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International Heat Transfer Conference 13

ISBN Imprimir: 1-56700-226-9 (CD)
ISBN En Línea: 1-56700-225-0


DOI: 10.1615/IHTC13.p22.380
page 9

Shuangfeng Wang
Key Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, Guangdong, PR China

Shigefumi Nishio
Key Laboratory of Enhanced Heat Transfe and Energy Conservation, Ministry of Education, School of Chemical and Energy Engineering, South China University of Technology, China; and Institute of Industrial Science and Technology, University of Tokyo, Japan


Closed Loop Oscillating Heat Pipe (CLOHP) has been proven solution for electronic cooling and waste heat recovery. However, the operating mechanism of CLOHP is not well understood and the present state of art cannot predict required design parameter for a given task. In present study, an experimental investigation as well as a simple numerical simulation was executed on a micro scale CLOHP. The tested pipe, consisting of 12 turns, was made of cupper and had an inner diameter of 0.5mm. It had a condenser, adiabatic and evaporator section of unequal length. The effect of cooling section length (Lc) was examined while the uniform heat flux was put into the heating section and fluid charge ratio was 50%, 60% and 70%, respectively. It is found that the CLOHP can operate at both bottom heat mode and top heat mode and it is feasible to make a micro scale CLOHP with a smaller inner diameter.

IHTC-13 Digital Library

Measurement of fluid temperature with an arrangement of three thermocouples FLOW BOILING OF A HIGHLY VISCOUS POLYMER SOLUTION