Analysis For Flow Field Characteristics of Purified Gas Flue Based on ANSYS

Keyword:Purified gas flue; Flow field characteristics; Flow measuring point Abstract. Regarding issue of poor measurement accuracy on gas flow in purified gas flue after processed by coal-fired power plant desulfurization system, we make numerical simulation through Workbench of ANSYS towards flow properties within purified gas flue of No.8 unit Yangcheng power plant processed by gas desulfurization system, analyze different flow field distribution under different gas flow. The result show that change of the gas flow has small influence on velocity distribution inside the flue, the most symmetrical area appears at central area of lower level flue, after three times diversion the velocity distribution in upper level flue at vertical and horizontal direction are not balance, therefore, central area of lower level flue will be the best flow measuring point.