Energy terms . 2014.
coal — coalless, adj. /kohl/, n. 1. a black or dark brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Cf. anthracite, bituminous coal, lignite. 2. a piece of glowing, charred, or burned wood or other… … Universalium
Ranks of Coal as Classified by the American Society for Testing and Materials, Table — ▪ Table caloric value (moist, mineral matter free basis)* fixed carbon percentage volatile matter percentage British thermal megajoules (dry, mineral matter free basis) (dry, mineral matter free basis) units per pound … Universalium
bituminous coal — a mineral coal that contains volatile hydrocarbons and tarry matter and burns with a yellow, smoky flame; soft coal. [1875 80] * * * or soft coal Most abundant form of coal. It is dark brown to black and has a relatively high heat value. Widely… … Universalium
Sub-bituminous coal — is a type of coal whose properties range from those of lignite to those of bituminous coal and are used primarily as fuel for steam electric power generation. Sub bituminous coal may be dull, dark brown to black, soft and crumbly at the lower end … Wikipedia
Bituminous coal — A dense coal, usually black, sometimes dark brown, often with well defined bands of bright and dull material, used primarily as fuel in steam electric power generation, with substantial quantities also used for heat and power applications in… … Energy terms
Subbituminous coal — A coal whose properties range from those of lignite to those of bituminous coal and used primarily as fuel for steam electric power generation. It may be dull, dark brown to black, soft and crumbly, at the lower end of the range, to bright, jet … Energy terms
Bituminous coal — is a relatively soft coal containing a tarlike substance called bitumen. It is of higher quality than lignite coal but poorer quality than anthracite coal. Bituminous coal is an organic sedimentary rock formed by diagenetic and submetamorphic… … Wikipedia
high volatile A bituminous coal — n the rank of coal, within the bituminous class of the Classification D388, such that on the dry and mineral matter free basis, the volatile matter content of the coal is greater than 31 % (or the fixed carbon content is less than 69 %), and its… … Coke&Coal Terminology
high volatile C bituminous coal — n the rank of coal, within the bituminous class of Classification D388, such that, on the moist, mineral matter free basis, the gross calorific value of the coal in British thermal units per pound is equal to or greater than 11 500 (26.75 Mj/kg)… … Coke&Coal Terminology
high volatile B bituminous coal — n the rank of coal, within the bituminous class of Classification D388, such that, on the moist, mineral matter free basis, the gross calorific value of the coal in British thermal units per pound is equal to greater than 13 000 (30.24 Mj/kg) but … Coke&Coal Terminology
