An analytical correlation for conjugate heat transfer in fin and tube heat exchangers

Conjugate heat transfer of liquid-gas fin and tube heat exchangers is widely used in industry. However, heat transfer characteristics of such system is difficult to predict as the limiting heat rate can be from either side. This paper aims to quantify the conjugate heat transfer performance of fin a...

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Main Authors: Kalantari, H., Ghoreishi-Madiseh, S.A., Kurnia, J.C., Sasmito, A.P.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.23818 /
Published: Elsevier Masson s.r.l. 2021
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85101238198&doi=10.1016%2fj.ijthermalsci.2021.106915&partnerID=40&md5=a2acb38a75db88b502bff57c67c9deaf
http://eprints.utp.edu.my/23818/
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spelling utp-eprints.238182021-08-19T13:09:24Z An analytical correlation for conjugate heat transfer in fin and tube heat exchangers Kalantari, H. Ghoreishi-Madiseh, S.A. Kurnia, J.C. Sasmito, A.P. Conjugate heat transfer of liquid-gas fin and tube heat exchangers is widely used in industry. However, heat transfer characteristics of such system is difficult to predict as the limiting heat rate can be from either side. This paper aims to quantify the conjugate heat transfer performance of fin and tube heat exchangers via mathematical modeling. Three-dimensional conjugate fluid flow and heat transfer model is developed and validated against the state-of-the-art experimental data and existing analytical correlations. Turbulent k-ε model has been employed for the fluid flow and heat transfer modeling. Statistical method, i.e. data reduction and multivariate nonlinear regression techniques, is implemented to analyse the results and to quantify the interaction between parameters. Wide range of parametric studies and simulations is further carried out to evaluate the significance of design, geometrical and operating parameters. According to the results of the study, larger fin length factor and fin pitch and the smaller tube diameter are in favor of fin and tube heat exchangers within the Reynolds number range of 3000�12,000. Finally, a novel conjugate heat transfer correlation for liquid-gas finned tube heat exchangers is proposed to assist engineers for practical designs and applications. The results suggest that our new correlation gives rise to a more accurate conjugate heat transfer prediction as compared to that of traditional non-conjugate counterpart. © 2021 Elsevier Masson s.r.l. 2021 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85101238198&doi=10.1016%2fj.ijthermalsci.2021.106915&partnerID=40&md5=a2acb38a75db88b502bff57c67c9deaf Kalantari, H. and Ghoreishi-Madiseh, S.A. and Kurnia, J.C. and Sasmito, A.P. (2021) An analytical correlation for conjugate heat transfer in fin and tube heat exchangers. International Journal of Thermal Sciences, 164 . http://eprints.utp.edu.my/23818/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Conjugate heat transfer of liquid-gas fin and tube heat exchangers is widely used in industry. However, heat transfer characteristics of such system is difficult to predict as the limiting heat rate can be from either side. This paper aims to quantify the conjugate heat transfer performance of fin and tube heat exchangers via mathematical modeling. Three-dimensional conjugate fluid flow and heat transfer model is developed and validated against the state-of-the-art experimental data and existing analytical correlations. Turbulent k-ε model has been employed for the fluid flow and heat transfer modeling. Statistical method, i.e. data reduction and multivariate nonlinear regression techniques, is implemented to analyse the results and to quantify the interaction between parameters. Wide range of parametric studies and simulations is further carried out to evaluate the significance of design, geometrical and operating parameters. According to the results of the study, larger fin length factor and fin pitch and the smaller tube diameter are in favor of fin and tube heat exchangers within the Reynolds number range of 3000�12,000. Finally, a novel conjugate heat transfer correlation for liquid-gas finned tube heat exchangers is proposed to assist engineers for practical designs and applications. The results suggest that our new correlation gives rise to a more accurate conjugate heat transfer prediction as compared to that of traditional non-conjugate counterpart. © 2021
format Article
author Kalantari, H.
Ghoreishi-Madiseh, S.A.
Kurnia, J.C.
Sasmito, A.P.
spellingShingle Kalantari, H.
Ghoreishi-Madiseh, S.A.
Kurnia, J.C.
Sasmito, A.P.
An analytical correlation for conjugate heat transfer in fin and tube heat exchangers
author_sort Kalantari, H.
title An analytical correlation for conjugate heat transfer in fin and tube heat exchangers
title_short An analytical correlation for conjugate heat transfer in fin and tube heat exchangers
title_full An analytical correlation for conjugate heat transfer in fin and tube heat exchangers
title_fullStr An analytical correlation for conjugate heat transfer in fin and tube heat exchangers
title_full_unstemmed An analytical correlation for conjugate heat transfer in fin and tube heat exchangers
title_sort analytical correlation for conjugate heat transfer in fin and tube heat exchangers
publisher Elsevier Masson s.r.l.
publishDate 2021
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85101238198&doi=10.1016%2fj.ijthermalsci.2021.106915&partnerID=40&md5=a2acb38a75db88b502bff57c67c9deaf
http://eprints.utp.edu.my/23818/
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score 11.62408

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