Control of diesel particulate matter in underground coal mines
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Control of diesel particulate matter in underground coal mines

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      "The U.S. Bureau of Mines has conducted research on methods to reduce and to measure diesel particulate matter (dpm) aerosols in underground coal mines. One objective of this report is to present findings from an investigation of the dpm reductions obtained by an engine-mounted integrated control system consisting of a dry system (ds) and a diesel particulate filter (dpf). Another objective is to present results from the use of a size-selective personal sampler to measure dpm concentrations in an underground coal mine. Bureau laboratory tests of the integrated dry system and diesel particulate filter (ds-dpf) have shown that dpm emissions can be reduced up to 97 pct with little change in gaseous emission concentrations. The ds-dpf is undergoing certification tests conducted by the Mine Safety and Health Administration (MSHA). Subsequent to passing all safety requirements, it will be tested in an underground coal mine. A baseline survey of dpm concentrations and aerosol size distributions in a cooperating mine was completed in August 1988. A prototype dpm personal sampler was tested during this survey. Based on results from this test, an improved unit has been developed. This unit is scheduled for extensive field testing by MSHA in 1989." - NIOSHTIC-2

      NIOSHTIC no. 10007349

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