Peak methane concentrations during coal mining : an analysis

Details

• Personal Author:
  Kissell, Fred N.
• Corporate Authors:
  United States. Bureau of Mines
• Description:
  "Methane concentration peaks were measured by the Bureau of Mines at coal mine working faces during entry development. The statistical distribution of peaks was found to be normal or log normal depending on how well the methane was being mixed into the ventilation airstream. A normal distribution indicated good mixing, whereas a log-normal distribution indicated that mixing was poor. In addition, the "highest" peaks over selected intervals were found to fit a type I extreme-value distribution, a result similar to that obtained while mining longwall faces." - NIOSHTIC-2
  
  NIOSH no. 10000617
  
  
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  17 numbered pages
• NIOSHTIC Number:
  nn:10000617
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:f88d8caa4396a4be13e27f83459dec58b1c2e44601c2184d7c9ed20999e6e1bf0f9b793cb19f319a57926f4d98e124cbb615505550f3f0fa8e89949d4dac2c3a
• Download URL:
  https://stacks.cdc.gov/view/cdc/9220/cdc_9220_DS1.pdf
• File Type:
  [PDF - 610.18 KB ]