Date of Graduation
2001
Document Type
Thesis
Degree Type
MS
Committee Chair
Nigel N. Clark
Abstract
The most realistic procedure for the determination of regulated diesel engine exhaust emissions is over-the-road testing. A Mobile Emissions Measurement System (MEMS) was developed by West Virginia University for over-the-road emissions testing. A component of this system is the flow rate measurement device, an Annubar, incorporated within a flow tube. To measure flow rate from this differential pressure device, a differential and absolute pressure transducer had to be selected. Experimentation was performed and it was determined that a Validyne P365 differential pressure transducer and an Omega PX-203 absolute transducer were optimal. Flow pulsations are present in diesel engine exhaust and must be minimized when measuring flow rate. A dead volume of 1.87 in3 was constructed after size experimentation and employed with the Validyne P365 transducer. The complete flow rate measurement system was tested to investigate its integration with the entire MEMS. It was found that the flow rate measurement system was successfully integrated.
Recommended Citation
Fuller, Andrew David, "A flow rate measurement system for a mobile emissions measurement system." (2001). Graduate Theses, Dissertations, and Problem Reports. 10552.
https://researchrepository.wvu.edu/etd/10552