units or mini?grid connection. PV/T/WT systems can also be used in typical grid connected applications.

Y. Tripanagnostopoulos; M. Souliotis; Th. Makris

2010-01-01T23:59:59.000Z

45

Roadmap for Solar System Research November 2012  

E-Print Network [OSTI]

Roadmap for Solar System Research November 2012 Prepared by the Solar System Advisory Panel on behalf of the UK Community of Solar System Scientists for the STFC Programmatic Review Panel membership. The Solar System Advisory Panel (SSAP) invited its community to a Town Meeting in London on 10th September

Crowther, Paul

46

Laser Texturing for Solar Thermal Systems  

Science Journals Connector (OSTI)

High solar absorptance and low thermal emittance is desired for absorber surface in solar thermal systems. Molybdenum surface was textured by pulsed fiber laser and...

Shah, Ankit; Gupta, Mool

47

Sandia National Laboratories: Concentrating Solar Power Systems  

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

Power Systems Air Force Research Laboratory Testing On November 2, 2012, in Concentrating Solar Power, Facilities, National Solar Thermal Test Facility, News, News & Events,...

48

Solar energy power generation system  

SciTech Connect (OSTI)

A solar energy power generation system is described which consists of: (a) means for collecting and concentrating solar energy; (b) heat storage means; (c) Stirling engine means for producing power; (d) first heat transfer means for receiving the concentrated solar energy and for transferring heat to the heat storage means; and (e) second heat transfer means for controllably transferring heat from the storage means to the Stirling engine means and including a discharge heat pipe means for transferring heat to the Stirling engine means and further including means for inserting and withdrawing the discharge heat pipe means into and out of the heat storage means.

Nilsson, J.E.; Cochran, C.D.

1986-05-06T23:59:59.000Z

49

Solar Systems | Open Energy Information  

Open Energy Info (EERE)

Name Solar Systems Name Solar Systems Address 45 Grosvenor Street Place Abbotsford, Australia Sector Solar Product Solar concentrators Phone number +61 3 9413 8000 Website http://www.solarsystems.com.au Coordinates -37.808702°, 145.006698° 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":-37.808702,"lon":145.006698,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

50

Springerville Generating Station Solar System Solar Power Plant | Open  

Open Energy Info (EERE)

Springerville Generating Station Solar System Solar Power Plant Springerville Generating Station Solar System Solar Power Plant Jump to: navigation, search Name Springerville Generating Station Solar System Solar Power Plant Facility Springerville Generating Station Solar System Sector Solar Facility Type Photovoltaic Developer Tucson Electric Power Location Springerville, Arizona Coordinates 34.1333799°, -109.2859196° 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":34.1333799,"lon":-109.2859196,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

51

Future exploration of the outer solar system  

Science Journals Connector (OSTI)

......the convection cell. (NASA/JPL-Caltech...found in the solar system, and...with relevant technology development...choice, but new technologies combining solar and chemical...crucial, with solar panel technology sufficient for......

Leigh Fletcher

2013-04-01T23:59:59.000Z

52

Roadmap for Solar System Research October 2012  

E-Print Network [OSTI]

Roadmap for Solar System Research October 2012 DRAFT Prepared by the Solar System Advisory Panel on behalf of the UK Community of Solar and Planetary Scientists for the STFC Programmatic Review Panel and processes that influence its dynamics. The remit of the Solar System Advisory Panel (SSAP) covers all b

Crowther, Paul

53

Collector Field Maintenance: Distributed Solar Thermal Systems  

Science Journals Connector (OSTI)

This paper reports on recent operation and maintenance experiences with distributed solar thermal systems. Although some information on system-...

E. C. Boes; E. C. Cameron; E. L. Harley

1986-01-01T23:59:59.000Z

54

Passive-solar-retrofit study for the United States Navy  

SciTech Connect (OSTI)

A passive solar retrofit study has been conducted for the United States Navy at the Los Alamos National Laboratory. The purpose of the study was to determine the energy savings obtainable in concrete block buildings from several passive solar heating strategies. A procedure involving the use of test cell data and computer simulation was employed to assess the merits of six retrofit options. The six strategies selected were chosen on the basis of providing a series of options that will deliver increasing energy savings at the cost of correspondingly increased levels of commitment.

Wray, W.O.; Miles, C.R.

1981-01-01T23:59:59.000Z

55

Passive solar in the United States: 1976-1986  

SciTech Connect (OSTI)

A decade of experience in passive solar development in the United States is reviewed. More than 200,000 residential and 15,000 institutional and commercial passive solar buildings have been constructed since 1976. The evolution of the program through its peak in 1980 to the present is described. Methods of performance prediction and evaluation are discussed including analysis methods, design tools, test modules and monitored buildings. Results of the monitoring show excellent performance, generally in agreement with the analysis, for both residences and larger buildings. Passive practice is analyzed and problems are discussed. The current research program is described. Potential savings are estimated.

Balcomb, J D

1987-01-01T23:59:59.000Z

56

Investigation of a Novel Solar Assisted Water Heating System with Enhanced Energy Yield for Buildings  

E-Print Network [OSTI]

simulation and experimental verification. The unique characteristic of such system consists in the integrated loop heat pipe and heat pump unit (LHP-HP), which was proposed to improve solar photovoltaic (PV) generation, capture additional solar heat...

Zhang, X.; Zhao, X.; Xu, J.; Yu, X.

2012-01-01T23:59:59.000Z

57

Japan's Solar Photovoltaic (PV) Market: An Analysis of Residential System Prices (Presentation)  

SciTech Connect (OSTI)

This presentation summarizes market and policy factors influencing residential solar photovoltaic system prices in Japan, and compares these factors to related developments in the United States.

James, T.

2014-03-01T23:59:59.000Z

58

Borrego Solar Systems Inc | Open Energy Information  

Open Energy Info (EERE)

Solar Systems Inc Place: El Cajon, California Zip: 92020 Product: US-based installer of PV systems for commercial and public projects. References: Borrego Solar Systems Inc1 This...

59

Active Solar Heating and Cooling Systems Exemption  

Broader source: Energy.gov [DOE]

Active solar heating and cooling systems may not be assessed at more than the value of a conventional system for property tax purposes. This law applies only to active solar systems and does not...

60

Solimpeks Solar Energy Systems | Open Energy Information  

Open Energy Info (EERE)

Solimpeks Solar Energy Systems Solimpeks Solar Energy Systems Jump to: navigation, search Name Solimpeks Solar Energy Systems Place Karatay - KONYA, Turkey Zip 42300 Sector Solar Product Turkish manufacturer of solar passive modules currently developing combined PV-passive systems for Turkish market. References Solimpeks Solar Energy Systems[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Solimpeks Solar Energy Systems is a company located in Karatay - KONYA, Turkey . References ↑ "Solimpeks Solar Energy Systems" Retrieved from "http://en.openei.org/w/index.php?title=Solimpeks_Solar_Energy_Systems&oldid=351486" Categories: Clean Energy Organizations Companies Organizations

Note: This page contains sample records for the topic "united solar systems" 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

Solstice Solar Systems LLC | Open Energy Information  

Open Energy Info (EERE)

Solstice Solar Systems LLC Solstice Solar Systems LLC Jump to: navigation, search Name Solstice Solar Systems LLC Place Campbell, California Zip 95008-6906 Sector Solar Product US-based manufacturer of PV inverters and wires to connect solar panels. References Solstice Solar Systems LLC[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Solstice Solar Systems LLC is a company located in Campbell, California . References ↑ "Solstice Solar Systems LLC" Retrieved from "http://en.openei.org/w/index.php?title=Solstice_Solar_Systems_LLC&oldid=351510" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version

62

Solar powered desalination system  

E-Print Network [OSTI]

17 1.2.4 Reverse Osmosis…………………………………………………19 1.345 Chapter 2: Reverse Osmosis System…………………………………………………….46 2.1 Reverse Osmosis System Set Up…………………………………………….46 2.2

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

63

Solar Thin Films Inc formerly American United Global Inc | Open Energy  

Open Energy Info (EERE)

Films Inc formerly American United Global Inc Films Inc formerly American United Global Inc Jump to: navigation, search Name Solar Thin Films Inc (formerly American United Global Inc) Place New York, New York Zip 10038 Sector Solar Product A US-based solar manufacturing equipment supplier. References Solar Thin Films Inc (formerly American United Global Inc)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Solar Thin Films Inc (formerly American United Global Inc) is a company located in New York, New York . References ↑ "Solar Thin Films Inc (formerly American United Global Inc)" Retrieved from "http://en.openei.org/w/index.php?title=Solar_Thin_Films_Inc_formerly_American_United_Global_Inc&oldid=351338

64

Solar Resource and PV Systems Performance  

E-Print Network [OSTI]

Solar Resource and PV Systems Performance at Selected Test Sites Prepared for the U.S. Department Subtask 11.1 Deliverables 2 and 4: Report on Solar Resource and PV Systems Performance at Selected Test agency thereof. #12;1 Solar Resource and PV Systems Performance at Selected Test Sites Contents 1

65

Access to glacial and subglacial environments in the Solar System by melting probe technology  

Science Journals Connector (OSTI)

The use of power intensive devices such as ice-melting probes in the outer Solar System strongly points to radioactive units for ... traditional space application RHU (Radioactive Heater Unit) technology is based...

Stephan Ulamec; Jens Biele; Oliver Funke…

2007-08-01T23:59:59.000Z

66

Chapter 10 - Solar Thermal Power Systems  

Science Journals Connector (OSTI)

Abstract Chapter 10 deals with solar thermal power systems. Initially, the general design considerations are given followed by the presentation of the three basic technologies. These include the parabolic trough collector system, which includes a description of the PTC power plant and outlook of the technology; the power tower systems and the dish systems. This is followed by the thermal analysis of the basic cycles of solar thermal power plants. Subsequently, solar updraft tower systems are examined, which include the initial steps and first demonstration, and the thermal analysis. Finally, solar ponds are examined, which is a form of large solar collector and storage system that can be used for solar power generation and include practical design considerations, salty water transmission estimation, methods of heat extraction, description of two large experimental solar ponds, and applications of solar ponds.

Soteris A. Kalogirou

2014-01-01T23:59:59.000Z

67

Solar absorption aqua-ammonia absorption system simulation base on climate of Malaysia  

Science Journals Connector (OSTI)

Solar energy is one of the most well known green sources of energy. This research presents a feasibility study of evacuated solar thermal collector by aqua-ammonia ejector absorption systems as a small scale air conditioning unit. The modeling has been ... Keywords: ejector, evacuated tubes, solar assisted absorption system

Poorya Ooshaksaraei; Sohif Mat; M. Yahya; Ahmad Mahir Razali; Azami Zaharim; K. Sopian

2010-01-01T23:59:59.000Z

68

Optimisation of Solar Collector Area for Solar Thermal Systems  

Science Journals Connector (OSTI)

Invariably solar energy systems are provided with an auxiliary energy source to meet the energy requirements of a system operating at a constant temperature. A technoeconomic analysis has been developed in thi...

N. K. Bansal; Aman Dang

1984-01-01T23:59:59.000Z

69

Solar Energy Systems Inc SES | Open Energy Information  

Open Energy Info (EERE)

Solar Energy Systems, Inc (SES) Place: Brooklyn, New York Zip: 11222 Sector: Solar Product: Private company designing, building, and maintaining solar energy systems. References:...

70

Pump and control unit for a solar heating installation for a water tank and particularly for a swimming pool  

SciTech Connect (OSTI)

The invention relates to a pump and control unit for a solar heating installation system for a water tank, particularly for a swimming pool. The system contains a solar collector, a hydraulic circuit which includes an outward-flow pipe, a return-flow pipe, a pump, a derivative-action control unit and two sensors mounted on the outward-flow pipe and on the return-flow pipe, respectively. The pump, the control unit and the two sensors are integrated into a single case. The case is provided in its top wall with a transparent opening which faces the return-flow sensor and through which said sensor can be exposed to solar radiation, such that the pump may be automatically activated during periods of sunshine, i.e., when the solar collector is heating the water returning to the tank, and stopped due to lack of sunshine.

Cannaux, G.; Calvet, G.

1985-09-17T23:59:59.000Z

71

Solar Energy in the United States | Department of Energy  

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

Solar Energy American Businesses Commit to Choose Solar Energy Since May 2014, over 300 private and public sector organizations have committed to choose solar energy,...

72

Solar Driven Adsorption Desalination System  

Science Journals Connector (OSTI)

Abstract Desalination is one of the most traditional processes to generate potable water. With the rise in demand for potable water and paucity of fresh water resources, this process has gained special importance. Conventional thermal desalination processes involves evaporative methods such as multi-stage flash and solar distils, which are found to be energy intensive, whereas reverse osmosis based systems have high operating and maintenance costs. The present work describes the Adsorption Desalination (AD) system, which is an emerging process of thermal desalination cum refrigeration capable of utilizing low grade heat easily obtainable from even non-concentrating type solar collectors. The system employs a combination of flash evaporation and thermal compression to generate cooling and desalinated water. The current study analyses the system dynamics of a 4-bed single stage silica-gel plus water based AD system. A lumped model is developed using conservation of energy and mass coupled with the kinetics of adsorption/desorption process. The constitutive equations for the system components viz. evaporator, adsorber and condenser, are solved and the performance of the system is evaluated for a single stage AD system at various condenser temperatures and cycle times to determine optimum operating conditions required for desalination and cooling.

S. Mitra; K. Srinivasan; P. Kumar; S.S. Murthy; P. Dutta

2014-01-01T23:59:59.000Z

73

Advanced solar concentrator development in the United States  

SciTech Connect (OSTI)

Sandia National Laboratories is the lead laboratory for the United States Department of Energy's program to develop, build, and test advanced solar concentrators that are low in cost, have high performance, and demonstrate a long lifetime. The principal focus of DOE's concentrator program is on the development of heliostats for central receiver power plants and point focus parabolic dishes for use with a 25-kWe Stirling engine. The status and future plans of DOE's program in each area are reviewed. 29 refs., 7 figs.

Alpert, D.J.

1990-01-01T23:59:59.000Z

74

On the Origin of the Solar System  

Science Journals Connector (OSTI)

...condensations throughout the solar nebula instead of a few large ones. This obstacle can be overcome only...comets throughout the solar system. Pluto's perturbations...is re- lated to the energy of the object). A certain...inner regions of the solar system by small random...

Gerard P. Kuiper

1951-01-01T23:59:59.000Z

75

Hybrid solar lighting systems and components  

DOE Patents [OSTI]

A hybrid solar lighting system and components having at least one hybrid solar concentrator, at least one fiber receiver, at least one hybrid luminaire, and a light distribution system operably connected to each hybrid solar concentrator and each hybrid luminaire. A controller operates each component.

Muhs, Jeffrey D. (Lenoir City, TN); Earl, Dennis D. (Knoxville, TN); Beshears, David L. (Knoxville, TN); Maxey, Lonnie C. (Powell, TN); Jordan, John K. (Oak Ridge, TN); Lind, Randall F. (Lenoir City, TN)

2007-06-12T23:59:59.000Z

76

Hybrid solar lighting distribution systems and components  

DOE Patents [OSTI]

A hybrid solar lighting distribution system and components having at least one hybrid solar concentrator, at least one fiber receiver, at least one hybrid luminaire, and a light distribution system operably connected to each hybrid solar concentrator and each hybrid luminaire. A controller operates all components.

Muhs, Jeffrey D. (Lenoir City, TN); Earl, Dennis D. (Knoxville, TN); Beshears, David L. (Knoxville, TN); Maxey, Lonnie C. (Powell, TN); Jordan, John K. (Oak Ridge, TN); Lind, Randall F. (Lenoir City, TN)

2011-07-05T23:59:59.000Z

77

CONTROL SYSTEM FOR SOLAR HEATING and COOLING  

E-Print Network [OSTI]

Solar Energy Society Meeting, Los Angeles, California, Julysolar in- solation measuring stations in northern and central California (California 94720 August 1975 A control system is being developed that will be capable of operating solar

Dols, C.

2010-01-01T23:59:59.000Z

78

Solar wind samples give insight into birth of solar system  

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

Solar wind samples Solar wind samples Solar wind samples give insight into birth of solar system Most of the Genesis payload consisted of fragile solar-wind collectors, which had been exposed to the solar particles over a period of two years. June 23, 2011 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials.

79

Glasses for solar energy conversion systems  

Science Journals Connector (OSTI)

Solar technologies are projected to increase tremendously over the next 10 years. Glasses are playing an important role as transparent materials of photovoltaic (PV) cells and concentrating solar power (CSP) systems. Glasses are materials of short energy payback time and environmental compatibility suitable for sustainable energy concepts. The paper reviews recent solar applications. Surface structuring and coating of glasses are shown to improve energy efficiency for solar conversion systems substantially. Encapsulated glass-to-glass PV modules and solar photocatalytic glass surfaces are identified as elements of a green architecture combining renewable power generating and destruction of air pollutants of urban environments. Emerging solar technologies for power generation, including transparent PV modules, solar chimney and thermoelectric systems may become significant areas of future solar glass applications.

J. Deubener; G. Helsch; A. Moiseev; H. Bornhöft

2009-01-01T23:59:59.000Z

80

Siemens Concentrated Solar Power Ltd previously Solel Solar Systems | Open  

Open Energy Info (EERE)

Siemens Concentrated Solar Power Ltd previously Solel Solar Systems Siemens Concentrated Solar Power Ltd previously Solel Solar Systems Jump to: navigation, search Name Siemens Concentrated Solar Power Ltd (previously Solel Solar Systems) Place Beit-Shemesh, Israel Zip 99107 Sector Solar Product Israel-based subsidiary manufacturing solar thermal electricity generation (STEG) components for power plants, also develops some of its own STEG projects. Coordinates 31.75°, 35° 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":31.75,"lon":35,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "united solar systems" 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

Analysis of hybrid solar systems  

SciTech Connect (OSTI)

This study uses the TRNSYS simulation program to evaluate the performance of active charge/passive discharge solar systems with water as the working fluid. This design was introduced in the Village Homes development in Davis, Calif., and is currently being used by Trident Energy Systems in Davis. TRNSYS simulations are used to evaluate the heating performance and cooling augmentation provided by systems in several climates. The results of the simulations are used to develop a simplified analysis tool similar to the F-chart and Phi-bar procedures used for active systems. This tool, currently in a preliminary stage, should provide the designer with quantitative performance estimates for comparison with other passive, active, and nonsolar heating and cooling designs.

Swisher, J.

1980-10-01T23:59:59.000Z

82

Solar Energy Alliance | Open Energy Information  

Open Energy Info (EERE)

Solar Energy Alliance Place: United Kingdom Sector: Solar, Wind energy Product: Grant approved installers of micro wind power and solar energy systems. Supply wind generators,...

83

Quantifying Avoided Fuel Use and Emissions from Solar Photovoltaic Generation in the Western United States  

Science Journals Connector (OSTI)

Quantifying Avoided Fuel Use and Emissions from Solar Photovoltaic Generation in the Western United States ... National Renewable Energy Laboratory, 1617 Cole Blvd, Golden, Colorado 80401 ...

Paul Denholm; Robert M. Margolis; James M. Milford

2008-11-17T23:59:59.000Z

84

SunShot: Making Solar Energy Cost Competitive Throughout the United States (Fact Sheet)  

SciTech Connect (OSTI)

The U.S. Department of Energy's SunShot Initiative focuses on making solar energy cost competitive throughout the United States.

Not Available

2011-06-01T23:59:59.000Z

85

SunShot: Making Solar Energy Cost Competitive Throughout the United States (Fact Sheet)  

SciTech Connect (OSTI)

The U.S. Department of Energy's SunShot Initiative focuses on making solar energy cost competitive throughout the United States.

McCamey, D.

2011-03-01T23:59:59.000Z

86

Turbine layout for and optimization of solar chimney power conversion units.  

E-Print Network [OSTI]

??ENGLISH ABSTRACT: The power conversion unit of a large solar chimney power plant converts the fluid power, first into mechanical power, and then into electrical… (more)

Fluri, Thomas Peter

2008-01-01T23:59:59.000Z

87

Solar Deployment System (SolarDS) Model: Documentation and Sample Results  

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

2 2 September 2009 The Solar Deployment System (SolarDS) Model: Documentation and Sample Results Paul Denholm, Easan Drury, and Robert Margolis National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Operated by the Alliance for Sustainable Energy, LLC Contract No. DE-AC36-08-GO28308 Technical Report NREL/TP-6A2-45832 September 2009 The Solar Deployment System (SolarDS) Model: Documentation and Sample Results Paul Denholm, Easan Drury, and Robert Margolis Prepared under Task No. PVD9.1210 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

88

Integrating Solar PV in Utility System Operations  

E-Print Network [OSTI]

PV into Utility System Operations System Scheduling APSSolar PV into Utility System Operations and occurs at 5 p.m.Solar PV in Utility System Operations A. Mills 1 , A.

Mills, A.

2014-01-01T23:59:59.000Z

89

APPLICATION OF TURBOMACHINERY IN SOLAR-ASSISTED RANKINE COOLING SYSTEMS  

E-Print Network [OSTI]

machinery. and the solar-assisted approach at these higherevaluation of the solar-assisted Rankine cycle could beTURBOMACHINER Y IN SOLAR - ASSISTED RANKINE COOLING SYSTEMS

Leech, J.

2010-01-01T23:59:59.000Z

90

Thermostatically controlled solar heating and cooling system  

SciTech Connect (OSTI)

This patent describes a solar heating and cooling system for simultaneously heating or cooling an ambient air system within a building, heating a hot water supply for domestic use within the building and heating or cooling a swimming pool adjacent the building comprising a building. This comprises a swimming pool as a primary water source, a solar connector connected to the swimming pool, a heat pump for controlling ambient air temperature within the building, an energy conservation unit connected to the heat pump and to the hot water supply for utilizing hot gases from the heat pump to heat water in the hot water supply and an air heat exchanger connected to the air system and to the heat pump for selectively heating or cooling air in the building. Also a water heat exchanger is connected to a water source for selectively transferring heat between the heat pump and the water source, a well as a secondary water source connected to the water heat exchanger.

Yovanofski, T.

1986-12-16T23:59:59.000Z

91

Innovative Systems Engineering Solar LLC ISE Solar LLC | Open Energy  

Open Energy Info (EERE)

Solar LLC ISE Solar LLC Solar LLC ISE Solar LLC Jump to: navigation, search Name Innovative Systems Engineering Solar LLC (ISE Solar LLC) Place Warminster, Pennsylvania Zip 18974-1454 Sector Solar Product US-based manufacturer of vacuum deposition equipment for thin-film amorphous silicon products; offers management and operation of thin-film solar plants. Coordinates 40.205459°, -75.100077° 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":40.205459,"lon":-75.100077,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

92

Solar Leasing for Residential Photovoltaic Systems (Fact Sheet)  

SciTech Connect (OSTI)

This publication examines the solar lease option for residential PV systems and describes two solar lease programs already in place.

Not Available

2009-02-01T23:59:59.000Z

93

Webinar: Highly Efficient Solar Thermochemical Reaction Systems  

Broader source: Energy.gov [DOE]

Video recording and text version of the Fuel Cell Technologies Office webinar titled "Highly Efficient Solar Thermochemical Reaction Systems," originally presented on January 13, 2015.

94

Highly Efficient Solar Thermochemical Reaction Systems  

Broader source: Energy.gov [DOE]

Download presentation slides from the DOE Fuel Cell Technologies Office webinar "Highly Efficient Solar Thermochemical Reaction Systems" held on January 13, 2015.

95

CONTROL SYSTEM FOR SOLAR HEATING and COOLING  

E-Print Network [OSTI]

sensors and control valves used in our generalized experimental system. The experimental solarsensors are remotely located at critical (in terms of decision-making) locations in the solar

Dols, C.

2010-01-01T23:59:59.000Z

96

Project Profile: Brayton Solar Power Conversion System  

Broader source: Energy.gov [DOE]

Brayton Energy, under the CSP R&D FOA, is looking to demonstrate the viability and economics of a new concentrating solar thermal power conversion system.

97

Expert Solar Systems | Open Energy Information  

Open Energy Info (EERE)

Expert Solar Systems Expert Solar Systems Jump to: navigation, search Logo: Expert Solar Systems Name Expert Solar Systems Address 11700 E. Sneller Vista Place Tucson, Arizona Zip 85749 Sector Solar Product Solar energy systems Year founded 1977 Phone number 520-749-3538 Website http://www.expertsolar.com/ Coordinates 32.288756°, -110.741866° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.288756,"lon":-110.741866,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

98

Implementations of electric vehicle system based on solar energy in Singapore : assessment of solar photovoltaic systems  

E-Print Network [OSTI]

To evaluate the feasibility of solar energy based Electric Vehicle Transportation System in Singapore, the state of the art Photovoltaic Systems have been reviewed in this report with a focus on solar cell technologies. ...

Sun, Li

2009-01-01T23:59:59.000Z

99

Study Of a Solar Trough Concentrating System for Application of Solar Energy Refrigeration  

Science Journals Connector (OSTI)

A solar concentrating trough device has been constructed for further application of solar heating and power system or solar refrigeration. A model for both evacuated tube and copper tube heated by solar trough co...

Li Ming; Wang Liuling; Zhou Xizheng…

2009-01-01T23:59:59.000Z

100

Concentrating Solar Power Dish/Engine System Basics | Department of Energy  

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

Concentrating Solar Power Dish/Engine System Basics Concentrating Solar Power Dish/Engine System Basics Concentrating Solar Power Dish/Engine System Basics August 20, 2013 - 5:02pm Addthis The dish/engine system is a concentrating solar power (CSP) technology that produces relatively small amounts of electricity compared to other CSP technologies-typically in the range of 3 to 25 kilowatts. Dish/engine systems use a parabolic dish of mirrors to direct and concentrate sunlight onto a central engine that produces electricity. The two major parts of the system are the solar concentrator and the power conversion unit. Solar Concentrator Illustration of a dish/engine power plant. Sunlight is shown reflecting off the large dish-shaped concentrator and onto the mounted power conversion unit to generate electricity that is fed into the power grid. The system looks similar to a large satellite television receiver dish.

Note: This page contains sample records for the topic "united solar systems" 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

Annual measured performance of building-integrated solar energy systems in demonstration low-energy solar house  

Science Journals Connector (OSTI)

This paper presents the details of the output and efficiency of the annual performance of building-integrated solar energy systems for a solar water heating system and solar photovoltaic (PV) modules of a demonstration near-zero-energy solar house that was constructed on the campus of the Korea Institute of Energy Research. The thermal systems installed in the house were a solar water heating system with building-integrated solar collectors for water heating and for part of the space heating and a ground-coupled heat pump for space cooling and part of the space heating. Solar PV modules were installed on the roof of the house. The performance of these systems was monitored for more than 1 yr. The annual efficiencies of the building's integrated solar collectors and solar PV were 22.8% and 10.9% respectively. The total annual solar fraction of the solar heating system was 69.7% with an annual solar heat production of 248?kW h/m2. This paper also focuses on the efficiency of the house's solar storage based upon intentionally varied drainage of hot water from the storage tank. It was found that the thermal loss from the solar storage tank has a strong functional relationship with the thermal demand of the solar storage tank per unit volume. For example when the hot water consumption was reduced by half during September the thermal loss increased to more than 70% which would otherwise have been around 30%.

2014-01-01T23:59:59.000Z

102

EEC 289-L Photovoltaics and Solar Cells 3 Units Winter Quarter (Alternate Years)  

E-Print Network [OSTI]

strategies 4. Microcrystalline Si, and effects of defects on PV 5. Thin-Film Solar Cells a. -Si on glass bEEC 289-L Photovoltaics and Solar Cells 3 Units ­ Winter Quarter (Alternate Years) Prerequisite, and third-generation photovoltaics and solar cells, including design, fabrication technology, and grid

103

Solar Energy Grid Integration Systems-Advanced Concepts | Department...  

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

Systems Integration Solar Energy Grid Integration Systems-Advanced Concepts Solar Energy Grid Integration Systems-Advanced Concepts On September 1, 2011, DOE announced 25.9...

104

Solar Systems and Solutions Soluciones Sistemas Solares 3S | Open Energy  

Open Energy Info (EERE)

Solutions Soluciones Sistemas Solares 3S Solutions Soluciones Sistemas Solares 3S Jump to: navigation, search Name Solar Systems and Solutions / Soluciones Sistemas Solares (3S) Place Navarre, Spain Sector Solar Product Installs and engineers solar passive panels. References Solar Systems and Solutions / Soluciones Sistemas Solares (3S)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Solar Systems and Solutions / Soluciones Sistemas Solares (3S) is a company located in Navarre, Spain . References ↑ "Solar Systems and Solutions / Soluciones Sistemas Solares (3S)" Retrieved from "http://en.openei.org/w/index.php?title=Solar_Systems_and_Solutions_Soluciones_Sistemas_Solares_3S&oldid=351332

105

Impact of Improved Solar Forecasts on Bulk Power System Operations in ISO-NE: Preprint  

SciTech Connect (OSTI)

The diurnal nature of solar power is made uncertain by variable cloud cover and the influence of atmospheric conditions on irradiance scattering processes. Its forecasting has become increasingly important to the unit commitment and dispatch process for efficient scheduling of generators in power system operations. This study examines the value of improved solar power forecasting for the Independent System Operator-New England system. The results show how 25% solar power penetration reduces net electricity generation costs by 22.9%.

Brancucci Martinez-Anido, C.; Florita, A.; Hodge, B. M.

2014-09-01T23:59:59.000Z

106

Solar Energy Systems - Research - Systems Analysis - Smart Grid...  

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

Solar Energy Systems U.S. Department of Energy Search Argonne ... Search Argonne Home > SES Home Research Home Photovoltaics Transparent Conductors Concentrating Sunlight Systems...

107

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

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

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

108

An analysis of distributed solar fuel systems  

E-Print Network [OSTI]

While solar fuel systems offer tremendous potential to address global clean energy needs, most existing analyses have focused on the feasibility of large centralized systems and applications. Not much research exists on ...

Thomas, Alex, S.M. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

109

Origin of the Solar System  

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

the Sun. * The solar nebula is believed to have been hot near the Sun, with the temperature decreasing with heliocentric distance. * Stingray nebula APS Colloquium...

110

SunShot Initiative Installs Solar Energy System | Department...  

Office of Environmental Management (EM)

SunShot Initiative Installs Solar Energy System SunShot Initiative Installs Solar Energy System Addthis 1 of 10 SunShot Initiative team members install a solar energy system on a...

111

Integrating Solar PV in Utility System Operations  

SciTech Connect (OSTI)

This study develops a systematic framework for estimating the increase in operating costs due to uncertainty and variability in renewable resources, uses the framework to quantify the integration costs associated with sub-hourly solar power variability and uncertainty, and shows how changes in system operations may affect these costs. Toward this end, we present a statistical method for estimating the required balancing reserves to maintain system reliability along with a model for commitment and dispatch of the portfolio of thermal and renewable resources at different stages of system operations. We estimate the costs of sub-hourly solar variability, short-term forecast errors, and day-ahead (DA) forecast errors as the difference in production costs between a case with “realistic” PV (i.e., subhourly solar variability and uncertainty are fully included in the modeling) and a case with “well behaved” PV (i.e., PV is assumed to have no sub-hourly variability and can be perfectly forecasted). In addition, we highlight current practices that allow utilities to compensate for the issues encountered at the sub-hourly time frame with increased levels of PV penetration. In this analysis we use the analytical framework to simulate utility operations with increasing deployment of PV in a case study of Arizona Public Service Company (APS), a utility in the southwestern United States. In our analysis, we focus on three processes that are important in understanding the management of PV variability and uncertainty in power system operations. First, we represent the decisions made the day before the operating day through a DA commitment model that relies on imperfect DA forecasts of load and wind as well as PV generation. Second, we represent the decisions made by schedulers in the operating day through hour-ahead (HA) scheduling. Peaking units can be committed or decommitted in the HA schedules and online units can be redispatched using forecasts that are improved relative to DA forecasts, but still imperfect. Finally, we represent decisions within the operating hour by schedulers and transmission system operators as real-time (RT) balancing. We simulate the DA and HA scheduling processes with a detailed unit-commitment (UC) and economic dispatch (ED) optimization model. This model creates a least-cost dispatch and commitment plan for the conventional generating units using forecasts and reserve requirements as inputs. We consider only the generation units and load of the utility in this analysis; we do not consider opportunities to trade power with neighboring utilities. We also do not consider provision of reserves from renewables or from demand-side options. We estimate dynamic reserve requirements in order to meet reliability requirements in the RT operations, considering the uncertainty and variability in load, solar PV, and wind resources. Balancing reserve requirements are based on the 2.5th and 97.5th percentile of 1-min deviations from the HA schedule in a previous year. We then simulate RT deployment of balancing reserves using a separate minute-by-minute simulation of deviations from the HA schedules in the operating year. In the simulations we assume that balancing reserves can be fully deployed in 10 min. The minute-by-minute deviations account for HA forecasting errors and the actual variability of the load, wind, and solar generation. Using these minute-by-minute deviations and deployment of balancing reserves, we evaluate the impact of PV on system reliability through the calculation of the standard reliability metric called Control Performance Standard 2 (CPS2). Broadly speaking, the CPS2 score measures the percentage of 10-min periods in which a balancing area is able to balance supply and demand within a specific threshold. Compliance with the North American Electric Reliability Corporation (NERC) reliability standards requires that the CPS2 score must exceed 90% (i.e., the balancing area must maintain adequate balance for 90% of the 10-min periods). The combination of representing DA forecast errors in the

Mills, A.; Botterud, A.; Wu, J.; Zhou, Z.; Hodge, B-M.; Heany, M.

2013-10-31T23:59:59.000Z

112

Preliminary Investigation into Solar Thermal Combi-system Performance.  

E-Print Network [OSTI]

??Solar thermal combi-systems use solar energy to provide thermal energy for space heating and domestic hot water. These systems come in many different designs and… (more)

Lee, Elizabeth

2014-01-01T23:59:59.000Z

113

SIPS: Solar Irradiance Prediction System Stefan Achleitner  

E-Print Network [OSTI]

-scaling capacities of renewable energy sources such as wind and solar. However, variability and uncertainty in powerSIPS: Solar Irradiance Prediction System Stefan Achleitner Computer Science and Engineering Liu and Alberto E. Cerpa Electrical Engineering and Computer Science University of California, Merced

Cerpa, Alberto E.

114

Chapter 5 - Solar Water-Heating Systems  

Science Journals Connector (OSTI)

Abstract Chapter 5 is on solar water-heating systems. Both passive and active systems are described. Passive systems include thermosiphon and integrated collector storage systems. The former include theoretical performance of thermosiphon solar water heaters, reverse circulation in thermosiphon systems, vertical against horizontal tank configurations, freeze protection, and tracking thermosiphons. Subsequently, active systems are described, which include direct circulation systems, indirect water-heating systems, air water-heating systems, heat pump systems and pool heating systems, which include the analysis of various heat losses like evaporation, radiation, convection heat losses, make-up water load, and solar radiation-heat gain. Then the characteristics and thermal analysis of heat storage systems for both water and air systems are presented. The module and array design methods are then described and include the effects of shading, thermal expansion, galvanic corrosion, array sizing, heat exchangers, pipe and duct losses, partially shaded collectors and over-temperature protection—followed by an analysis of the characteristics of differential thermostats. Finally, methods to calculate the hot water demand are given as well as a review of international standards used to evaluate the solar water heaters performance. The chapter includes also simple system models and practical considerations for the setup of solar water-heating systems, which include: pipes, supports and insulation; pumps; valves and instrumentation.

Soteris A. Kalogirou

2014-01-01T23:59:59.000Z

115

Solar Space Heating with Air and Liquid Systems  

Science Journals Connector (OSTI)

...several thousand solar space heating systems...can be supplied by solar energy delivered from flat-plate...liquid collection and storage systems, demand...Annual costs of solar heating equipment...current values of energy savings, but fuel...

1980-01-01T23:59:59.000Z

116

Impact of Solar PV Laminate Membrane Systems on Roofs | Department...  

Office of Environmental Management (EM)

Information Resources Impact of Solar PV Laminate Membrane Systems on Roofs Impact of Solar PV Laminate Membrane Systems on Roofs In 2008, CH2M HILL performed a solar site...

117

Portable brine evaporator unit, process, and system  

DOE Patents [OSTI]

The present invention discloses a comprehensive, efficient, and cost effective portable evaporator unit, method, and system for the treatment of brine. The evaporator unit, method, and system require a pretreatment process that removes heavy metals, crude oil, and other contaminates in preparation for the evaporator unit. The pretreatment and the evaporator unit, method, and system process metals and brine at the site where they are generated (the well site). Thus, saving significant money to producers who can avoid present and future increases in transportation costs.

Hart, Paul John (Indiana, PA); Miller, Bruce G. (State College, PA); Wincek, Ronald T. (State College, PA); Decker, Glenn E. (Bellefonte, PA); Johnson, David K. (Port Matilda, PA)

2009-04-07T23:59:59.000Z

118

Analysis of solar desalination system using heat pump  

Science Journals Connector (OSTI)

Abstract This paper investigates a pilot desalination system which consists of a direct expansion solar assisted heat pump (DXSAHP) coupled to a single-effect evaporator unit. The working fluid used is \\{R134a\\} and distillate is obtained via falling film evaporation and flashing in the unit. Experiments have been conducted in both day and night meteorological conditions in Singapore and the effects of solar irradiation and compressor speed have been studied against the system performance. From the experiments, the Performance Ratio (PR) obtained ranges from 0.43 to 0.88, the average Coefficient of Performance (COP) was 8 and the highest distillate production recorded was 1.38 kg/h.

Zakaria Mohd Amin; M.N.A. Hawlader

2015-01-01T23:59:59.000Z

119

Searching for the Solar System's Chemical Recipe  

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

Searching for the Solar System's Searching for the Solar System's Chemical Recipe Searching for the Solar System's Chemical Recipe Print Wednesday, 20 February 2013 00:00 The ratio of isotopes in elements like oxygen, sulfur, and nitrogen were once thought to be much the same everywhere, determined only by their different masses. Then isotope ratios in meteorites, interplanetary dust and gas, and the sun itself were found to differ from those on Earth. Planetary researchers like UC San Diego's Mark Thiemens and his colleagues, working with Musa Ahmed of the Chemical Sciences Division, are now using the Chemical Dynamics Beamline at the Advanced Light Source to study these "mass-independent" effects and their origins in the chemical processes of the early solar system.

120

Mercury Solar Systems | Open Energy Information  

Open Energy Info (EERE)

commercial and residential clients in the New York metrotri-state area. References: Mercury Solar Systems1 This article is a stub. You can help OpenEI by expanding it. Mercury...

Note: This page contains sample records for the topic "united solar systems" 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

Property Tax Exclusion for Solar Energy Systems  

Broader source: Energy.gov [DOE]

'''''Note: The California State Board of Equalization (BOE) approved new [http://www.boe.ca.gov/proptaxes/pdf/lta12053.pdf guidelines] for the Active Solar Energy Systems New Construction Exclusion...

122

Webinar: Highly Efficient Solar Thermochemical Reaction Systems  

Broader source: Energy.gov [DOE]

The Fuel Cell Technologies Office will present a live webinar titled "Highly Efficient Solar Thermochemical Reaction Systems" on Tuesday, January 13, from 12:00 to 1:00 p.m. Eastern Standard Time.

123

Property Tax Exemption for Residential Solar Systems  

Broader source: Energy.gov [DOE]

[http://www.nmlegis.gov/Sessions/10%20Regular/final/HB0233.pdf HB 233 of 2010] exempted residential solar energy systems from property tax assessments. According to state law, for the purposes of...

124

Studying the Solar System's Chemical Recipe  

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

Thiemens, Dean of the Division of Physical Sciences at UCSD, has worked to learn how our solar system evolved. Now he and his colleagues Teresa Jackson and Subrata Chakraborty...

125

THE HISTORY OF THE SOLAR SYSTEM  

Science Journals Connector (OSTI)

...because they are destroyed at relatively low temperatures by thermonuclear reac- tions in stellar interiors. However, cosmic rays...the presence of these elements, not as a consequence of thermonuclear reactions in the stars that provided the solar system gas...

Fred L. Whipple

1964-01-01T23:59:59.000Z

126

The solar system mimics a hydrogen atom  

E-Print Network [OSTI]

The solar system and the hydrogen atom are two well known systems on different scales and look unrelated: The former is a classical system on the scale of about billions of kilometers and the latter a quantum system of about tens of picometers. Here we show a connection between them. Specifically, we find that the orbital radii of the planets mimic the mean radii of the energy levels of a quantum system under the Coulomb-like potential. This connection might be explained by very light dark matter which manifests quantum behavior in the solar system, thereby hinting at a dark matter mass around $8 \\times 10^{-14}$ electron-volts.

Je-An Gu

2014-03-28T23:59:59.000Z

127

Total Petroleum Systems and Assessment Units (AU)  

E-Print Network [OSTI]

Total Petroleum Systems (TPS) and Assessment Units (AU) Field type Surface water Groundwater X X X X X X X X AU 00000003 Oil/ Gas X X X X X X X X Total X X X X X X X Total Petroleum Systems (TPS) and Assessment Units (AU) Field type Total undiscovered petroleum (MMBO or BCFG) Water per oil

Torgersen, Christian

128

INVENTORY OF SOLAR RADIATION/SOLAR ENERGY SYSTEMS ESTIMATORS, MODELS, SITE-SPECIFIC DATA, AND PUBLICATIONS  

E-Print Network [OSTI]

INVENTORY OF SOLAR RADIATION/SOLAR ENERGY SYSTEMS ESTIMATORS, MODELS, SITE-SPECIFIC DATA, and Buildings Systems Integration Center National Renewable Energy Laboratory 8 July 2009 SOLAR SYSTEM POTENTIAL/calculators/PVWATTS/version1/ http://rredc.nrel.gov/solar/calculators/PVWATTS/version2/ Estimates the electrical energy

129

Installation guidelines for Solar Heating System, single-family residence at New Castle, Pennsylvania  

SciTech Connect (OSTI)

The Solar Heating System installer guidelines are provided for each subsystem and includes testing and filling the system. This single-family residential heating system is a solar-assisted, hydronic-to-warm-air system with solar-assisted domestic water heating. It is composed of the following major components: liquid cooled flat plate collectors; water storage tank; passive solar-fired domestic water preheater; electric hot water heater; heat pump with electric backup; solar hot water coil unit; tube-and-shell heat exchanger, three pumps, and associated pipes and valving in an energy transport module; control system; and air-cooled heat purge unit. Information is also provided on the operating procedures, controls, caution requirements, and routine and schedule maintenance. Information consists of written procedures, schematics, detail drawings, pictures and manufacturer's component data.

Not Available

1980-01-01T23:59:59.000Z

130

The formation of the solar system  

E-Print Network [OSTI]

The solar system started to form about 4.56 Gyr ago and despite the long intervening time span, there still exist several clues about its formation. The three major sources for this information are meteorites, the present solar system structure and the planet-forming systems around young stars. In this introduction we give an overview of the current understanding of the solar system formation from all these different research fields. This includes the question of the lifetime of the solar protoplanetary disc, the different stages of planet formation, their duration, and their relative importance. We consider whether meteorite evidence and observations of protoplanetary discs point in the same direction. This will tell us whether our solar system had a typical formation history or an exceptional one. There are also many indications that the solar system formed as part of a star cluster. Here we examine the types of cluster the Sun could have formed in, especially whether its stellar density was at any stage hi...

Pfalzner, S; Gounelle, M; Johansen, A; Muenker, C; Lacerda, P; Zwart, S Portegies; Testi, L; Trieloff, M; Veras, D

2015-01-01T23:59:59.000Z

131

Advancing State-of-the-Art Concentrating Solar Power Systems  

Office of Energy Efficiency and Renewable Energy (EERE)

New solar receiver for CSP system leads to higher efficiency, increased durability, and reduced cost.

132

Mirasol Solar Energy Systems | Open Energy Information  

Open Energy Info (EERE)

Mirasol Solar Energy Systems Mirasol Solar Energy Systems Jump to: navigation, search Logo: Mirasol Solar Energy Systems Name Mirasol Solar Energy Systems Address 101 Spring Road NE Place Rio Rancho, New Mexico Zip 87124 Sector Solar Product Solar energy systems and equipment Year founded 2006 Phone number 1-505-892-6406 Website http://www.mirasolenergysystem Coordinates 35.2575628°, -106.6869152° 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":35.2575628,"lon":-106.6869152,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

133

Using RPS Policies to Grow the Solar Market in the United States  

SciTech Connect (OSTI)

The market for photovoltaics in the United States remains small relative to the nation's solar resource potential. Nonetheless, annual grid-connected PV installations have grown from just 4 MW in 2000 to over 100 MW in 2006, fast enough to the catch the attention of the global solar industry. The state of California deserves much of the credit for this growth. The State's historical rebate programs resulted in roughly 75% of the nation's grid-connected PV additions from 2000 through 2006 being located in California, and the $3 billion California Solar Initiative will ensure that the State remains a mainstay of the US solar industry for years to come. But California is not the only market for solar in the US; other states have recently developed policies that may rival those of the western state in terms of future growth potential. In particular, 25 states, as well as Washington, D.C., have established renewables portfolio standards (RPS), sometimes called quota systems in Europe, requiring electricity suppliers in those states to source a minimum portion of their need from renewable electricity. (Because a national RPS is not yet in place, my focus here is on state policies). Under many of these state policies, solar is not expected to fare particularly well: PV installations simply cannot compete on cost or scale with large wind plants in the US, at least not yet. In response, an expanding list of states have established solar or distributed generation (DG) set-asides within their RPS policies, effectively requiring that some fraction of RPS-driven supply derive from solar energy. The popularity of set-asides for solar and/or DG has increased dramatically in recent years. Already, 11 states and D.C. have developed such RPS set-asides. These include states with outstanding solar resources, such as Nevada, Arizona, Colorado, and New Mexico, as well as areas where the solar resource is less robust, including North Carolina, Maryland, Pennsylvania, New Jersey, New York, New Hampshire, Delaware, and DC. Among those states with set-asides, two are restricted to PV applications, nine also allow solar-thermal electric to qualify, three allow solar heating and/or cooling to qualify, and three have broader renewable DG set-asides. The policies also differ in their targets and timeframes, whether projects must be located in-state, the application of cost caps, and the degree of oversight on how suppliers contract with solar projects. Only three of these states have more than two years of experience with solar or DG set-asides so far: Arizona, Nevada, and New Jersey. And yet, despite the embryonic stage of these policies, they have already begun to have a significant impact on the grid-connected PV market. From 2000-2006, 16% (or 48 MW) of grid-connected PV installations in the US occurred in states with such set-asides, a percentage that increases to 67% if one only considers PV additions outside of California. The importance of these programs is growing and will continue to expand. In fact, if one assumes (admittedly somewhat optimistically) that these policies will be fully achieved, then existing state solar or DG set-asides could result in 400 MW of solar capacity by 2010, 2,000 MW by 2015, and 6,500 MW by 2025. This equates to annual additions of roughly 100 MW through 2010, increasing to over 500 MW per year by 2015 and 700 MW per year by 2020. PV is not assured of all of this capacity, and will receive strong competition from solar-thermal electric facilities in the desert southwest. Nonetheless, set-asides in those states outside of the southwest will favor PV, and even some of the southwestern states have designed their RPS programs to ensure that PV fares well, relative to other forms of solar energy. Since 2000, Arizona and, more recently, New Jersey have represented the largest solar set-aside-driven PV markets. Even more-recent additions are coming from Colorado, Nevada, New York, and Pennsylvania. In the long-term, the largest markets for solar electricity are predicted to include New Jersey, Maryland, Arizona, and P

Wiser, Ryan H; Wiser, Ryan H.

2007-11-20T23:59:59.000Z

134

Homeowners Guide to Leasing a Solar Electric System (Brochure)  

SciTech Connect (OSTI)

This updated fact sheet provides an introduction to solar leases for homeowners who are considering installing a solar electric system on their home.

Not Available

2014-07-01T23:59:59.000Z

135

Onsite Wastewater Treatment Systems: Aerobic Treatment Unit  

E-Print Network [OSTI]

wastewater treatment systems use. They remove 85 to 98 percent of the organic matter and solids from the wastewater, producing effluent as clean as that from munici- pal wastewater treatment plants, and cleaner than that from conventional septic tanks.... Onsite wastewater treatment systems Single-compartment trash tank Chlorinator Aerobic treatment unit Spray heads Pump tank Bruce Lesikar Professor and Extension Agricultural Engineer The Texas A&M System Aerobic treatment units, which are certified...

Lesikar, Bruce J.

2008-10-31T23:59:59.000Z

136

Environmental Solar Systems | Open Energy Information  

Open Energy Info (EERE)

Solar Systems Solar Systems Address 117 West Street Place Methuen, Massachusetts Zip 01844 Sector Solar Product Solar thermal panels for home heating Website http://www.environmentalsolars Coordinates 42.7221279°, -71.2468847° 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":42.7221279,"lon":-71.2468847,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

137

Solar-Electric Dish Stirling System Development  

SciTech Connect (OSTI)

Electrical power generated with the heat from the sun, called solar thermal power, is produced with three types of concentrating solar systems - trough or line-focus systems; power towers in which a centrally-located thermal receiver is illuminated with a large field of sun-tracking heliostats; and dish/engine systems. A special case of the third type of system, a dish/Stirling system, is the subject of this paper. A dish/Stirling system comprises a parabolic dish concentrator, a thermal receiver, and a Stirling engine/generator located at the focus of the dish. Several different dish/Stirling systems have been built and operated during the past 15 years. One system claims the world record for net conversion of solar energy to electric power of 29.4%; and two different company`s systems have accumulated thousands of hours of on-sun operation. Due to de-regulation and intense competition in global energy markets as well as the immaturity of the technology, dish/Stirling systems have not yet found their way into the marketplace. This situation is changing as solar technologies become more mature and manufacturers identify high-value niche markets for their products. In this paper, I review the history of dish/Stirling system development with an emphasis on technical and other issues that directly impact the Stirling engine. I also try to provide some insight to the opportunities and barriers confronting the application of dish/Stirling in power generation markets.

Mancini, T.R.

1997-12-31T23:59:59.000Z

138

INFORMATION SYSTEMS UNIT Topic Policies  

E-Print Network [OSTI]

, but not limited to: � Damaging hardware or corrupting software; � Attempting to `hack' into systems; � Using

139

Radio bursts from Solar System planets  

E-Print Network [OSTI]

interaction · Kinetic energy flux on obstacle cross-section : Pk ~ NmV2 V Robs 2 N=No/d2 No=5 cm-3 m~1.1�mp RobsP 2 #12;Flow Obstacle Weakly/Not magnetized (Solar wind) Strongly magnetized (Jovian magnetosphereRadio bursts from Solar System planets and Extrasolar planets Philippe Zarka Observatoire de Paris

Demoulin, Pascal

140

NREL: News Feature - Solar System Tops Off Efficient NREL Building  

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

Solar System Tops Off Efficient NREL Building September 29, 2010 Photo of the sun reflecting off of a solar panel on a roof. Enlarge image More than 1,800 solar panels are being...

Note: This page contains sample records for the topic "united solar systems" 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

Operational results from the Saudi Solar Village Photovoltaic power system  

SciTech Connect (OSTI)

The world's largest photovoltaic power system was carried into the operation phase a few months ago. This system was developed and fabricated in the United States and it is providing electrical energy to three remote villages in Saudi Arabia. The facility includes a 350 kW photovoltaic array, 1-MW diesel powered generator, 1100 kWH lead acid batteries, a 300 KVA inverter and a solar weather data monitoring station. The photovoltaic power system is capable of completely automatic operation. It is designed to operate in stand-alone and cogeneration modes of operation.

Huraib, F.; Al-Sani, A.; Khoshami, B.H.

1982-08-01T23:59:59.000Z

142

SunShot Initiative: Deployable Commercial Rooftop Solar Electric System  

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

Deployable Commercial Rooftop Deployable Commercial Rooftop Solar Electric System to someone by E-mail Share SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Facebook Tweet about SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Twitter Bookmark SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Google Bookmark SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Delicious Rank SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on Digg Find More places to share SunShot Initiative: Deployable Commercial Rooftop Solar Electric System on AddThis.com... Concentrating Solar Power Photovoltaics Systems Integration Research, Development, & Demonstration Competitive Awards Solar Utility Networks: Replicable Innovations in Solar Energy

143

Emissions through solar PV systems - a review  

Science Journals Connector (OSTI)

Photovoltaic (PV) system has been quoted for wide range of green house gas (GHG) emissions through life cycle assessment (LCA) studies. There are a variety of solar cell materials available, which vary in conversion efficiency and emission of CO2. This paper is based on the LCA analysis of PV system which starts from the production of these solar cells and goes through the stages known as transportation, installation, operational period to their disposal or recycling and tried to find out the GHG emission in all the stages separately and the environmental impact of this emission. In this paper, different improvement techniques were also suggested to reduce the impact of GHG through solar PV system.

Mohammad Ziaur Rahman

2014-01-01T23:59:59.000Z

144

NREL: Concentrating Solar Power Research - Systems Analysis  

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

Systems Analysis Systems Analysis Featured Resource Learn more about NREL's capabilities in modeling and analysis of CSP Systems. NREL and other national laboratories support U.S. Department of Energy (DOE) systems analysis activities to evaluate and validate the cost, performance, durability, and grid penetration impacts for concentrating solar power (CSP) technologies. DOE's systems analysis program focuses on the greatest opportunities for impact, based on estimates of the current and future costs of CSP plants, subsystems, and components. Opportunities and Potential Impact The DOE SunShot Initiative to reduce the installed cost of solar energy systems by 75% by the end of the decade will require low-cost configurations that are easy to integrate into the electric grid. Systems

145

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

146

On the Solar System-Debris Disk Connecction  

E-Print Network [OSTI]

This paper emphasizes the connection between solar and extra-solar debris disks: how models and observations of the Solar System are helping us understand the debris disk phenomenon, and vice versa, how debris disks are helping us place our Solar System into context.

Amaya Moro-Martin

2007-12-14T23:59:59.000Z

147

High throughput solar cell ablation system  

DOE Patents [OSTI]

A solar cell is formed using a solar cell ablation system. The ablation system includes a single laser source and several laser scanners. The laser scanners include a master laser scanner, with the rest of the laser scanners being slaved to the master laser scanner. A laser beam from the laser source is split into several laser beams, with the laser beams being scanned onto corresponding wafers using the laser scanners in accordance with one or more patterns. The laser beams may be scanned on the wafers using the same or different power levels of the laser source.

Harley, Gabriel; Pass, Thomas; Cousins, Peter John; Viatella, John

2012-09-11T23:59:59.000Z

148

High throughput solar cell ablation system  

DOE Patents [OSTI]

A solar cell is formed using a solar cell ablation system. The ablation system includes a single laser source and several laser scanners. The laser scanners include a master laser scanner, with the rest of the laser scanners being slaved to the master laser scanner. A laser beam from the laser source is split into several laser beams, with the laser beams being scanned onto corresponding wafers using the laser scanners in accordance with one or more patterns. The laser beams may be scanned on the wafers using the same or different power levels of the laser source.

Harley, Gabriel; Pass, Thomas; Cousins, Peter John; Viatella, John

2014-10-14T23:59:59.000Z

149

Solar hot water system installed at Mobile, Alabama. Final report  

SciTech Connect (OSTI)

This final report describes the solar energy hot water system installed at LaQuinta Motor Inn Inc., at Mobile, Alabama. The building is a 122 unit motel. The system consists of six rows of ten collectors and three rows of eleven collectors (1990 square feet) mounted on the roof. Griswald flow control valves were installed to regulate the flow to each row. Two Heliotrope electronic thermometers with a combined capability of measuring the temperatures of 22 different locations were installed for monitoring purposes. Engineering drawings, component specifications, and operator instructions are included.

None

1980-10-01T23:59:59.000Z

150

Solco International Ltd formerly Solar Energy Systems | Open Energy  

Open Energy Info (EERE)

International Ltd formerly Solar Energy Systems International Ltd formerly Solar Energy Systems Jump to: navigation, search Name Solco International Ltd (formerly Solar Energy Systems) Place Welshpool, Western Australia, Australia Zip 6016 Sector Solar Product Solar techology company specialising in solar powered energy systems, pumps and reverse osmosis water purification systems. References Solco International Ltd (formerly Solar Energy Systems)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Solco International Ltd (formerly Solar Energy Systems) is a company located in Welshpool, Western Australia, Australia . References ↑ "Solco International Ltd (formerly Solar Energy Systems)" Retrieved from

151

SunShot Initiative: Integrated Solar Thermochemical Reaction System  

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

Integrated Solar Thermochemical Integrated Solar Thermochemical Reaction System to someone by E-mail Share SunShot Initiative: Integrated Solar Thermochemical Reaction System on Facebook Tweet about SunShot Initiative: Integrated Solar Thermochemical Reaction System on Twitter Bookmark SunShot Initiative: Integrated Solar Thermochemical Reaction System on Google Bookmark SunShot Initiative: Integrated Solar Thermochemical Reaction System on Delicious Rank SunShot Initiative: Integrated Solar Thermochemical Reaction System on Digg Find More places to share SunShot Initiative: Integrated Solar Thermochemical Reaction System 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

152

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

E-Print Network [OSTI]

for Storage of Solar Thermal Energy,” Solar Energy, 18 (3),Toward Molecular Solar-Thermal Energy Storage,” Angewandtescale molecular solar thermal energy storage system, in

Coso, Dusan

2013-01-01T23:59:59.000Z

153

Solar collector systems analysis using infrared scanning techniques  

SciTech Connect (OSTI)

Solar energy collector systems analysis using thermography is discussed. The research at the Solar Energy Research Institute (SERI) in this area has focused on infrared (IR) scanning techniques and equipment to determine temperature distributions, flow patterns, and air blockages in solar collectors. The results of this extensive study, covering many sites and types of collectors, illustrate the capabilities of IR analysis as an analysis tool and operation and maintenance procedure when applied to large arrays. Infrared analysis of most collector systems showed temperature distributions that indicated balanced flow patterns with both the thermographs and the hand-held unit. In three significant cases, blocked or broken collector arrays, which previously had gone undetected, were discovered. Using this analysis, validation studies of large computer codes could examine collector arrays for flow patterns or blockages that could cause disagreement between actual and predicted performance. Initial operation and balancing of large systems could be accomplished without complicated sensor systems not needed for normal operations. Maintenance personnel could quickly check their systems without climbing onto the roof and without complicated sensor systems.

Eden, A.

1980-08-01T23:59:59.000Z

154

Optical waveguide solar energy system for lunar material processing  

SciTech Connect (OSTI)

This paper summarizes the study on the optical waveguide (OW) solar energy system for lunar material processing. In the OW solar energy system, solar radiation is collected by the concentrator which transfers the concentrated solar radiation to the OW transmission line consisting of low-loss optical fibers and related optical components. The OW line transmits the high intensity solar radiation to the thermal reactor of the lunar materials processing plant. Based on the results discussed in this paper the authors conclude that the OW solar energy system is a viable concept which can effectively utilize solar energy for lunar material processing.

Nakamura, T.; Senior, C.L. [Physical Sciences, Inc., Andover, MA (United States); Shoji, J.M.; Waldron, R.D. [Rockwell International Corp., Canoga Park, CA (United States). Rocketdyne Division

1995-11-01T23:59:59.000Z

155

NREL Analysis: Cost-Effective and Reliable Integration of High-Penetration Solar in the Western United States (Poster)  

SciTech Connect (OSTI)

SunShot Initiative awardee posters describing the different technologies within the four subprograms of the DOE Solar Program (Photovoltaics, Concentrating Solar Power, Soft Costs, and Systems Integration).

Lew, D.; Brinkman, G.; Ibanez, E.; Hodge, B.; Lefton, S.; Kumar, N.; Agan, D.; Jordan, G.; Venkatataman, S.

2012-07-01T23:59:59.000Z

156

Solar Leasing for Residential Photovoltaic Systems (Revised) (Fact Sheet)  

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

In the past year, the residential solar lease has received In the past year, the residential solar lease has received significant attention in the solar marketplace, primarily for its ability to leverage two key commercial tax credits for the individual homeowner. However, on January 1, 2009, the $2,000 cap on the residential investment tax credit (ITC) was lifted. As a result, the expansion of the solar lease model across the United States may be slower than antici-

157

Broadband Model Performance for an Updated National Solar Radiation Database in the United States of America: Preprint  

SciTech Connect (OSTI)

Updated review of broadband model performance in a project being done to update the existing United States National Solar Radiation Database (NSRDB).

Myers, D. R.; Wilcox, S.; Marion, W.; George, R.; Anderberg, M.

2005-09-01T23:59:59.000Z

158

Solar desalination in the southwest United States| A thermoeconomic analysis utilizing the sun to desalt water in high irradiance regions.  

E-Print Network [OSTI]

?? Water scarcity and high irradiance overlap in the southwestern United States. This thesis explores solar energy as a method to power desalination in the… (more)

Stroud, Matthew

2012-01-01T23:59:59.000Z

159

Studying the Solar System's Chemical Recipe  

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

Studying the Solar System's Chemical Recipe Print Studying the Solar System's Chemical Recipe Print To study the origins of different isotope ratios among the elements that make up today's smorgasbord of planets, moons, comets, asteroids, and interplanetary ice and dust, a team of scientists from the University of California, San Diego is using ALS Chemical Dynamics Beamline 9.0.2 to mimic radiation from the protosun when the solar system was forming. For more than three decades, Mark Thiemens, Dean of the Division of Physical Sciences at UCSD, has worked to learn how our solar system evolved. Now he and his colleagues Teresa Jackson and Subrata Chakraborty (who won the David A. Shirley Award for Outstanding Scientific Achievement at the ALS in 2011) are using ALS Beamline 9.0.2 to see if photochemistry can explain the differences in isotope ratios between elements on Earth and what's found in meteorites and interplanetary dust particles. The Chemical Dynamics Beamline generates intense beams of vacuum ultraviolet light (VUV) that can be precisely tuned to mimic the radiation from the protosun. It is powerful enough to dissociate gas molecules like carbon monoxide, hydrogen sulfide, and nitrogen, providing information about gas-phase photodynamics.

160

Studying the Solar System's Chemical Recipe  

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

Studying the Solar System's Chemical Recipe Print Studying the Solar System's Chemical Recipe Print To study the origins of different isotope ratios among the elements that make up today's smorgasbord of planets, moons, comets, asteroids, and interplanetary ice and dust, a team of scientists from the University of California, San Diego is using ALS Chemical Dynamics Beamline 9.0.2 to mimic radiation from the protosun when the solar system was forming. For more than three decades, Mark Thiemens, Dean of the Division of Physical Sciences at UCSD, has worked to learn how our solar system evolved. Now he and his colleagues Teresa Jackson and Subrata Chakraborty (who won the David A. Shirley Award for Outstanding Scientific Achievement at the ALS in 2011) are using ALS Beamline 9.0.2 to see if photochemistry can explain the differences in isotope ratios between elements on Earth and what's found in meteorites and interplanetary dust particles. The Chemical Dynamics Beamline generates intense beams of vacuum ultraviolet light (VUV) that can be precisely tuned to mimic the radiation from the protosun. It is powerful enough to dissociate gas molecules like carbon monoxide, hydrogen sulfide, and nitrogen, providing information about gas-phase photodynamics.

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


161

The Inner Solar System Characteristics of Earth  

E-Print Network [OSTI]

The Inner Solar System #12;The Earth #12;Characteristics of Earth A terrestrial, rocky planet floats on mantle · Crust is created and destroyed #12;Characteristics of Earth Today Surface: · 70% water · 30% land Atmosphere: ·77% N2 ·21% O2 ·0.1% H2O ·+Ar, CO2, Ne #12;The Dynamic Earth Molten Core

Walter, Frederick M.

162

Studying the Solar System's Chemical Recipe  

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

Studying the Solar System's Chemical Recipe Print Studying the Solar System's Chemical Recipe Print To study the origins of different isotope ratios among the elements that make up today's smorgasbord of planets, moons, comets, asteroids, and interplanetary ice and dust, a team of scientists from the University of California, San Diego is using ALS Chemical Dynamics Beamline 9.0.2 to mimic radiation from the protosun when the solar system was forming. For more than three decades, Mark Thiemens, Dean of the Division of Physical Sciences at UCSD, has worked to learn how our solar system evolved. Now he and his colleagues Teresa Jackson and Subrata Chakraborty (who won the David A. Shirley Award for Outstanding Scientific Achievement at the ALS in 2011) are using ALS Beamline 9.0.2 to see if photochemistry can explain the differences in isotope ratios between elements on Earth and what's found in meteorites and interplanetary dust particles. The Chemical Dynamics Beamline generates intense beams of vacuum ultraviolet light (VUV) that can be precisely tuned to mimic the radiation from the protosun. It is powerful enough to dissociate gas molecules like carbon monoxide, hydrogen sulfide, and nitrogen, providing information about gas-phase photodynamics.

163

Consumers Power, Inc. - Solar Energy System Rebate | Department of Energy  

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

Inc. - Solar Energy System Rebate Inc. - Solar Energy System Rebate Consumers Power, Inc. - Solar Energy System Rebate < Back Eligibility Residential Savings Category Solar Buying & Making Electricity Heating & Cooling Water Heating Maximum Rebate $3,000 for PV Program Info State Oregon Program Type Utility Rebate Program Rebate Amount SWH: $500/system PV: $500/kW Provider Consumers Power, Inc. Consumers Power, Inc. (CPI) offers rebates to its residential customers who install solar water heating systems or solar photovoltaic (PV) systems from October 1, 2012 to September 30, 2013. The rebate for solar water heaters is $500 for systems with a collector area greater than 31 square feet. Systems used for hot tubs or swimming pools are not eligible. The rebate for solar PV systems is $500 per kilowatt-DC (kW), with a maximum rebate

164

Denver Public Schools Get Solar Energy System | Department of Energy  

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

Denver Public Schools Get Solar Energy System Denver Public Schools Get Solar Energy System Denver Public Schools Get Solar Energy System November 1, 2010 - 11:22am Addthis Workers install a solar photovoltaic system on the roof of a Denver school.| Photo courtesy of Main Street Power Workers install a solar photovoltaic system on the roof of a Denver school.| Photo courtesy of Main Street Power Kevin Craft What are the key facts? Local company adds five full-time jobs to support solar panel project. Solar panels are estimated to generate 1,640,457 kWh of electricity per year. Denver Public Schools are expected to save more than $500,000 over a 20-year period . This school year, students in the Denver Public School system are getting a first-hand look at solar panel technology. Main Street Power, a solar development company based in Boulder, Colo., is

165

Denver Public Schools Get Solar Energy System | Department of Energy  

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

Denver Public Schools Get Solar Energy System Denver Public Schools Get Solar Energy System Denver Public Schools Get Solar Energy System November 1, 2010 - 11:22am Addthis Workers install a solar photovoltaic system on the roof of a Denver school.| Photo courtesy of Main Street Power Workers install a solar photovoltaic system on the roof of a Denver school.| Photo courtesy of Main Street Power Kevin Craft What are the key facts? Local company adds five full-time jobs to support solar panel project. Solar panels are estimated to generate 1,640,457 kWh of electricity per year. Denver Public Schools are expected to save more than $500,000 over a 20-year period . This school year, students in the Denver Public School system are getting a first-hand look at solar panel technology. Main Street Power, a solar development company based in Boulder, Colo., is

166

Impact of Improved Solar Forecasts on Bulk Power System Operations in ISO-NE (Presentation)  

SciTech Connect (OSTI)

The diurnal nature of solar power is made uncertain by variable cloud cover and the influence of atmospheric conditions on irradiance scattering processes. Its forecasting has become increasingly important to the unit commitment and dispatch process for efficient scheduling of generators in power system operations. This presentation is an overview of a study that examines the value of improved solar forecasts on Bulk Power System Operations.

Brancucci Martinez-Anido, C.; Florita, A.; Hodge, B.M.

2014-11-01T23:59:59.000Z

167

Concentration solar power optimization system and method of using the same  

DOE Patents [OSTI]

A system and method for optimizing at least one mirror of at least one CSP system is provided. The system has a screen for displaying light patterns for reflection by the mirror, a camera for receiving a reflection of the light patterns from the mirror, and a solar characterization tool. The solar characterization tool has a characterizing unit for determining at least one mirror parameter of the mirror based on an initial position of the camera and the screen, and a refinement unit for refining the determined parameter(s) based on an adjusted position of the camera and screen whereby the mirror is characterized. The system may also be provided with a solar alignment tool for comparing at least one mirror parameter of the mirror to a design geometry whereby an alignment error is defined, and at least one alignment unit for adjusting the mirror to reduce the alignment error.

Andraka, Charles E

2014-03-18T23:59:59.000Z

168

Everything You Wanted to Know About Solar Water Heating Systems...  

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

Everything You Wanted to Know About Solar Water Heating Systems Everything You Wanted to Know About Solar Water Heating Systems October 7, 2014 - 2:39pm Q&A What do you want to...

169

Experimental Research of an Active Solar Heating System  

E-Print Network [OSTI]

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...

Gao, X.; Li, D.

2006-01-01T23:59:59.000Z

170

Techno-economic Appraisal of Concentrating Solar Power Systems (CSP).  

E-Print Network [OSTI]

?? The diffusion of Concentrating Solar Power Systems (CSP) systems is currently taking place at a much slower pace than photovoltaic (PV) power systems. This… (more)

Gasti, Maria

2013-01-01T23:59:59.000Z

171

Tracking Solar Energy Conersion Unit Adapted For Field Assembly  

DOE Patents [OSTI]

A modular solar energy collector having elongated V-shaped side walls formed by a pair of coplanar panels for each side wall. The upper panels, occupying most of the wall area are diffusely reflective, but the lower panels are specularly reflective. A Fresnel lens, having a snap fit relation to the side walls focuses some light on the lower specularly reflective panels which direct light to the solar cells at the base of the V-shaped walls. A heat sink provides support for the two panels with two opposed, upwardly extending wings terminating in opposed linear clips located near the lengthwise seam of the coplanar panels, each clip holding two coplanar panels in parallel alignment. The clips not only provide support for the panels, but also transfer heat to the remainder of the heat sink. The clips are shaped so that edges of the panels engage each clip by a snap fit, outside of the clip in one embodiment and inside of the clip in another embodiment. End caps are also formed with structures which snap to the wall panels. Since all junctions of components snap together, the collector of the present invention is easily assembled without specialized tools. Using side walls which are only partly specularly reflective permits a large angle of acceptance, yet provides an economical wall design because the entire wall need not be specularly reflective.

Kaminar, Neil R. (Boulder Creek, CA); Ross, III, James G. (Bothell, WA); Carrie, Peter J. (Toronto, CA)

2000-02-01T23:59:59.000Z

172

Storage Systems for Solar Steam  

Science Journals Connector (OSTI)

Three different basic concepts (encapsulation, composite material and fins) for isothermal energy storage systems using phase change materials in the ... the most promising concept for the design of storage syste...

Wolf-Dieter Steinmann; Doerte Laing…

2009-01-01T23:59:59.000Z

173

Modeling of Performance, Cost, and Financing of Concentrating Solar, Photovoltaic, and Solar Heat Systems (Poster)  

SciTech Connect (OSTI)

This poster, submitted for the CU Energy Initiative/NREL Symposium on October 3, 2006 in Boulder, Colorado, discusses the modeling, performance, cost, and financing of concentrating solar, photovoltaic, and solar heat systems.

Blair, N.; Mehos, M.; Christiansen, C.

2006-10-03T23:59:59.000Z

174

Solar System tests of Ho?ava–Lifshitz gravity  

Science Journals Connector (OSTI)

...research-article Research articles 1000 162 169 138 Solar System tests of Horava-Lifshitz gravity...constraining Horava gravity at the scale of the Solar System, by considering the classical tests...classical tests of general relativity|solar system| 1. Introduction Recently, a...

2011-01-01T23:59:59.000Z

175

Proton corebeam system in the expanding solar wind: Hybrid simulations  

E-Print Network [OSTI]

Proton corebeam system in the expanding solar wind: Hybrid simulations Petr Hellinger1,2 and Pavel. Trávnícek (2011), Proton corebeam system in the expanding solar wind: Hybrid simulations, J. Geophys. Res beamcore system in the solar wind are presented. The expansion with a strictly radial magnetic field leads

California at Berkeley, University of

176

Astronomy 241: Foundations of Astrophysics I. The Solar System  

E-Print Network [OSTI]

· Over 99.9% of solar system's mass · Largely H and He · Self-regulating nuclear furnace Tuesday, AugustAstronomy 241: Foundations of Astrophysics I. The Solar System Astronomy 241 is the first part the structure and evolution of the Solar System. Prerequisites: Physics 170, Physics 272 (or concurrent

Barnes, Joshua Edward

177

Hybrid Wind and Solar Electric Systems | Department of Energy  

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

Hybrid Wind and Solar Electric Systems Hybrid Wind and Solar Electric Systems Hybrid Wind and Solar Electric Systems July 2, 2012 - 8:21pm Addthis Because the peak operating times for wind and solar systems occur at different times of the day and year, hybrid systems are more likely to produce power when you need it. Because the peak operating times for wind and solar systems occur at different times of the day and year, hybrid systems are more likely to produce power when you need it. How does it work? A small "hybrid" electric system that combines wind and solar technologies can offer several advantages over either single system. According to many renewable energy experts, a small "hybrid" electric system that combines home wind electric and home solar electric (photovoltaic or PV) technologies offers several advantages over either

178

Thermal model of solar absorption HVAC systems  

SciTech Connect (OSTI)

This paper presents a thermal model that describes the performance of solar absorption HVAC systems. The model considers the collector array, the building cooling and heating loads, the absorption chiller and the high temperature storage. Heat losses from the storage tank and piping are included in the model. All of the results presented in the paper are for an array of flat plate solar collectors with black chrome (selective surface) absorber plates. The collector efficiency equation is used to calculate the useful heat output from the array. The storage is modeled as a non-stratified tank with polyurethane foam insulation. The system is assumed to operate continuously providing air conditioning during the cooling season, space heating during the winter and hot water throughout the year. The amount of heat required to drive the chiller is determined from the coefficient of performance of the absorption cycle. Results are presented for a typical COP of 0.7. The cooling capacity of the chiller is a function of storage (generator) temperature. The nominal value is 190 F (88 C) and the range of values considered is 180 F (82 C) to 210 F (99 C). Typical building cooling and heating loads are determined as a function of ambient conditions. Performance results are presented for Sacramento, CA and Washington, D.C. The model described in the paper makes use of National Solar Radiation Data Base (NSRDB) data and results are presented for these two locations. The uncertainties in the NSRDB are estimated to be in a range of 6% to 9%. This is a significant improvement over previously available data. The model makes it possible to predict the performance of solar HVAC systems and calculate quantities such as solar fraction, storage temperature, heat losses and parasitic power for every hour of the period for which data are available.

Bergquam, J.B.; Brezner, J.M. [California State Univ., Sacramento, CA (United States). Dept. of Mechanical Engineering; [Bergquam Energy Systems, Sacramento, CA (United States)

1995-11-01T23:59:59.000Z

179

Probabilistic modelling of hybrid solar/wind power system with solar tracking system  

Science Journals Connector (OSTI)

This paper presents a probabilistic model applied to a hybrid solar-wind power system (HSWPS), which is equipped with either a one-axis or a two-axis solar tracking system. Within the framework of a case study, the potential of the developed probabilistic approach is presented, and the effect of the solar tracking systems on the annual energy gain is discussed. Specifically, the impact of a tracking system on the probability density function (PDF) of the power produced by a photovoltaic system (PVS) is evaluated through the first four moments (mean, variance, skewness and kurtosis) of a PDF. Finally, to estimate the impact of a tracking system on HSWPS energy performance, a reliability analysis is performed using the energy index of reliability (EIR), which is directly related to energy expected not supplied (EENS), given different annual load scenarios.

Giuseppe Marco Tina; Salvina Gagliano

2011-01-01T23:59:59.000Z

180

Heat Exchangers for Solar Water Heating Systems | Department of Energy  

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

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

Note: This page contains sample records for the topic "united solar systems" 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

Observed reductions of surface solar radiation at Sites in the United States and worldwide from 1961 to 1990  

E-Print Network [OSTI]

and there is room for further improvement (World Climate Research Programme, 1991). 2. All Sky Solar Radiation Here I use a new quality-tested global database of monthly mean surface solar radiation time seriesObserved reductions of surface solar radiation at Sites in the United States and worldwide from

182

Numerical Study on the Thermal Performance of a Novel Impinging Type Solar Receiver for Solar Dish-Brayton System.  

E-Print Network [OSTI]

?? An impinging type solar receiver has been designed for potential applications in a future Brayton Solar Dish System. The EuroDish system is employed as… (more)

Xu, Haoxin

2013-01-01T23:59:59.000Z

183

Optimization of a stand?alone Solar PV?Wind?DG Hybrid System for Distributed Power Generation at Sagar Island  

Science Journals Connector (OSTI)

An estimation of a stand?alone solar PV and wind hybrid system for distributed power generation has been made based on the resources available at Sagar island a remote area distant to grid operation. Optimization and sensitivity analysis has been made to evaluate the feasibility and size of the power generation unit. A comparison of the different modes of hybrid system has been studied. It has been estimated that Solar PV?Wind?DG hybrid system provides lesser per unit electricity cost. Capital investment is observed to be lesser when the system run with Wind?DG compared to Solar PV?DG.

P. C. Roy; A. Majumder; N. Chakraborty

2010-01-01T23:59:59.000Z

184

E-Print Network 3.0 - active solar systems Sample Search Results  

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

. ACTIVE SOLAR SYSTEMS Solar collectors are designed to take advan- tage of the greenhouse effect. The flat... " solar system (Figure 2). It is called active because it requires...

185

Solar system constraints on Rindler acceleration  

E-Print Network [OSTI]

We discuss the classical tests of general relativity in the presence of Rindler acceleration. Among these tests the perihelion shifts give the tightest constraints and indicate that the Pioneer anomaly cannot be caused by a universal solar system Rindler acceleration. We address potential caveats for massive test-objects. Our tightest bound on Rindler acceleration that comes with no caveats is derived from radar echo delay and yields |a|<3nm/s^2.

Sante Carloni; Daniel Grumiller; Florian Preis

2011-05-09T23:59:59.000Z

186

Organic Rankine power conversion subsystem development for the small community solar thermal power system  

SciTech Connect (OSTI)

The development and preliminary test results for an air-cooled, hermetically sealed 20 kW sub E organic Rankine cycle engine/alternator unit for use with point focussing distributed receiver solar thermal power system. A 750 F toluene is the working fluid and the system features a high speed, single-stage axial flow turbine direct-coupled to a permanent magnet alternator. Good performance was achieved with the unit in preliminary tests.

Barber, R.E.; Boda, F.P.

1982-07-01T23:59:59.000Z

187

Analysis of solar collector array systems using thermography  

SciTech Connect (OSTI)

The use of thermography to analyze large solar collector array systems under dynamic operating conditions is discussed. The research has focused on thermographic techniques and equipment to determine temperature distributions, flow patterns, and air blockages in solar collectors. The results of this extensive study, covering many sites and types of collectors, illustrate the capabilities of infrared analysis as an analysis tool and operation and maintenance procedure when applied to large arrays. Thermographic analysis of most collector systems showed temperature distributions that indicated balanced flow patterns with both the thermographs and the hand-held unit. In three significant cases, blocked or broken collector arrays, which previously had gone undetected, were discovered. Using this analysis, validation studies of large computer codes could examine collector arrays for flow patterns or blockages that could cause disagreement between actual and predicted performance. Initial operation and balancing of large systems could be accomplished without complicated sensor systems not needed for normal operations. Maintenance personnel could quickly check their systems without climbing onto the roof and without complicated sensor systems.

Eden, A.

1980-01-01T23:59:59.000Z

188

Early Solar System Chronology K.D. McKeegan  

E-Print Network [OSTI]

, and to a first approximation can be thought of as ``hand samples'' of the condensable portion of the solar nebula1.16 Early Solar System Chronology K.D. McKeegan University of California, Los Angeles, CA, USA Meteorites as Probes of Early Solar System Evolution 2 1.16.1.2 Short-Lived Radioactivity at the Origin

Reiners, Peter W.

189

Supporting Adaptive Ubiquitous Applications with the Solar System  

E-Print Network [OSTI]

Supporting Adaptive Ubiquitous Applications with the Solar System Guanling Chen and David Kotz, and computational context. We believe that there are two challenges causing this lack of ubiq- uitous applications contextual informa- tion. We propose a system infrastructure, Solar, to meet these challenges. Solar uses

Kotz, David

190

Thermal Solar Energy Systems for Space Heating of Buildings  

E-Print Network [OSTI]

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...

Gomri, R.; Boulkamh, M.

2010-01-01T23:59:59.000Z

191

As of October 17, 2012 Solar System Exploration @50  

E-Print Network [OSTI]

:45 ­ 11:45 am Panel #1: Politics and Policy in the Conduct of Solar System Exploration Panel Chair: Marcia, and Solar System Exploration Panel Chair: Heidi Hammel (Association of Universities for Research And Mars: The Soviet Planetary Exploration Enterprise 9:30 ­ 11:30 am Panel 4: Exploring the Outer Solar

192

Supply Curves for Rooftop Solar PV-Generated Electricity for the United States  

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

A0-44073 A0-44073 November 2008 Supply Curves for Rooftop Solar PV-Generated Electricity for the United States Paul Denholm and Robert Margolis Supply Curves for Rooftop Solar PV-Generated Electricity for the United States Paul Denholm and Robert Margolis Prepared under Task No. PVB7.6301 Technical Report NREL/TP-6A0-44073 November 2008 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Operated by the Alliance for Sustainable Energy, LLC Contract No. DE-AC36-08-GO28308 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

193

Special Assessment for Solar Energy Systems | Department of Energy  

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

Special Assessment for Solar Energy Systems Special Assessment for Solar Energy Systems Special Assessment for Solar Energy Systems < Back Eligibility Commercial Industrial Residential Savings Category Heating & Cooling Commercial Heating & Cooling Solar Heating Buying & Making Electricity Water Heating Maximum Rebate None Program Info State Illinois Program Type Property Tax Incentive Provider Illinois Department of Revenue Illinois offers a special assessment of solar energy systems for property-tax purposes. For property owners who register with a chief county assessment officer, solar energy equipment is valued at no more than a conventional energy system. Eligible equipment includes both active and passive solar-energy systems. The exemption is not valid for equipment that is equally usable in a conventional energy system or for components that

194

Massachusetts Middle School Goes Local for PV Solar Energy System |  

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

Middle School Goes Local for PV Solar Energy System Middle School Goes Local for PV Solar Energy System Massachusetts Middle School Goes Local for PV Solar Energy System August 13, 2010 - 11:00am Addthis New 26 kW solar energy system to be part of curriculum at Norton Middle School. | Photo courtesy of Norton Public Schools New 26 kW solar energy system to be part of curriculum at Norton Middle School. | Photo courtesy of Norton Public Schools Lindsay Gsell What are the key facts? Using Recovery Act Funding, Norton Middle School installed a 126 panel solar system. The school expects to save $6,000 in energy costs each year. Materials for solar system came from local Massachusetts companies. When the school buses pull up to Norton Middle School this year, students will see more than just their friends and teachers, they'll get a view of

195

Massachusetts Middle School Goes Local for PV Solar Energy System |  

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

Massachusetts Middle School Goes Local for PV Solar Energy System Massachusetts Middle School Goes Local for PV Solar Energy System Massachusetts Middle School Goes Local for PV Solar Energy System August 13, 2010 - 11:00am Addthis New 26 kW solar energy system to be part of curriculum at Norton Middle School. | Photo courtesy of Norton Public Schools New 26 kW solar energy system to be part of curriculum at Norton Middle School. | Photo courtesy of Norton Public Schools Lindsay Gsell What are the key facts? Using Recovery Act Funding, Norton Middle School installed a 126 panel solar system. The school expects to save $6,000 in energy costs each year. Materials for solar system came from local Massachusetts companies. When the school buses pull up to Norton Middle School this year, students will see more than just their friends and teachers, they'll get a view of

196

Solar Resource Assessment  

SciTech Connect (OSTI)

This report covers the solar resource assessment aspects of the Renewable Systems Interconnection study. The status of solar resource assessment in the United States is described, and summaries of the availability of modeled data sets are provided.

Renne, D.; George, R.; Wilcox, S.; Stoffel, T.; Myers, D.; Heimiller, D.

2008-02-01T23:59:59.000Z

197

Application of Solar Distillation Systems with Phase Change Material Storage  

Science Journals Connector (OSTI)

This chapter presents the analysis of a solar distillation system with phase change material storage system. There is always a scarcity of...

S. K. Shukla

2014-01-01T23:59:59.000Z

198

Performance of a 5 kWe Solar-only Organic Rankine Unit Coupled to a Reverse Osmosis Plant  

Science Journals Connector (OSTI)

Abstract Organic Rankine Cycle (ORC) systems are one of the most promising energy conversion technologies available for remote areas and low temperature energy sources. An ORC system works like a conventional Rankine cycle but it uses an organic compound as working fluid, instead of water. A small ORC unit coupled with a solar thermal energy system could be used to convert solar thermal energy into electricity in remote areas, offering an alternative to Photovoltaic (PV) systems to provide the energy required by desalination applications like reverse osmosis (RO). In this work an analysis of the performance of a specific solar desalination ORC system at part load operation is presented, in order to understand its behavior from a thermodynamic perspective and be able to predict the total water production with changing operation conditions. The results showed that water production is around 1.2 m3/h, and it is stable during day and night thanks to the thermal storage and only under bad irradiance circumstances the production would stop.

M. Ibarra; A. Rovira; D.C. Alarcón-Padilla; G. Zaragoza; J. Blanco

2014-01-01T23:59:59.000Z

199

Control Strategy for Wind and Solar Hybrid Generation System  

Science Journals Connector (OSTI)

Solar energy and wind energy are the two most viable renewable ... . This paper presents a control strategy for wind & solar hybrid power generating systems. If the power generation sources produce more ... strat...

Xin Gao

2011-01-01T23:59:59.000Z

200

Simulation Calculation on Solar Chimney Power Plant System  

Science Journals Connector (OSTI)

It is unpractical to establish a Solar Chimney Power Plant System (SCPPS) used to ... flow field of the SCPPS which caused by solar radiation intensity have been analyzed. The calculated ... as well as the differ...

HuiLan Huang; Hua Zhang; Yi Huang; Feng Lu

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "united solar systems" 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

Tuning energy transport in solar thermal systems using nanostructured materials  

E-Print Network [OSTI]

Solar thermal energy conversion can harness the entire solar spectrum and theoretically achieve very high efficiencies while interfacing with thermal storage or back-up systems for dispatchable power generation. Nanostructured ...

Lenert, Andrej

2014-01-01T23:59:59.000Z

202

Distributed Solar PV for Electricity System Resiliency: Policy...  

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

supply. Members of the community installed a total of 700 kW of distributed rooftop solar capacity. CES units were added at the substation and distribution circuits, along with...

203

Excise Tax Deduction for Solar- or Wind-Powered Systems  

Broader source: Energy.gov [DOE]

In Massachusetts, businesses may deduct from net income, for state excise tax purposes, expenditures paid or incurred from the installation of any "solar or wind powered climatic control unit and...

204

Solar Energy Water Desalination in the United States and Saudi Arabia  

SciTech Connect (OSTI)

Five solar energy water desalination systems are described. The systems will each deliver 6000 m3/day of desalted water from either seawater or brackish water. After the system definition study is completed in August 1981, two systems will be selected for pilot plant construction. The pilot plants will have capacities in the range of 1 00 to 400 m3/day.

Luft, W.

1981-04-01T23:59:59.000Z

205

Installation guidelines for solar heating system, single-family residence at William O'Brien State Park, Stillwater, Minnesota  

SciTech Connect (OSTI)

The Solar Heating System installer guidelines are provided for each subsystem and testing and filling the system are included. This single-family residential heating system is a solar-assisted, hydronic-to-warm-air system with solar-assisted domestic water heating. It is composed of the following major components: liquid cooled flat plate collectors; water storage tank; passive solar-fired domestic water preheater; electric hot water heater; heat pump with electric backup; solar hot water coil unit; tube-and-shell heat exchanger, three pumps, and associated pipes and valving in an energy transport module; control system; and air-cooled heat purge unit. Information is also provided on the operating procedures, controls, caution requirements, and routine and schedule maintenance. Information consists of written procedures, schematics, detail drawings, pictures and manufacturer's component data.

Not Available

1980-05-01T23:59:59.000Z

206

Solar Systems USA | Open Energy Information  

Open Energy Info (EERE)

USA USA Jump to: navigation, search 200px Name Solar Systems USA Place Atlanta, Georgia Sector Renewable Energy Product Solar Panels Year founded 2010 Website http://solarsystemsusa.net Coordinates 33.7489954°, -84.3879824° 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":33.7489954,"lon":-84.3879824,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

207

Control valve for solar heating systems  

SciTech Connect (OSTI)

A control valve for a solar heating system is disclosed. The valve has a valve body which defines four chambers disposed end to end. A valve operating rod is movable axially through all four chambers under motor control and carries a valve member for directing liquid through the valve. In one position of the valve member, incoming liquid is directed to an outlet for connection to a solar collector and liquid returning from the collector can flow through the valve body and back to the swimming pool. In the other position of the valve member, the liquid bypasses the collector and is directed back to the pool while liquid in the collector drains back into the valve body through the outlet and is removed by suction from a drain-down chamber in the valve body.

Stewart, J.M.

1981-12-29T23:59:59.000Z

208

Automatic fault detection on BIPV systems without solar irradiation data  

E-Print Network [OSTI]

BIPV systems are small PV generation units spread out over the territory, and whose characteristics are very diverse. This makes difficult a cost-effective procedure for monitoring, fault detection, performance analyses, operation and maintenance. As a result, many problems affecting BIPV systems go undetected. In order to carry out effective automatic fault detection procedures, we need a performance indicator that is reliable and that can be applied on many PV systems at a very low cost. The existing approaches for analyzing the performance of PV systems are often based on the Performance Ratio (PR), whose accuracy depends on good solar irradiation data, which in turn can be very difficult to obtain or cost-prohibitive for the BIPV owner. We present an alternative fault detection procedure based on a performance indicator that can be constructed on the sole basis of the energy production data measured at the BIPV systems. This procedure does not require the input of operating conditions data, such as solar ...

Leloux, Jonathan; Luna, Alberto; Desportes, Adrien

2014-01-01T23:59:59.000Z

209

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

SciTech Connect (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

210

Combining Solar Energy and UPS Systems.  

E-Print Network [OSTI]

?? Solar Power and Uninterruptible Power Supply (UPS) are two technologies that are growing rapidly. The demand for solar energy is mainly driven by the… (more)

Bengtsson, Tobias

2014-01-01T23:59:59.000Z

211

Gainesville Regional Utilities - Solar-Electric (PV) System Rebate Program  

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

Gainesville Regional Utilities - Solar-Electric (PV) System Rebate Gainesville Regional Utilities - Solar-Electric (PV) System Rebate Program Gainesville Regional Utilities - Solar-Electric (PV) System Rebate Program < Back Eligibility Residential Savings Category Solar Buying & Making Electricity Maximum Rebate $5,000 Program Info Start Date 10/1/2010 State Florida Program Type Utility Rebate Program Rebate Amount Solar window of 80% or more: $1.00/watt Provider Gainesville Regional Utilities '''''NOTE: Application targets for fiscal year 2013 have been met for the GRU Solar PV Rebate Program. The next round of applications are scheduled to open on October 1, 2013 pending approval of the GRU budget by the Gainesville City Commission.''''' Gainesville Regional Utilities (GRU) offers its customers a rebate to install photovoltaic (PV) systems. Systems with solar windows of 80% or

212

Effectiveness of solar water-lift system with parabolic cylindrical solar energy collector and jet pump  

Science Journals Connector (OSTI)

Formulas are presented and a computer calculation program is implemented for determining the energy efficiency of a solar water-lift system module with a parabolic...

S. F. Ergashev

2007-03-01T23:59:59.000Z

213

Predicting solar radiation fluxes for solar energy system applications  

Science Journals Connector (OSTI)

The mean daily global solar radiation flux is influenced by astronomical, climatological, geographical, geometrical, meteorological, and physical parameters. This paper deals with the study of the effects of i...

M. H. Saffaripour; M. A. Mehrabian…

2013-07-01T23:59:59.000Z

214

Southern Solar Ltd | Open Energy Information  

Open Energy Info (EERE)

Ltd Place: Offham, East Sussex, United Kingdom Sector: Solar Product: Installer of PV and solar passive hot water systems in the UK. References: Southern Solar Ltd1 This article...

215

Solar-hydrogen energy system for Pakistan  

SciTech Connect (OSTI)

A solar-hydrogen energy system has been proposed for Pakistan as the best replacement for the present fossil fuel based energy system. It has been suggested to produce hydrogen via photovoltaic-electrolysis, utilizing the available non-agricultural sunny terrain in Baluchistan region. There will be a desalination plant for sea water desalination. The area under the photovoltaic panels with the availability of water would provide suitable environment for growing some cash crops. This would change the cast useless desert land into green productive farms. In order to show the quantitative benefits of the proposed system, future trends of important energy and economical parameters have been studied with and without hydrogen introduction. The following parameters have been included: population, energy demand (fossil + hydrogen), energy production (fossil + hydrogen), gross national product, fossil energy imports, world energy prices, air pollution, quality of life, environmental savings due to hydrogen introduction, savings due to the higher utilization efficiency of hydrogen, by-product credit, agricultural income, income from hydrogen sale, photovoltaic cell area, total land area, water desalination plant capacity, capital investment, operating and maintenance cost, and total income from the system. The results indicate that adopting the solar-hydrogen energy system would eliminate the import dependency of fossil fuels, increase gross product per capita, reduce pollution, improve quality of life and establish a permanent and clean energy system. The total annual expenditure on the proposed system is less than the total income from the proposed system. The availability of water, the cash crop production, electricity and hydrogen would result in rapid development of Baluchistan, the largest province of Pakistan.

Lutfi, N.

1990-01-01T23:59:59.000Z

216

Fault Impacts on Solar Power Unit Reliability Ali M. Bazzi, Katherine A. Kim, Brian B. Johnson, Philip T. Krein, and Alejandro Dominguez-Garca  

E-Print Network [OSTI]

Fault Impacts on Solar Power Unit Reliability Ali M. Bazzi, Katherine A. Kim, Brian B. Johnson a generalized reliability model of a solar power unit (SPU) based on physical characteristics including material--photovoltaic reliability, solar power unit, reliability modeling procedure. I. INTRODUCTION Photovoltaic (PV) power

Liberzon, Daniel

217

Ohio Transit System Saves With Solar | Department of Energy  

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

Ohio Transit System Saves With Solar Ohio Transit System Saves With Solar Ohio Transit System Saves With Solar July 23, 2010 - 3:42pm Addthis METRO Regional Transit Authority of Akron, OH is installing a solar energy system such as this on the central bus barn's roof. | Energy Department Photo | METRO Regional Transit Authority of Akron, OH is installing a solar energy system such as this on the central bus barn's roof. | Energy Department Photo | Joshua DeLung What does this project do? The new PV solar energy system being installed by the METRO Regional Transit Authority of Akron, Ohio on their central bus barn roof is expected to meet 15 percent of the transit system's bus barn energy needs. Akron, OH anticipates $40,000 in annual energy savings once the project is complete. Updated Oct. 13, 2010.

218

EcoSolar Systems India Ltd | Open Energy Information  

Open Energy Info (EERE)

EcoSolar Systems India Ltd EcoSolar Systems India Ltd Jump to: navigation, search Name EcoSolar Systems (India) Ltd Place Pune, Maharashtra, India Zip 411030 Sector Solar Product Manufactures and distributes own-brand solar water heating systems, solar PV lanterns and a solar cooker. Coordinates 18.52671°, 73.8616° 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":18.52671,"lon":73.8616,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

219

Maximizing efficiency of solar-powered systems by load matching  

Science Journals Connector (OSTI)

Solar power is an important source of renewable energy for many low-power systems. Matching the power consumption level with the supply level can make a great difference in the efficiency of power utilization. This paper proposes a source-tracking power ... Keywords: load matching, photovoltaics, power management, power model, solar energy, solar-aware

Dexin Li; Pai H. Chou

2004-08-01T23:59:59.000Z

220

Solar system tests of the cosmological constant  

E-Print Network [OSTI]

We discuss the influence of the cosmological constant $\\Lambda$ on the gravitational equations of motion of bodies with arbitrary masses and eventually solve the two-body problem. Observational constraints are derived from measurements of the periastron advance in stellar systems, in particular binary pulsars and the solar system. For the latter we consider also the change in the mean motion due to $\\Lambda$. Up to now, Earth and Mars data give the best constraint, $\\Lambda \\sim 10^{-36} \\mathrm{km}^{-2}$. If properly accounting for the gravito-magnetic effect, this upper limit on $\\Lambda$ could greatly improve in the near future thanks to new data from planned or already operating space-missions. Dark matter or modifications of the Newtonian inverse-square law in the solar system are discussed as well. Variations in the $1/r^2$ behavior are considered in the form of either a possible Yukawa-like interaction or a modification of gravity of MOND type.

Philippe Jetzer; Mauro Sereno

2007-11-23T23:59:59.000Z

Note: This page contains sample records for the topic "united solar systems" 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

Optimum fixed orientations and benefits of tracking for capturing solar radiation in the continental United States  

E-Print Network [OSTI]

solar collector, Solar & Wind Technology. 4 (1987) 407-410.to the solar azimuth. While other tracking technologies such

Lave, Matthew; Kleissl, Jan

2011-01-01T23:59:59.000Z

222

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

E-Print Network [OSTI]

and Photovoltaic Solar Energy Converters,” American ChemicalNocera D. G. , 2010, “Solar Energy Supply and Storage forof Abiotic Photo-chemical Solar Energy Storage Systems,”

Coso, Dusan

2013-01-01T23:59:59.000Z

223

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

E-Print Network [OSTI]

Organometallic Frames for Solar Energy Storage, Berkeley. [Nocera D. G. , 2010, “Solar Energy Supply and Storage forof Abiotic Photo-chemical Solar Energy Storage Systems,”

Coso, Dusan

2013-01-01T23:59:59.000Z

224

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

E-Print Network [OSTI]

Nocera D. G. , 2010, “Solar Energy Supply and Storage forof Abiotic Photo-chemical Solar Energy Storage Systems,”Power Plants,” Journal of Solar Energy Engineering, 124 (2),

Coso, Dusan

2013-01-01T23:59:59.000Z

225

Chaotic Disintegration of the Inner Solar System  

E-Print Network [OSTI]

On timescales that greatly exceed an orbital period, typical planetary orbits evolve in a stochastic yet stable fashion. On even longer timescales, however, planetary orbits can spontaneously transition from bounded to unbound chaotic states. Large-scale instabilities associated with such behavior appear to play a dominant role in shaping the architectures of planetary systems, including our own. Here we show how such transitions are possible, focusing on the specific case of the long-term evolution of Mercury. We develop a simple analytical model for Mercury's dynamics and elucidate the origins of its short term stochastic behavior as well as of its sudden progression to unbounded chaos. Our model allows us to estimate the timescale on which this transition is likely to be triggered, i.e. the dynamical lifetime of the Solar System as we know it. The formulated theory is consistent with the results of numerical simulations and is broadly applicable to extrasolar planetary systems dominated by secular interact...

Batygin, Konstantin; Holman, Mathew J

2014-01-01T23:59:59.000Z

226

Water use and supply concerns for utility-scale solar projects in the Southwestern United States.  

SciTech Connect (OSTI)

As large utility-scale solar photovoltaic (PV) and concentrating solar power (CSP) facilities are currently being built and planned for locations in the U.S. with the greatest solar resource potential, an understanding of water use for construction and operations is needed as siting tends to target locations with low natural rainfall and where most existing freshwater is already appropriated. Using methods outlined by the Bureau of Land Management (BLM) to determine water used in designated solar energy zones (SEZs) for construction and operations & maintenance, an estimate of water used over the lifetime at the solar power plant is determined and applied to each watershed in six Southwestern states. Results indicate that that PV systems overall use little water, though construction usage is high compared to O&M water use over the lifetime of the facility. Also noted is a transition being made from wet cooled to dry cooled CSP facilities that will significantly reduce operational water use at these facilities. Using these water use factors, estimates of future water demand for current and planned solar development was made. In efforts to determine where water could be a limiting factor in solar energy development, water availability, cost, and projected future competing demands were mapped for the six Southwestern states. Ten watersheds, 9 in California, and one in New Mexico were identified as being of particular concern because of limited water availability.

Klise, Geoffrey Taylor; Tidwell, Vincent Carroll; Reno, Marissa Devan; Moreland, Barbara D.; Zemlick, Katie M.; Macknick, Jordan [National Renewable Energy Laboratory Golden, CO] [National Renewable Energy Laboratory Golden, CO

2013-07-01T23:59:59.000Z

227

Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States  

SciTech Connect (OSTI)

Among the available options for encouraging the increased deployment of renewable electricity, renewables portfolio standards (RPS) have become increasingly popular. The RPS is a relatively new policy mechanism, however, and experience with its use is only beginning to emerge. One key concern that has been voiced is whether RPS policies will offer adequate support to a wide range of renewable energy technologies and applications or whether, alternatively, RPS programs will favor a small number of the currently least-cost forms of renewable energy. This report documents the design of and early experience with state-level RPS programs in the United States that have been specifically tailored to encourage a wider diversity of renewable energy technologies, and solar energy in particular. As shown here, state-level RPS programs specifically designed to support solar have already proven to be an important, albeit somewhat modest, driver for solar energy deployment, and those impacts are projected to continue to build in the coming years. State experience in supporting solar energy with RPS programs is mixed, however, and full compliance with existing requirements has not been achieved. The comparative experiences described herein highlight the opportunities and challenges of applying an RPS to specifically support solar energy, as well as the importance of policy design details to ensuring that program goals are achieved.

Wiser, Ryan; Barbose, Galen; Holt, Edward

2010-10-01T23:59:59.000Z

228

Planet Formation in the Outer Solar System  

E-Print Network [OSTI]

This paper reviews coagulation models for planet formation in the Kuiper Belt, emphasizing links to recent observations of our and other solar systems. At heliocentric distances of 35-50 AU, single annulus and multiannulus planetesimal accretion calculations produce several 1000 km or larger planets and many 50-500 km objects on timescales of 10-30 Myr in a Minimum Mass Solar Nebula. Planets form more rapidly in more massive nebulae. All models yield two power law cumulative size distributions, N_C propto r^{-q} with q = 3.0-3.5 for radii larger than 10 km and N_C propto r^{-2.5} for radii less than 1 km. These size distributions are consistent with observations of Kuiper Belt objects acquired during the past decade. Once large objects form at 35-50 AU, gravitational stirring leads to a collisional cascade where 0.1-10 km objects are ground to dust. The collisional cascade removes 80% to 90% of the initial mass in the nebula in roughly 1 Gyr. This dust production rate is comparable to rates inferred for alpha Lyr, beta Pic, and other extrasolar debris disk systems.

Scott J. Kenyon

2001-12-05T23:59:59.000Z

229

Towards a Design of a Complete Solar Water Splitting System  

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

Solar Water Splitting System 1 Feb 2013 BISfuel : A team of Bisfuel researchers led by Devens Gust, Ana Moore and Tom Moore has designed and characterized an artificial...

230

Solar Radio Burst Effects on Global Positioning System Receivers .  

E-Print Network [OSTI]

??This thesis presents a series of studies investigating solar radio burst effects on Global Positioning System (GPS) receivers along with supporting instrumentation and analysis techniques.… (more)

Cerruti, Alessandro Paolo

2007-01-01T23:59:59.000Z

231

Concentrator Solar Cell Modules and Systems Developed in Japan  

Science Journals Connector (OSTI)

Dissemination of photovoltaic (PV) systems has advanced, and solar cell module production has also significantly increased in ... Japan organized by the New Energy and Industrial Technology Development Organizati...

2007-01-01T23:59:59.000Z

232

A HYBRID RECONFIGURABLE SOLAR AND WIND ENERGY SYSTEM.  

E-Print Network [OSTI]

??We study the feasibility of a novel hybrid solar-wind hybrid system that shares most of its infrastructure and components. During periods of clear sunny days… (more)

Gadkari, Sagar A.

2008-01-01T23:59:59.000Z

233

Experience with solar systems for heating swimming pools in Germany  

SciTech Connect (OSTI)

The results of the demonstration programme [open quotes]Efficient Use of Energy in Swimming Pool Construction[close quotes] has had a positive effect on the dissipation of solar systems for swimming pools. Infrared measurements show how a homogeneous flow can be achieved in the absorber field. The fact that solar systems are acceptable can be clearly in evidence that the behaviour of visitors to purely solar-heated pools with variable water temperature does not differ in principle from conventionally-heated pools with constant temperature. Economic considerations of the operation show that swimming pool solar systems are competitive with conventional heating systems.

Croy, R.; Peuser, F.A. (Zentralstelle fuer Solartechnik, Hilden (Germany))

1994-07-01T23:59:59.000Z

234

Solar pool heating system: An olympic-sized effort  

SciTech Connect (OSTI)

This article describes design and building of the Georgia Tech Aquatic Center Heliocol solar pool heating system, developed for the 1996 Olympics in Atlanta.

Sheinkopf, K.

1996-07-01T23:59:59.000Z

235

Holographic Concepts and Applications for Solar Energy Systems  

Science Journals Connector (OSTI)

In this paper the unique aspects of holographic optical elements are reviewed and put in context for application to photovoltaic and thermal solar energy systems. A holographic planar...

Kostuk, Raymond

236

Holographic Concepts and Applications for Solar Energy Systems  

Science Journals Connector (OSTI)

In this paper the unique aspects of holographic optical elements are reviewed and put in context for application to photovoltaic and thermal solar energy systems. A ...

Kostuk, Raymond

237

Design and simulation of solar absorption cooling systems.  

E-Print Network [OSTI]

??The absorption chiller modeling is then exploited in a computer tool that gives valuable information on the planning of solar cooling systems. The design of… (more)

NURZIA, GIOVANNI

2008-01-01T23:59:59.000Z

238

EIS-0416: Ivanpah Solar Electric Generating System in San Bernardino...  

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

Generating System (07-AFC-5) Project, Proposal to Construct a 400-m Megawatt Concentrated Solar Power Tower, Thermal-Electric Power Plant, San Bernardino County, California July 1,...

239

Space Dust Analysis Could Provide Clues to Solar System Origins  

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

of oxygen. Isotope analysis could help confirm that the dust originated outside the solar system, but it's a process that would destroy the precious samples. For now,...

240

The system architecting process for a solar power satellite concept.  

E-Print Network [OSTI]

??This thesis discusses the system architecting process for a Solar Power Satellite (SPS) concept.The heuristic approach allows a spectrum of concepts to be narrowed to… (more)

Bidwell, Joseph Grady

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "united solar systems" 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

A Solar Power System for High Altitude Airships.  

E-Print Network [OSTI]

??This research is intended to produce a power system suitable for an aerostat operating at 67,500 ft and powered only by solar energy. A battery… (more)

Mei, Qiang

2011-01-01T23:59:59.000Z

242

Solar Resource & Meteorological Assessment Project (SOLRMAP): Observed Atmospheric and Solar Information System (OASIS); Tucson, Arizona (Data)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The U.S. Department of Energy's National Renewable Energy Laboratory collaborates with the solar industry to establish high quality solar and meteorological measurements. This Solar Resource and Meteorological Assessment Project (SOLRMAP) provides high quality measurements to support deployment of power projects in the United States. The no-funds-exchanged collaboration brings NREL solar resource assessment expertise together with industry needs for measurements. The end result is high quality data sets to support the financing, design, and monitoring of large scale solar power projects for industry in addition to research-quality data for NREL model development. NREL provides consultation for instrumentation and station deployment, along with instrument calibrations, data acquisition, quality assessment, data distribution, and summary reports. Industry participants provide equipment, infrastructure, and station maintenance.

Wilcox, S.; Andreas, A.

243

Testing and evaluation of a solar photovoltaic flywheel energy storage system  

SciTech Connect (OSTI)

A thorough series of experimental measurements are reported that have been made on a 1/10-scale, magnetically levitated, residential solar photovoltaic (PV) flywheel energy storage system which acts as a complete interface between a solar PV array and an ac load. The overall in-out electrical storage efficiency of the flywheel unit was measured along with the power-transfer efficiencies of individual components and the system spin-down tare losses. An overall storage efficiency of 82% was measured for the flywheel storage system when operated in a utility-interactive mode.

Jarvinen, P. O.; Brench, B. L.; Hay, R. D.; Rasmussen, N. E.

1981-01-01T23:59:59.000Z

244

Solar collector for fluid heating system  

SciTech Connect (OSTI)

A solar collector for use in either an upfeed forced hot water heating system or a downfeed system features a pair of serpentine coils arranged in opposing flow relationship within a shallow insulated collector housing having a sealed glass closure panel. The two serpentine coils lie in spaced parallel planes within the housing, and the two coils are offset laterally so that their individual longitudinal loops overlap laterally by approximately one-half the width of each loop. The flow of heated fluid in each serpentine coil is controlled independently of the other coil by a temperature-responsive modulating valve connected in each coil close to the outlet end thereof within the housing. Efficiency of operation and practicality and economy of construction are featured.

Wilson, D.C.

1980-09-30T23:59:59.000Z

245

Implementation of optimum solar electricity generating system  

Science Journals Connector (OSTI)

Under the 10th Malaysian Plan the government is expecting the renewable energy to contribute approximately 5.5% to the total electricity generation by the year 2015 which amounts to 98MW. One of the initiatives to ensure that the target is achievable was to establish the Sustainable Energy Development Authority of Malaysia. SEDA is given the authority to administer and manage the implementation of the feed-in tariff (FiT) mechanism which is mandated under the Renewable Energy Act 2011. The move to establish SEDA is commendable and the FiT seems to be attractive but there is a need to create awareness on the implementation of the solar electricity generating system (SEGS). In Malaysia harnessing technologies related to solar energy resources have great potential for implementation. However the main issue that plagues the implementation of SEGS is the intermittent nature of this source of energy. The availability of sunlight is during the day time and there is a need for electrical energy storage system so that there is electricity available during the night time as well. The meteorological condition such as clouds haze and pollution affects the SEGS as well. The PV based SEGS is seems to be promising electricity generating system that can contribute towards achieving the 5.5% target and will be able to minimize the negative effects of utilizing fossil fuels for electricity generation on the environment. Malaysia is committed to Kyoto Protocol which emphasizes on fighting global warming by achieving stabilization of greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic interference with the climate system. In this paper the technical aspects of the implementation of optimum SEGS is discussed especially pertaining to the positioning of the PV panels.

2014-01-01T23:59:59.000Z

246

Influence of Dark Matter on Light Propagation in Solar System  

E-Print Network [OSTI]

We investigated the influence of dark matter on light propagation in the solar system. We assumed the spherical symmetry of spacetime and derived the approximate solution of the Einstein equation, which consists of the gravitational attractions caused by the central celestial body, i.e. the Sun, and the dark matter surrounding it. We expressed the dark matter density in the solar system in the following simple power-law form, $\\varrho(t, r) = \\rho(t)(\\ell/r)^k$, where $t$ is the coordinate time; $r$, the radius from the central body; $\\ell$, the normalizing factor; $k$, the exponent characterizing $r$-dependence of dark matter density; and $\\rho(t)$, the arbitrary function of time $t$. On the basis of the derived approximate solution, we focused on light propagation and obtained the additional corrections of the gravitational time delay and the relative frequency shift caused by the dark matter. As an application of our results, we considered the secular increase in the astronomical unit reported by Krasinsky and Brumberg (2004) and found that it was difficult to provide an explanation for the observed $d{\\rm AU}/dt = 15 \\pm 4 ~[{\\rm m/century}]$.

Hideyoshi Arakida

2009-11-17T23:59:59.000Z

247

Behavior of Bidirectional Spring Unit in Isolated Floor Systems  

E-Print Network [OSTI]

gravity based sys- tems suspension mechanisms or linear spring based systems coil springs or rubber unitsBehavior of Bidirectional Spring Unit in Isolated Floor Systems Shenlei Cui, M.ASCE1 ; Michel of bidirectional spring units used as isolators in a kind of isolated floor system, three types of characterization

Bruneau, Michel

248

The Solar System in the next millennium  

Science Journals Connector (OSTI)

...non-magnetic interactions with the solar wind (adapted from Kivelson & Russell 1995). The two panels on the right illustrate the bow shocks...of Saturn but it is sometimes in the solar wind, and field line draping seems...

1999-01-01T23:59:59.000Z

249

National Energy Modeling System (United States) | Open Energy Information  

Open Energy Info (EERE)

National Energy Modeling System (United States) National Energy Modeling System (United States) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: National Energy Modeling System (United States) Focus Area: Biomass Topics: Policy, Deployment, & Program Impact Website: www.eia.gov/oiaf/aeo/overview/ Equivalent URI: cleanenergysolutions.org/content/national-energy-modeling-system-unite Language: English Policies: "Deployment Programs,Regulations" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. DeploymentPrograms: Technical Assistance Regulations: Utility/Electricity Service Costs The National Energy Modeling System (NEMS) is a computer-based, energy-economy modelling system of the United States through 2030. NEMS

250

How are Homeowners and Businesses Paying for Solar Energy Systems? |  

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

are Homeowners and Businesses Paying for Solar Energy Systems? are Homeowners and Businesses Paying for Solar Energy Systems? How are Homeowners and Businesses Paying for Solar Energy Systems? April 29, 2011 - 11:39am Addthis Solar energy isn’t free. Someone has to pay. The question is: How are they doing it? | Photo Courtesy of the National Renewable Energy Laboratory Solar energy isn't free. Someone has to pay. The question is: How are they doing it? | Photo Courtesy of the National Renewable Energy Laboratory David Feldman Energy Analyst, Department of Energy's National Renewable Energy Laboratory We commonly think that the sun provides free energy. That's true, but photovoltaic panels and other equipment to harvest that energy aren't free. The question is: how are they paid for? U.S. residential and commercial solar system customers have historically

251

Astrophysical / Solar system Plasmas : an introduction  

E-Print Network [OSTI]

: from the Sun to Betelgeuse" Comparison of solar wind energy flux (kinetic + potential, due to mass loss

Demoulin, Pascal

252

Building Codes and Regulations for Solar Water Heating Systems | Department  

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

Building Codes and Regulations for Solar Water Heating Systems Building 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 Credit: iStockphoto Before installing a solar water heating system, you should investigate local building codes, zoning ordinances, and subdivision covenants, as well as any special regulations pertaining to the site. You will probably need a building permit to install a solar energy system onto an existing building. Not every community or municipality initially welcomes residential renewable energy installations. Although this is often due to ignorance or the comparative novelty of renewable energy systems, you must comply with existing building and permit procedures to install your system.

253

Building Codes and Regulations for Solar Water Heating Systems | Department  

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

Building Codes and Regulations for Solar Water Heating Systems Building 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 Credit: iStockphoto Before installing a solar water heating system, you should investigate local building codes, zoning ordinances, and subdivision covenants, as well as any special regulations pertaining to the site. You will probably need a building permit to install a solar energy system onto an existing building. Not every community or municipality initially welcomes residential renewable energy installations. Although this is often due to ignorance or the comparative novelty of renewable energy systems, you must comply with existing building and permit procedures to install your system.

254

Magnetic coupling in the solar system  

Science Journals Connector (OSTI)

......Bewsher Chris Davis Head of Solar and Stellar Physics at...sam@mssl.ac.uk . Solar physicist working with...Appleton Laboratory. Project Scientist for the STEREO...the complexities of the solar magnetic field, informed...own) and their moons. Energy from within the convection......

Sarah Matthews; Danielle Bewsher; Chris Davis

2009-04-01T23:59:59.000Z

255

Solar Energy Market Forecast | Open Energy Information  

Open Energy Info (EERE)

Solar Energy Market Forecast Solar Energy Market Forecast Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Solar Energy Market Forecast Agency/Company /Organization: United States Department of Energy Sector: Energy Focus Area: Solar Topics: Market analysis, Technology characterizations Resource Type: Publications Website: giffords.house.gov/DOE%20Perspective%20on%20Solar%20Market%20Evolution References: Solar Energy Market Forecast[1] Summary " Energy markets / forecasts DOE Solar America Initiative overview Capital market investments in solar Solar photovoltaic (PV) sector overview PV prices and costs PV market evolution Market evolution considerations Balance of system costs Silicon 'normalization' Solar system value drivers Solar market forecast Additional resources"

256

Spearfish High School, Sparfish, South Dakota solar energy system performance evaluation, September 1980-June 1981  

SciTech Connect (OSTI)

Spearfish High School in South Dakota contains 43,000 square feet of conditioned space. Its active solar energy system is designed to supply 57% of the space heating and 50% of the hot water demand. The system is equipped with 8034 square feet of flat plate collectors, 4017 cubic feet of rock bin sensible heat storage, and auxiliary equipment including 8 heat pumps, 6 of which are solar supplied and instrumented, air conditioning units, and natural-gas-fired boilers. Performance data are given for the system including the solar fraction, solar savings ratio, conventional fuel savings, system performance factor and solar system coefficient of performance. Insolation, solar energy utilization and operation data are also given. The performance of the collector, storage, domestic hot water and space heating subsystems, the operating energy, energy savings, and weather conditions are also evaluated. Appended are a system description, performance evaluation techniques and equations, site history, long-term weather data, sensor technology, and typical monthly data. (LEW)

Howard, B.D.

1981-01-01T23:59:59.000Z

257

United States Industrial Motor-Driven Systems Market Assessment...  

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

Motor-Driven Systems Market Assessment: Charting a Roadmap to Energy Savings for Industry United States Industrial Motor-Driven Systems Market Assessment: Charting a Roadmap to...

258

Premier Solar Systems Pvt Ltd | Open Energy Information  

Open Energy Info (EERE)

Systems Pvt Ltd Systems Pvt Ltd Jump to: navigation, search Name Premier Solar Systems Pvt Ltd Place Hyderabad, Andhra Pradesh, India Zip 500 885 Sector Solar Product Manufactures PV cells, modules, systems, solar water pumping systems, solar water heating systems and solar garden lights. Coordinates 17.6726°, 77.5971° 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":17.6726,"lon":77.5971,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

259

Solar system tests of brane world models  

E-Print Network [OSTI]

The classical tests of general relativity (perihelion precession, deflection of light, and the radar echo delay) are considered for the Dadhich, Maartens, Papadopoulos and Rezania (DMPR) solution of the spherically symmetric static vacuum field equations in brane world models. For this solution the metric in the vacuum exterior to a brane world star is similar to the Reissner-Nordstrom form of classical general relativity, with the role of the charge played by the tidal effects arising from projections of the fifth dimension. The existing observational solar system data on the perihelion shift of Mercury, on the light bending around the Sun (obtained using long-baseline radio interferometry), and ranging to Mars using the Viking lander, constrain the numerical values of the bulk tidal parameter and of the brane tension.

Christian G. Boehmer; Tiberiu Harko; Francisco S. N. Lobo

2008-02-05T23:59:59.000Z

260

Chaotic Disintegration of the Inner Solar System  

E-Print Network [OSTI]

On timescales that greatly exceed an orbital period, typical planetary orbits evolve in a stochastic yet stable fashion. On even longer timescales, however, planetary orbits can spontaneously transition from bounded to unbound chaotic states. Large-scale instabilities associated with such behavior appear to play a dominant role in shaping the architectures of planetary systems, including our own. Here we show how such transitions are possible, focusing on the specific case of the long-term evolution of Mercury. We develop a simple analytical model for Mercury's dynamics and elucidate the origins of its short term stochastic behavior as well as of its sudden progression to unbounded chaos. Our model allows us to estimate the timescale on which this transition is likely to be triggered, i.e. the dynamical lifetime of the Solar System as we know it. The formulated theory is consistent with the results of numerical simulations and is broadly applicable to extrasolar planetary systems dominated by secular interactions. These results constitute a significant advancement in our understanding of the processes responsible for sculpting of the dynamical structures of generic planetary systems.

Konstantin Batygin; Alessandro Morbidelli; Mathew J. Holman

2014-11-18T23:59:59.000Z

Note: This page contains sample records for the topic "united solar systems" 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

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...

Gao, Y.; Wang, S.

2006-01-01T23:59:59.000Z

262

Solar system constraints on multifield theories of modified dynamics  

Science Journals Connector (OSTI)

......define a conserved energy-momentum tensor...modified dynamics by Solar system phenomenology...where is the usual energy-momentum tensor...frame effects to project into the Solar system via the scalar...additional term in the energy-momentum tensor......

R. H. Sanders

2006-08-11T23:59:59.000Z

263

Controlling access to pervasive information in the "Solar" system  

E-Print Network [OSTI]

Controlling access to pervasive information in the "Solar" system Kazuhiro Minami and David Kotz Dept. of Computer Science, Dartmouth College Hanover, NH, USA 03755 {minami, dfk}@cs.dartmouth.edu http://www.cs.dartmouth.edu/~solar and enforced in a decentralized, distributed system with no central administrator or central policy maker

264

The embedded energy costs in solar energy systems  

SciTech Connect (OSTI)

The paper compares the results of net energy analyses performed for active solar thermal and photovoltaic energy systems with that of conventional power generating systems. Current U.S. solar technology commercialization programs are discussed from the viewpoint of embedded (hidden) material and resource costs.

Baron, S.

1984-08-01T23:59:59.000Z

265

FAST FORCE ALGORITHMS AND SOLAR SYSTEM INTEGRATIONS Paul Wiegert,1  

E-Print Network [OSTI]

FAST FORCE ALGORITHMS AND SOLAR SYSTEM INTEGRATIONS Paul Wiegert,1 Douglas McNeil, and Martin Duncan Department of Physics, Queen's University, Kingston, ON K7L 3N6, Canada and Hal Levison Department theoretical solar system research over the past decade. As implemented, they involve the direct computation

Wiegert, Paul

266

Modeling of a Solar Driven HD (Humidification-Dehumidification) Desalination System  

Science Journals Connector (OSTI)

Abstract The paper presents a computer code developed to simulate the operation of a low-temperature thermally driven desalination system, based on the HD process. The system is a closed air cycle unit and is based on a single-effect humidification/dehumidification technique: heated salt water is introduced into an humidifier to saturate the circulating air and then the water vapor separates in a condensation section, where fresh water production takes place. The modeling procedure allows to investigates the air and water thermodynamic properties across each component. The computer code is able to optimize the heat exchanger surfaces and the air and water mass flow rates, depending on the sea water and the heat source temperature levels. The code was used to analyze an HD desalination unit with fresh water production of about 200 liters per hour, for two different configurations: a direct solar driven scheme, where the salt water entering the HD unit is heated by a solar collector field, and an integrated cooling-desalination system driven by solar energy, where the solar collected heat is used to drive a LiBr absorption machine and then the low-temperature heat rejected by the chiller is exploited to drive the HD process. The simulation code has been integrated into the Trnsys environment to perform a transient simulation of the whole systems. The annual simulations have been carried out on an hourly basis for typical climatic conditions of Abu Dhabi (UAE).

Giuseppe Franchini; Antonio Perdichizzi

2014-01-01T23:59:59.000Z

267

Design package for solar domestic hot water system  

SciTech Connect (OSTI)

Information used to evaluate the initial design of the Elcam, Inc., Solar Domestic Hot Water System is presented. Included are such items as the system performance specification, detailed design drawings and other information. Elcam, Inc., has developed two solar heated prototype hot water systems and two heat exchangers. The hot water systems consist of the following subsystems: collector, storage, control, transport, auxiliary energy, and government-furnished Site Data Acquisition. The two systems are installed at Tempe, Arizona, and San Diego, California.

None

1980-09-01T23:59:59.000Z

268

Test and evaluation of a solar powered gas turbine system  

Science Journals Connector (OSTI)

This paper describes the test and the results of a first prototype solar powered gas turbine system, installed during 2002 in the CESA-1 tower facility at Plataforma Solar de Almería (PSA) in Spain. The main goals of the project were to develop a solar receiver cluster able to provide pressurized air of 1000 °C and solve the problems arising from the coupling of the receivers with a conventional gas turbine to demonstrate the operability of the system. The test set-up consists of the heliostat field of the CESA-1 facility providing the concentrated solar power, a pressurized solar receiver cluster of three modules of 400 kWth each which convert the solar power into heat, and a modified helicopter engine (OST3) with a generator coupled to the grid. The first test phase at PSA started in December 2002 with the goal to reach a temperature level of 800 °C at the combustor air inlet by the integration of solar energy. This objective was achieved by the end of this test phase in March 2003, and the system could be operated at 230 kWe power to grid without major problems. In the second test phase from June 2003 to August 2003 the temperature level was increased to almost 1000 °C. The paper describes the system configuration, the component efficiencies and the operation experiences of the first 100 h of solar operation of this very successful first test of a solar operated Brayton gas turbine system.

Peter Heller; Markus Pfänder; Thorsten Denk; Felix Tellez; Antonio Valverde; Jesús Fernandez; Arik Ring

2006-01-01T23:59:59.000Z

269

Increasing Community Access to Solar: Designing and Developing a Shared Solar Photovoltaic System (Fact Sheet)  

SciTech Connect (OSTI)

This document introduces the Energy Department's new Guide to Community Shared Solar: Utility, Private, and Nonprofit Project Development. The guide is designed to help those who want to develop community shared solar projects - from community organizers and advocates to utility managers and government officials - navigate the process of developing shared systems, from early planning to implementation.

Not Available

2012-06-01T23:59:59.000Z

270

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

E-Print Network [OSTI]

to be more suited to solar thermal energy sources. Airunit of solar thermal and solar electric energy from a DCS-concentrating solar systems is indeed thermal energy. There

Norwood, Zachary Mills

2011-01-01T23:59:59.000Z

271

How are Homeowners and Businesses Paying for Solar Energy Systems? |  

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

are Homeowners and Businesses Paying for Solar Energy Systems? are Homeowners and Businesses Paying for Solar Energy Systems? How are Homeowners and Businesses Paying for Solar Energy Systems? May 2, 2011 - 5:23pm Addthis David Feldman Energy Analyst, Department of Energy's National Renewable Energy Laboratory Editor's Note: This entry has been cross-posted from DOE's Energy Blog. We commonly think that the sun provides free energy. That's true, but photovoltaic panels and other equipment to harvest that energy aren't free. The question is: how are they paid for? U.S. residential and commercial solar system customers have historically paid the old-fashioned way: with cash. But the large upfront cash requirements can place solar energy systems out of reach for many utility customers. Financial markets are responding and increasingly providing

272

Solar gas turbine systems: Design, cost and perspectives  

Science Journals Connector (OSTI)

The combination of high solar shares with high conversion efficiencies is one of the major advantages of solar gas turbine systems compared to other solar-fossil hybrid power plants. Pressurized air receivers are used in solar tower plants to heat the compressed air in the gas turbine to temperatures up to 1000 °C. Therefore solar shares in the design case of 40% up to 90% can be realized and annual solar shares up to 30% can be achieved in base load. Using modern gas turbine systems in recuperation or combined cycle mode leads to conversion efficiencies of the solar heat from around 40% up to more than 50%. This is an important step towards cost reduction of solar thermal power. Together with the advantages of hybrid power plants—variable solar share, fully dispatchable power, 24 h operation without storage—solar gas turbine systems are expected to have a high potential for market introduction in the mid term view. In this paper the design and performance assessment of several prototype plants in the power levels of 1 MW, 5 MW and 15 MW are presented. Advanced software tools are used for design optimization and performance prediction of the solar tower gas turbine power plants. Detailed cost assumptions for the solarized gas turbine, the solar tower plant and further equipment as well as for operation and maintenance are presented. Intensive performance and economic analysis of the prototype plants for different locations and capacity factors are shown. The cost reduction potential through automation and remote operation is revealed.

Peter Schwarzbözl; Reiner Buck; Chemi Sugarmen; Arik Ring; Ma Jesús Marcos Crespo; Peter Altwegg; Juan Enrile

2006-01-01T23:59:59.000Z

273

Chapter 7 - Active Solar Systems in Buildings  

Science Journals Connector (OSTI)

Abstract This chapter deals with the review of solar active thermal systems. They are discussed from a point of view of different technological concepts, mode of operation, heating needs, complexity of their design, and construction. Different classifications of these systems are also presented. The focus is put on system configuration depending on its heating functions. Some consideration is given to the structure of solar heating systems, methods of energy storage, and cooperation with alternative, auxiliary, or peak heat sources, including heat pumps. Flat-plate, evacuated tube, unglazed, and some other types of solar collectors and their main components are described. Advantages and disadvantages of the main types of solar collectors are analyzed. Methods of determining energy efficiency of solar collectors and graphical interpretation of their thermal characteristics are presented in order to show how different collector types can be evaluated for their use in buildings in different weather conditions and applications. Use of photovoltaics (PV) in buildings is also considered. Physical fundamentals of the internal PV effect are presented. Technologies of solar PV cells and systems are described along with different operating modes. The stress is put on technologies applied in buildings. It is emphasized that the dual nature of building elements, with coherency between architecture and energy production (PV systems and solar heating), will be standard in solar self-energy sufficient buildings. To give a full picture of solar active systems applied in buildings, solar cooling technologies are also discussed. It is underlined that sorption cooling technologies may help in solving a problem of working fluid overheating in the collector loop and in storage encountered in solar combisystems (i.e., space heating plus hot water heating).

Dorota Chwieduk

2014-01-01T23:59:59.000Z

274

Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States  

E-Print Network [OSTI]

their property. Massachusetts Utility-Owned Solar: The GreenSolar Project Financing in New Jersey and Massachusetts NewSolar Project Financing in New Jersey and Massachusetts (

Wiser, Ryan

2010-01-01T23:59:59.000Z

275

Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States  

E-Print Network [OSTI]

that distributed solar energy resources are sited at acontribution from solar energy resources. In contrast, theof solar energy and to renewable resource diversity, more

Wiser, Ryan

2010-01-01T23:59:59.000Z

276

Using RPS Policies to Grow the Solar Market in the United States  

E-Print Network [OSTI]

and the $3 billion California Solar Initiative will ensurecome. But California is not the only market for solar in thethe global solar industry. The state of California deserves

Wiser, Ryan H

2008-01-01T23:59:59.000Z

277

Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States  

E-Print Network [OSTI]

programs – namely, the California Solar Initiative, whichsouthwest and California, utility-scale solar projects havenot subject to a solar set-aside, California’s three IOUs –

Wiser, Ryan

2010-01-01T23:59:59.000Z

278

UNIT NAME: C-637 septic System REGULATORY STATUS: AOC  

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

93 UNIT NUMBER: 189 UNIT NAME: C-637 septic System REGULATORY STATUS: AOC LOCATION: Inside plant security fence, east of the c-637 Cooling Tower Pumphouse. 50 feet wide by 100 feet...

279

Shanghai Comtec Solar Technology Ltd aka Comtec Solar System Group Ltd |  

Open Energy Info (EERE)

Comtec Solar Technology Ltd aka Comtec Solar System Group Ltd Comtec Solar Technology Ltd aka Comtec Solar System Group Ltd Jump to: navigation, search Name Shanghai Comtec Solar Technology Ltd (aka Comtec Solar System Group Ltd) Place Shanghai, Shanghai Municipality, China Zip 201300 Sector Solar Product Chinese manufacturer of monocrystalline silicon ingots and wafers for solar-use. Coordinates 31.247709°, 121.472618° 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":31.247709,"lon":121.472618,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

280

Concrete as a thermal energy storage medium for thermocline solar energy storage systems  

Science Journals Connector (OSTI)

Abstract Rising energy costs and the adverse effect on the environment caused by the burning of fossil fuels have triggered extensive research into alternative sources of energy. Harnessing the abundance of solar energy has been one of the most attractive energy alternatives. However, the development of an efficient and economical solar energy storage system is of major concern. According to the Department of Energy (DOE), the cost per kilowatt hour electric from current technologies which utilize solar energy is high, estimated at approximately $0.15–$0.20/kW helectric, while the unit cost to store the thermal energy is approximately $30.00/kW hthermal. Based on traditional means of producing electricity (through burning fossil fuels), the unit cost of electricity is $0.05–$0.06/kW h. Clearly, current solar energy technologies cannot compete with traditional forms of electricity generation. In response, the DOE has established a goal of reducing the cost of solar generated electricity to $0.05–$0.07/kW helectric and achieving thermal storage costs below $15.00/kW hthermal. Reduction in the cost of the storage medium is one step in achieving the stated goal. In this research program economical concrete mixtures were developed that resisted temperatures up to 600 °C. This temperature level represents a 50% increase over the operating temperature of current systems, which is approximately 400 °C. However, long-term testing of concrete is required to validate its use. At this temperature, the unit cost of energy stored in concrete (the thermal energy storage medium) is estimated at $0.88–$1.00/kW hthermal. These concrete mixtures, used as a thermal energy storage medium, can potentially change solar electric power output allowing production through periods of low to no insolation at lower unit costs.

Emerson John; Micah Hale; Panneer Selvam

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "united solar systems" 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

Ra Solar Systems Solutions SL | Open Energy Information  

Open Energy Info (EERE)

Ra Solar Systems Solutions SL Ra Solar Systems Solutions SL Jump to: navigation, search Name Ra Solar Systems & Solutions SL Place Madrid, Spain Zip 28033 Sector Solar Product Spanish project developer and finance arranger for large-scale solar farms; also acts as distributors for complete PV systems and components. Coordinates 40.4203°, -3.705774° 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":40.4203,"lon":-3.705774,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

282

Performance of the Second Generation Solar Heating System in the Solar House of the Eindhoven University of Technology  

Science Journals Connector (OSTI)

Summer 1981 a new solar heating system has been installed in the Solar House at the E.U.T. The principal features of the system are Philips VTR 261 evacuated tube collectors, integration of the auxiliary heate...

R. W. G. Bisschops; C. W. J. van Koppen…

1984-01-01T23:59:59.000Z

283

Installing and Maintaining a Home Solar Electric System | Department of  

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

Installing and Maintaining a Home Solar Electric System Installing and Maintaining a Home Solar Electric System Installing and Maintaining a Home Solar Electric System July 2, 2012 - 8:21pm Addthis When choosing a contractor, ask about their work record, experience, and licenses, and get more than one bid for the installation of your PV system. | Photo courtesy of Dennis Schroeder, NREL. When choosing a contractor, ask about their work record, experience, and licenses, and get more than one bid for the installation of your PV system. | Photo courtesy of Dennis Schroeder, NREL. How does it work? Making sure your home solar electric or PV system is sized, sited, and installed correctly is essential for maximizing its energy performance. As with any mechanical or electrical appliance, PV systems require routine, periodic maintenance.

284

Installing and Maintaining a Home Solar Electric System | Department of  

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

Installing and Maintaining a Home Solar Electric System Installing and Maintaining a Home Solar Electric System Installing and Maintaining a Home Solar Electric System July 2, 2012 - 8:21pm Addthis When choosing a contractor, ask about their work record, experience, and licenses, and get more than one bid for the installation of your PV system. | Photo courtesy of Dennis Schroeder, NREL. When choosing a contractor, ask about their work record, experience, and licenses, and get more than one bid for the installation of your PV system. | Photo courtesy of Dennis Schroeder, NREL. How does it work? Making sure your home solar electric or PV system is sized, sited, and installed correctly is essential for maximizing its energy performance. As with any mechanical or electrical appliance, PV systems require routine, periodic maintenance.

285

Solar passive ceiling system. Final report. [Passive solar heating system with venetian blind reflectors and latent heat storage in ceiling  

SciTech Connect (OSTI)

The construction of a 1200 square foot building, with full basement, built to be used as a branch library in a rural area is described. The primary heating source is a passive solar system consisting of a south facing window system. The system consists of: a set of windows located in the south facing wall only, composed of double glazed units; a set of reflectors mounted in each window which reflects sunlight up to the ceiling (the reflectors are similar to venetian blinds); a storage area in the ceiling which absorbs the heat from the reflected sunlight and stores it in foil salt pouches laid in the ceiling; and an automated curtain which automatically covers and uncovers the south facing window system. The system is totally passive and uses no blowers, pumps or other active types of heat distribution equipment. The building contains a basement which is normally not heated, and the north facing wall is bermed four feet high around the north side.

Schneider, A.R.

1980-01-01T23:59:59.000Z

286

Evaluation of numerical weather prediction for intra-day solar forecasting in the continental United States  

E-Print Network [OSTI]

and validation.   Solar Energy.   73:5, 307? Perez, R. , using satellite data.   Solar Energy 67:1?3, 139?150.  solar radiation.   Solar Energy  Management for Electricity 

Mathiesen, Patrick; Kleissl, Jan

2011-01-01T23:59:59.000Z

287

Solar Blind System- Solar Energy Utilization and Climate Mitigation in Glassed Buildings  

Science Journals Connector (OSTI)

Abstract In the past few decades, energy scientists have focused on “renewable energy”, and solar energy in particular. Several technologies are commercialized for utilizing solar energy in the buildings by absorbing solar radiation and converting it to heat and electricity. These technologies can be categorized into the passive and active systems. A special case is a commercial greenhouse, which can be considered a passive solar building. A greenhouse is a structure which is covered by a transparent device such as glass in order to use solar energy while controlling the temperature, humidity and other parameters according to the requirements for cultivation and protection of the particular plants. The cooling demand in the commercial greenhouses is commonly supplied by e.g. ventilation and thermal screen. In the ventilation method a portion of the absorbed solar energy will be lost through ventilation windows and by applying the solar shielding, solar radiation will be blocked. In this study, by considering the solar blind concept as an active system, PVT panels are integrated to absorb the surplus solar heat (instead of blocking) which is then stored in a thermal energy storage for supplying a portion of the greenhouse heating demand at a later time. The overall objective of this study is to assess the potential of cutting external energy demand as well as maximizing solar energy utilization in a commercial greenhouse for Northern climate condition. Thus, a feasibility assessment has been carried out, examining various system configurations with the TRNSYS tool. The results show that the heating demand for a commercial closed greenhouse with solar blind is reduced by 80%, down to 62 kwh/m2 as compared to a conventional configuration. Also the annual total useful heat gain and electricity generation by solar blind in this concept is around 20 kwh/m2 and 80kwh/m2, respectively. The generated electricity can be used for supplying the greenhouse power demand for e.g. artificial lighting and other devices. Moreover, the cooling demand in a closed greenhouse is reduced by 60% by considering the solar blind system.

Amir Vadiee; Viktoria Martin

2014-01-01T23:59:59.000Z

288

The Solar Wind-Magnetosphere-Ionosphere System  

Science Journals Connector (OSTI)

...Earth's magnetic field acts as the wires to transmit the solar wind energy to the ionosphere, where the energy is dissipated...Earth's magnetic field acts as the wires to transmit the solar wind energy to the ionosphere, where the energy is dissipated...

John G. Lyon

2000-06-16T23:59:59.000Z

289

Solar heating system at Quitman County Bank, Marks, Mississippi. Final report  

SciTech Connect (OSTI)

Information is provided on the solar heating system installed in a single story wood frame, cedar exterior, sloped roof building, the Quitman County Bank, a branch of the First National Bank of Clarksdale, Mississippi. It is the first solar system in the geographical area and has promoted much interest. The system has on-site temperature and power measurements readouts. The 468 square feet of Solaron air flat plate collectors provide for 2000 square feet of space heating, an estimated 60% of the heating load. Solar heated air is distributed to the 235 cubic foot rock storage box or to the load (space heating) by a 960 cubic feet per minute air handler unit. A 7.5 ton Carrier air-to-air heat pump with 15 kilowatts of electric booster strips serve as a back-up (auxiliary) to the solar system. Motorized dampers control the direction of airflow and back draft dampers prevent thermal siphoning of conditioned air. The system was turned on in September 1979, and acceptance testing completed in February 1980. This is a Pon Cycle 3 Project with the Government sharing $13,445.00 of the $24,921 Solar Energy System installation cost.

None

1980-06-01T23:59:59.000Z

290

Solar Self Help Inc aka Light Energy Systems | Open Energy Information  

Open Energy Info (EERE)

aka Light Energy Systems Jump to: navigation, search Name: Solar Self Help Inc. (aka Light Energy Systems) Place: Concord, California Sector: Solar Product: California-based...

291

Revised feed-in tariff for solar photovoltaic in the United Kingdom: A cloudy future ahead?  

Science Journals Connector (OSTI)

The United Kingdom (UK) started implementing a national Feed-In Tariff (FiT) mechanism on the 1 April 2010, which included specific payment tariffs for solar photovoltaic (PV) installations. However, a revised FiT rate has been put in place starting from 1 April 2012, applicable to any installations with an eligibility date of on or after 3 March 2012. This paper presents, first, an overview of solar PV installation in the UK. This followed by a general concept of the FiT in the UK before analyzing the financial impact of the new FiT rate on the consumers. Similar financial analysis is conducted with selected countries in Europe. The financial analysis investigates the total profit, the average rate of return and the payback period. It is found that the new FiT rate generates very low profit, minimum rate of return and a longer payback period, suggesting a downward trend of solar PV uptake in the future.

Firdaus Muhammad-Sukki; Roberto Ramirez-Iniguez; Abu Bakar Munir; Siti Hajar Mohd Yasin; Siti Hawa Abu-Bakar; Scott G. McMeekin; Brian G. Stewart

2013-01-01T23:59:59.000Z

292

Local Option - Solar, Wind and Biomass Energy Systems Exemption |  

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

Local Option - Solar, Wind and Biomass Energy Systems Exemption Local Option - Solar, Wind and Biomass Energy Systems Exemption Local Option - Solar, Wind and Biomass Energy Systems Exemption < Back Eligibility Agricultural Commercial Industrial Residential Savings Category Bioenergy Home Weatherization Commercial Weatherization Solar Lighting Windows, Doors, & Skylights Heating & Cooling Commercial Heating & Cooling Heating Buying & Making Electricity Swimming Pool Heaters Water Heating Wind Program Info Start Date 01/01/1991 State New York Program Type Property Tax Incentive Rebate Amount 100% exemption for 15 years (unless local jurisdiction has opted out) Provider Office of Real Property Tax Services Section 487 of the New York State Real Property Tax Law provides a 15-year real property tax exemption for solar, wind energy, and farm-waste energy

293

Nuetech Solar Systems Pvt Ltd | Open Energy Information  

Open Energy Info (EERE)

Nuetech Solar Systems Pvt Ltd Nuetech Solar Systems Pvt Ltd Jump to: navigation, search Name Nuetech Solar Systems Pvt Ltd Place Bangalore, Karnataka, India Zip 560 091 Sector Solar Product Manufacturer of solar water heaters. Coordinates 12.97092°, 77.60482° 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":12.97092,"lon":77.60482,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

294

Gadhia Solar Energy Systems Pvt Ltd GSESPL | Open Energy Information  

Open Energy Info (EERE)

Gadhia Solar Energy Systems Pvt Ltd GSESPL Gadhia Solar Energy Systems Pvt Ltd GSESPL Jump to: navigation, search Name Gadhia Solar Energy Systems Pvt Ltd. (GSESPL) Place Valsad, Gujarat, India Zip 396035 Sector Solar Product Valsad-based, solar project developers. Coordinates 20.603069°, 72.916183° 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":20.603069,"lon":72.916183,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

295

Fraunhofer Institute for Solar Energy Systems ISE | Open Energy Information  

Open Energy Info (EERE)

Solar Energy Systems ISE Solar Energy Systems ISE Jump to: navigation, search Name Fraunhofer Institute for Solar Energy Systems (ISE) Place Frieberg, Germany Zip 79110 Sector Solar Product Leading solar research institute. Coordinates 57.10788°, 12.24904° 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":57.10788,"lon":12.24904,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

296

Linear Concentrator System Basics for Concentrating Solar Power |  

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

Linear Concentrator System Basics for Concentrating Solar Power Linear Concentrator System Basics for Concentrating Solar Power Linear Concentrator System Basics for Concentrating Solar Power August 20, 2013 - 4:45pm Addthis Photo of numerous parallel rows of parabolic trough collectors tracking the sun. Cooling towers and other generator equipment are in the midst of the troughs, and two water tanks are in the background. The Solar Electric Generating Station IV power plant in California consists of many parallel rows of parabolic trough collectors that track the sun. The cooling towers can be seen with the water plume rising into the air, and white water tanks are in the background. Credit: Sandia National Laboratory / PIX 14955 Linear concentrating solar power (CSP) collectors capture the sun's energy with large mirrors that reflect and focus the sunlight onto a linear

297

Study on the Wind and Solar Hybrid Control System  

Science Journals Connector (OSTI)

In the Twelfth Five-Year Plan, a comprehensive layout has been made for the new energy industry as the representative of nuclear energy, wind, solar and so on in the future. The comprehensive utilization of renewable energy for sustainable development ... Keywords: Wind and Solar Hybrid, control system, Pulse width modulation, BOOST

Hua-wei Zhang; Nan Li

2012-12-01T23:59:59.000Z

298

Battery Power for Your Residential Solar Electric System: Better Buildings Series Solar Electric Fact Sheet  

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

ELECTRIC ELECTRIC Battery Power for Your Residential Solar Electric System A Winning Combination-Design, Efficiency, and Solar Technology A battery bank stores electricity produced by a solar electric system. If your house is not connected to the utility grid, or if you antici- pate long power outages from the grid, you will need a battery bank. This fact sheet pro- vides an overview of battery basics, including information to help you select and maintain your battery bank. Types of Batteries There are many types of batteries avail- able, and each type is designed for specific applications. Lead-acid batteries have been used for residential solar electric systems for many years and are still the best choice for this application because of their low mainte- nance requirements and cost. You may

299

High-efficiency solar dynamic space power generation system  

SciTech Connect (OSTI)

Space power technologies have undergone significant advances over the past few years, and great emphasis is being placed on the development of dynamic power systems at this time. A design study has been conducted to evaluate the applicability of a combined cycle concept-closed Brayton cycle and organic Rankine cycle coupling-for solar dynamic space power generation systems. In the concept presented in this paper (solar dynamic combined cycle), the waste heat rejected by the closed Brayton cycle working fluid is utilized to heat the organic working fluid of an organic Rankine cycle system. This allows the solar dynamic combined cycle efficiency to be increased compared to the efficiencies of two subsystems (closed Brayton cycle and organic fluid cycle). Also, for small-size space power systems (up to 50 kW), the efficiency of the solar dynamic combined cycle can be comparable with Stirling engine performance. The closed Brayton cycle and organic Rankine cycle designs are based on a great deal of maturity assessed in much previous work on terrestrial and solar dynamic power systems. This is not yet true for the Stirling cycles. The purpose of this paper is to analyze the performance of the new space power generation system (solar dynamic combined cycle). The significant benefits of the solar dynamic combined cycle concept such as efficiency increase, mass reduction, specific area-collector and radiator-reduction, are presented and discussed for a low earth orbit space station application.

Massardo, A. (Dept. di Ingegneria Energetica, Univ. di Genova, 16145 Genova (IT))

1991-08-01T23:59:59.000Z

300

Energy Department Announces $13 Million to Strengthen Local Solar Markets and Spur Solar Deployment Across the United States  

Office of Energy Efficiency and Renewable Energy (EERE)

The Energy Department today announced $13 million in funding to help communities across the country reduce market and policy barriers to solar deployment and recognize communities for taking the initiative to go solar.

Note: This page contains sample records for the topic "united solar systems" 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

United States Industrial Motor Systems Market Opportunities Assessment...  

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

Executive Summary (December 1998) More Documents & Publications United States Industrial Electric Motor Systems Market Opportunities Assessment Pulp and Paper Mills: Profiting...

302

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

E-Print Network [OSTI]

Environmental Value of Solar Thermal Systems in MicrogridsEnvironmental Value of Solar Thermal Systems in Microgridsa) ABSTRACT The addition of solar thermal and heat storage

Marnay, Chris

2010-01-01T23:59:59.000Z

303

Solar Water Heating System Maintenance and Repair | Department of Energy  

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

Water Heating System Maintenance and Repair Water Heating System Maintenance and Repair Solar Water Heating System Maintenance and Repair May 30, 2012 - 2:35pm Addthis Rooftop solar water heaters need regular maintenance to operate at peak efficiency. | Photo from iStockphoto.com Rooftop solar water heaters need regular maintenance to operate at peak efficiency. | Photo from iStockphoto.com Solar energy systems require periodic inspections and routine maintenance to keep them operating efficiently. Also, from time to time, components may need repair or replacement. You should also take steps to prevent scaling, corrosion, and freezing. You might be able to handle some of the inspections and maintenance tasks on your own, but others may require a qualified technician. Ask for a cost estimate in writing before having any work done. For some systems, it may

304

Suggested improvements to solar system maintenance based on field experience  

SciTech Connect (OSTI)

Field experience has shown that maintenance is a critical factor in determining the overall success of a solar system. This paper summarizes the field experience with the maintenance of over 30 solar installations, three of which contain more than 500 individual solar systems for residential housing. The field results show several severe problems, and an analysis indicates that a number of improvements can be made to help avoid them. These include (1) improving solar designs, (2) producing service documents, and (3) providing training for maintenance personnel. Specific technical improvements to solar designs are presented in this paper, the number and content of service documents are outlined, and suggestions for training of maintenance personnel are presented.

Johnson, D.L.; Hittle, D.C.; Joncich, D.M.

1983-06-01T23:59:59.000Z

305

Property Taxes and Solar PV Systems: Policies,  

E-Print Network [OSTI]

of the SunShot Solar Outreach Partnership: ICLEI-Local Governments for Sustainability; International City: Josh Huneycutt, Monica Andrews, and Ammar Qusaibaty, U.S. Department of Energy SunShot Initiative

306

Development of a Solar Assisted Drying System Using Double-Pass Solar Collector with Finned Absorber  

Science Journals Connector (OSTI)

The Solar Energy Research Group, Universiti Kebangsaan Malaysia, International Islamic University Malaysia and Yayasan FELDA has designed and constructed a solar assisted drying system at OPF FELDA Factory, Felda Bukit Sagu 2, Kuantan, Pahang. The drying system has a total of six double-pass solar collectors. Each collector has a length of 480 cm and a width of 120 cm. The first channel depth is 3.5 cm and the second channel depth is 7 cm. Longitudinal fins made of angle aluminium, 0.8 mm thickness were attached to the bottom surface of the absorber plate. The solar collectors are arranged as two banks of three collectors each in series. Internal manifold are used to connect the collectors. Air enters through the first channel and then through the second channel of the collector. An auxiliary heater source is installed to supply heat under unfavourable solar radiation condition. An on/off controller is used to control the startup and shutdown of the auxiliary heater. An outlet temperature of 70–75 °C can be achieved at solar radiation range of 800–900 W/m2 and flow rate of 0.12 kg/s. The average thermal efficiency of a solar collector is approximately 37%.

M S M Azmi; M Y Othman; K Sopian; M H Ruslan; Z A A Majid; A Fudholi; J M Yasin

2012-01-01T23:59:59.000Z

307

Innovative Systems for Solar Air Conditioning of Buildings  

E-Print Network [OSTI]

Solar air conditioning is an attractive technology to achieve comfortable room conditions, especially in hot and sunny climates. In particular air conditioning systems based on sorption technologies offer several advantages as they can be designed...

Kessling, W.; Peltzer, M.

2004-01-01T23:59:59.000Z

308

Webinar January 13: Highly Efficient Solar Thermochemical Reaction Systems  

Broader source: Energy.gov [DOE]

The Energy Department will present a live webinar entitled "Highly Efficient Solar Thermochemical Reaction Systems" on Tuesday, January 13, from 12:00 to 1:00 p.m. Eastern Standard Time.

309

Optical design of organic solar cell with hybrid plasmonic system  

Science Journals Connector (OSTI)

We propose a novel optical design of organic solar cell with a hybrid plasmonic system, which comprises a plasmonic cavity coupled with a dielectric core-metal shell nanosphere. From a...

Sha, Wei E I; Choy, Wallace C H; Chen, Yongpin P; Chew, Weng Cho

2011-01-01T23:59:59.000Z

310

A strategy for investigation of the outer solar system  

Science Journals Connector (OSTI)

The requirements of systematic exploration of the outer solar system have been intensively studied by a Science Advisory Group (SAG) of consulting scientists for the National Aeronautics and Space Administrati...

311

Solar system constraints on f(G) gravity models  

E-Print Network [OSTI]

We discuss solar system constraints on f(G) gravity models, where f is a function of the Gauss-Bonnet term G. We focus on cosmologically viable f(G) models that can be responsible for late-time cosmic acceleration. These models generally give rise to corrections of the form epsilon*(r/rs)^p to the vacuum Schwarzschild solution, where epsilon = H^2 rs^2 solar system constraints for a wide range of model parameters.

Antonio De Felice; Shinji Tsujikawa

2009-07-10T23:59:59.000Z

312

EVACUATED TUBE COLLECTORS SIMPLIFY SOLAR THERMAL SYSTEM LAYOUT  

Science Journals Connector (OSTI)

SUMMARY Evacuated tube collectors (ETC's) differ quite markedly in their behaviour from the more familiar flat plate solar collectors. The consequences in cost of the entire system are investigated for a typical residential dwelling, making full use of the advantages offered by ETC's. A significant saving in initial cost as well as in maintenance costs can be realised. KEYWORDS Evacuated tube collectors; solar system layout; freeze protection; overheat protection.

C.W.J. van Koppen; P. Verhaart

1986-01-01T23:59:59.000Z

313

Solar heating system installed at Jackson, Tennessee. Final report  

SciTech Connect (OSTI)

The solar energy heating system installed at the Coca-Cola Bottling Works in Jackson, Tennessee is described. The system consists of 9480 square feet of Owens-Illinois evacuated tubular solar collectors with attached specular cylindrical reflectors and will provide space heating for the 70,000 square foot production building in the winter, and hot water for the bottle washing equipment the remainder of the year. Component specifications and engineering drawings are included. (WHK)

None

1980-10-01T23:59:59.000Z

314

Demonstration Experiment for Energy Storage and Rapid Charge System for the Solar Light Rail  

Science Journals Connector (OSTI)

Abstract An application of renewable energy is expected. However, renewable energy such as solar and wind is unstable. Therefore, thermal power plants are necessary to operate solar power plants and wind turbines on commercial power supply. In this paper, a rechargeable system for renewable energy application is proposed and a demonstration experiment using rideable model railroad is reported. The electric double layer capacitor (EDLC) unit of 17.5 V - 171.4 F is charged by solar panels, and another EDLC unit of 15.0 V - 100 F mounted on the railcar is charged rapidly from EDLC unit connected to solar panels. A railcar run by charged energy on 9 meters of strait rail. Although the experiment was carried out in January–only two weeks after of the winter solstice, rapid charge was carried out 56 times and railcar ran for 9 hours a day. It was confirmed that this method–using EDLC as energy storage device and rapid charge from EDLC to EDLC–is effective through a day.

Takaki Kameya; Jamal Uddin; Hiroshi Kezuka; Genji Suzuki; Hidetoshi Katsuma

2014-01-01T23:59:59.000Z

315

Reliability analysis of solar photovoltaic system using hourly mean solar radiation data  

SciTech Connect (OSTI)

This paper presents the hourly mean solar radiation and standard deviation as inputs to simulate the solar radiation over a year. Monte Carlo simulation (MCS) technique is applied and MATLAB program is developed for reliability analysis of small isolated power system using solar photovoltaic (SPV). This paper is distributed in two parts. Firstly various solar radiation prediction methods along with hourly mean solar radiation (HMSR) method are compared. The comparison is carried on the basis of predicted electrical power generation with actual power generated by SPV system. Estimation of solar photovoltaic power using HMSR method is close to the actual power generated by SPV system. The deviation in monsoon months is due to the cloud cover. In later part of the paper various reliability indices are obtained by HMSR method using MCS technique. Load model used is IEEE-RTS. Reliability indices, additional load hours (ALH) and additional power (AP) reduces exponentially with increase in load indicates that a SPV source will offset maximum fuel when all of its generated energy is utilized. Fuel saving calculation is also investigated. Case studies are presented for Sagardeep Island in West Bengal state of India. (author)

Moharil, Ravindra M. [Department of Electrical Engineering, Yeshwantrao Chavan College of Engineering, Nagpur, Maharashtra (India); Kulkarni, Prakash S. [Department of Electrical Engineering, Visvesvaraya National Institute of Technology, South Ambazari Road, Nagpur 440011, Maharashtra (India)

2010-04-15T23:59:59.000Z

316

Dynamic Performance Study on the Solar Collector/Evaporator of Direct Expansion Solar Assisted Heat Pump Systems  

Science Journals Connector (OSTI)

A dynamic simulation model is developed for predicting performance of the solar collector/evaporator of direct expansion solar assisted heat pump systems. In this model, ... meteorological and configuration param...

Li Hong; Yang Hongxing

2009-01-01T23:59:59.000Z

317

SunShot Initiative: Integrated Solar Thermochemical Reaction System  

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

Integrated Solar Thermochemical Reaction System Integrated Solar Thermochemical Reaction System PNNL logo Photo of cylinder-shaped device with a wider, white base that slims to a metallic tip. Pacific Northwest National Laboratory is developing a prototype solar thermochemical reaction system. Pacific Northwest National Laboratory, under the 2012 SunShot Concentrating Solar Power (CSP) R&D funding opportunity announcement (FOA), is creating a new CSP method for hybridization with fossil-fuel plants. The system uses solar energy to drive a chemical reaction that produces a gas capable of offsetting the need for fossil fuels in traditional power plants. Approach The research team is working to significantly advance the technology readiness level of a CSP system based on parabolic dish concentrators and thermochemical reaction systems that provide a solar thermochemical augment of at least 20% to a chemical fuel (i.e., methane from natural gas or biogas) for use in a modified natural-gas combined-cycle (NGCC) power plant.

318

Phasor Measurement Unit Data in Power System State Estimation  

E-Print Network [OSTI]

by supervisory control and data acquisition (SCADA) devices. The incorporation of PMU measurementsPhasor Measurement Unit Data in Power System State Estimation Intermediate Project Report Power Center since 1996 PSERC #12;Power Systems Engineering Research Center Phasor Measurement Unit Data

319

Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States  

E-Print Network [OSTI]

require that solar resources are connected to the in-stateIn-state multiplier for all RPS resources, including solar;from solar energy resources. In contrast, the state’s

Wiser, Ryan

2010-01-01T23:59:59.000Z

320

Using RPS Policies to Grow the Solar Market in the United States  

E-Print Network [OSTI]

many of these state policies, solar is not expected to farereach 3,000 MW of solar from their RPS policies alone, threeHEADLINE Using RPS policies to grow the solar market in the

Wiser, Ryan H

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "united solar systems" 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

Optimum fixed orientations and benefits of tracking for capturing solar radiation in the continental United States  

E-Print Network [OSTI]

a two-axis tracking solar panel. Figure 5b: Map of theand azimuth angles for solar panels were calculated for aannual azimuth for a solar panel, and can be combined with

Lave, Matthew; Kleissl, Jan

2011-01-01T23:59:59.000Z

322

Evaluation of numerical weather prediction for intra-day solar forecasting in the continental United States  

E-Print Network [OSTI]

and validation.   Solar Energy.   73:5, 307? Perez, R. , irradiance forecasts for solar energy applications based on forecast database.   Solar Energy.   81:6, 809?812.  

Mathiesen, Patrick; Kleissl, Jan

2011-01-01T23:59:59.000Z

323

Rural Electrification Through Solar and Wind Hybrid System: A Self Sustained Grid Free Electric Power Source  

Science Journals Connector (OSTI)

In India, more than 200 million people live in rural areas without access to grid-connected power. A convenient & cost-effective solution would be hybrid power systems which can reduce dependency on grid supply, improve reliability. For a typical domestic load a solar –wind hybrid system is designed with charge controller to charge a conventional battery. To optimize system efficiency, a simple algorithm is developed for system sizing. Total cost of unit is calculated using life cycle cost analysis and payback peri

Vadirajacharya; P.K. Katti

2012-01-01T23:59:59.000Z

324

Fitting random stable solar systems to Titius-Bode laws  

E-Print Network [OSTI]

Simple ``solar systems'' are generated with planetary orbital radii r distributed uniformly random in log(r) between 0.2 and 50 AU. A conservative stability criterion is imposed by requiring that adjacent planets are separated by a minimum distance of k Hill radii, for values of k ranging from 1 to 8. Least-squares fits of these systems to generalized Bode laws are performed, and compared to the fit of our own Solar System. We find that this stability criterion, and other ``radius-exclusion'' laws, generally produce approximately geometrically spaced planets that fit a Titius-Bode law about as well as our own Solar System. We then allow the random systems the same exceptions that have historically been applied to our own Solar System. Namely, one gap may be inserted, similar to the gap between Mars and Jupiter, and up to 3 planets may be ``ignored'', similar to how some forms of Bode's law ignore Mercury, Neptune, and Pluto. With these particular exceptions, we find that our Solar System fits significantly better than the random ones. However, we believe that this choice of exceptions, designed specifically to give our own Solar System a better fit, gives it an unfair advantage that would be lost if other exception rules were used. We conclude that the significance of Bode's law is simply that stable planetary systems tend to be regularly spaced; this conclusion could be strengthened by the use of more stringent methods of rejecting unstable solar systems, such as long-term orbit integrations.

Wayne Hayes; Scott Tremaine

1997-10-10T23:59:59.000Z

325

Lightweight diaphragm mirror module system for solar collectors  

DOE Patents [OSTI]

A mirror module system is provided for accurately focusing solar radiation on a point or a line as defined by an array of solar collectors. Each mirror module includes a flexible membrane stretched over a frame in a manner similar to that of a drum or a trampoline and further includes a silvered glass or plastic mirror for forming an optical reflecting surface. The configuration of the optical reflecting surface is variably adjustable to provide for the accurate focusing of the solar energy on a given collector array, e.g., a point or a linear array arrangement. The flexible mirror-membrane combination is lightweight to facilitate installation and reduce system cost yet structurally strong enough to provide for the precise focusing of the incident solar radiation in a semi-rigid reflector system in which unwanted reflector displacement is minimized.

Butler, B.L.

1984-01-01T23:59:59.000Z

326

Trade-off between collector area, storage volume, and building conservation in annual-storage solar-heating systems  

SciTech Connect (OSTI)

Annual storage is used with active solar heating systems to permit storage of summertime solar heat for winter use. The results of a comprehensive computer simulation study of the performance of active solar heating systems with long-term hot water storage are presented. A unique feature of this study is the investigation of systems used to supply backup heat to passive solar and energy-conserving buildings, as well as to meet standard heating and hot water loads. Findings show that system output increases linearly as storage volume increases, up to the point where the storage tank is large enough to store all heat collected in summer. This point, the point of unconstrained operation, is the likely economic optimum. Unlike diurnal storage systems, annual storage systems show only slightly diminished efficiency as system size increases. Annual storage systems providing nearly 100% solar space heat may cost the same or less per unit heat delivered as a 50% diurnal solar system. Also in contrast to diurnal systems, annual storage systems perform efficiently in meeting the load of a passive or energy-efficient building.

Sillman, S.

1981-04-01T23:59:59.000Z

327

Optimal Efficiency of a Solar Pond and a Rankine Cycle System  

Science Journals Connector (OSTI)

The optimal efficiency of a solar pond — Rankine cycle system is found analytically. The optimum for...

M. H. Cobble; A. R. Shouman

1987-01-01T23:59:59.000Z

328

Quality assurance of solar thermal systems with the ISFH-Input/Output-Procedure  

E-Print Network [OSTI]

. Supplementary sensors may be necessary for some special solar systems (e. g. solar systems with several storagesQuality assurance of solar thermal systems with the ISFH- Input/Output-Procedure Peter Paerisch/Output-Controllers for in situ and automatic function control of solar thermal systems that were developed within the research

329

Solar heating and cooling system installed at Leavenworth, Kansas. Final report  

SciTech Connect (OSTI)

The solar heating and cooling system installed at the headquarters of Citizens Mutual Savings Association in Leavenworth, Kansas, is described in detail. The project is part of the U.S. Department of Energy's solar demonstration program and became operational in March, 1979. The designer was TEC, Inc. Consulting Engineers, Kansas City, Missouri and contractor was Norris Brothers, Inc., Lawrence, Kansas. The solar system is expected to furnish 90 percent of the overall heating load, 70 percent of the cooling load and 100 percent of the domestic hot water load. The building has two floors with a total of 12,000 square feet gross area. The system has 120 flat-plate liquid solar panels with a net area of 2200 square feet. Five, 3-ton Arkla solar assisted absorption units provide the cooling, in conjunction with a 3000 gallon chilled water storage tank. Two, 3000 gallon storage tanks are provided with one designated for summer use, whereas both tanks are utilized during winter.

Not Available

1980-06-01T23:59:59.000Z

330

Using RPS Policies to Grow the Solar Market in the United States  

E-Print Network [OSTI]

basis, then the solar targets in New Mexico, Arizona, Newand New Mexico, as well as areas where the solar resource is

Wiser, Ryan H

2008-01-01T23:59:59.000Z

331

Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States  

E-Print Network [OSTI]

New Mexico significantly exceeds those states’ solar set-New Mexico, Colorado, and Nevada), with its robust solarwith solar set-asides (Delaware, Maryland, New Mexico, Ohio)

Wiser, Ryan

2010-01-01T23:59:59.000Z

332

Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States  

E-Print Network [OSTI]

fact that solar capacity growth outside of California hasfact that solar capacity growth outside of California hassolar capacity, only three states (Colorado, Nevada, and California,

Wiser, Ryan

2010-01-01T23:59:59.000Z

333

Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States  

E-Print Network [OSTI]

the financing of solar energy projects specifically. In Newchallenges for solar energy projects in restructuredsolar energy, these issues can be particularly acute, given the smaller project

Wiser, Ryan

2010-01-01T23:59:59.000Z

334

A Scheduling Algorithm for Consistent Monitoring Results with Solar Powered High-Performance Wireless Embedded Systems  

E-Print Network [OSTI]

A Scheduling Algorithm for Consistent Monitoring Results with Solar Powered High but critical task for solar powered wireless high power embedded systems. Our algorithm relies on an energy

Simunic, Tajana

335

Correlation Between Geographically Dispersed Concentrating Solar Power and Demand in the United States  

SciTech Connect (OSTI)

Correlations between the electricity generated by concentrating solar thermal power (CSP) plants, as well as cross-correlations between CSP, wind power and electricity demand, have significant impacts on decisions for how much and where to build utility-scale CSP capacity, the optimal amount of thermal storage in the CSP plants, reserve capacity needed to back-up the system, as well as the expected levels of curtailed renewable power. Accurately estimating these correlations is vital to performing detailed analyses of high renewable penetration scenarios. This study quantifies the degree of correlation between geographically dispersed CSP, as well as the correlation between CSP and wind power, and CSP and electricity demand in 356 discrete regions in the contiguous US. Correlations are calculated using hourly data on an annual basis. Maps of the correlations will be presented to illustrate the degree of correlation between solar power and the demand it is serving, as well as the synergies between the negatively-correlated wind power and solar power serving the same region.

Mowers, M.; Helm, C.; Blair, N.; Short, W.

2010-01-01T23:59:59.000Z

336

Concentrating Solar Power Thermal Storage System Basics | Department of  

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

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

337

Modeling and Simulation of a Solar Assisted Desiccant Cooling System  

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

Modeling and Simulation of a Solar Assisted Desiccant Cooling System Modeling and Simulation of a Solar Assisted Desiccant Cooling System Speaker(s): Chadi Maalouf Date: December 2, 2004 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Peng Xu Increased living standards and high occupants comfort demands lead to a growth in air conditioning market. This results in high energy consumption and high CO2 emissions. For these reasons, the solar desiccant cooling system is proposed as an alternative to traditional air conditioning systems. This system comprises a desiccant wheel containing Lithium Chloride in tandem with a rotating heat exchanger and two humidifiers on both supply and return air. The required regeneration temperature for the desiccant wheel varies between 40oC and 70oC which makes possible the use

338

Identifying Challenging Operating Hours for Solar Intergration in the NV Energy System  

SciTech Connect (OSTI)

Abstract-- In this paper, the ability of the Nevada (NV) Energy generation fleet to meet its system balancing requirements under different solar energy penetration scenarios is studied. System balancing requirements include capacity, ramp rate, and ramp duration requirements for load following and regulation. If, during some operating hours, system capability is insufficient to meet these requirements, there is certain probability that the balancing authority’s control and reliability performance can be compromised. These operating hours are considered as “challenging” hours. Five different solar energy integration scenarios have been studied. Simulations have shown that the NV Energy system will be potentially able to accommodate up to 942 MW of solar photovoltaic (PV) generation. However, the existing generation scheduling procedure should be adjusted to make it happen. Fast-responsive peaker units need to be used more frequently to meet the increasing ramping requirements. Thus, the NV Energy system operational cost can increase. Index Terms—Solar Generation, Renewables Integration, Balancing Process, Load Following, Regulation.

Etingov, Pavel V.; Lu, Shuai; Guo, Xinxin; Ma, Jian; Makarov, Yuri V.; Chadliev, Vladimir; Salgo, Richard

2012-05-09T23:59:59.000Z

339

Solar heating system at Security State Bank, Starkville, Mississippi. Final report  

SciTech Connect (OSTI)

Information is provided on the Solar Energy Heating System (airtype) installed at the branch bank building, northwest corner of Highway 12 and Spring Street, Starkville, Mississippi. This installation was completed in June, 1979. The 312 square feet of Solaron flat plate air collectors provide for 788 square feet of space heating, an estimated 55 percent of the heating load. Solar heated air is distributed to the 96 cubic foot steel cylinder, which contains two inch diameter rocks. An air handler unit moves the air over the collector and into the steel cylinder. Four motorized dampers and two gravity dampers are also part of the system. A Solaron controller which has sensors located at the collectors, rock storage, and at the return air, automatically controls the system. Auxiliary heating energy is provided by electric resistance duct heaters. This project is part of the US Department of Energy's Solar Demonstration Program with the government sharing $14,201 of the $17,498 solar energy system installation cost. This system was acceptance tested February, 1980, and the demonstration period ends in 1985.

None

1980-08-01T23:59:59.000Z

340

Norbornadiene-quadricyclane system in the photochemical conversion and storage of solar energy  

Science Journals Connector (OSTI)

Norbornadiene-quadricyclane system in the photochemical conversion and storage of solar energy ... Photoswitchable Molecular Rings for Solar-Thermal Energy Storage ... Photoswitchable Molecular Rings for Solar-Thermal Energy Storage ...

Constantine Philippopoulos; Dimitrios Economou; Constantine Economou; John Marangozis

1983-12-01T23:59:59.000Z

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


341

Heat Transfer Behaviors of Thermal Energy Storages for High Temperature Solar Systems  

Science Journals Connector (OSTI)

Solar energy is an important alternative energy source that will likely be utilized in ... One main limiting factor in the application of solar energy is its cyclic time dependence. Therefore, solar systems requi...

A. Andreozzi; B. Buonomo; O. Manca…

2013-01-01T23:59:59.000Z

342

Techniques for Maximizing Efficiency of Solar Energy Harvesting Systems (Invited Paper)  

E-Print Network [OSTI]

Techniques for Maximizing Efficiency of Solar Energy Harvesting Systems (Invited Paper) Pai H requiring battery replacement. This paper ex- amines technical issues with solar energy harvesting. First power point tracking, energy harvest- ing, solar panel, photovoltaic cell, supercapacitor, ultracapac

Shinozuka, Masanobu

343

SolarPower Restoration Systems Inc | Open Energy Information  

Open Energy Info (EERE)

SolarPower Restoration Systems Inc SolarPower Restoration Systems Inc Jump to: navigation, search Name SolarPower Restoration Systems Inc Place Seminole, Florida Zip 33772 Sector Solar Product SolarPower Restoration Systems is pursuing Building Integrated Photovoltaics (BIPV) systems and large scale Photovoltaic Power (PV) Array Systems over concrete and other construction surfaces. Coordinates 32.726625°, -102.645054° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.726625,"lon":-102.645054,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

344

Proposal for an Adsorption Solar-Driven Air-Conditioning Unit for Public Offices  

E-Print Network [OSTI]

C, respectively. The C.O.P in both cases was about 0.08. Wang et al. [13] studied a different approach to increase the overall efficiency of the adsorption icemaker, who joined a solar water heater and an icemaker in the same machine. This machine used... the pair Activated carbon-methanol and had 2 m2 of evacuated tube collectors to warm 60 kg of water up to 900C. The daily ice production was about 10 kg when the insolation was about 22 MJm-2. A similar system was studied by Wang et al. [14] who assumed...

Elsamni, O. A.; Sahmarani, K.J.; Obied, F. K.

2010-01-01T23:59:59.000Z

345

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

E-Print Network [OSTI]

thermal absorption solar photo- storage chiller thermalbetween solar thermal collection and storage systems and CHPimpact of solar thermal and heat storage on CO 2 emissions

Marnay, Chris

2010-01-01T23:59:59.000Z

346

Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System with Thermal Storage  

E-Print Network [OSTI]

1980, but its thermal solar and storage systems received achiller. A 30 m heat storage tank solar decouples heatfacility with thermal storage and solar- assisted HVAC for

Mammoli, Andrea

2014-01-01T23:59:59.000Z

347

Small solar (thermal) water-pumping system  

SciTech Connect (OSTI)

A small solar (thermal) water pump phototype was tested. The pump works on an organic Rankine cycle using refrigerant R113. The design of the pump is described. Detailed temperature and pressure measurements of the working fluid for different operating conditions are performed. The behaviour of the cycle is analysed to get a clear picture of the thermodynamic process. Power-characteristic curves are obtained by a systematic variation of water temperature, pumping head and heat input. 10 refs., 13 figs., 2 tabs.

Spindler, K.; Hahne, E. [Universitaet Stuttgart (Germany)] [Universitaet Stuttgart (Germany); Chandwalker, K. [Stiletto Engineers, Hyderabad (India)] [Stiletto Engineers, Hyderabad (India)

1996-07-01T23:59:59.000Z

348

Solar  

Science Journals Connector (OSTI)

With sharp drop in costs for photovoltaic and solar thermal processes, solar energy has become more attractive alternative ... Almost half the total was earmarked for PV and solar thermal projects. ...

WARD WORTHY

1991-06-17T23:59:59.000Z

349

Analysis of the Potential Applications of Solar Termal and Photovoltaic Systems for Northwest Vista College  

E-Print Network [OSTI]

the following RE technologies as viable: ground source heat pump (GSHP) systems, closed loop solar thermal system and photovoltaic (PV)....

Ugursal, A.; Martinez, J.; Baltazar, J. C.; Zilbershtein, G.

2013-01-01T23:59:59.000Z

350

Solar cooling systems for climate change mitigation: A review  

Science Journals Connector (OSTI)

Abstract The impact of global warming and an increase in the indoor cooling equipments using energy sources other than conventional energy have become very attractive because they can reduce consumption of fossil fuels as well as harmful emissions in to the environment. The solar energy is one of the readily available forms of renewable energy which can be used to operate the cooling equipments depending on the geographical location of the area where solar cooling system needs to be installed. The effectiveness of solar cooling also needs to be evaluated based on various performance indicating parameters. However, different types of solar collectors also need to be evaluated in order to find out their feasibility for cooling applications. Thus in this article review of different types of solar cooling technologies have been carried out. The study reveals that evacuated tube collectors are best option for solar cooling where as desiccant cooling helps in improving the indoor air quality. Also, thermal energy storage and ejector based solar cooling efficiently improves the performance besides energy saving.

S. Anand; A. Gupta; S.K. Tyagi

2015-01-01T23:59:59.000Z

351

Active charge/passive discharge solar heating systems: thermal analysis  

SciTech Connect (OSTI)

The performance of active charge/passive discharge solar space-heating systems is analyzed. This type of system combines liquid-cooled solar collector panels with a massive integral storage component that passively heats the building interior by radiation and free convection. The TRNSYS simulation program is used to evaluate system performance and to provide input for the development of a simplified analysis method. This method, which provides monthly calculations of delivered solar energy, is based on Klein's Phi-bar procedure and data from hourly TRNSYS simulations. The method can be applied to systems using a floor slab, a structural wall, or a water tank as the storage component. Important design parameters include collector area and orientation, building heat loss, collector and heat-exchanger efficiencies, storage capacity, and storage to room coupling.

Swisher, J.

1981-01-01T23:59:59.000Z

352

Performance contracting for parabolic trough solar thermal systems  

SciTech Connect (OSTI)

Several applications of solar energy have proven viable in the energy marketplace, due to competitive technology and economic performance. One example is the parabolic trough solar collectors, which use focused solar energy to maximize efficiency and reduce material use in construction. Technical improvements are complemented by new business practices to make parabolic trough solar thermal systems technically and economically viable in an ever widening range of applications. Technical developments in materials and fabrication techniques reduce production cost and expand applications from swimming pool heating and service hot water, to higher-temperature applications such as absorption cooling and process steam. Simultaneously, new financing mechanisms such as a recently awarded US Department of Energy (DOE) Federal Energy Management Program (FEMP) indefinite quantity Energy Savings Performance Contract (Super ESPC) facilitate and streamline implementation of the technology in federal facilities such as prisons and military bases.

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

1997-12-31T23:59:59.000Z

353

Inovateus Solar | Open Energy Information  

Open Energy Info (EERE)

Inovateus Solar Inovateus Solar Jump to: navigation, search Logo: Inovateus Solar Name Inovateus Solar Address 19890 State Line Rd. Place South Bend, Indiana Zip 46637 Sector Solar Product Indiana-based PV systems integrator focusing on the commercial market. Inovateus also operates a string of dealerships distributing solar modules around the US. References Inovateus Solar[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! Inovateus Solar is a company located in South Bend, Indiana . Inovateus Solar is a distributor and integrator of solar electric solutions. Headquartered in South Bend, Indiana, Ind. Inovateus Solar has completed 80MW of solar installations in the Midwest and across the United States in 2012. Since 2004, the company has been working closely with the

354

STATEMENT OF CONSIDERATIONS REQUEST BY UNITED SOLAR SYSTEMS CORPORATIO...  

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

to Subcontractor or its assignee and one-half inuring to the Government. WAIVER ACTION - ABSTRACT W(A)-95-004 REOUESTOR SUBCONTRACT SCOPE OF RATIONALE FOR DECISION DISPOSITION...

355

STATEMENT OF CONSIDERATIONS REQUEST BY UNITED SOLAR SYSTEMS CORPORATIO...  

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

Contractor will be given written notice of the intention to terminate -5- WAIVER ACTION - ABSTRACT W(A)-94-020 REQUESTOR CONTRACT SCOPE OF WORK RATIONALE FOR DECISION DISPOSITION...

356

Analysis of off-grid hybrid wind turbine/solar PV water pumping systems  

Science Journals Connector (OSTI)

While many remote water pumping systems exist (e.g. mechanical windmills, solar photovoltaic, wind-electric, diesel powered), few combine both the wind and solar energy resources to possibly improve the reliability and the performance of the system. In this paper, off-grid wind turbine (WT) and solar photovoltaic (PV) array water pumping systems were analyzed individually and combined as a hybrid system. The objectives were to determine: (1) advantages or disadvantages of using a hybrid system over using a WT or a solar PV array alone; (2) if the WT or solar PV array interfered with the output of the other; and (3) which hybrid system was the most efficient for the location. The WT used in the analysis was rated at 900 W alternating current (AC). There were three different solar PV arrays analyzed, and they were rated at 320, 480, and 640 W direct current (DC). A rectifier converted the 3-phase variable voltage AC output from the WT to DC before combining it with the solar PV array DC output. The combined renewable energies powered a single helical pump. The independent variable used in the hybrid WT/PV array analysis was in units of W/m2. The peak pump efficiency of the hybrid systems at Bushland, TX occurred for the 900 W WT combined with the 640 W PV array. The peak pump efficiencies at a 75 m pumping depth of the hybrid systems were: 47% (WT/320 W PV array), 51% (WT/480 W PV array), and 55% (WT/640 W PV array). Interference occurred between the WT and the different PV arrays (likely due to voltage mismatch between WT and PV array), but the least interference occurred for the WT/320 W PV array. This hybrid system pumped 28% more water during the greatest water demand month than the WT and PV systems would have pumped individually. An additional controller with a buck/boost converter is discussed at end of paper for improvement of the hybrid WT/PV array water pumping system.

Brian D. Vick; Byron A. Neal

2012-01-01T23:59:59.000Z

357

Solar heating and domestic hot water system installed at Kansas City, Fire Station, Kansas City, Missouri. Final report  

SciTech Connect (OSTI)

This document is the final report of the solar energy heating and hot water system installed at the Kansas City Fire Station, Number 24, 2309 Hardesty Street, Kansas City, Missouri. The solar system was designed to provide 47 percent of the space heating, 8800 square feet area and 75 percent of the domestic hot water (DHW) load. The solar system consists of 2808 square feet of Solaron, model 2001, air, flat plate collector subsystem, a concrete box storage subsystem which contains 1428 cubic feet of 1/2 inch diameter pebbles weighing 71 1/2 tons, a DHW preheat tank, blowers, pumps, heat exchangers, air ducting, controls and associated plumbing. Two 120-gallon electric DHW heaters supply domestic hot water which is preheated by the solar system. Auxiliary space heating is provided by three electric heat pumps with electric resistance heaters and four 30-kilowatt electric unit heaters. There are six modes of system operation. This project is part of the Department of Energy PON-1 Solar Demonstration Program with DOE cost sharing $154,282 of the $174,372 solar system cost. The Final Design Review was held March 1977, the system became operational March 1979 and acceptance test was completed in September 1979.

None

1980-07-01T23:59:59.000Z

358

Passive solar heating systems design. Final report  

SciTech Connect (OSTI)

In 1979 Dynamic Homes submitted a winning proposal in a Department of Energy passive and hybrid solar manufactured housing competition in the modular construction category. A set of preliminary designs for various housing types (ramblers, split entries, split levels, and two stories) were developed. The split entry designs seemed most feasible. They provided a good product at a price that could be marketable. It was decided to proceed with the split entry designs and three models were developed - two single-family and one duplex. Plans and descriptions are presented.

Not Available

1984-01-01T23:59:59.000Z

359

Fraunhofer Institute for Solar Energy Systems (ISE) | Open Energy  

Open Energy Info (EERE)

Solar Energy Systems (ISE) Solar Energy Systems (ISE) Jump to: navigation, search Name Fraunhofer Institute for Solar Energy Systems (ISE) Place Freiburg, Germany Website http://www.ise.fraunhofer.de/ Coordinates 47.9971865°, 7.8537668° 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":47.9971865,"lon":7.8537668,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

360

Inauguration of Headquarters' Solar Energy System | Department of Energy  

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

Inauguration of Headquarters' Solar Energy System Inauguration of Headquarters' Solar Energy System Inauguration of Headquarters' Solar Energy System September 9, 2008 - 3:20pm Addthis Remarks As Prepared for Secretary Bodman Good morning and welcome to you all. This is a great day for the Department of Energy. As America's largest energy consumer, the U.S. government has the responsibility and the opportunity to lead the way to a cleaner, more efficient, more affordable and more secure energy future. In January 2007 President Bush issued an Executive Order calling on all federal agencies to reduce energy intensity, or consumption per square foot, by 30 percent. That order also calls for the percentage of new renewable sources in each agency's energy supply to be increased and asked agencies to put renewable energy generation projects into operation on

Note: This page contains sample records for the topic "united solar systems" 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

Electrostatic cleaning system for removal of sand from solar panels  

Science Journals Connector (OSTI)

Abstract An improved cleaning system has been developed that uses electrostatic force to remove sand from the surface of solar panels. A single-phase high voltage is applied to parallel wire electrodes embedded in the cover glass plate of a solar panel. It has been demonstrated that more than 90% of the adhering sand is repelled from the surface of the slightly inclined panel after the cleaning operation. The performance of the system was further improved by improving the electrode configuration and introducing natural wind on the surface of the panel, even when the deposition of sand on the panel is extremely high. The power consumption of this system is virtually zero. This technology is expected to increase the effective efficiency of mega solar power plants constructed in deserts at low latitudes.

Hiroyuki Kawamoto; Takuya Shibata

2015-01-01T23:59:59.000Z

362

Inauguration of Headquarters' Solar Energy System | Department of Energy  

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

Inauguration of Headquarters' Solar Energy System Inauguration of Headquarters' Solar Energy System Inauguration of Headquarters' Solar Energy System September 9, 2008 - 3:20pm Addthis Remarks As Prepared for Secretary Bodman Good morning and welcome to you all. This is a great day for the Department of Energy. As America's largest energy consumer, the U.S. government has the responsibility and the opportunity to lead the way to a cleaner, more efficient, more affordable and more secure energy future. In January 2007 President Bush issued an Executive Order calling on all federal agencies to reduce energy intensity, or consumption per square foot, by 30 percent. That order also calls for the percentage of new renewable sources in each agency's energy supply to be increased and asked agencies to put renewable energy generation projects into operation on

363

Homeowners Guide to Financing a Grid-Connected Solar Electric System (Brochure), Solar Energy Technologies Program (SETP)  

Broader source: Energy.gov [DOE]

This guide provides an overview of the financing options that may be available to homeowners who are considering installing a solar electric system on their house.

364

Environmental Assessment and Metrics for Solar: Case Study of SolFocus Solar Concentrator Systems  

E-Print Network [OSTI]

investment metric for solar technologies is discussed as afresnel concentrator solar technology in 2005 [13], one ofone installed to the grid; solar technology installed at the

Reich-Weiser, Corinne; Dornfeld, David; Horne, Steve

2008-01-01T23:59:59.000Z

365

Tax Credit for Solar Energy Systems on Residential Property (Personal) |  

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

Personal) Personal) Tax Credit for Solar Energy Systems on Residential Property (Personal) < Back Eligibility Residential Savings Category Solar Buying & Making Electricity Heating & Cooling Commercial Heating & Cooling Heating Water Heating Maximum Rebate $12,500 per installed system; 1 installed system per residence Program Info Start Date 1/1/2008 Expiration Date 12/31/2017 State Louisiana Program Type Personal Tax Credit Rebate Amount 50% of the first $25,000 of the cost of each system Leased systems installed after December 31, 2013: 38% of the first $25,000 of the cost of each system Provider LA Department of Revenue '''''Note: HB 705 of 2013 made several significant changes to this tax credit. Among other changes, wind energy systems are no longer eligible,

366

Tax Credit for Solar Energy Systems on Residential Property (Corporate) |  

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

Corporate) Corporate) Tax Credit for Solar Energy Systems on Residential Property (Corporate) < Back Eligibility Commercial Residential Savings Category Solar Buying & Making Electricity Heating & Cooling Commercial Heating & Cooling Heating Water Heating Maximum Rebate $12,500 per installed system; 1 installed system per residence Program Info Start Date 1/1/2008 Expiration Date 12/31/2017 State Louisiana Program Type Corporate Tax Credit Rebate Amount 50% of the first $25,000 of the cost of each system Leased systems installed after December 31, 2013: 38% of the first $25,000 of the cost of each system Provider LA Department of Revenue '''''Note: HB 705 of 2013 made several significant changes to this tax credit. Among other changes, wind energy systems are no longer eligible,

367

Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States  

E-Print Network [OSTI]

modified its pre-existing Solar Loan Program through whichdate. PSE&G’s current Solar Loan II Program is approved forsolar set-aside by the state’s competitive electricity suppliers. In addition to these loan

Wiser, Ryan

2010-01-01T23:59:59.000Z

368

Evaluation of Various Methods for Estimating Global Solar Radiation in the Southeastern United States  

SciTech Connect (OSTI)

Global solar radiation Rg is an important input for crop models to simulate crop responses. Because the scarcity of long and continuous records of Rg is a serious limitation in many countries, Rg is estimated using models. For crop-model application, empirical Rg models that use commonly measured meteorological variables, such as temperature and precipitation, are generally preferred. Although a large number of models of this kind exist, few have been evaluated for conditions in the United States. This study evaluated the performances of 16 empirical, temperature- and/or precipitation-based Rg models for the southeastern United States. By taking into account spatial distribution and data availability, 30 locations in the region were selected and their daily weather data spanning eight years obtained. One-half of the data was used for calibrating the models, and the other half was used for evaluation. For each model, location-specific parameter values were estimated through regressions. Models were evaluated for each location using the root-mean-square error and the modeling efficiency as goodness-of-fit measures. Among the models that use temperature or precipitation as the input variable, the Mavromatis model showed the best performance. The piecewise linear regression�¢����based Wu et al. model (WP) performed best not only among the models that use both temperature and precipitation but also among the 16 models evaluated, mainly because it has separate relationships for low and high radiation levels. The modeling efficiency of WP was from ~5% to more than 100% greater than those of the other models, depending on models and locations.

Woli, Prem; Paz, Joel O.

2011-12-23T23:59:59.000Z

369

Direct coupling of a solar-hydrogen system in Mexico  

Science Journals Connector (OSTI)

The scope of this article is to show the initial results obtained in the interconnection of a 2.7 kW solar panel system with a solid polymer electrolyte (SPE) electrolyzer. The Non-Conventional Energies Department (ENC) at the Electrical Research Institute (IIE) considers that the storage of this intermittent energy by a chemical element such as hydrogen can be advantageous for certain applications. One of the arguments is that unlike traditional battery systems, hydrogen presents the great advantage of not discharging its energy content as long as it is not used. The solar-hydrogen (S-H) system proposed consists of a commercial electrolyzer stack by Proton Energy Systems and a photovoltaic (PV) solar system of 36 panels (75 W each) of monocrystalline silicon (Siemens) interconnected in a configuration for 2.7 kW power at 48 V DC . The complete electrolyzer (stack plus auxiliaries) has a maximum capacity of 1000 lN / h of hydrogen with a power energy consumption of 8 kVA ( 220 V AC , 32 A) and uses a stack of 25 cells of SPE with an energy consumption of 5.6 kW. We present voltage, current and energy consumption of the electrolyzer as a whole system and of the stack alone, as well as hydrogen quantification for the Hogen 40 operating in laboratory. These results allowed us to estimate the possibilities of coupling the electrolyzer stack alone, i.e. no auxiliaries nor power conditioning, with the solar PV system. Results such as I – E curves of the solar PV system obtained at different irradiances and temperatures, as well as I – E curve of SPE electrolyzer stack, gave direction for confirming that PV system configuration was sufficiently good to have the electrolyzer stack working near the maximum power point at a good range of irradiances ( ? 600– 800 W / m 2 ).

L.G. Arriaga; W. Martínez; U. Cano; H. Blud

2007-01-01T23:59:59.000Z

370

Sustainable feasibility of solar photovoltaic powered street lighting systems  

Science Journals Connector (OSTI)

Abstract In the last few years, due to soaring fuel prices and gas emissions, renewable energy technologies have been suggested as the power source for infrastructures. The interest in solar photovoltaic (PV) assisted street lighting systems stems from the fact that they are sustainable and environmentally friendly compared to conventional energy powered systems. The present paper investigates and compares the economic feasibility of two types of systems: islanded and grid-connected system, for the street lighting systems in Hunan Province, China. Based on two options of solar panel materials, a simulation model of the system is developed for economic, technical and environmental feasibility. The comprehensively sustainability feasibility of these systems is conducted taking into account the cost, energy generation, CO2 emissions and renewable fraction. Radar plot is employed to integrate all the sustainability indicators into a general indicator, which presents system’s sustainability as a real number in the interval [0, 2]. Results show that for street lighting systems of all the cities, single crystal panel has a larger number of annual electricity generation, less emissions and higher environmental performance, but is more expansive than polycrystalline. It is also found that when the feed-in tariff higher than 1.27 CNY/kW h, the cost of energy (COE) of the solar powered lighting systems is less than a pure grid powered system. This will incite the use of solar PV in infrastructures. Through comparing the scores of sustainability, it is found that the Loudi system has the highest feasibility while the Yongzhou system has the lowest in the province.

Gang Liu

2014-01-01T23:59:59.000Z

371

Optimum fixed orientations and benefits of tracking for capturing solar radiation in the continental United States  

E-Print Network [OSTI]

Mexico, and along the Pacific Coastline. A due south azimuth would suggest that equal amounts of solar

Lave, Matthew; Kleissl, Jan

2011-01-01T23:59:59.000Z

372

Radioisotope electric propulsion of sciencecraft to the outer solar system and near-interstellar space  

SciTech Connect (OSTI)

Recent results are presented in the study of radioisotope electric propulsion as a near-term technology for sending small robotic sciencecraft to the outer Solar System and near-interstellar space. Radioisotope electric propulsion (REP) systems are low-thrust, ion propulsion units based on radioisotope electric generators and ion thrusters. Powerplant specific masses are expected to be in the range of 100 to 200 kg/kW of thrust power. Planetary rendezvous missions to Pluto, fast missions to the heliopause (100 AU) with the capability to decelerate an orbiter for an extended science program and prestellar missions to the first gravitational lens focus of the Sun (550 AU) are investigated.

Noble, R.J.

1998-08-01T23:59:59.000Z

373

Environmental Assessment and Metrics for Solar: Case Study of SolFocus Solar Concentrator Systems  

E-Print Network [OSTI]

of solar-thermal electricity gen- eration,” Solar Energy,Solar Thermal Wind Coal CC Gas Turbine Nuclear Reference EnergyEnergy pay- back time - a key number for the assessment of thermal solar

Reich-Weiser, Corinne; Dornfeld, David; Horne, Steve

2008-01-01T23:59:59.000Z

374

Review and perspectives on Life Cycle Analysis of solar technologies with emphasis on building-integrated solar thermal systems  

Science Journals Connector (OSTI)

Abstract Building-Integrated (BI) solar thermal are systems which are integrated into the building, are a new tendency in the building sector and they provide multiple advantages in comparison with the Building-Added (BA) solar thermal configurations. The present investigation is a critical review about Life Cycle Analysis (LCA) studies of solar systems. Emphasis is given on the BI solar thermal installations. Studies about BA configurations and systems which produce electrical (or electrical/thermal) energy are also presented in order to provide a more complete overview of the literature. The influence of the BI solar thermal systems on building environmental profile is also examined. Critical issues such as ongoing standardization and environmental indicators are discussed. The results reveal that there is a gap in the field of LCA about real BI solar thermal (and solar thermal/electrical) installations. Thus, there is a need for more LCA studies which examine the BI solar thermal system itself and/or in conjunction with the building. Active systems which could provide energy for the building would be interesting to be studied. Investigations about the influence of the BI solar thermal systems on building life-cycle performance could also provide useful information in the frame of a more sustainable built environment.

Chr. Lamnatou; D. Chemisana; R. Mateus; M.G. Almeida; S.M. Silva

2015-01-01T23:59:59.000Z

375

Meridian Energy Systems Meridian Solar | Open Energy Information  

Open Energy Info (EERE)

Solar Solar Jump to: navigation, search Name Meridian Energy Systems (Meridian Solar) Place Austin, Texas Zip 78744 Product Meridian installs commercial and residential PV systems for clients primarily in Texas, but the company plans to expand its national portfolio. Coordinates 30.267605°, -97.742984° 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":30.267605,"lon":-97.742984,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

376

E-Print Network 3.0 - annual cycle solar Sample Search Results  

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

is clouds... Ch.2 Solar Energy to Earth and the Seasons The Solar System, Sun, and Earth Solar Energy: From... s 1 light-year (ly) 9.5 trillion km Light year is a unit of...

377

Optimization in solar heating/photovoltaic systems. Master's thesis  

SciTech Connect (OSTI)

This thesis is a design of an alternative system which may provide heating to the Naval Postgraduate School swimming pool. Particularly, it is a solar heating/photovoltaic system designed for a better efficiency and less cost of installation and maintenance. Principles of heat transfer, control and fluid dynamics theory are used for the determination of this heating system elements. The feasibility of its installation and use is analyzed.

Vourazelis, D.G.

1990-12-01T23:59:59.000Z

378

Solar One Beam Characterization System design description and requirements document  

SciTech Connect (OSTI)

A comprehensive description is provided for the Solar One Beam Characterization System. The principal uses of this system are to provide an automatic measurement of heliostat tracking errors and the optical quality of the reflected image. Measured tracking errors are used to determine bias values for the heliostat control system which compensates for the errors. Detailed descriptions are provided of the hardware, software, supporting analysis, operational sequences, and the fundamental principles involved.

Blackmon, J.B.

1986-10-01T23:59:59.000Z

379

Asola Advanced and Automotive Solar Systems GmbH | Open Energy Information  

Open Energy Info (EERE)

Asola Advanced and Automotive Solar Systems GmbH Asola Advanced and Automotive Solar Systems GmbH Jump to: navigation, search Name Asola Advanced and Automotive Solar Systems GmbH Place Erfurt, Germany Zip D-99428 Sector Solar Product German manufacturer of PV modules and spherical solar sun roofs for the automotive industry. References Asola Advanced and Automotive Solar Systems GmbH[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Asola Advanced and Automotive Solar Systems GmbH is a company located in Erfurt, Germany . References ↑ "Asola Advanced and Automotive Solar Systems GmbH" Retrieved from "http://en.openei.org/w/index.php?title=Asola_Advanced_and_Automotive_Solar_Systems_GmbH&oldid=34237

380

SolarBridge Technologies formerly SmartSpark Energy Systems | Open Energy  

Open Energy Info (EERE)

SolarBridge Technologies formerly SmartSpark Energy Systems SolarBridge Technologies formerly SmartSpark Energy Systems Jump to: navigation, search Name SolarBridge Technologies (formerly SmartSpark Energy Systems) Place Austin, Texas Zip 78731 Sector Solar Product Developing a micro-inverter for residential solar panels, and charge equalisers to improve life for battery-powered equipment. References SolarBridge Technologies (formerly SmartSpark Energy Systems)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. SolarBridge Technologies (formerly SmartSpark Energy Systems) is a company located in Austin, Texas . References ↑ "SolarBridge Technologies (formerly SmartSpark Energy Systems)" Retrieved from "http://en.openei.org/w/index.php?title=SolarBridge_Technologies_formerly_SmartSpark_Energy_Systems&oldid=351355"

Note: This page contains sample records for the topic "united solar systems" 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

Second Law Analysis of a Solar Methane Reforming System  

Science Journals Connector (OSTI)

Abstract In this paper, we present the results of a Second Law analysis of a highly efficient, solar thermochemical reaction system for the production of syngas using micro- and meso-channel process technology. The evaluation includes the initial conversion of solar energy/exergy into physical energy/exergy and its subsequent conversion into chemical energy/exergy through the catalytic, endothermic reforming reaction, including quantifications of exergy destruction for components and the overall system. Possible applications include the combustion of the product syngas in a hybrid, solar/natural gas power plant, providing an efficient solar augment to the natural gas fuel; the thermochemical storage of solar energy, as part of an open or closed-cycle storage process; the production of hydrogen for use in fuel cells and for other purposes; and the production of synthetic fuels such as methanol or long-chain hydrocarbons. The analyses show that the overall process is exergetically-efficient and consistent with First Law and economic analyses. Finally, opportunities for improving the exergetic efficiency of the process are identified and discussed

Robert Wegeng; Richard Diver; Paul Humble

2014-01-01T23:59:59.000Z

382

P50/P90 Analysis for Solar Energy Systems Using the System Advisor Model: Preprint  

SciTech Connect (OSTI)

To secure competitive financing for a solar energy generation project, the economic risk associated with interannual solar resource variability must be quantified. One way to quantify this risk is to calculate exceedance probabilities representing the amount of energy expected to be produced by a plant. Many years of solar radiation and metereological data are required to determine these values, often called P50 or P90 values for the level of certainty they represent. This paper describes the two methods implemented in the National Renewable Energy Laboratory's System Advisor Model (SAM) to calculate P50 and P90 exceedance probabilities for solar energy projects. The methodology and supporting data sets are applicable to photovoltaic, solar water heating, and concentrating solar power (CSP) systems.

Dobos, A. P.; Gilman, P.; Kasberg, M.

2012-06-01T23:59:59.000Z

383

Design and Implementation of Tracking System for Dish Solar Thermal Energy Based on Embedded System  

Science Journals Connector (OSTI)

Solar thermal energy has lots of advantages compare with photovoltage ... and stability can’t satisfy the requirements of thermal energy system. This paper gives a design and implementation of tracking system for...

Jian Kuang; Wei Zhang

2012-01-01T23:59:59.000Z

384

Solar-assisted heat pump – A sustainable system for low-temperature water heating applications  

Science Journals Connector (OSTI)

Abstract Direct expansion solar assisted heat pump systems (DX-SAHP) have been widely used in many applications including water heating. In the DX-SAHP systems the solar collector and the heat pump evaporator are integrated into a single unit in order to transfer the solar energy to the refrigerant. The present work is aimed at studying the use of the DX-SAHP for low temperature water heating applications. The novel aspect of this paper involves a detailed long-term thermo-economic analysis of the energy conservation potential and economic viability of these systems. The thermal performance is simulated using a computer program that incorporates location dependent radiation, collector, economic, heat pump and load data. The economic analysis is performed using the life cycle cost (LCC) method. Results indicate that the DX-SAHP water heaters systems when compared to the conventional electrical water heaters are both economical as well as energy conserving. The analysis also reveals that the minimum value of the system life cycle cost is achieved at optimal values of the solar collector area as well as the compressor displacement capacity. Since the cost of SAHP system presents a barrier to mass scale commercialization, the results of the present study indicating that the SAHP life cycle cost can be minimized by optimizing the collector area would certainly be helpful in lowering, if not eliminating, the economic barrier to these systems. Also, at load temperatures higher than 70 °C, the performance of the single stage heat pump degrades to the extent that its cost and efficiency advantages over the electric only system are lost.

S.K. Chaturvedi; V.D. Gagrani; T.M. Abdel-Salam

2014-01-01T23:59:59.000Z

385

Concentrating Solar Power Tower System Basics | Department of Energy  

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

Concentrating Solar Power Tower System Basics Concentrating Solar Power Tower System Basics Concentrating Solar Power Tower System Basics August 20, 2013 - 5:06pm Addthis In power tower concentrating solar power systems, numerous large, flat, sun-tracking mirrors, known as heliostats, focus sunlight onto a receiver at the top of a tall tower. A heat-transfer fluid heated in the receiver is used to generate steam, which, in turn, is used in a conventional turbine generator to produce electricity. Some power towers use water/steam as the heat-transfer fluid. Other advanced designs are experimenting with molten nitrate salt because of its superior heat-transfer and energy-storage capabilities. Individual commercial plants can be sized to produce up to 200 megawatts of electricity. Illustration of a power tower power plant. Sunlight is shown reflecting off a series of heliostats surrounding the tower and onto the receiver at the top of the tower. The hot heat-transfer fluid exiting from the receiver flows down the tower, into a feedwater reheater, and then into a turbine, which generates electricity that is fed into the power grid. The cool heat-transfer fluid exiting the turbine flows into a steam condenser to be cooled and sent back up the tower to the receiver.

386

Break-Even Cost for Residential Solar Water Heating in the United States: Key Drivers and Sensitivities  

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

Break-even Cost for Residential Break-even Cost for Residential Solar Water Heating in the United States: Key Drivers and Sensitivities Hannah Cassard, Paul Denholm, and Sean Ong Technical Report NREL/TP-6A20-48986 February 2011 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 1617 Cole Boulevard Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Break-even Cost for Residential Solar Water Heating in the United States: Key Drivers and Sensitivities Hannah Cassard, Paul Denholm, and Sean Ong Prepared under Task No. SS10.2110 Technical Report

387

On the use of Cherenkov Telescopes for outer Solar system body occultations  

Science Journals Connector (OSTI)

......and constrain models of Solar system dynamics (e...distant reaches of the Solar system, our ability...objects in the outer Solar system is . Objects larger...VERITAS) 2 and the High Energy Stereoscopic System...telescope, we first project their positions on to......

Brian C. Lacki

2014-01-01T23:59:59.000Z

388

The first disaggregated solar atlas of Djibouti: a decision-making tool for solar systems integration in the energy scheme  

E-Print Network [OSTI]

network and the use of classical energy resources presents economical and environmental problems. As many power systems using renewable energies, including solar systems, in order to overcome power supply the total yearly energy consumption of the country in 2005. With the first solar atlas of Djibouti

Paris-Sud XI, Université de

389

Soiling losses for solar photovoltaic systems in California  

E-Print Network [OSTI]

additional solar energy could be harvested through panelsolar energy modeled from SAW ( ), the daily (relative) DC solar conversion efficiency ( ) for the solar panels

Mejia, Felipe A; Kleissl, Jan

2013-01-01T23:59:59.000Z

390

Soiling losses for solar photovoltaic systems in California  

E-Print Network [OSTI]

Utilities Commission California Solar Initiative ProgramCalifornia. Report to the California Solar Initiative RD&DItron, Inc. , CPUC California Solar Initiative 2010 Impact

Mejia, Felipe A; Kleissl, Jan

2013-01-01T23:59:59.000Z

391

Design Considerations for Solar Energy Harvesting Wireless Embedded Systems  

E-Print Network [OSTI]

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

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

2005-01-01T23:59:59.000Z

392

Exergetic optimization of solar collector and thermal energy storage system  

Science Journals Connector (OSTI)

This paper deals with the exergetic optimization of a solar thermal energy system. This consists of a solar collector (SC) and a rectangular water storage tank (ST) that contains a phase change material (PCM) distributed in an assembly of slabs. The study takes into account both conduction and convection heat transfer mode for water in the SC, and also the phase change process for the PCM in the ST. An analytical solution for the melting process in the PCM is also presented. The results of the study are compared with previous experimental data, confirming the accuracy of the model. Results of a numerical case study are presented and discussed.

F. Aghbalou; F. Badia; J. Illa

2006-01-01T23:59:59.000Z

393

SYSTEM OPTIMIZTION OF HOT WATER CONCENTRATED SOLAR THERMOELECTRIC GENERATION  

E-Print Network [OSTI]

In this report, we describe the design of a concentrated solar thermoelectric (TE) system which can provide both electricity and hot water. Today’s thermoelectric materials have a relatively low efficiency (~6 % for temperature difference across the thermoelement on the order of 300 o C). However since thermoelectrics don’t need their cold side to be near room temperature, (in another word, one can chose the particular thermoelectric material to match to the operational temperature) it is possible to use the waste heat to provide hot water and this makes the overall efficiency of the combined system to be quite high. A key factor in the optimization of the thermoelectric module is the thermal impedance matching with the incident solar radiation, and also with the hot water heat exchanger on the cold side of the thermoelectric module. We have developed an analytic model for the whole system and optimized each component in order to minimize the material cost. TE element fill factor is found to be an important parameter to optimize at low solar concentrations (generated per mass of the thermoelectric elements. Similarly the co-optimization of the microchannel heat exchanger and the TE module can be used to minimize the amount of material in the heat exchanger and the pumping power required for forced convection liquid cooling. Changing the amount of solar concentration, changes the input heat flux and this is another parameter that can be optimized in order to reduce the cost of heat exchanger (by size), the tracking requirement and the whole system. A series of design curves for different solar concentration are obtained. It is shown that the overall efficiency of the system can be more than 80 % at 200x concentration which is independent of the material ZT (TE figure-of-merit). For a material with ZThot~0.9, the electrical conversion efficiency is ~10%. For advanced materials with ZThot ~ 2.8, the electrical conversion efficiency could reach ~21%. 1.

Kazuaki Yazawa; Ali Shakouri

394

Integrating Solar PV in Utility System Operations  

E-Print Network [OSTI]

normal distribution. Bonneville Power Administration BPA2009 BPA separately quantifies following reserve andand system operators). BPA picks a single reserve quantity

Mills, A.

2014-01-01T23:59:59.000Z

395

Integrating Solar PV in Utility System Operations  

E-Print Network [OSTI]

System Operator combined cycle Control Performance Standardstart-up times such as combined cycle plants. However, we do4 steam turbines, 9 combined cycle, and 41 combustion

Mills, A.

2014-01-01T23:59:59.000Z

396

Predicting the Long-Term Behavior of a Micro-Solar Power System JAEIN JEONG, Cisco Systems  

E-Print Network [OSTI]

35 Predicting the Long-Term Behavior of a Micro-Solar Power System JAEIN JEONG, Cisco Systems DAVID CULLER, University of California, Berkeley Micro-solar power system design is challenging because it must address long-term system behavior under highly variable solar energy conditions and consider a large space

California at Berkeley, University of

397

Analysis of advanced solar hybrid desiccant cooling systems for buildings  

SciTech Connect (OSTI)

This report describes an assessment of the energy savings possible from developing hybrid desiccant/vapor-compression air conditioning systems. Recent advances in dehumidifier design for solar desiccant cooling systems have resulted in a dehumidifier with a low pressure drop and high efficiency in heat and mass transfer. A recent study on hybrid desiccant/vapor compression systems showed a 30%-80% savings in resource energy when compared with the best conventional systems with vapor compression. A system consisting of a dehumidifier with vapor compression subsystems in series was found to be the simplest and best overall performer.

Schlepp, D.; Schultz, K.

1984-10-01T23:59:59.000Z

398

Customer concerns about uncertainty and willingness to pay in leasing solar power systems  

Science Journals Connector (OSTI)

Although solar power systems are considered as one of ... about uncertainty and willingness to pay for leasing solar power systems. Conjoint analysis method is used to find part worth utilities and estimate gaps ...

L. H. Shih; T. Y. Chou

2011-06-01T23:59:59.000Z

399

Development and Application of Engineering-Scale Solar Water Heater System Assisted by Heat Pump  

Science Journals Connector (OSTI)

An engineering-scale solar water heater system assisted by heat pump was developed based on ... . The subunits of modularized system include vacuum solar energy collectors, air source heat pump, ... Energy source...

Xiufeng Gao; Shiyu Feng; Wei Hu…

2009-01-01T23:59:59.000Z

400

Experimental investigation on system with combination of ground-source heat pump and solar collector  

Science Journals Connector (OSTI)

This paper presents the heating performance and energy distribution of a system with the combination of ground-source heat pump and solar collector or a solar-assisted ground-source heat pump system (SAGSHPS) by ...

Tao Hu ? ?; Jialing Zhu ???; Wei Zhang ? ?

2013-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "united solar systems" 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

Bimodal solar system based on a ultra-high-temperature TEC  

SciTech Connect (OSTI)

The paper considers an ecological, solar, bimodal system with ultra-high temperature thermionic energy converter (TEC). The solar bimodal Space Electric Propulsion System (SEPS) characteristics are presented. {copyright} {ital 1996 American Institute of Physics.}

Ogloblin, B.G.; Kirillov, E.Y.; Klimov, A.V.; Shalaev, A.I.; Shumov, D.P. [Central Design Bureau of Machine Building, Krasnogvardeyskaya Square 3, St. Petersburg, (Russia) 195272; Ender, A.Y.; Kuznetsov, V.I.; Sitnov, V.I. [Ioffe Physico-Technical Institute, Politekhnicheskaya St. 26, St. Petersburg, (Russia) 194021

1996-03-01T23:59:59.000Z

402

Study of the Overall Efficiency of a 7 pkw Solar Photovoltaic Pumpng System at Mugombwa (Rwanda)  

Science Journals Connector (OSTI)

The solar pumping system installed since 1985 by the ... is powered by a photovoltaic array of 132 pannels of 52 peak watt each. Our concern ... efficiency of the system by measuring both the solar global radiati...

Prosper Mpawenayo

1991-01-01T23:59:59.000Z

403

Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System with Thermal Storage  

E-Print Network [OSTI]

Optimised Scheduling of a Solar-Assisted HVAC System withA. Mammoli. Modeling of a solar-assisted HVAC system withOPTIMISED SCHEDULING OF A SOLAR-ASSISTED HVAC SYSTEM WITH

Mammoli, Andrea

2014-01-01T23:59:59.000Z

404

Sub-Hourly Impacts of High Solar Penetrations in the Western United States: Preprint  

SciTech Connect (OSTI)

This paper presents results of analysis on the sub-hourly impacts of high solar penetrations from the Western Wind and Solar Integration Study Phase 2. Extreme event analysis showed that most large ramps were due to sunrise and sunset events, which have a significant predictability component. Variability in general was much higher in the high-solar versus high-wind scenario. Reserve methodologies that had already been developed for wind were therefore modified to take into account the predictability component of solar variability.

Lew, D.; Brinkman, G.; Ibanez, E.; Hummon, M.; Hodge, B. M.; Heaney, M.; King, J.

2012-09-01T23:59:59.000Z

405

Application of a solar desiccant/collector system for water recovery from atmospheric air  

Science Journals Connector (OSTI)

An integrated desiccant/solar collector system for production of fresh water from atmospheric air is described. The solar driven system provided about 1.5 l of fresh water per square meter per day. The system involves the absorption of water vapor from ambient air during the night and simultaneous desiccant regeneration and water vapor condensation during the day. To enhance the mass transfer surface, a thick corrugated layer of cloth was used as a bed to carry the liquid absorbent. In the nocturnal phase of operation, air is allowed to penetrate the desiccant bed. The airflow is driven by fans supported on one side of the desiccant/solar collector unit. In this study, the effects of different parameters on the absorption and regeneration processes are discussed, and operational conditions for the proposed equipment evaluated. Radiation intensity, ambient temperature, bed temperature and temperature of the glass surface were recorded. Also, the productivity of the system during the day and under the given operation conditions was plotted. A mathematical model was prepared and its output compared with the analyzed experimental data.

H.E Gad; A.M Hamed; I.I El-Sharkawy

2001-01-01T23:59:59.000Z

406

Water Consumption from Freeze Protection Valves for Solar Water Heating Systems  

SciTech Connect (OSTI)

Conference paper regarding research in the use of freeze protection valves for solar domestic water heating systems in cold climates.

Burch, J.; Salasovich, J.

2005-12-01T23:59:59.000Z

407

Parametric Investigation of the Performance of Solar Heating Systems with Rock Bed Storage  

Science Journals Connector (OSTI)

The performance of solar air collector domestic heating systems with rock bed storage, as obtained from theoretical analysis, is...

W. L. Dutre; J. Vanheelen

1981-01-01T23:59:59.000Z

408

A perturbative approach for the study of compatibility between nonminimally coupled gravity and Solar System experiments  

E-Print Network [OSTI]

We develop a framework for constraining a certain class of theories of nonminimally coupled (NMC) gravity with Solar System observations.

Orfeu Bertolami; Riccardo March; Jorge Páramos

2014-03-18T23:59:59.000Z

409

Application of RIMS to the Study of Beryllium ChronologyApplication of RIMS to the Study of Beryllium Chronology in Early Solar System Condensatesin Early Solar System Condensates  

E-Print Network [OSTI]

, Beryllium and Boron in the Early Solar System Many unanswered questions remain concerning the timing in addressing early solar system events, but only after establishing an initial period of isotopic homogeneity for each isotopic system, as well as convincing evidence of closed system behavior, thereafter. Be has

Grossman, Lawrence

410

Implementation of the Laboratory Air Handling Unit Systems (LAHU)  

E-Print Network [OSTI]

Implementation of the Laboratory Air Handling Unit Systems (LAHU) Y. Cui Graduate Student Energy Systems Laboratory University of Nebraska-Lincoln Omaha, NE, USA M. Liu, Ph.D., P.E. Associate Professor Energy Systems Laboratory...-around coils [18, 19], the variable air volume (VAV) fume hoods [8-16] and the usage-based control devices (UBC) [17]. These measures have effectively reduced the cooling energy, preheat energy and fan power consumption, and sometime, improved indoor...

Cui, Y.; Liu, M.; Conger, K.

2003-01-01T23:59:59.000Z

411

Numerical simulation of an innovated building cooling system with combination of solar chimney and water spraying system  

Science Journals Connector (OSTI)

In this study, passive cooling of a room using a solar chimney and water spraying system in the room ... a hot and arid city with very high solar radiation). The performance of this system ... some parameters suc...

Ramin Rabani; Ahmadreza K. Faghih; Mehrdad Rabani; Mehran Rabani

2014-11-01T23:59:59.000Z

412

Is Jupiter lord of the Solar System?  

Science Journals Connector (OSTI)

... might be considered more sensibly as a binary system than in the respective roles of humble planet and dominating star is not particularly new. But on page 35 of this ...

JOHN GRIBBIN

1974-07-05T23:59:59.000Z

413

National Aeronautics and Space Administration A Journey to the Beginning of the Solar System  

E-Print Network [OSTI]

impossible--with a more conventional propulsion system. Two large solar panels, stretching approximately 19National Aeronautics and Space Administration Dawn A Journey to the Beginning of the Solar System of our Solar System. How is this "time travel" possible? Many thousands of small bodies orbit the Sun

Waliser, Duane E.

414

Formation of the first oxidized iron in the solar system Lawrence GROSSMAN1,2  

E-Print Network [OSTI]

Formation of the first oxidized iron in the solar system Lawrence GROSSMAN1,2 , Alexei V. FEDKIN1 the first solid form of FeO appeared in the solar system. HIGH-TEMPERATURE CONDENSATION OF FEO years, and systems enriched in water by a factor of ten relative to solar composition, 1 lm radius

Grossman, Lawrence

415

Exploitation of solar energy storage systems. Valence isomerization between norbornadiene and quadricyclane derivatives  

Science Journals Connector (OSTI)

Exploitation of solar energy storage systems. ... Designing Copper(I) Photosensitizers for the Norbornadiene?Quadricyclane Transformation Using Visible Light:? An Improved Solar Energy Storage System ... Designing Copper(I) Photosensitizers for the Norbornadiene?Quadricyclane Transformation Using Visible Light:? An Improved Solar Energy Storage System ...

Kazuhiro Maruyama; Kazutoshi Terada; Yoshinori Yamamoto

1981-12-01T23:59:59.000Z

416

A numerical simulation of supersonic turbulent convection relating to the formation of the Solar system  

Science Journals Connector (OSTI)

......formation of the Solar system A. J. R...California Institute of Technology, Pasadena, California...from which the Solar system formed. The...giant convective cells, which span the whole layer. At cell boundaries the downflows...theory (MLT) of Solar system origin. Here......

A. J. R. Prentice; C. P. Dyt

2003-05-11T23:59:59.000Z

417

ELEG620: Solar Electric Systems University of Delaware Spring 2008 1 University of Delaware  

E-Print Network [OSTI]

obtained as an approximation to your design load, using 200Ws of solar panels. Existing loads which we haveELEG620: Solar Electric Systems University of Delaware Spring 2008 1 University of Delaware Department of Electrical and Computer Engineering ELEG620: Solar Electric Systems Photovoltaic System Design

Honsberg, Christiana

418

Nuclear bimodal new vision solar system missions  

SciTech Connect (OSTI)

This paper presents an analysis of the potential mission capability using space reactor bimodal systems for planetary missions. Missions of interest include the Main belt asteroids, Jupiter, Saturn, Neptune, and Pluto. The space reactor bimodal system, defined by an Air Force study for Earth orbital missions, provides 10 kWe power, 1000 N thrust, 850 s Isp, with a 1500 kg system mass. Trajectories to the planetary destinations were examined and optimal direct and gravity assisted trajectories were selected. A conceptual design for a spacecraft using the space reactor bimodal system for propulsion and power, that is capable of performing the missions of interest, is defined. End-to-end mission conceptual designs for bimodal orbiter missions to Jupiter and Saturn are described. All missions considered use the Delta 3 class or Atlas 2AS launch vehicles. The space reactor bimodal power and propulsion system offers both; new vision {open_quote}{open_quote}constellation{close_quote}{close_quote} type missions in which the space reactor bimodal spacecraft acts as a carrier and communication spacecraft for a fleet of microspacecraft deployed at different scientific targets and; conventional missions with only a space reactor bimodal spacecraft and its science payload. {copyright} {ital 1996 American Institute of Physics.}

Mondt, J.F. [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109-8099 (United States); Zubrin, R.M. [Lockheed Martin Corp., Lockheed Martin Astronautics, Denver, Colorado 80201 (United States)

1996-03-01T23:59:59.000Z

419

Maximizing Efficiency of Solar-Powered Systems by Load Matching  

E-Print Network [OSTI]

energy. However, solar powered sys- tems must also consider the output level of the solar panel for power be counterproductive. Another problem that is of particular importance to solar pan- els is load matching. Solar panels is around 0.7­1.2, solar panels have a much larger Ri value as a function of the solar output and current

Shinozuka, Masanobu

420

Solar Keymark Testing of Solar Thermal Products  

Science Journals Connector (OSTI)

The Solar Keymark is the official CEN certification scheme for thermal solar collectors and factory made thermal solar systems. The Solar Keymark requires that the products fulfil the...

Harald Drück; Stephan Fischer…

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "united solar systems" 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

Future exploration of the outer solar system  

Science Journals Connector (OSTI)

......on the extraction of 241Am from the separated civil plutonium stored in the UK. SEA is leading a team working on a Stirling engine system for power generation. The UK is currently the biggest contributor to this optional ESA programme, as it will......

Leigh Fletcher

2013-04-01T23:59:59.000Z

422

Sales and Use Tax Exemption for Solar and Geothermal Systems | Department  

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

Solar and Geothermal Systems Solar and Geothermal Systems Sales and Use Tax Exemption for Solar and Geothermal Systems < Back Eligibility Commercial General Public/Consumer Installer/Contractor Residential Savings Category Energy Sources Buying & Making Electricity Solar Heating & Cooling Commercial Heating & Cooling Heating Water Heating Program Info Start Date 7/1/2007 State Connecticut Program Type Sales Tax Incentive Rebate Amount 100% exemption Provider Connecticut Department of Revenue Services Connecticut enacted legislation in June 2007 (H.B. 7432) that established a sales and use tax exemption for solar energy equipment and geothermal resource systems. H.B. 7432 added passive and active solar water-heating systems, passive and active solar space-heating systems, and solar-electric

423

Energy management in solar thermal power plants with double thermal storage system and subdivided solar field  

Science Journals Connector (OSTI)

In the paper, two systems for solar thermal power plants (STPPs) are devised for improving the overall performance of the plant. Each one attempts to reduce losses coming from two respective sources. The systems are simulated and compared to a reference STPP. They consists on: (a) a double thermal energy storage (DTS) with different functionalities for each storage and (b) the subdivision of the solar collector field (SSF) into specialised sectors, so that each sector is designed to meet a thermal requirement, usually through an intermediate heat exchanger. This subdivision reduces the losses in the solar field by means of a decrease of the temperature of the heat transfer fluid (HTF). Double thermal energy storage is intended for keeping the plant working at nominal level for many hours a day, including post-sunset hours. One of the storages gathers a fluid which is heated up to temperatures above the nominal one. In order to make it work, the solar field must be able to overheat the fluid at peak hours. The second storage is the classical one. The combination of both allows the manager of the plant to keep the nominal of the plant for longer periods than in the case of classical thermal energy storage. To the authors’ knowledge, it is the first time that both configurations are presented and simulated for the case of parabolic through STPP with HTF technology. The results show that, if compared to the reference STPP, both configurations may raise the annual electricity generation (up to 1.7% for the DTS case and 3.9% for the SSF case).

Antonio Rovira; María José Montes; Manuel Valdes; José María Martínez-Val

2011-01-01T23:59:59.000Z

424

Performance of solar assisted heatpump systems in residential applications  

Science Journals Connector (OSTI)

In this experimental study, several solar-assisted heating and cooling configurations have beenconsidered for a basic system comprised of a two-speed heat pump, photovoltaic (PV) arrays, solar thermal collectors, and thermal storage. The objective of the study was to determine the performance of the PV arrays at decreased insolation, the effects of air preheat by solar thermal energy on heat pump operation, and cooling system performance under two different configurations. During the entire operation, the PV arrays converted 4.7 per cent (9.5 MWh) of the incident solar insolation to d.c. power, of which 54.6 per cent was used by the residence. This contributed 23.4 per cent of the total house electrical demand. The remaining 45.4 per cent of the output was fed to the utility, indicating the arrays and the heat pump were not properly sized with each other. Based on results from the winter heating operation, it is shown that for the particular heating system consdered, the best performance is attained when the solar heating is used alone. By using the heat pump as a booster, the remaining available solar energy left in the storage tank can be used with good seasonal performance factor. Summer cooling operation consisted of two sequential cooling configurations. In the first cooling test, the heat pump was operated to either the house or storage when the PV array generation level was greater than the energy demand of the heat pump and associated equipment. When the array output level was less than the cooling system demand, the operating strategy was that of an off-peak cooling operation to chill the water storage. Utilization of chilled water storage was not realized in the first cooling test because of the inherent inefficient design of the Tri-X coil. The capacity at low-speed heat pump operation was too small to effect significant cooling of the water loop; whereas high-speed heat pump operation in attempting to chill water (fan operation absent) caused frosting of the coil. The heat pump was utilized only to maintain chilled water storage in the second cooling test, without heat transfer through the Tri-X coil. Cooling system performance obtained in cooling test 2 using the Ametex exchanger was considerably improved over the test 2 performance with the Tri-X coil.

S. Kugle; S. Green; A. Haji-Sheikh; D.Y.S. Lou

1984-01-01T23:59:59.000Z

425

Oldest objects in solar system indicate a turbulent beginning  

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

3-02 3-02 For immediate release: 03/03/2011 | NR-11-03-02 Oldest objects in solar system indicate a turbulent beginning Anne M Stark, LLNL, (925) 422-9799, stark8@llnl.gov Printer-friendly Compositional X-ray image of the rim and margin of a ~4.6 billion year old calcium aluminum refractory inclusion (CAI) from the Allende carbonaceous chondrite. Core extending well beyond the field of view to the upper left consists of melilite, spinel and perovskite. Rim consists of a sequence of mono-mineral layers a few micrometers thick (hibonite, perovskite, spinel, melilite/sodalite, pyroxene, and olivine). A spinel-rich micro-inclusion appears to have been entrapped while the rim was forming. LIVERMORE, Calif. -- Scientists have found that calcium, aluminum-rich inclusions (CAIs), some of the oldest objects in the solar system, formed

426

CDCA Final EIS for Ivanpah Solar Electric Generating System  

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

CALIFORNIA DESERT CONSERVATION AREA PLAN CALIFORNIA DESERT CONSERVATION AREA PLAN AMENDMENT / FINAL ENVIRONMENTAL IMPACT STATEMENT FOR IVANPAH SOLAR ELECTRIC GENERATING SYSTEM FEIS-10-31 JULY 2010 BLM/CA/ES-2010-010+1793 In Reply Refer To: In reply refer to: 1610-5.G.1.4 2800lCACA-48668 Dear Reader: Enclosed is the proposed California Desert Conservation Area Plan Amendment and Final Environmental Impact Statement (CDCA Plan Amendment/FEIS) for the Ivanpah Solar Electric Generating System (ISEGS) project. The Bureau of Land Management (BLM) prepared the CDCA Plan Amendment/FEIS for the ISEGS project in consultation with cooperating agencies and California State agencies, taking into account public comments received during the National Environmental Policy Act (NEPA) process. The proposed plan amendment adds the Ivanpah

427

Solar System Constraints on Gauss-Bonnet Mediated Dark Energy  

E-Print Network [OSTI]

Although the Gauss-Bonnet term is a topological invariant for general relativity, it couples naturally to a quintessence scalar field, modifying gravity at solar system scales. We determine the solar system constraints due to this term by evaluating the post-Newtonian metric for a distributional source. We find a mass dependent, 1/r^7 correction to the Newtonian potential, and also deviations from the Einstein gravity prediction for light-bending. We constrain the parameters of the theory using planetary orbits, the Cassini spacecraft data, and a laboratory test of Newton's law, always finding extremely tight bounds on the energy associated to the Gauss-Bonnet term. We discuss the relevance of these constraints to late-time cosmological acceleration.

Luca Amendola; Christos Charmousis; Stephen C. Davis

2007-04-02T23:59:59.000Z

428

A DANISH SOLAR THERMAL ENERGY DATA BASE FOR HEATING SYSTEM DESIGN  

Science Journals Connector (OSTI)

ABSTRACT Successful design of solar heating systems is readily achieved if the designer has access to representative weather data and tested performance algorithms. This paper describes how updated solar radiation data have been provided via a public database system in Denmark. This work was carried out in cooperation with VE-data at Ålborg University and with the support of the Danish National Council of Technology (Teknologirådet). The product of this work is Solar Energy Program Package (SEPP) for IBM PC compatible computers. The Package provides a tool based on the f-chart method1 for use in the design and evaluation of solar water heating systems and solar space/hot water heating systems. A program for the economic evaluation of solar energy heating system is also supplied. KEYWORDS Solar energy database; f-chart method; Kt method; weather data; economics of solar heating; IBM compatible; software.

lektor Frank Bason

1988-01-01T23:59:59.000Z

429

Solar heating and hot water system installed at office building, One Solar Place, Dallas, Texas. Final report  

SciTech Connect (OSTI)

This document is the Final Report of the Solar Energy System Installed at the First Solar Heated Office Building, One Solar Place, Dallas, Texas. The Solar System was designed to provide 87 percent of the space heating needs, 100 percent of the potable hot water needs and is sized for future absorption cooling. The collection subsystem consists of 28 Solargenics, series 76, flat plate collectors with a total area of 1596 square feet. The solar loop circulates an ethylene glycol-water solution through the collectors into a hot water system heat exchanger. The hot water storage subsystem consists of a heat exchanger, two 2300 gallon concrete hot water storage tanks with built in heat exchangers and a back-up electric boiler. The domestic hot water subsystem sends hot water to the 10,200 square feet floor area office building hot water fixtures. The building cold water system provides make-up to the solar loop, the heating loop, and the hot water concrete storage tanks. The design, construction, cost analysis, operation and maintenance of the solar system are described. The system became operational July 11, 1979.

Not Available

1980-06-01T23:59:59.000Z

430

Solar Electric Generating System II finite element analysis  

SciTech Connect (OSTI)

On June 2, 1992, Landers` earthquake struck the Solar Electric Generating System II, located in Daggett, California. The 30 megawatt power station, operated by the Daggett Leasing Corporation (DLC), suffered substantial damage due to structural failures in the solar farm. These failures consisted of the separation of sliding joints supporting a distribution of parabolic glass mirrors. At separation, the mirrors fell to the ground and broke. It was the desire of the DLC and the Solar Thermal Design Assistance Center (STDAC) of Sandia National Laboratories (SNL) and to redesign these joints so that, in the event of future quakes, costly breakage will be avoided. To accomplish this task, drawings of collector components were developed by the STDAC, from which a detailed finite element computer model of a solar collector was produced. This nonlinear dynamic model, which consisted of over 8,560 degrees of freedom, underwent model reduction to form a low order nonlinear dynamic model containing only 40 degrees of freedom. This model was then used as a design tool to estimate joint dynamics. Using this design tool, joint configurations were modified, and an acceptable joint redesign determined. The results of this analysis showed that the implementation of metal stops welded to support shafts for the purpose of preventing joint separation is a suitable joint redesign. Moreover, it was found that, for quakes of Landers` magnitude, mirror breakage due to enhanced vibration in the trough assembly is unlikely.

Dohner, J.L.; Anderson, J.R.

1994-04-01T23:59:59.000Z

431

A portable measurement system for power profiling of processing units  

Science Journals Connector (OSTI)

Abstract The paper deals with the design and the metrologic characterization of a portable power consumption measurement system capable to correlate the average power consumption of a central processing unit to processor performance. A survey of power measurement systems designed for the evaluation of computer energy performance is provided. The design steps for the proposed power measurement system and its comprehensive hardware and software descriptions are reported. Furthermore, a calibration procedure of the power measurement system is described. Five benchmark tests have been executed on an Intel Pentium D processor and the measured power loads are reported and discussed.

F. Picariello; S. Rapuano; U. Villano

2014-01-01T23:59:59.000Z

432

Solar System experiments do not yet veto modified gravity models  

E-Print Network [OSTI]

The dynamical equivalence between modified and scalar-tensor gravity theories is revisited and it is concluded that it breaks down in the limit to general relativity. A gauge-independent analysis of cosmological perturbations in both classes of theories lends independent support to this conclusion. As a consequence, the PPN formalism of scalar-tensor gravity and Solar System experiments do not veto modified gravity, as previously thought.

Valerio Faraoni

2006-07-05T23:59:59.000Z

433

Solar Survey of PV System Owners: San Diego  

Broader source: Energy.gov [DOE]

The purpose of the survey was to understand the motivation, challenges and benefits perceived by individuals who decided to install solar systems in the City of San Diego. Approximately 2000 surveys were sent, and 641 surveys were completed. The primary response was from the residential sector. Individuals had the option to reply electronically, using Survey Monkey, or to complete a paper survey. All responses were combined and checked to ensure that there were no duplicates.

434

Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System with Thermal Storage  

E-Print Network [OSTI]

of a solar-thermal- assisted hvac system. Energy andsolar thermal collectors using flat reflective surfaces. Solar Energy,of a solar-assisted HVAC system with thermal storage. Energy

Mammoli, Andrea

2014-01-01T23:59:59.000Z

435

Assessment of a Solar Assisted Air Source and a Solar Assisted Water Source Heat Pump System in a Canadian Household  

Science Journals Connector (OSTI)

This paper presents an assessment of two solar assisted heat pump systems integrated into an air distribution system in three different 210 m2 single detached residential houses in Montreal, Canada. The housing types considered are a 1980's house, an energy efficient house and a “net zero ready” house. The advanced heat pump systems considered in the analysis focused on coupling solar energy on the evaporator side of an air source and water source heat pumps to improve performance compared to a standard air source heat pump and provide an alternative to a costly ground source heat pump system. The annual energy consumption and utility cost of the solar assisted heat pump systems were compared to a market available air source heat pump, a ground source heat pump system as well as the typical reference housing heating and cooling system. The results predicted that a solar assisted air source heat pump has a comparable capital cost to a ground source heat pump system in all housing types and the highest energy savings for a “net zero ready” house of 34% compared to the base case. The solar assisted water source heat pump did not yield interesting results, as the solar assisted air source heat pump demonstrated improved energy savings and lower capital costs in all housing types considered. Comparing the 20 year life cycle costs of the solar assisted heat pump systems to the base case, only in the 1980's housing archetype did the solar assisted air source heat pump system demonstrate a lower life cycle cost than the base case. A standard air source heat pump yielded the lowest life cycle cost in the 1980's and energy efficient house considered and the reference base case system had the lowest life cycle cost in the net zero ready house considered.

Martin Kegel; Justin Tamasauskas; Roberto Sunye; Antoine Langlois

2012-01-01T23:59:59.000Z

436

Exploring the Outer Solar System with the ESSENCE Supernova Survey  

SciTech Connect (OSTI)

We report the discovery and orbital determination of 14 trans-Neptunian objects (TNOs) from the ESSENCE Supernova Survey difference imaging data set. Two additional objects discovered in a similar search of the SDSS-II Supernova Survey database were recovered in this effort. ESSENCE repeatedly observed fields far from the solar system ecliptic (-21{sup o} < {beta} < -5{sup o}), reaching limiting magnitudes per observation of I {approx} 23.1 and R {approx} 23.7. We examine several of the newly detected objects in detail, including 2003 UC{sub 414}, which orbits entirely between Uranus and Neptune and lies very close to a dynamical region that would make it stable for the lifetime of the solar system. 2003 SS{sub 422} and 2007 TA{sub 418} have high eccentricities and large perihelia, making them candidate members of an outer class of TNOs. We also report a new member of the 'extended' or 'detached' scattered disk, 2004 VN{sub 112}, and verify the stability of its orbit using numerical simulations. This object would have been visible to ESSENCE for only {approx}2% of its orbit, suggesting a vast number of similar objects across the sky. We emphasize that off-ecliptic surveys are optimal for uncovering the diversity of such objects, which in turn will constrain the history of gravitational influences that shaped our early solar system.

Becker, A.C.; /Washington U., Seattle, Astron. Dept.; Arraki, K.; /Washington U., Seattle, Astron. Dept.; Kaib, N.A.; /Washington U., Seattle, Astron. Dept.; Wood-Vasey, W.M.; /Harvard-Smithsonian Ctr. Astrophys.; Aguilera, C.; /Cerro-Tololo InterAmerican Obs.; Blackman, J.W.; /Australian Natl. U., Canberra; Blondin, S.; /Harvard-Smithsonian Ctr. Astrophys.; Challis, P.; /Harvard-Smithsonian Ctr. Astrophys.; Clocchiatti, A.; /Rio de Janeiro, Pont. U. Catol.; Covarrubias, R.; /Kyushu Sangyo U.; Damke, G.; /Cerro-Tololo InterAmerican Obs.; Davis, T.M.; /Bohr Inst. /Queensland U.; Filippenko, A.V.; /UC, Berkeley; Foley, R.J.; /UC, Berkeley; Garg, A.; /Harvard-Smithsonian Ctr. Astrophys. /Harvard U.; Garnavich, P.M.; /Notre Dame U.; Hicken, M.; /Harvard-Smithsonian Ctr. Astrophys. /Harvard U.; Jha, S.; /Harvard U. /SLAC; Kirshner, R.P.; /Harvard-Smithsonian Ctr. Astrophys.; Krisciunas, K.; /Notre Dame U. /Texas A-M; Leibundgut, B.; /Munich, Tech. U. /UC, Berkeley /NOAO, Tucson /Washington U., Seattle, Astron. Dept. /Fermilab /Harvard-Smithsonian Ctr. Astrophys. /Harvard U. /Chile U., Santiago /Ohio State U. /Cerro-Tololo InterAmerican Obs. /Harvard U. /Baltimore, Space Telescope Sci. /Johns Hopkins U. /Australian Natl. U., Canberra /Australian Natl. U., Canberra /Cerro-Tololo InterAmerican Obs. /Munich, Tech. U. /Harvard-Smithsonian Ctr. Astrophys. /Harvard U. /Cerro-Tololo InterAmerican Obs. /Texas A-M /Cerro-Tololo InterAmerican Obs.

2011-11-10T23:59:59.000Z

437

Land-Use Requirements for Solar Power Plants in the United States  

Office of Scientific and Technical Information (OSTI)

Official documents Searchlight Solar Project NV 20.0 242.3 1 axis Complete Third party Fish Springs NV 20.6 211.4 Fixed 10% Construction Official documents Apex NV 24.9 187.1...

438

Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States  

E-Print Network [OSTI]

and Michigan, thus it remains to be seen whether the solarsolar capacity. Three other states (Washington, Texas, and Michigan)Michigan, Texas, Washington, Colorado 14 ); similarly, Delaware offers a time-limited multiplier for in-state solar (and

Wiser, Ryan

2010-01-01T23:59:59.000Z

439

Supporting Solar Power in Renewables Portfolio Standards: Experience from the United States  

E-Print Network [OSTI]

by 2015 MN: 25% by 2025 Xcel: 30% by 2020 MI: 10% by 2015or 20 years in the case of Xcel Energy’s Solar Rewardsto the standard rebate, Xcel Energy offers a separate

Wiser, Ryan

2010-01-01T23:59:59.000Z

440

Potential Role of Concentrating Solar Power in Enabling High Renewables Scenarios in the United States  

SciTech Connect (OSTI)

This work describes the analysis of concentrating solar power (CSP) in two studies -- The SunShot Vision Study and the Renewable Electricity Futures Study -- and the potential role of CSP in a future energy mix.

Denholm, P.; Hand, M.; Mai, T.; Margolis, R.; Brinkman, G.; Drury, E.; Mowers, M.; Turchi, C.

2012-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "united solar systems" 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

Cross Linear Solar Concentration System for CSP and CPV  

Science Journals Connector (OSTI)

Abstract The novel concentration system, Cross Linear (CL) system has been newly invented by Tokyo Institute of Technology. From a simulation study on how cosine effect varies with latitude, declination angle, hour angle, and tan ? (the ratio of the receiver height and the distance from mirror position to the receiver position for the receiver/mirror configuration of the CL system), it was found that the cosine factor of CL system increases with an increase in the latitude. The higher cosine factor with around 0.95 in winter months is obtained by CL system even at high latitudes. The CL system can eliminate the end loss and increase the optical efficiency compared to Trough and LFR (Linear Fresnel Reflector system). This seems to solve the problems in the concentration systems of Trough and LFR; the lower concentration efficiency (lower cosine factor) in the winter months. In addition, a higher temperature around 650 °C can be obtained with the CL system, due to the high concentration degree of CL solar reflection method. Thus, the CL system can achieve both high concentration temperature and high collection efficiency in both winter and summer seasons, even at high latitudes. Therefore the CL system seems to be the only CSP system suitable for the CSP-sites at high latitudes such as Mongolia (outer and inner), southern areas of Spain and Australia, and northern area of India. Due to the promising CL system, a joint collaboration between Japanese and Indian industries, institutes and universities has been launched to build solar plant based on CL technology. Also, the CL system also seems to be applicable for the CPV, because the coma tic aberration is very small during 9am to 3pm during the sunlight duration.

Y. Tamaura; S. Shigeta; Q.-L. Meng; T. Aiba; H. Kikura

2014-01-01T23:59:59.000Z

442

Cryomagmatism in the outer solar system  

SciTech Connect (OSTI)

Assemblages of cryovolcanic, tectonic, and impact structures form varied landscapes quite alien in their collective expression. Many variables can affect the cryovolcanic style of a satellite but none more so than cryolava composition. The compositional variable is examined in considerable detail. Existing knowledge of phase equilibria and physical properties of cosmochemically relevant unary, binary, and multi-component chemical systems are summarized. Where published knowledge was found lacking, measurements of the physical chemistry of volatile mixtures are presented. Cryovolcanic landscapes are briefly toured, and knowledge of the physical chemistry of volatile mixtures is applied to problems of cryovolcanological interest. Aqueous cryolavas may range in composition from salt-water brines to cryogenic ammonia-water-rich multi-components solutions possibly involving methanol, ammonium sulfide, alkali chlorides, and many other potential components. Cryomagmatic distillation can greatly accentuate the importance of trace and minor constituents of icy satellites. The viscosities, densities, and other physical properties of these liquids vary considerably and depend sensitively on their exact compositions. These properties affect everything from cryovolcanic eruptive styles and landforms, to the way cryovolcanic crusts respond to tectonic stress. It is believed that the compositional variable is directly or indirectly implicated in a wide varity of geomorphic aspects of contrast among the icy satellites. Thus, even though as yet any specific morphology can be attributed to a specific composition, there appears to be a powerful link between composition of the ices originally accreted by a satellite and its subsequent interior evolution and exterior geomorphic appearance.

Kargel, J.S.

1990-01-01T23:59:59.000Z

443

Design and Analysis of Micro-Solar Power Systems for Wireless  

E-Print Network [OSTI]

Design and Analysis of Micro- Solar Power Systems for Wireless Sensor Networks Jaein Jeong UC Berkeley, Computer Science with Xiaofan Jiang and David Culler 11-17-2006 LGE Talk #12;2 Solar Energy in Richmond Field Station Trio Heliomote #12;3 Our Contributions · Model for micro-solar power system

California at Berkeley, University of

444

A dynamical systems approach for the station keeping of a Solar Sail  

E-Print Network [OSTI]

A dynamical systems approach for the station keeping of a Solar Sail Ariadna Farr´es and `Angel considered the movement of a solar sail in the Sun - Earth system. As a model we have used the RTBP adding the solar radiation pressure. It can be seen that we have a 2D family of equilibria parametrised by the two

Barcelona, Universitat de

445

High-Performance Home Technologies: Solar Thermal & Photovoltaic Systems; Volume 6 Building America Best Practices Series  

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

by by Pacific Northwest National Laboratory & Oak Ridge National Laboratory June 4, 2007 June 2007 * NREL/TP-550-41085 PNNL-16362 High-Performance Home Technologies: Solar Thermal & Photovoltaic Systems Building America Best Practices Series Volume 6 High-Performance Home Technologies: Solar Thermal & Photovoltaic Systems Building America Best Practices Series Prepared by Pacific Northwest National Laboratory, a DOE national laboratory Michael C. Baechler Theresa Gilbride, Kathi Ruiz, Heidi Steward and Oak Ridge National Laboratory, a DOE national laboratory Pat M. Love June 4, 2007 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor Battelle Memorial Institute, nor any of their employees, makes any warranty,

446

Promising freeze protection alternatives in solar domestic hot water systems  

SciTech Connect (OSTI)

Since the gains associated with solar thermal energy technologies are comparatively small in relation to the required capital investment, it is vital to maximize conversion efficiency. While providing the necessary function of freeze protection, the heat exchanger commonly included in solar domestic water heating systems represents a system inefficiency. This thesis explores two alternate methods of providing freeze protection without resorting to a heat exchanger. Commonly, collectors are made of rigid copper tubes separated by copper or aluminum fins. Cracking damage can occur when water is allowed to freeze and expand inside the non compliant tubes. The possibility of making collectors out of an elastic material was investigated and shown to be effective. Since unlike copper, elastomers typically have low thermal conductivities, the standard collector performance prediction equations do not apply. Modified thermal performance prediction equations were developed which can be used for both low and high thermal conductivity materials to provide accurate predictions within a limited range of plate geometries. An elastomeric collector plate was then designed and shown to have comparable performance to a copper plate collector whose aperture area is approximately 33% smaller. Another options for providing freeze protection to an SDHW system is to turn it off during the winter. Choosing a three-season operating period means two things. First, the system will have different optimums such as slope and collector area. Second, the wintertime solar energy incident on the collector is unavailable for meeting a heating load. However, the system`s heat exchanger becomes unnecessary and removing it increases the amount of energy that arrives at the storage tank during those periods in which the system is operating.

Bradley, D.E.

1997-12-31T23:59:59.000Z

447

Experimental Performance of a Solar Collector in Solar Chimney Power Plant System  

Science Journals Connector (OSTI)

Solar chimney power plant has been proposed as a device to economically generate electricity from solar energy in large scale in the future. There are many factors to influence on the performance of the solar collector. This paper describes details of ... Keywords: generate electricity, thermal storage material, pebbles, solar collector

Huilan Huang; Gang Li; Hua Zhang

2010-06-01T23:59:59.000Z

448

Arizona College 5 MW System Will be "Solar with a Purpose" | Department  

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

Arizona College 5 MW System Will be "Solar with a Purpose" Arizona College 5 MW System Will be "Solar with a Purpose" Arizona College 5 MW System Will be "Solar with a Purpose" May 28, 2010 - 2:19pm Addthis Arizona Western College (AWC) wants to be the go-to for solar, says Bill Smith, director of facilities management. AWC is based in Yuma, Ariz., and that, according to the Guinness Book of World Records, is the sunniest place on Earth. Now, a group of private companies, researchers and AWC educators will tap the solar potential by building a 4.995 MW solar array at the college. When the solar energy system is completed, it will be the largest solar array on any U.S. college campus. "We are strategically placed geographically. Now that we have this company that has approached us with this awesome opportunity, we want ...

449

Dynamic Exergy Analysis of a Solar Ejector Refrigeration System with Hot Water Storage Tank  

Science Journals Connector (OSTI)

A dynamic model is proposed to use in investigating the exergy analysis of a solar ejector refrigeration system using R141, for office ... in Tehran. Classical hourly outdoor temperature and solar radiation model...

Hooman Golchoobian; Ali Behbahaninia…

2014-01-01T23:59:59.000Z

450

Research Project: “Guidelines for Optimal Planning and Construction of Solar Energy Systems  

Science Journals Connector (OSTI)

Within the framework of the IEA, the Swiss Professional Association of Solar-Energy Firms (SOFAS) will design and install various solar energy systems for domestic hot-waterpreparation and space heating. After...

B. Schläpfer

1984-01-01T23:59:59.000Z

451

Research on Solar High-Temperature Absorption Air-Conditioning Systems  

Science Journals Connector (OSTI)

This paper studies the characteristics and performance of solar higher-temperature absorption air conditioning systems which employed linear concentrating collectors and double-effect absorption chillers. A solar...

Guoqing Yu; Jinhua Tang; Zhijun Zou

2009-01-01T23:59:59.000Z

452

Development and modelling of a solar assisted liquid desiccant dehumidification air-conditioning system  

Science Journals Connector (OSTI)

This paper presents the development and simulation of an advanced solar assisted liquid desiccant dehumidification air-conditioning system for ... regenerator, and an array of flat plate solar collectors. The sys...

Aqeel Kareem Mohaisen; Zhenjun Ma

2014-09-01T23:59:59.000Z

453

Arizona College 5 MW System Will be "Solar with a Purpose" | Department  

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

Arizona College 5 MW System Will be "Solar with a Purpose" Arizona College 5 MW System Will be "Solar with a Purpose" Arizona College 5 MW System Will be "Solar with a Purpose" May 28, 2010 - 2:19pm Addthis Arizona Western College (AWC) wants to be the go-to for solar, says Bill Smith, director of facilities management. AWC is based in Yuma, Ariz., and that, according to the Guinness Book of World Records, is the sunniest place on Earth. Now, a group of private companies, researchers and AWC educators will tap the solar potential by building a 4.995 MW solar array at the college. When the solar energy system is completed, it will be the largest solar array on any U.S. college campus. "We are strategically placed geographically. Now that we have this company that has approached us with this awesome opportunity, we want ...

454

Banking on Solar: An Analysis of Banking Opportunities in the...  

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

analysis comparing loan products to third party-financed systems in California. Solar-specific loan financing is growing in the United States-2014 in particular saw several...

455

Integrated defueling system for Three Mile Island Unit 2  

SciTech Connect (OSTI)

The unique clean-up requirements of Three Mile Island Unit 2 have posed first-of-a-kind challenges for the equipment, tools, and operators involved in the defueling effort. Various equipment components and specialty remote tools were designed as an integrated defueling system to provide a means of safely working above the reactor and removing core debris. The basic defueling system consists of support equipment and specialty remote tools for specific operations. This paper describes the different equipment and tools, and explains the key interfaces and features of the integrated defueling system.

Brown, D.A.; Gallagher, R.E.; Rider, R.L.

1986-01-01T23:59:59.000Z

456

Lawrence Berkeley Laboratory, Berkeley, California solar energy system performance evaluation, July 1980-June 1981  

SciTech Connect (OSTI)

The Lawrence Berkeley Laboratory site is an office building in California with an active solar energy system designed to supply from 23 to 33% of the space heating load and part of the hot water load. The solar heating system is equipped with 1428 square feet of flat-plate collectors, a 2000-gallon water storage tank, and two gas-fired boilers to supply auxiliary heat for both space heating and domestic hot water. Poor performance is reported, with the solar fraction being only 4%. Also given are the solar savings ratio, conventional fuel savings, system performance factor, and the coefficient of performance. The performance data are given for the collector, storage, solar water heating and solar space heating subsystems as well as the total system. Typical system operation and solar energy utilization are briefly described. The system design, performance evaluation techniques, weather data, and sensor technology are presented. (LEW)

Wetzel, P.E.

1981-01-01T23:59:59.000Z

457

Solar energy system performance evaluation, July 1979 through June 1980  

SciTech Connect (OSTI)

The Loudoun County site is the Charles S. Monroe Vocational Technical School in Leesburg, Virginia. The active solar energy system is designed to supply 26% of the domestic hot water demand. It is equipped with 1225 square feet of double glazed flat-plate collectors manufactured by Southwest Enertech, a 2056 gallon liquid storage tank located in the school's mechanical room, and a backup electric immersion heater, 2 stage, 20 kW per stage. The system performance for the period July 1979 through June 1980 is presented, and the meteorological conditions are included. (WHK)

Missal, D.

1980-01-01T23:59:59.000Z

458

Optical system for determining physical characteristics of a solar cell  

DOE Patents [OSTI]

The invention provides an improved optical system for determining the physical characteristics of a solar cell. The system comprises a lamp means for projecting light in a wide solid-angle onto the surface of the cell; a chamber for receiving the light through an entrance port, the chamber having an interior light absorbing spherical surface, an exit port for receiving a beam of light reflected substantially normal to the cell, a cell support, and an lower aperture for releasing light into a light absorbing baffle; a means for dispersing the reflection into monochromatic components; a means for detecting an intensity of the components; and a means for reporting the determination.

Sopori, Bhushan L. (Denver, CO)

2001-01-01T23:59:59.000Z

459

Multi-objective optimization of a combined cooling, heating and power system driven by solar energy  

Science Journals Connector (OSTI)

Abstract This paper presented a multi-objective optimization of a combined cooling, heating and power system (CCHP) driven by solar energy. The flat-plate solar collector was employed to collect the solar radiation and to transform it into thermal energy. The thermal storage unit was installed to storage the thermal energy collected by the collectors to ensure a continuous energy supplement when solar energy was weak or insufficient. The CCHP system combined an organic Rankine cycle with an ejector refrigeration cycle to yield electricity and cold capacity to users. In order to conduct the optimization, the mathematical model of the solar-powered CCHP system was established. Owing to the limitation of the single-objective optimization, the multi-objective optimization of the system was carried out. Four key parameters, namely turbine inlet temperature, turbine inlet pressure, condensation temperature and pinch temperature difference in vapor generator, were selected as the decision variables to examine the performance of the overall system. Two objective functions, namely the average useful output and the total heat transfer area, were selected to maximize the average useful output and to minimize the total heat transfer area under the given conditions. NSGA-II (Non-dominated Sort Genetic Algorithm-II) was employed to achieve the final solutions in the multi-objective optimization of the system operating in three modes, namely power mode, combined heat and power (CHP) mode, and combined cooling and power (CCP) mode. For the power mode, the optimum average useful output and total heat transfer area were 6.40 kW and 46.16 m2. For the CCP mode, the optimum average useful output and total heat transfer area were 5.84 kW and 58.74 m2. For the CHP mode, the optimum average useful output and total heat transfer area were 8.89 kW and 38.78 m2. Results also indicated that the multi-objective optimization provided a more comprehensive solution set so that the optimum performance could be achieved according to different requirements for system.

Man Wang; Jiangfeng Wang; Pan Zhao; Yiping Dai

2015-01-01T23:59:59.000Z

460

Parametric sensitivity study for solar-assisted heat-pump systems. Final report  

SciTech Connect (OSTI)

A sensitivity study is performed of the engineering and economic parameters affecting life-cycle costs for solar-assisted heat pump systems. The change in energy usage resulting from each engineering parameter varied has been developed from computer simulations, and is compared with results from a stand-alone heat pump system. Three geographical locations are considered: Washington, DC, Fort Worth, TX, and Madison, WI. Results indicate that most engineering changes to the systems studied do not provide significant energy savings. The most promising parameters to vary are the solar collector parameters tau ..cap alpha.. and U/sub L/ the heat pump capactiy at design point, and the minimum utilizable evaporator temperature. Costs associated with each change are estimated, and life-cycle costs computed for both engineering parameters and economic variations in interest rate, discount rate, tax credits, fuel unit costs and fuel inflation rates. Results indicate that none of the feasible engineering changes for the system configuration studied will make these systems economically competitive with the stand-alone heat pump without a considerable tax credit.

White, N.M.; Morehouse, J.H.

1981-07-01T23:59:59.000Z

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


461

Ch.2 Solar Energy to Earth and the Seasons  

E-Print Network [OSTI]

Light year is a unit of distance!!! #12;Our Solar System #12;Earth's orbit Earth's orbit around energy is radiant energy (i.e., radiant light and heat) from the Sun. #12;How is solar energy created Southern lights Northern lights #12;Learning Objective Three: Solar Radiation #12; Solar radiation

Pan, Feifei

462

Orbits design for Leo space based solar power satellite system.  

E-Print Network [OSTI]

?? Space Based Solar Power satellites use solar arrays to generate clean, green, and renewable electricity in space and transmit it to earth via microwave,… (more)

Addanki, Neelima Krishna Murthy

2011-01-01T23:59:59.000Z

463

Solar assisted cooling with sorption systems: status of the research in Mexico and Latin America  

Science Journals Connector (OSTI)

Solar refrigeration projects both national and international with sorption and other refrigeration systems have been developed in Mexico and other Latin American countries in the last 15 years. A review of the main projects, both for solar cooling and refrigeration and the results obtained are presented in this paper. A methodology where 19 solar technologies for cooling were identified is also presented. Although solar cooling is still not an economically viable technology, the advances made and the experience gained in the projects described and the improved systems envisaged, will make solar refrigeration systems play an important role in the future.

Roberto Best; Isaac Pilatowsky

1998-01-01T23:59:59.000Z

464

Dark matter in the Solar System. I. The distribution function of WIMPs at the Earth from solar capture  

Science Journals Connector (OSTI)

The next generation of dark matter (DM) direct detection experiments and neutrino telescopes will probe large swaths of dark matter parameter space. In order to interpret the signals in these experiments, it is necessary to have good models of both the halo DM streaming through the Solar System and the population of DM bound to the Solar System. In this paper, the first in a series of three on DM in the Solar System, we present simulations of orbits of DM bound to the Solar System by solar capture in a toy solar system consisting of only the Sun and Jupiter, assuming that DM consists of a single species of weakly interacting massive particle (WIMP). We describe how the size of the bound WIMP population depends on the WIMP mass m?, spin-independent cross section ?pSI, and spin-dependent cross section ?pSD. Using a standard description of the Galactic DM halo, we find that the maximum enhancement to the direct detection event rate, consistent with current experimental constraints on the WIMP-nucleon cross section, is <1% relative to the event rate from halo WIMPs, while the event rate from neutrinos from WIMP annihilation in the center of the Earth is unlikely to meet the threshold of next-generation, km3-sized (IceCube, KM3NeT) neutrino telescopes.

Annika H. G. Peter

2009-05-28T23:59:59.000Z

465

Testing and modeling of a solar thermophotovoltaic power system  

SciTech Connect (OSTI)

A solar thermophotovoltaic (STPV) power system has attractive attributes for both space and terrestrial applications. This paper presents the results of testing by McDonnell Douglas Aerospace (MDA) over the last year with components furnished by the NASA Lewis Research Center (LeRC) and the National Renewable Energy Lab (NREL). The testing has included a large scale solar TPV testbed system and small scale laboratory STPV simulator using a small furnace. The testing apparatus, instrumentation, and operation are discussed, including a description of the emitters and photovoltaic devices that have been tested. Over 50 on-sun tests have been conducted with the testbed system. It has accumulated over 300 hours of on-sun time, and 1.5 MWh of thermal energy incident on the receiver material while temperatures and I-V measurements were taken. A summary of the resulting test data is presented that shows the measured performance at temperatures up to 1220{degree}C. The receiver materials and PV cells have endured the high temperature operation with no major problems. The results of this investigation support MDA belief that STPV is a viable power system for both space and terrestrial power applications. {copyright} {ital 1996 American Institute of Physics.}

Stone, K.W. [McDonnell Douglas, 5301 Bolsa Ave, Huntington Bch., California 92647 (United States); Chubb, D.L.; Wilt, D.M. [NASA Lewis Research Center, 21000 Brookpark Rd., Cleveland, Ohio 44135 (United States); Wanlass, M.W. [National Renewable Energy Lab, 1617 Cole Boulevard, Golden, Colorado 80401 (United States)

1996-02-01T23:59:59.000Z

466

Utility-Scale Solar 2012: An Empirical Analysis of Project Cost, Performance, and Pricing Trends in the United States  

E-Print Network [OSTI]

Solar Energy Industries Association (SEIA). 2013. Major Solar ProjectsSolar Energy Industries Association (“SEIA”) for maintaining and sharing SEIA’s list of major solar projectsSolar Energy Center in Florida, built in 2010) and $4.5/W AC (the 64 MW AC Nevada Solar One project,

Bolinger, Mark

2014-01-01T23:59:59.000Z

467

Adapting the International System of Units to the twenty-first century  

Science Journals Connector (OSTI)

...Discussion Meeting on The new SI: units of measurement based on fundamental constants...actually fixes the value of the unit of energy per temperature interval...the new SI, electromagnetic measurements and units will be brought into the system...

2011-01-01T23:59:59.000Z

468

Solar thermal collector system modeling and testing for novel solar cooker  

E-Print Network [OSTI]

Solar cookers are aimed at reducing pollution and desertification in the developing world. However, they are often disregarded as they do not give users the ability to cook after daylight hours. The Wilson solar cooker is ...

Foley, Brian, S.B. (Brian M.). Massachusetts Institute of Technology

2014-01-01T23:59:59.000Z

469

Sundance, Skiing and Solar: Park City to Install New PV System | Department  

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

Sundance, Skiing and Solar: Park City to Install New PV System Sundance, Skiing and Solar: Park City to Install New PV System Sundance, Skiing and Solar: Park City to Install New PV System October 25, 2010 - 10:49am Addthis Park City, UT has completed several green projects recently. The town is installing a solar energy system on top of the Marsac Building at the end of the month. | Photo courtesy of Park City | Park City, UT has completed several green projects recently. The town is installing a solar energy system on top of the Marsac Building at the end of the month. | Photo courtesy of Park City | Paul Lester Communications Specialist for the Office of Energy Efficiency and Renewable Energy What does this project do? 80-panel solar energy system to be installed at Park City's Marsac Building. Recovery Act-funded system to generate up to 15% of the building's

470

Survey of hybrid solar heat pump drying systems  

Science Journals Connector (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

471

Property Tax Exemption for Solar and Wind Energy Systems | Department of  

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

Property Tax Exemption for Solar and Wind Energy Systems Property Tax Exemption for Solar and Wind Energy Systems Property Tax Exemption for Solar and Wind Energy Systems < Back Eligibility Commercial Industrial Residential Savings Category Solar Buying & Making Electricity Heating & Cooling Water Heating Wind Program Info State Maryland Program Type Property Tax Incentive Rebate Amount 100% real property tax exemption for solar and wind energy property Provider Department of Assessments and Taxation In May 2007, Maryland established a property tax exemption for residential solar energy systems. Under this law solar energy devices "installed to heat or cool a dwelling, generate electricity to be used in the dwelling, or provide hot water for use in the dwelling" were exempt from state -- but not local -- property taxes. However, in April 2008

472

A Practical Theory of Micro-Solar Power Sensor Networks JAEIN JEONG, Cisco Systems  

E-Print Network [OSTI]

9 A Practical Theory of Micro-Solar Power Sensor Networks JAEIN JEONG, Cisco Systems DAVID CULLER Reference Format: Jeong, J. and Culler, D. 2012. A practical theory of micro-solar power sensor networks planning for micro-solar power sensor networks" in Proceedings of the 7th International Conference

California at Berkeley, University of

473

Tarn Yates, Senior Thesis, Physics Department UCSC Summer 2003 Solar Cells in Concentrating Systems  

E-Print Network [OSTI]

. This is because the cost of solar panels compared to the amount of power they produce makes their purchaseTarn Yates, Senior Thesis, Physics Department UCSC Summer 2003 Solar Cells in Concentrating Systems Introduction 2 Theory i. The p-n junction. 6 ii. The p-n junction under an applied bias. 7 iii. Solar cell

474

Integration and Optimization of Trigeneration Systems with Solar Energy, Biofuels, Process Heat and Fossil Fuels  

E-Print Network [OSTI]

I.2. Solar Trigeneration System and Process Integration?????. 3 I.3. Integration of Refrigeration Cycles???????????? 9 I.4. Overall Objective of the Dissertation and Research Challenges??????????????????..??? 11 I.5. Problem... Decomposition????????????????. 12 I.6. Dissertation Overview????????????????? 12 II BACKGROUND AND LITERATURE REVIEW????????? 14 II.1. Solar Collectors???????????????????.. 14 II.2. Performance of the Concentrating Collectors???????? 25 II.3. Solar...

Tora, Eman

2012-02-14T23:59:59.000Z

475

XI. DIFFUSEGLOBAL CORRELATIONS: SEASONAL VARIATIONS Estimating the performance of a solar system  

E-Print Network [OSTI]

is measured on a horizontal surface and intensity on the tilted collector surface is calculated via a two39 XI. DIFFUSE­GLOBAL CORRELATIONS: SEASONAL VARIATIONS Estimating the performance of a solar system requires an accurate assessment of incident solar radiation. Ordinarily, solar radiation

Oregon, University of

476

Design and simulation of a small scale solar powered desalination system  

Science Journals Connector (OSTI)

This study presents a design for a solar photovoltaic powered, small-scale desalination system suitable for implementation in remote or water starved areas where a grid connection is not possible or feasible. The desalination method and solar array of ... Keywords: Simulink, desalination, design and simulation, performance prediction, solar power

J. R. Schrader; M. G. Rasul

2008-02-01T23:59:59.000Z

477

An overview of solar assisted air-conditioning system application in small office buildings in Malaysia  

Science Journals Connector (OSTI)

In many regions of the world especially tropical weather in Malaysia, the demand for cooling of indoor air is growing due to increasing comfort expectations and increasing cooling loads. Air-conditioning, the most common cooling mechanism for providing ... Keywords: Malaysian climatic conditions, absorption chiller, evacuated tube solar collector, high energy consumption, peak load demand, solar assisted air conditioning system, solar energy

Lim Chin Haw; Kamaruzzaman Sopian; Yusof Sulaiman

2009-02-01T23:59:59.000Z

478

DAWN: A JOURNEY TO THE BEGINNING OF THE SOLAR SYSTEM C.T. Russell(1)  

E-Print Network [OSTI]

-ray/neutron spectrometer, a magnetometer and a gravity investigation. Dawn uses solar arrays to power its xenon ion engine solar panels roughly 21 m tip-to-tip, a 5 m magnetometer boom and three ion thrusters, one of whichDAWN: A JOURNEY TO THE BEGINNING OF THE SOLAR SYSTEM C.T. Russell(1) , A. Coradini(2) , W

Zuber, Maria

479

REAL-TIME, WEB BASED ENERGY MONITORING SYSTEM FOR A SOLAR ACADEMIC BUILDING John H. Scofield  

E-Print Network [OSTI]

REAL-TIME, WEB BASED ENERGY MONITORING SYSTEM FOR A SOLAR ACADEMIC BUILDING John H. Scofield-time data on the world-wide-web from 14 sensors that monitor various aspects of energy flows to and from Field Station incorporates passive solar cooling and active solar heating, maximizes ergonomic

Scofield, John H.

480

Project focus: Complete design of an interactive solar panel system to be situated on  

E-Print Network [OSTI]

Project focus: · Complete design of an interactive solar panel system to be situated on top the effective area · Two types of solar cells: · 3 panel configurations: · Real-time power output data Si panels with 30.0o tilt c) 10 CdTe panels; 38.5o tilt · Solar insolation recorder, thermometer

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481

Manhattan Project: A Miniature Solar System, 1890s-1919  

Office of Scientific and Technical Information (OSTI)

John Joseph Thomson A MINIATURE SOLAR SYSTEM John Joseph Thomson A MINIATURE SOLAR SYSTEM (1890s-1919) Events > Atomic Discoveries, 1890s-1939 A Miniature Solar System, 1890s-1919 Exploring the Atom, 1919-1932 Atomic Bombardment, 1932-1938 The Discovery of Fission, 1938-1939 Fission Comes to America, 1939 The modern effort to uncover the inner structure of the atom began with the discovery of the electron by the English physicist J. J. Thomson (above) in 1897. Thomson proved that cathode rays were not some sort of undefined process occurring in "ether" but were in fact composed of extremely small, negatively charged particles. Dubbed electrons, their exact charge and mass were soon determined by John Townsend and Robert Millikan. Excerpt from the comic book "Adventures Inside the Atom." Click on this image or visit the "Library" to view the whole comic book. At the same time, discoveries relating to the curious phenomenon of radioactivity had also begun to propel atomic research forward. In 1896, the French physicist Antoine Becquerel detected the three basic forms of radioactivity, which were soon named alpha, beta, and gamma by Ernest Rutherford, a student of Thomson from New Zealand. Also in 1896, the husband-and-wife team of Marie and Pierre Curie began work in Paris on the emission of radiation by uranium and thorium. The Curies soon announced their discoveries of radium and polonium; they also proved that beta particles were negatively charged. In 1900, Becquerel realized that beta particles and electrons were the same things.

482

A Method of Decreasing Power Output Fluctuation of Solar Chimney Power Generating Systems  

Science Journals Connector (OSTI)

Severe fluctuation of power output is a common problem in the various generating systems of renewable energies. The hybrid energy storage system with water and soil is adopted to decrease the fluctuation of solar chimney power generating systems in the ... Keywords: Solar chimney power generating system, power output fluctuation, hybrid energy storage layer, collector, chimney

Meng Fanlong; Ming Tingzhen; Pan Yuan

2011-01-01T23:59:59.000Z

483

Optimization of a hybrid solar energy collector system  

E-Print Network [OSTI]

OPTIMIZATION OF A HYBRID SOLAR ENERGY COLLECTOR SYSTEM A Thesis by ALAN M. SHI NEMAN Submitted to the Graduate College of Texas A&N University in partial fulfillment of the requirement for the degree MASTER OF SCIENCE May 1981 Major Subject...: Mechanical Engineering THE STRUCTURAL IMPACT OF COMMODITY FARM PROGRAMS ON FARMS IN THE SOUTHERN TEXAS HIGH PLAINS A Thesis by CHRISTINA KAY SHIRLEY Submitted to the Graduate College of Texas A&M University in par'tial fulfillment of the requirement...

Shinkman, Alan M.

1981-01-01T23:59:59.000Z

484

Solar System tests of Ho?ava-Lifshitz black holes  

E-Print Network [OSTI]

In the present paper we consider the possibility of observationally testing Horava gravity at the scale of the Solar System, by considering the classical tests of general relativity (perihelion precession of the planet Mercury, deflection of light by the Sun and the radar echo delay) for the Kehagias-Sfetsos asymptotically flat black hole solution of Horava-Lifshitz gravity. All these gravitational effects can be fully explained in the framework of the vacuum solution of Horava gravity, and it is shown that the analysis of the classical general relativistic tests severely constrain the free parameter of the solution.

Francisco S. N. Lobo; Tiberiu Harko; Zoltán Kovács

2010-01-20T23:59:59.000Z

485

Solar-thermal-energy collection/storage-pond system  

DOE Patents [OSTI]

A solar thermal energy collection and storage system is disclosed. Water is contained, and the water surface is exposed directly to the sun. The central part of an impermeable membrane is positioned below the water's surface and above its bottom with a first side of the membrane pointing generally upward in its central portion. The perimeter part of the membrane is placed to create a watertight boundary separating the water into a first volume which is directly exposable to the sun and which touches the membranes first side, and a second volumn which touches the membranes second side. A salt is dissolved in the first water volume.

Blahnik, D.E.

1982-03-25T23:59:59.000Z

486

Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System with Thermal Storage  

E-Print Network [OSTI]

solar energy available would result in overcharging of the hot storage.of a solar-assisted HVAC system with thermal storage. Energystorage and solar- assisted HVAC for the purpose of optimizing its energy

Mammoli, Andrea

2014-01-01T23:59:59.000Z

487

Software-as-a-Service Optimised Scheduling of a Solar-Assisted HVAC System with Thermal Storage  

E-Print Network [OSTI]

performance of a solar-thermal- assisted hvac system. Energyfor rows of fixed solar thermal collectors using flatassisted by a 232 m solar thermal array providing heat to a

Mammoli, Andrea

2014-01-01T23:59:59.000Z

488

Dropouts of the outer electron radiation belt in response to solar wind stream interfaces: global positioning system observations  

Science Journals Connector (OSTI)

...radiation belt in response to solar wind stream interfaces: global...Calgary, Calgary, Alberta, Canada We present a statistical study...examined statistically for 67 solar wind stream interfaces (SIs...global positioning system|solar wind| 1. Introduction (a...

2010-01-01T23:59:59.000Z

489

Probing other solar systems with current and future adaptive optics  

SciTech Connect (OSTI)

Over the past decade, the study of extrasolar planets through indirect techniques--primarily Doppler measurements--has revolutionized our understanding of other solar systems. The next major step in this field will be the direct detection and characterization, via imaging and spectroscopy, of the planets themselves. To achieve this, we must separate the light from the faint planet from the extensive glare of its parent star. We pursued this goal using the current generation of adaptive optics (AO) systems on large ground-based telescopes, using infrared imaging to search for the thermal emission from young planets and developing image processing techniques to distinguish planets from telescope-induced artifacts. Our new Angular Differential Imaging (ADI) technique, which uses the sidereal rotation of the Earth and telescope, is now standard for ground-based high-contrast imaging. Although no young planets were found in our surveys, we placed the strongest limits yet on giant planets in wide orbits (>30 AU) around young stars and characterized planetary companion candidates. The imaging of planetary companions on solar-system-like scales (5-30 AU) will require a new generation of advanced AO systems that are an order of magnitude more powerful than the LLNL-built Keck AO system. We worked to develop and test the key technologies needed for these systems, including a spatially-filtered wavefront sensor, efficient and accurate wavefront reconstruction algorithms, and precision AO wavefront control at the sub-nm level. LLNL has now been selected by the Gemini Observatory to lead the construction of the Gemini Planet Imager, a $24M instrument that will be the most advanced AO system in the world.

Macintosh, B; Marois, C; Phillion, D; Poyneer, L; Graham, J; Zuckerman, B; Gavel, D; Veran, J; Wilhelmsen-Evans, J; Mellis, C

2008-09-08T23:59:59.000Z

490

Flexible Solar-Energy Harvesting System on Plastic with Thin-film LC Oscillators Operating Above ft for  

E-Print Network [OSTI]

Flexible Solar-Energy Harvesting System on Plastic with Thin-film LC Oscillators Operating Above ft- This paper presents an energy-harvesting system consisting of amorphous-silicon (a-Si) solar cells and thin of the energy-harvesting system. The solar module consists of solar cells in series operating at an output

491

Sandia National Laboratories: multiscale concentrated solar power  

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

concentrated solar power Solar Energy Research Institute for India and the United States Kick-Off On November 27, 2012, in Concentrating Solar Power, Energy, National Solar Thermal...

492

Sandia National Laboratories: Jawaharlal Nehru Solar National...  

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

Jawaharlal Nehru Solar National Solar Energy Mission Solar Energy Research Institute for India and the United States Kick-Off On November 27, 2012, in Concentrating Solar Power,...

493

Solar system tests do not rule out 1/R gravity  

E-Print Network [OSTI]

We argue that Solar system tests do not rule out 1/R gravity at least due to the reason addressed in Phys. Rev. D 74 (2006) 121501 [astro-ph/0610483] (ref. [1]) and subsequent published papers. Ref. [1] has not only modified the Einstein-Hilbert action but also has changed the boundary conditions since they altered the equations of motion. In Einstein-Hilbert action equations are second order, so the fall off of the fields suffices to single out a unique solution. In 1/R gravity the equations are fourth order, so we should impose additional boundary conditions. Perhaps the boundary condition we must impose is that the abrupt change in the second derivative of the metric near the surface of the Sun remains intact by adding `1/R' corrections to the equations of motion. The solution of 1/R gravity with this boundary condition remains consistent with the solar system tests. Ref. [1] assumes that as soon as they perturbatively modified the equations then the Ricci scalar becomes smooth on the surface of the Sun. This assumption is simply wrong because the boundary conditions and equations of motions are two different entities.

Qasem Exirifard

2009-12-28T23:59:59.000Z

494

First Fruits of the Spitzer Space Telescope: Galactic and Solar System Studies  

E-Print Network [OSTI]

This article provides a brief overview of the Spitzer Space Telescope and discusses its initial scientific results on galactic and solar system science.

M. Werner; G. Fazio; G. Rieke; T. Roellig; D. Watson

2006-06-22T23:59:59.000Z

495

Solar Thermochemical Advanced Reactor System, Wins R&D 100 Award...  

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

National Laboratory, the Solar Thermochemical Advanced Reactor System, or STARS, converts natural gas and sunlight into a more energy-rich fuel called syngas, which power plants...

496

Homeowners Guide to Financing a Grid-Connected Solar Electric System (Brochure)  

SciTech Connect (OSTI)

This guide provides an overview of the financing options that may be available to homeowners who are considering installing a solar electric system on their house.

Not Available

2010-10-01T23:59:59.000Z

497

Numerical simulation of Large Solar Hot Water system in storage tank.  

E-Print Network [OSTI]

??This research is aimed to study the storage tank design parameters effects on the efficiency of the large solar hot water system. Detailed CFD simulation… (more)

Shue, Nai-Shen

2012-01-01T23:59:59.000Z

498

Optimal Control Strategy of Solar Heating Systems Using a Long Term Heat Storage  

Science Journals Connector (OSTI)

...the estimation of the energy gain expected from optimizing the control of a given gas/solar heating system using a long term heat storage in the ground.

M. Boucher; M. Pottier; Y. Lenoir; R. Lidin…

1984-01-01T23:59:59.000Z

499

Integration of High Efficiency Solar Cells on Carriers for Concentrating System Applications .  

E-Print Network [OSTI]

??High efficiency multi-junction (MJ) solar cells were packaged onto receiver systems. The efficiency change of concentrator cells under continuous high intensity illumination was done. Also,… (more)

Chow, Simon Ka Ming

2011-01-01T23:59:59.000Z

500

Feasibility Analysis of Two Indirect Heat Pump Assisted Solar Domestic Hot Water Systems.  

E-Print Network [OSTI]

??This thesis is an analysis of the simulated performance of two indirect heat pump assisted solar domestic hot water (i-HPASDHW) systems compared to two base… (more)

Sterling, Scott Joseph

2011-01-01T23:59:59.000Z</