KR101966213B1 - PVT module structure including solar thermal syetem with surface coating for absorbing efficiceny - Google Patents

Abstract

The present invention relates to a PV module and a collection module combined system having a surface coating for increasing the solar absorption efficiency, in order to increase the efficiency of a solar collector and a solar collector for solar energy from a PVT module composed of solar and heat And a coating technique for forming a metal thin film coating on the surface of the PV module to reduce the reflectance in a long wavelength region and to increase the absorption efficiency of solar energy to simultaneously increase the heat collecting efficiency of the heat collecting plate.
In addition, it is possible to obtain the heat energy obtained from the heat collector by the air pin, and to obtain the air heat energy by sucking the outside air and form the liquid pipe on the air pin, And a composite type PVT module having the function of a composite type collector.
To this end, a transparent body is attached on the upper side; A PV module for receiving sunlight transmitted through the permeable body and a heat collecting plate for absorbing solar heat are formed; A metal thin film coating structure in which an oxide, a metal complex, and an oxide are sequentially coated is attached to an upper surface of the PV module; And a PV module and a collection module combined system having a surface coating for increasing the solar absorption efficiency.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a PV module having a surface coating for increasing solar absorption efficiency, and a PV system module including solar thermal syetem with surface coating for absorbing efficicency.

In order to increase power generation efficiency and thermal energy acquisition efficiency from a PVT module composed of a PV module and a solar collector as a composite system of a PV module and a heat collecting module having a surface coating for increasing solar heat absorption efficiency, A metal thin film coating is formed on the surface to minimize the transmittance of the solar radiation wavelength and reduce the reflectance in the long wavelength region (infrared ray) of the heat energy type collected, thereby maximizing the thermal efficiency while minimizing the power generation efficiency of the solar heat collection module Technology.

In addition, it is possible to obtain the heat energy obtained from the heat collector by the air pin, and to obtain the air heat energy by sucking the outside air and form the liquid pipe on the air pin, And a composite type PVT module having the function of a composite type collector.

In a residential space such as a house or a space such as an office or a factory, the cooling of the summer and the heating of the winter are emerging as the main living environment factors. Recently, the use of renewable energy has been expanded in various countries It is true.

Renewable energy refers to energy in various fields such as solar energy, geothermal energy, marine energy, bio energy, and wind energy. Among them, solar energy is a promising energy field widely used in renewable energy. However, these energies are low in energy density and have many limitations in their utilization due to inconsistencies in heat source and load.

 To reduce these constraints, renewable energy facilities are usually used in conjunction with fossil fuels. However, as the new and renewable energy technology has been developed recently, technologies for improving energy efficiency by utilizing various new and renewable energy have been developed. The present invention also relates to a technology for utilizing solar energy, solar heat, .

In order to utilize this fusion compound technology, the photovoltaic / thermal (PVT) system is used for the simultaneous production of electricity and thermal energy through the joining of the photovoltaic (PV) conversion module on the upper surface of the solar collector As such, systems are being developed that enable efficient utilization of solar energy per unit area compared to conventional solar energy utilization systems (solar collectors, PV modules).

It can be formed as an energy accumulation module in which a conventional PV module and a collector are integrated into one, and the surface optical characteristics of the conventional PV module are structurally inappropriate from the viewpoint of absorbing heat energy.

In addition, PV modules are required to develop a structure that increases the heat efficiency of the PV module because the power generation efficiency is lowered depending on the temperature, and technological development is required to simultaneously improve the solar efficiency and solar thermal efficiency.

As shown in FIG. 1, the optical characteristics of conventional PV modules show a sunlight reflectance of 50% or more in a wavelength range of 1200 nm or more. These characteristics are ideal characteristics for existing PV modules, but they are somewhat unreasonable in terms of thermal energy acquisition of PVT composite modules. As a result, the heat collection efficiency of the solar photovoltaic module is lowered due to the increase of the heat radiation loss of the heat energy from the viewpoint of low acquisition.

Korean Patent Registration No. 10-1335106 Korean Patent Laid-Open No. 10-2009-113058

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above problems, and an object of the present invention is to provide a thin film coating for controlling the selective reflectivity of light on the surface of a PV module (glass substrate surface) And maintains the emissivity at around 20% in the infrared region, thereby minimizing the deterioration of the power generation efficiency of the PVT complex system and maximizing the thermal energy acquisition efficiency.

In addition, the existing composite module (PVT) is designed to be liquid or pneumatic in terms of thermal energy acquisition and can be applied to a limited range of applications. In contrast, the developed product has air pins And a liquid passageway is formed in the air pin so as to simultaneously heat the air and the liquid so that the energy thus obtained can be directly used to the air load or the heat of the heated liquid can be supplied to the heating and hot- Can be used in combination. In particular, the present invention is to provide a hybrid system in which the temperature of a PV module can be lowered when there is no thermal energy load in the summer, thereby increasing the electric power generation efficiency at the same time.

Other objects and advantages of the present invention will be described hereinafter and will be understood by the embodiments of the present invention. Further, the objects and advantages of the present invention can be realized by the means and the combination shown in the claims.

In order to solve the above-mentioned problems, the present invention provides a semiconductor device, A PV module for receiving sunlight transmitted through the permeable body and a heat collecting plate for absorbing solar heat are formed; A metal thin film coating structure in which an oxide, a metal complex, and an oxide are sequentially coated is attached to an upper surface of the PV module; And a PV module and a collection module combined system having a surface coating for increasing the solar absorption efficiency.

As described above, according to the present invention, a metal thin film coating is formed on the surface of a PV module of solar light to increase the heat collecting efficiency of the collector of the PVT complex system, thereby increasing the thermal energy efficiency and increasing the radiation efficiency of the PV module, It has the effect of increasing the solar power generation efficiency.

Further, by forming air pins on the heat collecting plates and forming liquid passages on the air pins, air energy and liquid energy can be simultaneously obtained, and a heat source suitable for the load of the target building is acquired and utilized, .

 In the summer, the temperature of the overheated PV module can be reduced through the air pin attached to the back of the module, which can contribute to the improvement of power generation efficiency of the summer PV module.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a graph showing the reflection characteristics of a conventional PV module surface and a PV module surface by a metal thin film coating of the present invention. FIG.
2 is a schematic diagram illustrating the structure of a solar PV module and a solar / heat collection module of the present invention.
3 is a schematic view showing a metal thin film coating structure formed on the surface of a PV module of the present invention.
4 is a schematic view showing an exploded perspective view of a collector of the PVT system of the present invention.

Before describing in detail several embodiments of the invention, it will be appreciated that the application is not limited to the details of construction and arrangement of components set forth in the following detailed description or illustrated in the drawings. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front," "back," "up," "down," "top," "bottom, Expressions and predicates used herein for terms such as "left," " right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation. Also, terms such as " first "and" second "are used herein for the purpose of the description and the appended claims, and are not intended to indicate or imply their relative importance or purpose.

The present invention has the following features in order to achieve the above object.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

The present invention

The transmitting body 10 is attached on the upper side,

A PV module (20) receiving sunlight transmitted through the transmission body (10) and a heat collecting plate (53) absorbing solar heat are formed;

A metal thin film coating structure 60 in which an oxide 61, a metal complex 62 and an oxide 61 are sequentially coated is attached to an upper surface of the PV module 20; To a combined PV module and collection module having a surface coating for increased solar absorption efficiency.

In addition, the oxide 61 of the metal thin film coating structure 60 is ZnO, the metal complex 62 is one metal selected from copper, silver and nickel, and two or more metal compounds thereof; .

Also, the oxide (61) is 20 to 50 nm, and the metal complex (62) is 10 to 15 nm; .

The heat collecting plate 53 is attached to the lower side of the PV module 20 so that heat energy is absorbed by the heat conduction and external air flows into the entire lower side surface of the heat collecting plate 53, And the liquid passageway 51 is passed through the air pin 52 in the longitudinal direction of the air pin 52 in the left and right zigzag form so that the liquid To a solar collector 50 that converts solar energy into water energy and converts it into complex heat energy of air and liquid; .

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to FIG. 1 to FIG. 4, wherein the PV module and the collection module hybrid system having the surface coating for increasing the solar absorption efficiency are described in detail.

The PVT system 100 of the present invention is installed on a building or the like by a facility such as a pedestal, and the PVT thus installed acquires electricity from solar energy and simultaneously absorbs heat of solar energy The heat source used is then returned to the collector and circulated in such a way that it is heated by the heat of solar energy.

In one embodiment, the PVT 100 has a hollow shape with a hollow interior and a rectangular box shape. The PVT 100 may have a structure inclined obliquely toward one side at a predetermined angle, , Attached to a vertical wall of a building, or attached to a horizontal wall, to absorb sunlight and solar energy.

The transmissive member 10 is a glass plate that is installed on the uppermost surface of the PVT 100 to allow sunlight and heat to pass through the PVT 100. In addition, it has a function of preventing rainwater, foreign matter, and the like from entering from the outside, and is tightly sealed with the PVT (100).

The present invention is characterized in that a PV module (20) receiving sunlight transmitted through the transparent body (10) and a heat collecting plate (53) absorbing solar heat are formed;

The PV modules 20 are spaced apart from each other by a predetermined distance on the bottom surface of the transmitting body 10 and are arranged horizontally with respect to the transmitting body 10 to absorb solar light and convert the sunlight into electric energy Conversion function.

The heat collecting plate 53 that absorbs the solar heat serves to collect solar heat of the solar thermal energy by being thermally conducted from the PV module 20 and the heat insulating material 40 located at the other side of the transmitting body 10 is connected to the PVT 100 And serves also as a support for the heat collector 50. The structure of the heat sink 50 is the same as that of the heat sink 50 shown in FIG.

In order to efficiently absorb the solar energy of the present invention, a metal thin film coating structure 60 is formed on the upper surface of the PV module 20, and as shown in FIG. 1, (1200 nm or less) maintains the transmittance at the level of 80%, while maintaining the emissivity at the level of 20% in the infrared region (1200 nm or more), thereby increasing the absorption rate of heat energy.

To this end, a metal thin film coating structure 60 in which an oxide 61, a metal complex 62 and an oxide 61 are sequentially coated is attached. More specifically, in one embodiment, the oxide 61 is ZnO , The metal complex 62 is one metal selected from among copper, silver and nickel and two or more metal compounds thereof; .

Also, the oxide (61) is 20 to 50 nm, and the metal complex (62) is 10 to 15 nm; , And a metal vacuum deposition method is used to deposit such nano-sized metal thicknesses.

In order to efficiently absorb the solar energy, the present invention is characterized in that a composite collector for simultaneously obtaining air and liquid energy in the collector 50 is formed so as to increase absorption rate in the long wavelength region of the PV module .

For this, the heat collecting plate 53 is attached to the lower side of the PV module 20 so that the heat energy is absorbed by the heat conduction and the outside air flows into the entire lower side of the heat collecting plate 53, And the liquid passageway 51 is passed through the air pin 52 in the longitudinal direction of the air pin 52 in the left and right zigzag shapes so that the liquid passageway (50) through which a liquid (51) penetrates, an external liquid flows in, converts solar energy into water energy, and is converted into air and liquid complex heat energy; .

The heat collector 50 has an inlet through which air can flow into the one side and passes between the air fins 52. The heat energy absorbed from the heat collecting plate 53 is thermally conducted to the air fins 52 Heat is transferred to the air fins 52 and the air passing between the air fins 52 takes heat energy and flows out from the heat collector 50 to obtain air heat energy so that it is supplied to a place where air heat energy is required.

In addition, a liquid passageway 51 for supplying an external liquid is formed inside the air pin 52, and the liquid passageway 51 is formed in the same shape as the arrangement of the tube pipe mounted on the air pin 52 formed in a general pin- And is disposed in a zigzag shape in the left and right directions toward the longitudinal direction of the air pin 52. The heat of the solar energy collected from the heat collecting plate 53 is absorbed by the working liquid conveyed therein to transfer heat.

A plurality of air passageways (51) arranged in a zigzag manner in the left and right direction are provided in the air pins (52) so as to be spaced apart from each other in a direction orthogonal to the liquid passageway (51) And an air flow path is formed between the heat collecting plate 53 and the heat insulating material 40 to transfer air between the air fins 52 and the air fins 52. The air flow path is formed by a common fin tube heat exchanger .

The air heat energy and the water energy obtained from the solar heat energy from the complex heat collector 50 of the present invention can be used as thermal energy of the heat pump connected to the heat pump device and can supply the heating energy directly to the necessary place.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

10: Transmission body 20: PV module
40: Insulation 50: Collector
51: liquid passage 52: air pin
53:
60: Metal thin film coating structure
61: oxide 62: metal complex
100: PVT

Claims (4)

The transmitting body 10 is attached on the upper side,
A PV module (20) receiving sunlight transmitted through the transmission body (10) and a heat collecting plate (53) absorbing solar heat are formed;
A metal thin film coating structure 60 in which an oxide 61, a metal complex 62 and an oxide 61 are sequentially coated is attached to the upper surface of the PV module 20,
The oxide 61 of the metal thin film coating structure 60 is ZnO and the metal complex 62 is composed of one metal selected from copper, silver and nickel and two or more metal compounds thereof,
The oxide 61 is 20 to 50 nm, the metal complex 62 is 10 to 15 nm,
The heat collecting plate 53 is attached to the lower side of the PV module 20 so that the heat energy is absorbed by the heat conduction and the outside air flows into the entire lower side surface of the heat collecting plate 53 to convert the absorbed solar heat energy into air heat energy And the liquid passageway 51 is passed through the air pin 52 in the longitudinal direction of the air pin 52 in the left and right zigzag shapes so that the liquid outside A solar collector 50 that converts solar energy into water energy and converts the solar heat energy into a complex thermal energy of air and liquid; And a PV module and a collection module complex system having a surface coating for increasing the solar absorption efficiency. delete delete delete

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