Record Display for the EPA National Library Catalog


Main Title Diesel Particulate Measurement Research, 2007. Executive Summary Report.
Author I. A. KHALEK
CORP Author Southwest Research Inst., San Antonio, TX.; Coordinating Research Council, Inc., Atlanta, GA.; Department of Energy, Washington, DC.; Environmental Protection Agency, Washington, DC.; California State Air Resources Board, Sacramento.
Year Published 2008
Report Number SWRI-03-10415; CRC-E-66; Proj. E-66
Stock Number PB2008-110095
Additional Subjects Diesel fuels ; Exhaust emissions ; Particulates ; Measurement ; Filters ; Diesel engines ; Real time operations ; Particulate matter ; Teflo filter ; Dilution stream ; Diesel particulate measurement
Library Call Number Additional Info Location Last
NTIS  PB2008-110095 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 30p
The objective of Project E-66 was to explore the benefit of more specific definitions of several variables on PM mass measurement. Parameter evaluations included secondary dilution tunnel geometry and residence time, filter face velocity, dilution air temperature, means of achieving the 47 degrees C, plus or minus, 5 degrees C filter face temperature, primary and secondary dilution ratio requirements, verification of filter material influence, filter equilibration time (currently time periods of 30 minutes to 60 hours are allowed), primary and secondary dilution air filtration requirements (Currently, 98 percent efficient HEPA filtration is required for primary dilution air, and 99.97 percent efficient filtration for secondary dilution air). The primary goal for this project was to investigate the above noted factors with the intention of improving future PM measurement. Additional investigations compared the PM emission performance of partial flow sampling system (PFSS) units and real-time PM measurement instruments to the Constant Volume Sampler (CVS). Phase 1 investigated PM measurement artifacts and variability, filter face velocity, and real time particle instruments. Phase 2 investigated efficiency and sampling time using TEFLO filters. Phase 3 evaluated several PFSS units used in different ways. This report summarizes main conclusions for all 3 phases, and includes recommendations for future activities in PM measurement from diesel engines.