Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Toghiani, Hossein
Committee Member
George, E. Clifford
Committee Member
Molen, Marshall G.
Committee Member
Toghiani, K. Rebecca
Date of Degree
5-5-2007
Document Type
Graduate Thesis - Open Access
Major
Chemical Engineering
Degree Name
Master of Science
College
James Worth Bagley College of Engineering
Department
Dave C. Swalm School of Chemical Engineering
Abstract
The addition of Tier 2 standards by United States Environmental Protection Agency (EPA) has increased focus on light-duty vehicle emissions. In this study, a diesel-electric hybrid vehicle was used for testing under the Challenge X program. The diesel engine was powered by a 20% soy-based biodiesel - 80% diesel blend, and the electric motor received its energy from a 330 volt Nickle Metal Hydride battery pack. The diesel engine, notorious for high emissions of nitrogen oxides (NOx) and particulate matter (PM), requires aftertreatment of these emissions to achieve Tier 2 EPA compliance. The primary focus of this thesis is use of a urea injection selective catalytic reduction (SCR) system to reduce NOx emissions. Also, a diesel particulate filter (DPF) was employed for PM reduction purposes. Significant decreases in both NOx and PM emissions were achieved.
URI
https://hdl.handle.net/11668/15218
Recommended Citation
Crawford, Kyle Elliott, "Impact of urea injection on NOx emissions for MSU Challenge X hybrid electric vehicle using a green fuel" (2007). Theses and Dissertations. 2610.
https://scholarsjunction.msstate.edu/td/2610
