The mathematical modelling of the absorption refrigeration machines used in energy systems

Abstract

In the paper the authors present the possible usage of absorption refrigeration machines in air-conditioning systems and tri- and cogeneration processes. One-stage and multi-stage absorption refrigeration cycles are described. The influence of temperature of cooling water or chilled water on refrigeration plant’s COP is analyzed. The series of thermodynamic parameters are taking into consideration - the temperature of feeding medium of the desorber, the temperature of cooling water and the use of various energy carriers to drive absorption devices including biogas from organic and communal waste matter. Some comparative calculations of COP are presented to find the optimal absorption cycle for building energy systems.