Abstract
The heat transfer performance of single loop pulsating heat pipe (PHP) under different filling rates (FR) was studied experimentally. The temperature oscillation characteristics of the outer wall of the tube, the start-up characteristics under different heating power and the heat transfer characteristics between the tube wall and the working fluid are analyzed. The results show that the evaporation section has the uniform temperature characteristic, the uniform temperature characteristic of the condensation section is related to FR and heating power, there is an obvious temperature change in the adiabatic section. At 50% FR, the working fluid is easier to start. At high power, the thermal resistance of phase change heat transfer between the tube wall and the working fluid has an obvious influence on the heat transfer performance, which cannot be ignored.
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More From: IOP Conference Series: Earth and Environmental Science
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