Solid oxide fuel cells (SOFCs) are particular promising electrochemical generators for their high operating temperature that makes them suitable for integration with gas turbine cycles and cogeneration. The kind of fuel cell taken into account is the tubular SOFC technology, mainly developed by Siemens-Westinghouse. The SOFC module is fed with natural gas with internal reforming and internal air preheating. Elevated pressures are adopted in order to increase both fuel cell efficiency and power density. The inlet air temperature is set to 630 °C, and the inlet fuel temperature to 200 °C. The heat generated by irreversibility at the electrodes structure is given to the fuel and air flow, and partially lost by the module external carter. A significant fraction of the heat is used by the endothermic reforming reactions, thus reducing the requested cooling air flow and enhancing the fuel heating value. The SOFC module finally generates a single outlet stream: both cathode and anode flue gases (depleted air and depleted fuel) react burning in a combustion chamber. Sometimes it is possible flue gases to preheat the inlet air flow and afterwards to expand in a gas turbine driving the turboblower. The authors consider the matching between the SOFC module and a system consisting of two coaxial turbomachines, i.e. a turbine and a turboblower. They analyse a turboblower flowed by air led into the SOFC at 630 °C and separately a gas turbine driving the turboblower, but flowed by a different fluid consisting of SOFC exhausted gases. For sake of simplicity, despite the high turbine inlet temperature (TIT), they assume there is not cooling of the blades. In order to increase the efficiency of the whole system they have studied the variation of the main parameters of the two turbomachines, especially the compression ratio and they have found that only a correct employment of flue gases enthalpy can achieve a good efficiency of the power plant. Furthermore they have used NIST-JANAF coefficients to describe the polytropic processes both of the compression and of the expansion.
Skip Nav Destination
Close
Sign In or Register for Account
ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology
May 23–25, 2005
Ypsilanti, Michigan, USA
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-3764-5
PROCEEDINGS PAPER
Analysis of a Gas Turbine Almost Real Open Cycle Linked to the SOFC Module Behaviour
Fabio Lo Mastro,
Fabio Lo Mastro
University of Palermo, Palermo, Italy
Search for other works by this author on:
Giuseppe La Marca,
Giuseppe La Marca
University of Palermo, Palermo, Italy
Search for other works by this author on:
Gandolfo Blando
Gandolfo Blando
University of Palermo, Palermo, Italy
Search for other works by this author on:
Fabio Lo Mastro
University of Palermo, Palermo, Italy
Giuseppe La Marca
University of Palermo, Palermo, Italy
Gandolfo Blando
University of Palermo, Palermo, Italy
Paper No:
FUELCELL2005-74091, pp. 259-264; 6 pages
Published Online:
October 13, 2008
Citation
Lo Mastro, F, La Marca, G, & Blando, G. "Analysis of a Gas Turbine Almost Real Open Cycle Linked to the SOFC Module Behaviour." Proceedings of the ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology. 3rd International Conference on Fuel Cell Science, Engineering and Technology. Ypsilanti, Michigan, USA. May 23–25, 2005. pp. 259-264. ASME. https://doi.org/10.1115/FUELCELL2005-74091
Download citation file:
- Ris (Zotero)
- Reference Manager
- EasyBib
- Bookends
- Mendeley
- Papers
- EndNote
- RefWorks
- BibTex
- ProCite
- Medlars
Close
Sign In
2
Views
0
Citations
Related Proceedings Papers
Related Articles
The Effect of Size on Optimization of Solid Oxide Fuel Cell/Gas Turbine Hybrid Cycles
J. Eng. Gas Turbines Power (September,2010)
Cycle Analysis of Gas Turbine–Fuel Cell Cycle Hybrid Micro Generation System
J. Eng. Gas Turbines Power (October,2004)
Exergy Analysis of a Gas Turbine Cycle With Steam Generation for Methane Conversion Within Solid Oxide Fuel Cells
J. Fuel Cell Sci. Technol (August,2008)
Related Chapters
Numerical Study on a Novel SOFC with Bi-Layer Interconnector
Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)
An Easy-to-Approach Comprehensive Model and Computation for SOFC Performance and Design Optimization
Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)
Effect of Segmented Contacts on Fuel Cell Performance Using 3-D Modelling
International Conference on Software Technology and Engineering, 3rd (ICSTE 2011)