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Methods for the Selective Sampling of Diesel Particulate in Mine Dust Aerosols.

PB88130810

Publication Date	1986
Personal Author	Marple, V. A.; Kittelson, D. B.; Rubow, K. L.; Fang, C. P.
Page Count	110
Abstract	The paper describes an investigation into time-integrated and real-time methods for determining the diesel exhaust particulate concentration in underground mines, particularly coal mines. The microorifice uniform deposit impactor is recommended for obtaining the time-integrated measurement of the size distribution. The mass concentration of diesel exhaust particles can be obtained from the particle size distribution of mine aerosols. On a mass basis, diesel exhaust particles are primarily in the submicrometer size range while coal dust particles are larger. Size distribution measurements made in the laboratory and in three underground coal mines exhibited two distinct modes with the diesel exhaust particles in the smaller particles mode and the coal particles in the larger particle mode. The point of separation between the two modes occurred in the 0.7- to 1.0-micrometer size range. The separation was found to be independent of mass fraction of the diesel exhaust particles, particle concentration, and sampling site. Methods recommended for further consideration as real-time monitors of diesel exhaust aerosols in mines are photometers and filter pressure drop techniques. A preclassifier would be required in both cases to separate the larger dust particles from the sample.
Keywords	Diesel engines Exhaust emissions Particle density(Concentration) Underground mining Coal mines Mining research Particle size distribution Aerosols Measurement Coal dust Sampling Photometers Pressure filters
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 68A - Air Pollution & Control 99A - Analytical Chemistry
Corporate Authors	Minnesota Univ., Minneapolis. Particle Technology Lab.; Bureau of Mines, Washington, DC.
Supplemental Notes	Sponsored by Bureau of Mines, Washington, DC.
Document Type	Technical Report
Title Note	Open file rept. 27 Aug 84-26 Jul 86,
NTIS Issue Number	198806
Contract Number	J0145022

Methods for the Selective Sampling of Diesel Particulate in Mine Dust Aerosols.

Methods for the Selective Sampling of Diesel Particulate in Mine Dust Aerosols.
PB88130810

Publication Date	1986
Personal Author	Marple, V. A.; Kittelson, D. B.; Rubow, K. L.; Fang, C. P.
Page Count	110
Abstract	The paper describes an investigation into time-integrated and real-time methods for determining the diesel exhaust particulate concentration in underground mines, particularly coal mines. The microorifice uniform deposit impactor is recommended for obtaining the time-integrated measurement of the size distribution. The mass concentration of diesel exhaust particles can be obtained from the particle size distribution of mine aerosols. On a mass basis, diesel exhaust particles are primarily in the submicrometer size range while coal dust particles are larger. Size distribution measurements made in the laboratory and in three underground coal mines exhibited two distinct modes with the diesel exhaust particles in the smaller particles mode and the coal particles in the larger particle mode. The point of separation between the two modes occurred in the 0.7- to 1.0-micrometer size range. The separation was found to be independent of mass fraction of the diesel exhaust particles, particle concentration, and sampling site. Methods recommended for further consideration as real-time monitors of diesel exhaust aerosols in mines are photometers and filter pressure drop techniques. A preclassifier would be required in both cases to separate the larger dust particles from the sample.
Keywords	Diesel engines Exhaust emissions Particle density(Concentration) Underground mining Coal mines Mining research Particle size distribution Aerosols Measurement Coal dust Sampling Photometers Pressure filters
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 68A - Air Pollution & Control 99A - Analytical Chemistry
Corporate Authors	Minnesota Univ., Minneapolis. Particle Technology Lab.; Bureau of Mines, Washington, DC.
Supplemental Notes	Sponsored by Bureau of Mines, Washington, DC.
Document Type	Technical Report
Title Note	Open file rept. 27 Aug 84-26 Jul 86,
NTIS Issue Number	198806
Contract Number	J0145022