Scroll compressor modelling for heat pumps using hydrocarbons as refrigerants |
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Affiliation: | 1. Université Européenne de Bretagne, Equipe MTRhéo, Laboratoire LGCGM, INSA de Rennes et Université de Rennes 1, IUT Génie Civil, 3 rue du Clos Courtel, BP 90422, 35704 Rennes Cedex 7, France;2. Pôle Cristal – Centre Technique Froid et Climatisation, 49, avenue René Cassin, 22100 Dinan, France |
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Abstract: | Hydrocarbons are today considered as promising alternatives to hydrofluorocarbons thanks to their low environmental impact and their easy implementation. However, some precautions have to be taken to thwart their flammability. European regulations impose to take stringent measures regarding components and to install heat pumps in unoccupied spaces. Nevertheless manufacturers keep working on components for hydrocarbons. In the frame of a research project on heat pumps for simultaneous heating and cooling, an R407C prototype working with a scroll compressor was built and tested. A near-industrial prototype is today being designed for propane with the help of recent modelling techniques. After having detailed the main issues regarding hydrocarbons as refrigerants, this article reviews scroll compressor modelling studies and presents the development of a thermodynamically realistic scroll compressor model. It was first developed for R407C and then adapted to thermodynamic properties of hydrocarbons and to other sizes of compressors. |
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Keywords: | Compressor Scroll Model Hydrocarbons Compresseur Spirale Modèle Hydrocarbures |
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