Numerical Simulation of Dynamic Behavior on WFGD

• Main Authors: Yen-wen Chen, 陳彥文
• Other Authors: Tseng, Chien-Chou
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/14395236959055671055

碩士 === 國立中山大學 === 機械與機電工程學系研究所 === 102 === This research focuses on the 3D dynamic behaviors of a wet flue-gas desulfurization (WFGD) by numerical simulation. Our simulation utilizes the Eulerian-Eulerian model on multiphase flow and couple with chemical reaction. Then the gas and liquid hydrodynamics inside a Sieve Tray Tower has been simulated using a commercial computational fluid dynamics (CFD) code, while a model that treats the absorption process of SO2 has been developed and implemented in the software through dedicated modules. The simulation has been validated by absorption of SO2 measurements of the experimental data, and further analyses have been conducted through the volume of fraction and velocity contours. Our goal is to analyze the result of simulation on every sieve tray and capture more complicated flow structures. According to the results, the dynamic behaviors of the flow field and liquid-gas ratio can affect the sulphur dioxide removal efficiency significantly. The result shows that chemical reaction couple with Eulerian-Eulerian model can help this research to have better understandings of the complexity of the FGD and prepare for the further optimization.