Analysis of thermodynamic cycles of low-temperature plants with regard to the mass change of the refrigerant

The article refers to the importanance of increasing the productivity of thermal and refrigeration equipment in the food industry by improving energy efficiency of equipment. Up to now, all power and refrigeration chillers: Carnot, Diesel, OTTO, Renkin and others work normally on a constant mass agent regardless of whether they are closed or open. One of the basic concepts for it is that the processes that make them are designed to be reversible or ideal, such as isothermal or adiabate. Another constraint is that the thermodynamics of these processes and cycles do not take into account the influence of the additive factor (A-factor), i.e. the mass of the working medium. The use of the latter allows any process and cycle to vary both towards its approximation or reversibility and towards achieving maximum efficiency simultaneously.