湿烟气冷凝换热的数值模拟

Numerical Simulation on Condensation Heat Transfer Process of Wet Flue Gas

为了对湿烟气冷凝换热过程进行深入细致的研究,采用计算流体动力学(CFD)方法对某湿烟气冷凝换热装置进行数值模拟,得到了该装置内部的速度场、压力场、温度场和传热系数的分布情况,并将其应用到某330 MW亚临界燃煤机组上。结果表明:本文数值模拟结果与该湿烟气冷凝换热装置实际运行结果基本吻合,可以作为同类装置的重要设计依据。

To study the condensation heat transfer process of wet flue gas, the method of computational fluid dynamics(CFD) was used to simulate the heat transfer process in a wet flue gas condenser, so as to obtain the distribution of velocity field, pressure field, temperature field and heat transfer coefficient in the condenser, which was subsequently applied to a 330 MW subcritical coal-fired power unit. Results show that the simulation results are basically consistent with the actual operation data of the condenser. This may serve as a design basis for similar facilities.