KR20210066464A - Parabolic trough concentrator type solar thermal energy system having concentrated photovoltaic - Google Patents

Parabolic trough concentrator type solar thermal energy system having concentrated photovoltaic Download PDF

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KR20210066464A
KR20210066464A KR1020190155725A KR20190155725A KR20210066464A KR 20210066464 A KR20210066464 A KR 20210066464A KR 1020190155725 A KR1020190155725 A KR 1020190155725A KR 20190155725 A KR20190155725 A KR 20190155725A KR 20210066464 A KR20210066464 A KR 20210066464A
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collecting tube
heat collecting
heat
solar cell
solar thermal
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KR1020190155725A
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Korean (ko)
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KR102358978B1 (en
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조장현
최동호
이한출
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선다코리아주식회사
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    • 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
    • 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
    • F24S23/30—Arrangements for concentrating solar-rays for solar heat collectors with lenses
    • F24S23/31—Arrangements for concentrating solar-rays for solar heat collectors with lenses having discontinuous faces, e.g. Fresnel lenses
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
    • 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
    • F24S2020/10—Solar modules layout; Modular arrangements
    • F24S2020/17—Arrangements of solar thermal modules combined with solar PV modules
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Abstract

The present invention relates to a PCT-type solar thermal system, and more specifically, to a PTC-type solar thermal system that collects the light reflected by a reflector to a heat collecting tube and collects the light, which is blocked by the heat collecting tube not to reach the reflector, through a Fresnel lens to a concentrator photovoltaic cell so as to use both sunlight and solar heat, thereby improving energy efficiency.

Description

집광형 태양전지가 결합된 PTC형 태양열 시스템{Parabolic trough concentrator type solar thermal energy system having concentrated photovoltaic}PTC type solar thermal system combined with a concentrating solar cell {Parabolic trough concentrator type solar thermal energy system having concentrated photovoltaic}

본 발명은 PCT형 태양열 시스템에 관한 것으로, 보다 구체적으로는 반사판에 의해 반사되는 광은 집열관을 집광시키고, 상기 집열관에 가로막혀 상기 반사판으로 조사되지 못하는 광은 프레넬 렌즈를 통해 집광형 태양전지에 집광해줌으로써 태양광 및 태양열을 함께 이용하여 에너지 효율을 향상시킬 수 있는 PTC형 태양열 시스템에 관한 것이다.The present invention relates to a PCT-type solar thermal system, and more specifically, light reflected by a reflector is focused on a heat collecting tube, and light that is blocked by the heat collecting tube and cannot be irradiated to the reflector is collected through a Fresnel lens. It relates to a PTC type solar thermal system capable of improving energy efficiency by using both sunlight and solar heat by condensing the light on a cell.

태양열 시스템은 광전효과를 이용하는 태양광 시스템과는 달리 태양열을 집광하여 열 매체를 가열한 후, 가열된 열 매체의 열을 이용하여 발전을 수행하는 장치이다.Unlike a solar system using the photoelectric effect, a solar thermal system is a device that collects solar heat to heat a thermal medium and then uses the heat of the heated thermal medium to generate electricity.

이 태양열 시스템은 태양열의 집광 여부에 따라 태양열을 집광하는 집광형과 비 집광형으로 구분된다.This solar thermal system is divided into a condensing type that collects solar heat and a non-concentrating type according to whether solar heat is condensed or not.

비 집광형은 평판형과 진공유리관형으로 구분되고, 집광형은 집광기(반사판)의 기하학적 구조에 따라 PTC(Parabolic Trough Concentrator)형, CPC(Compound Parabolic Concentrator), 포물선 접시형(Parabolic Dish) 등으로 구분된다.The non-condensing type is divided into a flat plate type and a vacuum glass tube type. are separated

집광형 중에서 중고온의 온도범위를 얻을 수 있고 1축이나 2축의 추적이 가능한 PTC형 집광기가 가장 바람직한데, 통상의 PTC형 집광기는 얇은 판 형태의 금속 반사판을 2차원 포물 형태의 곡률을 가지도록 벤딩하여 초점이 띠 형태를 이루게 되며, 이 초점축에 열 매체가 순환하는 집열관이 위치한다.Among the condensing types, a PTC type condenser that can obtain a high temperature range and can track one or two axes is the most preferable. By bending, the focal point is formed in a band shape, and a heat collecting tube through which a heat medium circulates is located on the focal axis.

한편, 상기 집광기는 태양의 고도와 방위각에 따라 각도가 변화하며, 초점축이 상기 집열관에 위치하도록 태양을 추적하는데, 정밀 추적을 하더라도 초점축이 집열관의 중심축에 위치하지 않는 경우가 발생하므로 집열관 주위에서 열손실이 발생하는 실정이다.On the other hand, the angle of the concentrator changes according to the altitude and azimuth of the sun, and the focal axis tracks the sun so that the focal axis is located on the heat collector, but even if precise tracking is performed, the focal axis is not located on the central axis of the heat collector. Therefore, heat loss occurs around the heat collecting tube.

1. 한국공개특허, 제10-2015-0086128호, '태양열 집광판 표면세척방법'1. Korean Patent Laid-Open Patent No. 10-2015-0086128, 'Solar heat collecting plate surface cleaning method' 2. 한국공개실용신안, 제20-2011-0003259호, '집광형 태양열온수기의 진공관흡수기'2. Korea Open Utility Model, No. 20-2011-0003259, 'Vacuum tube absorber of condensing solar water heater'

본 발명은 상술한 문제점을 해결하기 위해 안출된 것으로 본 발명의 목적은 반사판에 반사되어 집열관에 집열되지 않고 상기 집열관에 직접 조사되는 태양광을 집광형 태양전지를 통해 전기 에너지로 변환하여 획득함으로써 태양열 및 태양광을 함께 이용하여 에너지 효율을 향상시킬 수 있는 PTC형 태양열 시스템을 제공하는 것이다.The present invention has been devised to solve the above problems, and an object of the present invention is to convert sunlight directly irradiated to the heat collecting tube without being collected in the heat collecting tube by being reflected by a reflecting plate into electrical energy through a condensing solar cell. It is to provide a PTC type solar thermal system that can improve energy efficiency by using both solar heat and sunlight.

상기의 목적을 달성하기 위하여 본 발명은 내부에 열 매체가 흐르는 집열관과 일정한 곡률을 갖고 태양광을 반사하여 상기 집열관에 집광시킴으로써 상기 열 매체를 가열하는 반사판을 포함하는 PTC형 태양열 시스템으로서, 태양을 향하는 상기 집열관의 전방에는 상기 집열관으로 직접 조사되는 태양광을 수광하여 전기를 생산하는 집광형 태양전지(CPV:Concentrated Photovoltaic)가 구비되는 것을 특징으로 하는 PTC형 태양열 시스템을 제공한다.In order to achieve the above object, the present invention is a PTC-type solar thermal system comprising a heat collecting tube through which a heat medium flows therein, and a reflector for heating the heat medium by reflecting sunlight having a certain curvature and condensing it on the heat collecting tube, It provides a PTC type solar thermal system, characterized in that a Concentrated Photovoltaic (CPV) for generating electricity by receiving sunlight directly irradiated to the heat collecting tube is provided in front of the heat collecting tube facing the sun.

바람직한 실시예에 있어서, 상기 집광형 태양전지는 상기 집열관의 길이방향으로 길쭉한 형태를 가지며 세로방향 길이는 상기 집열관의 직경보다 작다.In a preferred embodiment, the light collecting solar cell has an elongated shape in the longitudinal direction of the heat collecting tube, and the longitudinal length is smaller than the diameter of the heat collecting tube.

바람직한 실시예에 있어서, 상기 집광형 태양전지의 전방에는 태양광을 상기 집광형 태양전지로 집광하기 위한 프레넬 렌즈(Fresnel Lens)가 구비되고, 상기 프레넬 렌즈는 상기 집열관의 길이방향으로 길쭉한 형태를 가지며 세로방향 길이는 상기 집열관의 직경보다 작고 상기 집광형 태양전지의 세로방향 길이보다 길다.In a preferred embodiment, a Fresnel lens for condensing sunlight to the condensing solar cell is provided in front of the condensing solar cell, and the Fresnel lens is elongated in the longitudinal direction of the heat collecting tube. It has a shape and the longitudinal length is smaller than the diameter of the heat collecting tube and longer than the longitudinal length of the light collecting solar cell.

본 발명은 다음과 같은 우수한 효과를 가진다.The present invention has the following excellent effects.

본 발명의 PTC형 태양열 시스템에 의하면 태양을 향하는 집열관의 전방에 프레넬 렌즈와 집광형 태양전지를 구비하여, 반사판에 반사되지 않고 상기 집열관에 직접 조사되는 태양광을 전기 에너지로 변환하여 획득할 수 있으므로 에너지 효율을 매우 향상시킬 수 있는 장점이 있다.According to the PTC type solar system of the present invention, a Fresnel lens and a condensing solar cell are provided in front of the heat collecting tube facing the sun, and the sunlight directly irradiated to the heat collecting tube without being reflected by the reflector is converted into electrical energy and obtained This has the advantage of greatly improving energy efficiency.

도 1은 본 발명의 일 실시예에 따른 PTC형 태양열 시스템을 보여주는 도면,
도 2는 본 발명의 일 실시예에 따른 PTC형 태양열 시스템의 프레넬 렌즈와 집광형 태양전지를 설명하기 위한 도면이다.1 is a view showing a PTC type solar thermal system according to an embodiment of the present invention;
2 is a view for explaining a Fresnel lens and a condensing type solar cell of a PTC type solar thermal system according to an embodiment of the present invention.

본 발명에서 사용되는 용어는 가능한 현재 널리 사용되는 일반적인 용어를 선택하였으나, 특정한 경우는 출원인이 임의로 선정한 용어도 있는데 이 경우에는 단순한 용어의 명칭이 아닌 발명의 상세한 설명 부분에 기재되거나 사용된 의미를 고려하여 그 의미가 파악되어야 할 것이다.As for the terms used in the present invention, general terms that are currently widely used are selected as possible, but in certain cases, there are also terms arbitrarily selected by the applicant. In this case, the meaning described or used in the detailed description of the invention rather than the name of the simple term is considered. So the meaning should be understood.

이하, 첨부한 도면에 도시된 바람직한 실시예들을 참조하여 본 발명의 기술적 구성을 상세하게 설명한다.Hereinafter, the technical configuration of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

그러나 본 발명은 여기서 설명되는 실시예에 한정되지 않고 다른 형태로 구체화될 수도 있다. 명세서 전체에 걸쳐 동일한 참조번호는 동일한 구성요소를 나타낸다.However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Like reference numerals refer to like elements throughout.

도 1은 본 발명의 일 실시예에 따른 PTC형 태양열 시스템을 보여주는 도면이고, 도 2는 본 발명의 일 실시예에 따른 PTC형 태양열 시스템의 프레넬 렌즈와 집광형 태양전지를 설명하기 위한 도면이다.1 is a view showing a PTC type solar thermal system according to an embodiment of the present invention, and FIG. 2 is a view for explaining a Fresnel lens and a condensing solar cell of the PTC type solar thermal system according to an embodiment of the present invention .

도 1 및 도 2를 참조하면, 본 발명의 일 실시예에 따른 PTC형 태양열 시스템(100)은 태양(10)으로부터 조사되는 태양광(s)을 집광하여 열 매체를 가열한 후, 가열된 열 매체를 이용하여 발전을 수행하거나 온수이용 및 실내 난방을 할 수 있는 장치이다.1 and 2 , the PTC type solar thermal system 100 according to an embodiment of the present invention collects sunlight s irradiated from the sun 10 to heat a thermal medium, and then heats the heated heat. It is a device that can generate electricity using a medium, use hot water, and heat the room.

또한, 상기 PTC형 태양열 시스템(100)은 태양열뿐만 아니라 태양광을 이용하여 추가적으로 전기를 생산하므로 에너지 효율을 증대시킬 수 있다.In addition, since the PTC-type solar thermal system 100 additionally generates electricity using not only solar heat but also sunlight, energy efficiency can be increased.

상기 PTC형 태양열 시스템(100)은 집열관(110), 반사판(120) 및 집광형 태양전지(130,CPV:Concentrated Photovoltaic)를 포함하며, 상기 집광형 태양전지(130)의 발전효율을 향상시키기 위해 프레넬 렌즈(140)를 더 포함할 수 있다.The PTC type solar system 100 includes a heat collecting tube 110 , a reflector 120 , and a concentrating solar cell 130 (CPV: Concentrated Photovoltaic) to improve the power generation efficiency of the concentrating solar cell 130 . For this, a Fresnel lens 140 may be further included.

상기 집열관(110)은 길쭉한 관형으로 내부에 열 매체가 흐르며, 상기 열 매체는 파이프(111)를 통해 열교환기를 순환한다.The heat collecting tube 110 has an elongated tubular shape, and a heat medium flows therein, and the heat medium circulates through the heat exchanger through the pipe 111 .

그러나 상기 열 매체는 순환하지 않고 상기 집열관(110) 내부에서 저장되며, 순환하는 다른 열 매체와 열 교환할 수 있다.However, the heat medium is not circulated, but is stored inside the heat collecting tube 110 and can exchange heat with other circulating heat medium.

또한, 상기 집열관(110)은 집열 효율이 높은 히트파이프 형태의 진공관 튜브로 구비되는 것이 바람직하다.In addition, the heat collecting tube 110 is preferably provided as a heat pipe type vacuum tube tube with high heat collection efficiency.

상기 반사판(120)은 일정한 곡률을 갖는 길쭉한 호형의 반사판으로 상기 집열관(110)을 전방에 두고 태양(10)을 바라보며 설치된다.The reflector 120 is an elongated arc-shaped reflector having a certain curvature, and is installed while facing the sun 10 with the heat collecting tube 110 in front.

또한, 상기 반사판(120)은 태양광(s)을 반사하여 상기 집열관(110)에 집중시키고 상기 집열관(110)의 열 매체를 가열한다.In addition, the reflector 120 reflects sunlight (s) to focus on the heat collecting tube 110 , and heats the heat medium of the heat collecting tube 110 .

또한, 상기 반사판(120)은 길쭉한 호형이므로 상기 집열관(110)의 길이방향으로 길쭉한 초점축을 가진다.In addition, since the reflector 120 has an elongated arc shape, it has an elongated focal axis in the longitudinal direction of the heat collecting tube 110 .

또한, 도시하지는 않았으나 상기 반사판(120)은 구동부재에 의해 회동할 수 있으며 태양의 고도변화에 따라 초점축의 위치를 가변하여, 초점축이 항상 상기 집열관(110)의 길이방향 중심에 위치하게 한다.In addition, although not shown, the reflector 120 can be rotated by a driving member and the position of the focal axis is changed according to the change of the altitude of the sun, so that the focal axis is always located at the longitudinal center of the heat collecting tube 110 . .

한편, 상기 태양광(s) 중 대부분은 상기 반사판(120)에 반사되어 반사광(s2)의 형태로 상기 집열관(110)에 집광되지만, 일부는 상기 집열관(110)에 가로막혀 상기 반사판(120)에 도달하지 못하고 직접광(s1)의 형태로 상기 집열관(110)에 조사된다.On the other hand, most of the sunlight (s) is reflected by the reflector 120 and condensed on the heat collecting tube 110 in the form of reflected light s2, but some of the sunlight (s) is blocked by the heat collecting tube 110 and the reflector ( 120) and is irradiated to the heat collecting tube 110 in the form of direct light s1.

즉, 상기 직접광(s1)은 상기 반사판(120)에 의해 태양복사 에너지로 변환되지 못하여 효율이 낮아진다.That is, since the direct light s1 is not converted into solar radiation energy by the reflector 120 , the efficiency is lowered.

상기 집광형 태양전지(130)는 상기 직접광(s1)을 수광하여 전기 에너지로 변환하여 획득하는 역할을 하며, 태양을 향하는 상기 집열관(110)의 전방에 설치된다.The concentrating solar cell 130 serves to receive the direct light s1 and convert it into electrical energy to obtain it, and is installed in front of the heat collecting tube 110 facing the sun.

또한, 상기 집광형 태양전지(130)는 상기 집열관(110)의 길이방향과 나란하게 길쭉한 형태를 가지며 설치된다.In addition, the light collecting solar cell 130 is installed to have an elongated shape in parallel with the longitudinal direction of the heat collecting tube 110 .

또한, 상기 집광형 태양전지(130)는 일반 태양전지보다 제작비용이 높고 집광에 추가적인 장치 등이 필요한 단점이 있으나 최근 발전효율이 25~30%(일반 태양전지의 경우 16~20%)까지 높아지면서 관심이 증대되고 있다.In addition, the concentrating solar cell 130 has a disadvantage in that the production cost is higher than that of a general solar cell and an additional device is required for light collection, but the recent generation efficiency is 25 to 30% (16 to 20% in the case of a general solar cell). Interest is growing as

또한, 상기 집광형 태양전지(130)의 세로방향 길이(높이)(h1)는 상기 집열관(110)의 직경(h2)보다 작은 것이 바람직하다.In addition, it is preferable that the vertical length (height) h1 of the light collecting solar cell 130 is smaller than the diameter h2 of the heat collecting tube 110 .

이는 태양광(s)이 최대한 상기 반사판(120)으로 조사되게 하여 반사광(s2)의 형태로 상기 집열관(110)에 집열되게 하고, 상기 집열관(110)에 의해 가로막히는 직접광(s1)만을 수광하여 전기를 생산하게 함으로써 에너지 효율을 증대시키기 위함이다.This allows sunlight s to be irradiated to the reflector 120 as much as possible to be collected in the heat collecting tube 110 in the form of reflected light s2 , and only direct light s1 blocked by the heat collecting tube 110 . This is to increase energy efficiency by generating electricity by receiving light.

또한, 상기 집광형 태양전지(130)의 전방에는 상기 직접광(s1)을 집광하여 상기 집광형 태양전지(130)로 전달해주는 프레넬 렌즈(140)가 구비되며, 상기 프레넬 렌즈(140) 역시 상기 집광형 태양전지(130)와 같이 상기 집열관(100)의 길이방향으로 길쭉하게 구비된다.In addition, a Fresnel lens 140 for condensing the direct light s1 and transmitting the direct light s1 to the light collecting solar cell 130 is provided in front of the condensing solar cell 130 , and the Fresnel lens 140 is also Like the condensing solar cell 130 , it is elongated in the longitudinal direction of the heat collecting tube 100 .

즉, 상기 프레넬 렌즈(130), 상기 집광형 태양전지(130) 및 상기 집열관(110)은 서로 나란하게 이격되어 순차로 배치된다.That is, the Fresnel lens 130 , the light collecting solar cell 130 , and the heat collecting tube 110 are sequentially spaced apart from each other and sequentially arranged.

또한, 상기 프레넬 렌즈(130)의 세로방향 길이(h3)는 상기 집열관(110)의 직경(h2)보다 작고 상기 집광형 태양전지(130)의 세로방향 길이(h2)보다 큰 것이 바람직하며, 이는 상기 반사판(120)으로 태양광(s)이 최대한 전달되게 하여 효율을 증대시키기 위함이다.In addition, it is preferable that the longitudinal length h3 of the Fresnel lens 130 is smaller than the diameter h2 of the heat collecting tube 110 and larger than the longitudinal length h2 of the light collecting solar cell 130 , , this is to increase the efficiency by maximally transmitting the sunlight s to the reflector 120 .

따라서, 본 발명의 일 실시예에 따른 PTC형 태양열 시스템(110)에 의하면, 반사판(120)에 반사된 태양복사 에너지에 의한 열뿐만 아니라 집열관(110)에 의해 가로막혀 반사판(120)으로 전달되지 않는 일부 태양광까지 이용하여 에너지를 생산할 수 있으므로 에너지 효율을 매우 높일 수 있는 장점이 있다.Therefore, according to the PTC type solar thermal system 110 according to an embodiment of the present invention, not only the heat due to the solar radiation energy reflected by the reflector 120 is blocked by the heat collecting tube 110 and transmitted to the reflector 120 . There is an advantage in that energy efficiency can be very high because energy can be produced by using even some sunlight that is not available.

이상에서 살펴본 바와 같이 본 발명은 바람직한 실시예를 들어 도시하고 설명하였으나, 상기한 실시예에 한정되지 아니하며 본 발명의 정신을 벗어나지 않는 범위 내에서 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변경과 수정이 가능할 것이다.As described above, the present invention has been illustrated and described with reference to preferred embodiments, but it is not limited to the above-described embodiments, and those of ordinary skill in the art to which the present invention pertains within the scope not departing from the spirit of the present invention Various changes and modifications will be possible.

100:PTC형 태양열 시스템 110:집열관
120:반사판 130:집광형 태양전지
140:프레넬 렌즈100: PTC type solar system 110: heat collecting tube
120: Reflector 130: Condensing solar cell
140: Fresnel lens

Claims (3)

내부에 열 매체가 흐르는 집열관과 일정한 곡률을 갖고 태양광을 반사하여 상기 집열관에 집광시킴으로써 상기 열 매체를 가열하는 반사판을 포함하는 PTC형 태양열 시스템으로서,
태양을 향하는 상기 집열관의 전방에는 상기 집열관으로 직접 조사되는 태양광을 수광하여 전기를 생산하는 집광형 태양전지(CPV:Concentrated Photovoltaic)가 구비되는 것을 특징으로 하는 PTC형 태양열 시스템.
A PTC type solar thermal system comprising: a heat collecting tube through which a heat medium flows; and a reflector having a certain curvature, reflecting sunlight and condensing it on the heat collecting tube to heat the heat medium
A PTC type solar thermal system, characterized in that a Concentrated Photovoltaic (CPV) for generating electricity by receiving sunlight directly irradiated to the heat collecting tube is provided in front of the heat collecting tube facing the sun.
 제 1 항에 있어서,
상기 집광형 태양전지는 상기 집열관의 길이방향으로 길쭉한 형태를 가지며 세로방향 길이는 상기 집열관의 직경보다 작은 것을 특징으로 하는 PTC형 태양열 시스템.
The method of claim 1,
The light collecting solar cell has an elongated shape in the longitudinal direction of the heat collecting tube, and the longitudinal length is smaller than the diameter of the heat collecting tube.
 제 2 항에 있어서,
상기 집광형 태양전지의 전방에는 태양광을 상기 집광형 태양전지로 집광하기 위한 프레넬 렌즈(Fresnel Lens)가 구비되고,
상기 프레넬 렌즈는 상기 집열관의 길이방향으로 길쭉한 형태를 가지며 세로방향 길이는 상기 집열관의 직경보다 작고 상기 집광형 태양전지의 세로방향 길이보다 긴 것을 특징으로 하는 PTC형 태양열 시스템.3. The method of claim 2,
A Fresnel lens for condensing sunlight to the condensing solar cell is provided in front of the condensing solar cell,
The Fresnel lens has an elongated shape in the longitudinal direction of the heat collecting tube, and the longitudinal length is smaller than the diameter of the heat collecting tube and longer than the vertical length of the light collecting solar cell.
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KR20110003259U (en) 2009-09-23 2011-03-30 김철수 The Vacuum Receiver of solar concentrator
KR20150086128A (en) 2014-01-17 2015-07-27 이병인 cleaning method of solar energy solar cell module surface and its apparatus
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