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Influences of Coal on Coal Combustion Rate of Circulating Fluidized Bed

Yong Yu-mei

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Abstract

A comprehensive mathematical model of circulating fluidized bed (CFB) boiler was built up. The model considered broad size distribution of feeding coal and bed inventory. The general theory of coal combustion was applied to coal combustion especially in CFB boiler, and the effects of coal properties on main parameters of CFB combustion performance were analyzed. The calculation results matched with the experiment data well. Modified model can calculate reaction rates of different coals of different sizes.

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What this paper is about

A comprehensive mathematical model of circulating fluidized bed (CFB) boiler was built up. The model considered broad size distribution of feeding coal and bed inventory. The general theory of coal combustion was applied to coal combustion especially in CFB boiler, and the effects of coal properties on main parameters of CFB combustion performance were analyzed. The calculation results matched with the experiment data well. Modified model can calculate reaction rates of different coals of different sizes.

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Available abstract

A comprehensive mathematical model of circulating fluidized bed (CFB) boiler was built up. The model considered broad size distribution of feeding coal and bed inventory. The general theory of coal combustion was applied to coal combustion especially in CFB boiler, and the effects of coal properties on main parameters of CFB combustion performance were analyzed. The calculation results matched with the experiment data well. Modified model can calculate reaction rates of different coals of different sizes.

Key concepts: Fluidized bed combustion, Coal, Combustion, Boiler (water heating), Waste management, Coal combustion products, Environmental science, Petroleum engineering

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