SAE technical papers on CD-ROM/SAE technical paper series · 1986 · 17 citations · 6 references
EngineeringAerospace EngineeringAutomotive EngineeringAir PollutionInternal Combustion EnginesTransportationAir Pollutant EmissionsEmissions TestingEngine EmissionsEngine Performance CharacteristicsParticulate MatterVehicle EmissionsChassis Dynamometer TestingEmissions Performance AssessmentEngine Emissions TestingNon-exhaust Vehicle EmissionsTransportation EmissionsTransportation Emissions AnalysisVehicle Emissions MeasurementVehicle Exhaust Emissions
<div class="htmlview paragraph">Emissions Iron 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 utilises catalytic exhaust af tertreatment. The GMC RTS II 04 bus is powered by a first-generation DDAD 6V-92TA methanol engine without exhaust aftertreatment. Emissions of HC, CO, NO<sub>x</sub>, unburned methanol, aldehydes, total particulates, and the 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 NO<sub>x</sub>, Comparison of emission levels fro n methanol-and diesel-powered buses indicates that substantial reductions in emissions are possible with careful implementation of methanol fueling.</div>
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