THERMAL SCIENCE

International Scientific Journal

Kan Cao

,

Yaohua Yuan

,

Xiaomin Li

,

Chunyan Wang

,

Zhiyong Su

NUMERICAL ANALYSIS OF THE FLOW AND HEAT TRANSFER CHARACTERISTICS OF A STAGGERED PERFORATED LOUVER-FINNED HEAT EXCHANGER

ABSTRACT
A new kind of louvered fin structures with staggered holes is proposed, numerical simulation is carried out to study the heat transfer factor and the friction factor, and an experiment is designed to verify the simulation results at different Reynolds numbers, a good agreement is observed. Comparison with the traditional louver structure reveals that when the Reynolds number is between 150 and 400, the heat transfer factor increases by 10~24%, the friction factor increases by 1~2%, and the comprehensive evaluation factor increases by 9~23%. These results can be used for optimization of louver finned heat exchangers.
KEYWORDS
louver fin, heat transfer performance, flow resistance performance, numerical simulation
PAPER SUBMITTED: 2021-08-19
PAPER REVISED: 2022-06-15
PAPER ACCEPTED: 2022-06-20
PUBLISHED ONLINE: 2023-06-11
DOI REFERENCE: https://doi.org/10.2298/TSCI2303855C
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2023, VOLUME 27, ISSUE Issue 3, PAGES [1855 - 1863]
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Numerical analysis of the flow and heat transfer characteristics of a staggered perforated louver-finned heat exchanger

© 2024 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