Document IIF
Conception thermodynamique des condenseurs et des évaporateurs: formulation et applications.
Thermodynamic design of condensers and evaporators: formulation and applications.
Auteurs : HERMES C. J. L.
Type d'article : Article, Article de la RIF
Résumé
This paper assesses the thermo-hydraulic design approach introduced in a previous publication (Hermes, 2012) for condensers and evaporators aimed at minimum entropy generation. An algebraic model which expresses the dimensionless rate of entropy generation as a function of the number of transfer units, the fluid properties, the thermal-hydraulic characteristics, and the operating conditions is derived. Case studies are carried out with different heat exchanger configurations for small-capacity refrigeration applications. The theoretical analysis led to the conclusion that a high effectiveness heat exchanger does not necessarily provide the best thermal-hydraulic design for condenser and evaporator coils, when the rates of entropy generation due to heat transfer and fluid friction are of the same order of magnitude. The analysis also indicated that a high aspect ratio heat exchanger produces a lower amount of entropy than a low aspect ratio one.
Documents disponibles
Format PDF
Pages : 633-640
Disponible
Prix public
20 €
Prix membre*
Gratuit
* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)
Détails
- Titre original : Thermodynamic design of condensers and evaporators: formulation and applications.
- Identifiant de la fiche : 30007245
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 2
- Date d'édition : 03/2013
Liens
Voir d'autres articles du même numéro (26)
Voir la source
-
Theoretical and experimental evaluation of micr...
- Auteurs : RAMETTA R. S., BOENG J., MELO C.
- Date : 09/07/2018
- Langues : Anglais
- Source : 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
Voir la fiche
-
Air-side heat transfer and pressure drop in acc...
- Auteurs : WALTRICH P. J., BARBOSA J. R. Jr, MELO C., et al.
- Date : 14/07/2008
- Langues : Anglais
- Source : 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
- Formats : PDF
Voir la fiche
-
Thermodynamic design of condensers and evaporat...
- Auteurs : HERMES C. J. L.
- Date : 16/07/2012
- Langues : Anglais
- Source : 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
Voir la fiche
-
Improved thermal performance of a serpentine co...
- Auteurs : YERANEE K., RAO Y., YANG L., LI H.
- Date : 12/2022
- Langues : Anglais
- Source : Energies - 15 - 23
- Formats : PDF
Voir la fiche
-
Round-tube and microchannel heat exchanger mode...
- Auteurs : ZOU Y., LI H., TANG K., et al.
- Date : 11/07/2016
- Langues : Anglais
- Source : 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
Voir la fiche