Adiabatic self-heating rate investigations of Boundary Hill Mine face coal.

Hamilton, Garth Russell (2001). Adiabatic self-heating rate investigations of Boundary Hill Mine face coal. B.Sc Thesis, School of Engineering, The University of Queensland.

       
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Author Hamilton, Garth Russell
Thesis Title Adiabatic self-heating rate investigations of Boundary Hill Mine face coal.
School, Centre or Institute School of Engineering
Institution The University of Queensland
Publication date 2001
Thesis type B.Sc Thesis
Supervisor Dr B Basil Beamish
Total pages 86
Language eng
Subjects 091405 Mining Engineering
Formatted abstract

The spontaneous combustion potentials of a series of Boundary Hill Mine face coal samples have been determined by adiabatic testing. The relationships between the self-heating rate (R70) produced by this method and various coal quality parameters were investigated. Self-heating rates within the Boundary Hill seam profile vary between 5.37oC/h and 10.23oC/h. An equation is established, that demonstrates the decrease in self-heating rate that results from an increase in ash content. Two sets of replicate samples have been produced to investigate the effect of moisture on the self-heating rate of coal. Critical moisture levels of 10% for BH9 and 8% for BH1 were found, above which, samples displayed no self-heating ability within the timeframe of the test. The R70 testing method, although normally conducted on a dry basis, is proven to be able to detect differences in coal sample’s spontaneous combustion potential when comparing coals of equal moisture content. R70 values are able to predict the location of hot spot development in larger scale testing.

Keyword Self-heating rates
Adiabatic testing
Additional Notes * Mining, Minerals Processing and Materials Engineering undergraduate theses. 2001.

Document type: Thesis
Collection: UQ Theses (non-RHD) - UQ staff and students only
 
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