EP3987234A1 - Concentrateur d'énergie solaire, dispositif de concentrateurs et procédé de concentration de rayonnement d'énergie solaire dans une zone focale au moyen d'un concentrateur d'énergie solaire - Google Patents

Concentrateur d'énergie solaire, dispositif de concentrateurs et procédé de concentration de rayonnement d'énergie solaire dans une zone focale au moyen d'un concentrateur d'énergie solaire

Info

Publication number
EP3987234A1
EP3987234A1 EP20740543.2A EP20740543A EP3987234A1 EP 3987234 A1 EP3987234 A1 EP 3987234A1 EP 20740543 A EP20740543 A EP 20740543A EP 3987234 A1 EP3987234 A1 EP 3987234A1
Authority
EP
European Patent Office
Prior art keywords
concentrator
sun
solar energy
tracking
reflectors
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Withdrawn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
EP20740543.2A
Other languages
German (de)
English (en)
Inventor
Vladan Petrovic
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.)
Areos Energie Ag
Original Assignee
Areos Energie Ag
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 Areos Energie Ag filed Critical Areos Energie Ag
Publication of EP3987234A1 publication Critical patent/EP3987234A1/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
    • F24S25/12—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface using posts in combination with upper profiles
    • 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
    • F24S30/452—Vertical primary 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
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • 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
    • 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
    • F24S2023/878—Assemblies of spaced reflective elements in the form of grids, e.g. vertical or inclined reflective elements extending over heat absorbing elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S2030/10—Special components
    • F24S2030/13—Transmissions
    • F24S2030/131—Transmissions in the form of articulated bars
    • 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

Definitions

  • Parabolic power plants are more suitable for generating high-temperature heat, which can be kept ready in a heat store with a larger storage capacity. It is disadvantageous that the absorber must be positioned in the focus of the parabolic mirror, so that part of the area of the parabolic mirror is lost due to the shading. According to this concept, smaller units can be designed, which can be seen as an advantage compared to tower power plants.
  • the parabolic mirrors track the sun on three axes, which means that a large concentration ratio can be achieved and high temperatures can be achieved.
  • the concentration temperature of the sun's rays must be high (order of magnitude from 800 ° C).
  • it is necessary to specify a concentrator for solar radiation which, among other things, is adapted for long-term heat storage.
  • the compactness of the system is of particular importance for a more decentralized use of solar energy.
  • questions about the controllability of tracking very large concentrators according to the position of the sun are particularly important.
  • This example shows that the concentrator based on the principle known from WO 2012/065725 A2 is excellently suited for high-temperature generation from solar energy.
  • the concentrator can be arranged on a supporting structure resting on a foundation.
  • a particularly vertical distance between the concentrator and an absorber and / or heat storage device arranged on its side facing away from the sun can be provided and advantageously adjustable.
  • the temperature of a heat storage mass is preferably determined by regulating the width of the spectrum of the sun's rays.
  • All flat mirrors preferably rotate at the same angle, which makes the problem much easier to solve in terms of design.
  • the flat mirrors can be made of light and thin, either polished aluminum sheet (e.g. 0.5 mm thick) or of conventional steel (also 0.5 mm thick), expediently coated with mirrored foil or the like.
  • the invention provides a method for concentrating solar energy radiation in a focal zone by means of a concentrator according to the invention, comprising rotating the reflector arrangement for azimuth tracking about an azimuth tracking axis and deflecting the reflectors about an elevation tracking axis transversely to the azimuth tracking axis, the reflector arrangement plane being expediently supported by the tracking remains unchanged.
  • FIG. 2 shows the concentrator according to the invention, here firmly positioned parallel to the ground.
  • 2.1 shows a rotating mechanism, comprising flat mirrors 2.2, and a circular U-profile 2.3, and vertical support columns with rotating rollers 2.4.
  • Fig. 5 is an example of the application of the new solar system to illustrate that a usable area of 8120 m2 (81.2%) per 1 ha can be achieved, i.e. 4 large concentrators with a diameter of 50 m each and 1 concentrator with 20 m Diameter.
  • FIG. 1 shows a concentrator 1 known from WO 2012/065725 A2, which according to the invention does not track the sun. Its task is only to concentrate vertical sun rays 2 (they are reflected by flat mirrors so that they fall perpendicular to the Kon centrator 1) according to any concentration ratio.
  • the vertical rays of the sun are concentrated in the concentrator and fed directly into the heat storage 2.7.
  • An absorber for example according to WO 2013/167158 A1, is provided in the heat accumulator, the task of which is to efficiently convert solar rays into heat.
  • the absorber can consist of a bed of basalt stone that has a large specific surface area (96 m 2 / m 3 ) in order to efficiently couple in radiation energy and extract heat from the bed.
  • the heat accumulator 2.7 has a large specific storage capacity (520 kWh / m 3 ) and excellent (specific) insulation such that it forms a long-term heat accumulator.
  • the heat is decoupled from the heat accumulator by means of air as the heat transfer medium with the aid of a fan 2.10.
  • the fan 2.10 is designed for high temperatures.
  • the entire weight is borne by the vertical support pillars 2.6.
  • FIG. 3.2 a flat mirror partial view is shown with vertical support tube 4 (as a column of square tube), with rotating shaft 5 and with mechanical control levers 6 for regulating the angle of rotation for the elevation
  • 4.1 is the representation of the principle of the common rotary movement of all flat mirrors by means of the control lever 6 by means of which all rotary shafts 5 are connected to one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Photovoltaic Devices (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

L'invention concerne un concentrateur comportant un dispositif de focalisation destiné à focaliser de l'énergie solaire sur une zone focale, comprenant un dispositif de réflecteurs destiné à dévier l'énergie solaire vers le dispositif de focalisation, le dispositif de réflecteurs étant pourvu de réflecteurs pouvant suivre l'élévation du soleil et étant globalement capable de suivre rotativement l'azimut du soleil. Il est par ailleurs prévu une commande de suivi de la position du soleil pour le dispositif de réflecteurs, pour la déviation, dépendante de la position du soleil, de l'énergie solaire vers le dispositif de focalisation stationnaire.
EP20740543.2A 2019-06-20 2020-06-22 Concentrateur d'énergie solaire, dispositif de concentrateurs et procédé de concentration de rayonnement d'énergie solaire dans une zone focale au moyen d'un concentrateur d'énergie solaire Withdrawn EP3987234A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202019002630 2019-06-20
EP19188306 2019-07-25
PCT/EP2020/067331 WO2020254685A1 (fr) 2019-06-20 2020-06-22 Concentrateur d'énergie solaire, dispositif de concentrateurs et procédé de concentration de rayonnement d'énergie solaire dans une zone focale au moyen d'un concentrateur d'énergie solaire

Publications (1)

Publication Number Publication Date
EP3987234A1 true EP3987234A1 (fr) 2022-04-27

Family

ID=71620394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20740543.2A Withdrawn EP3987234A1 (fr) 2019-06-20 2020-06-22 Concentrateur d'énergie solaire, dispositif de concentrateurs et procédé de concentration de rayonnement d'énergie solaire dans une zone focale au moyen d'un concentrateur d'énergie solaire

Country Status (2)

Country Link
EP (1) EP3987234A1 (fr)
WO (1) WO2020254685A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US608755A (en) * 1898-08-09 District of co
US3905352A (en) * 1973-08-31 1975-09-16 Arnold Jahn System for collecting and transferring usable solar heat
DE102007021521A1 (de) * 2007-03-20 2008-10-02 Reinhold Ruck Positionierantrieb und Solarmodul-Positioniervorrichtung mit wenigstens einem Positionierantrieb
DE202010015433U1 (de) 2010-11-16 2012-03-16 Vladan Petrovic Sonnenenergie-Konzentriereinheit
US20120325313A1 (en) * 2011-06-22 2012-12-27 Palo Alto Research Center Incorporated Solar-Tower System With High-Focus-Accuracy Mirror Array
US8844515B2 (en) * 2011-08-22 2014-09-30 Palo Alto Research Center Incorporated Carousel heliostat having louvered horizontal mirrors for solar tower systems
DK2847442T3 (da) 2012-05-11 2019-10-14 Vladan Petrovic Langtidsvarmelager og fremgangsmåde til langvarig varmelagring af solenergi samt andre typer af energi med skiftende tilgængelighed
WO2017024038A1 (fr) * 2015-08-03 2017-02-09 The Arizona Board Of Regents On Behalf Of The University Of Arizona Concentrateur solaire pour récepteur central monté sur une tour
GR1009200B (el) * 2016-02-01 2018-01-23 Κωνσταντινος Σταυρου Αλεξανδρης Συστημα υπερσυγκεντρωσης ηλιακης ακτινοβολιας για την παραγωγη υψηλων θερμοκρασιων
GB2555572B (en) * 2016-10-19 2021-03-10 Storenergy D O O Solar concentrator, solar receiver and thermal storage

Also Published As

Publication number Publication date
WO2020254685A1 (fr) 2020-12-24

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