Welcome to CDC Stacks | Relative Self-Heating Tendencies of Coal, Carbonaceous Shales, and Coal Refuse - 10227 | National Institute for Occupational Safety and Health
Stacks Logo
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.
 
 
Help
Clear All Simple Search
Advanced Search
Relative Self-Heating Tendencies of Coal, Carbonaceous Shales, and Coal Refuse
  • Published Date:
    1/1/2010
Filetype[PDF - 1.96 MB]


Details:
  • Personal Authors:
  • Description:
    Studies on the initiation and propagation of mine fires have dealt almost exclusively with coal. It has been assumed that the self-heating potential of carbonaceous shales and coal wastes is relatively low. However, in abandoned coal mines and waste banks, initiation and propagation of fires may be strongly dependent on the self-heating tendency of these materials. The purpose of this study was to compare the self-heating probability of carbonaceous shales and coal wastes to that of coals. This study utilized a modified differential thermal analysis method, in which the combustion furnace temperature was the reference to which the sample temperature was compared. Based on the distribution of the maximum temperature differential and the sample heating rate, a self-heating probability value (SHPV) was calculated that corresponded to observed self-heating behavior. In this study, several of the carbonaceous shales and one coal waste had relatively high SHPV. The SHPV did not correspond directly to heating values or to differences in sulfur concentration.

  • Supporting Files:
    No Additional Files
No Related Documents.
You May Also Like: