Soil source heat exchange system applied to solar cell panel

Abstract

The invention belonging to the field of the heat exchange system relates to a soil source heat exchange system applied to a solar cell panel. The system is composed of a solar cell panel, a phase change material, an EVA adhesive, an energy storage board, an inorganic heat pipe and a soil body. The solar cell panel is pasted to the energy storage board by the EVA adhesive; and the phase change material is arranged inside the energy storage board. Therefore, when the phase change process of the phase change material is carried out, too much heat of the solar cell panel is stored into the energy storage board, so that one end of the inorganic heat pipe is connected with the energy storage board and the other end is connected to the soil body to transmit the heat stored by the energy storage board to the soil. When the outdoor temperature is low than the 0 DEG C, the inorganic heat pipe works reversely; the heat of the soil is transmitted to the energy storage board reversely by the phase change process of the phase change material, so that the heat is transferred to the solar cell panel. On the basis of the high-efficiency heat exchange performance of the inorganic heat pipe, the good heat exchange performance of the soil can be fully utilized and the temperature of the solar cell panel is kept in a reasonable range, so that the service life of the solar cell panel is guaranteed and the photoelectric conversion efficiency of the solar cell panel can be improved.

Description

technical field [0001] The invention belongs to the field of heat exchange systems, and in particular relates to a soil source heat exchange system applied to solar panels. Background technique [0002] The principle of solar photovoltaic power generation system is the photovoltaic effect. Taking crystalline silicon as an example, P-type crystalline silicon can be doped with phosphorus to obtain N-type silicon, forming a P-N junction. When the light irradiates the surface of the solar cell, some photons are absorbed by the silicon material, and the energy of the photons is transferred to the silicon atoms, causing the electrons to migrate to free electrons and accumulate on both sides of the P-N junction to form a potential difference. After the external circuit is connected, it passes through An external circuit generates the output power. The essence of the working process is the conversion of photon energy into electrical energy. However, the photoelectric conversion e...

AI Technical Summary

Problems solved by technology

Generally, the operating temperature of solar panels is -40°C-90°C, the best operating temperature is 25°C, and the service life is 25 years. When the temperature is too high, the service life is significantly shortened

Using polycrystalline silicon solar cells under a certain experimental condition to make a 36-cell solar cell module, when the operating temperature of the module is 60°C, it is 35°C higher than 25±2°C under the standard test condition, and the open circuit voltage of the module is reduced by 2.8W, the maximum 15.8% reduction in work productivity

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