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Information × Registration Number 0206U004180, 0103U001582 , R & D reports Title Development of novel energetically-effective azeotropic and quasiazeotropic refrigerate mixtures, based on thermodynamic and molecular modeling. popup.stage_title Head Rogankov Vitaly Borisovich, Registration Date 14-02-2006 Organization Odessa State Academy of Refrigeration popup.description2 Widespread, comparatively non-expensive and ecologically-neutral substances: carbon dioxide, nitrous oxide, ethylene, ethane, propane, propylene have been selected as the basic components of the azeotropic mixtures with the refrigerants (HFC): R32, R125 and R134a. To provide the data which are necessary for the reliable component's equation of state one needs in a thermodynamically-consistent strategy of their choice from the different sources. Such a method has been proposed. The method of calculation of critical curves and some relevant types of the phase diagrams in the selected systems has been developed. Evaluation of critical curves' forms and estimation of the possible presence of critical azeotropy have been done. An effective method to predict the phase diagram with the azeotropy in the low-temperature region was proposed and tested on the mixtures of carbon dioxide with ethylene and ethane as well as on the mixture R290 and R134a. Molecular-dynamic simulation for this systems provided the new concept of the azeotropy prediction in terms of binary interaction parameters. Product Description popup.authors popup.nrat_date 2020-04-02 Close