Heat pipe heat transfer performance test device and testing method thereof

Abstract

The invention relates to a heat pipe heat transfer performance test device and a testing method thereof, which belong to the technical field of heat transfer, and comprise heating equipment (1), a to-be-tested heat pipe (2), a thermoelectric conversion module (3), a cold source system (4), an electrical parameter measuring system (5), an electronic computer (6), a temperature measuring system (7),a thermal insulation material (8) and a transition module (9). During testing, heat is firstly transferred from the heating equipment to the evaporation section of the to-be-tested heat pipe; furthertransferring to a heat insulation section and a condensation section; then the signals are transmitted to the transition module and the thermoelectric conversion module; the real-time conversion condition of the thermoelectric conversion module is measured through the electrical parameter measurement system and the electronic computer, so that the heat transfer capacity can be calculated, the temperature of each temperature measurement point of the heat pipe to be measured is measured in real time through the temperature measurement system, and the heat transfer performance of the heat pipe can be calculated by combining the test data with the size parameters of the heat pipe. The method has the advantages of simple test equipment, convenient test, high test precision and the like.

Description

technical field [0001] The invention relates to a heat transfer performance testing device of a heat pipe and a testing method thereof, belonging to the technical field of heat transfer. Background technique [0002] The heat pipe is a device that uses the principle of phase change to transfer heat efficiently. The equivalent thermal conductivity of the heat pipe is much greater than that of copper, aluminum and other metal heat-conducting materials. It is known as a heat-conducting "superconductor". It is used in spacecraft thermal control and electronic equipment. It has important applications in many fields such as heat dissipation. [0003] The performance of heat conduction is usually characterized by thermal conductivity (also known as thermal conductivity). Thermal conductivity means that under stable heat transfer conditions, the temperature difference between the two sides of a material (or device) with a thickness of 1m is 1K (or 1°C), the heat transferred through...

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Problems solved by technology

[0018] Because the mass flow rate of the cooling medium often has a relatively large error during the test, there is a certain fluctuation in the inlet temperature, and there is a certain error in the measurement of the inlet temperature and the outlet temperature, so the total error is often relatively large

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