Technical Paper
Emissions from Heavy-Duty Trucks Converted to Compressed Natural Gas
1993-11-01
932950
Natural gas appears to be the alternative fuel of choice for both light-duty and heavy-duty applications. Conversion kits are typically retrofitted to existing gasoline or diesel fueled engines. One problem area is the very limited amount of meaningful exhaust emissions test data on vehicles converted to natural gas, especially for heavy-duty vehicles. In an attempt to characterize the air quality implications of a large-scale natural gas conversion of the City of Houston's fleet of over 9,000 vehicles. a demonstration program was initiated Nine of the City's heavy-duty trucks were converted by the City to operate on compressed natural gas (CNG) fuel.
