Impacts of Fins on The Heat Transfer Characteristics in A Shell and Cone-Shaped Coil Heat Exchanger

Ausaf Ahmad Usmani; Pankaj Shrivastava; Shivendra Singh

doi:10.69968/ijisem.2025v4i1106-117

Authors

Ausaf Ahmad Usmani Research Scholar, Department of Mechanical Engineering, Corporate Institute of Science & Technology, Bhopal
Pankaj Shrivastava Asst. Prof., Department of Mechanical Engineering, Corporate Institute of Science & Technology, Bhopal
Shivendra Singh Asst. Prof., Department of Mechanical Engineering, Corporate Institute of Science & Technology, Bhopal

DOI:

https://doi.org/10.69968/ijisem.2025v4i1106-117

Keywords:

Heat transfer, Shell and tube heat exchanger, shell and cone coil heat exchanger, Computational fluid analysis

Abstract

In shell-and-coil heat exchangers, cone coils are a more effective choice for better heat transfer than plain cone coils because they have a bigger surface area and create more turbulence, which increases the heat transfer rate. This study uses numerical analysis to assess the effects of using two different fins (numbers two and three) attached to the outside of a "cone-shaped coil tube in a shell-and-coil tube heat exchanger" while taking different cold water entry velocities into account. The finite volume approach-based numerical simulations are carried out using ANSYS Fluent. The numerical results obtained showed that the heat transmission is increased when the fins are attached to the cone coil's outside surface. There are five instances in this research, with two or three fins attached to the cone coil's outer surface and cold-water input velocities of 1.4 and 1.0 m/s. Based on all scenarios' numerical findings, the most optimal case was taken into consideration. Both case 3, and case 5 show the beast result in terms of rate of heat transfer and outlet temperature of cold water respectively. Case 3 shows that the maximum rate of heat transfer of 0.47W and case 5 shows that the maximum cold water outlet temperature of 311.17 K.

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