@conference {20334,
	title = {Research of new refrigerants : prediction of the position of azeotropes for binary mixtures},
	booktitle = {Third Southern African Solar Energy Conference SASEC2015},
	year = {2015},
	publisher = {UPSpace Institutional Repository },
	organization = {UPSpace Institutional Repository },
	address = {Kruger National Park, South Africa},
	abstract = {
	The aim of this paper is to predict the location of azeotropes for binary mixtures using two methods: firstly from the experimental data and secondly with a thermodynamic model. The model is composed of the Peng{\textendash}Robinson equation of state, the Mathias{\textendash}Copeman alpha function and the Wong{\textendash}Sandler mixing rules involving the NRTL model. The binary systems of refrigerants considered in this paper are: Pentafluoroethane (R125) + Propane (R290) [1], 1,1,1-Trifluoro{\'e}thane (R143a) + Propane (R290) [2] and Carbon Dioxide (R744) + Propane (R290) [3]. The mixtures mentioned above have been chosen because they are environment friendly with a null ODP and a low GWP. The results proved that there is a good agreement between the predicted values and the experimental data. The presented methods are able of predicting the azeotropic positions.

},
	url = {https://repository.up.ac.za/handle/2263/49557},
	author = {H. Madani, and S. FEDALI and C. BOUGRIOU and S. RAHAL and G. Mebarki}
}
