Mathematical Modeling Of Thermosyphon Heat Exchanger For Energy Saving

Volume 5, Issue 4, pp 271 - 279 Publication Date: December 30, 2012


Mohammad Reza Sarmasti Emami - Iran University of Science and Technology, Behshahr, Iran.


Waste heat recovery is very important, because not only it reduces the expenditure of heat generation, but also it is of high priority in environmental consideration, such as reduction in greenhouse gases. One of the devices is used in waste heat recovery is thermosyphon heat exchanger (THE). In this paper, theoretical research has been carried out to investigate the thermal performance of an air to air thermosyphon heat exchanger. This purpose is done by solving simultaneous principles equations. It was found that with implementation of targeted subsides plan in Islamic Republic of Iran, saving in gas oil consumption is very considerable by using this device.



[1] S. W. Chi, "Heat Pipe Theory and Practice", McGraw Hill, New York (1976).
[2] M.R. Sarmasti Emami, "Energy Recovery in Poultry Plants by Heat Pipe Heat Exchangers", the 6th International Chemical Engineering Congress and Exhibition, 16-20 November, 2009, Kish, Iran.
[3] M.R. Sarmasti Emami, S.H. Noie, R. Shokri, "Simulation and economical investigation of application of heat pipe heat exchanger in air condition systems", 10th National conference of Chemical Engineering, 2005, Zahedan, Iran.
[5] J.O. Tan, C.Y. Liu, Predicting the Performance of a Heat Pipe Heat Exchanger using the Effectiveness NTU Method, Int. J. Heat Fluid Flow, 11(4), p.376 (1990).
[6] B.J. Haung, J.T. Tsuei, A Method of Analysis for Heat Pipe Heat Exchangers, Int. J. Heat Mass Transfer, 28(3), p. 553(1985).
[7] A. Faghri, “Heat pipe Science and Technology”, Taylor & Francis, USA, (1995).
[8] F.P. Incropera, D.P. DeWitt, “Fundamentals of Heat and Mass Transfer”, 5th ed., John Wiley and Sons, New York, p.640 (2002).
[9] E. Azad, F. Geoola, A Design Procedure for Gravity-Assisted Heat Pipe Heat Exchanger, Heat Recovery System, Elsevier Science, p. 101 (1984).
[10] Dunn, P. D., and Reay, D. A., Heat pipes, 3rd ed., Pergamon Press, Oxford, U.K., 1994.
[11] A. Faghri, Heat pipe science and Technology, Taylor & Francis, Washington, D.C., 1995.
[12] Z. R. Gorbis, and G.A. Savchenkov, Low Temperature Tow-phase Closed Thermosyphon Investigation, proc. 2nd International Heat pipe Conf. Bologna, Italy, pp.37-45, 1967.
[13] M. Shiraishi, M. Yoneya, and A. Yabe, Visual study of operating limit in the Tow-Phase closed thermosyphone, proc. 5th international Heat Pipe Conf., 14-17 May, Tsukuba, Japan, pp. 11-17, 1984.