KR20100007240A - Pv module using heat of air - Google Patents

Pv module using heat of air Download PDF

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Publication number
KR20100007240A
KR20100007240A KR1020080067785A KR20080067785A KR20100007240A KR 20100007240 A KR20100007240 A KR 20100007240A KR 1020080067785 A KR1020080067785 A KR 1020080067785A KR 20080067785 A KR20080067785 A KR 20080067785A KR 20100007240 A KR20100007240 A KR 20100007240A
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KR
South Korea
Prior art keywords
heat
air
photovoltaic
photovoltaic module
heat dissipation
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Application number
KR1020080067785A
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Korean (ko)
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KR100999955B1 (en
Inventor
김준태
김진희
홍정표
Original Assignee
공주대학교 산학협력단
메카니아 주식회사
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Application filed by 공주대학교 산학협력단, 메카니아 주식회사 filed Critical 공주대학교 산학협력단
Priority to KR1020080067785A priority Critical patent/KR100999955B1/en
Publication of KR20100007240A publication Critical patent/KR20100007240A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00Supporting structures for PV modules
    • H02S20/20Supporting structures directly fixed to an immovable object
    • H02S20/22Supporting structures directly fixed to an immovable object specially adapted for buildings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40Thermal components
    • H02S40/42Cooling means
    • H02S40/425Cooling means using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40Thermal components
    • H02S40/44Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/10Photovoltaic [PV]
    • 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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • 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
    • Y02E10/60Thermal-PV hybrids

Abstract

The crystalline photovoltaic module generates heat in the process of generating power by receiving solar energy. The heat generated at this time is a factor that degrades the electricity production performance of the photovoltaic module. It is necessary to remove the heat. Integrating a solar power module into a building's envelope by integrating it into a building requires considerable effort to discharge generated heat. In order to solve the heat dissipation difficulty of the crystalline photovoltaic module and improve the efficiency, a method by ventilation has been proposed. The present invention is to use for the purpose of hot water supply or heating by utilizing as a heat source for heating the air without actively discharging the heat generated in the electricity production process of the photovoltaic module. Devices with this function are called photovoltaic / thermal (PV / T) composite systems that secure the heat source generated by photovoltaic systems. In this case, in order to more efficiently obtain the heat source generated from the photovoltaic module, a more advanced form of a heat collecting device is required than a passive method of simply circulating air to obtain heat.
Air-collecting, Photovoltaic Generator, Solar / Heat Combined Module, PVT Air Collector, Heat Dissipation Fin

Description

Air-Collected Solar Power Generator {PV Module using Heat of Air}

The present invention relates to an air-collecting photovoltaic device, and more particularly, to improve the power generation performance of a photovoltaic module and to collect heat generated from the photovoltaic module so that it can be used as another heat source. It relates to a thermal photovoltaic device.

Due to the advancement of industrial society and the increase of population, much energy is required. The most widely used energy sources are fossil energy sources such as coal and petroleum natural gas, but these energy sources are limited and are gradually being depleted. This is urgent. On the contrary, unlike fossil energy sources such as coal and petroleum natural gas, solar heat is a clean energy source with no pollution, and is supplied almost unlimitedly. Therefore, it has been used for a long time as an energy source for industrial, heating or automobiles. In addition to steady research for commercialization is being made.

Currently, solar collectors and solar modules are used as devices that use solar energy as an alternative energy source.

Flat solar collector and system is a new renewable energy system that obtains hot water and heating energy by directly heat-exchanging heat medium by using solar energy and is widely used because of its high efficiency and low initial investment cost.

On the other hand, photovoltaic modules and systems are devices that produce electrical energy by absorbing the light energy of sunlight and converting it into electrical energy without the environmental pollution by only one installation without the need for separate maintenance.

In the case of crystalline systems, only about 12 to 16% of the energy incident from the sun is used for power generation, so the solar energy utilization efficiency is low and the initial investment is very expensive. At this time, all the remaining energy is consumed as heat. At this time, due to the heat consumed to increase the temperature of the photovoltaic cell using a silicon material, etc., due to the characteristics of the cell, the electrical conversion efficiency is reduced when the electrical energy conversion by the temperature rise.

As such, the crystalline photovoltaic module generates heat in the process of generating power by receiving solar energy, and the generated heat degrades the electricity production performance of the photovoltaic module. It is necessary to remove the heat in order to promote this. Integrating a photovoltaic module into a building's envelope by integrating it into a building requires considerable effort to release the generated heat. In order to solve the heat dissipation difficulty of the crystalline photovoltaic module and to improve efficiency, a method by ventilation has been suggested, but heat emission has been limited.

An object of the present invention to improve the above problems is to efficiently heat the heat generated from the solar power module to improve the power generation performance of the photovoltaic module and to use the heat of the heat as another heat source such as hot water supply or heating The present invention provides an air-collecting photovoltaic device, which is a high efficiency photovoltaic / thermal (PV / T) composite air solar collector that collects energy to be collected.

The air-collecting photovoltaic device of the present invention for achieving the above object is installed on the roof or the outer wall of the building (1) and absorbs solar energy and converts it into electrical energy to generate electricity and the sun is connected to a plurality of cells Photovoltaic module 10; Attached to the rear outer surface of the photovoltaic module 10 and spaced apart from the roof or outer wall of the photovoltaic module 10 and the building (1) to form a receiving space 20 for receiving air therebetween air inlet Is provided with an outer frame 30; A thermally conductive adhesive 40 applied to the rear surface of the photovoltaic module 10; A heat dissipation plate (50) attached to the photovoltaic module (10) by the thermally conductive adhesive (40) and dissipating heat generated from the photovoltaic module (10) to air received in the accommodation space (20); A plurality of heat dissipation fins 60 attached to the rear surface of the heat dissipation plate 50 to facilitate the discharge of heat radiated from the heat dissipation plate 50; An air collector 70 for collecting heated air contained in the accommodation space 20 so as to be used as a hot water supply or heating; Characterized in that comprises a.

In addition, the outer frame 30 is characterized in that it has a height so that the separation distance between the photovoltaic module 10 and the roof or outer wall of the building (1) is 10 ~ 15cm.

In addition, the heat dissipation fin 60 is formed by bending a metal plate having a length corresponding to the width or height of the photovoltaic module 10 in the form of 'B' or 'C' and adjacent to each other so as to be adjacent to each other. It is characterized in that attached to.

In addition, the heat dissipation fin 60 is characterized in that attached to the heat dissipation plate 50 with a thermal conductive adhesive.

As described above, the air-collecting photovoltaic device is a photovoltaic / thermal (PV / T) composite pneumatic solar energy acquisition device that simultaneously produces electrical and thermal energy required for a building. The effect of the attached heat sink and fins can be used to more actively acquire not only the cooling effect of the photovoltaic module but also a higher heat source at the same time. It can be used as a device to produce the required heat and electricity simultaneously. In addition, the air-collecting photovoltaic device according to the present invention prevents the efficiency degradation of the photovoltaic module due to temperature and at the same time to collect heat to be radiated to use as a heat source of hot water supply or heating to the existing photovoltaic module and Unlike solar collectors, they can be used in combination with each other to produce more energy per unit area at the same time. In addition, it is possible to apply to the building roof and building walls like the existing photovoltaic modules and solar collectors, and the manufacturing process is very simple to reduce the equipment investment cost and manufacturing cost.

The present invention is to utilize as a heat source for heating the air by actively using it without discharging the heat generated during the electricity production process of the photovoltaic module. Devices with these functions are called photovoltaic / thermal (PV / T) composite systems that secure the heat source generated by photovoltaic systems. In this case, in order to more efficiently obtain the heat source generated from the photovoltaic module, it is necessary to construct a more advanced type of heat collecting device than the passive method of simply circulating air to obtain heat from the rear of the module.

Hereinafter, with reference to the accompanying drawings for the air-collecting photovoltaic device of the present invention will be described in detail.

1 is an exploded perspective view showing an air-collecting photovoltaic device according to the present invention, Figure 2 is a partial cutaway cross-sectional view showing an air-collecting photovoltaic device according to the present invention, Figure 3 is an air collecting according to the present invention Figure 4 is a cross-sectional view showing a thermal photovoltaic device, Figure 4 is a state diagram showing the air-collecting photovoltaic device according to the present invention.

As shown, the air-collecting photovoltaic device according to the present invention includes a photovoltaic module 10 for generating electricity by absorbing solar energy and converting it into electrical energy; An outer frame 30 attached to the rear outer surface of the photovoltaic module 10 and forming an accommodation space 20 for receiving air; A thermally conductive adhesive 40 applied to the rear surface of the photovoltaic module 10; A heat dissipation plate 50 attached to the photovoltaic module 10 by the thermal conductive adhesive 40 and dissipating heat generated from the photovoltaic module 10; A plurality of heat sink fins 60 to facilitate the discharge of heat radiated from the heat sink (50); An air collector (70) for collecting the heated air received in the accommodation space (20); It is made, including.

The photovoltaic module 10 is installed on the roof or the outer wall of the building 1 and absorbs solar energy and converts it into electrical energy to generate electricity and connects a plurality of cells.

The basic configuration of the photovoltaic module 10 can be applied to a commercially available photovoltaic module without modification. In order to improve the heat collection efficiency, the rear finish of the general photovoltaic module can be used in the form of a metal sheet.

Typical photovoltaic modules consist of protective glass from the top, EVA, solar cells, EVA, and thick plates. The present invention is characterized in that the heat generating plate 50 is attached to a thick plate to collect heat emitted from the photovoltaic module using solar light and solar heat at the same time to generate and collect heat.

One photovoltaic module 10 can be applied to any size of the large size module 1 to 2m in size and large to large modules in the market.

The outer frame 30 is the same as the outer shape of the photovoltaic module 10 and is attached to the rear outer surface of the photovoltaic module 10. In addition, the outer frame 30 is spaced apart from the roof or outer wall of the photovoltaic module 10 and the building 1 to form a receiving space 20 for receiving air therebetween.

At this time, the outer frame 30 preferably has a height such that the distance between the photovoltaic module 10 and the roof or outer wall of the building 1 is 10 ~ 15cm. If the distance between the photovoltaic module 10 and the roof or the outer wall of the building 1 is too small, the flow of air is not smooth and air collection is not easy, and when the distance is too large, the air accommodated in the accommodation space 20 The heat dissipation of the furnace is easy, but the capacity of the air collector must be large, and the heat collecting efficiency to be collected by the air is reduced, so that it is not easy to use as another heat source. Therefore, the distance between the photovoltaic module 10 and the roof or the outer wall of the building 1 is to have a suitable size.

The outer frame 30 is connected to the accommodation space 20 and is provided with an air inlet (not shown) through which air enters the accommodation space 20.

The solar cell module 10 and the outer frame 30 are installed on the upper surface of the building structure 16 before finishing the building envelope to produce electricity and heat at the same time as they serve as the building envelope.

The thermally conductive adhesives 40 are applied to the rear surface of the photovoltaic module 10 to serve to attach the heat sink 50 to the rear surface of the photovoltaic module 10.

The thermally conductive adhesive 40 uses a known one such as epoxy, and transfers heat generated from the photovoltaic module 10 to the heat sink 50 with less heat loss.

The heat sink 50 is attached to the photovoltaic module 10 by the heat conductive adhesive 40 and radiates heat generated from the photovoltaic module 10 to air received in the accommodation space 20. It plays a role. A plurality of heat dissipation fins 60 are provided on the rear surface of the heat dissipation plate 50 to dissipate heat transferred from the photovoltaic module 10.

At this time, the heat dissipation fin 60 is formed by bending a metal plate having a length corresponding to the width or height of the photovoltaic module 10 in the form of 'B' or 'C' and adjacent to each other so as to be adjacent to each other. It is preferably attached to.

The heat dissipation fins 60 are attached to the rear surface of the heat dissipation plate 50 to facilitate the discharge of heat radiated from the heat dissipation plate 50 and are provided in plurality. In addition, the heat dissipation fin 60 is preferably attached to the heat dissipation plate 50 with a heat conductive adhesive.

The air collector 70 collects heated air received in the accommodation space 20 to be used as a hot water supply or heating so as to exchange heat with the heat medium used in the hot water heater or the heater. The air collector 70 may be used as a heat source required for a building by using a fan that sucks and ventilates the heat dissipated and collected heat source. In addition, when not used for heating and hot water supply heat radiation and ventilation of the solar module can increase the power generation efficiency of the solar module.

As described above, the air-collecting photovoltaic device of the present invention reduces the temperature due to the cooling effect of the photovoltaic module by the radiating fins, thereby improving the power generation performance and cooling the heat radiated more actively and the heat source of the heating system. Because it can be used as, it can be usefully applied to one installation space.

When the photovoltaic module 10 is installed on the roof or the outer wall of the building 1, a plurality of the photovoltaic modules 10 are installed adjacent to each other, and a plurality of photovoltaic modules 10 and each of the outer frames 30 are formed. The accommodation space 20 may be installed to be connected to one air collector 70 or divided into compartments so as to be connected to a plurality of air collectors 70. In Figure 4 it is shown to be installed to be connected to one air collector.

In addition, the air-collecting photovoltaic device of the present invention can be installed independently of the building envelope in addition to the building envelope finish solar power module-air collector (PVT) irrespective of the building envelope in the form of a pneumatic collector as a unit Can be used as an air collector.

5 and 6 are graphs measuring the electrical efficiency and the thermal efficiency of the air-collected photovoltaic device according to the present invention, respectively, in the air-collected photovoltaic device according to the present invention. This is a result comparing the case of not using the heat dissipation fin with the case of using the heat dissipation fin of aluminum and copper material.

As shown in the drawing, the heat dissipation fins were found to have better power generation and thermal performance than those without.

As such, the air-collecting photovoltaic device according to the present invention, which can simultaneously produce electricity and thermal energy in one device, has been found to have excellent power generation performance and thermal performance as a result of measuring power generation performance and thermal performance.

1 is an exploded perspective view showing an air-collecting photovoltaic device according to the present invention.

Figure 2 is a partial cutaway cross-sectional view showing an air-collecting photovoltaic device according to the present invention.

3 is a cross-sectional view showing an air-collecting photovoltaic device according to the present invention.

Figure 4 is a state diagram showing the air-collecting photovoltaic device according to the present invention.

5 and 6 are graphs measuring the power generation performance and the thermal performance of the air-collecting photovoltaic device according to the present invention, respectively.

* Description of the symbols for the main parts of the drawings *

1: Building 10: PV Module

20: accommodation space 30: outer frame

40: thermally conductive adhesive 50: heat sink

60: heat sink fin 70: air collector

Claims (4)

  1. A photovoltaic module 10 installed on a roof or an outer wall of the building 1 to absorb solar energy and convert the photovoltaic energy into electric energy to generate electricity;
    Attached to the rear outer surface of the photovoltaic module 10 and spaced apart from the roof or outer wall of the photovoltaic module 10 and the building (1) to form a receiving space 20 for receiving air therebetween air inlet Is provided with an outer frame 30;
    A thermally conductive adhesive 40 applied to the rear surface of the photovoltaic module 10;
    A heat dissipation plate (50) attached to the photovoltaic module (10) by the thermally conductive adhesive (40) and dissipating heat generated from the photovoltaic module (10) to air received in the accommodation space (20);
    A plurality of heat dissipation fins 60 attached to the rear surface of the heat dissipation plate 50 to facilitate the discharge of heat radiated from the heat dissipation plate 50;
    An air collector 70 for collecting heated air received in the accommodation space 20 so as to be used as a hot water supply or heating;
    Air-collecting photovoltaic device characterized in that comprises a.
  2. The method of claim 1,
    The outer frame 30 has a height so that the separation distance between the photovoltaic module 10 and the roof or the outer wall of the building (1) is 10 ~ 15cm, characterized in that the air-heated photovoltaic device.
  3. The method according to claim 1 or 2,
    The heat dissipation fin 60 is formed by bending a metal plate having a length corresponding to the width or height of the photovoltaic module 10 in a or b shape and adjoining each other to be attached to the heat dissipation plate 50. Air-collecting photovoltaic device characterized in that it becomes.
  4. The method of claim 3, wherein
    The heat dissipation fin (60) is an air-collecting photovoltaic device, characterized in that attached to the heat sink 50 with a thermal conductive adhesive.
KR1020080067785A 2008-07-11 2008-07-11 PV Module using Heat of Air KR100999955B1 (en)

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KR100999955B1 KR100999955B1 (en) 2010-12-13

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101035481B1 (en) * 2010-08-24 2011-05-18 박영환 Radiant heat apparatus for solar module
WO2011116035A2 (en) * 2010-03-16 2011-09-22 Ns Acquisition Llc. Integrated heat sink and system for enhanced thermal power generation
CN103062913A (en) * 2013-01-22 2013-04-24 中国科学技术大学 Flat-panel solar photovoltaic water-heating air-heating compound heat collector
US8471141B2 (en) 2007-05-07 2013-06-25 Nanosolar, Inc Structures for low cost, reliable solar roofing
WO2013148624A3 (en) * 2012-03-30 2013-12-05 Sunpower Corporation Electronic component housing with heat sink
KR101529302B1 (en) * 2014-04-24 2015-06-29 조규오 Cold and warmth wind pannel device of the future
CN106952980A (en) * 2017-05-16 2017-07-14 广东大粤新能源科技股份有限公司 Strong cooled photovoltaic power generation plate
WO2018117337A1 (en) * 2016-12-22 2018-06-28 이재혁 Solar cell cooling device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200085958A (en) 2019-01-07 2020-07-16 권기진 Solar heating collector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196942U (en) 1981-06-08 1982-12-14
JPH1136540A (en) * 1997-07-14 1999-02-09 Sekisui Chem Co Ltd Installation construction of solar cell module
JP2001059655A (en) * 1999-08-21 2001-03-06 Takao Ishihara Solar hot air system
KR100554362B1 (en) * 2005-05-09 2006-02-24 대한테크렌(주) Photovoltaics power generator having a radiating fin

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8471141B2 (en) 2007-05-07 2013-06-25 Nanosolar, Inc Structures for low cost, reliable solar roofing
WO2011116035A2 (en) * 2010-03-16 2011-09-22 Ns Acquisition Llc. Integrated heat sink and system for enhanced thermal power generation
WO2011116035A3 (en) * 2010-03-16 2011-12-22 Ns Acquisition Llc. Integrated heat sink and system for enhanced thermal power generation
KR101035481B1 (en) * 2010-08-24 2011-05-18 박영환 Radiant heat apparatus for solar module
WO2013148624A3 (en) * 2012-03-30 2013-12-05 Sunpower Corporation Electronic component housing with heat sink
US9635783B2 (en) 2012-03-30 2017-04-25 Sunpower Corporation Electronic component housing with heat sink
CN103062913A (en) * 2013-01-22 2013-04-24 中国科学技术大学 Flat-panel solar photovoltaic water-heating air-heating compound heat collector
KR101529302B1 (en) * 2014-04-24 2015-06-29 조규오 Cold and warmth wind pannel device of the future
WO2018117337A1 (en) * 2016-12-22 2018-06-28 이재혁 Solar cell cooling device
CN106952980A (en) * 2017-05-16 2017-07-14 广东大粤新能源科技股份有限公司 Strong cooled photovoltaic power generation plate

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