Method for power generation by satellite outer surface temperature gradient

Abstract

The invention discloses a device for power generation by satellite outer surface temperature gradient, and belongs to application of a thermoelectric power generation technology in the field of thermal control of a spacecraft. The device comprises first thermal isolation layers, heat conduction layers, second thermal isolation layers, solar cell panels, thermoelectric devices and energy collection circuits, wherein the first thermal isolation layers cover an outer surface of a satellite, the heat conduction layers cover the first thermal isolation layers, the second thermal isolation layers cover the heat conduction layers, the integrated solar cell panels are arranged on the second thermal isolation layers, the thermoelectric devices are embedded into the second thermal isolation layers, the energy collection circuits are connected with heat conduction devices, the thermoelectric device is embedded into the second thermal isolation layer below each solar cell panel, and one end of each thermoelectric device is connected with the other end of each solar cell panel and then is connected with the heat conduction layer. With the method for power generation by the satellite outer surface temperature gradient, energy sources of the satellite can be increased, the temperature of a sunny surface of the satellite can also be reduced, the temperature fluctuation of the outer surface of the satellite is reduced, and the influence of the temperature on the working efficiency of the integrated solar cell panel is reduced. The method has good application prospect in a moonlet.

Description

technical field [0001] The invention belongs to the application of thermoelectric power generation technology in the field of spacecraft heat control. Background technique [0002] After entering the 21st century, satellites are gradually showing their advantages of light weight, miniaturization, low cost, high functional density and cost performance, and have been rapidly developed and widely used. Now they have become an important part of space systems. [0003] The temperature on the sunny side of the satellite is relatively high under strong solar radiation, while the temperature on the backside is relatively low due to the absence of solar radiation. Excessive temperature on the outer surface of the satellite will affect the working efficiency of solar panels, and the uneven temperature of the whole star will cause thermal deformation of the satellite structure, affecting the accuracy of high-precision equipment in the satellite. [0004] Due to the small size, small h...

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Problems solved by technology

[0005] In order to solve the problem of excessive temperature difference and large temperature fluctuations on the outer surface of small satellites, and to increase the source of satellite energy, the present invention proposes a method for generating electricity using the temperature gradient on the outer surface of satellites, which is especially suitable for small satellites. such as micro and nano satellites

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