US20130239948A1 - Linearly concentrating solar collector and method for reflector tracking in such a solar collector - Google Patents

Linearly concentrating solar collector and method for reflector tracking in such a solar collector Download PDF

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Publication number
US20130239948A1
US20130239948A1 US13/824,618 US201113824618A US2013239948A1 US 20130239948 A1 US20130239948 A1 US 20130239948A1 US 201113824618 A US201113824618 A US 201113824618A US 2013239948 A1 US2013239948 A1 US 2013239948A1
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US
United States
Prior art keywords
reflectors
receiver tube
sensors
receiver
solar collector
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
US13/824,618
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English (en)
Inventor
Martin Selig
Max Mertins
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.)
Novatec Solar GmbH
Original Assignee
Novatec Solar GmbH
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 Novatec Solar GmbH filed Critical Novatec Solar GmbH
Assigned to NOVATEC SOLAR GMBH reassignment NOVATEC SOLAR GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MERTINS, MAX, SELIG, MARTIN
Publication of US20130239948A1 publication Critical patent/US20130239948A1/en
Abandoned legal-status Critical Current

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Classifications

    • F24J2/38—
    • 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
    • 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
    • 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
    • F24S50/80—Arrangements for controlling solar heat collectors for controlling collection or absorption of solar radiation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/785—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system
    • G01S3/786—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system the desired condition being maintained automatically
    • G01S3/7861—Solar tracking systems
    • 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
    • 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
    • Y02E10/47—Mountings or tracking

Definitions

  • the present invention relates to a linearly concentrating solar collector comprising a receiver tube mounted in an elevated manner for the absorption of thermal energy and a plurality of reflectors, arranged on both sides of the receiver tube and pivoted around their longitudinal axis, for the reflection of incident sunlight onto the receiver tube, and a method for reflector tracking in such a linearly concentrating solar collector.
  • the object of this application is a Fresnel solar collector arrangement that is operated as a solar thermal power plant.
  • such an arrangement comprises initially a receiver mounted in an elevated manner that is embodied in the form of a receiver tube surrounded by a receiver cover.
  • the receiver tube contains a heat-conducting medium that can remove thermal energy hitting the receiver tube, which energy can then be processed for use, for instance converted into electrical energy.
  • the necessary thermal energy comes from the solar irradiation that falls on the reflectors arranged around the receiver tube and is reflected and preferably also focused by them onto the receiver tube.
  • Great precision of the reflection and focusing is very important in this connection, so that the individual reflectors actually reflect the reflected light back onto the receiver tube and the least possible loss occurs.
  • the reflector arrangement must therefore track the current position of the sun in order to ensure that the reflected light continues to hit the receiver tube despite the changing position of the sun.
  • the reflectors are pivoted in the direction of their longitudinal expanse so that the reflection can occur at a suitable angle, in each instance, in order to hit the receiver tube.
  • receiver and reflectors are chosen such that both the individual reflectors and the receiver are erected in parallel to one another.
  • the reflectors are arranged in parallel rows on both sides of the receiver, whereby the above state of the art provides for coupling of the individual reflectors relative to one another, because although each individual reflector must take up its own position, over time the change of angle is the same for all reflectors.
  • the reflectors are therefore connected to one another by a common connecting rod that, if displaced, brings about a change of angle by way of a lever mechanism.
  • the degree by which the angle is changed is determined by a control system based on sun position algorithms.
  • Such solar thermal power plants are also usually erected in regions in which high solar irradiation is to be expected. Usually such regions make relatively high demands on the material, which is therefore subject to both elongation and compression, and this can in turn lead to inaccuracies in tracking, in each instance. Likewise, bending can occur due both to wind pressure and to different rates of thermal expansion, so that all in all, optimal tracking is not ensured in the best possible way by following calculated sun positions.
  • the present invention is based on improving the tracking of the reflectors in a linearly concentrating solar collector, in particular also increasing the thermal energy yield obtained.
  • a linearly concentrating solar collector provides that the receiver tube mounted in an elevated manner, through which a heat-conducting medium flows for the absorption of thermal energy, has at least one sensor arrangement, which is fitted with sensors for detecting the intensities of radiation, on both longitudinal sides.
  • the sensors are arranged in such a way that from the aspect of a reflector, the receiver tube is respectively arranged between both sensors.
  • the at least two sensor arrangements may each have a first sensor, which is oriented in the direction of reflectors on a first side of the receiver tube, while additionally or alternatively, second sensors may also be present, which are oriented toward the reflectors on a second side of the receiver tube. The orientation of the first and/or second sensors is thus always effected solely onto a group of reflectors coupled to one another in a transverse direction.
  • one and the same reflector is in a position from which, depending on its setting, it can direct sunlight onto sensors either of both sensor arrangements or of no sensor arrangement. At the same time, it cannot reach any second sensor with the light reflected by it. It is then verified whether a predetermined relationship of the intensity of radiation, for instance the same intensity of radiation, can be determined in both sensors oriented in the same direction. In this example, it must be assumed that both sensors on average receive light equally strongly, whereby the maximum intensity of radiation would then have to occur in the middle between the two sensors.
  • the receiver tube is not located centrally between the first and/or second sensors as viewed from the reflectors, a certain relationship of the respectively measured intensities of radiation that corresponds to the desired location of the maximum is aimed at. If the intended orientation is present, the receiver tube is situated at this location, so that an optimal yield is achieved if this configuration exists. However, if one of the two sensors oriented in the same direction were to receive less or more than the expected relationship specifies, tracking is required to the effect that the reflectors are adjusted until the intensity of radiation has fallen at the sensor with the excessively high intensity of radiation and has risen at the sensor with the excessively low intensity of radiation, so that the relationship of the measured intensity of radiation is achieved again.
  • the reflectors on the two sides of the receiver tube can be coupled with one another, each side by itself, at least in rows, so that all reflectors of one side are coupled with one another and all reflectors of the other side are coupled with one another. This further enhances the accuracy of tracking.
  • At least one first sensor and at least one second sensor can be arranged in a common housing, whereby the two sensors point in two opposite directions out of the housing.
  • the sensors can be accommodated not only in front of the housing but also in the housing, or can even penetrate the housing wall.
  • the two sensors thus reach through openings into opposite surfaces of the housing, whereby these opposite surfaces preferably form an acute angle. This is due to the position of the reflectors relative to the sensors and permits a large angle of absorption for the rays of light reflected toward the receiver tube by the reflectors.
  • the opposite dispositions of the sensors in the sensor arrangement also ensure that only the light reflected by the reflectors on one side of the receiver tube or by the reflectors on the other side of the receiver tube can be received, so that there is no diffusion to cause inaccuracies in the measurement.
  • the sensors are essentially oriented transverse to the receiver tube.
  • shields to repel dispersed radiation may be arranged around the receptor openings of the sensors, which radiation can, for instance, hit the sensors directly from the sun. Again, this improves the accuracy of measurement relative to the radiation received only by the reflectors.
  • the receiver tube is usually surrounded by a receiver cover that, on the one hand, guarantees thermal insulation of the receiver tube and, on the other hand, in the area above the receiver tube, has a secondary mirror, which reflects radiation dispersed past the receiver tube back onto the receiver tube.
  • a receiver cover In the area of this receiver cover, there is a bottom edge to which the sensor arrangements on both sides of the receiver tube can be secured. This is a favorable location given that greater incoming radiation than above the bottom edge of the cover is not possible in any case, due to the receiver cover.
  • the disposition of one sensor arrangement on each side of the receiver is sufficient for the measurement itself, but additional sensor arrangements disposed in pairs on the receiver cover may improve the measurement by enabling the results to be averaged.
  • Tracking of the reflectors is preferably effected mechanically in that a connecting rod connects several of the reflectors in such a way that the setting angle of the reflectors is adjusted by a displacement of the connecting rod transversely to the receiver tube.
  • the adjustment is effected to the same extent for all reflectors, whereby a different absolute oblique position allows each individual reflector to be tracked exactly and separately.
  • the displacement of the connecting rod is effected against a fixed bearing and by means of a servomotor and, in the case that only first or only second sensors are present, brings about tracking of detectors on both sides, and, if first and second sensors are present, tracking of reflectors on one side only, in each instance, whereby the reflectors on the respective other side are coupled by their own connecting rods.
  • the reflectors can each have at least one swiveling lever whose fixed end is non-rotatably connected to the reflector and whose free end can be coupled to the connecting rod.
  • the fixed bearing against which the connecting rod is displaced can be a bearing receiver mast or be connected to the latter.
  • An adjusting element is mounted between the fixed bearing and the connecting rod, which element can be telescoped, for instance by means of the servomotor, and thereby can bring about displacement of the connecting rod.
  • adjusting elements such as a linear motor or the like.
  • these additionally have clinometers so that the angle of inclination of the reflectors can thereby be determined again and can be compared with the corresponding specifications.
  • a rough preliminary orientation conforming to the state of the art described initially can additionally be performed.
  • the sensors are advantageously photovoltaic cells that convert the incident radiation directly into an electric current. Such sensors give a current signal of approx. 0 to 30 mA, which is fed into an AD converter, converted by the latter and relayed to a data processing system by way of a bus, for example a field bus.
  • a bus for example a field bus.
  • other sensors may also be used, such as temperature sensors, which measure the generation of heat.
  • a waveguide arrangement that relays the light received to a suitable detector.
  • FIG. 1 a linearly concentrating solar collector in a perspective view obliquely from above
  • FIG. 2 the solar collector according to FIG. 1 in a lateral top view
  • FIG. 3 the receiver of the collector according to FIG. 1 in cross-section
  • FIG. 4 the receiver according to FIG. 3 with a variant of the sensor arrangements in cross-section.
  • FIG. 1 shows a concentrating collector of a solar thermal power plant essentially comprising a receiver 20 mounted in an elevated manner and reflectors 30 oriented toward it.
  • the reflectors 30 are mounted on a support frame 40 and can be pivoted on this frame in such a way that each reflector 30 can direct the incident sunlight that impacts it directly to the receiver 20 mounted in an elevated manner.
  • the receiver 20 is supported on receiver masts 41 , which can be braced against the carrier frame 40 by means of bracing cables 42 .
  • FIG. 2 shows the collector described above in a lateral view, which shows the ability of the reflectors 30 to pan.
  • the reflectors 30 each have a swiveling lever 31 on their downward-facing side, by way of which lever they are connected to the carrier frame 40 in articulated manner.
  • the free end of the swiveling lever 31 is connected, on the underside of the carrier frame 40 , to a connecting rod 32 , which thereby mechanically couples all reflectors 30 located on a side 43 , 44 of the receiver 20 .
  • the connecting rod 32 is displaced by means of a servomotor 35 , which operates a telescoping adjusting element 33 .
  • This element is connected, on the one hand, to the connecting rod 32 , and, on the other hand, to a fixed bearing 34 , whereby the fixed bearing 34 is located on a receiver mast 41 .
  • the arrangement shown is repeated multiple times in the longitudinal direction of the collector of the solar thermal power plant, as shown in FIG. 1 .
  • the reflectors 30 of the first side 43 of the receiver 20 are coupled to one another, in each instance, and the reflectors 30 of the second side 44 of the receiver are likewise coupled to one another.
  • FIG. 3 shows the receiver 20 in a cross-sectional view, whereby the receiver 20 essentially comprises a receiver tube 21 in which the medium to be heated is guided, and a receiver cover 22 , which surrounds the receiver tube 21 . Downward, the receiver cover 22 is sealed off by a glass plate 24 , so that for one thing, less heat is lost around the receiver tube 21 , and for another, contamination of the receiver tube 21 and the secondary reflector 23 arranged on the inside of the receiver cover 22 is likewise avoided.
  • the secondary reflector in question reflects the sunlight that is directed past the receiver tube 21 back onto the receiver tube 21 , and thereby enhances the effectiveness of the tube once again.
  • the layers provided between the secondary reflector 23 and the outer shell of the receiver cover 22 accommodate not only switching elements, where required, but also insulating material, in order to improve the generation of heat around the receiver tube 21 .
  • Sensor arrangements 10 are disposed on the bottom edges of the receiver cover 22 , on both sides, whereby each of these sensor arrangements 10 has a first sensor 11 and a second sensor 12 , in each instance.
  • the first sensor 11 of the two sensor arrangements points in the direction of the reflectors 30 of the first side 43 of the linearly concentrating solar collector, and is protected, by means of a shield 13 , against not only direct solar irradiation but also the incidence of reflected light of the reflectors 30 of the second side 44 .
  • the light received by the first sensors 11 is checked with regard to its intensity of radiation, and a difference between the intensities of radiation of the two first sensors 11 is formed.
  • the difference between the two first sensors 11 is equal to zero, it is assumed that a maximum of intensity of radiation lies exactly between the two sensors, in other words directly on the receiver tube 21 .
  • the reflectors of the linearly concentrating solar collector are tracking exactly and no intervention is required.
  • tracking of the reflectors 30 on the first side 43 of the receiver 20 is performed, to the effect that the intensity of radiation is decreased at the first sensor 11 with the greater intensity of radiation, and increased at the first sensor 11 with the lesser intensity of radiation. Tracking is performed until the values are balanced again and the difference approaches zero again.
  • tracking is effected by the servomotor 35 , which brings about a change of angle at the reflectors 30 by way of displacement of the connecting rod 32 .
  • This is achieved using a traditional proportional regulator, which has the difference of the intensities of radiation of the first sensors 11 as its input signal, and the actuating signal at the servomotor 35 as its output signal.
  • FIG. 4 shows an alternative embodiment of the sensor arrangements 10 , whereby these are fully integrated into a housing, which has openings for the sensors 11 , 12 on the surfaces 14 , which are angled away from one another.
  • a shield 13 is provided, which is intended to prevent direct solar irradiation on the sensors.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Energy (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Photovoltaic Devices (AREA)
  • Aerials With Secondary Devices (AREA)
  • Optical Elements Other Than Lenses (AREA)
US13/824,618 2010-10-26 2011-10-26 Linearly concentrating solar collector and method for reflector tracking in such a solar collector Abandoned US20130239948A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10188790A EP2447619A1 (fr) 2010-10-26 2010-10-26 Collecteur solaire à concentration linéaire et procédé de suivi de réflecteur dans celui-ci
EP10188790.9 2010-10-26
PCT/EP2011/005396 WO2012055548A2 (fr) 2010-10-26 2011-10-26 Collecteur d'énergie solaire à concentration linéaire et procédé d'orientation des réflecteurs d'un tel collecteur

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US20130239948A1 true US20130239948A1 (en) 2013-09-19

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US13/824,618 Abandoned US20130239948A1 (en) 2010-10-26 2011-10-26 Linearly concentrating solar collector and method for reflector tracking in such a solar collector

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US (1) US20130239948A1 (fr)
EP (1) EP2447619A1 (fr)
AU (1) AU2011322915B2 (fr)
CL (1) CL2013001140A1 (fr)
MA (1) MA34614B1 (fr)
MX (1) MX2013004641A (fr)
WO (1) WO2012055548A2 (fr)
ZA (1) ZA201302041B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170170780A1 (en) * 2015-12-09 2017-06-15 Wildman Energy Consulting, LLC 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
US20210389025A1 (en) * 2020-06-15 2021-12-16 Planet A Energy, Inc. Detector and tracker

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2996908B1 (fr) * 2012-10-11 2017-09-15 Constructions Ind De La Mediterranee - Cnim Installation solaire a concentration lineaire et reflecteur secondaire pouvant etre utilise dans une telle installation
FR3017195B1 (fr) * 2014-02-04 2016-02-05 Ssl Investissements Reflecteur secondaire pour centrale solaire a concentration lineaire
FR3030022A1 (fr) * 2014-12-15 2016-06-17 Ssl Investissements Centrale solaire a concentration lineaire comprenant un ensemble de reflecteurs primaires

Citations (1)

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Publication number Priority date Publication date Assignee Title
US4159710A (en) * 1976-09-20 1979-07-03 U.S. Philips Corporation Solar collector comprising solar tracking means

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DE2511740A1 (de) * 1975-03-18 1976-09-30 Ulrich Ing Grad Radons Reflektorsystem zur gewinnung von sonnenenergie
DE05752475T1 (de) * 2004-06-24 2009-09-17 Heliodynamics Ltd., Caxton Sonnenenergiesammelsysteme
ATE508336T1 (de) 2005-08-20 2011-05-15 Novatec Biosol Ag Fresnel-solar-kollektor-anordnung
WO2007022756A2 (fr) * 2005-08-20 2007-03-01 Novatec Biosol Ag Dispositif capteur solaire de fresnel
DE102006058995A1 (de) * 2006-02-09 2008-06-19 Novatec Biosol Ag Fresnel-Solar-Kollektor-Anordnung
DE102007051383A1 (de) * 2007-10-25 2009-04-30 Robert Bosch Gmbh Solarkraftwerk

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
US4159710A (en) * 1976-09-20 1979-07-03 U.S. Philips Corporation Solar collector comprising solar tracking means

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170170780A1 (en) * 2015-12-09 2017-06-15 Wildman Energy Consulting, LLC Systems and methods for collecting solar energy using a tilted linear solar collector
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
US20210389025A1 (en) * 2020-06-15 2021-12-16 Planet A Energy, Inc. Detector and tracker

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Publication number Publication date
AU2011322915A1 (en) 2013-05-09
MA34614B1 (fr) 2013-10-02
EP2447619A1 (fr) 2012-05-02
WO2012055548A4 (fr) 2013-01-10
AU2011322915B2 (en) 2015-02-05
WO2012055548A8 (fr) 2013-02-28
CL2013001140A1 (es) 2013-11-22
WO2012055548A2 (fr) 2012-05-03
ZA201302041B (en) 2013-11-27
MX2013004641A (es) 2013-08-21
WO2012055548A3 (fr) 2012-11-22

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AS Assignment

Owner name: NOVATEC SOLAR GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SELIG, MARTIN;MERTINS, MAX;REEL/FRAME:030332/0239

Effective date: 20130415

STCB Information on status: application discontinuation

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