US20100071683A1 - Fresnel solar collector arrangement - Google Patents

Fresnel solar collector arrangement Download PDF

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Publication number
US20100071683A1
US20100071683A1 US11/990,721 US99072106A US2010071683A1 US 20100071683 A1 US20100071683 A1 US 20100071683A1 US 99072106 A US99072106 A US 99072106A US 2010071683 A1 US2010071683 A1 US 2010071683A1
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US
United States
Prior art keywords
receiver
solar collector
primary
collector arrangement
fresnel solar
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
US11/990,721
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English (en)
Inventor
Martin Selig
Johannes Gottlieb
Max Mertins
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority claimed from PCT/DE2006/001441 external-priority patent/WO2007022756A2/de
Publication of US20100071683A1 publication Critical patent/US20100071683A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • F24S23/77—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with flat reflective plates
    • 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
    • F24S23/80—Arrangements for concentrating solar-rays for solar heat collectors with reflectors having discontinuous faces
    • 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
    • F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
    • F24S30/425—Horizontal axis
    • 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
    • F24S50/20—Arrangements for controlling solar heat collectors for tracking
    • 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
    • F24S2023/87—Reflectors layout
    • F24S2023/872—Assemblies of spaced reflective elements on common support, e.g. Fresnel reflectors
    • 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
    • F24S2030/10—Special components
    • F24S2030/13—Transmissions
    • F24S2030/136—Transmissions for moving several solar collectors by common transmission elements
    • 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
    • F24S2030/10—Special components
    • F24S2030/15—Bearings
    • 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
    • Y02E10/47—Mountings or tracking

Definitions

  • the invention relates to a Fresnel solar collector arrangement.
  • This is understood to mean a line-focusing system in which multiple mirror strips disposed parallel to a receiver are made to track the position of the sun, and the solar radiation is guided onto a fixed absorber tube in which a heat storage medium flows.
  • a secondary reflector assigned to the absorber tube guides the radiation onto the focal line essentially formed by the absorber tube.
  • the absorber tube and the secondary reflector form the receiver disposed in elevated manner above the mirror strips.
  • Such a Fresnel solar collector is currently in operation in Australia, for example, in a field trial.
  • the heat that is produced can be utilized as process heat, or it can be converted into an electric current, for example by means of a Stirling motor.
  • Parabolic trough collectors consist of a reflector that has the shape of a parabolic cylinder.
  • the light is focused onto a line, the focal line.
  • the absorber tube of the parabolic trough collector which absorbs the concentrated radiation and passes it on to the medium flowing through, is situated in this line.
  • the medium is typically heated to values of approximately 400° C.
  • the absorber can be surrounded by a glass tube. A vacuum prevails in the interstice between absorber tube and glass tube, for insulation.
  • the “solar steam” produced in this way can also be utilized directly for process heat applications, or for conventional steam power plants and cogeneration power plants.
  • flat collectors and CPC collectors are known as further types of collectors.
  • the efficiency of the Fresnel solar collector essentially depends on how well the reflected solar radiation is focused onto the absorber tube.
  • the primary mirrors assigned to the absorber tube track the sun. Only in this way can acceptable efficiencies be achieved for the system. This usually takes place by means of an electric motor assigned to each primary mirror.
  • the electric motors are usually provided with a timing device, so that tracking is more a question of controlling than of regulating.
  • Fresnel solar collectors achieve their best efficiencies in regions with the highest incoming solar radiation, for example in desert regions, where extreme temperature variations from degrees below zero to degrees above zero of far in excess of 40° C. are at least not unusual.
  • the materials and supporting structures used are exposed to considerable stresses, in this connection, whereby thermal deformations of the material are practically unavoidable and therefore can lead to angular deviations within the entire system, which can be manifested in the double-digit percentage range in the efficiency of the entire system.
  • Even a small angle deviation in the supporting structure of the mirror arrangement can lead to having a large part of the radiation reflected by the primary mirrors not focused onto the absorber tube but rather reflected past the absorber tube.
  • individual control i.e. individual regulation and coordination of the various electric motors for tracking, i.e. controlling the panning movement of the mirrors is accompanied by considerable regulation and control effort, making the system somewhat susceptible to malfunctioning.
  • the invention is based on the task of configuring the system more robustly, overall, and of improving its efficiency as much as possible.
  • the mirror supporting framework is mounted in a fixed position in the region of the receiver supporting framework and/or in connection with the receiver supporting framework, and furthermore is mounted in sliding manner, i.e. free from constraint, it is assured, in the case of unavoidable thermal expansion of the supporting framework as a result of the effects of heat, that the mirror supporting framework balances out these corresponding changes.
  • the receiver supporting framework and the mirror supporting framework are essentially made from the same material and are essentially mounted in fixed manner at the same location. If thermal expansions or contractions of the material occur, one can at least approximately assume that the alternating expansions of the supporting frameworks take place to the same extent. For example, the receiver mast is then expanded, as the result of the effect of heat, in approximately the same way as the mounting rails of the primary mirrors disposed as the mirror framework. Because the receiver framework and the mirror supporting framework are at least essentially disposed orthogonal relative to one another and are made from the same material, and therefore have the same expansion coefficient, it is assured that the angle relationships do not change relative to one another or, at most, change only slightly.
  • the receiver of the Fresnel solar collector arrangement can be mounted as an absorber tube on a row of receiver masts, whereby the mirror supporting framework can also be mounted in a fixed location at the same point, if necessary using the same concrete pedestal.
  • receiver mast and mirror supporting framework are advantageously made from steel 37 , in each instance, and therefore exhibit largely the same expansion coefficient.
  • some of the primary mirrors mounted on the mirror supporting framework are combined to form a primary mirror group, which in turn are mechanically coupled by means of a common mechanical setting element, for tracking purposes, and thus are made to track the sun.
  • a common setting element complicated coordination, complicated control and regulation of the electric motors used is eliminated, at least within the primary mirror group in question.
  • the entire primary mirror group can be adjusted by means of a common setting element, whereby the relative angle relationship between the primary mirrors is maintained at all times.
  • This common panning movement is achieved as a result of connecting the primary mirrors of a primary mirror group by means of a tracking shaft. Due to the movement of the connecting rod when aligning the primary mirrors, a rotation of the tracking shaft is brought about, which is uniformly transferred to the entire primary mirror group by means of the connection.
  • the tracking shaft is mounted, at regular intervals, in roller bearing blocks that surround the shaft but that only support it using roller elements.
  • roller elements permit axial rotation of the tracking shaft, and are formed in barrel-like shape, in other words are essentially cylindrical, whereby their mantle surfaces bulge out. This shape makes it possible to dispose the tracking shaft not only along planar surfaces but also, if required, to guide it along its path over different heights.
  • the shaft can be positioned at a slant on the roller elements, so that simultaneous slanted positioning of the roller bearing block can be eliminated.
  • mechanical coupling of the primary mirrors combined to form a group can be implemented by means of a common connecting rod, by way of which the primary mirrors mounted on the mirror supporting framework so as to pivot are pivoted relative to the absorber tube, as a function of the position of the sun, i.e. the time of day or, to say it better, they are made to track the sun.
  • the connecting rod is driven by an electric motor, using a linear motor, whereby the connecting rod, which is disposed orthogonally relative to the longitudinal expanse of the absorber tube, is moved inward or outward, as a function of the sun's position, by means of the linear motor.
  • water vapor or thermal oil flows inside the absorber tube and is heated to a temperature of up to approximately 400° C. by the reflected radiation.
  • the thermal medium heated in this way can then be passed to further use, in known manner, or can be used to produce electricity.
  • a secondary reflector is additionally assigned to the absorber tube, which reflector surrounds the absorber tube essentially like a shield, and thus captures and deflects possible scattered radiation from the primary mirrors, in such a way that this scattered radiation is also focused onto the absorber tube.
  • the secondary reflector is also disposed so that the absorber tube lies essentially in the focal line of the secondary reflector.
  • the linear motor is also disposed essentially centrally, i.e. approximately in the region of the imaginary line formed by the receiver masts disposed in a row.
  • one or more primary mirror groups driven by one or more connecting rods, on the left of the absorber tube, and one or more primary mirror groups driven by one or more connecting rods, on the right of the absorber tube can be driven in such a way that a time-controlled panning movement of the primary mirrors, i.e. a panning movement that tracks the sun, takes place relative to the absorber tube.
  • the linear motors can be connected to a common control and/or regulation unit, since the relative movements to be carried out by the connecting rods are exactly identical over the entire length of the absorber tube, and thus common regulation is possible for the entire system.
  • FIG. 1 a Fresnel solar collector arrangement in cross-section
  • FIG. 2 a detail of the Fresnel solar collector arrangement in a schematic diagram
  • FIG. 3 a control diagram for the Fresnel solar collector arrangements shown in FIGS. 1 and 2 .
  • the Fresnel solar collector arrangement consists of a receiver 1 mounted on a receiver mast 2 .
  • the receiver mast 2 is mounted in a fixed bearing 3 that simultaneously represents the center axis of a mirror supporting framework 4 disposed with angle symmetry.
  • the mirror supporting framework 4 essentially consists of supporting rails 5 made from the same material as the receiver mast 2 , namely steel 37 in the case of the present exemplary embodiment, and extend orthogonally outward, in each instance, from the longitudinal axis of the receiver 1 .
  • the receiver 1 essentially consists of an absorber tube in which a thermal medium that acts as a heat storing material flows. This can be simple steam or a thermal oil.
  • the absorber tube is generally surrounded by a secondary reflector that captures any stray radiation of the mirror arrangement and deflects it onto the absorber tube.
  • the primary mirrors 6 , 6 ′ are mounted to pivot on both sides of the supporting structure, i.e. essentially with mirror symmetry, on mirror paths relative to the receiver 1 set up in elevated manner.
  • the mirror paths are mounted on the mirror supporting framework 4 essentially in such a way that the solar radiation acting on the Fresnel solar collector arrangement is reflected and deflected in such a way that it is focused onto the absorber tube in the region of the receiver 1 .
  • the absorber tube forms the focal line of the primary mirrors 6 , 6 ′ mounted on the mirror supporting framework 4 .
  • several primary mirrors 6 , 6 ′ are to each receiver 1 at a different distance, i.e. at an increasing orthogonal distance from the central axis of the mirror supporting framework 4 defined by the absorber tube.
  • the mirror supporting framework 4 itself is, in turn, mounted with foot elements 7 connected only by means of slide bearings to the supporting rails 5 , which extend in fixed manner, orthogonal relative to the longitudinal expanse of the receiver 1 .
  • the receiver mast 2 and the supporting rails 5 which are disposed one behind the other in the longitudinal expanse of the receiver 1 , are fixed in place only in the fixed bearing 3 , and otherwise are mounted in constraint-free manner, so as to slide. Since both the receiver mast 2 and the supporting rails 5 are made from steel 37 and therefore possess essentially identical expansion coefficients, any thermal expansion of the two supporting frameworks is also essentially the same.
  • the longitudinal expansion of the receiver mast 2 is thus essentially compensated in that any angle error in the arrangement, with the possible consequence that the absorber tube moves out of the focal line of the mirror arrangement, is compensated by a similar expansion of the supporting rail 5 .
  • the Fresnel solar collector arrangement according to FIG. 1 is thus essentially temperature-compensated in self-regulating manner, in that any material expansions and contractions resulting from the absolutely normal extreme temperature variations in the regions of use of Fresnel solar collector arrangements are reciprocally balanced out.
  • the losses due to scattering of the reflected radiation which have a very negative effect on the yield factor of the system, are avoided to a great extent.
  • Complicated techniques for compensating the changes in length of the materials used, due to temperature can therefore be eliminated, to a great extent.
  • the arrangement is advantageously supplemented in that the primary mirrors 6 , 6 ′ assigned to the individual supporting rails 5 , are, in each instance, connected with the supporting rail 5 , in each instance, by means of a mirror support 8 , 8 ′, so as to pivot.
  • FIG. 1 it is known from the prior art to assign a separate electric motor to each primary mirror 6 , 6 ′ and to achieve tracking of the primary mirrors 6 , 6 ′ according to the position of the sun relative to the receiver 1 , using this electric motor drive.
  • FIG. 2 several primary mirrors 6 , 6 ′ are combined to form a primary mirror group that is characterized by being mechanically coupled with one another by means of a common setting element, namely a connecting rod 10 , 10 ′.
  • the connecting rod 10 , 10 ′ is driven in linearly displaceable manner, by an electric motor, using a linear drive 11 , whereby the movement of the connecting rods 10 , 10 ′ on the left and right of the receiver mast 2 , and thus the movement of the receiver 1 , go in opposite directions by means of a deflection mechanism not illustrated further here.
  • the connecting rods 10 , 10 ′ on the left and right of the receiver 1 are thus either both moved inward or both moved outward.
  • one of the two connecting rods 10 or 10 ′ acts only indirectly on the primary mirrors 6 , 6 ′, namely by way of a deflection mechanism that leads to the aforementioned opposite movement.
  • This brings about the result that the mirrors disposed on the right and left are turned toward or away from the centrally disposed reflector or absorber tube at precisely the same angle relationship.
  • the solution shown according to FIG. 2 therefore makes it possible to create mechanical coupling by way of a simple connecting rod 10 , 10 ′, using a single electric motor, and thus to eliminate complicated coordination of several individual electric motors, at least along one supporting rail 5 , i.e. within a primary mirror group, and, instead, to allow precise tracking following the position of the sun, using a single common linear drive, because of the angle accuracy of the arrangement.
  • this can be a control unit and/or a regulation unit.
  • a common regulator 12 is assigned to the linear motors 11 , 11 ′, 11 ′′, to which one or more connecting rods 10 , 10 ′ or supporting rails 5 are assigned, in each instance.
  • this regulator 12 can be controlled in time-controlled manner, in the sense of a control, according to a predefined program that associates every time of day with a certain position of the sun and thus with an angle position of the primary mirrors 6 .
  • the regulator 12 is data-connected to a time detection device 14 .
  • the regulator 12 can also be connected to a true actual value/reference value comparator 13 , whereby the actual value and target value either compare the real position of the sun to the target value default or, on the other hand, the efficiency of the system is directly fed back to the regulating variable, for example by evaluating the radiation intensity achieved or the current yield of electricity as the actual value, in order to determine any regulatory deviation.
  • the angle positioning of the primary mirrors 6 , 6 ′ can then be re-adjusted using the setting element.
  • the connecting rod 10 , 10 ′ more or less represents the setting element for the regulation or tracking of the primary mirror arrangement, whereby the electric motor 11 , 11 ′, 11 ′′ is also part of this setting element.
  • the triggering or regulation of the linear motors 11 , 11 ′, 11 ′′ is implemented by means of a common regulator 12 .
  • FIGS. 4 and 5 show a roller bearing block 15 in which a tracking shaft 17 is guided.
  • the tracking shaft 17 connects the primary mirrors 6 , 6 ′ of a primary mirror group and ensures parallel rotation of all the mirrors of this group as a result of tracking initiated by the movement of a connecting rod 10 , 10 ′.
  • the roller bearing block 15 surrounds the tracking shaft 17 , whereby the shaft is mounted on roller elements 16 , 16 ′, 16 ′′ in the roller bearing block 15 .
  • These roller elements 16 , 16 ′, 16 ′′ are essentially cylindrical, but have concave mantle surfaces on which the tracking shaft 17 is supported. As a result of this barrel-like shaping, it is possible to position the tracking shaft 17 at a slant as shown in FIG.
  • roller bearing block 15 remains in its perpendicular position. This allows laying the tracking shaft 17 along slanted surfaces, for example on hills or on uneven terrain. In this connection, one must, of course, ensure that the receiver 1 is not covered up relative to the primary mirrors 6 , 6 ′ in question.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)
  • Road Signs Or Road Markings (AREA)
US11/990,721 2005-08-20 2006-08-18 Fresnel solar collector arrangement Abandoned US20100071683A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102005039404.3 2005-08-20
DE102005039404 2005-08-20
EP06002605A EP1754942B1 (de) 2005-08-20 2006-02-09 Fresnel-Solar-Kollektor-Anordnung
EP06002605.1 2006-02-09
PCT/DE2006/001441 WO2007022756A2 (de) 2005-08-20 2006-08-18 Fresnel-solar-kollektor-anordnung

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US20100071683A1 true US20100071683A1 (en) 2010-03-25

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US11/990,721 Abandoned US20100071683A1 (en) 2005-08-20 2006-08-18 Fresnel solar collector arrangement

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US (1) US20100071683A1 (zh)
EP (1) EP1754942B1 (zh)
CN (1) CN100588887C (zh)
AP (1) AP2152A (zh)
AT (1) ATE508336T1 (zh)
BR (1) BRPI0614934A2 (zh)
DE (2) DE502006009427D1 (zh)
MA (1) MA29802B1 (zh)
TN (1) TNSN08075A1 (zh)
ZA (1) ZA200802568B (zh)

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US20100032016A1 (en) * 2008-07-09 2010-02-11 Gee Randall C Solar collectors having slidably removable reflective panels for use in solar thermal applications
US20100043776A1 (en) * 2008-08-22 2010-02-25 Skyfuel, Inc. Hydraulic-Based Rotational System for Solar Concentrators that Resists High Wind Loads Without a Mechanical Lock
US20100059046A1 (en) * 2007-03-05 2010-03-11 Nolaris Sa Man Made Island With Solar Energy Collection Facilities
US20100132695A1 (en) * 2007-03-05 2010-06-03 Nolaris Sa Man Made Island With Solar Energy Collection Facilities
US20110005513A1 (en) * 2007-08-27 2011-01-13 Mills David R Linear fresnel solar arrays
US20110162691A1 (en) * 2011-01-21 2011-07-07 John Hartelius Photovoltaic module support system
WO2012097048A2 (en) * 2011-01-12 2012-07-19 Sunquest Vi, Inc. Solar collection system and solar collector therefor
US20120260907A1 (en) * 2011-04-15 2012-10-18 King Saud University Solar Heating Apparatus and Methods
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US20150107580A1 (en) * 2012-05-09 2015-04-23 Schaeffler Technologies Gmbh & Co. Kg Bearing arrangement and parabolic trough collector
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WO2015139152A1 (es) * 2014-03-21 2015-09-24 Mendel Horwitz Eduardo David Concentrador solar con espejos planos orientados de norte-sur y espejo secundario cilindro-parabólico con absorbedor centrado
CN105650908A (zh) * 2014-11-11 2016-06-08 刘庆云 一种用于光热发电的光线偏离监测装置
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US20170336105A1 (en) * 2012-12-10 2017-11-23 Nextracker Inc. Balanced solar tracker clamp
WO2019086731A1 (es) * 2017-11-03 2019-05-09 Manufacturas Braux, S.L. Cabezal regulable y sistema de seguimiento para paneles fotovoltaicos
US10476426B2 (en) 2015-12-09 2019-11-12 Craig Bradley Edward Wildman Systems and methods for collecting solar energy using a tilted linear solar collector
US10566926B2 (en) 2016-10-26 2020-02-18 Craig Bradley Edward Wildman Systems and methods for collecting solar energy using a parabolic trough solar collector
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AT10299U1 (de) 2007-09-12 2008-12-15 Nikolic Zivomir Sonnenkollektor
DE102007051383A1 (de) 2007-10-25 2009-04-30 Robert Bosch Gmbh Solarkraftwerk
DE102008008403B4 (de) 2008-02-09 2013-09-26 Robert Bosch Gmbh Solarkraftwerk mit einer Spiegelnachführung mit Lichtsensoren
DE102008008402A1 (de) 2008-02-09 2009-08-13 Robert Bosch Gmbh Solarkraftwerk mit sensorgestützter Justagemöglichkeit
DE102008050250A1 (de) * 2008-10-07 2010-04-08 Sk Energy Gmbh Solaranlagenverstellsystem und Solaranlage
DE102008052069A1 (de) 2008-10-17 2010-04-22 Robert Bosch Gmbh Solaranlage mit einer Vielzahl von Spiegeln
US9897346B2 (en) * 2010-08-03 2018-02-20 Sunpower Corporation Opposing row linear concentrator architecture
US8336539B2 (en) * 2010-08-03 2012-12-25 Sunpower Corporation Opposing row linear concentrator architecture
EP2447619A1 (de) 2010-10-26 2012-05-02 Novatec Solar GmbH Linear konzentrierender Solarkollektor und Verfahren zur Reflektornachführung in einem solchen
CN102721194B (zh) * 2012-07-17 2015-07-01 国家电网公司 大容量高聚光比复合菲涅尔线聚光反射装置
AT512944B1 (de) * 2012-10-25 2013-12-15 Hartmut Dipl Ing Schneider Stellmechanismus zum Ausrichten der Spiegel eines konzentrierenden Solar-Kollektor-Systems und Solar-Kollektor-System
CN102914065A (zh) * 2012-11-29 2013-02-06 新疆天能新能源技术有限公司 旋转定焦式太阳能集热器
DE102012221842A1 (de) 2012-11-29 2014-06-05 Schaeffler Technologies Gmbh & Co. Kg Lagereinheit für eine Nachführwelle eines Solarthermiekraftwerks
CN103997286A (zh) * 2014-05-09 2014-08-20 桂林凯创光伏科技有限公司 基于多片条形平面镜反射并具自动跟踪太阳功能的聚光光伏系统
CN104764221B (zh) * 2015-03-04 2016-08-24 中国科学院工程热物理研究所 一种光伏驱动线性菲涅尔式太阳能集热器
CN106799578B (zh) * 2017-03-06 2021-04-30 中海阳能源集团股份有限公司 一种定日镜镜面微弧调节工装及调节方法
DE102021134558B3 (de) 2021-12-23 2022-10-20 FH Aachen, Körperschaft des öffentlichen Rechts Vorrichtung und Verfahren zur solarthermischen Behandlung von Pflanzensamen

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DE112006002768A5 (de) 2008-09-04
TNSN08075A1 (en) 2009-07-14
AP2008004408A0 (en) 2008-04-30
EP1754942B1 (de) 2011-05-04
ZA200802568B (en) 2008-11-26
BRPI0614934A2 (pt) 2011-04-26
DE502006009427D1 (de) 2011-06-16
ATE508336T1 (de) 2011-05-15

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