KR20030012754A - Solar Compound parabolic concentrator having a flat plate glass - Google Patents

Solar Compound parabolic concentrator having a flat plate glass Download PDF

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KR20030012754A
KR20030012754A KR1020010048079A KR20010048079A KR20030012754A KR 20030012754 A KR20030012754 A KR 20030012754A KR 1020010048079 A KR1020010048079 A KR 1020010048079A KR 20010048079 A KR20010048079 A KR 20010048079A KR 20030012754 A KR20030012754 A KR 20030012754A
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solar
collector
sunlight
tube
heat
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강명철
고창열
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한국에너지21주식회사
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/40Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
    • F24S10/45Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/80Arrangements for concentrating solar-rays for solar heat collectors with reflectors having discontinuous faces
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

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

Abstract

본 발명은 CPC(Compound Parabolic Concentrator)형 태양열 집광기에 관한 것으로 태양을 추적하지 않고 고정형태로 태양광을 집광하여 유용한 열에너지로 변환시키는 태양열 집열장치이다.The present invention relates to a CPC (Compound Parabolic Concentrator) type solar collector, which collects sunlight in a fixed form without tracking the sun and converts it into useful thermal energy.

본 발명은 태양을 추적하지 않고 고정형태로 설치하여 태양광을 집광하여 유용한 열에너지로 변환시키는 장치로서 원관형 흡수기에서 열손실을 줄이기 위해서 원형 유리관을 사용할 경우 반사면 하부 설계 및 이러한 구성요소로 이루어진 태양열 집광 집열기 형상에 관한 것이다.The present invention is a device that is installed in a fixed form without tracking the sun to collect sunlight and convert it into useful thermal energy, when using a circular glass tube to reduce heat loss in the tube-shaped absorber, the bottom surface of the reflecting surface design and solar heat consisting of these components Condensing collector shape.

태양에너지를 집광하기 위해서는 태양광을 받아들이는 면적으로 들어온 태양광을 흡수기로 보내기 위한 반사면이 필요하다. 집광형 집열기는 태양광을 받는 면적 대비 흡수하는 면적으로 집광비를 나타내는데 그 집광비가 높을수록 고온의 열에너지를 열손실없이 얻는 것이 가능하다. CPC형 집열기는 추적장치없이 태양열을 집광하는 집열기로서 평판형 집열기처럼 고정형으로 설치가 가능하다는 장점이 있다.To condense solar energy, a reflecting surface is needed to direct sunlight coming into the absorber to the area that receives sunlight. The condenser collects the condensing ratio by the area absorbed by the area receiving sunlight, and the higher the condensing ratio, the higher the heat energy can be obtained without heat loss. CPC type collector is a collector that collects solar heat without a tracking device, and has the advantage that it can be fixedly installed like a flat plate collector.

본 발명은 평판형 유리와 원관형 흡수기를 사용한 복합 태양열 집광기로 태양광을 원형 흡수관에 모이도록 반사면 형상을 구성하여 반사광이 원형 흡수관에 균일하게 분포되고 일정한 흡수면적에 대해 집광비를 증가시켜 태양광을 집광하는 특징이 있다. 다른 집열장치보다 제작상, 관리면에 이점이 있으며 반사면에서의 열손실을 최소화할 수 있도록 단열을 증가할 수 있다.The present invention is a composite solar collector using a plate glass and a tube-shaped absorber to configure the reflecting surface shape to collect the sunlight in the circular absorber tube so that the reflected light is uniformly distributed in the circular absorber tube and increase the condensing ratio for a constant absorption area There is a feature to concentrate the sunlight. In terms of fabrication, management benefits over other heat collectors and increased insulation to minimize heat losses on the reflective surfaces.

Description

평판형 유리를 갖는 태양열 집광장치{Solar Compound parabolic concentrator having a flat plate glass}Solar compound parabolic concentrator having a flat plate glass}

본 발명은 평판형 유리를 갖는 태양열 집광장치에 관한 것이다.The present invention relates to a solar heat collecting device having a flat glass.

일반적으로 태양열집열기는 시스템 적용분야로 자연형시스템과 설비형시스템으로 나누고 온도적용별로 저온용, 중온용, 고온용으로 분류할 수 있는데 저온용으로는 일반 평판형 집열기가 주를 이루고 있고 중온용 이상으로 이용하기 위해서는 태양에너지를 집광하는 것이 필수적이다.In general, solar collectors are divided into natural type and equipment type system as the system application field, and can be classified into low temperature, medium temperature, and high temperature by temperature application. In order to use it, it is essential to collect solar energy.

기존 평판형 집열기의 집열 성능을 갖고서는 중고온 이용 적용범위에 적합하지 않으므로 필수적으로 집광형 집열기의 개발은 이루어 져야 한다. 대부분의 집광형 집열기는 집광비를 높이기 위하여 태양을 추적해야 하므로 추적장치는 필수적이다. 그러나 CPC형 태양열집열기는 태양열 추적하지 않고 적용 온도범위에 맞는 집광비를 선택하여 설계가 가능하므로 중온용으로는 가장 적합하다.Since the current collector performance of the existing flat plate collector is not suitable for the application of the high-temperature application, the development of the condenser collector is essential. Most concentrating collectors must track the sun to increase the concentration ratio, so a tracking device is essential. However, CPC type solar collectors are most suitable for medium temperature because they can be designed by selecting the condensing ratio for the application temperature range without tracking solar heat.

본 발명은 태양을 추적제어로 추적하지 않고 고정형태로 태양광을 집광하여 유용한 열에너지로 변환시키는 장치의 반사면 형상 구조와 원관형흡수기의 열손실을 줄이기 위해서 원형 유리관을 사용할 경우 반사면 하부설계 및 이러한 구성요소로 이루어진 태양열 집광 집열기 형상에 관한 것이다.The present invention provides a reflective surface design of a device for condensing sunlight in a fixed form and converting it into useful thermal energy without tracking the sun and using a circular glass tube to reduce the heat loss of the tubular absorber. It relates to the shape of a solar collector collector consisting of such components.

태양에너지를 집광하기 위해서는 태양광을 받아들이는 면적으로 들어온 태양광을 흡수기로 보내기 위한 반사면이 필요하다. 집광형 집열기는 태양광을 받는 면적 대비 흡수하는 면적으로 집광비를 나타내는데 그 집광비가 높을수록 고온의 열에너지를 열손실없이 얻는 것이 가능하다. 그러나 집광비가 너무 높아지면 고정형으로 설치하여 사용하는데 한계가 따르며 추적장치로서 추적을 해야 한다.To condense solar energy, a reflecting surface is needed to direct sunlight coming into the absorber to the area that receives sunlight. The condenser collects the condensing ratio by the area absorbed by the area receiving sunlight, and the higher the condensing ratio, the higher the heat energy can be obtained without heat loss. However, if the condensation ratio is too high, there is a limit to the fixed type installation and use, and the tracking device must be tracked.

CPC형 집열기는 추적장치없이 태양열을 집광하는 집열기로서 평판형 집열기처럼 고정형으로 설치가 가능하다.CPC type collector is a collector that collects solar heat without a tracking device and can be fixedly installed like a flat plate collector.

본 발명은 상기와 같은 문제점을 해결하기 위하여 기존 평판형처럼 고정적으로 설치가 가능하면서도 평판형보다 높은 온도인 중온이상으로 집열온도를 높일수 있는 장치이다. 설치나 관리, 보수면에서 평판형과 동일하게 취급할 수 있으며 열손실을 줄여 집광온도를 높게 만들 수 있는 장치를 제조하는데 목적이 있다.In order to solve the above problems, the present invention is a device that can be fixedly installed like a conventional flat type but can increase the heat collecting temperature to a temperature higher than the medium temperature, which is higher than the flat type. In terms of installation, maintenance, and maintenance, it can be handled in the same way as a flat plate type, and its purpose is to manufacture a device that can raise the condensing temperature by reducing heat loss.

도 1은 평판형 유리를 사용한 태양열 집광 집열기 단면도1 is a cross-sectional view of a solar collector using a flat glass

도 2는 원관형 흡수기를 사용하는 복합 태양열 집광기의 반사면 단면도2 is a cross-sectional view of the reflecting surface of a complex solar collector using a tubular absorber

도 3은 내부 원형 유리관, 원관형 흡수기 및 반사면의 조합으로 이루어진 단위 태양열 집속 집열기3 is a unit solar concentrator consisting of a combination of an inner circular glass tube, a cylindrical absorber and a reflecting surface;

도 4는 평판형 유리를 사용한 태양열 집광 집열기 모듈Figure 4 is a solar collecting collector module using a flat glass

상기와 같은 목적을 달성하기 위하여 발명과 관련하여 이루어진 도면을 설명하면 다음과 같다.Referring to the drawings made in connection with the invention in order to achieve the above object is as follows.

도 1은 태양열 집광 집열기를 단면도를 도시한 것으로 이 장치의 구성은 평판형 유리(22), 태양광을 흡수기로 반사하는 반사면(23), 반사된 태양광을 흡수하는 원형 흡수관(25), 흡수관에서의 열손실을 줄이기 위한 원형유리관(26)과 반사면 뒷면으로의 열을 차단하기 위한 단열부(24)의 조합으로 구성된다.FIG. 1 shows a cross-sectional view of a solar collecting collector, and the configuration of the apparatus is a flat glass 22, a reflecting surface 23 reflecting sunlight to an absorber, and a circular absorbing tube 25 absorbing reflected sunlight. , A combination of a circular glass tube 26 for reducing heat loss in the absorption tube and a heat insulating portion 24 for blocking heat to the back of the reflective surface.

도 2은 단일 태양열 집광 집열기를 도시한 것으로 이 집광 집열기는 반사면 (23), 원형 유리관(26), 원형 흡수관(25)로 구성된다.FIG. 2 shows a single solar condenser, which is composed of a reflecting surface 23, a circular glass tube 26, and a circular absorbing tube 25.

도 3은 도2의 단면도를 나타내는 것으로 장치 구성은 도 2와 같다.3 is a cross-sectional view of FIG. 2 and the device configuration is the same as FIG.

도 4는 외부 평판형 유리와 원형 흡수관, 반사면, 원형 흡수관을 감싸는 원형 유리관을 여러개 조합하여 구성된 모듈 형태의 태양열 집광 집열기를 도시한 것으로 제작비용이 저렴하고 제작이 용이하다.FIG. 4 illustrates a modular solar condenser configured by combining a plurality of external flat plate glass, a circular absorber tube, a reflective surface, and a circular glass tube surrounding the circular absorber tube.

본 발명의 기술이 적용되는 집광장치는 반사율이 높은 반사면을 사용하고 평판형 유리는 투과율이 높으며 반사면에서의 태양광을 흡수하는 흡수관에서는 태양광에너지를 최대로 흡수할 수 있도록 흡수율을 극대화 시킬수 있는 블랙크롬으로 도금된 구리관을 설치하여 작동유체가 유동할 수 있도록 한다.The light collecting device to which the technique of the present invention is applied uses a reflective surface with high reflectance, and a flat glass has a high transmittance, and the absorption tube absorbing sunlight from the reflective surface maximizes the absorption rate to maximize the absorption of solar energy. Install a copper pipe plated with black chrome to allow the working fluid to flow.

본 발명은 열손실 방지를 위하여 전면에 평판형 유리(22)를 설치하고 내부에 포물면 반사경(23)을 고정시켜 태양광을 반사하면 흡수관(25)에서 태양광을 흡수하게 되는데 흡수관에서 외부로의 열손실을 줄이기 위한 원형 유리관(26)으로 흡수관을 감싸게 된 구조이다. 유리판은 투과율이 좋은 유리를 사용하며 반사면은 반사율이 높은(98%) 재질을 사용하고 흡수관에는 표면에 블랙크롬을 도금하여 태양광에너지의 흡수율을 증대시키게 되어 흡수관을 통하야 흐르는 작동유체의 온도를 상승시켜 고온의 온도를 생산할 수 있다.The present invention is to install the plate-shaped glass 22 on the front to prevent heat loss and to fix the parabolic reflector (23) inside to reflect the sunlight to absorb the sunlight from the absorption tube (25) outside the absorption tube The circular glass tube 26 to reduce the heat loss of the furnace is a structure to surround the absorption tube. The glass plate uses glass with good transmittance, and the reflecting surface is made of high reflectance material (98%) and the absorbing tube increases the absorption rate of solar energy by plating black chromium on the surface so that the working fluid flows through the absorption tube. By increasing the temperature of the high temperature can be produced.

이러한 형태의 모듈은 원형 흡수관들을 서로 직렬로 연결하여 열전달 매체인 작동유체가 한 방향으로 흐를 수 있게 하고 이 작동유체는 반사면에서 반사된 태양광에 의해서 온도가 상승한다. 이러한 모듈 형태는 모듈과 모듈간의 연결이 용이하고 원하는 집열 면적에 대응하기 쉽게 하기 위해서 모듈 형태로 구성한다.This type of module connects circular absorption tubes in series to each other so that the working fluid, which is a heat transfer medium, can flow in one direction, and the working fluid is heated by the sunlight reflected from the reflecting surface. This module form is configured in the form of a module in order to facilitate the connection between the module and the module and to easily correspond to the desired heat collecting area.

본 발명은 입사하는 태양광을 반사면에 의하여 원형 흡수관에 흡수되도록 구성함으로서 광손실을 최소화하면서 집광 태양광을 원형 흡수관에 균일하게 분포를 시켜 평판형에서 얻을 수 없는 중온이상의 온도까지 생성시킬수 있다. 이러한 형태로 구성한 태양열 집광 집열기는 고정설치로서 작동이 되므로 태양을 추적할 필요가 없고 열손실 문제를 해결하기 위해서 원형 흡수관을 유리관내에 설치하여 열손실을 줄일 수 있다. 단위 모듈 형태로 제작이 가능함으로 설치가 간편하고 모듈 형태로서 제작상 용이한 장점이 있다. 태양열을 이용하여 중온이상까지 작동유체의 온도를 상승시켜 집광효율을 증대시키며 온수급탕과 냉난방장치에 활용할 수 있다.The present invention is configured to absorb the incident sunlight to the circular absorption tube by the reflecting surface to minimize the light loss while uniformly distributing the concentrated solar light in the circular absorption tube to produce a temperature above the middle temperature that can not be obtained in the flat plate type have. This type of solar collector is operated as a fixed installation, so there is no need to track the sun and the heat absorption can be reduced by installing a circular absorption tube in the glass tube to solve the heat loss problem. Since it can be manufactured in the form of unit module, it is easy to install and has the advantage of being easy to manufacture as module. It uses solar heat to increase the temperature of working fluid to above the middle temperature to increase the condensing efficiency and can be utilized for hot water hot water supply and air conditioner.

Claims (2)

단위 태양열 집광 집열기에서 반사면과 흡수관의 외부에 평판형 유리를 설치하여 제조하는 태양열집광 집열기 형상과 구조 및 단위 반사면과 반사면을 연결시켜 작동유체의 유동을 할수 있도록 구성함을 특징으로 하는 평판형 유리를 갖는 태양열 집광장치The solar collector collector shape and structure manufactured by installing flat glass on the reflecting surface and the absorption pipe outside of the unit solar collector, and the unit reflecting surface and the reflecting surface are connected to allow the flow of working fluid. Solar Condenser with Flat Glass 1항에 있어서,According to claim 1, 단위 태양열 집광 집열기의 원형 흡수관 외부에 열손실을 줄이기 위한 원형 유리관을 설치한 형상과 반사면 그리고 외부 평판형 유리판으로 조합된 단위 태양열 접속 집열기 형상 또는 내부 원형 유리관을 생략한 단위 태양열 집광 집열기 형상 및 구조를 특징으로 하는 평판형 유리를 갖는 태양열 집광장치The shape of the circular solar tube outside the circular absorption tube of the unit solar collector and the reflection surface and the unit solar connection collector combined with the external flat glass plate or the unit solar condenser without the internal circular glass tube Solar light concentrator with flat glass, characterized by its structure
KR1020010048079A 2001-08-02 2001-08-02 Solar Compound parabolic concentrator having a flat plate glass Ceased KR20030012754A (en)

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WO2008007866A1 (en) * 2006-07-14 2008-01-17 Hae Sung Solar Co., Ltd. Light-emitting display device appling crystal
WO2008097163A1 (en) * 2007-02-11 2008-08-14 Lars Eriksson A device for decreasing the carbon dioxide content of the earth
CN114017930A (en) * 2021-10-10 2022-02-08 北京工业大学 Large-receiving-angle multi-curved-surface multi-runner groove type solar air heat collector

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CN114017930A (en) * 2021-10-10 2022-02-08 北京工业大学 Large-receiving-angle multi-curved-surface multi-runner groove type solar air heat collector

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