烟塔合一烟气排放的数值分析

采用CFD软件对中性大气条件下烟塔合一排放的流场、速度场和温度场进行了数值模拟。在模拟过程中,建立了数学模型,采用k-ε湍流模型封闭N-S方程对流体进行计算。通过对不同风速下流动区域流场、压力场和温度场的分析,揭示了烟塔一体排放热湿烟气和净烟气的混合过程及对大气流动的扰动,热湿空气对净烟气的携带和包覆是有效的,协同抬升效果明显。

Numerical Analysis of Plume Rise of Cooling Tower with Flue Gas Injection

A CFD software was employed to simulate the performance of cooling tower with flue gas injection in neutral atmosphere condition. A mathematical mode was established for simulating the flow in cooling tower, the N-S equations are closed with k- e equations. By calculating and analyzing the contours of velocity and temperature, indicate the admixture between hot-wet air and flue gas and the disturbing to the flow of atmospheres near it, the schlepping and enwrapping of hot-wet air to the flue gas is effective, and effect of rising together is obvious.