Abstract
In thermal power plant, the quality of combustion air distribution directly affects the stability and efficiency of boiler operation. The reasonable air-coal ratio can provide protection for the security and stability of unit operation and reduce energy waste. In the course of the actual operation, the air-coal ratio is immeasurable in every combustion area. The coal and air need to feed according to experience and higher or lower air-coal ratio is unavoidable. In this paper, the boiler of a power plant is selected as research objects and adopts the fluent software to study combustion conditions in furnace. The combustion effect is researched by adjusting temperature and quantity of primary air when the secondary air is fixed. The best temperature and quantity of primary air and air-coal ratio can be get. These study results provide a further evidence for high efficient and safe operation of boilers.
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