Technical Paper
The Effect of Ambient Temperature, Humidity, and Engine Speed on Idling Emissions from Heavy-Duty Diesel Trucks
2003-03-03
2003-01-0290
A significant fraction of diesel emissions can be attributed to heavy-duty diesel vehicles at idle conditions during which power is being used for systems such as cabin heating or cooling. Although, a variety of low emission, auxiliary power solutions already exist for HDDV trucks, they are not in wide spread use. Moreover, very little work has been done to date to quantify the total emissions and fuel consumption from truck idling. Accordingly, the U.S. Environmental Protection Agency, in collaboration with the New Jersey Department of Transportation, the U.S. Army Aberdeen Test Center, Oak Ridge National Laboratory and Rowan University has initiated a study to quantify the idling emissions and fuel consumption rates for HDDV trucks. Testing was performed in an environmental chamber on five different class 8 trucks with model years ranging from 1990's to 2001.
