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力学与实践 ›› 2000, Vol. 22 ›› Issue (2): 0-0.doi: 10.6052/1000-0879-f2000-046

• 论文 •    

水-甲醇混合工质两相闭式热虹吸管传热特性的研究

魏琪 袁朗   

  1. 江苏理工大学动力机械工程系
  • 收稿日期:2008-01-14 修回日期:1900-01-01 出版日期:2000-04-10 发布日期:2000-04-10

ON HEAT TRANSFER IN A CLOSED TWO-PHASE THERMOSIPHON WORKING WITH MIXTURE OF WATER AND METHANOL

  • Received:2008-01-14 Revised:1900-01-01 Online:2000-04-10 Published:2000-04-10

摘要: 对水-甲醇混合工质两相闭式热虹吸管的传热特性进行了实验研究.实验表明,水-甲醇混合工质热管与纯工质(水)热管之间,不同甲醇浓度的水-甲醇混合工质热管之间,以及在不同倾角条件下,热管轴向壁温分布均有较大差别.这是由于甲醇(易挥发组分)轴向浓度分布不同造成的.

Abstract: The heat transfer characteristics of a closed two-phase thermosiphon at different incline angles are experimentally investigated. The working fluid is a mixture of methanol and water with different ratios. The axial temperature distribution at the heating wall is much different from that in the case of one-component (water) working fluid. There is also a difference between heat pipes working with different mixture ratios. This is due to the axial distribution of methanol concentration.