Performance Evaluation of Heat Exchangers in a Polyethylene Plant
AbstractThis paper evaluates the performance of three heat exchanger units (2-E-2301, 3-E-901 and 3-E-401) in a polyethylene plant. Steady state monitoring and direct collection of data from the equipment in the plant were performed and the data were analyzed by using energy equations to determine the overall heat transfer coefficient, heat duty, temperature and pressure range of hot and cold fluids, capacity ratio and effectiveness. The results show that for 2-E-2301, the overall heat transfer coefficient is over 50 percent less than the design figure and the heat duty is over 75 percent than the design figure. For the 3-E-901 the heat duty and the overall heat transfer are over 75 percent less than the design figure which was traceable to fouling. This affected the effectiveness, capacity ratio and temperature range of the hot and cold fluid. For the 3-E-401, the heat duty was found to be within the limit of design figure. The temperature difference in the hot fluid side and the capacity ratio were within the limits of the design figure. Thus, the results show qualitative performance evaluation of the heat exchangers.
E.A.Ogbonnaya, “Maintenance optimization of a marine heat exchanger subject to fouling,” Journal of Emerging Trend in Engineering and Applied Science (JETEAS), vol.1 no 2 pp. 161-168, 2010.
F.O.Jegede and G.T. Polley, “Optimum heat exchanger design,” Transactions of the institution of Chemical Engineers 70 (Part A), pp. 133-141, 1992.
M.Kelvin “Increasing Heat Exchanger Performance” Procurement of Bryan Research and Engineering incorporated, Bryan, Texas, 2006, pp. 1-13.
Y. Hong, S.Park, Y.Choi, “A numerical study of the performance of a Heat Exchanger for a Miniature Joule- Thomson Refrigerator,” Proceedings of the 15th International Cryocooler Conference, University of Wiscosin WI53706, 2009, pp.1-13.
C.W.M .van der Geld and J.M.W.M., Schoonen “Design Improvement of a Shell and Tube Heat Exchanger based on practical experience and Numerical Analysis,” Faculty of Mechanical Engineering. Eindhoven University of Technology, Netherlands, 1988.
Y.M. Huang, “Study of unsteady flow in a heat exchanger by method of characteristics,” J. Pressure Vessel Technol, vol. 114, pp. 459, 1992.
K.H.Othman, “Computional Fluid Dynamic simulation of Heat Transfer in Shell and Tube Exchanger,” B.Sc project, Dept. Chemical and Natural Resources Engineering,Univ. of Malaysia, 2009.
R. L.Corneliseen, Thermodynamic and sustainable development: The use of exergy analysis and the reduction of irreversibility. FEBODRUK BV, Netherlands: Enschede, 1997, pp 23-32.
H.Dardour, “Numerical Analysis of Plate Heat Exchanger Performance in Co-current fluids flow configuration,” World Academy of Science, Engineering and Technology, 2009.
D.J. Kukulka, “Evaluation of surface coating on Heat Exchangers,” A study at the Great Lakes Research Centre of the University of New York College at Buffalo New York 14222 USA, 2008.
D. Zimparov, “Performance Evaluation of Tube in-Tube Heat Exchanger with Heat Transfer Enhancement in the Annulus,” Original Scientific paper, 2006.
Copyright (c) 2016 International Journal of Engineering and Technology Innovation
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Submission of a manuscript implies: that the work described has not been published before that it is not under consideration for publication elsewhere; that if and when the manuscript is accepted for publication. Authors can retain copyright in their articles with no restrictions. Also, author can post the final, peer-reviewed manuscript version (postprint) to any repository or website.
Since Jan. 01, 2019, IJETI will publish new articles with Creative Commons Attribution Non-Commercial License, under Creative Commons Attribution Non-Commercial 4.0 International (CC BY-NC 4.0) License.
The Creative Commons Attribution Non-Commercial (CC-BY-NC) License permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.