Using CO2 as a Cooling Fluid for Power Plants: A Novel Approach for CO2 Storage and Utilization

To our knowledge, the potential use of CO2 as a heat-transmitting fluid for cooling applications in power plants has not been explored very extensively. In this paper, we conduct theoretical analysis to explore heat transmission fluid. We evaluate and compare thermophysical properties both dry air perform simple on steam-condensing device where steam flows through one flow paths (CO2 or air) is expanded from high-pressure container other. Sample calculations are carried out saturated-vapor at 0.008 MPa 41.5 °C with mass rate 0.01 kg/s. The pressure storage ranges 1 5 MPa, its temperature kept 35 °C. set 0.1 MPa. With heat-removing fluid, exits condensing vapor-liquid 53% 10% vapor still containing 44% 7% 2 respectively. For 3 higher, single-phase saturated liquid. Thus, due excellent Joule–Thomson effect capacity, better plant applications. surface area also estimated, results show that when used, 50% 60% less than used. This leads significant reductions condenser size capital costs. A rough estimate amount can be stored utilized which operates 540 (813 K) 10 turbine inlet outlet. indicate if used emitted 1000 MW during period 250 days could utilized.