Numerical investigation of heat transfer enhancement in a double pipe heat exchanger using tangential perforated ring turbulators

Authors

  • Ganga Chauhan Department of Thermal Engineering, Veer Madho Singh Bhandari Uttarakhand Technical University, Dehradun 248 007, Uttarakhand, India
  • Vijay Singh Bisht Department of Thermal Engineering, Veer Madho Singh Bhandari Uttarakhand Technical University, Dehradun 248 007, Uttarakhand, India
  • Prabhakar Bhandari Mechanical Engineering Department, School of Engineering and Technology, K.R. Mangalam University, Gurugram, 122 103, India
  • Sandeep Singh O.P. Jindal Global University, Sonipat 131 001, Haryana, India
  • Rahul Shukla Mechanical Engineering Department, IET Bundelkhand University, Jhansi 284 001, Uttar Pradesh, India
  • Lalit Ranakoti Department of Mechanical Engineering, Graphic Era Deemed to be University, Dehradun 248 002, Uttarakhand, India
  • Ankur Singh Bist Graphic Era Hill University, Bhimtal campus, Bhimtal 26 3136, Uttarakhand, India

DOI:

https://doi.org/10.24425/ather.2025.154191

Keywords

computational fluid dynamics, double pipe heat exchanger, perforated ring turbulators, tangent placed turbulator, thermo-hydraulic performance

Abstract

This research investigates the heat transfer and fluid flow characteristics of a double pipe heat exchanger enhanced with perforated turbulators. The study focuses on the effects of varying Reynolds numbers and geometric configurations, particularly the number of perforations in the inserts, on thermal performance. Using the finite volume method and Ansys Fluent simulations, the heat exchanger was analysed under different conditions, comparing the results with a smooth tube configuration. The findings reveal that the pitch ratio of 2.5 has shown the highest heat transfer capacity followed by pitch ratios of 4.5 and 6.5. Further, irrespective of relative pitch ratio, the ring with no perforations has shown the highest value of average Nusselt number and in the case of perforation, the open area ratio of 0.068 has yielded the best thermal performance.

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Published

2025-03-30

How to Cite

Chauhan, Ganga, et al. “Numerical Investigation of Heat Transfer Enhancement in a Double Pipe Heat Exchanger Using Tangential Perforated Ring Turbulators”. Archives of Thermodynamics, vol. 46, no. 1, Mar. 2025, pp. 177-84, doi:10.24425/ather.2025.154191.

Issue

Vol. 46 No. 1 (2025)

Section

Articles

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