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 Use of algorithm of changes for optimal design of heat exchanger Tam S.C.1; Tam H.K.2; Chio C.H.1; Tam L.M.2 2010-08-24 Conference Name 2nd International Symposium on Computational Mechanics 12th International Conference on the Enhancement and Promotion of Computational Methods in Engineering and Science Source Publication AIP Conference Proceedings Volume 1233 Pages 857-862 Conference Date NOV 30-DEC 03, 2009 Conference Place Hong Kong & Macau, PEOPLES R CHINA Abstract For economic reasons, the optimal design of heat exchanger is required. Design of heat exchanger is usually based on the iterative process. The design conditions, equipment geometries, the heat transfer and friction factor correlations are totally involved in the process. Using the traditional iterative method, many trials are needed for satisfying the compromise between the heat exchange performance and the cost consideration. The process is cumbersome and the optimal design is often depending on the design engineer's experience. Therefore, in the recent studies, many researchers, reviewed in [1], applied the genetic algorithm (GA) [2] for designing the heat exchanger. The results outperformed the traditional method. In this study, the alternative approach, algorithm of changes, is proposed for optimal design of shell-tube heat exchanger [3]. This new method, algorithm of changes based on I Ching, is developed originality by the author. In the algorithms, the hexagram operations in I Ching has been generalized to binary string case and the iterative procedure which imitates the I Ching inference is also defined. On the basis of [3], the shell inside diameter, tube outside diameter, and baffles spacing were treated as the design (or optimized) variables. The cost of the heat exchanger was arranged as the objective function. Through the case study, the results show that the algorithm of changes is comparable to the GA method. Both of method can find the optimal solution in a short time. However, without interchanging information between binary strings, the algorithm of changes has advantage on parallel computation over GA. Keyword Book Of Change (i Ching) Genetic Algorithms Heat Exchanger Optimal Design DOI http://doi.org/10.1063/1.3452291 URL View the original Indexed By SCI Language 英语 WOS Research Area Engineering ; Mathematics ; Mechanics WOS Subject Engineering, Civil ; Engineering, Mechanical ; Mathematics, Applied ; Mechanics WOS ID WOS:000283003800147 Fulltext Access Citation statistics Document Type Conference paper Collection DEPARTMENT OF MATHEMATICSDEPARTMENT OF ELECTROMECHANICAL ENGINEERING Affiliation 1.Department of Mathematics, Faculty of Science and Technology, University of Macau, Macao, China2.Department of Electromechanical Engineering, Faculty of Science and Technology, University of Macau, Macao, China First Author Affilication Faculty of Science and Technology Recommended CitationGB/T 7714 Tam S.C.,Tam H.K.,Chio C.H.,et al. Use of algorithm of changes for optimal design of heat exchanger[C],2010:857-862.
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