An experimental study on evaporation/boiling heat transfer in sintered porous wick

作者：Sun, Zhen; Hong, Fang Jun; Zheng, Ping

来源：Journal of Engineering Thermophysics, 2011, 32(10): 1745-1748.

• Distilled water
• Heat transfer model
• Maximum heat transfer
• Porous wicks
• Sintered porous wicks
• Volumetric porosity

An experimental setup was designed and established to study the evaporation/boiling heat transfer in particle sintered porous wick under the working condition of heat pipe. The effects of particle size as well as the thickness and volumetric porosity of porous wick on evaporation/boiling heat transfer were investigated using distilled water as working media. It was found that for the fixed particle size and porosity, there exists an optimal wick thickness to achieve the maximum heat transfer coefficient. For the fixed thickness of porous wick, there is an optimal porosity when the heat flux is relatively low, however, the smaller the porosity is, and the higher the heat transfer coefficient is when heat flux is relatively high. An evaporation/boiling heat transfer model was also summarized to give plausible explanations of experimental results.

• 出版日期2011
• 单位上海交通大学