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Evaluation de la performance lors de la condensation intratubulaire de frigorigènes prenant en compte les facteurs pénalisants (pertes exergétiques) pour le transfert de chaleur et la chute de pression.

In-tube condensation performance of refrigerants considering penalization terms (exergy losses) for heat transfer and pressure drop.

Auteurs : CAVALLINI A., BROWN J. S., DEL COL D., et al.

Type d'article : Article

Résumé

This paper presents performance evaluation criteria (PEC) dubbed penalty factor (PF) and total temperature penalization (TTP) for condensation inside tubes. This general methodology allows for the ranking of refrigerants for condenser applications based on their heat transfer potentials. Among halocarbons, higher pressure fluids have lower PF and TTP values than medium and lower pressure refrigerants, with ammonia outperforming all refrigerants. These PEC are also used to develop simple theoretical models for the optimization of condenser refrigerant circuitry. As examples, two condenser optimization cases are considered, with the theoretical predictions comparing favourably with simulation results from a detailed heat exchanger model. [Reprinted with permission from Elsevier. Copyright, 2010].

Détails

  • Titre original : In-tube condensation performance of refrigerants considering penalization terms (exergy losses) for heat transfer and pressure drop.
  • Identifiant de la fiche : 2010-1387
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 53 - n. 13-14
  • Date d'édition : 06/2010
  • DOI : http://dx.doi.org/10.1016/j.ijheatmasstransfer.2010.02.007

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