Year: 2026
Type: article
Abstract: This paper presents an energy and exergy analysis of a Solid Oxide Fuel Cell (SOFC)-Gas Turbine (GT) configuration integrated with a Heat-Recovery Steam Generator (HRSG) to generate steam for industrial use. The simulation of the hybrid powerplant was performed over a Compression Pressure Ratio (CPR) range of 8-16, with variations in air and fuel supply. The net power output, along with energy and exergy efficiencies, increases with increasing CPR. Without additional fuel supply to the combustion chamber, the total power output of the system is 40.92 MW, with energy and exergy efficiencies are 61.23% and 59.15%, respectively, at CPR 16. The net power output with additional fuel input (50-150 kmol/hr) increases to 50 MW at 150 kmol/hr, at 16 CPR; however, the thermodynamic efficiency decreases owing to increasing Irreversibility. The component-level irreversibility analysis indicates maximum exergy destruction at the SOFC, followed by the CC. The steam generated within the HRSG by utilising the GT exhaust stream increases with additional fuel, reaching 12.27 kg/sec at 16 CPR. The study highlighted the trade-off between efficiency improvement and net power enhancement in the proposed configuration.
Institution: Dibrugarh University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7202250870