This work discusses the thermodynamic analysis of integrated gasification fuel cell plants, where a simple cycle gas turbine works in a hybrid cycle with a pressurized intermediate temperature–solid oxide fuel cell (SOFC), integrated with a coal gasification and syngas cleanup island and a bottoming steam cycle (reflecting the arrangement of integrated gasification combined cycle (IGCC) plants) to optimize heat recovery and maximize efficiency. This work addresses the optimization of the plant layout, discussing the effect of the SOFC fuel utilization factor and the possibility of a fuel bypass to increase the gas turbine total inlet temperature and reduce the plant expected investment costs. Moreover, a discussion of technological issues related to the feasibility of the connection among the plant high temperature components is carried out, presenting the effects of different limitations of the maximum temperatures reached by the plant piping. With the proposed plant configurations, which do not include—apart from the SOFC—any component far from the nowadays best available technologies, a net electric lower heating value efficiency approaching 52–54% was calculated, showing a remarkable increase with respect to state-of-the-art advanced IGCCs.
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e-mail: matteo.romano@polimi.it
e-mail: stefano.campanari@polimi.it
e-mail: vincenzo.spallina@mail.polimi.it
e-mail: giovanni.lozza@polimi.it
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August 2011
This article was originally published in
Journal of Fuel Cell Science and Technology
Research Papers
Thermodynamic Analysis and Optimization of IT-SOFC-Based Integrated Coal Gasification Fuel Cell Power Plants
Matteo C. Romano,
Matteo C. Romano
Department of Energy,
e-mail: matteo.romano@polimi.it
Politecnico di Milano
, Via Lambruschini 4, 20156 Milano, Italy
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Stefano Campanari,
Stefano Campanari
Department of Energy,
e-mail: stefano.campanari@polimi.it
Politecnico di Milano
, Via Lambruschini 4, 20156 Milano, Italy
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Vincenzo Spallina,
Vincenzo Spallina
Department of Energy,
e-mail: vincenzo.spallina@mail.polimi.it
Politecnico di Milano
, Via Lambruschini 4, 20156 Milano, Italy
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Giovanni Lozza
Giovanni Lozza
Department of Energy,
e-mail: giovanni.lozza@polimi.it
Politecnico di Milano
, Via Lambruschini 4, 20156 Milano, Italy
Search for other works by this author on:
Matteo C. Romano
Department of Energy,
Politecnico di Milano
, Via Lambruschini 4, 20156 Milano, Italye-mail: matteo.romano@polimi.it
Stefano Campanari
Department of Energy,
Politecnico di Milano
, Via Lambruschini 4, 20156 Milano, Italye-mail: stefano.campanari@polimi.it
Vincenzo Spallina
Department of Energy,
Politecnico di Milano
, Via Lambruschini 4, 20156 Milano, Italye-mail: vincenzo.spallina@mail.polimi.it
Giovanni Lozza
Department of Energy,
Politecnico di Milano
, Via Lambruschini 4, 20156 Milano, Italye-mail: giovanni.lozza@polimi.it
J. Fuel Cell Sci. Technol. Aug 2011, 8(4): 041002 (11 pages)
Published Online: March 25, 2011
Article history
Received:
March 15, 2010
Revised:
November 4, 2010
Online:
March 25, 2011
Published:
March 25, 2011
Citation
Romano, M. C., Campanari, S., Spallina, V., and Lozza, G. (March 25, 2011). "Thermodynamic Analysis and Optimization of IT-SOFC-Based Integrated Coal Gasification Fuel Cell Power Plants." ASME. J. Fuel Cell Sci. Technol. August 2011; 8(4): 041002. https://doi.org/10.1115/1.4003018
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