| Citation: | WANG Z，PAN Y H，ZHAO R，et al. Effect of small inclination angle on heat transfer performance of Ω-shaped bending heat pipe[J]. Journal of Beijing University of Aeronautics and Astronautics，2024，50（7）：2314-2321 （in Chinese） doi: 10.13700/j.bh.1001-5965.2022.0603
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An experimental platform for studying the heat transfer performance of heat pipes was set up to investigate the effect of a small inclination angle on the heat transfer performance of Ω-shaped bending heat pipes. The temperature distribution, total thermal resistance, thermal conductivity, and maximum heat transfer power of heat pipes with different small inclination angles were analyzed in the experiment. The results show that the wall temperature uniformity of heat pipes with zero and negative inclination angles is better than that of heat pipes with positive inclination angles at the same heating power. The heat pipe with a positive inclination angle has the largest total thermal resistance. The total thermal resistance of heat pipes with zero and negative inclination angles is similar. The maximum heat transfer power of heat pipes with zero inclination angle is the highest. In installation and application, the heat pipe will inevitably face gravity inclination angle deviation. The research results indicate that the small inclination angle can affect the heat transfer performance of Ω-shaped bending heat pipes.
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