高校化学工程学报Issue(2)：222-227,6.DOI:10.3969/j.issn.1003-9015.2013.02.008
列管式固定床反应器管束间单相流动与传热的CFD研究
CFD Simulation of Fluid Flow and Heat Transfer of Single Phase inside the Shell Side of Multitubular Fixed Bed Reactor
张敏华 1百璐 1耿中峰 1李永辉1
作者信息
- 1. 天津大学 石油化工技术开发中心 绿色合成与转化教育部重点实验室，天津 300072
- 折叠
摘要
Abstract
The numerical simulation method (commercial CFD code) was used to investigate the fluid flow and heat transfer inside the shell side of multitubular fixed bed reactor. It was found that the simulation results are sensitive to the turbulence model selection, and realizable k-εmodel was considered as the best turbulence model by comparing the CFD results of heat transfer coefficient and pressure drop with empirical method results. The simulation results show that the velocity and temperature distribution vary along axial and radial direction, and there are stagnation regions before and behind the baffles, in which the heat transfer coefficient is low;but high heat transfer was observed in cross flow zones and baffle cut zones. Finally, the validity of the CFD results was confirmed by comparing its results of outlet temperature, total pressure drop and average heat transfer coefficient with empirical method results under different heat flux and inlet velocity conditions. The calculating results have a good agreement with the results of empirical methods.关键词
列管式固定床反应器/单相传热/CFD模拟/湍流模型/折流板/传热膜系数Key words
multitubular fixed bed reactor/single phase heat transfer/CFD simulation/turbulence model/baffle/heat transfer coefficient分类
化学化工引用本文复制引用
张敏华,百璐,耿中峰,李永辉..列管式固定床反应器管束间单相流动与传热的CFD研究[J].高校化学工程学报,2013,(2):222-227,6.
