The object of the study is the circulating fluidized bed (CFB) steam generator BKZ 500–13.8 using an off-specification fuel (anthracite screenings of the Listvyanka coal field in the Novosibirsk region). The purpose of the study is to apply the zone method of calculation of the basic elements of the CFB steam generator when switching to a new fuel. The calculations determined the geometric characteristics of the combustion chamber and heating surfaces (zones of the superheater, economizer, and air preheater). The most important indicators of the CFB steam generator operating on anthracite culm were found: boiler efficiency of 92.42%, anthracite consumption of 14.4 kg/s, sulfur oxide emissions of 22.2 kg/s, and nitrogen oxide emissions of 12.8 kg/s. This steam generator can operate on the lowest-grade fuels with minimum environmental damage.

中文翻译：

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循环流化床燃烧：燃煤发电行业的竞争技术

研究的目标是使用不合格燃料的循环流化床（CFB）蒸汽发生器BKZ 500–13.8（新西伯利亚地区Listvyanka煤田的无烟煤筛分）。研究的目的是在转换为新燃料时应用CFB蒸汽发生器基本元件的区域计算方法。计算确定了燃烧室和加热表面（过热器，省煤器和空气预热器的区域）的几何特性。发现了在无烟煤杆上运行的CFB蒸汽发生器的最重要指标：锅炉效率为92.42％，无烟煤消耗为14.4 kg / s，二氧化硫排放量为22.2 kg / s，氮氧化物排放量为12.8 kg / s。该蒸汽发生器可以使用最低等级的燃料运行，对环境的损害最小。