Numerical Simulation of Gas Flow in a 48 t/h Biomass Fired Grate Boiler with Inner Dust Removal Device

Ying Zhao; Ning Wang; Qiu Luan Chen; Tie Cheng Wang; Wen Yi Liu; Qiang Lu; Chang Qing Dong

doi:10.4028/www.scientific.net/AMM.130-134.391

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 130-134Numerical Simulation of Gas Flow in a 48 t/h...

Numerical Simulation of Gas Flow in a 48 t/h Biomass Fired Grate Boiler with Inner Dust Removal Device

Abstract:

This paper presents the numerical simulation of a 48t/h biomass fired grate boiler with an inner boiler dust removal device located in the third pass. The results show that the inner dust removal device can correct the decline of the gas flow in the passes effectively on the basis of dust separation. The best air flow ratio of R_PA: R_SA: R_IAis = 4: 4: 2 correspondingly. Therefore, the new inner dust removal device should be applied in current commercial biomass boilers to improve their operation performance.