CO2 – Based transcritical Rankine cycle coupled with a ground-cooled condenser

This paper presents a new system that incorporates the CO2-based transcritical Rankine cycle with geothermal condenser. The innovation studied in current proposed is use of shallow ground heat exchanger to activate ground-cooled condenser instead an air-cooled one power cycle. combination very beneficial for generation, especially summer because more effective than ambient air extracting from working fluid passing through due its lower temperature. Thus, same amount added cycle, could be produced increase pressure difference between gas heater and Consequently, operating cost will reduced. parametric study covers wide range source applications temperature mass flow rate being varied 500 1500 °C 100–350 kg/hr respectively. objective generate maximum possible while minimizing sizes exchangers. results show best parameters controlled are turbine inlet CO2 pipe diameter. incorporation significantly enhanced cycle’s performance which net output increased by ~ 30% compared conventional enhancement mainly depends on ground’s since it directly changes condensation hence affects expansion.