Technical Paper
Evaluation of a Particulate Trap System and an Ethanol Injection/Catalyst System on an Upgraded DDC 6V-92 TA Transit Bus Engine
1993-08-01
931787
Transit agencies continue to be the focus of heavy-duty diesel engine emission reduction programs by using Federal regulations as well as self-imposed mandates to reduce smoke and particulate emissions. Such is the case with the Miami Valley Regional Transit Authority, which wanted to characterize the emissions of a 1985 model year Detroit Diesel Corporation (DDC) 6V-92 TA diesel engine that was rebuilt using DDC Upgrade Kit 10-B. In addition to determining the baseline exhaust emissions from the upgraded engine, two separate emission reduction technologies were evaluated. The first system evaluated was an electrically regenerated particulate trap oxidizer developed jointly by Donaldson and 3M The second technology evaluated was an ethanol injection system in conjunction with an oxidizing catalyst designed and manufactured by Midwest Power Concepts (MPC) Emission tests were performed in accordance with the heavy-duty diesel engine transient Federal Test Procedure (FTP).
