Abstract
The proposed solar thermal based combined power and cooling cycle can be operated from low grade energy such as heat and well suited for domestic and industrial needs. The hybridization of vapour absorption refrigeration (VAR) and Kalina cycle system (KCS) results power in addition to cooling. The proposed plant has two turbines with super heater and reheater to recover more heat from the solar thermal collectors. The refrigerant vapour from the high pressure turbine is reheated for low pressure turbine which gives 9.3kW of extra power. The total power and cooling are 14.05kW and 73.58kW respectively at 0.42 absorber concentration and 99% of turbine concentration and 150°C of solar collector temperature. The invention also highlights the flexibility in the operation of system on only power mode or on only cooling mode. Thermodynamic analysis has been carried out with a focus on separator temperature and turbine concentration.
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