Thermo-photovoltaic power generation system based on heat pipe heat radiation platform

Abstract

Provided is a thermo-photovoltaic power generation system based on a heat pipe heat radiation platform. The thermo-photovoltaic power generation system comprises a heating module, a radiator, a thermoelectric conversion module, and a cooling module, the radiator emits infrared radiation energy through the heating of the radiator via the heating module, the thermoelectric conversion module is arranged at the periphery of the radiator in a surrounding manner and used for receiving the infrared radiation energy emitted by the radiator and converting the infrared radiation energy to electric energy for output, the cooling module employs a separated gravity flat heat pipe for heat exchange and takes excess heat of the thermoelectric conversion module, the cooling module comprises a heat pipe flat evaporator arranged at the external part of the thermoelectric conversion module in a surrounding manner and a condenser positioned above the heat pipe flat evaporator, the inner part of the heat pipe flat evaporator is provided with a liquid-phase cooling working medium used for receiving excess heat of the thermoelectric conversion module and performing boiling phase-changing evaporation, the excess heat is changed into gas phase, the condenser and the heat pipe flat evaporator are arranged in a separate manner and connected via a pipeline, and the condenser is used for condensing the received gas-phase cooling working medium into liquid phase. According to the system, the separated gravity flat heat pipe is employed for heat radiation and cooling of a photovoltaic cell, the temperature uniformity is improved, the system is applicable to the requirement of power supply of spacecraft and ground remote areas, and the application range is wide.

Description

technical field [0001] The invention relates to a thermoelectric direct conversion device, in particular to a thermal photovoltaic power generation system using a separate heat pipe as a heat dissipation platform, capable of supplying power to a space vehicle. Background technique [0002] The thermal photovoltaic system heats the radiator through heat sources (including isotope energy, solar energy, combustion, etc.), and effectively modulates the radiation band through the radiator to obtain high conversion efficiency. The principle is: heat the radiator through the heat source to make it reach a higher temperature, so as to emit radiant energy to the outside; set a spectral filter between the radiator and the photocell, so that the radiant energy within the range of the battery's convertible band can pass through the filter The filter reaches the photocell, and is converted into electrical energy by the photocell for external output; while the energy that the photocell ca...

AI Technical Summary

Problems solved by technology

However, thermal photovoltaic technology is still in the stage of laboratory development, and most of the prototypes are cooled by water cooling or air cooling, and the cooling effect has certain limitations.

When the temperature of the radiator reaches above 1000°C, it is difficult to control the temperature of the photovoltaic cell below 50°C, and it is not suitable for space vehicle applications

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