Entropic and Statistical Analysis of Energy Expenditure Distribution to Compensate for Irreversibility of Working Processes of Air Conditioning Systems

Simple, brine and regenerating cycles of a single-stage vapor-compression refrigerating machine operating on different refrigerants under air conditioning regime are studied using the method of the entropic and statistical analysis. The divergence of the values of adiabatic compression work obtained as a result of the analysis and the values determined using T-s (lg p-h) diagrams for cycles on R22 freon does not exceed 1%. The calculation of work-loss distribution in the refrigerating machine, which was performed within the entropic and statistical analysis, makes it possible to mark out the certain components (nodes) of the refrigerating machine, which demands a special attention. The influence of a refrigerant type on distribution of compression work losses was revealed as well.

References

[1] Arkharov A.M., Leont’ev A.I., Sychev V.V., Arkharov I.A., Krizhanovskaya E.N., Kustov P.V. Accumulation of cold as a method for energy saving and energy consumption optimization. Vestn. MAKh [Vestn. Int. Acad. Refrig.], 2009, no. 2, pp. 12–19 (in Russ.).

[2] Arkharov A.M. Some features of thermodynamic analysis of low temperature systems. Vestn. Mosk. Gos. Tekh. Univ. im. N.E. Baumana, Mashinostr. Spetsvyp. [Herald of the Bauman Moscow State Tech. Univ., Mach. Build., Spec. Issue], 2010 (in Russ.).

[3] Arkharov A.M., Shishov V.V. Entropy and statistical analysis of classical cooling cycles for air conditioning systems. Kholod. Tekh. [Refrig. Eng.], 2011, no. 7, pp. 40–45 (in Russ.).