Experimental study of shell-side heat transfer coefficient and pressure drop for an integrally helical baffled heat exchanger combined with different enhanced tubes / Zhengguo Zhang in Industrial & engineering chemistry research, Vol. 48 N° 8 (Avril 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N° 8 (Avril 2009) . - pp. 4040–4044 Titre : Experimental study of shell-side heat transfer coefficient and pressure drop for an integrally helical baffled heat exchanger combined with different enhanced tubes Type de document : texte imprimé Auteurs : Zhengguo Zhang, Auteur ; Changshun Wu, Auteur ; Xiaoming Fang, Auteur Année de publication : 2009 Article en page(s) : pp. 4040–4044 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Shell-side heat transfer coefficient Pressure drop Helical baffle exchanger Enhanced tubes Résumé : Experiments were performed to compare the shell-side heat transfer coefficient and pressure drop of an integrally helical baffle heat exchanger with rib-shaped fin tubes to those of that with low-fin tubes for oil cooling using water as a coolant. The experimental results showed that for the heat exchanger with rib-shaped fin tubes, the shell-side Nusselt and Euler numbers were augmented by 90−130% and 10%, respectively. The increase in heat transfer is significantly greater than that in pressure drop for rib-shaped fin tubes. Correlations have been suggested for both the shell-side Nusselt and Euler numbers for the two heat exchangers with different tube types and give very good agreement with experimental results. It is a promising route to use rib-shaped fin tubes instead of low-fin tubes for improving the performance of an integrally helical baffle heat exchanger. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801339s [article] Experimental study of shell-side heat transfer coefficient and pressure drop for an integrally helical baffled heat exchanger combined with different enhanced tubes [texte imprimé] / Zhengguo Zhang, Auteur ; Changshun Wu, Auteur ; Xiaoming Fang, Auteur . - 2009 . - pp. 4040–4044. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 8 (Avril 2009) . - pp. 4040–4044 Mots-clés : Shell-side heat transfer coefficient Pressure drop Helical baffle exchanger Enhanced tubes Résumé : Experiments were performed to compare the shell-side heat transfer coefficient and pressure drop of an integrally helical baffle heat exchanger with rib-shaped fin tubes to those of that with low-fin tubes for oil cooling using water as a coolant. The experimental results showed that for the heat exchanger with rib-shaped fin tubes, the shell-side Nusselt and Euler numbers were augmented by 90−130% and 10%, respectively. The increase in heat transfer is significantly greater than that in pressure drop for rib-shaped fin tubes. Correlations have been suggested for both the shell-side Nusselt and Euler numbers for the two heat exchangers with different tube types and give very good agreement with experimental results. It is a promising route to use rib-shaped fin tubes instead of low-fin tubes for improving the performance of an integrally helical baffle heat exchanger. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801339s

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