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http://dx.doi.org/10.3795/KSME-B.2007.31.10.823

Characteristic Studies on Loop Heat Pipe with Micro Ceramic Wick  

Park, Jong-Chan (충북대학교 기계공학부)
Lee, Chung-Gu (충북대학교 기계공학부)
Rhi, Seok-Ho (충북대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.31, no.10, 2007 , pp. 823-831 More about this Journal
Abstract
This paper presents the experimental and simulation study of a loop heat pipe (LHP) that can be applied to present electronics, space missions and thermal control systems. The present experimental study was carried out employing sintered alumina ceramic wick ($d=2.96\;{\mu}m$, ${\phi}=0.61$). High purity R-134a, R-22 and water were also used as alternative working fluids in addition to ammonia. The experimental study showed that the maximum heat transfer performance for the test LHP in the vertical top heating mode was over 100 Watts when ammonia was used as the working fluid. The simulation results have been compared with the experimental results to validate a simulation model based on the thermal resistance network that was developed to evaluate the performance of LHPs, focusing on their prospective applications in electronics. The simulation model is based on the loop overall energy, mass, and momentum balance. The simulation program can predict the effects of various parameters which affect the performance of LHP within 5% compared with the experimental results.
Keywords
Loop Heat Pipe; Heat Transfer; Ceramic Wick;
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Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 0
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1 Boo, J. H. and Chung, W. B., 2005, 'Experimental Study on the Thermal Performance of a Small-scale Loop Heat Pipe with Polypropylene Wick,' KSME Int. J., Vol. 19, No. 4, pp. 1052-1061   과학기술학회마을   DOI   ScienceOn
2 Gorring, R. L., and Churchill, S. W., 1961, 'Thermal Conductivity of Heterogeneous Materials,' Chem. Eng. Progr., Vol. 57, No. 7, pp. 53-59
3 Kim, J., and Golliher, E., 2002, 'Steady State Model of a Micro Loop Heat Pipe,' 18th IEEE SEMI-THERM Symposium, pp. 137-144   DOI
4 Gane, C. R., Oliver, A. J., Soulsby, D. R. and Stephenson, P. L., 1983, 'Numerical Solution of Coupled Conduction-Convention Problems using Lumped - Parameter Method,' Proceeding of the Numerical Methods in Heat Transfer,' Vol. II, Wiley, New York, pp. 227-274
5 Maydanik, Y. F., 2005, 'Loop Heat Pipe,' Applied Thermal Engineering, pp. 635-657   DOI   ScienceOn
6 David, A. W., 1994, 'Loop Heat Pipe-Their Performance and Potential,' SAE Technical Paper, No. 941575
7 Bazzo, E. and Riehl, R. R., 2003, 'Operation Characteristics of a Small Scale Capillary Pumped Loop,' Applied Thermal Engineering, pp. 687-705   DOI   ScienceOn
8 Muraoka, F. M. Ramos, V. V., 1998, 'Experimental and Theoretical of Capillary Pumped Loop with a Porous Element in the Condenser,' Int. J. Heat Mass Transfer 25, pp. 1085-1094   DOI   ScienceOn
9 Faghri, A., 1995, 'Heat Pipe Science and Technology,' Tayler & Francis, Washington, USA
10 Whalley, P. B., 1987, 'Boiling, Condensation, and Gas-Liquid Flow,' Oxford University Press, Oxford, UK. pp. 124-135
11 Bergles, A. E. and Rohsenow, W. M., 1964, 'The Determination of Forced Convection, Surface Boiling Heat Transfer,' ASME Journal of Heat Transfer, Vol. 86, pp. 365-372   DOI
12 ASHRAE, 1998, Refrigerants, ASHRAE Handbook-1998 Fundamentals, American Society of Heating, Refrigerating, and Air-Conditioning Engineers Inc., Atlanta