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Optimisation d'un échangeur de chaleur multitubulaire haute pression pour le refroidissement au gaz synthétique dans une CCGI.

Optimization of high-pressure shell-and-tube heat exchanger for syngas cooling in an IGCC.

Auteurs : LI Y., JIANG X., HUANG X., et al.

Type d'article : Article

Résumé

This work investigates the flow field and the heat transfer characteristics of a shell-and-tube heat exchanger for the cooling of syngas. Finite volume method based on FLUENT software was used and the RNG k-e turbulence model was adopted for modelling turbulent flow. The porosity rate, the distribution of the resistance and the distribution of the heat source are introduced to FLUENT by coupling the user defined function. The pressure drop, the temperature distribution and the variation of local heat transfer are studied under the effects of the syngas components and the operating pressure, and the effect of the arrangement of the baffles on the heat transfer is studied. The results show that higher operation pressure can improve the heat transfer, however brings bigger pressure drop. The components of the syngas significantly affect the pressure drop and the heat transfer. The arrangement of the baffles influences the fluid flow. [Reprinted with permission from Elsevier. Copyright, 2010].

Détails

  • Titre original : Optimization of high-pressure shell-and-tube heat exchanger for syngas cooling in an IGCC.
  • Identifiant de la fiche : 2010-1814
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 53 - n. 21-22
  • Date d'édition : 10/2010
  • DOI : http://dx.doi.org/10.1016/j.ijheatmasstransfer.2010.04.038

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