steam coal
Noun: - Coal suitable for use under steam boilers: A specific grade of bituminous coal that is suitable for use as fuel in steam-raising boilers, such as those found in power stations, locomotives, or ships. It is characterized by its high calorific value and specific burning properties that make it efficient for producing steam.
This term is a compound noun. It is used specifically in industrial, energy, and historical transportation contexts to refer to the type of coal designated for steam generation. - The power plant switched to a different supplier for its steam coal. - The vintage locomotive required high-quality steam coal to operate.
- Technical Specification: In industrial procurement, "steam coal" may refer to coal meeting specific technical specifications for moisture, ash, sulfur, and volatile matter content to ensure efficient and clean combustion in boiler systems.
- Thermal coal: A near-synonymous term more commonly used in modern energy contexts to refer to coal burned for heat and power generation, not exclusively for steam.
- Bituminous coal: A broader category of coal to which most steam coal belongs. Not all bituminous coal is classified as steam coal.
- Boiler fuel: A more general term for any fuel used in boilers, which can include materials other than coal.
- Boiler coal
- Steaming coal (variant spelling)
"Steam coal" is a fixed compound noun. Its meaning is specialized and distinct from other types of coal like "coking coal" (used for steelmaking) or "anthracite" (a harder, cleaner-burning coal). Its usage has declined with the phasing out of steam locomotives and the rise of more precise terms like "thermal coal" in the power industry.
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coal suitable for use under steam boilers
