| 冯应军,廖钟云滕,赵振刚.平板微热管汽流特性优化[J].电子测量与仪器学报,2022,36(9):118-124 |
| 平板微热管汽流特性优化 |
| Optimization of vapor flow characteristics of flat micro-heatpipe with copper foam suction core |
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| DOI： |
| 中文关键词: 平板微热管 气流通道 蒸汽流量 热阻 |
| 英文关键词:flat micro-heat pipe airflow channel steam flow thermal resistance |
| 基金项目:国家自然科学基金（62162035）项目资助 |
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| 摘要点击次数: 860 |
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| 中文摘要: |
| 为进一步提高平板微热管(FMHP)的传热效率,采用模拟仿真和实验研究的方法,对比研究了不同横梁结构的气流通
道对平板微热管气体流动特性和传热性能的影响。 在仿真软件中,气流通道入口处压力为 50 Pa 的条件下,时间为 1 s 时 4 种
结构通过的气体流通量分别是 7. 451 6、21. 915 3、19. 239 2、23. 192 8 m
3
。 实验工质为甲醛,充液率为 80% ~ 100%,热量输入为
0. 5~ 2 W。 实验结果发现,弧形结构的气流通道更有利于降低平板微热管的热阻,提高传热能力。 充液率为 100%时,RSCFMHP、RMC-FMHP 、CSC-FMHP、CMC-FMHP 的热阻分别是 10. 137 5、9. 125、9. 575、8. 887 5 ℃ / W。 CMC-FMHP 的热阻相比较
于 RSC-FMHP、RMC-FMHP 、CSC-FMHP 的热阻,分别下降了 1. 25、0. 237 5、0. 687 5 ℃ / W。 |
| 英文摘要: |
| In order to further improve the heat transfer efficiency of flat plate micro hearts, the effects of airflow channels of different
beam structures on gas flow characteristics and heat transfer performance of flat plate micro heat pipes are compared and studied by
simulation and experimental research. In the simulation software, the gas flow through the four structures at a time of 50 Pa at the inlet
pressure of the airflow channel is 7. 451 6, 21. 915 3, 19. 239 2 and 23. 192 8 m
3
, respectively. The experimental working medium is
Methanol, the liquid filling rate is 80% ~ 100%, and the heat input is 0. 5~ 2 W. Experimental results show that the airflow channel of
the arc structure is more conducive to reducing the thermal resistance of the plate micro heat and improving the heat transfer capacity. At
a filling rate of 100%, the thermal resistance of RSC-FMHP, RMC-FMHP, CSC-FMHP, and CMC-FMHP is 10. 137 5, 9. 125, 9. 575,
and 8. 887 5 ℃ / W, respectively. Compared with the thermal resistance of RSC-FMHP, RMC-FMHP, and CSC-FMHP, the thermal
resistance of CMC-FMHP decreased by 1. 25, 0. 237 5 and 0. 687 5 ℃ / W, respectively. |
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