1983-11-07

CNG-Dual Fuel Operation of an Urban Bus 830896

The dual-fuel operation of a Melbourne urban bus, with turbo-charged diesel engine, using CNG is investigated. Extensive instrumented engine testing established the upper limit to diesel fuel substitution at 90%. Low load substitution operation exhibits efficiency loss and indicates the control profile for good efficiency. Operational analysis of bus duty and economic analysis indicate large savings by dual fuel operation. The pilot bus conversion is described.

SAE MOBILUS

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