Development of the Texas Drayage Truck Cycle and Its Use to Determine the Effects of Low Rolling Resistance Tires on the NOX Emissions and Fuel Economy The University of Texas at Austin

Format:

Conference/Event

Author/Creator:

Diller, Timothy T., author.

Conference Name:

SAE World Congress & Exhibition (2009-04-20 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2009

Summary:

Trucks operating in inter-modal (drayage) operation in and around port and rail terminals, are responsible for a large proportion of the emissions of NOX, which are problematic for the air quality of the Houston and Dallas/Ft. Worth metro areas. A standard test cycle, called the Texas Dray Truck Cycle, was developed to represent the operation of heavy-duty diesel trucks in dray operations. The test cycle reflects the substantial time spent at idle (~45%) and the high intensity of the on-road portions. This test cycle was then used in the SAE J1321 test protocol to evaluate the effect on fuel consumption and NOX emissions of retrofitting dray trucks with light-weight, low-rolling resistance wide-single tires.In on-track testing, a reduction in fuel consumption of 8.7% was seen, and NOX emissions were reduced by 3.8% with the wide single tires compared to the conventional tires. Without considering the test-cycle idle periods, the reductions were 9.3% and 7.4% for fuel consumption and NOX emissions, respectively

Notes:

Vendor supplied data

Publisher Number:

2009-01-0943

Access Restriction:

Restricted for use by site license