摘要
为了分析了不同工况下水平烟道内部烟气的流场分布,提出了烟道内部流速测量采样点区域布置方法,并建立了燃煤电厂烟囱-烟道流场模型进行了CFD模拟。结果表明:水平烟道内部存在能够代表烟气实际流速的直线区域,多线法测量烟气流速是可行的。
To analyze the flue gas flow field in a horizontal flue duct under different conditions, a method was proposed for arrangement of sampling points in the flue duct to measure the gas velocity, while a model of chimney-flue flow field was established for coal-fired power plants, with which, CFD simulations were conducted. Results show that it is available to use the proposed multi-line method to measure the flue gas velocity, since there are straight line areas, where the flue gas velocity can represent the actual velocity of flue gas in the duct.
作者
钱丛昊
冯璇
朱小良
Qian Conghao;Feng Xuan;Zhu Xiaoliang(School of Energy and Environment,Southeast University,Nanjing 210096,China)
出处
《发电设备》
2019年第6期375-380,共6页
Power Equipment
关键词
流速测量
CFD模拟
流场分析
采样点选取
velocity measurement
CFD simulation
flow field analysis
sampling point selection
