Thermal Evaluation of a Novel Integrated System Based on Solid Oxide Fuel Cells and Combined Heat and Power Production Using Ammonia as Fuel

A novel integrated system based on solid oxide fuel cells (SOFCs), a gas turbine (GT), the steam Rankine cycle (SRC), Kalina (KC), and organic (ORC) is proposed to achieve cascade energy utilization. Mathematical models are introduced performance analyzed using exergy methods. The first second laws of thermodynamics used analyze thermodynamically. In addition, destruction losses various subsystems calculated. efficiencies multigeneration estimated be 60.4% 57.3%, respectively. hot water produced during waste heat recovery process may also for accommodating seafarers ships. Sequential optimization developed optimize operating conditions required power output. comprehensive parametric study conducted investigate effect varying current densities cell working fluid ORC overall combined subsystems. five fluids as candidates—R134a, R600, R601, R152a, R124—is compared. which provides 71.23 kW output, 22.49% 42.76%, respectively, selected best thermodynamic ORC.