Coal

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

Hvac

Energy; Coal

An abbreviation for the heating, ventilation, and air-conditioning system; the system or systems that condition air in a building.

Lease operations

Energy; Coal

Any well, lease, or field operations related to the exploration for or production of natural gasprior to delivery for processing or transportation out of the field. Gasused in lease operations ...

Hvac conservation feature

Energy; Coal

A building featuredesigned to reduce the amount of energy consumed by the heating,cooling, and ventilating equipment.

Median

Energy; Coal

The middle number of a data set when the measurements are arranged in ascending (or descending) order.

Lease separation facility (lease separator)

Energy; Coal

A facility installed at the surface for the purpose of (a) separating gases from produced crude oil and water at the temperature and pressure conditions set by the separator and/or (b) separating ...

Hvac dsm programme

Energy; Coal

A DSM (demand-side management)program designed to promote the efficiency of the heating or coolingdelivery system, including replacement. Includes ventilation(economizers; heat recovery from exhaust ...

Land use

Energy; Coal

The ultimate uses to be permitted for currently contaminated lands, waters, and structures at each Department of Energy installation. Land-use decisions will strongly influence the cost of ...