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Information × Registration Number 0214U003129, 0112U000730 , R & D reports Title Development of the thermodynamic basis of energy saving in low-temperature systems popup.stage_title Head Trotsenko Alexander Vladimirovich, Registration Date 21-01-2014 Organization Odessa National Academy of Food Technologies popup.description2 The classification of indefinite forms at the critical point formed by isobaric or isochoric heat capacity and other thermodynamic functions is proposed. Indeterminacies created by one of these heat capacities and of second derivatives of inverse critical conditions are evaluated. The value of the third derivative of pressure on volume at the critical point, based on cubic equations of state, is obtained. Analysis of the heat exchanger restoring process for the cycle of medium pressure is accompanied by a slight deterioration in energy performance indexes under both regimes. Refrigeration regime of work has more relative energy costs, when the restoring process, than liquefaction mode. On the basis of computer experiments it is shown that choosing the method of varying the of working bodies flow leads to better relative energy performance of the heat exchanger and the cycle is better as compared with the choice of the method of varying heat leaks from environment. Submitted approaches for restoring of thermodynamic efficiency may be extended to vehicles cooling stages with parallel expander. Product Description popup.authors Апреленко Володимир Володимирович Валякіна Ганна Вікторівна Мельнікова Віолетта Павлівна Мороз Сергій Олександрович Нікуліна Анастасія Станіславівна Наєр Вячеслав Андрійович Поддубна Марина Володимирівна Сігал Наталія МИронівна popup.nrat_date 2020-04-02 Close