Experimental Study for the Effect of the Modified Twisted Tape Insert on Heat Transfer Through Circular Tube

9 Pages Posted: 12 Feb 2018

See all articles by Yogesh Bajirao Patil

Yogesh Bajirao Patil

Vishwakarma Institute of Technology, Department of Mechanical Engineering, Students

J.P. Shete

Vishwakarma Institute of Information Technology (VIIT)

Date Written: December 21, 2017

Abstract

This work presents an experimental study on the mean Nusselt number, friction factor and enhancement efficiency characteristics in a circular tube. This was investigated for four twist ratios (Y= 2.3, 2.9, 3.5, and 4.1) The obtained results show that the mean Nusselt number and the mean friction factor in the tube with Plain, Perforated, perforated with notch type twisted tapes inserts increase with decreasing twist ratios (Y). Subsequently, an empirical correlation also was formulated to match with experimental results with ±4.22% variation for the Nusselt number and 5.59% for the friction factor. Also, the experimental results show higher values of heat transfer for perforated with notch type insert for higher values of Re. And shows lower values of friction factor for higher values of Re. Maximum F is observed for the insert with perforation with notch having Y=2.3. The average F increases 5 to 7 times than that of the plain tube and the heat transfer enhancement ranges from 2.9 to 3.3 times that of the plain tube over the range of Re 10000 to 16000 with air as working fluid.

Keywords: Heat Transfer, Friction Factor, Nusselt Number, Twisted Tape

Suggested Citation

Patil, Yogesh Bajirao and Shete, J.P., Experimental Study for the Effect of the Modified Twisted Tape Insert on Heat Transfer Through Circular Tube (December 21, 2017). International Conference on Advances in Thermal Systems, Materials and Design Engineering (ATSMDE2017). Available at SSRN: https://ssrn.com/abstract=3101281 or http://dx.doi.org/10.2139/ssrn.3101281

Yogesh Bajirao Patil (Contact Author)

Vishwakarma Institute of Technology, Department of Mechanical Engineering, Students ( email )

Pune
India

J.P. Shete

Vishwakarma Institute of Information Technology (VIIT)

Pune, Maharashtra
India

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