Helical Baffle Thermohydraulic Performance Versus Segmental Baffle One

Authors

  • Mahdia YOUSFI Faculty of Technology, Department of Mechanical Engineering, 20 août 1955 University of Skikda

DOI:

https://doi.org/10.5755/j02.mech.31096

Keywords:

overall heat transfer coefficient - pressure drop – segmental baffle - continuous helical baffle – shell-and-tubes heat exchanger – Bell-Delaware method – Heat and pressure correction factors

Abstract

In this contribution, we reworked the Bell-Delaware technique for a HB-STHX to systematically study its thermohydraulic performance behavior in the shell side. The helical baffles are continuous quadrant sectors with five inclination angles 25°, 30°, 35°, 40° and 45° and are exanimated for six different values of Reynolds number  from  up to 40 . We have observed an increase in global heat transfer rate while a decrease in pressure loss, in continuous helical baffle case compared to segmental one. we have found that the baffle inclination 40° has the largest heat transfer coefficient, 25° gives the lowest pressure drop, whereas 45°, the largest inclination we have used, displays the greatest performance evaluation factor.

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Published

2022-12-05

Issue

Vol. 28 No. 6 (2022)

Section

MECHANICS OF FLUIDS AND GASES

License

The copyright for the articles in this journal is retained by the author(s) with the first publication right granted to the journal. The journal is licensed under the Creative Commons Attribution License 4.0 (CC BY 4.0).