化工学报2019，Vol.70Issue(12)：4556-4564,9.DOI:10.11949/0438-1157.20190523
H型翅片管湿烟气对流冷凝传热的数值模拟研究
Numerical simulation of convection condensation heat transfer of H-fixed tubes with wet flue gas
何洋 1王利民 1唐春丽 1车得福1
作者信息
- 1. 西安交通大学能源与动力工程学院,陕西西安710049
- 折叠
摘要
Abstract
The numerical simulation is used to simulate the convective condensation heat transfer characteristics of the fully developed section of the H-type and round fin-tube heat exchanger channels under wet conditions. The SIMPLER algorithm is used to calculate the pressure and velocity coupling. The wet flue gas flow rate ranges from 1 to 5 m/s, and the water vapor mass fraction ranges from 5% to 13%. The effects of different inlet velocity and water vapor mass fraction on heat and mass transfer coefficient, heat transfer, condensate flow rate and fin efficiency of H-shaped finned tube and circular finned tube were discussed. The calculation results show that the heat transfer capacity of H-type finned tube is obviously stronger than that of circular finned tube, but the condensation production is less than that of circular finned tube. Meanwhile, the total finned efficiency and latent heat finned efficiency of H-type finned tube are less than that of circular finned tube.关键词
传热传质/翅片效率/H型翅片/圆型翅片/湿工况Key words
heat and mass transfer/ fin efficiency/ H-type finned tube/ round finned tube/ dehumidifying conditions分类
化学化工引用本文复制引用
何洋,王利民,唐春丽,车得福..H型翅片管湿烟气对流冷凝传热的数值模拟研究[J].化工学报,2019,70(12):4556-4564,9.
