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Modelling and Simulation of a Hybrid Solid Oxide Fuel Cell Coupled with a Gas Turbine Power Plant

Author(s): Valentina Amati | Enrico Sciubba | Claudia Toro | Luca Andreassi

Journal: International Journal of Thermodynamics
ISSN 1301-9724

Volume: 12;
Issue: 3;
Start page: 131;
Date: 2009;
Original page

Keywords: solid oxide fuel cells | combined cycles | process modeling | numerical simulation

The paper presents a simulation of a hybrid solid oxide fuel cell-gas turbine (SOFC-GT) power generation system fueled by natural gas. In the system considered, the unreacted fuel from a topping solid oxide fuel cell is burnt in an afterburner to feed a bottoming gas turbine and produce additional power. Combustion gas expands in the gas turbine after having preheated the inlet air and fuel and it is used to generate steam required by the reforming reactions. A novel thermodynamic model has been developed for the fuel cell and implemented into the library of a modular object-oriented Process Simulator, CAMELPro™. The relevant plant performance indicators have been analyzed to evaluate the incremental increase in efficiency brought about by the introduction of the gas turbine and heat regeneration system. Simulations were performed for different values of the main plant parameters.This paper is an updated version of a paper published in the ECOS'08 proceedings. 
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