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New Method for the Real-Time Measurement of Diesel Aerosol.

PB2012111904

Publication Date	2008
Personal Author	Kittleson, D. B.; Watts, W. F.; Johnson, J. P.; Ragatz, A. C.
Page Count	60
Abstract	Diesel exhaust is a complex mixture of gases and Diesel Particulate Matter (DPM), and in metal and non-metal underground mines the Mine Safety and Health Administration (MSHA) regulates DPM concentrations using a time-weighted-averaged, 8 hr, full-shift, permissible exposure limit. The limit is 160 microg/m3 of total carbon (TC) and National Institute for Occupational Safety and Health (NIOSH) standard method 5040 is used to determine the amount of elemental (EC), organic carbon (OC) and TC in the sample. This sampling and analysis method does not provide real-time data, nor does it provide information on particle volatility, particle size, or aerosol number concentration. These factors are known to be affected by emission control devices, engine duty cycle, fuel and lubrication oil composition and other factors. The goals of the project were: (1) Evaluate the DPM control efficiency of selected catalyzed emission control devices in the laboratory using traditional and non-traditional measures. Non-traditional measures include particle size, particle volatility, aerosol number and volume concentrations. Traditional measures include mass, elemental carbon (EC) and organic carbon (OC). (2) Evaluate and recommend procedures for the use of a low cost instrument package for the routine test cell evaluation of Diesel engines equipped with and without emission control devices. (3) Develop a portable CS for use with portable aerosol instruments used in underground, non-gassy mines to obtain real-time data on the physical and chemical characteristics of DPM to which miners are exposed.
Keywords	Diesel fuels Aerosols Air pollution sampling Methods Materials Tables (Data) Figures Impacts Instrumentation Quality assurance Engine tests Air pollution monitoring Exhaust emission Miners Particulates Sampling systems Real time measurements
Source Agency	National Institute for Occupational Safety and Health
Corporate Authors	Minnesota Univ., Minneapolis. Dept. of Mechanical Engineering.; National Inst. for Occupational Safety and Health, Atlanta, GA.
Supplemental Notes	Sponsored by National Inst. for Occupational Safety and Health, Atlanta, GA.
Document Type	Technical Report
NTIS Issue Number	201221

New Method for the Real-Time Measurement of Diesel Aerosol.

New Method for the Real-Time Measurement of Diesel Aerosol.
PB2012111904

Publication Date	2008
Personal Author	Kittleson, D. B.; Watts, W. F.; Johnson, J. P.; Ragatz, A. C.
Page Count	60
Abstract	Diesel exhaust is a complex mixture of gases and Diesel Particulate Matter (DPM), and in metal and non-metal underground mines the Mine Safety and Health Administration (MSHA) regulates DPM concentrations using a time-weighted-averaged, 8 hr, full-shift, permissible exposure limit. The limit is 160 microg/m3 of total carbon (TC) and National Institute for Occupational Safety and Health (NIOSH) standard method 5040 is used to determine the amount of elemental (EC), organic carbon (OC) and TC in the sample. This sampling and analysis method does not provide real-time data, nor does it provide information on particle volatility, particle size, or aerosol number concentration. These factors are known to be affected by emission control devices, engine duty cycle, fuel and lubrication oil composition and other factors. The goals of the project were: (1) Evaluate the DPM control efficiency of selected catalyzed emission control devices in the laboratory using traditional and non-traditional measures. Non-traditional measures include particle size, particle volatility, aerosol number and volume concentrations. Traditional measures include mass, elemental carbon (EC) and organic carbon (OC). (2) Evaluate and recommend procedures for the use of a low cost instrument package for the routine test cell evaluation of Diesel engines equipped with and without emission control devices. (3) Develop a portable CS for use with portable aerosol instruments used in underground, non-gassy mines to obtain real-time data on the physical and chemical characteristics of DPM to which miners are exposed.
Keywords	Diesel fuels Aerosols Air pollution sampling Methods Materials Tables (Data) Figures Impacts Instrumentation Quality assurance Engine tests Air pollution monitoring Exhaust emission Miners Particulates Sampling systems Real time measurements
Source Agency	National Institute for Occupational Safety and Health
Corporate Authors	Minnesota Univ., Minneapolis. Dept. of Mechanical Engineering.; National Inst. for Occupational Safety and Health, Atlanta, GA.
Supplemental Notes	Sponsored by National Inst. for Occupational Safety and Health, Atlanta, GA.
Document Type	Technical Report
NTIS Issue Number	201221