HEAT TRANSFER ENHANCEMENT IN TUBULAR HEAT EXCHANGER BY USING TWISTED TAPES WITH VARYING ALTERNATE AXIS LENGTH WITH AL2O3/WATER NANOFLUID

Authors

  • PRITAM M. JADHAV Govt. College of Engineering, Karad
  • GIRISH PATIL Govt. College of Engineering, Karad
  • JAYPAL MALI Govt. College Of Engineering, Karad
  • Dr. R.M.Warkhedkar Govt. College Of Engineering, Karad

Keywords:

Heat transfer enhancement, friction factor,, swirl flow,, twisted-tape

Abstract

Heat transfer enhancement in a tube using twisted tape with alternate axes (TA) at different alternate lengths (in terms of alternate length to twist length ratio, l/y = 0.5, 1.0, and 1.5) and Al2O3/water nanofluid have been experimentally investigated.The concentration of nanofluid was varied from 0.05 to 0.15% by volume while the twistratio (y/W) of 3 and 4 were used. The twisted tapes with alternate lengths as well as a typical twisted tape were tested for Reynolds number varying from 5000 to 20,000. The results show that Nusselt number enhanced with increase in Reynolds number and concentration of nanofluid.Also the Nusselt number and friction factor obtained were increased with decreasing alternate length (l) and twist ratio of twisted tapes.

Downloads

Published

2021-03-27

Issue

2016: ICITER

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0 DEED).

You are free to:

  1. Share — copy and redistribute the material in any medium or format
  2. The licensor cannot revoke these freedoms as long as you follow the license terms.

Under the following terms:

  1. Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  2. NonCommercial — You may not use the material for commercial purposes .
  3. NoDerivatives — If you remix, transform, or build upon the material, you may not distribute the modified material.
  4. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Notices:

You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation .

No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.

 

Rights of Authors

Authors retain the following rights:
1. Copyright and other proprietary rights relating to the article, such as patent rights,
2. the right to use the substance of the article in future works, including lectures and books,
3. the right to reproduce the article for own purposes, provided the copies are not offered for sale,
4. the right to self-archive the article.