Photovoltaic member heat-transfer coefficient testing device and method thereof

Abstract

The invention provides a photovoltaic member heat-transfer coefficient testing device and a method thereof. The testing device comprises an indoor case, an outdoor case, a test piece frame, a filling plate, an electrothermal membrane member, a wind-separating board, a blower fan, a first evaporator, a second evaporator, a first electric heater, a second electric heater, plural temperature sensors, an environment space case, an air conditioner, a first humidity-control apparatus, a second humidity-control apparatus, an electrothermal membrane power supply, and a control and data acquisition system. The electrothermal membrane member comprises an electrothermal membrane, a panel and a backboard, the upper and lower surfaces of the electrothermal membrane are adhered with the panel and the backboard by an EVA adhesive layer; the plural temperature sensors are uniformly distributed on the electrothermal membrane, and the thermocouples are connected with the control and data acquisition system. The device and the method overcome the disadvantage that the current technology cannot test the heat-transfer coefficient under photoreceptive power generation state, and can provide reference for testing heat-transfer coefficient of an inner heat source building enclosing structure.

Description

【Technical field】 [0001] The invention relates to a device for testing the heat transfer coefficient of a photovoltaic component and a method thereof. 【Background technique】 [0002] Photovoltaic components are products that integrate solar modules and building components, such as solar roofs, walls, curtain walls, doors and windows, and sunshades. These products have both the thermal insulation performance of building envelopes and the electrical performance of photovoltaic modules. In essence, photovoltaic components belong to the category of building envelopes. Therefore, the heat transfer coefficient of photovoltaic components is an important indicator for evaluating the thermal insulation performance of products. In the state of receiving light and generating electricity, the inside of the photovoltaic component will emit heat, mainly including the heat emitted by the solar cells absorbing sunlight and the heat generated by the resistance of the internal circuit of the ...

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Problems solved by technology

[0003] At present, the testing of the heat transfer coefficient of building envelope structures in my country is relatively mature. For example, GB / T 8484-2008 specifies the laboratory test of heat transfer coefficient for building exterior doors and windows This method is also applicable to the test of the heat transfer coefficient of building curtain walls, but my country has not yet formed a heat transfer coefficient test system specifically for photovoltaic components, and there is no laboratory test device and test method for photovoltaic components in the state of receiving light and generating electricity.

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