Analysis of Heat Transfer in a Heat Exchanger with Triangular Fins Using Finite Element Modeling

Authors

  • Ashis Acharjee Assistant Professor, Dept. of Mechanical Engineering, National Institute of Technology, Agartala, India.
  • Abhik Majumder Assistant Professor, Dept. of Mechanical Engineering, National Institute of Technology, Agartala, India.
  • Prasun Chakraborti Professor, Department of Mechanical Engineering and Dean (P & D), NIT, Agartala, Tripura, India

DOI:

https://doi.org/10.37591/jorachv.v10i3.1534

Keywords:

Heat Exchanger, Fins, Radiation, Free and Forced convection, ANSYS Multi-physics.

Abstract

The influence of radiation and convection on a catalytic reactor's triangular heat exchanger fins are examined. Heat escapes from the surface by radiation and convection having being transported by conduction throughout the fin. Convection and radiation enable the fin's tip to lose heat, whereas the base of the fin is kept at a constant high temperature. One of the walls is taken for consideration because of its symmetry and ease of analysis. In order to determine the temperature and heat transfer rate along the fin, a universal finite difference formulation is devised, utilizing a basic model to account for both forced and free convection as well as radiative heat transfer. In this work, air is used as the cooling medium, and its convection heat transfer coefficient is assumed to varies between (10–150)W/m2.K. The findings generated by the ANSYS16 finite element code are compared with the temperature distribution of a reactor's surface, which is predicted using the finite difference proximity. In the case of a forced convection system, radiation can be omitted since temperature profiles of radiation exhibit a variety of features and it becomes apparent that the radiation term has no effect on temperature profiles. Yet in the case of a free convection system, it has a major impact. Yet there is a good agreement between the findings of the numerical solution and the ANSYS Multi-physics results about the validity overall thermal results for both forced and free convection and radiation effects.

References

Bird, Stewart, lightfoot, (2000)“Transport Phenomena”, John Wiley & Sons, p. 265-309.

Donglyoul shin,(2004)," Thermal Design and Evaluation methods for Heat Sink" E-CIM Team,

Juan D, Hai-Tao Z. Numerical simulation of a plate-fin heat exchanger with offset fins using porous media approach. Heat and Mass Transfer. 2018 Mar;54(3):745-55.

Elsworth,(1999) “Course Notes and Resources : Mathematical Modeling of Energy and Geo-Environmental Systems”

Saini, Manish,(2000) “Modeling and optimization of air cooled plane fin aluminum heat sinks used in computer cooling”, MSc Thesis, Pennsylvania State University.

S. Lee,(1994), "Optimum Design and Selection of Heat Sinks", IEEE SEMITHERM Symposium.

Welty, Wicks, Wilson,(1997) “Fundamentals of Momentum, Heat, and Mass Transfer, 3rd edition”, John Wiley & Sons, p.252-295.

Yunus A. Çengel(2007)'' Heat Transfer A practical Approach" Mc GRAW-HILL BOOK COMPANY, p.26

Karanth VK, Murthy K. Numerical study of heat transfer in a finned double pipe heat exchanger. World Journal of Modelling and Simulation. 2015;11(1):43-54.

AlEssa AH. One-dimensional finite element heat transfer solution of a fin with triangular perforations of bases parallel and towered its base. Archive of Applied Mechanics. 2009 Aug;79:741-51.

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Published

2024-03-30

Issue

Vol. 10 No. 3 (2023)

Section

Articles

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