Analysis of turbulent convective heat transfer from rectangular baffles by Taguchi method

B. Sahin*, A. Bayrakceken, E. Manay, I. Ates

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this study, the effects of the rectangular baffles mounted on the bottom surface of a heat exchanger on the heat and pressure drop characteristics were investigated using the Taguchi experimental-design method. Nusselt number and friction factor were considered as performance parameters. An L18(2135) orthogonal array was selected as an experimental plan for the six parameters: corner angle (α), inclination angle (β), baffle height (H), baffle length (L), baffle width (S) and Reynolds number. First of all, each goal was optimized, separately. Then, all the goals were optimized together, considering the priority of the goals. The presence of the rectangular cross sectioned baffles caused higher pressure drop than that of the smooth channel. It was concluded that increasing inclination angle and corner angle caused heat transfer to decrease. The length of the baffle was found to be the most influential parameter on friction factor. Likewise, it was concluded that the most affected parameter on the heat transfer was Reynolds number.

Original languageEnglish
Title of host publicationProceedings of the 2nd Thermal and Fluid Engineering Summer Conference, TFESC 2017 and 4th International Workshop on Heat Transfer, IWHT 2017
PublisherBegell House Inc.
Pages1173-1183
Number of pages11
ISBN (Electronic)9781567004700
Publication statusPublished - 2017
Externally publishedYes
Event2nd Thermal and Fluid Engineering Summer Conference, TFESC 2017 and 4th International Workshop on Heat Transfer, IWHT 2017 - Las Vegas, United States
Duration: 2 Apr 20175 Apr 2017

Publication series

NameProceedings of the Thermal and Fluids Engineering Summer Conference
Volume2017-April
ISSN (Electronic)2379-1748

Conference

Conference2nd Thermal and Fluid Engineering Summer Conference, TFESC 2017 and 4th International Workshop on Heat Transfer, IWHT 2017
Country/TerritoryUnited States
CityLas Vegas
Period2/04/175/04/17

Bibliographical note

Publisher Copyright:
© 2017 Begell House Inc.. All rights reserved.

Keywords

  • Convective heat transfer
  • Friction factor
  • Rectangular baffles
  • Taguchi method
  • Turbulent flow

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