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Étude des fluides frigorigènes : mesures et modélisations

Christophe Coquelet 1
1 CEP/Fontainebleau
CEP - Centre Énergétique et Procédés
Abstract : Environment problems and particularly that of the ozone layer are strongly current. Since 1987, the Montreal protocol lays down new rules about the use of refrigerant mixtures by industrialised nations. To follow this protocol, with good technical and economical ways, industry needs thermophysical data about the new refriferant mixtures. In order to measure vapour-liquid equilibria of refrigerant mixtures, two experimental techniques were used: a static-analytic method with phase sampling ( analysis is performed by gas chromatography) and a synthetic method with a variable volume cell. Four binary systems and one ternary systems have been studied: 1,1,1,2,3,3,3-heptafluoropropane (R227ea)+ propane (R290); difluoromethane (R32) + R290; R32 + R290, and carbon dioxide (CO2) + R227ea; R32+R290+R227ea. A home made software named THERMOPACK was developed in order to fit and model the experimental data: this software allows comparing our experimental results with data available from literature, calculating the critical line the azotropes positions.
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Submitted on : Wednesday, January 26, 2005 - 8:00:00 AM
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  • HAL Id : pastel-00000991, version 1

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Christophe Coquelet. Étude des fluides frigorigènes : mesures et modélisations. Chimie. École Nationale Supérieure des Mines de Paris, 2003. Français. ⟨pastel-00000991⟩

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