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Details

Coal Dust Control by Condensation Enlargement.

PB88248679

Publication Date	1982
Personal Author	Schowengerdt, F. D.; Brown, J. T.
Page Count	36
Abstract	A prototype dust conditioning system for control of coal dust was designed, constructed, and evaluated based on the concept of condensation enlargement. The volume of the device was 0.74 cubic feet and it was designed to handle up to 50 cubic feet per minute (cfm) of dust laden air. Nucleation efficiencies of 95 percent were measured, resulting in overall mass removal efficiencies greater than 99 percent at flow rates of 10 cfm. At 50 cfm, the efficiency dropped to 80 percent. The device was able to be scaled to a capacity of 3,000 cfm, sufficient for a full scale mining application. The authors suggest that a geometric configuration of a concentric cylindrical shape with the outer cylinder being cooled and heat introduced along the inner cylinder should be examined as this would have some advantages over the present plane geometry used in the prototype.
Keywords	Coal mining Dust Air pollution control equipment Condensation nuclei Occupational safety and health Air quality Air pollution abatement
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	48A - Mineral Industries 68A - Air Pollution & Control 99B - Industrial Chemistry & Chemical Process Engineering 57U - Public Health & Industrial Medicine
Corporate Authors	Colorado School of Mines, Golden. Dept. of Physics.; National Inst. for Occupational Safety and Health, Cincinnati, OH.
Supplemental Notes	Sponsored by National Inst. for Occupational Safety and Health, Cincinnati, OH.
Document Type	Technical Report
Title Note	Progress rept.,
NTIS Issue Number	198823

Coal Dust Control by Condensation Enlargement.

Coal Dust Control by Condensation Enlargement.
PB88248679

Publication Date	1982
Personal Author	Schowengerdt, F. D.; Brown, J. T.
Page Count	36
Abstract	A prototype dust conditioning system for control of coal dust was designed, constructed, and evaluated based on the concept of condensation enlargement. The volume of the device was 0.74 cubic feet and it was designed to handle up to 50 cubic feet per minute (cfm) of dust laden air. Nucleation efficiencies of 95 percent were measured, resulting in overall mass removal efficiencies greater than 99 percent at flow rates of 10 cfm. At 50 cfm, the efficiency dropped to 80 percent. The device was able to be scaled to a capacity of 3,000 cfm, sufficient for a full scale mining application. The authors suggest that a geometric configuration of a concentric cylindrical shape with the outer cylinder being cooled and heat introduced along the inner cylinder should be examined as this would have some advantages over the present plane geometry used in the prototype.
Keywords	Coal mining Dust Air pollution control equipment Condensation nuclei Occupational safety and health Air quality Air pollution abatement
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	48A - Mineral Industries 68A - Air Pollution & Control 99B - Industrial Chemistry & Chemical Process Engineering 57U - Public Health & Industrial Medicine
Corporate Authors	Colorado School of Mines, Golden. Dept. of Physics.; National Inst. for Occupational Safety and Health, Cincinnati, OH.
Supplemental Notes	Sponsored by National Inst. for Occupational Safety and Health, Cincinnati, OH.
Document Type	Technical Report
Title Note	Progress rept.,
NTIS Issue Number	198823