Mining Publication: Laboratory Investigation of Enclosed Cab Filtration System Performance Factors
Original creation date: January 2009
The National Institute for Occupational Safety and Health (NIOSH) has investigated various factor effects on cab air filtration system performance. Factors experimentally investigated were intake filter efficiency, intake air leakage, intake filter loading (filter flow resistance), recirculation filter use, and wind penetration. Adding an intake pressurizer fan to the filtration system was also investigated. Results indicate that the intake filter efficiency and recirculation filter were the two most influential factors on cab protection performance. Use of a recirculation filter significantly reduced cab penetration over the intake air filter by itself due to the multiplicable filtration of the cab interior air. Cab penetration was also affected to a lesser extent by intake filter loading and air leakage. Adding an intake pressurizer fan notably increased intake airflow and cab pressure while providing only minor changes to cab penetration.
Authors: JA Organiscak, AB Cecala
See Also
- Clearing the Air
- Current NIOSH Dust Control Research for Noncoal Surface Mines
- Doing the Math: The Effectiveness of Enclosed-Cab Air-Cleaning Methods Can Be Spelled Out in Mathematical Equations
- Key Design Factors of Enclosed Cab Dust Filtration Systems
- Maximizing Air Quality Inside Enclosed Cabs with a Unidirectional Filtration and Pressurization System
- A New Concept for Leak Testing Environmental Enclosure Filtration Systems
- A New Leak Test Method for Enclosed Cab Filtration Systems
- Reducing Dust Inside Enclosed Cabs
- Technology News 550 - A Test Method for Quantifying Unfiltered Air Leakage into Enclosed Cabs
- Workplace Solutions: Reducing Hazardous Dust in Enclosed Operator Cabs During Construction
- Content source: National Institute for Occupational Safety and Health, Mining Program