A CFD ANALYSIS OF HELICAL BAFFLE VARIATION IN SHELL AND TUBE HEAT EXCHANGER

Author(s)

Abstract
Heat Exchanger has an important role in industry for successfull processes. The researches of heat exchanger focus on enhancement of heat transfer coefficient. Meanwhile the minimum pressure drop is also required to guarantee the subsequent process. Generally, those to requirements ae satisfied by the configuration of helical baffle. This work considers the helical baffle with different distance variation as well as mass flow rate inlet on the shell side. A CFD analysis is implemented for studying the variying distance of 0.15m, 0.1m, 0.075m, and 0.06m and with mass flow rate are 0.05kg/s, 0.1kg/s, and 0.2kg/s. The tube of staggered configuration is in triangular arrangement. In this research, turbulence model of k-ε realizable is used as a viscocity model, in parallel-flow configuration. The results show that the heat transfer coefficient is 469.05 W/m².K for 0.06 m distance and 0.2 kg/s inlet mass flow rate, the value of pressure drop is 46.47 Pa. It is concluded that the value between fluid flow and inlet mass flow rate is directly proportional with the value of heat transfer coefficient and pressure drop.

Keywords
Heat exchanger, helical baffle, mass flow rate, heat transfer coefficient, pressure drop

Cite this paper
Bayu E. Gustyawan, Gunawan Nugroho, Harsono Hadi, A CFD ANALYSIS OF HELICAL BAFFLE VARIATION IN SHELL AND TUBE HEAT EXCHANGER , SCIREA Journal of Mechanics. Volume 3, Issue 1, February 2018 | PP. 1-17.

References

[ 1 ]	F.P. Incropera, D.P. Dewitt, T.L. Bergman, A.S. Lavine, Fundamentals of Heat and Mass Transfer 7th Edition, John Wiley & Sons, 2011, USA.
[ 2 ]	T. Kuppan, Heat Exchanger Design Boo, 2000, Marcel Dekker.
[ 3 ]	J.P. Holman, Heat Transfer 10th Edition, Mc-Graw Hill, New York, 2010.
[ 4 ]	Y. Lei, Y. He, R. Li and Y. Gao, Effects of Baffle Inclination Angle on Flow and Heat Transfer of a Heat Exchanger with Helical Baffles, Chemical Engineering and Processing: Process Intensification, Vol. 47, Issue 12, 2008, pp. 2336–2345.
[ 5 ]	B. Peng, Q.W. Wang, C. Zhang, G.N. Xie, L.Q. Quo, Q.Y. Chen and M. Zheng, An Experimental Study of Shell and Tube Heat Exchangers with Continuous Helical Baffles, Journal of Heat Transfer, Vol. 129, 2007.
[ 6 ]	A.S. Ambekar, R. Sivakumar, N. Anantharaman and M. Vivekenandan, CFD simulation study of shell and tube heat exchangers with different Segment Configurations, Applied Thermal Engineering, Vol. 108, 2002, pp. 999–1007.
[ 7 ]	J. Zhang, Y. He, Y. and W. Tao, A Design and Rating Method for Shell and Tube Heat Exchanger with Helical Baffle, Journal of Heat Transfer 132 (5), 2010.
[ 8 ]	S.K. Shinde and M.H. Pancha, Comparative Thermal Performance Analysis of Segmental Baffle Heat Exchanger with Continous Helical Baffle Heat Exchanger using Kern Method, Int. J. Eng. Res. Appl., 2012.
[ 9 ]	E. Ozden, I. Tari, Shell Side CFD Analysis of a Small Shell and Tube Heat Exchanger, Energy Conversion and Management, Vol. 51, Issue 5, 2008, pp. 1004–10014.
[ 10 ]	T.J. Chung, Computational Fluid Dynamics, Cambridge University Press, 2002.