The paper presents a simulation of a hybrid solid oxide fuel cell-gas turbine (SOFC-GT) power generation system fuelled by natural gas. The system consists of a fuel processor (pre-reformer), an internal reforming SOFC stack (IRSOFC), a combustor, a gas turbine, two compressors (for air and fuel) and three regenerators. A novel thermodynamic model of the fuel cell has been developed and implemented into the library of a modular object-oriented Process Simulator, Camel-Pro®. The relevant plant performance indicators extracted from the simulation results have been analyzed to evaluate the incremental increase in efficiency brought about by the introduction of the gas turbine and of the three regenerators. Simulations were performed for different values of the FC operating pressure, of the turbine inlet temperature, of the oxygen utilization ratio and of the current density. Energy balances are performed not only for the whole plant but also for each component in order to evaluate the distribution of the thermodynamic inefficiencies throughout the system.
Modelling and Simulation of a Hybrid Solid Oxide Fuel Cell Coupled with a Gas Turbine Power Plant / Luca, Andreassi; Valentina, Amati; Toro, Claudia; Enrico, Sciubba. - (2008), pp. 1837-1848. (Intervento presentato al convegno 21st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2008 tenutosi a Cracow-Gliwice; Poland nel June 24 – 27, 2008).
Modelling and Simulation of a Hybrid Solid Oxide Fuel Cell Coupled with a Gas Turbine Power Plant
TORO, CLAUDIA;
2008
Abstract
The paper presents a simulation of a hybrid solid oxide fuel cell-gas turbine (SOFC-GT) power generation system fuelled by natural gas. The system consists of a fuel processor (pre-reformer), an internal reforming SOFC stack (IRSOFC), a combustor, a gas turbine, two compressors (for air and fuel) and three regenerators. A novel thermodynamic model of the fuel cell has been developed and implemented into the library of a modular object-oriented Process Simulator, Camel-Pro®. The relevant plant performance indicators extracted from the simulation results have been analyzed to evaluate the incremental increase in efficiency brought about by the introduction of the gas turbine and of the three regenerators. Simulations were performed for different values of the FC operating pressure, of the turbine inlet temperature, of the oxygen utilization ratio and of the current density. Energy balances are performed not only for the whole plant but also for each component in order to evaluate the distribution of the thermodynamic inefficiencies throughout the system.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
