WO2011061122A2 - Élément collecteur, ensemble et installation de cellules solaires - Google Patents

Élément collecteur, ensemble et installation de cellules solaires Download PDF

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Publication number
WO2011061122A2
WO2011061122A2 PCT/EP2010/067349 EP2010067349W WO2011061122A2 WO 2011061122 A2 WO2011061122 A2 WO 2011061122A2 EP 2010067349 W EP2010067349 W EP 2010067349W WO 2011061122 A2 WO2011061122 A2 WO 2011061122A2
Authority
WO
WIPO (PCT)
Prior art keywords
collector element
solar cell
collector
liquid
house roof
Prior art date
Application number
PCT/EP2010/067349
Other languages
German (de)
English (en)
Other versions
WO2011061122A3 (fr
Inventor
Ingo Ramsteiner
Kai Garnier
Hendrik Boedeker
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2011061122A2 publication Critical patent/WO2011061122A2/fr
Publication of WO2011061122A3 publication Critical patent/WO2011061122A3/fr

Links

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
    • H01L31/055—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means where light is absorbed and re-emitted at a different wavelength by the optical element directly associated or integrated with the PV cell, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
    • 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
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/52—PV systems with concentrators

Definitions

  • the invention relates to a collector element of a solar cell array, which contains in a collector housing, which is designed for opening and reclosing, a filling having a fluorescent dye, and a solar cell assembly and solar cell installation, which is designed with such a collector element.
  • the main cost driver of PV technology is the production of solar cells, since the corresponding raw materials are expensive to produce and process. As early as the 1970s, it was therefore proposed to concentrate the solar radiation before conversion into the PV cell in order to significantly reduce the area of the PV materials used and thus save costs. In addition to conventional optical focusing elements (mirrors, lenses, etc.), it has been proposed to use so-called fluorescence concentrators.
  • a solar cell On the said side surface, a solar cell is arranged whose size is adapted to that of the side surface.
  • the desired concentration of the incident solar radiation can be achieved on a relatively small solar cell area.
  • the substance used as a fluorescent dye must meet some requirements to cause a high efficiency of the fluorescence collector. Thus, the absorption and emission spectrum of the dye should be cleanly separated. Possibly.
  • a plurality of dyes can be used in one construction, which according to the prior art takes place via a tandem arrangement of a plurality of collectors, each with a dye system.
  • organic fluorescent dyes the z. B. can also be used in dye lasers, and as a second option nanoparticles.
  • both classes mentioned have disadvantages.
  • Organic dyes bleach significantly over the typical life of PV cells (about 20 years), which greatly reduces the efficiency of the fluorescence collector.
  • Nanoparticles are still far too expensive to produce in order to compete with conventional PV technology. For the latter reason, only the use of organic dyes currently comes for cost reasons in question.
  • the fact that fluorescent dyes fade and therefore have to be exchanged has already been known for some time from the field of dye lasers. Therefore, in a dye laser, the solution is pumped through the resonator at high rate (often as a free jet) to compensate for rapid fading by the extreme light intensities through constant exchange.
  • the dye contained in the solution interacts with the adjacent layers. This can be z. B. cause the dye attaches to the layers and can not be removed by draining the liquid. On the other hand, it may happen due to operator error that when draining or filling the dye liquid enters the environment. This can not only lead to a chemical stress on the environment, but due to the strong coloring effect of organic dyes even at high dilution to a strong aesthetic impairment of the environment.
  • the invention it is proposed to encapsulate the organic dye in a plastic or glass granules and to use this as a substitute for the liquid described above.
  • the individual balls of the granules are significantly smaller than the geometric dimensions of the collector to be filled, so that it does not cause blockages during the filling process.
  • the collector with water or another transparent, environmentally friendly liquid medium as possible filled.
  • the medium may optionally be a paste or a gel in addition to a liquid, and it may be prepared in a further embodiment based on water.
  • the refractive index of the granulate particles is then adjusted in the production process so that it corresponds to that of the liquid, pasty or gel-like medium, so that no refraction phenomena occur at the interfaces between the two.
  • the density of the particles corresponds to that of the surrounding fluid, so that the spheres distribute themselves uniformly and do not sink or float.
  • the granulate-liquid mixture behaves similar to a viscous liquid and can therefore be transported through a smaller opening in and out of the collector. Accordingly, in a further embodiment of the
  • the collector housing has a closable inlet and a closable drain. More specifically, it can be provided that the collector housing is cuboidal and the inlet is arranged at or near a first narrow end face and the drain at or near a second, the first opposite narrow end face.
  • the collector filling z. B. to be renewed in an in-roof installation on a sloping roof from the inside of a house on a simple pipe without having to climb the roof.
  • Several collectors can be supplied in parallel via one connection.
  • the filling can be done from the outside, if the roof is not to be drilled. If holes are allowed, however, the filling can also take place from the inside, wherein the connecting elements to the roof can possibly be used for the filling. With a flat roof climbing the roof is generally no problem, so here is the
  • FIGS. 1 to 3 solar cell arrangements with collector elements according to the prior art
  • Collector element and Figs. 5a to 5c are schematic representations of solar cell installations with a collector element according to the invention in or on a house roof.
  • Fig. 1 shows a schematic cross-sectional representation of the principle of operation of a solar cell assembly 10 with radiation collector in the incident radiation (sunlight) impinges on a main surface of a cuboid collector element 11, generated in this fluorescence and from there the fluorescent light (partially via a mirror 12) to a Solar cell 13 is directed.
  • the collector element 11 may be made of glass or a plastic (such as PMMA) and has in the embodiment shown in Fig. 1 on the light-facing surface, a fluorescent layer 14, in which a fluorescent dye is incorporated. This converts the incident light L in fluorescent light L ', which after multiple reflections on the surfaces of the collector element 11 and the mirror 12 finally reaches a large part of the surface of the solar cell 13 and is converted there into electrical energy.
  • FIG. 2 shows, as a modified embodiment, a solar cell arrangement 20, which comprises a collector element 21, a mirror 22 and a solar cell 23, the collector element 21 here consisting of a block colored with fluorescent dye.
  • Fig. 3 shows a further modified embodiment, a solar cell assembly 30, which is basically constructed as the arrangements of Fig. 1 and 2, wherein the collector element 31, however, a collector housing 31a with a closable inlet 31b and outlet 31c, which with a fluorescent dye containing solution 31d is filled. Through the openings 31d and 31c, an exchange of the solution containing the fluorescent dye is made possible when the irradiation-induced degeneration of the dye has reached a predetermined limit.
  • the collector housing 41a of the collector element 41 accommodates a granules of particles 41e embedded in a colorless liquid 41d and containing a fluorescent dye.
  • the particles 41e consist of a material which is insoluble in the liquid 41d and may in particular have a structure (not shown) in which a substance containing the fluorescent dye or the dye itself is enclosed in a shell whose refractive index is matched to that of the liquid 41d , The density of the particles 41e corresponds to that of the liquid 41d, so that the particles remain evenly distributed in the liquid and a decrease over longer operating time is prevented.
  • the openings 41b and 41c the liquid with the granules particles contained therein can be exchanged to replace particles with spent fluorescent dye after the corresponding service life by particles with fresh dye.
  • FIGS. 5a to 5c show various variants of the installation of the collector element 41 according to the invention of a solar cell arrangement (not shown in its entirety) in or on a roof R in the manner of a sketch.
  • FIG. 5a shows an inflow line 44 and a drain line 45, each with associated (not separately designated) valve below the roof inside the building and in the immediate vicinity of the collector element through the Roof skin.
  • Fig. 5b shows the particular simple arrangement according to modified inflow and outflow lines 44 ',.45' above the roof
  • Fig. 5c shows that even in an on-roof installation, the inflow and outflow lines arranged below the roof and provided the roof skin piercing connecting lines to the collector element could be.

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)

Abstract

L'invention concerne un élément collecteur (41) d'un ensemble de cellules solaires (40), comportant un matériau de remplissage présentant un colorant fluorescent dans un boîtier de collecteur (41a) conçu pour être ouvert et refermé, au moins une partie, notamment une partie importante ou la totalité du colorant fluorescent étant enfermée dans des particules (41e) d'un granulat présentant des parois perméables à la lumière.
PCT/EP2010/067349 2009-11-18 2010-11-12 Élément collecteur, ensemble et installation de cellules solaires WO2011061122A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910046794 DE102009046794A1 (de) 2009-11-18 2009-11-18 Kollektorelement, Solarzellenanordnung und Solarzelleninstallation
DE102009046794.7 2009-11-18

Publications (2)

Publication Number Publication Date
WO2011061122A2 true WO2011061122A2 (fr) 2011-05-26
WO2011061122A3 WO2011061122A3 (fr) 2012-01-05

Family

ID=43877464

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/067349 WO2011061122A2 (fr) 2009-11-18 2010-11-12 Élément collecteur, ensemble et installation de cellules solaires

Country Status (3)

Country Link
DE (1) DE102009046794A1 (fr)
TW (1) TW201123500A (fr)
WO (1) WO2011061122A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6134988B2 (ja) * 2011-07-29 2017-05-31 コーニング インコーポレイテッド 太陽光赤方偏移システム
ITFI20120237A1 (it) * 2012-11-05 2014-05-06 Raoul Cangemi Pannello solare a batteria ricaricabile

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149902A (en) 1977-07-27 1979-04-17 Eastman Kodak Company Fluorescent solar energy concentrator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2501907A1 (de) * 1975-01-18 1976-07-22 Werner H Prof Dr Ing Bloss Vorrichtung zum nutzen von sonnenenergie mit wenigstens einer solarzelle
US4135537A (en) * 1978-03-20 1979-01-23 Atlantic Richfield Company Light collector
US6734466B2 (en) * 2002-03-05 2004-05-11 Agilent Technologies, Inc. Coated phosphor filler and a method of forming the coated phosphor filler
JP4318710B2 (ja) * 2006-10-12 2009-08-26 シャープ株式会社 ナノ結晶粒子蛍光体と被覆ナノ結晶粒子蛍光体、ならびに被覆ナノ結晶粒子蛍光体の製造方法
WO2008116079A1 (fr) * 2007-03-20 2008-09-25 Evident Technologies, Inc. Points quantiques en poudre
JP2009167338A (ja) * 2008-01-18 2009-07-30 Sharp Corp 波長変換部材およびこれを備える発光装置、ならびに蛍光体
DE202008010452U1 (de) * 2008-08-06 2009-09-17 Linder, Patrik Fotovoltaikmodul und Fotovoltaikanlage

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149902A (en) 1977-07-27 1979-04-17 Eastman Kodak Company Fluorescent solar energy concentrator

Also Published As

Publication number Publication date
WO2011061122A3 (fr) 2012-01-05
DE102009046794A1 (de) 2011-05-19
TW201123500A (en) 2011-07-01

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