1 Terms
Home > Industry/Domain > Energy > 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
Add a new termContributors in Coal
Coal
間接使用 （用途類別）
Energy; Coal
處理鍋爐燃料的用途類別。在鍋爐燃料轉換成另一個有用的能源來源，蒸汽或熱水，這是在轉用於其他的最終用途，例如進程或空間加熱或電代。製造商查找測量數量的蒸汽經過其的各種用途特別困難因為溫度和壓力的變化會影響能量含量。因此 ，（環境影響評估調查） 執行一項不會最終用途的蒸汽或熱水的估計和顯示只在鍋爐用這些次能源產生的燃料量。 ...
