US20140202450A1 - Solar Array, Arrangement with a Plurality of Solar Arrays and Use of the Solar Array or the Arrangement - Google Patents

Solar Array, Arrangement with a Plurality of Solar Arrays and Use of the Solar Array or the Arrangement Download PDF

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Publication number
US20140202450A1
US20140202450A1 US14/129,120 US201214129120A US2014202450A1 US 20140202450 A1 US20140202450 A1 US 20140202450A1 US 201214129120 A US201214129120 A US 201214129120A US 2014202450 A1 US2014202450 A1 US 2014202450A1
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US
United States
Prior art keywords
heat
transfer fluid
transport line
fluid transport
line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/129,120
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English (en)
Inventor
Stefan Doetsch
Michael Kauf
Markus Wiesner
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KSB AG
Original Assignee
KSB AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KSB AG filed Critical KSB AG
Assigned to KSB AKTIENGESELLSCHAFT reassignment KSB AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KAUF, MICHAEL, WIESNER, Markus, DOETSCH, STEFAN
Publication of US20140202450A1 publication Critical patent/US20140202450A1/en
Abandoned legal-status Critical Current

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Classifications

    • F24J2/0477—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/20—Solar heat collectors using working fluids having circuits for two or more working fluids
    • F24J2/12—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S90/00—Solar heat systems not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

Definitions

  • the invention relates to a solar array and an arrangement with a plurality of solar arrays. Use of the solar array or the arrangement is furthermore described.
  • the solar array is, for example, a parabolic-trough solar array.
  • a parabolic-trough solar array has multiple parabolic-trough loops.
  • These parabolic-trough loops have heat-transfer fluid transport lines (heat-transfer fluid transport pipes) through which a heat-transfer fluid (heat-transfer medium), for example a thermal oil, is pumped.
  • parabolic-trough mirrors serve as a solar energy collector unit.
  • solar energy is fed, via a parabolic-trough mirror, into the heat-transfer fluid which is situated in the heat-transfer fluid transport line.
  • the heat-transfer fluid transport line is arranged in a focus line of the parabolic-trough mirror.
  • the heat-transfer fluid transport line is configured in the region of the parabolic-trough mirror as a so-called receiver tube. This means that the surface of the line is configured in such a way that as much sunlight as possible can be absorbed.
  • parabolic-trough solar arrays of a parabolic-trough power plant or the parabolic-trough loops of a parabolic-trough solar array are usually operated with the aid of a central main pump for pumping the heat-transfer fluid through the parabolic-trough loops.
  • the distribution of the heat-transfer fluid over the individual parabolic-trough loops is here controlled with the aid of control valves.
  • the central main pump is as a rule designed specifically for the respective solar array, i.e. the central main pumps are custom-made parts and hence expensive.
  • the object of the present invention is to provide a more cost-effective option than in the prior art for conveying the heat-transfer fluid through the parabolic-trough loops of a solar array.
  • a solar array with a heat-transfer fluid transport line for transporting a heat-transfer fluid, and at least one further heat-transfer fluid transport line for transporting a further heat-transfer fluid, wherein the heat-transfer fluid transport line and the further heat-transfer fluid transport line are coupled together to form a combined heat-transfer fluid transport line, the heat-transfer fluid transport line is connected to at least one line main pump for pumping the heat-transfer fluid through the heat-transfer fluid transport line, and the further heat-transfer fluid transport line is connected to at least one further line main pump for pumping the further heat-transfer fluid through the further heat-transfer fluid transport line.
  • Each of the heat-transfer fluid transport lines is preferably connected in each case to at least one solar energy collector unit for feeding solar energy into the heat-transfer fluid arranged in the respective heat-transfer fluid transport line.
  • the solar energy collector unit thus in particular has at least one parabolic-trough mirror.
  • the solar array has at least two loops (heat-transfer fluid transport lines).
  • the two heat-transfer fluid transport lines preferably form a closed circuit (combined heat-transfer fluid transport line) for a single heat-transfer fluid.
  • the further heat-transfer fluid is none other than the heat-transfer fluid.
  • the heat-transfer fluid is, for example, a thermal oil.
  • the heat-transfer fluid can also be molten salt.
  • the fundamental idea of the invention consists in replacing the central main pump for pumping fluid through the loops of the solar array or arrays with one main pump per loop, respectively. It is consequently possible to use fewer specific pumps, and hence cheaper ones, to pump the heat-transfer fluid through the individual loops.
  • a single line main pump is provided per loop. Further pumps per loop are preferably additionally present.
  • the heat-transfer fluid transport line is therefore connected to at least one line auxiliary pump to assist the pumping of the heat-transfer fluid through the heat-transfer fluid transport line and/or the further heat-transfer fluid transport line is connected to at least one further line auxiliary pump to assist the pumping of the further heat-transfer fluid through the further heat-transfer fluid transport line.
  • At least one of the pumps has a control device for controlling a volume flow rate of the respective heat-transfer fluid through the respective heat-transfer fluid transport line.
  • the controlling is, for example, temperature-controlled.
  • All of the pumps used are, however, preferably fitted with such control devices.
  • the transported quantities of heat-transfer fluid can thus be metered accurately into the individual loops.
  • each of the pumps is associated with its own control device, respectively.
  • two or more pumps are activated and/or controlled by a control device.
  • at least two of the pumps have a common control device for controlling a volume flow rate of the respective heat-transfer fluid through the respective heat-transfer fluid transport line.
  • the described solar array or the described arrangement is used in a solar power plant for converting solar energy into electricity.
  • FIG. 1 shows an embodiment of a solar array in accordance with an embodiment of the present invention.
  • FIG. 2 shows a solar array as known from the prior art.
  • a solar array 1 in the form of a parabolic-trough solar array is shown schematically.
  • the parabolic-trough solar array has a heat-transfer fluid transport line 11 for transporting a heat-transfer fluid, and at least one further heat-transfer fluid transport line 12 for transporting a further heat-transfer fluid.
  • Each of the heat-transfer fluid transport lines 11 and 12 is connected in each case to at least one solar energy collector unit in the form of parabolic-trough mirrors 113 and 123 for feeding solar energy into the heat-transfer fluid arranged in the respective heat-transfer fluid transport line 11 and 12 .
  • the heat-transfer fluid transport lines in this case parabolic-trough loops, are partially arranged in the focus lines of the respective parabolic-trough mirror.
  • the heat-transfer fluid transport line 11 and the further heat-transfer fluid transport line 12 together form a combined heat-transfer fluid transport line 10 .
  • the heat-transfer fluid and the further heat-transfer fluid are identical. In this embodiment it is a thermal oil.
  • the heat-transfer fluid transport line 11 is connected to a line main pump 111 for pumping the heat-transfer fluid through the heat-transfer fluid transport line 11 .
  • the further heat-transfer fluid transport line 12 is connected to a further line main pump 121 for pumping the further heat-transfer fluid through the further heat-transfer fluid transport line 12 .
  • control valve 112 and 122 is provided in each case per parabolic-trough loop.
  • a safety valve 116 and 126 is in each case additionally present.
  • control valves 114 and 124 are provided upstream from the main pumps 111 and 121 and on/off valves 115 and 125 downstream from the main pumps 111 and 121 .
  • FIG. 2 shows schematically a solar array with a central main pump 20 .
  • Control valves 114 and 124 are present in the heat-transfer fluid transport lines in order to be able to individually adjust the flow rate in the individual solar arrays or in the individual heat-transfer fluid transport lines.
  • the described parabolic-trough solar array may be employed in a solar power plant based on concentrated solar power (CSP) technology for converting solar energy into electricity.
  • CSP concentrated solar power

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)
US14/129,120 2011-06-30 2012-06-20 Solar Array, Arrangement with a Plurality of Solar Arrays and Use of the Solar Array or the Arrangement Abandoned US20140202450A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011078474A DE102011078474A1 (de) 2011-06-30 2011-06-30 Solarfeld, Anordnung mit einer Mehrzahl von Solarfeldern sowie Verwendung des Solarfelds oder der Anordnung
DE102011078474.8 2011-06-30
PCT/EP2012/061764 WO2013000776A1 (de) 2011-06-30 2012-06-20 Solarfeld, anordnung mit einer mehrzahl von solarfeldern sowie verwendung des solarfelds oder der anordnung

Publications (1)

Publication Number Publication Date
US20140202450A1 true US20140202450A1 (en) 2014-07-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US14/129,120 Abandoned US20140202450A1 (en) 2011-06-30 2012-06-20 Solar Array, Arrangement with a Plurality of Solar Arrays and Use of the Solar Array or the Arrangement

Country Status (5)

Country Link
US (1) US20140202450A1 (de)
EP (1) EP2726796A1 (de)
CN (1) CN103797312A (de)
DE (1) DE102011078474A1 (de)
WO (1) WO2013000776A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160011023A1 (en) * 2014-07-11 2016-01-14 Gemtek Technology Co., Ltd. Surveillance system with electricity converting module and sensors and method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016112784A1 (de) * 2016-07-12 2018-01-18 Viessmann Werke Gmbh & Co Kg Kollektorfeld, Energieversorgungssystem mit einem Kollektorfeld sowie Verfahren zum Betreiben eines Energieversorgungssystems
CN114111061B (zh) * 2021-11-25 2022-07-05 斯玛特储能技术有限公司 一种槽式集热场升压混合喷油调节系统及油温调节方法

Citations (5)

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US2532856A (en) * 1946-07-13 1950-12-05 Allis Chalmers Mfg Co Liquid feeding system
US4000734A (en) * 1975-11-06 1977-01-04 Matlock William C Solar energy converter
DE20000759U1 (de) * 2000-01-18 2000-08-03 Hintze Hartmut Solarthermisteuerung
US7171812B2 (en) * 2004-03-15 2007-02-06 Powerstreams, Inc. Electric generation facility and method employing solar technology
US8210163B2 (en) * 2006-12-20 2012-07-03 Insig Seong Semi-cylindrical solar collecting apparatus for solar boiler

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WO1983001103A1 (en) * 1981-09-17 1983-03-31 Frederick Brian Mckee Improvement in or relating to windows
CN2171821Y (zh) * 1993-09-25 1994-07-13 北京市西城区新开通用试验厂 一种梯级升温数控太阳能锅炉
DE102006024703A1 (de) * 2006-05-26 2007-11-29 Robert Bosch Gmbh Verfahren zum Betreiben einer Solaranlage
WO2009109220A1 (de) * 2008-03-04 2009-09-11 Conergy Deutschland Gmbh Solaranlage mit verbessertem wärmeträgerfluidkreislauf
DE102009047204B9 (de) * 2009-11-26 2013-12-19 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren, Regelungseinrichtung zum Betreiben eines solarthermischen Kraftwerks und Verfahren zum Anfahren eines solarthermischen Kraftwerks
US8455755B2 (en) * 2009-12-07 2013-06-04 Electrotherm Concentrated photovoltaic and thermal solar energy collector
CN201852307U (zh) * 2010-10-11 2011-06-01 卓卫民 一种太阳能真空管矩阵集热系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532856A (en) * 1946-07-13 1950-12-05 Allis Chalmers Mfg Co Liquid feeding system
US4000734A (en) * 1975-11-06 1977-01-04 Matlock William C Solar energy converter
DE20000759U1 (de) * 2000-01-18 2000-08-03 Hintze Hartmut Solarthermisteuerung
US7171812B2 (en) * 2004-03-15 2007-02-06 Powerstreams, Inc. Electric generation facility and method employing solar technology
US8210163B2 (en) * 2006-12-20 2012-07-03 Insig Seong Semi-cylindrical solar collecting apparatus for solar boiler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160011023A1 (en) * 2014-07-11 2016-01-14 Gemtek Technology Co., Ltd. Surveillance system with electricity converting module and sensors and method thereof
US9404784B2 (en) * 2014-07-11 2016-08-02 Gemtek Technology Co., Ltd. Surveillance system with electricity converting module and sensors and method thereof

Also Published As

Publication number Publication date
DE102011078474A1 (de) 2013-01-03
EP2726796A1 (de) 2014-05-07
WO2013000776A1 (de) 2013-01-03
CN103797312A (zh) 2014-05-14

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AS Assignment

Owner name: KSB AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DOETSCH, STEFAN;KAUF, MICHAEL;WIESNER, MARKUS;SIGNING DATES FROM 20140114 TO 20140314;REEL/FRAME:032542/0121

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION