Selecting a coal energy valuation index

Freidina, E. V.

doi:10.1007/bf02765637

Cited by 3 publications

(2 citation statements)

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“…Estimated sensitivity of e n of gas coal to the change in quality showed that super coal n e is 780 kcal [8], that value is twice as lower in a seam due to natural dilution of coal mass, which is twofold reduced again due to mixing of coal with dirt rock during coal cutting. Thus, the calorific value of coal entering washing process is 4 times lower as compared to this parameter of super coal, which aggravates both mining and processing outcome.…”

Section: Facet 1-characterization Of a Quality Indexmentioning

confidence: 99%

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Basic principles of coal classification by useful quality

2011

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The authors introduce the fossil coal classification in terms of useful quality of coal, by using the facet method and the qualimetry principles, in terms of the power-generating coal from the Kuznetsk Coal Basin and coking coal from Southern Yakutia. The new-proposed classification completes the existing classifications on the topic, and describes the full range of coal quality indexes according to a consumer and their significance in the final product quality evaluation.

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Section: Facet 1-characterization Of a Quality Indexmentioning

confidence: 99%

“…The latter seems best to express as a ratio of a useful attribute, the minimum combustion heat r i Q , to the complex of negative attributes, ash content d n А , moisture d W , sulfur content S, or other harmful component content per unit volume [8]. In general, the calorific value n e is expressed as:…”

Section: Facet 1-characterization Of a Quality Indexmentioning

confidence: 99%