文献类型：期刊文献

英文题名：Reduced-order modeling of turbulent flow reactors by tracing the Damkohler numbers

作者：Qiu, Peng[1];Wang, Fuchen[1];Guo, Qinghua[1];Richter, Andreas[2];Xu, Jianliang[1];Dai, Zhenghua[1,3]

机构：[1]East China Univ Sci & Technol, Shanghai 200237, Peoples R China;[2]TU Bergakad Freiberg, Chair Energy Proc Engn & Thermal Waste Treatment, Fuchsmuhlenweg 9, D-09599 Freiberg, Germany;[3]Xinjiang Univ, Urumqi 830046, Peoples R China

年份：2022

卷号：248

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000724347700007)】；

基金：This work was supported by the Shanghai Outstanding Technology Leader [Grant number 19XD1434800] ; the National Key R&D Plan [Grant number 2018YFC0808500] ; and the National Natural Science Foundation of China [Grant numbers 21776087, 21761132034] .

语种：英文

外文关键词：Reduced-order model; Turbulent reacting flow; Damkohler number; Dynamic simulation; Mixing; Segregation

摘要：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 Damkohler 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 Damkohler 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. (c) 2021 Elsevier Ltd. All rights reserved.