EP2786079A2 - Collecteur solaire pourvu d'un système concentrateur pivotant - Google Patents

Collecteur solaire pourvu d'un système concentrateur pivotant

Info

Publication number
EP2786079A2
EP2786079A2 EP12805912.8A EP12805912A EP2786079A2 EP 2786079 A2 EP2786079 A2 EP 2786079A2 EP 12805912 A EP12805912 A EP 12805912A EP 2786079 A2 EP2786079 A2 EP 2786079A2
Authority
EP
European Patent Office
Prior art keywords
concentrator
radiation
trough collector
concentrators
secondary concentrators
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.)
Withdrawn
Application number
EP12805912.8A
Other languages
German (de)
English (en)
Inventor
Gianluca AMBROSETTI
Jonathan CHAMBERS
Thomas Cooper
Andrea Pedretti
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.)
Airlight Energy IP SA
Original Assignee
Airlight Energy IP SA
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 Airlight Energy IP SA filed Critical Airlight Energy IP SA
Publication of EP2786079A2 publication Critical patent/EP2786079A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
    • H01L31/0525—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells including means to utilise heat energy directly associated with the PV cell, e.g. integrated Seebeck elements
    • 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
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/79—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with spaced and opposed interacting 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
    • F24S30/45—Arrangements for moving or orienting solar heat collector modules for rotary movement with two rotation axes
    • F24S30/455—Horizontal primary axis
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
    • G02B7/183—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors specially adapted for very large mirrors, e.g. for astronomy, or solar concentrators
    • 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
    • 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
    • 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

  • the present invention relates to a gutter collector according to the preamble of claim 1, a gutter collector according to claim 16 and a secondary concentrator according to claim 16.
  • Trough collectors or secondary concentrators of the type mentioned find u.a. in solar power plants application. To date, it has not been able to generate solar power in application of this technology in approximately cost-covering nature because of the not yet overcome disadvantages of photovoltaics.
  • Solar thermal power plants on the other hand, have been producing electricity on an industrial scale for some time now at prices which, compared to photovoltaics, are close to the current commercial prices for conventionally generated electricity.
  • the Dish Sterling systems as small units in the range of up to 50 kW per module (whether thermal or photovoltaic) have not generally prevailed.
  • Solar tower power plant systems have a central, raised (on the "tower") mounted absorber for hundreds to thousands of individual mirrors with mirrored to him sunlight, so that the radiation energy of the sun over the many mirrors or concentrators in the absorber concentrated and thus temperatures up to 1300 ° C, which is favorable for the efficiency of the downstream thermal machines (usually a steam or fluid turbine power plant for power generation).
  • California Solar has a capacity of several MW.
  • the PS20 plant in Spain has an output of 20 MW.
  • Solar tower power plants have (despite the advantageously achievable high temperatures) also found no greater spread to this day.
  • Parabolic trough power plants are widespread and have collectors in high numbers, which have long concentrators with small transverse dimension, and thus have not a focal point, but a focal line.
  • these line concentrators have a length of 20 m up to 150 m, but can also have a length of
  • Photovoltaic systems can be equipped with photocells, which are arranged at the location of the focal line.
  • the absorber line can additionally with a surrounding (not or little insulating) mechanical
  • an important parameter for the efficiency of a solar power plant is the temperature of the transport medium heated by the collectors, through which the heat recovered is transported away from the collector and used for conversion into, for example, electricity: higher temperature allows a higher conversion efficiency to be achieved ,
  • the realizable in the transport medium temperature in turn depends on the concentration of the reflected solar radiation through the concentrator.
  • a concentration of 50 means that in the focal zone of the concentrator an energy density per m 2 is achieved which corresponds to 50 times the energy radiated from the sun to one m 2 of the earth's surface.
  • the theoretical maximum possible concentration depends on the geometry of the Earth - Sun, i. from the opening angle of the solar disk observed from the earth. From this opening angle of 0.27 ° it follows that the theoretically maximum possible concentration factor for trough collectors is 213.
  • the illustrated arrangement of the secondary concentrators is of complicated design and does not allow to fully utilize the capacity of the primary collector for different inclination angles of the secondary concentrators since they leave gaps in a straight position between them, corresponding to unused radiation or, if arranged without gaps, already at low inclination collide with each other.
  • a solar collector with the characterizing features of claim 1 and 13, and by a secondary concentrator with the characterizing features of claim 16. Since the pivoting range of the secondary concentrators extends from a positive angle range over the vertical to the negative angle range, and the radiation reflected by the primary concentrator can be completely detected in all angular positions, the radiation reflected by the primary concentrator can be fully utilized practically at any time of the day.
  • the secondary concentrators of the length of the primary concentrator are arranged in several rows, each row of secondary concentrators is aligned with a length of its associated primary concentrator, there is also an increase in the efficiency.
  • the secondary concentrators absorb less radiation in the transverse direction, they can be formed with a lower acceptance angle in the longitudinal direction, which improves the concentration as such and thus increases the efficiency of the arrangement.
  • the arrangement of the secondary concentrators in several rows is in effect regardless of the inventive design of the secondary concentrators regarding their pivotability, but synergistic for optimal efficiency.
  • FIG. 1a schematically shows a trough collector according to the prior art, with a pressure cell
  • 1 b schematically shows a trough collector according to FIG. 1 a, which has secondary concentrators
  • FIG. 1c shows schematically in a view the changing angle of incidence of the sun
  • Fig. Ld is a diagram illustrating the changing angle of incidence
  • Fig. Le schematically shows a longitudinal section through the collector of Fig. La
  • FIG. 3a shows the detail of Figure 2a in another Verschwenklage the secondary concentrators according to an angle of incidence S of solar radiation
  • FIG. 3b shows the detail of Figure 2a in a further Verschwenklage the secondary concentrators according to an angle of incidence S of solar radiation
  • FIG. 5 is a three-dimensional view of a further preferred embodiment of the inventive primary concentrator with an associated photocell
  • FIG. 6 shows a three-dimensional view of a further preferred embodiment of the primary concentrator according to the invention with a pivoting arrangement for pivoting relative to the primary concentrator
  • FIG 7 shows a cross section through a pressure cell of a trough collector according to the invention with secondary concentrators which are each assigned to a longitudinal section of the primary concentrator.
  • FIG. 1 a shows a trough collector 1 of conventional type with a pressure cell 2, which has the shape of a cushion and is formed by an upper, flexible membrane 3 and a lower, flexible membrane 4 concealed in the figure.
  • the membrane 3 is permeable to sun rays 5, which fall in the interior of the pressure cell 2 on a concentrator membrane (concentrator 10, Figure 2a) and by this as
  • Rays 6 are reflected, towards an absorber tube 7, in which a heat-transporting medium circulates, which dissipates the heat concentrated by the collector.
  • the absorber tube 7 is held by supports 8 in the focal line region of the concentrator membrane (concentrator 10, FIG. 2a).
  • the pressure cell 2 is mounted in a frame 9, which in turn is mounted in a known manner the daily position of the sun pivotally mounted on a frame.
  • the present invention preferably finds application in a solar collector of this type designed as a trough collector, ie with a pressure cell and a concentrator membrane mounted in the pressure cell, it is in no way limited thereto but, for example, also applicable in trough collectors whose concentrators are known as non-flexible mirrors are formed. Collectors with non-flexible mirrors are used for example in the above-mentioned power plants. Likewise, photovoltaic cells can generally be provided instead of an absorber tube.
  • FIG. 1b shows a trough collector with secondary concentrators.
  • a collector 10 designed in principle like the collector 1 of FIG. 1 a, has a concentrator 11 and an absorber tube 12 mounted on supports 8. Sunbeams 5 fall on the primary concentrator 11 and are reflected by it as rays 6.
  • the concrete design of the concentrator 11 results in a radiation path for reflected radiation, which is represented by the beams 6.
  • the arrow 16 indicates the longitudinal direction
  • the arrow 17 the transverse direction.
  • the concentrator 11 is curved in the transverse direction 17 and concentrated in a first direction, namely in the transverse direction 17th
  • the radiation path of the concentrator 11 has a focal line area or a focal plane, necessarily, since, on the one hand, due to the opening angle of the sun, the radiation 5 of which does not collide, the concentration into a geometrically accurate focal line is thus not possible, and moreover because of a accurate parabolic curvature of the concentrator for a theoretically as close as possible approximated focal line with reasonable cost is not feasible.
  • plate-shaped, for concentrated radiation transparent optical elements 20 are part of a secondary concentrator and are arranged in the first radiation path of the concentrator 11, so that the radiation path passes through them. These optical elements 20 break the incident on it (reflected by the concentrator 11) radiation 6 in a second direction, namely in
  • the absorber element formed here as absorber tube 12 is located at the location of the focal point regions 21 and has a number of thermal openings 23 for the
  • a thermal opening allows the heat transfer of the concentrated radiation, but is not necessarily designed as a mechanical opening. At the location of the thermal openings 23 and photovoltaic cells can be arranged.
  • FIG. 1c schematically shows the position of the north-south oriented primary concentrator 11 with respect to the sun, traveling on its lane 30 from morning to evening.
  • the concentrator 11 is inclined to the left in the morning, ie to the east and the evening to the right, ie to the west (the corresponding pivoting of the concentrator 11 is indicated by the double arrow D shown in the figure).
  • the orbit 30 of the sun runs higher or lower over the sky so that a ray of sun 31 obliquely falls on the concentrator 11, which is aligned with the sun.
  • the angle of incidence S between the sun 's ray 31 and the normal N on the concentrator 11 is known as skew angle S.
  • FIG. ld shows a diagram in which the horizontal time of the day (morning - noon - evening) and an associated skew angle (angle S) is shown.
  • the skew angle or angle of incidence S in winter ranges between, for example, 20 ° and 50 ° (Curve A), in summer between minus 20 ° and plus 70 ° (curve B).
  • Figure le shows a longitudinal section through the concentrator 11, with a view of the eastern half. Shown is a sun ray 32, which incident on the concentrator 11 with a skew angle S of about 50 ° and is reflected as a reflected beam 32 'at the same angle to the normal N. Next, a second sun ray 33 is shown, which is incident with a skew - angle S of about minus 20 ° and is reflected as a beam 33 '.
  • the beams 32 'and 33' limit, by way of example, the pivoting range which is required for optimized secondary concentrators.
  • FIG. 2a schematically shows a longitudinal section through a trough collector 40 according to the invention, corresponding, e.g. a collector according to the figures la and lb, wherein to relieve the figure, only a section of the center of the collector 40 shown and the ends are omitted.
  • secondary concentrators 41 with a photovoltaic element are provided according to the invention, with an inlet region
  • Concentrator 11 concentrates the incident sunrays 43 in the transverse direction 17 and reaches the respective secondary concentrator 41 in the entry region 42 as reflected solar rays 43 ', which in turn concentrates the sun's rays 43' in the longitudinal direction 16, so that in its exit region 44, a focal point region is formed for the solar radiation, which is now longitudinally and once transversely concentrated.
  • each secondary concentrator 41 has a first reflective wall 45 and a second reflective wall 46 for the radiation 42 'entering it.
  • the first and the second reflective wall 45 are a first and the second reflective wall 46 for the radiation 42 'entering it.
  • Wall 45, 46 of the secondary concentrators 41 in the inlet region 42 of the radiation of different lengths such that a longer reflective wall of a Sekundärkon- center each adjacent to a shorter reflective wall of the adjacent secondary concentrator.
  • FIG. 2b shows in enlarged form a section corresponding to the dashed region 47 of FIG. 2a.
  • Concentrator fully detect reflected radiation over the entire pivoting range.
  • FIG. 3a now shows the arrangement according to the invention, namely a concentrator 11 with secondary concentrators 41 associated therewith in the event of an incidence of the sun's rays
  • FIG. 3b shows the arrangement according to the invention under a skew angle S of minus
  • FIG. 4 shows a three-dimensional view of a secondary concentrator 41 according to the invention with its first longer wall 46, the second shorter wall 45 and two side walls 55 and 56.
  • the first shorter 45 and second longer reflective walls of the secondary concentrator are formed as a compound parabolic concentrator, as such known to those skilled in the art.
  • a compound parabolic concentrator has an acceptance angle AW at which within this angle ⁇ incoming radiation at a wall 45, 46 only once reflected and then out of the
  • Outlet region 43 is delivered at the angle G ou t. More preferably, the shorter wall 45 and the longer wall each have the same values for 9 in and 6 0ut , ie the shorter wall 45 corresponds in profile to the longer wall 46 to which the corresponding section has been cut away.
  • the person skilled in the art can now design the secondary concentrator according to the invention in such a way that on the one hand the desired secondary concentration enters in the longitudinal direction and, on the other hand, the pivotability is given in the concrete necessary measure due to the difference in the length of the two longitudinally concentrating walls.
  • ⁇ , ⁇ is preferably between 5 ° and 10 °.
  • a suitable value can be selected by a person skilled in the art, which is coordinated inter alia with a photocell or thermal opening of an absorber tube arranged at the exit region 43.
  • the secondary concentrators 41 have means for further concentration of the incident radiation in the first, the transverse direction 17 ( Figure la and lc).
  • a third reflective wall 55 and a fourth reflective wall 56 are provided, which are opposite, and which are designed as a hyperbolic concentrator.
  • the invention is also to form the third wall 55 and the fourth wall 56 as a wedge concentrator. Both a hyperbolic concentrator and a wedge concentrator are known as such to the person skilled in the art who can interpret them appropriately in the specific case.
  • a concentration of 55 suns can be achieved if the width (transverse direction 17) of the inlet region 42 ( Figure 4) of the secondary concentrator 41 accordingly is selected. If the expert then places the secondary concentrator 41 at a secondary concentration of 10 in the longitudinal direction 16, the result is a total concentration of 550 suns. This can be additionally improved by a transverse concentration (see above).
  • FIG. 5 shows a further, preferred embodiment of the secondary concentrators 60 according to the invention, each of which is fixedly connected at its exit region 43 to at least one photovoltaic cell 61, which in turn is arranged in a housing 62, the housing 62 again having bearing journals 63, where it can be mounted pivotably relative to the concentrator 11.
  • the at least one photocell is fixed relative to the focal point region, generated by the secondary concentrator 60, and on the other hand, a simple suspension for the secondary concentrators 60, even in the trough collector.
  • the secondary concentrators 41, 60 are arranged in relation to the primary concentrator 11 such that the focal line area of the primary concentrator in the vertical position of the secondary concentrators
  • a secondary concentrator in particular also a secondary concentrator designed as a compound parabolic concentrator, is arranged in such a way that the focal line region or the focal plane of the primary concentrator lies at the lower edge of the reflecting walls.
  • asymmetrically trained secondary concentrator 41,60 the longer wall 46 the larger proportion of radiation to be concentrated. Accordingly, it is to be understood that the focal plane for optimum concentration must be at the location of the lower edge 48 of the longer wall 46. Surprisingly, however, it has been shown that this is not the case, and the focal plane is to be arranged higher for optimum efficiency of the trough collector.
  • the focal line area or the focal plane of the primary concentrator 11 is in the vertical position of the secondary concentrators above the height of the leading edge 48 of the longer 46 of the walls, which concentrate in the second transverse direction 17 and on the Height or below the height of the entrance region of the means for concentrating the radiation in the first direction, ie preferably a hyperbolic or wedge concentrator.
  • FIG. 6 shows, by way of example, a secondary concentrator 70, which is pivotable about a pivot axis 71 which, in the vertical position of the secondary concentrator, lies at the level of the leading edge of the shorter of the walls, which concentrate in the second direction.
  • a pivot pin 72 on which the secondary concentrator 70 can be pivotably mounted relative to the primary concentrator 11.
  • FIG. 7 shows, by way of example, a cross section through the pressure cell 80 of a trough collector 80, which is designed in accordance with WO 2010/037243.
  • a plurality of secondary concentrators 81, 82 are provided in lateral direction 17 next to one another, wherein each of the necks
  • reflected radiation is received from an associated longitudinal section 83, 84 of the primary concentrator 85.
  • the acceptance angle ⁇ in for the secondary concentration in the longitudinal direction can be reduced if the width of the detector detected by the secondary concentrator Primary concentrator is smaller.
  • the acceptance angle for the longitudinal concentration can then be kept in the following ranges: in the inlet region between 0.5 ° and 10 °, preferably between 3 ° and 10 °, particularly preferably between 5 ° and 10 °, very preferably between 4 ° and 5 °, and more preferably concentrated radiation emerges at an angle of at most 70 °.
  • These values depend on the quality of the primary concentrator and can be reduced to 4 ° to 5 ° with the best efficiency of the secondary concentrator in a primary concentrator designed, for example, according to FIG.
  • Transverse direction 17 are arranged side by side, it follows that the secondary concentrators of the length of the primary concentrator are arranged in several rows, each row of secondary concentrators is aligned with its associated, length of the primary concentrator.
  • two to eight rows of secondary concentrators could thus be provided for four lengths.
  • the primary concentrator is comprised of a number of partially pressurized films lying on each other and having regions of different curvature, and one or more of these regions forming a length segment.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Energy (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Optics & Photonics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Photovoltaic Devices (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

Collecteur cylindro-parabolique pourvu d'une pluralité de concentrateurs secondaires qui concentrent le rayonnement solaire concentré par le concentrateur du collecteur cylindro-parabolique dans une première direction transversale à la longueur dudit collecteur dans une seconde direction le long dudit concentrateur. Les concentrateurs secondaires comportent chacun une première paroi avant réfléchissante et une seconde paroi arrière réfléchissante qui concentrent le rayonnement dans la seconde direction, lesdits concentrateurs secondaires étant disposés de manière à pourvoir pivoter ensemble de manière synchronisée, de préférence autour d'un axe de pivotement fixé par rapport au concentrateur primaire, de manière telle que lorsque la position du soleil change, ils peuvent être orientés en permanence selon le rayonnement incident. Le collecteur est caractérisé en ce que les première et seconde parois réfléchissantes des concentrateurs secondaires présentent dans la zone d'entrée du rayonnement une longueur différente, de sorte qu'une paroi réfléchissante plus longue d'un concentrateur secondaire se trouve toujours à côté d'une paroi réfléchissante plus courte du concentrateur secondaire voisin. Les concentrateurs secondaires peuvent ainsi être disposés côte à côte, sans être séparés par un espace, et restent cependant pivotants sur une plage de moins 20 degrés à plus 70 degrés par rapport au concentrateur primaire.
EP12805912.8A 2011-11-29 2012-11-22 Collecteur solaire pourvu d'un système concentrateur pivotant Withdrawn EP2786079A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH01906/11A CH705811A2 (de) 2011-11-29 2011-11-29 Rinnenkollektor mit einer Anzahl von Sekundärkonzentratoren.
CH01910/11A CH705771A2 (de) 2011-11-29 2011-12-01 Rinnenkollektor mit einer Anzahl von Sekundärkonzentratoren.
PCT/CH2012/000260 WO2013078567A2 (fr) 2011-11-29 2012-11-22 Collecteur solaire pourvu d'un système concentrateur pivotant

Publications (1)

Publication Number Publication Date
EP2786079A2 true EP2786079A2 (fr) 2014-10-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12805912.8A Withdrawn EP2786079A2 (fr) 2011-11-29 2012-11-22 Collecteur solaire pourvu d'un système concentrateur pivotant

Country Status (7)

Country Link
US (1) US20140332054A1 (fr)
EP (1) EP2786079A2 (fr)
AU (1) AU2012344705A1 (fr)
CH (2) CH705811A2 (fr)
CL (1) CL2014001416A1 (fr)
MX (1) MX2014006379A (fr)
WO (1) WO2013078567A2 (fr)

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EP3015789A1 (fr) * 2014-10-31 2016-05-04 Heliovis AG Dispositif de concentration du rayonnement solaire avec coussin gonflable de concentration
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MX2016012872A (es) * 2016-09-30 2018-03-30 Fabian Bricio Arzubide Alvaro Sistema de concentracion, almacenamiento y administracion de energia solar.
CN110108326B (zh) * 2019-06-06 2023-10-10 中国能源建设集团陕西省电力设计院有限公司 梯形集热光斑能量与热流密度测量系统及方法

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US20140332054A1 (en) 2014-11-13
CH705771A2 (de) 2013-05-31
WO2013078567A3 (fr) 2013-08-15
WO2013078567A2 (fr) 2013-06-06
CL2014001416A1 (es) 2014-12-19
CH705811A2 (de) 2013-05-31
MX2014006379A (es) 2014-07-22
AU2012344705A1 (en) 2014-07-24

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