The characterization of the indirect methanol fuel cell (IMFC) system is done using the simulation model developed by the Fuel Cell Vehicle Modeling Program (FCVNT) at the University of California - Davis. The basic components that exist within the model as well as the interactions between those components are investigated with respect to how they affect the steady state and dynamic operation of the system. By investigating the steady state efficiencies, the authors find that the normalized peak efficiency for the system occurs around 5 % of full power. This implies that, similar to the direct hydrogen system, low power operation will provide better system efficiency compared to higher power operation. While this tends to hold true, the magnitude of the benefit is unclear because steady state efficiencies can be misleading. For this reason, the dynamic efficiency of the system is analyzed over two drive cycles, the FUDS and the US06. Here the authors find that the dynamic efficiency is significantly below the expected steady state efficiency. For the system modeled, the dynamic efficiency is 10 % lower than the steady-state efficiency on the FUDS and 14 % lower for the US06 cycle. By investigating second by second averaged dynamic efficiency values of each component, the authors find that the reduced dynamic efficiency can be primarily attributed to the fuel processor.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Simulation and performance of an indirect methanol PEM fuel cell system


    Additional title:

    Simulation und Leistung eines indirekten PEM-Methanol-Brennstoffzellensystems


    Contributors:


    Publication date :

    2000


    Size :

    12 Seiten, 10 Bilder, 9 Quellen


    Remarks:

    (nicht paginiert)


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




    Simulated Performance of an Indirect Methanol Fuel Cell System

    Eggert, Anthony / Friedman, David / Cunningham, Joshua et al. | SAE Technical Papers | 2001


    Simulated performance of an indirect methanol fuel cell system

    Eggert,A. / Friedman,D.J. / Ramaswamy,S. et al. | Automotive engineering | 2001



    A Simulation Model for an Indirect Methanol Fuel Cell Vehicle

    Hauer, Karl-Heinz / Moore, R. M. / Ramaswamy, S. | SAE Technical Papers | 2000


    Characteristics of an indirect-methanol fuel cell system

    Eggert, Anthony / Friedman, David / Badrinarayanan, P. et al. | AIAA | 2000