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Journal of Enhanced Heat Transfer

Theory and Application in High Performance Heat and Mass Transfer

ISSN for PRINT: 1065-5131

Institutional price:	$577.00
Issues per year:	4

Best Paper Award Selection - Editorial Board Site

2005, Volume12

104 pages

DOI: 10.1615/JEnhHeatTransf.v12.i4

Issue price - $138.00

Experimental Study of the Dynamic Heat Transfer Performance of a Coaxial Thermosyphon

Jian-Hui Yang
College of Physical Sciences, Graduate School, Chinese Academy of Sciences, Beijing 100049; and Technical Institute of Physics and Chemistry, CAS, P.O. Box 2711, Beijing 100080, China

Qing Li
Technical Institute of Physics and Chemistry, CAS, P.O. Box 2711, Beijing 100080, China

Wen-Qiang Lu
Division of Thermal Science, Department of Physics, The Graduate School of the Chinese Academy of Sciences, Beijing, People's Republic of China

Zheng-Yu Li
Cryogenic Laboratory, Huazhong University of Science and Technology, Wuhan, 430073, China

Qiang Li
Technical Institute of Physics and Chemistry, CAS, P.O. Box 2711, Beijing 100080, China

Yuan Zhou
Technical Institute of Physics and Chemistry, CAS, P.O. Box 2711, Beijing 100080, China

ABSTRACT

A two-phase thermosyphon with coaxial riser and down-comer was experimentally investigated. The effects of heating rate, transfer tube length, charging capacity, area ratio of riser and down-comer on the performance are tested to gain insight into the natural circulation in the coaxial thermosyphon. The results showed that the presented coaxial thermosyphon has stronger heat transfer ability and dynamic performance advantages relative to the natural circulation in a conventional single-tube thermosyphon.