Semester
Summer
Date of Graduation
2003
Document Type
Thesis
Degree Type
MS
College
Statler College of Engineering and Mineral Resources
Department
Mechanical and Aerospace Engineering
Committee Chair
Gregory J. Thompson.
Abstract
Heavy-duty diesel engines are known to emit concentrations of harmful compounds of oxides of nitrogen (NOx) and particulate matter (PM). As a means of emissions control, engine dynamometer certification is currently employed. Current certification cycles provide for standardized comparisons, but may not be indicative of real-world emissions. Accurate in-use emissions testing would provide more realistic engine emissions values.;To examine the accuracy of the West Virginia University Mobile Emissions Measurement System (MEMS), on-road emissions tests were performed with six different diesel-powered vehicles. Exhaust species measured by MEMS were NO x and CO2, reported on a brake-specific basis. Information obtained during on-road emissions tests was implemented in the creation of a simulated in-use engine dynamometer cycle, and the system was compared against an engine dynamometer laboratory.;The ability to accurately generate an in-use driving cycle for an engine dynamometer was studied, and variables affecting route repeatability were measured. (Abstract shortened by UMI.).
Recommended Citation
Gibble, John Curtis, "Comparison of heavy-duty diesel engine emissions between an on-road route and engine dynamometer simulated on-road cycle" (2003). Graduate Theses, Dissertations, and Problem Reports. 1349.
https://researchrepository.wvu.edu/etd/1349