ENERGY AND EXERGY ANALYSIS OF SOLAR POWER TOWER PLANT BASED ON NANOFLUID

Abstract

The evolution of nanofluid with good specific heat capacity and thermal conductivity makes it use in solar thermal powerplant. This work present the theoretical framework of energy and exergy analysis of solar tower powerplant with molten salt nanofluid as the heat transfer fluid in the central receiver. Several design parameters are also consider like direct normal irradiation (DNI), concentration ratio, receiver outlet temperature. The result show the variation of receiver efficiency, receiver exergy efficiency and overall system efficiency, receiver exergy efficiency with DNI, concentration ratio and receiver outlet temperature. And the receiver and overall system efficiency are also compared to eachother. This work also compare the energy efficiency and exergy efficiency of various solar tower powerplant subsystem of molten salt nanofluid with the pure molten salt.