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Coal
Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. Coal is composed primarily of carbon along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.
Industry: Energy
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Coal
Biomass waste
Energy; Coal
Organic non-fossil material of biological origin that is a byproduct or a discarded product. Biomass waste includes municipal solid waste from biogenic sources, landfill gas, sludge waste, ...
Direct electricity load control
Energy; Coal
The utility instals a radio-controlled device on the HVAC equipment. During periods of particulary heavy use of electricity, the utility will send a radio signal to the building in its service ...
Coal carbonised
Energy; Coal
The amount of coal decomposed into solid coke and gaseous products by heating in a coke oven in a limited air supply or in the absence of air.
Direct mining cost
Energy; Coal
Operating cost directly attributable to the mining of ore, including costs for labor,supervision, engineering, power, fuel, supplies, equipment replacement, maintenance, and taxes on production.
Coal chemicals
Energy; Coal
Coal chemicals are obtained from the gases and vapour recovered from the manufacturing of coke. Generally, crude tar, ammonia, crude light oil, and gas are the basic products recovered. They are ...
Ultimate analysis
Energy; Coal
Coal analysis. Determines the amount of carbon, hydrogen, oxygen, nitrogen, and sulfur. Heating value is determined in terms of Btu, both on an as received basis (including moisture) and on a dry ...
