Using node analysis modeling techniques to predict cab filtration system performance.
Organiscak-JA; Cecala-AB; Noll-JD
2014 SME Annual Meeting, February 23 - 26, Salt Lake City, Utah, Preprint 14-004. Englewood, CO: Society for Mining, Metallurgy, and Exploration, Inc., 2014 Feb; :1-6
Enclosed cab filtration systems are typically used on mobile mining equipment to reduce miners) exposure to airborne dusts and diesel particulates generated during mining operations. Various filter configurations can be used within the heating, ventilation, and air conditioning (HVAC) systems of cabs to remove the airborne contaminants. The air cleaning performance of cab filtration systems is highly dependent on the efficiency of the air filters, the number of filters used,and their placement within the HVAC system. This paper shows how to mathematically model cab filtration systems and illustrates a methodology for developing other cab filtration system design models. Node diagrams of several filtration system circuits are illustrated with their mathematical models at steady state airflow and concentration conditions. Laboratory and field data are presented to demonstrate the validity and utility of modeling enclosed cab air cleaning performance. The paper concludes that incorporating multiple filters throughout the HVAC system improves the air cleaning performance and robustness of the cab filtration system design.
Mining-industry; Underground-mining; Coal-mining; Coal-dust; Dust-particles; Filtration; Exposure-levels; Airborne-dusts; Diesel-emissions; Diesel-exhausts; Particulates; Particulate-dust; Filters; Ventilation; Heat-regulation; Air-conditioning; Air-contamination; Mathematical-models
2014 SME Annual Meeting, February 23 - 26, Salt Lake City, Utah, Preprint 14-004