Energy and exergy assessment of an ORC power plant with geothermal hot water and wood biomass-Serbian case

Abstract

In this study it has been presented performance analysis, from the point of First and Second Law of Thermodynamic, of an ORC for working fluids: R113, R245fa and R600a. Two heat sources were used- geothermal hot water from Vranjska Banja and wood biomass. Properties of the working fluids were obtained from Reference Fluid Properties (Refprop) and simulation was made with our own code. R600a showed better performance than R245fa with turbine power output 3.39 MW , thermal efficiency 14.01% and exergy efficiency of 33.3%.