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WO2016162412A1 - Récepteur destiné à collecter un rayonnement concentré - Google Patents

Récepteur destiné à collecter un rayonnement concentré Download PDF

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Publication number
WO2016162412A1
WO2016162412A1 PCT/EP2016/057608 EP2016057608W WO2016162412A1 WO 2016162412 A1 WO2016162412 A1 WO 2016162412A1 EP 2016057608 W EP2016057608 W EP 2016057608W WO 2016162412 A1 WO2016162412 A1 WO 2016162412A1
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WO
WIPO (PCT)
Prior art keywords
receiver according
receiver
heat
pressure tubes
temperature
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.)
Ceased
Application number
PCT/EP2016/057608
Other languages
German (de)
English (en)
Inventor
Ulrich Bech
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to HK18109662.8A priority Critical patent/HK1250253A1/zh
Priority to CN201680033026.3A priority patent/CN107864665A/zh
Publication of WO2016162412A1 publication Critical patent/WO2016162412A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/006—Methods of steam generation characterised by form of heating method using solar heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
    • 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
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/30—Solar heat collectors for heating objects, e.g. solar cookers or solar furnaces
    • 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
    • F24S60/20—Arrangements for storing heat collected by solar heat collectors using chemical reactions, e.g. thermochemical reactions or isomerisation reactions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S70/00—Details of absorbing elements
    • F24S70/10—Details of absorbing elements characterised by the absorbing material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S70/00—Details of absorbing elements
    • F24S70/60—Details of absorbing elements characterised by the structure or construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/10—Materials for heat-exchange conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/20—Working fluids specially adapted for solar heat collectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
    • F28D2020/0082—Multiple tanks arrangements, e.g. adjacent tanks, tank in tank
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/10—Safety or protection arrangements; Arrangements for preventing malfunction for preventing overheating, e.g. heat shields
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage
    • 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
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Definitions

  • the invention relates to a receiver for collecting concentrated radiation, preferably solar radiation from a mirror field, according to the preamble of
  • Cooling with molten salts has the advantage that they only become unstable at approx. 600 ° C, so that max. 570 ° C can also be a use as a storage medium can be scheduled.
  • Test plants with heated molten salts are designed for temperatures up to 520 ° C, planned up to 570 ° C.
  • the required salt mixtures however, have solidification points> 220 ° C, which makes the necessary facilities for storage very
  • US Patent Application No. 2006/0174866 describes a high-temperature volumetric solar receiver having a cavity for absorbing heat, a two-day window, and an inlet and an outlet communicating with the cavity. Between the window layers, a cavity is provided, which
  • the heat-absorbing cavity 20 has an outlet to the heat-absorbing cavity. Through an inlet, a fluid can be introduced into the cavity between the window layers, which passes into the cavity via the outlet. In this way, the temperature at the window can be kept low and overheating can be avoided.
  • the heat-absorbing cavity is arranged with a behind this
  • US Patent No. 3,981,151 The aim of US Patent No. 3,981,151 is to increase the yield of agricultural crops by applying light to them at night. It will proposed an energy conversion system in which solar energy is focused on a latticework of refractory bricks, which then heat a drawn through the latticework air flow. The hot air stream is then passed through a pile of pebbles, which stores the heat. When energy is needed 5 at times when the sun is not shining, air is drawn through the pebbles and fed to a power conversion system, eg, a steam or gas turbine, and then converted into electrical energy. This allows plants to be irradiated with artificial light during the night.
  • a power conversion system eg, a steam or gas turbine
  • US 4,312,324 relates to an open solar receiver which is protected against wind 10.
  • the solar receiver consists of a cavity, an inlet, a cavity arranged in the heat exchanger in the form of a ceramic honeycomb structure and a frusto-conical concentrator. Sunlight reflected by a mirror field is focused on the heat exchanger, which is thereby warmed up. Air, which is drawn in the circuit through the heat exchanger and a heat storage IS, heats the heat storage to about 1100 ° C. The latter can then be decoupled and connected to a gas turbine to recover electrical energy.
  • This solar receiver operates open, i. At atmospheric pressure, the energy transfer to the memory can therefore be slow.
  • US 4,401,103 describes a system consisting of an array of collectors 20 that can follow the sun gear, focus the received sunlight, and then aim at a target.
  • the system further includes a storage chamber and means for circulating fluid between the target and the storage chamber. This is liquid cooling ( " fluid”) - how this works in the receiver remains unclear.
  • WO 2014/037582 discloses a receiver for collecting concentrated solar radiation from a surrounding mirror field.
  • the receiver has a container with at least one light inlet opening, as well as an inlet and an outlet for a cooling medium.
  • an absorber body is provided, which is at least partially formed as a black body and from a variety
  • the absorber body for collecting the radiant energy and converting it into thermal energy arranged behind the light entry opening.
  • heat storage elements are provided as a high-temperature storage in the coupled container, which serve the power generation in the evening, when the sun is no longer shining.
  • the receiver described has the advantage that it can absorb highly concentrated solar radiation 5 and dissipate the heat by means of gas flow through the existing channels and so can heat directly adjacent thermal storage elements. The heat energy stored in the memory elements can then be used to operate, for example, a gas turbine when the sun is no longer shining.
  • the object is realized by a receiver for collecting radiation from a surrounding mirror array comprising 20 - a container with at least one Strahlenseintrittsöffhung, provided in the container Absorberkörpem, which are at least partially formed as a black body and arranged behind the radiation inlet opening, for collecting the radiation energy and Conversion of the same into thermal energy,
  • a storage space for heat storage elements forming a high-temperature storage, which defines a storage zone, and, in the receiving space existing heat storage elements, for later use
  • the stored thermal energy that can be removed by heat exchangers / condensers at high temperature is not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to heat storage elements, and, in the receiving space existing heat storage elements, for later use
  • a cooling circuit forming pressure tubes are present in the channels, which extend from the Absorberkörpem in the receiving space and in which vaporized in order to dissipate the heat absorbed in the hot absorber bodies heat liquid metal and is condensed in the high-temperature storage or other consumers.
  • the absorbed heat is expediently removed uniformly and concentrated, by means of
  • Pipe joints which are also armored - after joining - in coupled memory range, for heat dissipation through pipe or
  • the absorber bodies For the purpose of dissipating the heat from the receiver surface into the cooling channels, the absorber bodies have an expedient geometry in which the receiver components (preferably carbidic composites) which are very hot due to the heat are distributed in a ring around the cooling tubes, so that they are uniformly intense
  • the pressure tubes are stabilized with high temperature resistant fiber bundles.
  • the pressure tubes have the advantages of a composite material in which different materials with 30 specific material properties are combined to form a material which has all the advantages of the combined materials.
  • the fiber bundles cause the pressure tubes to withstand very high pressures and temperatures.
  • the pressure tubes comprise a liner within the stabilizing fiber bundles.
  • the pressure tubes inside have a metallic coating, namely the liner, represented by a thin-walled tube metallurgically the inside evaporating (light) metal
  • the pressure tubes comprise a flexible braid or tissue.
  • the braid is preferably made of CFC and can be wrapped around the liner. The winding can be done quickly and causes by the overlapping of the braid as a bandage 20 improved stability after sintering.
  • the receiving space and the container are separate components, wherein the pressure tubes are connected at the junction of the container and the receiving space connectable, whereby first and second pressure tubes are formed.
  • the container can be removed from the receiving space, whereby a quick access to the receiving space, for example, for maintenance purposes, is possible.
  • the receiving space and the container (storage) are preferably connectable by a flange connection.
  • the ends of the first pressure tubes are arranged at the bottom of the container and are preferably welded into the ground.
  • the 30 bottom of the container therefore holds as tubesheet, similar to a Shell and tube heat exchanger, the ends of the first pressure tubes on. This gives the first pressure tubes additional stability and the container can be quickly removed together with the first pressure stirs.
  • the ends of the second pressure tubes are arranged on the container 5 facing the end face of the receiving space and connectable to the ends of the first pressure tubes.
  • the ends of the first and second pressure tubes coincide and can be plugged together, for example.
  • the tube ends can be automatically connected to each other when the container is placed on the receiving space.
  • the ends of the second pressure tubes are welded into the cover plate of the capacitor such that the ends of the first and second pressure tubes are aligned in the assembled state.
  • the absorber body preferably has the shape of a funnel or a V-shaped
  • the funnel or the V-shaped body may preferably be constructed from a plurality of discs or segments.
  • This construction has the advantage that the pressure tube heat conductors can be attached to the individual panes.
  • the discs or segments are connected to the pressure tube heat conductors so that they are enclosed with spacers, so that the energy
  • the pressure tubes are therefore preferably only in places or at points on the inner walls of the channels.
  • the spacers can be designed as a ring segment, which are pushed over the liner or over the wrapped liner.
  • the ring segments which form the outer walls of the pressure tubes, surveys
  • the pressure tube heat conductors are at least in the connection region with the absorber bodies a composite, preferably of carbon fibers with Si / SiC infiltrated.
  • the composite in the matrix of the braid or fabric may also contain other than carbon fibers, e.g. SiC fibers.
  • the discs or segments openings.
  • the openings form the channels of the absorber body.
  • the cooling circuit of the receiver in the high-temperature range can be embodied by a multiplicity of parallel pressure pipes which open outside the high-temperature storage zone into a heat exchanger / condenser which serves as a heater for a second cooling circuit.
  • the thermal energy absorbed by the cooling circuit is thereby used in an optimized way, either by being stored or by being delivered immediately to a second cooling circuit.
  • the cooling circuit of the receiver is realized in that the vaporous liquid metal can be condensed directly to the storage media.
  • the liquid metal therefore does not have to be completely guided in a closed circuit of pressure tubes, but can also be brought directly to the storage media in the 20 storage areas and thereby condense.
  • endothermic chemical reactions can proceed.
  • This can be, for example, a carbothermic zinc oxide reduction.
  • the harvested heat is thus usable, for example, to produce pure zinc, which in turn can be used in the production of hydrogen.
  • the absorber body has a Lichtfanggeometrie which is suitable to capture incident light by multiple reflection on black areas and convert it into heat. As a result, the heat energy is almost completely absorbed by the black walls of the absorber body.
  • the receiver can have a high-temperature accumulator and a lower-temperature S accumulator adjacent to the high-temperature accumulator, and the high-temperature accumulator is preferably separated from the lower-temperature accumulator by a heat-insulated wall.
  • the geemtete heat energy can be used by this arrangement maximum.
  • the second cooling circuit for steam generation and gas-chemical reactions can be used.
  • the second cooling circuit can be heated by the low-temperature storage.
  • the generated steam can be used for the operation of a gas turbine or for the end of endothermic reactions. If there is no sunlight for heating the low-temperature storage, the heat energy can be taken out of the high-temperature storage.
  • the receiver can be used in ring form for concentrated, vertical solar radiation by a mirror device directs the solar radiation perpendicular to the center of the receiver.
  • the V-shaped absorber stack are open to the center of the receiver to absorb as much sunlight as possible.
  • the annular absorber arrangement also makes it possible for nuclear fuel elements or nuclear radiation bodies to be able to be introduced into the ring.
  • the second cooling circuit can be filled by means of a 25 plunger pump with solid pellets which melt at a higher temperature or decompose gaseous / vaporous.
  • the inventive receiver is suitable to implement endothermic chemical reactions or to melt metals.
  • the second cooling circuit in the upper region of the low-temperature storage tank expediently has at least one outlet which leads to a cooling / Condensation section leads, which has a separation device for gas-liquid separation and a subsequent Abgiess adopted for recovering the metal produced.
  • gases and molten metal resulting from chemical reactions can be separated easily and used separately.
  • the second cooling circuit is equipped in the hot reaction zone with catalysts which promote hot-gas synthesis in further heat exchangers.
  • the catalysts can be used for the preparation of various hydrocarbons or the e.g. lower the reaction temperature for carbothermic processes, e.g. Metal carbonyl or Ce / Fe oxide or 10 nickel oxide interactions.
  • the pressure tubes convert thermal energy into the high-temperature reservoir during daytime operation.
  • the heat energy stored in the high-temperature storage after the end of solar radiation for direct operation of a gas turbine in peak load times on call serve IS by the first receiver loop is continued and then leads to evaporation in the high-temperature storage.
  • an endothermic chemical reaction can be extended into the evening.
  • the pressure tubes on fiber bundles of sliver, which is coated with a binder and to the
  • the sliver is preimpregnated with the binder. Once wrapped around the liner, the sliver can be cured, for example, by being sintered with an electric induction heater. As a result, a rapidly producible, stable and temperature-resistant casing for the pressure tubes can be produced.
  • the pressure tubes with the binder are preferred
  • the pressure tubes are surrounded by carbon fiber-reinforced composite material (CFC) rings, in particular at welded connection zones.
  • CFC carbon fiber-reinforced composite material
  • substantially vertical channels for the passage of a cooling medium or the recording of the pressure tube heat conductors 5 are present.
  • the pressure tube heat conductors allow the rapid removal of heat absorbed by the absorber body by means of metal evaporation.
  • the receiver according to the invention has the great advantage that it absorbs highly concentrated radiation and can thus dissipate the heat through the existing channels in the absorber bodies and, for example, can heat up directly adjacent thermal storage elements.
  • the storage elements may be present in the same or an adjacent container.
  • the stored thermal energy can be used when the sun is no longer shining to operate, for example, a gas turbine or to implement an endothermic chemical reaction.
  • Fig. 1 shows a schematic representation of a first embodiment of a receiver according to the invention with a ring-shaped absorber stack, which is connected for the purpose of dissipation of heat energy with a plurality of pressure tube heat conductors, which extend into the high-temperature memory of the receiver.
  • the ring is to be carried out as far as the radiation from a laterally mounted mirror field requires it.
  • the absorber stacks can also be arranged in an annular manner with an opening inwards. The pressure tube heat conductors are then led away to the outside, to the respective users of the energy source.
  • FIG. 2 schematically shows a second embodiment of a receiver in which V-shaped, vertically stacked absorber bodies receive the radiation and allow the metal evaporation to take place in the cooling channels, the pressure tube heat conductors are then connected to a high-temperature storage tank (or more, according to the needs of the 'consumers': ,, ⁇ + ,, ⁇ ).
  • 3 shows schematically a third exemplary embodiment of a compact receiver in which a high-temperature storage tank is connected via a heat exchanger to a range for various applications ("I-II-III-IV"), where heat exchangers / condensers can be installed in different temperature zones which optimally exploit the thermodynamic gradient.
  • Fig. 4 shows for further explanation symbolically a receiver in side view with a radiation source inside.
  • Fig. 5 shows a side section through a pressure tube heat conductor with a
  • the composite can be made by wrapping or preformed ring segments that prevent creep of the thin-walled inner liner at temperatures above 1000 ° C. Particularly in the area of connections of such tubes, both versions can be used one above the other ("wrap" plus rings).
  • Fig. 6 shows a section at the point VI-VI of the pressure tube heat conductor
  • FIG. 5 is a diagrammatic representation of FIG. 5.
  • a receiver 1 is shown, the essential components are pressure tube 5 heat conductors as Metallsiede channels 2, which lead by means of curved connection pressure pipes 21 in a similar design in a high-temperature storage 3.
  • a V-shaped black absorber body stack IS lies behind a cylindrically curved window 16.
  • the high-temperature reservoir 3 is accommodated in a cylindrical container 20, on the upper end side of which the receiver 1 has connection pressure pipes 21 welded into the bottom of the receiver 10 is arranged.
  • the incident radiation 6 is first further compressed by preconcentrators 7 so that a complete absorption field for the radiation is formed to the outside. This is then reflected several times inside the oblique walls of the V-shaped absorber body IS, and the heat energy absorbed almost completely by the black walls of the absorber 15 body.
  • the absorber bodies 15 In order to remove the heat energy as quickly and efficiently as possible in the high-temperature storage, are in the absorber bodies 15 according to the invention a plurality of pressure tube heat conductors in the second position installed, in which boils liquid with suitable pressure guidance liquid metal, preferably light metal mixtures that boil above 900 ° C at low pressure. It is also possible to accommodate narrow preheating channels 14 in the absorber body, which allows pipe feeds exclusively from above.
  • the receiver 1 is shown in side view.
  • the bottom side of the receiver dome 27 takes up the pressure tube heat conductors 21 as the tube bottom, the upper end side of the high-temperature memory 3 has corresponding connections for the pressure tubes welded onto the bottom surface of the receiver for the supplied
  • the pressure tube heat conductors 2, 21 are preferably formed as strands or tubes,
  • the liquid metal circulation continues to operate at decreasing radiation. Then the evaporation and overheating zone is moved into the still hot areas in the receiver tank and the high-temperature storage.
  • the still occurring, reduced radiation for example, at low sun, the still occurring, reduced radiation
  • Fig. 3 shows the principle of construction of a system that allows in a surrounding cylindrical storage tank 4 a complete circuit for various chemical products, each optimized for the required temperature ranges.
  • Conssumers are then "I” + “II” + “III” + “IV”, as an example is a plant for the mentioned ZnO + C
  • container 20 which surround the high-temperature internal memory 3 and the low-temperature storage 4.
  • the containers for 3 and 4 are filled with ceramic storage balls 9, 10, which can absorb and store the emerging from the pressure tube heat conductors 21 in the high-temperature internal memory 3 in the container 20 heat.
  • FIG. 4 shows views of possible embodiments of the radiation guide. Details of the pressure tube heat conductors are shown in Figures S and 6. Instead of 14, a so-called beam-down mirror device is also conceivable as the radiation concentration: in this case, the radiation source is in the middle and the absorber stacks 15 are correspondingly opened inwards. The pressure tube heat conductors 21 can then
  • FIGS. 5 and 6 show preferred embodiments of a receiver for the entire system when irradiated in the middle of an absorber stack arrangement 26.
  • Designs for the pressure tube heat conductors 21 with internal liner 23, stabilized with CFC-10 wrap 'wrap' 24 and optionally CFC - Rings 25 are shown in FIGS. 5 and 6.
  • the rings 25 may be designed so that they only come into contact pointwise with the surrounding receiver channels 2 or ball memory elements 22.
  • FIGS. 1, 2, 3, 4 with various possible cooling circuits (loops) are suitable for pressure pipes as a gas turbine heating chamber, but also as reaction spaces for various other chemical reactions with an endothermic energy balance, for example only ZnO + C> Zn + CO shown. This results in the following non-exhaustive applications:
  • This application can operate a fast-starting gas turbine by means of a compressed gas circulation in the condenser / heat exchanger "I" coupled to the high-temperature storage area 3.
  • the prerequisite is that the storage area 3 is charged with superheated metal vapor by condensing at S sunshine via the carbon fiber-stabilized pressure tube heat conductors
  • On demand liquid metal in the receiver circuit and the subsequent high-temperature storage 3 can be vaporized, and then in the condenser I, even without radiation from the outside, the protective gas supplied by the compressor of the gas turbine to the condensation temperature
  • the waste heat of the gas turbine can preferably also be used to generate steam in unit "IV", with the possibility of increasing the gas pressure by steam injection by means of a steam jet pump and operating the turbine in the so-called Cheng cycle compact, combi
  • the principle of cooling a high temperature receiver through carbon fiber bundles of stabilized pressure tube heat conductors by metal evaporation can also be used for improved waste heat utilization in high temperature furnace processes. 25
  • the reaction is carried out in a separate loop, driven by a plunger pump 8, which feeds pellets of the raw materials via a feed 28, the endothermic process with gas / vapor evolution is heated by the condensation zone of the cooling pressure tubes.
  • the condensation of the 1 S produced zinc takes place, as well as the separation of the formed CO gas.
  • This is available for other processes, preferably 'water gas shift reaction to produce hydrogen, which is preferably reformed with further CO to CH30H (methanol) to give a valuable fuel additive for mobile use.
  • the generated zinc is taken off at the Zn decrease 29 and can easily be transported 20 and converted to hydrogen at the place of use (preferably locations with unfavorable solar radiation and heavy air pollution by coal heating) with water vapor.
  • This burns in fuel cells or decentralized compact gas turbine / hydrogen engines at the place of consumption with delivery of electric energy + heat for city heating, on call from the operator.
  • the resulting ZnO can then be recycled to the startup process.
  • in the middle ring of the sub high-temperature subsequent condenser are the cooling / reaction tubes with emerging, evaporating liquid zinc. Due to the turbulence and preferably used catalysts - embedded in the pellets Ce-Fe oxide or organic components pressed pellets or metallic in the 30 walls - gives intense reaction (also by parallel CO- Development). According to the invention, there is a considerable power intensity of the production.
  • the cooling tubes that condense the Zn / CO vapor mixture in part, with cooling in countercurrent with about 5 400-500 ° C warm recycle gas.
  • the residual heat in particular from the zinc condensation, can optionally be used in gas and steam turbines, preferably after extinction of the chemical reactions after sunset, when the memory can still deliver gas / steam of up to 1000 ° C.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

L'invention concerne un récepteur (1) destiné à collecter un rayonnement (solaire) concentré provenant d'un champ de miroirs environnant. Le récepteur (1) comporte un contenant (20) présentant au moins une ouverture d'entrée de lumière (16) et une entrée et une sortie pour un milieu de refroidissement, de préférence un métal qui s'évapore. Le contenant (20) contient au moins un corps absorbant (15) conçu au moins par endroits en tant que corps noir et disposé derrière l'ouverture d'entrée de rayonnement (16) pour collecter l'énergie de rayonnement et convertir celle-ci en énergie thermique. Le contenant (20) contient également des éléments réservoirs thermiques (9, 10, 22) servant de réservoir haute température (3) qui sont chauffés par condensation pour produire de l'énergie au crépuscule en l'absence de rayonnement solaire.
PCT/EP2016/057608 2015-04-08 2016-04-07 Récepteur destiné à collecter un rayonnement concentré Ceased WO2016162412A1 (fr)

Priority Applications (2)

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WO2018011363A1 (fr) * 2016-07-15 2018-01-18 Ulrich Bech Système de récepteur de rayonnement haute température
CH713487A1 (de) * 2017-02-27 2018-08-31 Bech Ulrich Hochtemperatur-Strahlungsreceiver-System.
DE102018211800A1 (de) * 2018-07-16 2020-01-16 Horst Schierack Fluidspeichervorrichtung für eine Fluid- und/oder Energiebereitstellungseinrichtung sowie entsprechende Fluid- und/oder Energiebereitstellungseinrichtung
CN118882213A (zh) * 2024-08-01 2024-11-01 西安交通大学 耦合太阳能储热与二氧化碳储能的能源利用系统及方法

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DE102019106414A1 (de) * 2019-03-13 2020-09-17 Deutsches Zentrum für Luft- und Raumfahrt e.V. Kontaktbauteil für eine Salzschmelze, Verwendung eines faserverstärkten Carbidkeramikmaterials für ein Kontaktbauteil, und Verfahren und Vorrichtung zum Fördern, Transportieren, Speichern einer Salzschmelze
DE102021006669A1 (de) 2021-11-05 2023-05-11 Sms Group Gmbh Verfahren und Verarbeitungssystem zum Erwärmen und Weiterverarbeiten von metallhaltigen Produkten unter Nutzung von Solarthermie

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US3981151A (en) 1975-01-20 1976-09-21 St Clair John C Use of solar energy heat gathering and storing systems to increase farm crop yields
US4312324A (en) 1978-08-09 1982-01-26 Sanders Associates, Inc. Wind loss prevention for open cavity solar receivers
US4401103A (en) 1980-04-28 1983-08-30 Thompson Hugh A Solar energy conversion apparatus
US20060174866A1 (en) 2005-02-10 2006-08-10 Yaoming Zhang Volumetric solar receiver
WO2008027649A1 (fr) * 2006-08-29 2008-03-06 Conocophillips Company Tuyau enrobé de fibre sèche
WO2010034071A1 (fr) * 2008-09-25 2010-04-01 Solfast Pty Ltd Capteur solaire
US20130152917A1 (en) * 2010-06-11 2013-06-20 Centre National De La Recherche Scientifique Solar receiver absorber and solar receiver comprising at least one such absorber
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WO2013181712A1 (fr) * 2012-06-08 2013-12-12 Graphite Energy N.V Récepteur d'énergie solaire
WO2014037582A2 (fr) 2012-09-10 2014-03-13 Ulrich Bech Récepteur d'un rayonnement solaire concentré
WO2015033249A1 (fr) * 2013-09-03 2015-03-12 Carding Specialists (Canada) Limited Appareil de transfert et de stockage d'énergie solaire

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018011363A1 (fr) * 2016-07-15 2018-01-18 Ulrich Bech Système de récepteur de rayonnement haute température
CH713487A1 (de) * 2017-02-27 2018-08-31 Bech Ulrich Hochtemperatur-Strahlungsreceiver-System.
DE102018211800A1 (de) * 2018-07-16 2020-01-16 Horst Schierack Fluidspeichervorrichtung für eine Fluid- und/oder Energiebereitstellungseinrichtung sowie entsprechende Fluid- und/oder Energiebereitstellungseinrichtung
CN118882213A (zh) * 2024-08-01 2024-11-01 西安交通大学 耦合太阳能储热与二氧化碳储能的能源利用系统及方法

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CH711030A2 (de) 2016-10-31
CN107864665A (zh) 2018-03-30
HK1250253A1 (zh) 2018-12-07

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