Ground normal-pressure equivalent thermal test method for space radiation heat exchange law

Abstract

The invention belongs to the technical field of a spacecraft thermal test, and relates to a ground normal-pressure equivalent thermal test method for the space radiation heat exchange law. Through the invention, the shortcoming that the simulation of the space radiation heat exchange law can not be realized in the ground normal-pressure environment can be overcome, and the simulation of the cooling law of a space radiator can be realized. In the invention, the basic working principle is that the cooling heat flows are equivalent, namely that the cooling heat flow of a ground cooling system is equal to that of a space cooling system; and under the condition that the ground cooling system and the space cooing system have the same inlet temperature, if the outlet temperatures of the branches of the two cooling systems are kept consistent, the cooling heat flows of the two systems can be deemed to be equivalent according to the principle of energy conservation.

Description

technical field [0001] The invention belongs to the technical field of spacecraft heat tests, and relates to a ground normal-pressure equivalent heat test method for space radiation heat transfer law. Background technique [0002] The fluid circuit thermal control technology driven by a mechanical pump has integrated heat collection, heat transmission, heat utilization and heat dissipation capabilities, and has a simple structure, good robustness, and relatively mature technology. In addition, due to its active control ability, it is very adaptable, easy to realize modular design, and can realize flexible design and assembly to a certain extent, and has been successfully applied on many spacecraft at home and abroad. As a relatively mature spacecraft active thermal control system, the fluid loop thermal control system usually consists of two parts: the controller and the loop system. In order to realize its reliable application in the spacecraft thermal control system, the c...

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Problems solved by technology

[0005] In view of the above problems, the present invention proposes a ground normal-pressure equivalent heat test method for the space radiation heat transfer law, which can overcome the inability to realize the simulation of the space radiation heat transfer law in the ground normal pressure environment, and realize the simulation of the space radiator heat dissipation law

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