DETERMINATION OF THE OPTIMUM COOLING TEMPERATURE IN THE SUPERCRITICAL CYCLE OF THE VAPOR COMPRESSION REFRIGERATING MACHINE USING THERMODYNAMIC METHOD

Authors

  • Д. Х. Харлампиди Институт проблем машиностроения им. А. Н. Подгорного НАН Украины, ул. Дм. Пожарского, 2/10, г. Харьков, Украина, 61046, Ukraine https://orcid.org/0000-0003-4337-6238
  • В. А. Тарасова Институт проблем машиностроения им. А. Н. Подгорного НАН Украины, ул. Дм. Пожарского, 2/10, г. Харьков, Украина, 61046, Ukraine https://orcid.org/0000-0003-3252-7619
  • М. А. Кузнецов Институт проблем машиностроения им. А. Н. Подгорного НАН Украины, ул. Дм. Пожарского, 2/10, г. Харьков, Украина, 61046, Ukraine https://orcid.org/0000-0002-5180-8830

DOI:

https://doi.org/10.18198/j.ind.gases.2017.0857

Keywords:

Supercritical cycle, Exergy analysis, Thermoeconomic optimization

Abstract

The rationale for choosing the optimum cooling temperature in the actual cycle of a vapor compression refrigerating machine at a given compressor type is given from a thermoeconomic standpoint. A technique for carrying out advanced exergy analysis, developed on the basis of the theory of exergetic value, is proposed.  Reasons for the existence of an optimum cooling temperature corresponding to the maximum value of the exergy efficiency in the supercritical vapor compression cycle are revealed. The effect of mutual influence of the components of exergy losses in the supercritical cycle of the refrigerating machine is investigated. The results of thermo-economic optimization of the air-to-air refrigeration machine providing the conditions for achieving the minimum level of the total costs during supercritical cycle operation are presented.

Author Biographies

Д. Х. Харлампиди, Институт проблем машиностроения им. А. Н. Подгорного НАН Украины, ул. Дм. Пожарского, 2/10, г. Харьков, Украина, 61046

D.Kh. Kharlampidi, Doctor of Technical Sciences

В. А. Тарасова, Институт проблем машиностроения им. А. Н. Подгорного НАН Украины, ул. Дм. Пожарского, 2/10, г. Харьков, Украина, 61046

V.A. Tarasova, Candidate of Technical Science

М. А. Кузнецов, Институт проблем машиностроения им. А. Н. Подгорного НАН Украины, ул. Дм. Пожарского, 2/10, г. Харьков, Украина, 61046

V.A. Tarasova, Candidate of Technical Science

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Issue

Vol. 17 No. 1 (2017): Технические газы

Section

ECONOMY OF ENTERPRISES. ENERGY-SAVING. SAFETY

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