Research Paper

Hybrid Fuel Cell Gas Turbine System Design and Optimization

[+] Author and Article Information
Dustin McLarty

e-mail: dfm@apep.uci.edu

Jack Brouwer

e-mail: jb@apep.uci.edu

Scott Samuelsen

e-mail: gss@apep.uci.edu
National Fuel Cell Research Center, Engineering Laboratory Facility,
Irvine, CA 92697-3550

Contributed by the Advanced Energy Systems Division of ASME for publication in the Journal of Fuel Cell Science and Technology. Manuscript received February 25, 2013; final manuscript received April 16, 2013; published online June 17, 2013. Editor: Nigel M. Sammes.

J. Fuel Cell Sci. Technol 10(4), 041005 (Jun 17, 2013) (11 pages) Paper No: FC-13-1024; doi: 10.1115/1.4024569 History: Received February 25, 2013; Revised April 16, 2013

Ultrahigh efficiency, ultralow emission fuel cell gas turbine (FC/GT) hybrid technology represents a significant breakthrough in electric power generation. FC/GT hybrid designs are potentially fuel flexible, dynamically responsive, scalable, low-emission generators. The current work develops a library of dynamic component models and system design tools that are used to conceptualize and evaluate hybrid cycle configurations. The physical models developed for the design analysis are capable of off-design simulation, perturbation analysis, dispatch evaluation, and control development. A parametric variation of seven fundamental design parameters provides insights into design and development requirements of FC/GT hybrids. As the primary generator in most configurations, the FC design choices dominate the system performance, but the optimal design space may be substantially different from a stand-alone FC system. FC operating voltage, fuel utilization, and balance of plant component sizing has large impacts on cost, performance, and functionality. Analysis shows that hybridization of existing fuel cell and gas turbine technology can approach 75% fuel-to-electricity conversion efficiency.

Copyright © 2013 by ASME
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FuelCell Energy Inc., 2006, “Record Electric Efficiency for DFC/Turbine Unit,” Fuel Cells Bull., 2006(4), p. 10. [CrossRef]
FuelCell Energy Inc., 2006, “FCE Power Plant in Earth Day Dedication at Montana Clinic,” Fuel Cells Bull., 2006(6), p. 10. [CrossRef]
Ghezel-Ayagh, H., Walzak, J., Patel, D., Daly, J., Maru, H., Sanderson, R., and Livingood, W., 2005, “State of Direct Fuel Cell/Turbine Systems Development,” J. Power Sources, 152, pp. 219–225. [CrossRef]
Samuelsen, S. and Brouwer, J., 2009, “Fuel Cell/Gas Turbine Hybrid,” Encyclopedia of Electrochemical Power Sources, 1st ed., J.Garche, ed., Elsevier, New York, pp. 124–134.
Rao, A., MacLay, J., and Samuelsen, S., 2004, “Efficiency of Electrochemical Systems,” J. Power Sources, 134, pp. 181–184. [CrossRef]
Richards, G. A., McMillian, M. M., Gemmen, R. S., Rogers, W. A., and Cully, S. R., 2001, “Issues for Low-Emission, Fuel-Flexible Power Systems,” Prog. Energy Combust. Sci., 27, pp. 141–169. [CrossRef]
Lutsey, N., Brodrick, C. J., and Lipman, T., 2007, “Analysis of Potential Fuel Consumption and Emissions Reductions From Fuel Cell Auxiliary Power Units (APUs) in Long-Haul Trucks,” Energy, 32, pp. 2428–2438. [CrossRef]
Lloyd, A. C., 1992, “California Clean Air Initiatives—The Role of Fuel Cells,” J. Power Sources, 37, pp. 241–253. [CrossRef]
Lloyd, A. C., 2000, “The California Fuel Cell Partnership: An Avenue to Clean Air,” J. Power Sources, 86, pp. 57–60. [CrossRef]
Ferrari, M. L., Liese, E., Tucker, D., Lawson, L., Traverso, A., and Massardo, A. F., 2007, “Transient Modeling of the NETL Hybrid Fuel Cell/Gas Turbine Facility and Experimental Validation,” ASME J. Eng. Gas Turbines Power, 129, pp. 1012–1019. [CrossRef]
Mueller, F., Brouwer, J., Jabbari, F., and Samuelsen, S., 2006, “Dynamic Simulation of an Integrated Solid Oxide Fuel Cell System Including Current-Based Fuel Flow Control,” ASME J. Fuel Cell Sci. Technol., 3, pp. 144–154. [CrossRef]
Yi, Y., Rao, A. D., Brouwer, J., and Samuelsen, S. G., 2004, “Analysis and Optimization of a Solid Oxide Fuel Cell and Intercooled Gas Turbine (SOFC-ICGT) Hybrid Cycle,” J. Power Sources, 132, pp. 77–85. [CrossRef]
Winkler, W., Nehter, P., Williams, M. C., Tucker, D., and Gemmen, R., 2006, “General Fuel Cell Hybrid Synergies and Hybrid System Testing Status,” J. Power Sources, 159, pp. 656–666. [CrossRef]
Brouwer, J., Jabbari, F., Leal, E. M., and Orr, T., 2005, “Analysis of a Molten Carbonate Fuel Cell: Numerical Modeling and Experimental Validation,” J. Power Sources, 158, pp. 213–224. [CrossRef]
Roberts, R., Brouwer, J., Liese, E., and Gemmen, R. S., 2005, “Development of Controls for Dynamic Operation of Carbonate Fuel Cell-Gas Turbine Hybrid Systems,” Proceedings of ASME Turbo Expo 2005, Reno-Tahoe, NV, June 6–9, ASME Paper No. GT2005-68774, pp. 325–331. [CrossRef]
Roberts, R., Brouwer, J., Liese, E., and Gemmen, R. S., 2005, “Dynamic Simulation of Carbonate Fuel Cell-Gas Turbine Hybrid Systems,” ASME J. Eng. Gas Turbines Power, 127, pp. 1–8. [CrossRef]
Rashidi, R., Berg, P., and Dincer, I., 2009, “Performance Investigation of a Combined MCFC System,” Int. J. Hydrogen Energy, 34, pp. 4395–4405. [CrossRef]
Roberts, R. A., and Brouwer, J., 2006, “Dynamic Simulation of a Pressurized 220 kW Solid Oxide Fuel-Cell–Gas-Turbine Hybrid System: Modeled Performance Compared to Measured Results,” ASME J. Fuel Cell Sci. Technol., 3, pp. 18–25. [CrossRef]
Burbank, W., Witmer, D., and Holcomb, F., 2008, “Model of a Novel Pressurized SOFC-GT Hybrid Engine,” J. Power Sources, 193, pp. 656–664. [CrossRef]
Milewski, J., Miller, A., and Salacinski, J., 2006, “Off-Design Analysis of SOFC Hybrid System,” Int. J. Hydrogen Energy, 32, pp. 687–698. [CrossRef]
Pratt, J. W., Brouwer, J., and Freeh, J. E., 2004, “Development of a Solid-Oxide Fuel Cell/Gas Turbine Hybrid System Model for Aerospace Applications,” Proceedings of ASME Turbo Expo 2004, Vienna, Austria, June 14–17, ASME Paper No. GT2004-53616, pp. 371–379. [CrossRef]
McLarty, D. F., Samuelsen, S., and Brouwer, J., 2010, “Novel Dynamic Quasi-3-Dimensional High Temperature Fuel Cell Model With Internal Manifolding,” ASME 8th International Conference on Fuel Cell Science, Engineering and Technology, Brooklyn, NY, June 14–16, ASME Paper No. FuelCell2010-33328, pp. 257–268 [CrossRef].
Yang, J. S., Sohn, J. L., and Ro, S. T., 2007, “Performance Characteristics of a Solid Oxide Fuel Cell/Gas Turbine Hybrid System With Various Part-Load Control Modes,” J. Power Sources, 166, pp. 155–164. [CrossRef]
Kaneko, T., Brouwer, J., and Samuelsen, G. S., 2006, “Power and Temperature Control of Fluctuating Biomass Gas Fueled Solid Oxide Fuel Cell and Micro Gas Turbine Hybrid System,” J. Power Sources, 160, pp. 316–325. [CrossRef]


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Fig. 1

Hybrid design methodology

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Fig. 2

Empirical compressor and turbine maps

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Fig. 3

SOFC hybrid cycle diagram

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Fig. 4

Design impact of stack temperature profile

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Fig. 5

Design impact of stack power density

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Fig. 6

Design impact of stack fuel utilization

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Fig. 7

Design impact of air preheating

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Fig. 8

Design impact of system pressure

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Fig. 9

Design impact of turbine efficiency

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Fig. 10

Design impact of compressor efficiency

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Fig. 11

Design impact of average cell temperature

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Fig. 12

Voltage and efficiency as dependent variables

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Fig. 13

Recirculation and turbine % power as dependent variables

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Fig. 14

System efficiency and turbine % power as dependent variables



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