Semester

Summer

Date of Graduation

2007

Document Type

Thesis

Degree Type

MS

College

Statler College of Engineering and Mineral Resources

Department

Mechanical and Aerospace Engineering

Committee Chair

Mridul Gautam

Abstract

A study was conducted for the West Virginia University (WVU) particulate matter (PM) sampling system designed to comply with the updated 2007 Code of Federal Regulations (CFR) Title 40 Pt 86 Subpart N, issued by the United States (US) Environmental Protection Agency (EPA) which includes a new set of requirements regarding the PM emissions from heavy duty diesel engines (HDDEs). The 2007 compliant PM system was installed within WVU's Engine and Emissions Research Laboratory (EERL) and an analysis was performed to determine which operating system conditions produced the most repeatable system results. The data from the 2007 PM system were compared with the pre-2007 PM system to provide a system comparison.;The three test conditions, secondary dilution ratio (SDR), filter face velocity (FFV), and filter media, had a major effect on the resulting PM deposition. Both PM systems showed similar trends across tests with like testing conditions. It was determined that the 2007 CFR compliant PM system was capable of producing repeatable results with a common coefficient of variation (CV) of less then 2%, across a range of moderate SDRs, FFVs, and certain filter medias. Both Teflo and Tx40 filters produced efficient and repeatable results and are recommended with SDRs of 1/1 to 2/1 with FFVs between 1.0 and 1.5 cfm for future work with the WVU 2007 compliant PM collection system.

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