Etude numérique sur un échangeur de chaleur combiné à calandre multiple et multitubulaire avec chicanes hélicoïdales continues.
Numerical investigation on combined multiple shell-pass shell-and-tube heat exchanger with continuous helical baffles.
Résumé
A combined multiple shell-pass shell-and-tube heat exchanger (CMSP-STHX) with continuous helical baffles in outer shell pass has been invented to improve the heat transfer performance and simplify the manufacture process. The CMSP-STHX is compared with the conventional shell-and-tube heat exchanger with segmental baffles (SG-STHX) by means of computational fluid dynamics (CFD) method. The numerical results show that, under the same mass flow rate M and overall heat transfer rate Q(m), the average overall pressure drop 'delta p(m)' of the CMSP-STHX is lower than that of conventional SG-STHX by 13% on average. Under the same overall pressure drop 'delta p(m)' in the shell side, the overall heat transfer rate Qm of the CMSP-STHX is nearly 5.6% higher than that of SG-STHX and the mass flow rate in the CMSP-STHX is about 6.6% higher than that in the SG-STHX. The CMSP-STHX might be used to replace the SG-STHX in industrial applications to save energy, reduce cost and prolong the service life. [Reprinted with permission from Elsevier. Copyright, 2008].
Détails
- Titre original : Numerical investigation on combined multiple shell-pass shell-and-tube heat exchanger with continuous helical baffles.
- Identifiant de la fiche : 2009-1037
- Langues : Anglais
- Source : International Journal of Heat and Mass Transfer - vol. 52 - n. 5-6
- Date d'édition : 01/2009
Liens
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Indexation
- Thèmes : Transfert de masse
- Mots-clés : Géometrie; Transfert de chaleur; Simulation; Modélisation; Échangeur multitubulaire; Chicane; Échangeur de chaleur; Chute de pression
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- Auteurs : ZHANG J. F., HE Y. L., TAO W. Q.
- Date : 11/2009
- Langues : Anglais
- Source : International Journal of Heat and Mass Transfer - vol. 52 - n. 23-24
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- Auteurs : LI H., KOTTKE V.
- Date : 01/1998
- Langues : Anglais
- Source : International Journal of Heat and Mass Transfer - vol. 41 - n. 2
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3D numerical simulation on shell-and-tube heat ...
- Auteurs : ZHANG J. F., HE Y. L., TAO W. Q.
- Date : 11/2009
- Langues : Anglais
- Source : International Journal of Heat and Mass Transfer - vol. 52 - n. 23-24
Voir la fiche
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- Auteurs : ZHANG Z., XU T., FANG X.
- Date : 10/2004
- Langues : Anglais
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Effect of baffle spacing on pressure drop and l...
- Auteurs : LI H., KOTTKE V.
- Date : 05/1998
- Langues : Anglais
- Source : International Journal of Heat and Mass Transfer - vol. 41 - n. 10
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