10.1007/s40095-019-0297-9

Numerical study of shell and tube heat exchanger with different cross-section tubes and combined tubes

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  • Mohammad Reza Saffarian1,
  • Farivar Fazelpour*2,
  • Mehrzad Sham3,
  1. Department of Mechanic, Faculty of Engineering, South Tehran Branch, Islamic Azad University, Tehran, IR
  2. Department of Energy Systems Engineering, Faculty of Engineering, South Tehran Branch, Islamic Azad University, Tehran, IR
  3. Faculty of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, IR
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Published in Issue 2019-02-12

How to Cite

Saffarian, M. R., Fazelpour, F., & Sham, M. (2019). Numerical study of shell and tube heat exchanger with different cross-section tubes and combined tubes. International Journal of Energy and Environmental Engineering, 10(1 (March 2019). https://doi.org/10.1007/s40095-019-0297-9
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Abstract

Abstract Shell and tube heat exchangers are used in various industrial processes, and are one of the most commonly used heat exchangers. A shell and tube heat exchanger with a 25% baffle cut was used in this study. Tubes of different cross-sections (circular, elliptical with an attack angle of 90° and elliptical with an attack angle of 0°) were studied. A combined model of a shell and tube heat exchanger with elliptical tubes with an attack angle of 90° and circular tubes was introduced. A heat exchanger with ellipsoidal tubes near the shell with an attack angle of 90° and circular tubes in the center of the shell showed the highest heat transfer compared with the shell and tube heat exchangers with circular tubes and elliptical tubes with an attack angle of 90° and 0°. The pressure drop in the tube and shell side was also investigated for all five cases in this study. The effect of the location of tubes on heat transfer was investigated. It was shown that tubes located near the shell have a greater impact on heat transfer compared with tubes located in the center of the shell.

Keywords

  • Shell and tube heat exchanger,
  • Elliptical tubes,
  • Circular tubes,
  • Heat transfer,
  • Pressure drop
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