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Numerical Comparison of Shell-Side Performance for Shell and Tube Heat Exchangers with Novel, Helical and Segmental Baffles

Author(s):

Himanshu Ramniwas Mittal , Shri Shankaracharya Engineering College, Junwani, Bhilai, India; Chandra Shekhar Nagendra, Shri Shankaracharya Engineering College, Junwani, Bhilai, India; Nilesh Kumar Sharma, Shri Shankaracharya Engineering College, Junwani, Bhilai, India

Keywords:

Novel baffle STHX, Helical baffle SHTX, Segmental baffle STHX, CFD, Heat Exchanger, Numerical comparison, RNG, k-ε model

Abstract

Shell-and-tube heat exchanger, is one of the most widely used heat exchange apparatus in various industrial process and research fronts. Baffle selection is critical to control and improve the thermo-hydraulic performance of this type of heat exchanger. In this paper, three-dimensional computational fluid dynamics (CFD) simulations, using the ANSYS 17 FLUENT, have been performed to study and compare the shell-side flow distribution, heat transfer coefficient and the pressure drop between the recently developed novel, helical baffles and the conventional segmental baffles. In this numerical comparison, the whole heat exchangers consisting of the shell, tubes, baffles and nozzles are modelled. The model is then used to compute and compare the thermo-hydraulic performance for all the three cases. The results show that the use of helical baffles results in higher thermo-hydraulic performance compare to novel and segmental baffles.

Other Details

Paper ID: IJSRDV5I41386
Published in: Volume : 5, Issue : 4
Publication Date: 01/07/2017
Page(s): 1127-1132

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