Document IIF
Modèle pour la simulation des systèmes frigorifiques complexes fondés sur un réseau de fluide diphasique. I. Développement du modèle.
Simulation model for complex refrigeration systems based on two-phase fluid network. I. Model development.
Résumé
Some complex refrigeration and heat pump systems with several condensers and evaporators have been developed for different kinds of application. Traditional simulation models were developed for systems in certain operating modes and they failed in modelling the complex refrigeration systems with uncertainties of heat exchangers function and refrigerant flowing direction. In order to predict the performance of complex refrigeration systems, a simulation model is presented based on the two-phase fluid network. The model consists of distributed-parameter model of heat exchangers and connecting tubes, map-based model of inverter compressor and electronic expansion valve. Based on the characteristic of refrigeration system and fluid network, the three conservation equations, i.e. energy, momentum and mass equations, are solved iteratively. This model can deal with the uncertainty of refrigerant flow direction by separating the solving process of the components and the fluid network model, and therefore can simulate different kinds of complex refrigeration systems in different operating modes and conditions. The model is validated by the experimental data of an inverter air conditioner in heating/cooling operating modes and it shows the error of the model is mainly determined by the error of submodels of components in calculating heat transfer and pressure loss. The model is applied for performance analysis of three kinds of complex refrigeration systems in the accompanying article (see this Bulletin, reference 2008-0623).
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Détails
- Titre original : Simulation model for complex refrigeration systems based on two-phase fluid network. I. Model development.
- Identifiant de la fiche : 2008-0622
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 3
- Date d'édition : 05/2008
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Simulation model for complex refrigeration syst...
- Auteurs : SHI W., SHAO S., LI X., et al.
- Date : 05/2008
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 3
- Formats : PDF
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Simulation d'un évaporateur pour un réfrigérate...
- Auteurs : LIAO Y., DING G., LIN E., et al.
- Date : 12/2007
- Langues : Chinois
- Source : Journal of Refrigeration - vol. 28 - n. 118
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Influence of the source and sink temperatures o...
- Auteurs : CORBERÁN J. M., MARTÍNEZ-GALVÁN I., GONZÁLVEZ-MACIÁ J., et al.
- Date : 06/04/2009
- Langues : Anglais
- Source : RCR 2009. 1st IIR Workshop on Refrigerant Charge Reduction in Refrigerating Systems.
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Effects of airflow maldistribution on the perfo...
- Auteurs : GONG J. Y., YUAN X. L., HU W. X., et al.
- Date : 21/08/2007
- Langues : Anglais
- Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
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A method for tuning unitary equipment models to...
- Auteurs : SHEN B., BRAUN J. E., GROLL E. A.
- Date : 17/08/2003
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- Source : 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
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