Parametric Analysis of a Polygeneration System with CO2 Working Fluid

The objective of the present work is investigation a novel polygeneration system for power, refrigeration and heating production at two temperature levels. uses CO2 as working fluid, which an environmentally friendly fluid. total configuration combination transcritical cycle coupled to Brayton with recompression, fed by biomass boiler. examined system, nominal operating conditions, produces 5 °C, 45 °C 80 °C. Additionally, can be converted into trigeneration where outputs are produced same level. was studied parametrically changing following seven critical parameters: turbine inlet temperature, high pressure, medium heat exchanger effectiveness, rejection temperature. In energy exergy efficiencies were 78.07% 26.29%, respectively. For input 100 kW, net power 24.50 30.73 while low 9.24 kW 13.60 analysis conducted developed model in Engineering Equation Solver.