Exhaust emissions from the two methanol-powered buses used in the California Methanol Bus Demonstration have been characterized. The M.A.N. SU 240 bus is powered by M.A.N.'s D2566 FMUH methanol engine, and utilizes catalytic exhaust aftertreatment. The GMC RTS II 04 bus is powered by a first-generation DDAD 6V-92TA methanol engine without exhaust aftertreatment. Emissions of HC, CO, NOxide, unburned methanol, aldehydes, total particulates, and soluble fraction of particulate were determined for both buses over steady-state and transient chassis dynamometer test cycles. Emission levels from the M.A.N. bus were considerably lower than those from the GMC bus, with the exception of NOxide. Comparison of emission levels from methanol-and diesel-powered buses indicates that substantial reduction in emissions (especially particulate and NOxide) are possible with careful implementation of methanol fueling.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Emissions Characterization of Two Methanol Fueled Transit Buses


    Contributors:
    T. L. Ullman (author) / C. T. Hare (author)

    Publication date :

    1986


    Size :

    133 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Californias Experience with Methanol-Fueled Transit Buses

    Jackson,M.D. / Renner,R.A. / Smith,K.D. et al. | Automotive engineering | 1984


    Vehicle performance and exhaust gas emissions of in-use methanol fueled transit buses

    Bata,R. / Lyons,D. / Clark,N. et al. | Automotive engineering | 1996


    Chassis Dynamometer Emissions Testing Results for Diesel and Alternative-Fueled Transit Buses

    Porter, Harvey / Dunlap, Lauren S. / Ikeda, Randal et al. | SAE Technical Papers | 1993


    Chassis Dynamometer Emissions Testing Results for Diesel and Alternative-Fueled Transit Buses

    Dunlap,L.S. / Pellegrin,V. / Ikeda,R. et al. | Automotive engineering | 1993


    Emissions from Methanol, Ethanol, and Diesel Powered Urban Transit Buses

    Prakash, Chandra / Rideout, Greg / Kirshenblatt, Morrie | SAE Technical Papers | 1994