Year: 2025
Type: article
Abstract: One such numerical CFD study (11-E-09) was performed on the industrial shell-and-tube heat exchanger to compare the thermal-hydraulic performance of three fin geometries (external segmented fins, continuous rectangular wrap fins, and internal twisted-tape inserts): These three fin shapes and variations were investigated. All fin designs improved heat transfer relative to the smooth tube baseline. The Type 1 segmented fins, in fact, resulted in an even enhancement of ≈12% in heat transfer with moderate pressure drop. Type 2 helical fins also offered similar thermal enhancement because they maintained surface contact throughout the fins in order to increase overall conductance. The twisted-tape (Type 3) insert generated the most thermal gains (~19% gain) but had a much higher hydraulic penalty. The design of fin geometry to enhance the performance of exchanger while controlling pumping power is suggested by the study
Author: Fatimah Al-Hassany
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7126097689
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