CFD Analysis for Heat Transfer Augmentation Inside Plain and Finned Circular Tubes with Twisted Tape Inserts

Authors

  • Karamsi Sivalinga Prasad Naik  M.Tech Student, CAD/CAM, Department of Mechanical Engineering, PVKK Institute of Technology, Ananthapuramu, Andhra Pradesh, India
  • Haripriya. M  Assistant Professor, Department of Mechanical Engineering, PVKK Institute of Technology, Ananthapuramu, Andhra Pradesh, India
  • L. Balasubramanyam  HOD & Associate Professor, Department of Mechanical Engineering, PVKK Institute of Technology, Ananthapuramu, Andhra Pradesh, India

DOI:

https://doi.org//10.32628/IJSRSET196440

Keywords:

CFD, Heat Transfer Agumentation, Twisted Tape, Reduced Width Twisted Tape, Thermal Performance

Abstract

Computational fluid dynamic (CFD) studies were carried out by using the ANSYS FLUENT 13.0 to find the effects of twisted tape insert on heat transfer, friction loss and thermal performance factor characteristics in a circular tube at constant wall temperature. Simulation was performed with Reynolds number in a range from 800 to 10,000 using water as a working fluid. Four turbulent models are examined such as a standard k-?, RNG k-?, standard k-ω and SST k-ω and those compared with standard twisted tape correlations developed by Manglik and Bergles. Plain tube with four different full width twisted tape inserts (FWTT) of twist ratios (y = 2, 3, 4 and 5) were examined, based on constant flow rate Over the range of Reynolds number investigated, based on overall thermal performance factor (?) it is revealed that the plain tube with FWTT (? = 1.12-1.51 in laminar regime & 0.91 – 1.08 in turbulent regime) are suitable in laminar flow region and finned tube with RWTT (? = 0.58-0.91 in laminar regime & 0.83 – 1.31 in turbulent regime) are suitable for turbulent regime.

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International Journal of Scientific Research in Science, Engineering and Technology

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Published

2019-08-30

Issue

Volume 6, Issue 4, July-August-2019

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Research Articles

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How to Cite

[1]
Karamsi Sivalinga Prasad Naik, Haripriya. M, L. Balasubramanyam, " CFD Analysis for Heat Transfer Augmentation Inside Plain and Finned Circular Tubes with Twisted Tape Inserts, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 6, Issue 4, pp.307-311, July-August-2019. Available at doi : https://doi.org/10.32628/IJSRSET196440