Thermal management system and thermal management method for high-altitude unmanned aerial vehicle fuel cell module

Abstract

The present invention provides a thermal management system and a thermal management method for a high-altitude unmanned aerial vehicle fuel cell module, and belongs to the field of aviation spacecraftenergy source systems. According to the present invention, the high-altitude unmanned aerial vehicle fuel cell module comprises a fuel cell reactor, an oxygen supply system and a hydrogen supply system, the thermal management system comprises a heat exchanger and a heat dissipation system, one part of the waste heat generated by the fuel cell reactor heats hydrogen and oxygen through the heat exchanger, the other part of the waste heat generated by the fuel cell reactor heats the environmental space at which the fuel cell reactor is positioned, the fuel cell reactor is an air-cooled fuel cellreactor or a liquid-cooled fuel cell reactor, and the air-cooled fuel cell reactor comprises a closed air-cooled fuel cell reactor and an open air-cooled fuel cell reactor.

Description

technical field [0001] The invention belongs to the field of aerospace vehicle energy systems, and in particular relates to a thermal management system and method for a high-altitude unmanned aerial vehicle fuel cell module. Background technique [0002] Fuel cell is a new energy power generation device that converts chemical energy into electrical energy. Its hydrogen fuel source is sufficient and cheap, with high energy density, high power generation efficiency, stable performance, no safety hazards and no pollution in the product. It is widely used in civilian and military applications. product. As the auxiliary power supply of the high-altitude UAV power supply system, the fuel cell can provide it with long-term power demand and reduce the weight of the power supply system. [0003] Fuel cells have strict requirements on the working environment. At an altitude of 5,000 meters above the ground, the temperature is -10 degrees Celsius, and the temperature drops by 6 degree...

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Problems solved by technology

[0005] The patent No. 200910073442.8 is applicable to the closed cycle fuel cell system of AUV, which has a complete water heat exchange cycle system, but it can only ensure the ambient temperature of the fuel cell reactor and the cooling of the fuel cell reactor, and does not consider the hydrogen and hydrogen in the low temperature environment. The volume and weight of the oxygen heating and power supply system are not suitable for the thermal management system of the fuel cell power supply module of the high-altitude UAV

[0006] Patent No. 201510215700.7 provides a self-thermal management system and its control method, in which a water tank with a heating device, a cooling water circulation pump, a radiator and a temperature sensor can realize heat dissipation and cooling of a fuel cell reactor, but the thermal management The system cannot meet the heating of oxygen and hydrogen and the insulation of the overall environment

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