Abstract

Theoretical calculations of the coefficient of performance were undertaken to examine the performance characteristics of various working medium-absorbent systems using alcohol as working medium. The coefficients of performance for absorption refrigerating machines, absorption heat pumps and absorption heat transformers of binary and ternary systems were calculated using the enthalpies at various temperatures, pressures and absorbent concentrations. Analysis of the performance characteristics for a double-effect absorption refrigerating machine was carried out for the following circulation methods of strong and weak solutions: series flow, parallel flow and series and parallel flow. Useful features were found for individual working medium-absorbent systems and various circulation methods.

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