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Mining Publication: Apparatus for Measuring Diesel Tailpipe Emissions in Underground Mines
Keywords: Diesel particulate matter Particulate matter measures
Original creation date: April 1992
Authors: DH Carlson, TR Taubert, JH Johnson
Report of Investigations - April 1992
Download PDF Document (1.45 MB)
NIOSHTIC2 Number: 10011417
Minneapolis, MN: U.S. Department of the Interior, Bureau of Mines, TN 431, 1994 Apr; :1-2
The U.S. Bureau of Mines and Michigan Technological University (MTU) are collaborating to develop an apparatus for measuring diesel tailpipe emissions in underground mines. A tailpipe Emissions Measurement Apparatus (EMA) is described that dilutes diesel exhaust and measures the concentrations of diesel particulate matter (DMP), CO, CO2, NO, and NO2 at known dilution ratios. The EMA was evaluated by side-by-side comparison of its measurements with those by laboratory-grade instruments. Concentrations of CO and CO2 measured by the EMA were usually within +/-14 pct of concentrations measured by laboratory-grade instruments for CO and +/-20 pct for CO2. EMA-measured DPM concentrations were, on average, 29 pct lower than those measured by laboratory-grade instruments, with the differences being fairly consistent. The CO and CO2 differences are related to the method of calculating the EMA's dilution ratio, and the difference in DPM concentrations is attributed to thermophoretic and/or condensation losses related to the EMA's unheated sample probe. Preliminary analysis of data obtained with a heated sampling probe and modifications in the sampling procedures have indicated reduced variability in dpm and in the calculated dilution ratios.
Image of publication Apparatus for Measuring Diesel Tailpipe Emissions in Underground MinesReport of Investigations - April 1992
Download PDF Document (1.45 MB)
NIOSHTIC2 Number: 10011417
Minneapolis, MN: U.S. Department of the Interior, Bureau of Mines, TN 431, 1994 Apr; :1-2
See Also
Diesel Exhaust Aerosol, Review of Measurement Technology
Differential Pressure as a Measure of Particulate Matter Emissions from Diesel Engines
Instrumentation for Diesel Particulate Matter Emissions Research
Performance Evaluation of Diesel Particulate Filter Technology in the Underground Environment
Real-time Diesel Particulate Monitor for Underground Mines
Real-Time DPM Ambient Monitoring in Underground Mines
Role of Lubrication Oil in Particulate Emissions from a Hydrogen-Powered Internal Combustion Engine
Sampling Results of the Improved SKC� Diesel Particulate Matter Cassette
Size Distribution and Deposition in Human Respiratory Tract: Particle Mass and Number
Technology News 431 - Apparatus for Sampling and Measuring Diesel Tailpipe Emissions
Page last reviewed: July 22, 2016
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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