Document IIF
Optimisation d'un compresseur à spirale noyé.
Optimization of a scroll compressor for liquid flooding.
Auteurs : BELL I. H., GROLL E. A., BRAUN J. E., et al.
Type d'article : Article, Article de la RIF
Résumé
In two companion papers, simulation models for the working processes of liquid-flooded scroll compressors and expanders have been developed and validated against experimental data. In this study, analytic models are presented for the modes of irreversibility generation in the liquid-flooded scroll compressor including built-in volume ratio maladjustment, pressure drop and leakage. A thermodynamic model is used to derive the ideal volume ratio for a liquid-flooded compressor, which is higher than that of dry compression. An optimum set of built-in volume ratio and scroll base circle radius is found which maximizes the overall isentropic efficiency by minimizing the leakage and pressure drop irreversibilities. The irreversibility generation models are used to optimize a scroll compressor for the liquid-flooded Ericsson cycle application. The model predicts scroll compressor overall isentropic efficiency of over 80% (based on the shaft power) at an oil mass fraction of 88%.
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Détails
- Titre original : Optimization of a scroll compressor for liquid flooding.
- Identifiant de la fiche : 30005902
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 35 - n. 7
- Date d'édition : 11/2012
Liens
- Voir aussi : Liquid-flooded compression and expansion in scroll machines. I. Model development.
Liquid-flooded compression and expansion in scroll machines. II. Experimental testing and model validation.
Thermodynamic modeling of hydrate dissociation conditions for refrigerants R134a, R141b and R152a.
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Indexation
- Thèmes : Compresseurs
- Mots-clés : Rendement; Système à compression; Optimisation; Modélisation; Ericsson; Cycle thermodynamique; Compresseur à spirale
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