THERMAL SCIENCE

International Scientific Journal

Jian Jiao

,

Qinxin Zhao

,

Yungang Wang

,

Shifeng Deng

,

Huaishuang Shao

PARAMETRIC STUDY AND OPTIMIZATION OF CAST AL-SI ALLOY HEAT EXCHANGER USING TAGUCHI METHOD

ABSTRACT
A 3-D numerical model of staggered pin fin array in cast Al-Si alloy heat ex-changer was established. For further structural optimization, seven geometric parameters were studied by Taguchi method, including diameter, width, transverse spacing, longitudinal spacing, offset distance, slit length, and row number. The 32 cases with different geometric parameters were simulated numerically. The heat transfer characteristics, flow resistance characteristics, and overall performance were fully discussed. The diameter and transverse spacing have important influence on heat transfer characteristics, and the structural parameters that affect the resistance characteristics are diameter, longitudinal spacing and slit length. Then analysis of variance shows that diameter and transverse spacing have greater effects on the overall performance than other five parameters. At last, the optimized structure of staggered pin fin array was obtained, and j/f1/3 increased by 1% to 3% for volume flow rate in the range from 0.03 to 0.11 m3/s.
KEYWORDS
flue gas, Taguchi method, numerical simulations, heat exchanger, heat transfer characteristics
PAPER SUBMITTED: 2023-05-07
PAPER REVISED: 2023-07-10
PAPER ACCEPTED: 2023-07-17
PUBLISHED ONLINE: 2023-09-02
DOI REFERENCE: https://doi.org/10.2298/TSCI230507181J
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 2, PAGES [971 - 985]
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Parametric study and optimization of cast Al-Si alloy heat exchanger using Taguchi method

© 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