Numerical Simulation of Spray Dehydration Process of Flue Gas in Oxy-fuel Combustion

被引：0
|
作者：
Xiong, Jian-Jun [1 ]
Feng, Yu-Heng [1 ]
Zhang, Qian [1 ]
Chen, De-Zhen [1 ]
Yan, Kai [2 ]
机构：
[1] College of Mechanical Engineering, Tongji University, Shanghai,201804, China
[2] Shanghai Boiler Works, Ltd., Shanghai,200245, China
来源：
Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | 2021年 / 42卷 / 02期
关键词：
Flue gases;
D O I：
暂无
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学科分类号：
摘要：
In the oxy-fuel combustion system, the high-humidity flue gas after desulfurization needs to be dehydrated before it is used as recycled flue gas. The spray tower is a commonly used dehumidification equipment. In this paper, the CFD (Computational Fluid Dynamics) method is used to simulate the flue gas dehydration process of the spray tower. The temperature and humidity distribution in the spray tower is obtained and validated by the experimental results. Through the model, the specific effects of nozzle operating parameters and operating characteristics on the average droplet movement time and dehydration effect are analyzed. The causes of numerical simulation of the 'supersaturation' of the outlet flue gas are discussed, and the influence of non-condensable gas components on the dehydration process is studied. The research provides basic data and theoretical methods for the design of oxy-fuel combustion dehydration systems. © 2021, Science Press. All right reserved.
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页码：438 / 446
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