Heat Transfer Studies on Condensation Using Heat Pipes

Abstract:

This experimental study finds the effect of condensation on the thermal performance of heat pipe. Condensation heat transfer rate, heat transfer coefficient and variation of temperature over the heat pipe are measured at vertical and horizontal position of HP, by varying the steam-to-surface temperature difference. It is found that the condensation heat transfer rate for vertical position of heat pipe with CuO nanofluid is 2.07 times higher than the horizontal position, whereas the increase in heat transfer coefficient is 1.94 times. Using CuO nanofluid instead of deionized water in the heat pipe enhances the heat transfer rate and heat transfer coefficient by 1.25 and 1.42 times respectively for the vertical orientation.

• Periodical: Applied Mechanics and Materials (Volumes 592-594)
• Pages: 1617-1621
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.592-594.1617
• Online since: July 2014
• Authors: Punit Singh*, S. Venkatachalapathy, G. Kumaresan
• Keywords: Condensation, Heat Pipe, Heat Transfer Coefficient, Nanofluid

References

[1] E. Schmidt, W. Schurig, W. Sellschopp, Condensation of Water Vapor in Film-and Drop Form, in: Tech. Mech. Thermodyn 1(1930): 53-63.

[2] J.W. Rose, Dropwise condensation of mercury, in: International Journal of Heat and Mass Transfer 15. 7 (1972): 1431-1434.

DOI: 10.1016/0017-9310(72)90024-5

[3] P.J. Marto, D.J. Looney, J.W. Rose, A.S. Wanniarachchi, Evaluation of organic coatings for the promotion of dropwise condensation of steam, in: International journal of heat and mass transfer, 29(8) (1986): 1109-1117.

DOI: 10.1016/0017-9310(86)90142-0

[4] A.K. Das, G.B. Andeen, A. Kumar, H.P. Kilty, P.J. Marto, The use of an organic self-assembled monolayer coating to promote dropwise condensation of steam on horizontal tubes, in: Journal of heat transfer, 122(2) (2000), 278-286.

DOI: 10.1115/1.521465

[5] A. Bejan, A.D. Kraus, Heat transfer Data Book, John Wiley & Sons, Inc., (2003).

[6] R.S. Gaugler, U.S. Patent No. 2, 268, 747. (1942).

[7] S.W. Kang, W.C. Wei, S.H. Tsai, S.Y. Yang, Experimental investigation of silver nano-fluid on heat pipe thermal performance, in: Applied Thermal Engineering, 26(17) (2006) 2377-2382.

DOI: 10.1016/j.applthermaleng.2006.02.020

[8] N. Putra, W.N. Septiadi, H. Rahman, R. Irwansyah, Thermal performance of screen mesh wick heat pipes with nanofluids, in: Experimental Thermal and Fluid Science, 40 (2012), 10-17.

DOI: 10.1016/j.expthermflusci.2012.01.007