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Title: FUEL CELL/MICRO-TURBINE COMBINED CYCLE

Technical Report ·
DOI:https://doi.org/10.2172/802823· OSTI ID:802823

A wide variety of conceptual design studies have been conducted that describe ultra-high efficiency fossil power plant cycles. The most promising of these ultra-high efficiency cycles incorporate high temperature fuel cells with a gas turbine. Combining fuel cells with a gas turbine increases overall cycle efficiency while reducing per kilowatt emissions. This study has demonstrated that the unique approach taken to combining a fuel cell and gas turbine has both technical and economic merit. The approach used in this study eliminates most of the gas turbine integration problems associated with hybrid fuel cell turbine systems. By using a micro-turbine, and a non-pressurized fuel cell the total system size (kW) and complexity has been reduced substantially from those presented in other studies, while maintaining over 70% efficiency. The reduced system size can be particularly attractive in the deregulated electrical generation/distribution environment where the market may not demand multi-megawatt central stations systems. The small size also opens up the niche markets to this high efficiency, low emission electrical generation option.

Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Organization:
US Department of Energy (US)
DOE Contract Number:
AC26-98FT40454
OSTI ID:
802823
Report Number(s):
AC26-98FT40454-02; TRN: US200223%%739
Resource Relation:
Other Information: PBD: 1 Dec 1999
Country of Publication:
United States
Language:
English