University of Tehran Press Journal of Computational Applied Mechanics 2423-6713 46 1 2015 01 01 Optimal Design of Shell-and-Tube Heat Exchanger Based on Particle Swarm Optimization Technique 21 29 53390 10.22059/jcamech.2015.53390 EN Seddigheh Jalilirad Department of Mechatronics Engineering, College of Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran Mohammad Hassan Cheraghali Department of Mechatronics Engineering, College of Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran Hossein Ahmadi Danesh Ashtiani Department of Mechatronics Engineering, College of Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran Journal Article 2014 10 17 The paper studies optimization of shell-and-tube heat exchangers using the particle swarm optimization technique. A total cost function is formulated based on initial and annual operating costs of the heat exchangers. Six variables – shell inside diameter, tube diameter, baffle spacing, baffle cut, number of tube passes and tube layouts (triangular or square) – are considered as the design parameters. The particle swarm optimization selects the parameters so that the system has minimum total cost. Although generalization is not possible for any case, for minimization of cost functions of the three different cases studied in this research, larger tube outer diameter, triangular layout, baffle cut equalling 0.25 of shell diameter and one pass for each tube result in optimum designs. The other two parameters show no fixed trend. https://jcamech.ut.ac.ir/article_53390_abd4500454af59721289ffa2bcba3180.pdf