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WO2011064365A2 - Système d'interconnexion thermo-solaire, utilisation dudit système d'interconnexion thermo-solaire, et centrale thermo-solaire équipée dudit système d'interconnexion thermo-solaire - Google Patents

Système d'interconnexion thermo-solaire, utilisation dudit système d'interconnexion thermo-solaire, et centrale thermo-solaire équipée dudit système d'interconnexion thermo-solaire Download PDF

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Publication number
WO2011064365A2
WO2011064365A2 PCT/EP2010/068416 EP2010068416W WO2011064365A2 WO 2011064365 A2 WO2011064365 A2 WO 2011064365A2 EP 2010068416 W EP2010068416 W EP 2010068416W WO 2011064365 A2 WO2011064365 A2 WO 2011064365A2
Authority
WO
WIPO (PCT)
Prior art keywords
solar thermal
interconnection system
heat
solar
heat pipe
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.)
Ceased
Application number
PCT/EP2010/068416
Other languages
English (en)
Other versions
WO2011064365A3 (fr
Inventor
Hagai Aran
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Concentrated Solar Power Ltd
Siemens Corp
Original Assignee
Siemens AG
Siemens Concentrated Solar Power Ltd
Siemens Corp
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 Siemens AG, Siemens Concentrated Solar Power Ltd, Siemens Corp filed Critical Siemens AG
Publication of WO2011064365A2 publication Critical patent/WO2011064365A2/fr
Publication of WO2011064365A3 publication Critical patent/WO2011064365A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
    • F24S10/45—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
    • 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
    • F24S10/90—Solar heat collectors using working fluids using internal thermosiphonic circulation
    • F24S10/95—Solar heat collectors using working fluids using internal thermosiphonic circulation having evaporator sections and condenser sections, e.g. heat pipes
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • 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

Definitions

  • This invention relates to a solar thermal interconnection system; the use of the solar thermal interconnection system and a power plant with the solar thermal interconnection system.
  • a sun energy collecting unit of a sun field power plant based on the concentrated solar power technique is for instance a parabolic trough collector with parabolic mirrors and a heat receiver tube.
  • the heat receiver tube is arranged in a focal line of the mirrors.
  • a heat transfer fluid e.g. a thermo- oil.
  • the energy of the sunlight is coupled into the heat transfer fluid.
  • parabolic trough receivers comprise a reflector formed as a trough with a parabolic cross-section and a inner surface which reflects the sunlight.
  • a heat receiver tube with a heat transfer fluid (HTF) flowing there through is positioned in a focus line of the reflecting surface of the parabolic mirror for solar radiation collection.
  • the HTF collects heat of solar radiation which impinges on the receiver surface and transfers it to a power generation block (for example, a steam-electric power plant) of a solar thermal power plant.
  • a trough axis along a longitudinal alignment of the trough is oriented in a general north-south direction while the
  • tracking system rotates the trough east to west (rotating around the north-south axis) in order to face the sun as much as possible between sunrise and sunset.
  • the elevation of the solar ecliptic over the solar field location on the surface of earth is dependant on the latitude of the location, and changes over the course of the year. This effect causes a reduction in the receiver's efficiency due to the incident angle between the sun's beam and the plane defined by east-west axis and the normal to the earth surface. This reduction is called Incident Angle Modifier (IAM) .
  • IAM Incident Angle Modifier
  • a solar thermal interconnection system is provided with at least one parabolic trough collector with at least one parabolic mirror having a sunlight reflecting surface for concentrating sunlight in a focal line of the parabolic mirror; at least one heat pipe with at least one heat pipe working fluid for absorbing solar energy, wherein the heat pipe is located in the focal line of the parabolic mirror; at least one heat absorber system with a heat absorber medium; wherein the heat pipe and the heat absorber system are thermally coupled such that a heat transfer from the heat pipe working fluid to the absorber medium can occur.
  • the heat absorber system comprises a heat receiver tube.
  • the absorber medium is a heat transfer fluid.
  • a use of a solar thermal interconnection system is disclosed to provide thermal energy.
  • This use includes a use for transferring solar energy into electrical energy.
  • the use includes a use in a plant for manufacturing goods by the aid of the thermal energy. For instance, these goods are goods of the chemical industry.
  • a solar thermal power plant for transferring solar energy into electrical energy with at least one solar thermal interconnection system, wherein the parabolic trough collector is oriented with its longitudinal alignment in north-south direction.
  • a plurality of solar thermal interconnection systems is set up.
  • a tracking system is set up. For instance the tracking system is configured for tilting the heat pipe to lie in a plane substantially perpendicular to a path of incident solar radiation and/or for tilting said parabolic mirror to
  • the heat pipe working fluid maintains its focal line and vertex aligned along a line parallel the path of incident solar radiation.
  • the heat absorber medium comprises a heat transfer fluid.
  • the heat transfer fluid is a thermo-oil.
  • a thermo-salt or a mixture of different thermo- salts is possible, too.
  • a power block working fluid of a power generating block for generating electrical energy comprises a power block working fluid of a power generating block for generating electrical energy.
  • a heat absorber medium comprises water.
  • the power block working fluid is based on Sulfur.
  • Figure 1 shows a heat pipe.
  • Figure 2 shows a cross section of the heat pipe of figure 1 along the line II-II.
  • FIG. 3 shows a detail of the solar thermal interconnection system.
  • Figure 4 shows a sun field of a solar power thermal power plant with the solar thermal interconnection system.
  • Figure 5 shows a perspective view of the sun field.
  • the heat absorber system comprises a heat receiver tube which is filled with a heat transfer fluid (HTF) .
  • the heat transfer fluid is the absorber medium of the absorber system.
  • each HTF pipe 10 is connected to a plurality of heat pipes 12, each protruding there from.
  • each heat pipe 12 is associated with a parabolic reflector 22 (figure 5) .
  • each heat pipe 12 comprises a transparent casing 14 with an evacuated interior 16, and a sealed thermal pipe 18 therein.
  • the thermal pipe 18 carries a heat pipe working fluid, which occupies (when in liquid form) only a small percentage of the volume of the thermal pipe. The remainder of the interior volume of the thermal pipe 18 may be at least partially evacuated.
  • One end of the thermal pipe 18 protrudes into the interior of the HTF pipe 10, where it is within the HTF
  • the portion of the thermal pipe 18 within the casing 14 is referred to as a hot interface 18a
  • the portion of the thermal pipe within the HTF pipe 10 (and in contact with the HTF) is referred to as the cold interface 18b.
  • the cold interface 18b may be provided with a
  • each may be positioned independently of one another. For example, in some applications, it is advantageous to dispose the pipes carrying the HTF at a certain angle, for example to take advantage of heat
  • the HTF may be a thermal oil which is passed through a heat exchanger of the power block for heating working fluid of the power generation block.
  • the HTF may be the working fluid of the power generation block, for example in a direct steam generation configuration of the solar thermal power plant.
  • the thermal pipe 18 may be provided with a mechanism (not shown) for regulating the pressure therein. In this way, the temperature of the working fluid thereof, and thus of the HTF, can be regulated based on the requirements of the power plant.
  • configurations for providing the regulation include a gas load pipe, excess liquid, and vapor flow modulation.
  • the working fluid may be any appropriate material, for example based on the desired temperature range of the HTF.
  • materials for use as working fluid include water, mercury, magnesium, potassium, sodium, and lithium.
  • a second heat pipe may be provided.
  • one heat pipe 12 would be extending upwardly from the HTF pipe 10, and a second downwardly there from.
  • the heat pipe 12 which extends upwardly may be provided with any known technology for use thereof in such a configuration,
  • a fine fiber bundled wick including, but not limited to, a fine fiber bundled wick, thin grooves formed on the inner surface of the thermal pipe 18, a screen mesh, or a sintered powder.
  • the system may be configured to tilt and/or rotate to track the sun. For example, rotation may be facilitated about the longitudinal axis of the HTF pipe 10 in order to track the sun as the height of the ecliptic (i.e., the solar elevation) changes throughout time (e.g. day or year) .
  • rotation of each parabolic mirror about its focus i.e., about the longitudinal axis of the heat pipe 12

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)
  • Photovoltaic Devices (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

L'invention concerne un système d'interconnexion thermo-solaire comportant : au moins un collecteur cylindro-parabolique comportant au moins un miroir parabolique présentant une surface réfléchissant la lumière solaire qui concentre la lumière solaire dans une ligne focale du miroir parabolique; au moins un tube à chaleur contenant au moins un fluide caloporteur qui absorbe l'énergie solaire, le tube à chaleur étant placé dans la ligne focale du miroir parabolique; au moins un système absorbeur de chaleur contenant un agent absorbeur de chaleur. Le tube à chaleur et le système absorbeur de chaleur sont accouplés thermiquement de telle manière qu'un transfert de chaleur peut avoir lieu du fluide caloporteur vers l'agent absorbeur. Le système absorbeur de chaleur comprend par exemple un tube récepteur de chaleur. L'agent absorbeur est un fluide de transfert de chaleur. L'invention concerne par ailleurs une centrale thermo-solaire permettant la transformation de l'énergie solaire en énergie électrique, comportant au moins un système d'interconnexion thermo-solaire, le collecteur cylindro-parabolique étant orienté en direction nord-sud selon son alignement longitudinal. On installe de préférence une pluralité de systèmes d'interconnexion thermo-solaire.
PCT/EP2010/068416 2009-11-30 2010-11-29 Système d'interconnexion thermo-solaire, utilisation dudit système d'interconnexion thermo-solaire, et centrale thermo-solaire équipée dudit système d'interconnexion thermo-solaire Ceased WO2011064365A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26509909P 2009-11-30 2009-11-30
US61/265,099 2009-11-30

Publications (2)

Publication Number Publication Date
WO2011064365A2 true WO2011064365A2 (fr) 2011-06-03
WO2011064365A3 WO2011064365A3 (fr) 2011-08-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/068416 Ceased WO2011064365A2 (fr) 2009-11-30 2010-11-29 Système d'interconnexion thermo-solaire, utilisation dudit système d'interconnexion thermo-solaire, et centrale thermo-solaire équipée dudit système d'interconnexion thermo-solaire

Country Status (1)

Country Link
WO (1) WO2011064365A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013044981A1 (fr) * 2011-09-30 2013-04-04 Siemens Aktiengesellschaft Système d'interconnexion thermique solaire avec collecteur à miroir de fresnel linéaire, utilisation du système d'interconnexion thermique solaire et centrale thermique solaire avec système d'interconnexion thermique solaire

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714774A1 (de) * 1997-04-10 1998-10-15 Peter Stumpf Wärmerohr, insbesondere für einen Röhrenkollektor
US7971587B2 (en) * 2007-10-31 2011-07-05 The Regents Of The University Of California Apparatus and method for solar thermal energy collection
WO2009116073A2 (fr) * 2008-02-08 2009-09-24 Alp Multitech Pvt. Ltd. Cogénération d'électricité et de refroidissement à partir de la chaleur du soleil et des déchets industriels/déchets biologiques (biogaz)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013044981A1 (fr) * 2011-09-30 2013-04-04 Siemens Aktiengesellschaft Système d'interconnexion thermique solaire avec collecteur à miroir de fresnel linéaire, utilisation du système d'interconnexion thermique solaire et centrale thermique solaire avec système d'interconnexion thermique solaire

Also Published As

Publication number Publication date
WO2011064365A3 (fr) 2011-08-25

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