WO2010140993A1 - Flow solar collector - Google Patents

Flow solar collector Download PDF

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Publication number
WO2010140993A1
WO2010140993A1 PCT/UA2009/000028 UA2009000028W WO2010140993A1 WO 2010140993 A1 WO2010140993 A1 WO 2010140993A1 UA 2009000028 W UA2009000028 W UA 2009000028W WO 2010140993 A1 WO2010140993 A1 WO 2010140993A1
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WO
WIPO (PCT)
Prior art keywords
heat
flow
solar collector
heat exchanger
substance
Prior art date
Application number
PCT/UA2009/000028
Other languages
French (fr)
Russian (ru)
Inventor
Пэтро Владиславович ЩОКИН
Original Assignee
Schiokin Petro Vladyslavovych
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.)
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Publication date
Application filed by Schiokin Petro Vladyslavovych filed Critical Schiokin Petro Vladyslavovych
Priority to CN201080034514.9A priority Critical patent/CN102460033B/en
Priority to PCT/EP2010/057800 priority patent/WO2010139772A2/en
Priority to EP10725658A priority patent/EP2438365A2/en
Publication of WO2010140993A1 publication Critical patent/WO2010140993A1/en
Priority to HK12107245.4A priority patent/HK1166650A1/en

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Classifications

    • 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
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
    • C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
    • 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
    • F24S60/10—Arrangements for storing heat collected by solar heat collectors using latent 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
    • F28D2020/0004—Particular heat storage apparatus
    • F28D2020/0013—Particular heat storage apparatus the heat storage material being enclosed in elements attached to or integral with heat exchange conduits
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • 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 solar technology, in particular to devices for converting solar energy into heat, and can be used to heat water in a domestic environment.
  • a disadvantage of the known solar collector is that it heats up water from a solar radiation through a light-absorbing coating, i.e. lack of heat storage ability.
  • the closest analogue of the claimed device is a flowing solar collector containing a housing with a translucent cover of the lid and a corrugated wall inside. Between the base of the case and the corrugated wall there is a heat accumulator - in the form of a substance with a phase transformation - paraffin. Heated water is fed inside the solar collector into a flow-through heat exchanger formed by a lid and a corrugated wall (Pat. RF Ne 2230263 C2, IPC 7 F24J 2/34, op. 10.06.2004).
  • Common essential features of the known and claimed devices are a heat-insulating housing, a translucent enclosure, a heat accumulator in the form of a substance with a phase transformation, and a flow heat exchanger.
  • the basis of the invention is the task of improving a flow solar collector, in which by using material to absorb sunlight and changing the design and location of the heat exchanger, heat losses are reduced during its accumulation and heating of the liquid, as a result of which an increase in the efficiency of use of solar energy is achieved.
  • the problem is solved in that in a flowing solar collector containing a heat-insulating casing, a translucent enclosure, a heat accumulator in the form of a substance with phase transformation and a flow heat exchanger, in accordance with the invention, at least one surface of the heat accumulator is covered with selective light-absorbing material, elements are installed in the heat accumulator that conduct thermal energy from a selective light-absorbing coating into a substance with a phase transformation, and from it into a liquid of a flowing heat exchanger, and which are flow elements heat exchanger.
  • a eutectic mixture is used as a substance with a phase transformation.
  • a gel based on sodium acetate hydrate was used as a eutectic mixture.
  • fins connected in a package made of heat-conducting material are used as elements of a flow-through heat exchanger.
  • a eutectic mixture as a phase-conversion substance, for example, a gel based on sodium acetate hydrate, provides a decrease in the melting energy of a phase-conversion substance due to the fact that the melting temperature of a solid eutectic mixture is always lower than the melting temperature of a mixture of any other composition, which also helps to reduce losses heat.
  • FIG. 1 shows a General view of a flowing solar collector; in FIG. 2 - its frontal section.
  • the flowing solar collector (Fig. 1, 2) contains a thermally insulated housing 1 with a translucent fence 2. Inside the housing 1 there is a heat accumulator 3 with a filler in the form of a substance with a phase transformation - a eutectic mixture. It can be a gel based on sodium acetate hydrate.
  • the heat accumulator 3 is provided with a selective light-absorbing coating 4 and a flow-through heat exchanger 5, through which heated water flows as needed.
  • the coating 4 is made of a material with a high absorption coefficient and low reflection coefficient, for example, from blackened copper, and the heat exchanger 5 is placed inside the heat accumulator 3 and has a flow pipe 6 and fins 7 made of a heat-conducting material, such as metal, connected in a package. Water flows through the pipe 6 only when the consumer needs it.
  • the process of charge-discharge of the heat accumulator occurs in this way - a quick set of temperature and its stabilization during the charge and, conversely, a long flat phase of the discharge temperature, which does not need additional regulation or stabilization .
  • the discharge of the heat accumulator 3 is characterized by two phases: the first discharge is the supercooling of the mixture with heat transfer to the consumer, the second discharge is the recrystallization of the eutectic mixture at the moment that the consumer needs.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Thermal Insulation (AREA)

Abstract

The flow solar collector is designed for converting solar energy into heat energy, can be used for heating water at home and is directed at reducing heat loss during heat storage and fluid heating and increasing in the efficiency of the use of solar energy. The flow solar collector comprises a heat-insulating housing (1), a translucent fence (2), a heat storage unit (3) in the form of a phase transition substance and a flow heat exchanger (5). Furthermore, at least one surface of the heat storage unit (3) is coated with a selective light-absorbing material (4). The heat storage unit (3) contains elements (7) that are the elements of the flow heat exchanger and are used for transmitting heat energy from the selective light-absorbing coating (4) to the phase transition substance and from the phase transition substance into a fluid of the flow heat exchanger (5).

Description

ПРОТОЧНЫЙ ГЕЛИОКОЛЛЕКТОР FLOWING HELICOLLECTOR
Область техникиTechnical field
Изобретение относится к гелиотехнике, в частности к устройствам для превращения солнечной энергии в тепловую, и может быть использовано для нагрева воды в бытовых условиях.The invention relates to solar technology, in particular to devices for converting solar energy into heat, and can be used to heat water in a domestic environment.
Предшествующий уровень техникиState of the art
Известен проточный гелиоколлектор, содержащий корпус в виде бака с водой со светопрозрачным ограждением и светопоглощающим покрытием (Пат. РФ Ж 2108520 С 1 , МПК6 F24J 2/04, оп. 10.04.98).Known flow-through solar collector containing a housing in the form of a tank with water with a translucent fence and a light-absorbing coating (Pat. RF W 2108520 C 1, IPC 6 F24J 2/04, op. 10.04.98).
Недостатком известного гелиоколлектора является то, что в нем от солнечного излучения через светопоглощающее покрытие нагревается вода, т.е. отсутствие теплоаккумулирующей способности.A disadvantage of the known solar collector is that it heats up water from a solar radiation through a light-absorbing coating, i.e. lack of heat storage ability.
Наиболее близким аналогом заявляемого устройства, выбранным в качестве прототипа, является проточный гелиоколлектор, содержащий корпус со светопрозрачным ограждением крышки и гофрированной стенкой внутри. Между основанием корпуса и гофрированной стенкой размещен аккумулятор тепла - в виде вещества с фазовым превращением - парафин. Нагреваемая вода подается внутрь гелиоколлектора в проточный теплообменник, образованный крышкой и гофрированной стенкой (Пат. РФ Ne 2230263 C2, МПК7 F24J 2/34, оп. 10.06.2004). Общими существенными признаками известного и заявляемого устройств являются теплоизоляционный корпус, светопрозрачное ограждение, теплоаккумулятор в виде вещества с фазовым превращением и проточный теплообменник.The closest analogue of the claimed device, selected as a prototype, is a flowing solar collector containing a housing with a translucent cover of the lid and a corrugated wall inside. Between the base of the case and the corrugated wall there is a heat accumulator - in the form of a substance with a phase transformation - paraffin. Heated water is fed inside the solar collector into a flow-through heat exchanger formed by a lid and a corrugated wall (Pat. RF Ne 2230263 C2, IPC 7 F24J 2/34, op. 10.06.2004). Common essential features of the known and claimed devices are a heat-insulating housing, a translucent enclosure, a heat accumulator in the form of a substance with a phase transformation, and a flow heat exchanger.
В известном гелиоколлекторе солнечное излучение поглощается сначала водой, нагревая ее, потом гофрированной стенкой, после чего отражаясь от последних, снова поглощается водой. При этом при избытке солнечного излучения энергия тратится на нагревание и плавление вещества с фазовым превращением, т.е. аккумулируется, а при отсутствии солнца вода нагревается за счет теплоты, выделяемой при кристаллизации этого вещества. Однако, недостатком известного гелиоколлектора является потеря солнечной энергии при прохождении сквозь воду и, соответственно, уменьшение тепла, поглощаемого теплоаккумулятором, а также потеря тепла при передаче его воде от теплоаккумулятора через гофрированную стенку. Кроме того, металлическая гофрированная стенка имеет довольно высокий коэффициент отражения и передаваемого от нее тепла не хватает на плавление всего объема вещества с фазовым превращением, что также приводит к уменьшению тепла, которое аккумулируется.In the well-known solar collector, solar radiation is absorbed first by water, heating it, then by the corrugated wall, after which it is reflected from the latter and is again absorbed by water. Moreover, with an excess of solar radiation, energy is spent on heating and melting of a substance with a phase transformation, i.e. accumulates, and in the absence of the sun, the water is heated due to the heat released during the crystallization of this substance. However, a disadvantage of the known solar collector is the loss of solar energy when passing through water and, accordingly, the decrease in heat absorbed by the heat accumulator, as well as the loss of heat when it is transferred to water from the heat accumulator through the corrugated wall. In addition, the metal corrugated wall has a rather high reflection coefficient and the heat transferred from it is not enough to melt the entire volume of the substance with phase transformation, which also leads to a decrease in the heat that accumulates.
Раскрытие изобретенияDisclosure of invention
В основу изобретения поставлена задача усовершенствования проточного гелиоколлектора, в котором путем использования материала для поглощения солнечного света и изменения конструкции и расположения теплообменника обеспечивается уменьшение потерь тепла при его аккумулировании и нагревании жидкости, в результате чего достигается повышение эффективности использования солнечной энергии. Поставленная задача решается тем, что в проточном гелиоколлекторе, содержащем теплоизоляционный корпус, светопрозрачное ограждение, теплоаккумулятор в виде вещества с фазовым превращением и проточный теплообменник, в соответствии с изобретением по меньшей мере одна поверхность теплоаккумулятора покрыта селективным светопоглощающим материалом, в теплоаккумуляторе установлены элементы, которые проводят тепловую энергию от селективного светопоглощающего покрытия в вещество с фазовым превращением, а от него - в жидкость проточного теплообменника, и которые являются элементами проточного теплообменника.The basis of the invention is the task of improving a flow solar collector, in which by using material to absorb sunlight and changing the design and location of the heat exchanger, heat losses are reduced during its accumulation and heating of the liquid, as a result of which an increase in the efficiency of use of solar energy is achieved. The problem is solved in that in a flowing solar collector containing a heat-insulating casing, a translucent enclosure, a heat accumulator in the form of a substance with phase transformation and a flow heat exchanger, in accordance with the invention, at least one surface of the heat accumulator is covered with selective light-absorbing material, elements are installed in the heat accumulator that conduct thermal energy from a selective light-absorbing coating into a substance with a phase transformation, and from it into a liquid of a flowing heat exchanger, and which are flow elements heat exchanger.
В иных конкретных формах выполнения в качестве вещества с фазовым превращением использована эвтектическая смесь.In other specific embodiments, a eutectic mixture is used as a substance with a phase transformation.
В качестве эвтектической смеси использован гель на основе гидрата ацетата натрия.A gel based on sodium acetate hydrate was used as a eutectic mixture.
В качестве элементов проточного теплообменника использованы соединенные в пакет ребра, выполненные из теплопроводного материала.As elements of a flow-through heat exchanger, fins connected in a package made of heat-conducting material are used.
Между совокупностью существенных признаков заявляемого изобретения и достигаемым техническим результатом существует следующая причинно-следственная связь.Between the totality of the essential features of the claimed invention and the achieved technical result there is the following causal relationship.
Использование материала для поглощения солнечного света и изменение конструкции и расположения теплообменника, а именно:Using the material to absorb sunlight and changing the design and location of the heat exchanger, namely:
- покрытие по меньшей мере одной поверхности теплоаккумулятора селективным светопоглощающим материалом,- coating at least one surface of the heat accumulator with selective light-absorbing material,
- установка в теплоаккумуляторе элементов, которые проводят тепловую энергию от селективного светопоглощающего покрытия в вещество с фазовым превращением, а от него - в жидкость проточного теплообменника, и которые являются элементами проточного теплообменника, в совокупности с известными признаками заявляемого изобретения обеспечивает, во-первых, высокую степень поглощения солнечного света поверхностью теплоаккумулятора и, соответственно, увеличение количества тепла, которое передается веществу с фазовым превращением за счет кондуктивной теплопередачи, во-вторых, повышение конвективного теплообмена между теплоаккумулятором и элементами проточного теплообменника. В результате достигается уменьшение потерь тепла при его аккумулировании и нагревании жидкости, что обусловливает повышение эффективности использования солнечной энергии.- installation in the heat accumulator of elements that conduct thermal energy from a selective light-absorbing coating to a substance with a phase transformation, and from it to a liquid flow heat exchanger, and which are elements of a flow heat exchanger, in combination with the known features of the claimed invention provides, firstly, high the degree of absorption of sunlight by the surface of the heat accumulator and, accordingly, an increase in the amount of heat that is transferred to a substance with a phase transformation due to cond su- heat, secondly, increase the convective heat transfer between the accumulator tank and the flow of the heat exchanger elements. The result is a reduction in heat loss during its accumulation and heating of the liquid, which leads to an increase in the efficiency of use solar power.
Использование в качестве вещества с фазовым превращением эвтектической смеси, например геля на основе гидрата ацетата натрия, обеспечивает снижение энергии плавления вещества с фазовым превращением за счет того, что температура плавления твердой эвтектической смеси всегда меньше температуры плавления смеси любого другого состава, что также способствует уменьшению потерь тепла.The use of a eutectic mixture as a phase-conversion substance, for example, a gel based on sodium acetate hydrate, provides a decrease in the melting energy of a phase-conversion substance due to the fact that the melting temperature of a solid eutectic mixture is always lower than the melting temperature of a mixture of any other composition, which also helps to reduce losses heat.
Краткое описание чертежей Сущность предложенного изобретения поясняется чертежами, где на фиг. 1 изображен общий вид проточного гелиоколлектора; на фиг. 2 - его фронтальный разрез.BRIEF DESCRIPTION OF DRAWINGS The essence of the proposed invention is illustrated by drawings, where in FIG. 1 shows a General view of a flowing solar collector; in FIG. 2 - its frontal section.
Проточный гелиоколлектор (фиг. 1, 2) содержит термоизолированный корпус 1 со светопрозрачным ограждением 2. Внутри корпуса 1 размещен теплоаккумулятор 3 с наполнителем в виде вещества с фазовым превращением - эвтектической смеси. Это может быть гель на основе гидрата ацетата натрия. Теплоаккумулятор 3 обеспечен селективным светопоглощающим покрытием 4 и проточным теплообменником 5, по которому по мере надобности протекает нагреваемая вода. Покрытие 4 выполнено из материала с высоким коэффициентом поглощения и низким коэффициентом отражения, например из черненой меди, а теплообменник 5 размещен внутри теплоаккумулятора 3 и имеет проточную трубу 6 и соединенные в пакет ребра 7, выполненные из теплопроводного материала, например металла. Вода по трубе 6 протекает только тогда, когда она нужна потребителю.The flowing solar collector (Fig. 1, 2) contains a thermally insulated housing 1 with a translucent fence 2. Inside the housing 1 there is a heat accumulator 3 with a filler in the form of a substance with a phase transformation - a eutectic mixture. It can be a gel based on sodium acetate hydrate. The heat accumulator 3 is provided with a selective light-absorbing coating 4 and a flow-through heat exchanger 5, through which heated water flows as needed. The coating 4 is made of a material with a high absorption coefficient and low reflection coefficient, for example, from blackened copper, and the heat exchanger 5 is placed inside the heat accumulator 3 and has a flow pipe 6 and fins 7 made of a heat-conducting material, such as metal, connected in a package. Water flows through the pipe 6 only when the consumer needs it.
Лучший вариант осуществления изобретения Солнечное излучение сквозь светопрозрачное ограждение 2 попадает на селективное покрытие 4 и поглощается им, передавая тепло ребрам 7 теплообменника 5 и непосредственно в вещество теплоаккумулятора 3. Эвтектическая смесь быстро нагревается от тепла, передаваемого ребрами 7, ее температура, дойдя до точки плавления, стабилизируется, поскольку теплота плавления намного больше теплоты, необходимой для нагревания эвтектической смеси. Теплота, выделяемая при плавлении, нагревает теплообменник 5 и воду, которая по нему протекает. Это позволяет потребителям пользоваться горячей водой, не ожидая полного заряда теплоаккумулятора 3. Процесс заряда- разряда теплоаккумулятора происходит таким образом - быстрый набор температуры и ее стабилизация в процессе заряда и, наоборот, длинная плоская фаза температуры разряда, который не нуждается в дополнительном регулировании или стабилизации. Разряд теплоаккумулятора 3 характеризуется двумя фазами: первый разряд - переохлаждение смеси с отдачей тепла потребителю, второй разряд - перекристаллизация эвтектической смеси в момент, нужный потребителю. BEST MODE FOR CARRYING OUT THE INVENTION Solar radiation through a translucent fence 2 falls on a selective coating 4 and is absorbed by it, transferring heat the fins 7 of the heat exchanger 5 and directly into the substance of the heat accumulator 3. The eutectic mixture quickly heats up from the heat transferred by the fins 7, its temperature, reaching the melting point, stabilizes, since the heat of fusion is much more than the heat required to heat the eutectic mixture. The heat released during melting heats the heat exchanger 5 and the water that flows through it. This allows consumers to use hot water without waiting for a full charge of the heat accumulator 3. The process of charge-discharge of the heat accumulator occurs in this way - a quick set of temperature and its stabilization during the charge and, conversely, a long flat phase of the discharge temperature, which does not need additional regulation or stabilization . The discharge of the heat accumulator 3 is characterized by two phases: the first discharge is the supercooling of the mixture with heat transfer to the consumer, the second discharge is the recrystallization of the eutectic mixture at the moment that the consumer needs.

Claims

ФОРМУЛА ИЗОБРЕТЕНИЯ CLAIM
1. Проточный гелиоколлектор, содержащий теплоизоляционный корпус (1), светопрозрачное ограждение (2), теплоаккумулятор (3) в виде вещества с фазовым превращением и проточный теплообменник (5), отличающийся тем, что по меньшей мере одна поверхность теплоаккумулятора (3) покрыта селективным светопоглощающим материалом (4), в теплоаккумуляторе (3) установлены элементы (7), которые проводят тепловую энергию от селективного светопоглощающего покрытия (4) в вещество с фазовым превращением, а от него - в жидкость проточного теплообменника (5), и которые являются элементами проточного теплообменника.1. A flow-through solar collector comprising a heat-insulating casing (1), a translucent enclosure (2), a heat accumulator (3) in the form of a substance with phase transformation, and a flow heat exchanger (5), characterized in that at least one surface of the heat accumulator (3) is coated with a selective light-absorbing material (4), elements (7) are installed in the heat accumulator (3) that conduct thermal energy from the selective light-absorbing coating (4) to a substance with phase transformation, and from it to the liquid of a flow heat exchanger (5), and which are are elements of the flowing heat exchanger.
2. Гелиоколлектор по п. 1, отличающийся тем, что в качестве вещества с фазовым преобразованием использована эвтектическая смесь.2. The solar collector according to claim 1, characterized in that a eutectic mixture is used as a substance with phase transformation.
3. Гелиоколлектор по п. 2, отличающийся тем, что в качестве эвтектической смеси использован гель на основе гидрата ацетата натрия.3. The solar collector according to claim 2, characterized in that a gel based on sodium acetate hydrate is used as the eutectic mixture.
4. Гелиоколлектор по любому из пп. 1 - 3, отличающийся тем, что в качестве элементов (7) проточного теплообменника использованы соединенные в пакет ребра, выполненные из теплопроводного материала. 4. The solar collector according to any one of paragraphs. 1 - 3, characterized in that as elements (7) of the flow-through heat exchanger, fins connected in a package made of heat-conducting material are used.
PCT/UA2009/000028 2009-06-04 2009-06-30 Flow solar collector WO2010140993A1 (en)

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