Numerical Simulation of a 600 MW Utility Boiler with Different Tangential Arrangements of Burners

Corner tangentially fired boilers (CTFBs), in which the burners are tangentially arranged at the corners, have been widely used in the modern thermal power plants in China. However, because of the variation in coal and inherent characteristics of the corner tangentially fired furnace, slagging and high-temperature corrosion on the surfaces of water walls and large temperature deviation at the furnace outlet are often detected during operation. In comparison to CTFBs, wall tangentially fired boilers (WTFBs), including wall-center tangentially fired boilers (WCTFBs) and wall-off-center tangentially fired boilers (WOTFBs), in which the burners are tangentially arranged on the walls and pulverized coal burns stably, are believed to be able to solve the above-mentioned problems. The commercially available software package Fluent is used to simulate the performances of different tangential arrangements of burners, including CTFB, WCTFB, and WOTFB, in the flow and combustion characteristics of pulverized coal in...

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