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A new type of swirl burner has been developed to stabilize pulverized|coal combustion by burning different types of coal at different loads and to reduce NO x formation during combustion. The burner uses a device to concentrate the coal powder in the primary|air tube that divides the primary coal|air into two streams with different pulverized|coal concentrations. This paper reports the measurement of gas|particle flows at the exit of the different swirl burners using a 3|D Phase Doppler Particle Anemometer (PDPA). The effect of different geometrical configurations on the two|phase flow field is studied. The results that give the two|phase flow fields and particle concentrations show the superiority of the new swirl burner.
A new type of swirl burner has been developed to stabilize pulverized | coal combustion by burning different types of coal at different loads and to reduce NOx formation during combustion. The burner uses a device to concentrate the coal powder in the primary air tube that divides the primary coal | air into two streams with different pulverized | coal concentrations. This paper reports the measurement of gas | particle flows at the exit of the different swirl burners using a 3 | The effect of different geometrical configurations on the two | phase flow field is studied. The results that give the two | phase flow fields and particle concentrations show the superiority of the new swirl burner .