THERMAL SCIENCE

International Scientific Journal

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Zihao Wang

,

Xinping Ouyang

NUMERICAL SIMULATION OF HEAT TRANSFER AND FLOW CHARACTERISTICS FOR PLATE FIN-AND-TUBE HEAT EXCHANGER WITH RING-BRIDGE SLIT FINS

ABSTRACT
In this paper, a new type of ring-bridge slit fins of plate fin-and-tube was proposed. It was studied by 3-D numerical simulation of heat transfer and flow using FLUENT. A sample of plate fin-and-tube exchanger with ring-bridge slit fins was tested. The reliability of the simulation was demonstrated by contrasting the simulated data with the experimental data. Six different structural parameters were investigated for their effects on the flow and heat transfer performance of the plate fin-and-tube exchanger with ring-bridge fins. It was found that the fin pitch had the most significant effect on the heat transfer and flow performance of the ring-bridge slit fins. Proper reduction of the front ring-bridge slit angle of the sample was beneficial to the overall heat transfer performance. The overall heat transfer performance was weakened by both decreasing or increasing the rear ring-bridge slit angle of the sample. The optimal fin structure was obtained by the orthogonal experimental method.
KEYWORDS
plate fin-and-tube exchanger, ring-bridge slit fins, Heat Transfer Enhancement, numerical simulation
PAPER SUBMITTED: 2023-01-23
PAPER REVISED: 2023-03-26
PAPER ACCEPTED: 2023-03-28
PUBLISHED ONLINE: 2023-05-13
DOI REFERENCE: https://doi.org/10.2298/TSCI230123096W
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 1, PAGES [77 - 88]
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Numerical simulation of heat transfer and flow characteristics for plate fin-and-tube heat exchanger with ring-bridge slit fins

2025 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence