Numerical Simulation Study of Spray System of Marine Flue Gas Desulfurization Tower
The spray system is the main functional component of marine flue gas desulphurization tower,and the spray system parameters spray cone angle,spray flow velocity,and spray flow rate have a great influence on the uniformity of the flue gas flow field of marine flue gas desulphurization tower,and the influence process is complicated.Taking a certain type of marine flue gas desulphurization tower as the basic model,the BBD experimental method in Design Expert software was used to design a total of 17 groups of tests based on the three factors and three levels of the spray system parameters of spray cone angle,spray flow velocity and spray flow rate,and the average of the standard deviation of flue gas velocity of a number of cross-sections was used as the basis for judging the uniformity of the flue gas flow in the tower.The three-dimensional solid model of the marine flue gas desulphurization tower was established by using ANSYS software SCDM,the model meshing was carried out by using Fluent meshing,and the experiments were simulated by using Fluent,a commercial software for Computational Fluid Dynamics(CFD).Design Expert software was applied to carry out quadratic regression analysis on 17 groups of experimental results,and Matlab Genetic Algorithm Toolbox was applied to solve the objective function equation obtained from the quadratic regression analysis to obtain the corresponding values of spray flow velocity,spray cone angle and spray flow rate at the smallest time of the average value of standard deviation of flow rate of each cross-section,and the optimization results were verified by Fluent software again,and the reliability reached 97.40%.
NETL
NSTL
万方数据
维普
