WO2003098125A1 - Reflecteur solaire et ensemble comportant un tel reflecteur - Google Patents

Reflecteur solaire et ensemble comportant un tel reflecteur Download PDF

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Publication number
WO2003098125A1
WO2003098125A1 PCT/AU2003/000601 AU0300601W WO03098125A1 WO 2003098125 A1 WO2003098125 A1 WO 2003098125A1 AU 0300601 W AU0300601 W AU 0300601W WO 03098125 A1 WO03098125 A1 WO 03098125A1
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WO
WIPO (PCT)
Prior art keywords
solar
solar energy
collection system
reflector panels
energy collection
Prior art date
Application number
PCT/AU2003/000601
Other languages
English (en)
Inventor
David C Edwards
Original Assignee
Jarrah Computers Pty Ltd
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 Jarrah Computers Pty Ltd filed Critical Jarrah Computers Pty Ltd
Priority to AU2003229359A priority Critical patent/AU2003229359A1/en
Publication of WO2003098125A1 publication Critical patent/WO2003098125A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
    • 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
    • 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
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F24S50/40—Arrangements for controlling solar heat collectors responsive to temperature
    • 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
    • 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
    • Y02E10/47—Mountings or tracking
    • 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
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/52—PV systems with concentrators

Definitions

  • This invention relates to the field of solar energy, and in particular to concentration of solar energy
  • This invention seeks to provide a reliable and effective way to increase the efficiency of solar energy collection at minimal cost. This invention also seeks to provide solar energy collection for multiple uses, not limited to photovoltaic applications.
  • the word "comprise” or variations such as “comprises” or “comprising”, will be understood to imply the inclusion of a stated integer or group of integers but not the exclusion of any other integer or group of integers.
  • a solar energy collection system having at least one solar collector to collect solar energy, each said solar collector having two reflector panels each connected by a hinging mechanism for rotation about an axis extending proximal and along opposite longitudinal edges of said solar collector; said reflector panels being connected to an actuating mechanism controlled by a control unit to move said reflector panels to track the sun; wherein said control unit also controls said actuating mechanism to move said reflector panels while tracking the sun, between a fully open position (a heliostatic position) in which maximum solar energy is directed by reflection from said reflector panels to said solar collector, and a closed position in which minimum solar energy reaches said solar collector, in response to a measured or calculated parameter of energy derived from said solar collector.
  • the solar collector unit is intended to be located with the axis running north-south, although in higher latitudes, the axis could be located east-west.
  • the reflector panels have a reflective surface which may be selected from a pale coloured surface such as white, a polished metal surface, or a mirror surface.
  • the reflector panels are substantially planar.
  • the solar collector may comprise an array of photovoltaic cells, a solar heater for water, skylights on a building, or racks for produce (eg fruit) drying.
  • measured parameter of energy referred to above could be stored energy in the form of water temperature in a body of water heated by the solar collector, or voltage of storage batteries charged by the photovoltaic cells in the solar collector, the battery voltage being indicative of the charge state of the batteries.
  • the measured parameter could be temperature or light.
  • the measured parameter of energy could comprise temperature and perhaps also relative humidity.
  • Said control unit may, in one arrangement comprise a microprocessor having a program including an algorithm to calculate the optimum position for said reflector panel for a given date and time, and latitude (and longitude where time is GMT/CUT and uncorrected for longitude).
  • said control unit may include a sensor to track the position of the sun, said control unit being responsive to said sensor to control said actuating mechanism.
  • the solar collector prescribes a horizontal plane or alternatively a flat plane that may be placed in an incline on an inclined roof.
  • the plane of the solar collector is normal to the equinoxial declination of the sun.
  • said hinging mechanism comprises a rotatable shaft to which said reflector panel is fixed.
  • said actuating mechanism is connected to a plurality of solar collectors arranged longitudinally side by side, and connected for synchronised movement of said reflector panels.
  • said actuating mechanism includes a rotatable input shaft extending normal to said rotatable shafts of said solar collectors, connected with said rotatable shafts by transmission gears for synchronised movement of said reflector panels.
  • the width of the reflectors lies from 1.2x to 1.75x the width of the solar collector.
  • control unit controls said actuating mechanism to move said reflector panels while tracking the sun, to one of said heliostatic position, said closed position, and a parallel position in which said reflector panels are disposed substantially parallel to each other, in response to said parameter.
  • Figure 1 is a conceptual diagrammatic outline looking along the longitudinal axis of a solar collector showing its reflector panels in a heliostatic position to collect solar energy shortly after sun-rise;
  • Figure 2 is a conceptual diagrammatic outline looking along the longitudinal axis of the solar collector of figure 1 , showing its reflector panels in the heliostatic position to collect solar energy in mid-morning;
  • Figure 3 is a conceptual diagrammatic outline looking along the longitudinal axis of the solar collector showing its reflector panels in a parallel position to collect solar energy in late-morning;
  • Figure 4 is a conceptual diagrammatic outline looking along the longitudinal axis of the solar collector showing its reflector panels in a closed position to minimise collection of solar energy shortly after mid-day;
  • Figure 5 is a conceptual diagrammatic outline looking along the longitudinal axis of the solar collector showing its reflector panels in the parallel position to collect solar energy in early-afternoon;
  • Figure 6 is a conceptual diagrammatic outline looking along the longitudinal axis of the solar collector showing its reflector panels in the heliostatic position to collect solar energy in late afternoon;
  • Figure 7 is a plan view from above of a row of solar collector units in an array, according to the first embodiment
  • Figure 8 is a side view looking along the longitudinal axes of the solar collector units of figure 7;
  • Figure 9 is a plan view from above of a row of solar collector units in an array, according to the second embodiment.
  • Figure 10 is a plan view from, above of an array of solar collector units, according to the third embodiment. Best Mode(s) for Carrying Out the Invention
  • the embodiments of the invention are an array of solar collectors 11 for a solar hot water heater, a row of the solar collectors 11 being shown in figures 7 to 9, and an array of solar collectors 11 being shown in figure 10.
  • Each solar collector 11 has two reflector panels 13, 15 pivotally mounted along longitudinal axes located one along each longitudinal edge of a target in the form of a solar water heater collector 17.
  • the solar water heater collector 17 has an arrangement of pipes thermally connected with a heat-sink material, so that solar energy incident on the pipes and heat-sink material is transferred to water contained in the pipes, and so causing the water to be heated.
  • the reflector panels 13, 15 are planar, and are each formed of metallised plastic foil (sold under the trade mark SILVERLUX by 3M) secured to a frame, the frame being rigidly mounted to a hinging mechanism in the form of a rotatable shaft 20, 21.
  • the reflective side of the reflector panels 15 is shown, indicated by oblique lines; while the non reflective side of reflector panels 13 is shown, indicated by plus "+" signs.
  • Each rotatable shaft 20, 21 is connected via a gearbox 22, 23 to a respective rotatable input shaft in the form of a worm drive 24, 25; each worm drive 24, 25 being driven by respective stepper motors 26, 27.
  • the worm drives 24, 25 extend "across" the rotatable shafts 20, 21 , so as to drive the respective rotatable shafts 20, 21 in synchronised manner, through the gearboxes 22, 23.
  • the stepper motor 26, worm drive 24 and connected gearboxes 22, and rotatable shafts 20 form an actuating mechanism for the reflector panels 13; while the stepper motor 27, worm drive 25 and connected gearboxes 23, and rotatable shafts 21 form an actuating mechanism for the reflector panels 15.
  • the stepper motors 26 and 27 are controlled in synchronised manner by control means in the form of a microprocessor 29 which includes in its program, an algorithm which controls the stepper motors 26 and 27 to move the reflector panels 13 and 15 in a manner, based on time of the day and date, and latitude and longitude (hence adjusting for differing sunrise and sunset times), so that the reflector panels 13 and 15 track the sun, and can reflect sunlight optimally onto the solar water heater collector 17.
  • the microprocessor 29 is interfaced to a sensor 30 which measures a parameter commensurate with energy collected by the solar collector 11.
  • the sensor is a temperature sensor which measures the temperature of stored water that has been heated by being passed through the pipes in the solar water heater collector 17.
  • the microprocessor 29 can control the stepper motors 26 and 27 to move the reflector panels 13 and 15, in addition to tracking the sun, between the positions of heliostatic, parallel, and closed.
  • the worm drives 24, 25 are mounted on bearings 31 , spaced therealong, to ensure free rotation of the worm drives 24, 25.
  • the rotatable shafts 20, 21 are mounted on bearings 33, to ensure free rotation.
  • the row can be extended to further solar collectors, up to the maximum permitted load of the stepper motors 26, 27.
  • the rotatable shafts 20, 21 may be extended to further rows of solar collectors, also providing that the maximum permitted load of the stepper motors 26, 27 is not exceeded.
  • the solar collector 11 has its longitudinal axis running in a north-south direction.
  • the solar collector 11 has a western reflector panel 13 located along the western longitudinal edge of the solar water heater collector 17, and an eastern reflector panel 15 located along the eastern longitudinal edge of the solar water heater collector 17.
  • the longitudinal axis of the solar collector 11 runs north-south, so the reflector panel 13 is pivotally attached near the western edge of the solar water heater collector 17.
  • Figure 1 shows the position of the reflector panels 13 and 15 in a heliostatic position, as positioned by the control means and the actuating mechanism in early-moming, shortly after sun-rise, so that sunlight incident on the reflector panel 13 is reflected to the solar water heater collector 17. At this time the reflector panel 15 also reflects a small amount of sunlight to the solar water heater collector 17. At this time, due to the heliostatic position, the energy collected by the solar water heater collector 17 is maximised.
  • Figure 2 shows the position of the reflector panels 13 and 15 in a heliostatic position as positioned by the control means and the actuating mechanism in mid- morning. Again, due to the heliostatic position, the energy collected by the solar water heater collector 17 is maximised.
  • the tracking of the sun is achieved by the microprocessor calculating the desired reflector panel positions for the heliostatic position, based on parameters comprising time, date, latitude, longitude, and the slope and azimuth of the plane (ie roof etc) on which the solar water heater collectors 17 are installed.
  • the reflector panels 13 and 15 continue to be positioned in the heliostatic position as positioned by the control means and the actuating mechanism, until the microprocessor 29 determines from the sensor 30 that the temperature of the heated water has exceeded a first predetermined threshold, which for the purposes of this embodiment can be 75°C, at which point in time the microprocessor 29 controls the position of the reflector panels 13 and 15 to be moved to the parallel position as shown in figure 3, as may be expected to occur in late morning. In the parallel position, the microprocessor continues to control the position of the reflector panels 13 and 15 so that they continue to track the sun.
  • a first predetermined threshold which for the purposes of this embodiment can be 75°C
  • the microprocessor 29 determines from the sensor 30 that the temperature of the heated water has exceeded a second predetermined threshold, which for the purposes of this embodiment can be 85°C, the microprocessor 29 controls the position of the reflector panels 13 and 15 to be moved to the closed position as shown in figure 4, as may be expected to occur shortly after mid-day. In the closed position, the microprocessor continues to control the position of the reflector panels 13 and 15, so that they continue to track the sun.
  • a second predetermined threshold which for the purposes of this embodiment can be 85°C
  • the microprocessor 29 determines from the sensor 30 that the temperature of the heated water has fallen to a third predetermined threshold, which for the purposes of this embodiment can be 80°C, as might be expected in early afternoon, the microprocessor 29 controls the position of the reflector panels 13 and 15 to be moved to the parallel position as shown in figure 5. The microprocessor 29 continues to control the position of the reflector panels 13 and 15, so that they continue to track the sun, while in the parallel position.
  • a third predetermined threshold which for the purposes of this embodiment can be 80°C, as might be expected in early afternoon
  • the microprocessor 29 controls the position of the reflector panels 13 and 15 to be moved to the parallel position as shown in figure 5.
  • the microprocessor 29 continues to control the position of the reflector panels 13 and 15, so that they continue to track the sun, while in the parallel position.
  • the microprocessor 29 determines from the sensor 30 that the temperature of the heated water has fallen to a fourth predetermined threshold, which for the purposes of this embodiment can be 70°C, as might be expected in mid to late afternoon, the microprocessor 29 controls the position of the reflector panels 13 and 15 to be moved to the heliostatic position as shown in figure 6. The microprocessor 29 continues to control the position of the reflector panels 13 and 15, so that they continue to track the sun, while in the heliostatic position.
  • a fourth predetermined threshold which for the purposes of this embodiment can be 70°C, as might be expected in mid to late afternoon
  • the reflector panels 13 and 15 can be moved to a closed position as would be expected at mid-day, pending time for sun-rise, where the cycle begins afresh. This arrangement can assist to insulate solar hot water collectors 17 from heat loss.
  • the mid-day closed position can also be adopted at times of high wind or hail, where the solar collectors 11 or solar water heater collector 17 components are otherwise unprotected.
  • the first and second predetermined temperature thresholds may be delayed or not be reached, in which case the reflector panels 13 and 15 will continue to track the sun in heliostatic position or parallel position respectively.
  • the third and fourth temperature thresholds could be reached early due to an increase in demand for hot water, or due to the onset of cloudy conditions.
  • the microprocessor 29 continues to control the position of the reflector panels 13 and 15, so that they continue to track the sun, whether in the heliostatic position, the closed position, or the parallel position, the amount of adjustment and hence energy and time required to move the reflector panels 13 and 15, between the heliostatic position and the parallel position, and between the parallel position and the closed position, is minimised.
  • the microprocessor 29 comprises a CPU, a real-time-clock (RTC), memory (both ROM & RAM), motor drive circuits to control the stepper motors 26 and 27, and input which will be used to control the control algorithm, such as a sensor or a setting potentiometer etc.
  • the CPU is has its control program located in ROM.
  • the RTC is a dedicated integrated-circuit (IC) which has its own time-base input using a 32kHz crystal to keep time and date.
  • the registers inside the RTC IC which hold this real-time information can be read by the CPU.
  • the accuracy of the RTC is critical to the accuracy of the overall device as the clock information forms the basis of the computation of the sun's position.
  • the Motor Drive circuits transform four output lines from the CPU into a form that can drive the motors 26 and 27.
  • Logic circuits are used to generate the waveforms required by the stepper motors and the current drive level is increased to drive the motor circuits.
  • the position of the sun is calculated from the time and date, and other parameters programmed into the computer, namely, the latitude, the longitude, the time-zone, and the slope and azimuth of the plane on which the system is mounted.
  • all parameters set by the day of year are calculated: the Declination of the sun and the Equation of Time offset (real time, time zone and longitude).
  • the position of the sun relative to a horizontal plane is calculated, and, if the sun is up (determined from the calculation), the position of the sun relative to the plane on which the array of solar collectors 11 is mounted is calculated.
  • the projection of the suns position onto the plane perpendicular to the longitudinal axis and the plane of the target area is calculated (this is the plane of the page on which figures 1 to 6 are illustrated). This is referred to as the "sun angle", and is measured with respect to the eastern horizon. Thus if the plane on which the array of solar collectors 11 is mounted is horizontal and the longitudinal axis runs north-south, then the sun angle at sunrise is 0°.
  • the required mirror angles are calculated as follows: For the East mirror, the Heliostat angles are calculated from the identity:
  • EastAperture is (Sunangle - EastMirrorAngle)
  • Eastlncident is (EastMirrorAngle - EastAperture) and ML is mirror width as a ratio of the collector 17 width
  • the West mirror for a given sun angle is calculated from:
  • EastAperture is (Sunangle - EastMirrorAngle)
  • the second embodiment shown in figure 9 differs from the first embodiment in that the microprocessor 29 also controls additional stepper motors 26a and 27a, which connect to additional worm drives 24a and 25a, to connect to rotatable shafts 20 and 21 via additional gearboxes 22a and 23a, respectively, at the other end of the solar collectors 11 from the existing actuating mechanism formed by stepper motors 26, 27, worm drive 24, 25, and connected gearboxes 22, 23.
  • the stepper motors 26 and 26a are operated in unison by the microprocessor 29, and the stepper motors 27, 27a are operated in unison by the microprocessor 29.
  • stepper motors 26 and 26a, worm drives 24, 24a, and connected gearboxes 22, 22a, and rotatable shafts 20 form the actuating mechanism for the reflector panels 13 in this embodiment; while the stepper motors 27, 27a, worm drive 25, 25a and connected gearboxes 23, 23a, and rotatable shafts 21 form the actuating mechanism for the reflector panels 15 in this embodiment.
  • This arrangement allows longer solar collectors to be utilised, with the reflector panels 13, 15 driven from both ends. Such an arrangement may also be utilised in shorter solar collectors that might be subjected to a high wind load.
  • the third embodiment is similar to the second embodiment, except that additional bearings 35 are provided between adjacent solar collectors 11 and 11', along the shafts 20, 20' and 21 , 21 '. This allows a longer array of solar cells to be provided, each with shorter reflectors than those of the second embodiment. This can overcome problems that might occur with long reflectors where high wind load conditions might be expected. Further additional bearings could be provided, to build up large arrays, in both dimensions.
  • the solar collector of the embodiments lend themselves to applications other than solar water heating.
  • the target area With the target area maintained substantially horizontal, the target area can accommodate photovoltaic panels, or fruit drying trays.
  • the angle of inclination of the target area may be varied to anywhere between the normal to the angle of declination of the mid-day sun at summer or winter solstice depending upon energy collection requirements, although typically one would choose an angle of declination close to normal to the equinoxial declination of the mid-day sun.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)

Abstract

L'invention concerne un système de capteurs solaires comportant un ou plusieurs capteurs solaires (11, 17) conçus pour recueillir l'énergie solaire. Ces capteurs solaires (17) possèdent deux panneaux réflecteurs (13, 15) montés sur des articulations de manière à pouvoir tourner autour d'axes s'étendant le long des bords longitudinaux opposés du capteur solaire (17). Les panneaux réflecteurs (13, 15) sont connectés à un mécanisme d'actionnement (20, 22, 24, 26, et 21, 23, 25, 27), commandé par une unité de commande (29) permettant de déplacer les panneaux réflecteurs (13, 15) aux fins de la poursuite du soleil. L'unité de commande (29) commande également le mécanisme d'actionnement (20, 22, 24, 26, et 21, 23, 25, 27), afin de déplacer les panneaux réflecteurs (13, 15) pendant la poursuite du soleil, entre une position complètement ouverte (une position héliostatique) dans laquelle le maximum d'énergie solaire est dirigé par réflexion depuis les panneaux réflecteurs (13, 15) vers le capteur solaire (17), et une position fermée dans laquelle le minimum d'énergie solaire atteint le capteur solaire (17), en réponse à un paramètre mesuré (capteur 30) ou calculé d'énergie issue du capteur solaire (17).
PCT/AU2003/000601 2002-05-21 2003-05-20 Reflecteur solaire et ensemble comportant un tel reflecteur WO2003098125A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003229359A AU2003229359A1 (en) 2002-05-21 2003-05-20 Solar reflector and assembly thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPS2486A AUPS248602A0 (en) 2002-05-21 2002-05-21 Solar reflector assembly and control system therefor
AUPS2486 2002-05-21

Publications (1)

Publication Number Publication Date
WO2003098125A1 true WO2003098125A1 (fr) 2003-11-27

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Cited By (9)

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WO2006005303A1 (fr) * 2004-07-08 2006-01-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dispositif pour concentrer la lumiere. notamment la lumiere du soleil
GB2439151A (en) * 2006-06-16 2007-12-19 Chetwood Holdings Ltd A kinetic structure for a solar energy generating device
ITCS20080017A1 (it) * 2008-09-19 2008-12-19 Innova Technology Solutions S R L Concentratore solare ad ottica distribuita
WO2010015362A2 (fr) * 2008-08-03 2010-02-11 Nikolaus Joerg Centrale solaire
WO2010032095A2 (fr) * 2008-09-18 2010-03-25 Kloben S.A.S. Di Turco Adelino Ec. Dispositif capteur solaire sans poursuite
DE102008055871A1 (de) * 2008-10-31 2010-05-06 Kleinsorge, Alexander Erhöhung des Wirkungsgrades von Solarmodulen
ITUD20090015A1 (it) * 2009-01-27 2010-07-28 Global Procurement S R L Impianto fotovoltaico ad inseguimento, e relativo procedimento di movimentazione
US9933761B2 (en) 2012-11-30 2018-04-03 Lutron Electronics Co., Inc. Method of controlling a motorized window treatment
US10017985B2 (en) 2013-08-14 2018-07-10 Lutron Electronics Co., Inc. Window treatment control using bright override

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DE4338736A1 (de) * 1993-11-12 1995-05-24 Arnold Prof Dip Wietrzichowski Solarenergieherd und/oder -heizung
JPH1151496A (ja) * 1997-08-05 1999-02-26 Shirai Shoji:Kk 太陽光集熱器

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US4232497A (en) * 1979-02-21 1980-11-11 Albin Meschnig Device for securing platelike elements to a carrying structure at a distance therefrom
DE4338736A1 (de) * 1993-11-12 1995-05-24 Arnold Prof Dip Wietrzichowski Solarenergieherd und/oder -heizung
JPH1151496A (ja) * 1997-08-05 1999-02-26 Shirai Shoji:Kk 太陽光集熱器

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DATABASE WPI Derwent World Patents Index; Class Q74, AN 1999-218017/19 *

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006005303A1 (fr) * 2004-07-08 2006-01-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dispositif pour concentrer la lumiere. notamment la lumiere du soleil
GB2439151B (en) * 2006-06-16 2011-11-09 Chetwood Holdings Ltd Kinetic structure
GB2439151A (en) * 2006-06-16 2007-12-19 Chetwood Holdings Ltd A kinetic structure for a solar energy generating device
WO2010015362A2 (fr) * 2008-08-03 2010-02-11 Nikolaus Joerg Centrale solaire
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