A thermodynamic model for a gas turbine-fuel cell hybrid is created and described in the paper. The effects of gas turbine design parameters such as compressor pressure ratio, compressor efficiency, turbine efficiency, and mass flow are considered. The model allows to simulate the effects of fuel cell design parameters such as operating temperature, pressure, fuel utilization, and current density on the cycle efficiency. This paper discusses, based on a parametric study, optimum design parameters for a hybrid gas turbine. Because it is desirable to use existing gas turbine designs for the hybrids, the requirements for this hybridization are considered. Based on performance data for a typical industrial single shaft gas turbine, a model to predict the off-design performance is developed. In the paper, two complementary studies are performed: The first study attempts to determine the range of cycle parameters that will lead to a reasonable cycle efficiency. Next, an existing gas turbine, that fits into the previously established range of parameters, will be studied in more detail. Conclusions from this paper include the feasibility of using existing gas turbine designs for the proposed cycle.
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November 2005
This article was originally published in
Journal of Fuel Cell Science and Technology
Research Papers
Parameter Optimization on Combined Gas Turbine-Fuel Cell Power Plants
Rainer Kurz
e-mail: kurẕraineṟx@solarturbines.com
Rainer Kurz
Solar Turbines Incorporated
, 9330 Skypark Ct., San Diego, CA 92123
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Rainer Kurz
Solar Turbines Incorporated
, 9330 Skypark Ct., San Diego, CA 92123e-mail: kurẕraineṟx@solarturbines.com
J. Fuel Cell Sci. Technol. Nov 2005, 2(4): 268-273 (6 pages)
Published Online: March 28, 2005
Article history
Received:
January 3, 2005
Revised:
March 28, 2005
Citation
Kurz, R. (March 28, 2005). "Parameter Optimization on Combined Gas Turbine-Fuel Cell Power Plants." ASME. J. Fuel Cell Sci. Technol. November 2005; 2(4): 268–273. https://doi.org/10.1115/1.2041669
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