Coal Characterization in Relation to Coal Combustion
作者： Harald Jüntgen
DOI: 10.1007/978-94-009-3661-4_1
关键词:
摘要: Most coals are used worldwide for combustion today. Generally all kinds of applicable combustion. The major methods burning fixed bed firing, fluidized firing and suspension firing. last technique is in big industrial plants electric power generation. In heating rate slow (a few K/s), time ranges from minutes to hours, depending on particle size. rates can be estimated at 103 104 K/s, temperatures between 800 900° C, times the order minutes. also high, more than 1500° seconds. these systems characteristic very different sizes used: Lump coal a range 5 50 mm crushed size 1 pulverized with below 100 μ
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