Parametric evaluation of the combined solar driven precompression supercritical CO2 cycle and organic Rankine cycle using ultra low global warming potential fluids

Abstract

Abstract In this paper, thermodynamic parametric analysis of solar driven pre-compression cycle combined with super critical CO2 and organic Rankine cycle using zero ozone depletion (ODP) and ultra low global warming potential (GWP) fluids have been carried out. The thermal model for the above system was developed using low global warming potential fluids and it was found that the thermal performance of the system is increased with the concentration ratio, fluid velocity, and with solar irradiation while decreased with receiver emittance. In terms of thermal performance parameters the R1224yd(E) gives highest performance Maximum exergy efficiency, thermal efficiency and output power were increased from 36.73% to 58.52%, 34.16% to 54.42% and 183kW to 293.5kW respectively when DNI (direct normal irradiation) increased from 0.4 kW/m2 to 0.95 kW/m2 based on R1224yd(E) fluid. R1224yd(E) recommended for the better performance.