Heat radiation layer with phase transition material, preparation method of heat radiation layer and photovoltaic assembly with heat radiation layer

Abstract

The invention discloses a heat radiation layer with a phase transition material, a preparation method of the heat transition material and a photovoltaic assembly with the heat transition material. Theheat radiation layer is composed of an internal phase transition composite material and a wrapping material which wraps the phase transition composite material, the phase transition composite material is formed by combining a phase transition material and a support material in a dipping adsorption method, and the phase transition material occupies 80wt%-90wt% of the whole heat radiation layer. The heat radiation layer uses the phase transition layer to release or absorb heat from the environment and thus release or store energy in the phase transition process. The photovoltaic assembly with the heat radiation layer can balance heat generated in the working process of the photovoltaic assembly, power loss caused by too high working temperature of the assembly can be reduced, and thus, thepower generation power of the photovoltaic assembly is improved effectively, and the power generation cost is reduced.

Description

technical field [0001] The invention relates to the technical field of photovoltaic power generation, and specifically refers to a heat dissipation layer containing a phase change material, a preparation method thereof, and a solar photovoltaic module including the heat dissipation layer. Background technique [0002] The operating temperature of solar photovoltaic power generation components is an important factor affecting the power generation and performance of photovoltaic power generation systems. The main source of the operating temperature of photovoltaic power generation modules is the partially converted heat that cannot be absorbed by infrared light, the partially converted heat that cannot be excited by low-energy low wavelengths, the heat generated by recombination carriers, and Joule heat. [0003] The impact of temperature on photovoltaic modules is mainly reflected in the open circuit voltage, that is, the open circuit voltage decreases as the temperature rise...

AI Technical Summary

Problems solved by technology

Phase change materials with large phase change latent heat, high stability and low phase change temperature can balance the ambient temperature in a lower temperature range, but generally have the defects of low thermal conductivity and easy leakage

Images