4E analysis and multi objective optimization of a micro gas turbine and solid oxide fuel cell hybrid combined heat and power system

摘要: Abstract Energy, exergy, economic and environmental (4E) analysis optimization of a hybrid solid oxide fuel cell micro gas turbine (SOFC–MGT) system for use as combined generation heat power (CHP) is investigated in this paper. The modeled performance related results are validated using available data literature. Then multi-objective approach based on genetic algorithm incorporated. Eight design parameters selected the procedure. System exergy efficiency total cost rate (including capital or investment cost, operational penalty emissions) two objectives. effects unit output optimum also investigated. It observed that most sensitive important parameter current density which has significant effect balance between efficiency. point from Pareto distribution indicates 60.7%, with estimated electrical energy 0.057 $kW −1  h , payback period about 6.3 years investment.