| Titre : | Experimental study of shell-side heat transfer coefficient and pressure drop for an integrally helical baffled heat exchanger combined with different enhanced tubes (2009) |
| Auteurs : | Zhengguo Zhang, Auteur ; Changshun Wu, Auteur ; Xiaoming Fang, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 8, Avril 2009) |
| Article en page(s) : | pp. 4040–4044 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | 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 |
