Thermodynamic analysis of power and cooling Kalina cycle system Available to Purchase

The Kalina cycle system yields higher thermal performance in utilisation of heat from low temperature sources such as industrial hot gas streams, internal combustion engine exhaust-gases, solar-heated fluid streams, and geothermal hot springs. Various designs of Kalina cycle have been developed earlier but most of the designs have been developed for power applications with low sink temperatures, In the present work a power and cooling combined Kalina cycle system has been proposed. The source and the sink temperatures have been considered in the range of 90 °C to 150 °C and 20 °C to 28 °C respectively for the analysis. As part of improvement, an auxiliary superheater is introduced in the the Kalina cycle system to superheat the vapour mixture. The results of analysis indicated an increase in exergy and energy efficiencies of 3% and 2% respectively with the incorporation of an auxiliary superheater.