| Abstrakt: |
For 63 samples of Ukrainian, Russian, and imported coal, equations for predicting the gross calorific value Q on the basis of the following coal characteristics are developed: W , O , Q , and C. The error is within the standard tolerances (σ ≤ 0.3 MJ/kg). With sufficient accuracy, Q may be predicted from equations based on petrographic characteristics such as the vitrinite reflectance, the content of liptinitegroup minerals, and the sum of lean macerals ( I + 2 S v/3). In these equations, the coefficients correspond to the heat of combustion of the vitrinite components at different metamorphic stages, the liptinite, and the lean macerals. [ABSTRACT FROM AUTHOR] |
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