Laboratory Investigation of Enclosed Cab Filtration System Performance Factors

Details

• Journal Article:
  Mining Engineering
• Personal Author:
  Organiscak, John A. ; Cecala, Andrew B.
• Description:
  Enclosed cabs are a primary means of reducing the silica dust exposure of equipment operators at surface mines. The National Institute for Occupational Safety and Health (NIOSH) has investigated various factor effects on enclosed 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 velocity effects on cab penetration (inside to outside cab concentration ratio). 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 penetration. 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. Description provided by NIOSH
• Subjects:
  • Manufacturing and Industrial Facilities
  • Mining
  • Occupational Health
  • Safety
  • Workplace
• Keywords:
  • Mining-industry; Ventilation; Filters; Air-filters; Air-flow; Air-quality-control; Mining-equipment
• Source:
  Min Eng 2009 Jan; 61(1):48-54
• Series:
  Mining Publications
• ISSN:
  0026-5187
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRL - Pittsburgh Research Laboratory
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  7 pdf pages
• Volume:
  61
• Issue:
  1
• NIOSHTIC Number:
  nn:20034930
• Federal Fiscal Year:
  2009
• NORA Priority Area:
  Mining
• Peer Reviewed:
  True
• Download URL:
  https://stacks.cdc.gov/view/cdc/9779/cdc_9779_DS1.pdf
• File Type:
  [PDF - 782.78 KB]
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:0a60d88df0e40e56df3cadbcc0b2cc3e2e902ad91b4bc33e24f82dad43aabac9bf99f8bcb7ad7252c2ea4f191dd4a7abd57b3d58d7a352a435567e931b6a76b4