ENERGÍA SOLAR DE BAJA TEMPERATURA

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Resultados 37 resultados LastUpdate Última actualización 28/05/2020 [00:36:00] pdf PDF xls XLS

Solicitudes publicadas en los últimos 45 días / Applications published in the last 45 days



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PROCESS AND JOINING DEVICE FOR MOUNTING A SOLAR COLLECTOR

NºPublicación: EP3657093A1 27/05/2020

Solicitante:

BOSCH GMBH ROBERT [DE]

Resumen de: EP3657093A1

Die Erfindung geht aus von einem Verfahren zum Montieren eines Solarkollektors (1), wobei der Solarkollektor (1) einen Solarabsorber (300), eine transparente Abdeckung (100), einen Rahmen (200) sowie optional eine Rückwand (500) umfasst, wobei der Rahmen (200) mehrere Rahmenteile (201, 202) umfasst. Das erfindungsgemäße Verfahren umfasst folgende Schritte: (a), ein optionales Halten der optionalen Rückwand (500) in einer Position H1. (b), durchgeführt an zwei ersten Rahmenteilen (201), wobei jedes erste Rahmenteil (201) mindestens eine Rahmenöffnung (203), vorzugsweise zwei Rahmenöffnungen (203), aufweist: Einführen eines Montagedorns (410) in jede Rahmenöffnung (203) und Halten der ersten Rahmenteile (201) mittels der Montagedorne (410). (c), durchgeführt am Solarabsorber (300), wobei der Solarabsorber (300) mindestens zwei Absorberöffnungen (306), vorzugsweise vier Absorberöffnungen (306), aufweist: Einführen der selben Montagedorne (410) wie in Schritt (b) in die Absorberöffnungen (306) und Halten des Solarabsorbers (300) mittels der Montagedorne (410) in einer Position H2, insbesondere parallel vor der Rückwand (500). (d), Halten der Abdeckung (100) in einer Position H3 parallel vor dem Solarabsorber (300). (e), Schieben der ersten Rahmenteile (201) auf den Solarabsorber (300) und die Abdeckung (100) sowie optional auf die Rückwand (500).

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METHOD FOR MANUFACTURING A HEAT EXCHANGER MODULE WITH AT LEAST ONE FLUID CIRCULATION CIRCUIT

NºPublicación: EP3657113A1 27/05/2020

Solicitante:

COMMISSARIAT ENERGIE ATOMIQUE [FR]

Resumen de: EP3657113A1

L'invention concerne un procédé de réalisation d'un module d'échangeur de chaleur à au moins un circuit de fluide, qui combine une structure ayant des propriétés thermiques élevées du fait de la présence d'un ou plusieurs matériaux ayant de bonnes caractéristiques thermiques et l'utilisation d'un matériau avec de bonnes propriétés mécaniques pour les éléments de structure du module d'échangeur de chaleur.:

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ACCUMULATOR SYSTEM FOR EVACUATED TUBES AND METHOD FOR FUSING, MELTING AND EVACUATION

NºPublicación: WO2020099577A1 22/05/2020

Solicitante:

LUXENHOFER RALF [DE]

Resumen de: WO2020099577A1

An accumulator system for evacuated tubes includes a vacuum tube seal having a glass lid (402, 452) wherein a Kovar sleeve (410) is vacuum-welded on a copper tube (406), passes through the glass lid (402, 452). A seal vacuum-tightly seals the glass to metal connection after a vacuum on an enclosed gas or gas mixture is drawn in the glass tube (404) to a pressure between 10-5 and 10-8 bar. The seal is a Kovar sleeve (410), which is welded to a lead glass (412), which is fused to the glass tube (404). This arrangement allows the copper tube (406) to be welded to the Kovar sleeve (410) to ensure a vacuum-tight connection.

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MODULAR, PASSIVE SOLAR GREENHOUSE STRUCTURE HAVING HEXAGON PLACEMENT MADE OF GLASS

NºPublicación: WO2020101626A2 22/05/2020

Solicitante:

OEZBAY GUERSEL [TR]

Resumen de: WO2020101626A2

The invention is related to a passive greenhouse structure that is formed of greenhouse modules (1) which can be modularly assembled and which has a horizontal section that is in hexagon form. The dimensions of the greenhouse structure can be extended or decremented by assembling a plurality of greenhouse modules (1) and by disassembling previously assembled modules.

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Cafetera portátil

NºPublicación: ES2762301A1 22/05/2020

Solicitante:

UNIV MADRID POLITECNICA [ES]

DEHUMIDIFICATION/EVAPORATIVE COOLING-BASED 100% OUTDOOR AIR CONDITIONING SYSTEM AND CONTROLLING METHOD

NºPublicación: JP2020514653A 21/05/2020

Solicitante:

アイユーシーエフ−エイチワイユー(インダストリー−ユニバーシティーコーオペレイションファウンデーションハンヤンユニバーシティー)

US_2020018500_A1

Resumen de: WO2018124709A1

A dehumidification/evaporative cooling-based 100% outdoor air conditioning system, according to one embodiment of the present invention, is an air conditioning system which changes the humidity, temperature, and enthalpy of outdoor air provided from an outdoor air suction port so as to provide changed first air to an air conditioning space or exhaust second air staying in the air conditioning space from the air conditioning space to an exhaust port, the system comprising: a pipe module for providing movement paths of the outdoor air, the first air, and the second air; a humidity adjustment part, which is disposed on the pipe module, for adjusting the humidity of the outdoor air; a temperature adjustment part, which is disposed on the pipe module, for adjusting the temperature, humidity, and enthalpy of supplied air such that the supplied air becomes the first air; a path setting part, which is disposed on the pipe module, for changing the movement paths of the outdoor air, the first air, and the second air; and a controller for determining, on the basis of first information on the humidity, temperature, and enthalpy of the outdoor air, a movement path of air from the outdoor air suction port to the air conditioning space or from the air conditioning space to the exhaust port, and controlling the path setting part to move the air along the determined movement path.

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SYSTEM FOR STORING AND RETRIEVING THERMAL ENERGY

NºPublicación: US2020158379A1 21/05/2020

Solicitante:

NMBU [NO]

CA_3031634_A1

Resumen de: US2020158379A1

The present invention relates to devices and systems for collecting and storage of solar energy, wherein the system for storing and retrieving captured temperature based energy comprising: one or more thermal collectors (5, 60), an energy carrier (29), a piping system (3, 7, 34, 35, 36), pumping device for controlling the flow of the energy carrier (29), and one or more ground thermal storage systems (30).

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LIGHT-CONTROLLED SPLIT-TYPE NON-PRESSURE-BEARING SOLAR WATER HEATING APPARATUS

NºPublicación: WO2020093248A1 14/05/2020

Solicitante:

XI JINMING [CN]

Resumen de: WO2020093248A1

A light-controlled split-type non-pressure-bearing solar water heating apparatus comprises a water container (10), a heat collector (20), and a microcomputer control device (30). The water container (10) comprises a housing and an inner container. A thermal insulation layer (15) is provided between the housing and the inner container. A first water inlet (13) and a first water outlet (12) are provided on a side wall of the water container (10). The first water inlet (13) is provided in a position higher than the first water outlet (12). The heat collector (20) comprises a second water inlet (21) and a second water outlet (22). The first water outlet (12) communicates with the second water inlet (21) via a first pipeline (61), and the second water outlet (22) communicates with the first water inlet (13) via a second pipeline (62). A check valve (40), a circulation pump (34), and a first solenoid valve (35) are sequentially provided on the first pipeline (61). The circulation pump (34) is connected to the microcomputer control device (30). The first solenoid valve (35) is connected to the microcomputer control device (30). A light intensity sensor (31) is provided on the heat collector (20). The light intensity sensor (31) is connected to the microcomputer control device (30). In the water heating apparatus, light intensity and duration are used to automatically control non-pressurized circulation and backflow of a water flow, thereby resolving the issue in which an integrated

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Feed storage tank identify checking feed quantity

NºPublicación: KR20200051249A 13/05/2020

Solicitante:

주식회사다운

Resumen de: KR20200051249A

본 발명은 사료량 확인이 가능한 사료저장탱크에 관한 것으로, 사료저장탱크의 투입공을 뚜껑으로 마감하되, 토출공을 개폐밸브로 마감하고, 뚜껑 내측 상면에 레이저신호를 출력 및 입력받는 사료량검사기를 설치하며, 사료저장탱크 외면에 제어부를 설치하여, 사료량검사기를 정해진 각도 연속 회전시키되, 이 사료량검사기에서 출력되는 레이저신호가 정해진 지점의 사료 표면에 반사되어 사료량검사기로 입력되도록 함으로써, 제어부가 사료량검사기로 입력된 복수 지점의 사료 표면 높이 값을 산출하여, 사료저장탱크 내에 수용된 사료의 량을 확인한다. 본 발명에 따르면, 사료량검사기에서 출력된 레이저신호가 정해진 지점의 사료 표면에 반사된 후 사료량검사기로 입력되어, 이 복수 지점의 사료 표면 높이 값을 산출하여 사료저장탱크 내의 정확한 사료량을 확인할 수 있고, 정해진 시간차를 두고 연속적으로 사료저장탱크 내의 사료량을 확인하여 사료 공급시기 및 사료공급량을 조절할 수 있으며, 특히, 사료저장탱크 내의 사료량을 수시로 확인하여, 사료저장탱크 내의 사료가 소진될 우려가 없음과 동시에 가축에게 항상 사료를 공급할 수 있도록 유지되어, 제품의 신뢰성이 향상되는 장점이 있다.

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METHOD FOR PRODUCING A ROAD SURFACE COMPRISING A HEAT EXCHANGER DEVICE

NºPublicación: US2020141068A1 07/05/2020

Solicitante:

EUROVIA [FR]

CA_3065902_A1

Resumen de: WO2018224781A1

A method for producing a road surface comprising at least one pipe (3) of a heat exchanger device, comprising the following steps: a) digging out a layer (6) in order to create grooves (1) proceeding in the same direction and strips (2) connecting the grooves pairwise; then, b) laying the pipe with crush resistance of more than 2000 N/m at 100°C into the previously created troughs; then, c) filling the free space left by the pipe in the grooves with a hydrocarbon-based coating (4) based on: - a hydrocarbon-based binder; - at least 90% by weight of a granular fraction, the elements of which have dimensions of less than 10 mm, comprising from 30% to 60% by weight of sand; d) applying a surface layer for a road surface.

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SEASONAL HEAT STORAGE SYSTEM OF SOLAR THERMAL

NºPublicación: KR20200047071A 07/05/2020

Solicitante:

인하대학교산학협력단

Resumen de: KR20200047071A

본 발명에 따른 태양열 계간축열조 시스템은 태양으로부터 복사에너지를 흡수하여 열에너지로 변환하는 집열부; 내부공간에 물이 수용되고, 상기 집열부와 연결되어 상기 집열부에서 변환된 열에너지를 전달받아 상기 물에 축열시키고, 내부에 상변화물질이 충진된 복수개의 축열파이프가 구비되는 탱크형 축열부; 및 상기 탱크형 축열부와 연결되어, 상기 축열부에서 축열된 열에너지를 공급받아 사용하는 열수요부를 포함한다. 본 발명에 따른 태양열 계간축열조 시스템은 상변화 물질이 충진된 복수개의 축열파이프가 탱크형 축열부의 내부공간에 배치되어, 집열부에서 전달된 열에너지가 축열프레임의 물을 이용하여 1차적으로 축열되고, 물의 온도가 증가함에 따라 축열파이프의 상변화물질에 2차적으로 축열됨으로써, 탱크형 축열부의 규모를 감소시키고, 축열효율을 향상시켜 경제성을 확보할 수 있다.

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空調換気装置

NºPublicación: JP2020070998A 07/05/2020

Solicitante:

株式会社長府製作所OMソーラー株式会社

Resumen de: JP2020070998A

【課題】24時間換気で求められる換気量を確保しつつ、複数の室内の空調が可能な空調換気装置を提供する。【解決手段】室内Rを換気しつつ、温度調整した空気を室内Rに供給する空調換気装置10であって、筺体12、筺体12内に外気を取り込む外気取込み部24、47、それぞれ室内Rの空気を筺体12内に取り込む第1、第2の内気取込み部38、23、屋外へ排出される空気が筺体12外に送り出される排出部40、41、及び、室内Rに供給する温度調整された空気を筺体12外に吹き出す吹出部25、26、27を備え、外気取込み部24、47及び第1の内気取込み部38から筺体12内に入る空気量と排出部40、41及び吹出部25、26、27から筺体12外に出る空気量を計測する流出入量検出手段56の計測値を基に、第2の内気取込み部23を通って筺体12内に流入する室内Rの空気量を調整する流入量調節手段19の動作を制御する。【選択図】図2

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遮熱兼熱交換装置

NºPublicación: JP2020070993A 07/05/2020

Solicitante:

前田俊明

Resumen de: JP2020070993A

【課題】設置面に作用する荷重を軽減させ遮熱に優れる遮熱兼熱交換装置の提供。【解決手段】遮熱兼熱交換装置2は、屋根14の遮熱と熱交換とをする。この遮熱兼熱交換装置2は、屋根14に並べられて取り付けられる複数のユニット4と、屋根14との間に空間S1を形成した状態でユニット4を屋根14に取り付ける取付具6とを備えている。ユニット4は、熱交換をする流体が流れるユニット本体16と、隣合う他のユニット4との間の屋根14を覆う庇18と、を備えている。好ましくは、庇18が他のユニット4と上下方向において空間S3を形成して重なっている。庇18と他のユニット4との間の空間S3と、ユニット4と屋根14との間に形成された空間S1とは、連通している。【選択図】図1

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給湯装置

NºPublicación: JP2020070967A 07/05/2020

Solicitante:

株式会社長府製作所

Resumen de: JP2020070967A

【課題】従来の太陽熱熱源とヒートポンプ熱源を併用する給湯装置においては、太陽熱熱源とヒートポンプ熱源が同時に一つの貯湯槽を加熱する場合には、太陽熱熱源とヒートポンプ熱源両方の熱交換率が低下するという問題があった。【解決手段】給湯装置1は、太陽熱熱源用の熱交換器21が設けられた第一貯湯槽20と、第二貯湯槽40と、第一貯湯槽20に給水されて貯留している水を、第一貯湯槽20をヒートポンプ熱源機30との間で、ヒートポンプ循環ポンプ33で循環させる第一循環回路と、第二貯湯槽40に給水されて貯留している水を、第二貯湯槽40をヒートポンプ熱源機30との間で、ヒートポンプ循環ポンプ33で循環させる第二循環回路と、前記第一循環回路又は前記第二循環回路の何れか一方のみを形成させる選択手段34と、を備えている。【選択図】図1

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SEASONAL HEAT STORAGE SYSTEM OF SOLAR THERMAL

NºPublicación: KR20200047072A 07/05/2020

Solicitante:

인하대학교산학협력단

Resumen de: KR20200047072A

본 발명에 따른 태양열 계간축열조 시스템은 태양으로부터 복사에너지를 흡수하여 열에너지로 변환하는 집열부; 내부공간에 물이 수용되고 상기 집열부와 연결되어 상기 집열부에서 변환된 열에너지를 전달받아 상기 물에 축열시키는 탱크축열체와, 지중에 매설되고, 상기 집열부 및 상기 탱크축열체와 연결되어 상기 집열부에서 변환된 열에너지를 전달받아 축열시키며 상기 탱크축열체의 외측둘레를 따라 배치되는 복수개의 수직관을 구비하는 보어홀축열체을 포함하는 축열부; 및 상기 축열부와 연결되어, 상기 축열부에서 축열된 열에너지를 공급받아 사용하는 열수요부를 포함한다. 본 발명에 따른 태양열 계간축열조 시스템은 탱크축열체와 보어홀축열체를 동시에 구비함으로써, 탱크축열체의 내부공간에 충진된 물을 이용하여 축열이 가능하고, 보어홀축열체를 이용하여 지중에 축열이 가능하여 축열효율이 향상될 수 있다. 또한 보어홀축열체의 안정화 기간동안 탱크축열체에 축열함으로써, 보어홀축열체의 안정화 기간에도 열수요부에 열에너지를 공급이 가능하여 사용효율이 향상될 수 있다.

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CYLINDRICAL SYSTEM FOR COLLECTING SOLAR ENERGY

NºPublicación: RO134055A2 30/04/2020

Solicitante:

TERMOSOLAR AKTIV S R L [RO]

Resumen de: RO134055A2

The invention relates to a cylindrical system for collecting solar energy and for converting it into thermal energy. According to the invention, the system for collecting solar energy comprises a median tube (1), on which a black flexible tube (2) made of a polymer, is spirally wound, with the turns next to one another, through which the heat carrier circulates, a transparent tube (3) being mounted coaxially with the median tube (1), having, at the ends, two disk-like closing elements (4 and 4'), which enable the median tube (1) to be fixed in the center of the transparent cylindrical tube (3), thus forming an even layer of thermal insulation, the interior space being vacuumed, and, on the two closing elements (4 and 4'), there being some connecting pieces (5 and 5') on the interior side of which the two ends of the flexible tube (2), wound on the median tube (1), are connected, while, at the exterior, these connecting pieces (5 and 5') enable the connection to a plant for heating or for producing hot water.

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EVACUATED TUBE SOLAR COLLECTOR WITH ROTARY ABSORBERS

NºPublicación: RS20181287A1 30/04/2020

Solicitante:

RUDIC VRANIC MARINKO [RS]

Resumen de: RS20181287A1

A tubular vacuum solar collector receiver with rotary tubes consisting of a pipe register (A), an absorber assembly (B) and a transmission mechanism (C). The absorber assembly (B) is mounted on the tubular register so that it can rotate around the tube register (G) through which the working fluid flows. In this way, the rotation of the absorption surface for a full circle around the axis of the register tube (G) is possible without the use of a sealant. The rotation of the absorption surface is achieved by a worm drive with a common spindle (C1), worm wheels (C2), and a spindle bearing (C3).

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METHOD OF ACCUMULATING THERMAL ENERGY FROM DEEP EARTH

NºPublicación: US2020132340A1 30/04/2020

Solicitante:

GORBUNOV ALEXEY [US]
GORBUNOV OLEKSANDR [UA]
GORBUNOV VALERIY IVANOVICH [US]

METHOD FOR DETECTING AND LOCATING A FAULT IN A THERMAL SOLAR FIELD

NºPublicación: EP3643986A1 29/04/2020

Solicitante:

COMMISSARIAT ENERGIE ATOMIQUE [FR]

FR_3087523_A1

Resumen de: FR3087523A1

L'invention concerne un procédé de détection et de localisation d'un défaut dans un champ solaire thermique (100) comportant une pluralité de conduites (121-125) dans lesquelles circule un fluide et un ensemble de capteurs solaires (110) agencés en rangées (111-115) et chauffant le fluide, ledit procédé comportant les opérations suivantes : - stagnation (210) du fluide à l'intérieur de chaque capteur solaire (110) pendant une durée prédéterminée, la pompe d'alimentation (140) étant à l'arrêt, - à la fin de la durée prédéterminée, démarrage (230) de la pompe d'alimentation (140) à un premier débit de sorte que le fluide circule jusqu'au capteur de température (130), - enregistrement (240), sous forme de courbes, des variations de température du fluide mesurées par le capteur de température (130), et - analyse (250) des courbes obtenues et détermination (260) de l'existence d'un défaut et de sa localisation.

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AIR COLLECTOR AND METHOD FOR PROVIDING AN AIR COLLECTOR WITH A HEAT RECOVERY UNIT

NºPublicación: EP3642539A1 29/04/2020

Solicitante:

UDLEJER HANS JOERGEN CHRISTENSEN [DK]

WO_2018233791_PA

Resumen de: WO2018233791A1

The present invention relates to an air/air heat exchanger (11) which is either located as an integral part of an air collector or a independent module added to an existing air collector. Heat exchanger (11) is preferably located so that intake of hot exhaust air (13) is as close as possible to outlet of heated fresh air (16). The removal of old exhaust air (9) is performed in a way so that this air is not sucked back into the air collector. The heating of the colder intake air (6) takes place in two thermally separate processes, namely first using heat exchanger (11) and then by flow through the solar-heated absorber (7). The direction of movement of the air (from 6 to 5) creates the thermal separation.

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HYBRID TYPE COLLECTING SOLAR ENERGY FOR HOT WATER

NºPublicación: KR20200043093A 27/04/2020

Solicitante:

UNIV DONG EUI IND ACAD COOP FOUND [KR]

Resumen de: KR20200043093A

본 발명은 하이브리드형 태양열 집열 장치에 관한 것으로, 제1 집열기 및 제2 집열기의 위치를 상, 하단에 위치하여 가열된 공기의 부력에 의한 상승 원리를 이용하여 제2 집열기로의 이동을 용이하게 하여, 에너지 손실을 최소화하며, 제1 집열기 및 제2 집열기 내의 집열판에 단열 코팅층을 형성하여 집열 효율을 높일 수 있다. 또한, 집열기에 의해 가열된 공기가 부력에 의해 상승하는 점을 이용하여, 이동관에 소형 발전기를 위치시켜 프로펠러를 회전시켜 전기 에너지를 함께 생산할 수 있는 하이브리드형 태양열 집열 장치를 제공하는 것이다.

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METHOD FOR DETECTING AND LOCATING A FAULT IN A THERMAL SOLAR FIELD

NºPublicación: FR3087523A1 24/04/2020

Solicitante:

COMMISSARIAT ENERGIE ATOMIQUE [FR]

EP_3643986_A1

Resumen de: FR3087523A1

L'invention concerne un procédé de détection et de localisation d'un défaut dans un champ solaire thermique (100) comportant une pluralité de conduites (121-125) dans lesquelles circule un fluide et un ensemble de capteurs solaires (110) agencés en rangées (111-115) et chauffant le fluide, ledit procédé comportant les opérations suivantes : - stagnation (210) du fluide à l'intérieur de chaque capteur solaire (110) pendant une durée prédéterminée, la pompe d'alimentation (140) étant à l'arrêt, - à la fin de la durée prédéterminée, démarrage (230) de la pompe d'alimentation (140) à un premier débit de sorte que le fluide circule jusqu'au capteur de température (130), - enregistrement (240), sous forme de courbes, des variations de température du fluide mesurées par le capteur de température (130), et - analyse (250) des courbes obtenues et détermination (260) de l'existence d'un défaut et de sa localisation.

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ソーラー発電給湯システム

NºPublicación: JP2020063890A 23/04/2020

Solicitante:

株式会社長谷工コーポレーション

Resumen de: JP2020063890A

【課題】光発電パネルを冷却して発電効率を高めることができ、かつ補助熱源なしに高温の温水を貯湯タンクに溜めることができるソーラー発電給湯システムを提供する。【解決手段】光発電パネル10、集熱マット20、ヒートポンプ30、貯湯タンク40、低温循環ライン50、高温循環ライン60、給水ライン70、及び貯湯ライン80を備える。集熱マット20は、光発電パネル10の裏面に取付けられ、給水1と循環水2が流れる配管22を有する。ヒートポンプ30は、凝縮器34及び蒸発器38を有し、熱媒体4を循環する。低温循環ライン50は、集熱マット20と蒸発器38との間で循環水2を循環し、集熱マット20を冷却する。高温循環ライン60は、貯湯タンク40と凝縮器34との間で貯湯3を循環し、貯湯3を加熱する。貯湯ライン80は、集熱マット20で加熱された給水1を貯湯タンク40又は高温循環ライン60に供給する。【選択図】図2

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太陽光選択吸収体

NºPublicación: JP2020063891A 23/04/2020

Solicitante:

大阪瓦斯株式会社

Resumen de: JP2020063891A

【課題】太陽光を効率良く吸収しながらも、大気の存在する環境下で長時間に亘って使用できる太陽光選択吸収体を提供する。【解決手段】太陽光選択吸収層Nが基板K上に積層され、太陽光選択吸収層Nが、透明酸化物にて形成される共鳴用透明酸化物層Rを太陽光選択吸収層Nと基板Kとの積層の方向に沿って並ぶ白金層Pの間に位置させるMIM積層部Mを備える吸収制御部Na、及び、透明酸化物にて形成される入射用透明酸化物層Nbの順に基板Kに近い側に位置させる形態で、吸収制御部Na及び入射用透明酸化物層Nbを積層した状態に構成され、共鳴用透明酸化物層Rの厚さが、4μm以下の波長を共鳴波長とする厚さである。【選択図】図1

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RADIATION COLLECTOR AND METHOD OF MANUFACTURE THEREOF

Nº publicación: EP3638959A1 22/04/2020

Solicitante:

SOLIGHT LTD [IL]

CN_110892192_A

Resumen de: WO2018229742A1

Non-imaging radiation collecting and concentrating devices, and assemblies, are disclosed. The non-imaging radiation collecting and concentrating devices comprise an entrance aperture for receiving incoming radiation, an exit aperture located opposite to the entrance aperture for outputting concentrated radiation, and one or more concaved reflectors arranged between the entrance and exit apertures. The concaved reflectors define an acceptance angle of the device relative to an optical axis thereof and configured such that their optical focuses are located between edges of the exit aperture and the optical axis, thereby substantially preventing escape of the incoming radiation received in the entrance aperture within the acceptance angle and providing substantial uniform radiation collection at the exit aperture of the device.

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