COMPARATIVE ANALYSIS OF HEAT TRANSFER ENHANCEMENT WITH V-NOZZLE TURBULATORS

Authors

  • Shubhangi A. Manwatkar Department of Mechanical Engineering, ICEM Pune, Maharashtra, India

Keywords:

EXPERIENTSL SETUP, Schematic diagram of experimental heat transfer setup

Abstract

The effects of V-nozzle inserts on heat transfer and friction characteristics in a uniform heat flux tube are experimentally and numerically studied. The v-nozzle with pitch ratio 2.5 used. Experimental investigations have been carried out to study the effects of the V-nozzle turbulators on heat transfer augmentation, friction characteristics and enhancement efficiency, in a circular tube. It is found that using the V-nozzle can help to increase considerably the heat transfer rate at about 107% over the plain tube. A maximum gain of1.25 on enhancement efficiency is obtained for the pitch ratio used, PR=2.5 this indicates that the effect of the reverse/re-circulation flows can improve the heat transfer rate in the tube. Experimental error recorded is 2.8% for friction factor when it’s compared with Numerical result at the same Reynold No. In addition, correlations from the results are

Downloads

Published

2021-03-27

Issue

2019: IME

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.