Predicting the classification characteristics of coal. Part 3. Gross calorific value of dry, ash-free coal
- Authors: Balaeva Y.S.1, Miroshnichenko D.V.1, Kaftan Y.S.1
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Affiliations:
- Ukrainian Coal Chemistry Institute
- Issue: Vol 59, No 4 (2016)
- Pages: 123-131
- Section: Coal
- URL: https://journals.rcsi.science/1068-364X/article/view/225936
- DOI: https://doi.org/10.3103/S1068364X16040025
- ID: 225936
Cite item
Abstract
For 63 samples of Ukrainian, Russian, and imported coal, equations for predicting the gross calorific value Qsdaf on the basis of the following coal characteristics are developed: Wa, Oddaf, Qsaf, and Car. The error is within the standard tolerances (σ ≤ 0.3 MJ/kg). With sufficient accuracy, Qsdaf 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 + 2Sv/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.
About the authors
Ya. S. Balaeva
Ukrainian Coal Chemistry Institute
Author for correspondence.
Email: ys.balaeva@gmail.com
Ukraine, ul. Vesnina 7, Kharkiv, 61023
D. V. Miroshnichenko
Ukrainian Coal Chemistry Institute
Email: ys.balaeva@gmail.com
Ukraine, ul. Vesnina 7, Kharkiv, 61023
Yu. S. Kaftan
Ukrainian Coal Chemistry Institute
Email: ys.balaeva@gmail.com
Ukraine, ul. Vesnina 7, Kharkiv, 61023