Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (3): 58-61,66.

• Chemistry & Chemical Engineering • Previous Articles     Next Articles

Heat-Transport Capability of Pulsating Heat Pipes for Microcapsule Fluid

Wang Shuang-feng  Lin Zi-rong  Zhang Wei-bao   

  1. Key Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2008-04-24 Revised:2008-08-29 Online:2009-03-25 Published:2009-03-25
  • Contact: 汪双凤（196．4-），女，教授，博士生导师，主要从事多相流动与传热、微小尺度热管技术与热声效应的研究． E-mail:sfwang@sent．edu．cn
  • About author:汪双凤（196．4-），女，教授，博士生导师，主要从事多相流动与传热、微小尺度热管技术与热声效应的研究．
  • Supported by:

    国家基金广东省联合基金重点项目（U083402）

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Abstract:

A four-turn pulsating heat pipe （PHP） was made from a copper tube with its outer diameter of 2. 5 mm and inner diameter of 1.3mm. The startup characteristics of the PHP were then investigated at various liquid-filling rates of 40% -80%, respectively with 3% FS-39E microcapsule fluid, ethanol and water as the working fluids. Moreover, the effects of working fluid and liquid-filling rate on the heat-transport capability were analyzed. The re- suhs show that the startup of PHP is related to the liquid-filling id, and that, as compared with ethanol and water, 3% FS-39E range of PHP, and particularly high heat-transport capability. at a high liquid-filling rate, the rate, the thermal driving force and the working flumicrocapsule liquid may result in a broader working PHP possesses excellent startup characteristics and

Key words: pulsating heat pipe, liquid-filling rate, microcapsule fluid, heat-transport capability