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Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
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Author | Amati, Valentina Sciubba, Enrico Toro, Claudia |
Copyright Year | 2008 |
Abstract | The paper presents the exergy analysis of a natural gas fuelled energy conversion process consisting of a hybrid solid oxide fuel cell coupled with a gas turbine. The fuel is partly processed in a reformer and then undergoes complete reforming in an internal reforming planar SOFC stack (IRSOFC). The syngas fuels in turn a standard gas turbine cycle that drives the fuel compressor and generates excess shaft power. Extensive heat recovery is enforced both in the Gas Turbine and between the topping SOFC and the bottoming GT. Two different configurations have been simulated and compared on an exergy basis: in the first one, the steam needed to support the external and the internal reforming reactions is completely supplied by an external Heat Recovery Steam Generator (HRSG), while in the second one that steam is mainly obtained by recirculating part of the steam-rich anode outlet stream. The thermodynamic model of the fuel cell system has been developed and implemented into the library of a modular object-oriented Process Simulator, Camel-Pro®; then, by means of this simulator, the exergetic performance of the two alternative configurations has been analyzed. A detailed analysis of the exergy destruction at component level is presented, to better assess the distribution of irreversibilities along the process and to gain useful design insight. |
Starting Page | 721 |
Ending Page | 731 |
Page Count | 11 |
File Format | |
ISBN | 9780791848692 |
DOI | 10.1115/IMECE2008-68339 |
e-ISBN | 9780791838402 |
Volume Number | Volume 8: Energy Systems: Analysis, Thermodynamics and Sustainability; Sustainable Products and Processes |
Conference Proceedings | ASME 2008 International Mechanical Engineering Congress and Exposition |
Language | English |
Publisher Date | 2008-10-31 |
Publisher Place | Boston, Massachusetts, USA |
Access Restriction | Subscribed |
Subject Keyword | Cycles Solid oxide fuel cells Heat recovery steam generators Compressors Fuels Heat recovery Syngas Design Gas turbines Exergy analysis Fuel cells Steam Energy conversion Hybrid power systems Exergy Anodes Turbines Natural gas |
Content Type | Text |
Resource Type | Article |
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