当前位置: X-MOL 学术Chem. Eng. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Reduced-order modeling of turbulent flow reactors by tracing the Damköhler numbers
Chemical Engineering Science ( IF 4.1 ) Pub Date : 2021-09-14 , DOI: 10.1016/j.ces.2021.117112
Peng Qiu 1 , Fuchen Wang 1 , Qinghua Guo 1 , Andreas Richter 2 , Jianliang Xu 1 , Zhenghua Dai 1, 3
Affiliation  

Although the reduced-order model (ROM) based on residence time distribution (RTD) can predict first-order reactions, high-order reactions require empirical data given the influence of mixing on chemical reactions, and are characterized by the Damköhler number. We attempted to numerically analyze the turbulent reacting flow in a micro-confined impinging jet reactor (CIJR) with a mixing-sensitive reaction system. A ROM framework for the CIJR was built by dividing the reactor space into a well-mixed segregation zone consisting of three reactor cells distinguished by their Damköhler numbers. The volume and pressure drop of the reactor were measured to test the control performance. The ROM was reliable and fast in the dynamic simulation of turbulent flow reactors with competing parallel second-order reactions. Our results suggest that the flow mechanism should be carefully considered when modeling the reactors.



中文翻译:

通过追踪 Damköhler 数对湍流反应器进行降阶建模

虽然基于停留时间分布 (RTD) 的降阶模型 (ROM) 可以预测一级反应,但考虑到混合对化学反应的影响,高阶反应需要经验数据,并以 Damköhler 数为特征。我们试图对具有混合敏感反应系统的微限制撞击射流反应器 (CIJR) 中的湍流反应流进行数值分析。CIJR 的 ROM 框架是通过将反应器空间划分为一个混合良好的隔离区来构建的,该隔离区由三个以 Damköhler 数区分的反应器单元组成。测量反应器的体积和压降以测试控制性能。ROM 在具有竞争性平行二级反应的湍流反应器的动态模拟中是可靠且快速的。

更新日期:2021-09-14
down
wechat
bug