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微通道内火焰传播的研究进展

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微通道内火焰传播的研究进展 第18卷第4期 2018年8月
综述
过程工程学报
The Chinese Journal of Process Engineering
VoL.18 No.4 Aug.2018
DOI: 10.12034/j.issn.1009-606X.217416
Advance in research of flame propagation inmicrochannels
Zheng WANGl.2,Xiangdi ZHAO',Guoxin CHEN',Shuai YANG',Qingshan HUANG2,Fuhua JIANG2* 1. State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering, Qingdao, Shandong 266071,China
2. Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, China
Abstract: Both the microcombustor and the quenching units of the flame arrestors are microchannels containing combustible gas burning. Although the researches on the microcombustor are abundant, the study of the quenching units in the flame arrestors is relatively scarce. In this work the principal factors affecting the flame propagation in the microchannels are summarized. It is shown that a more systematic study is desired to settle the disputes. The advance of the mathematical model for the flame propagation in the microchannels is reviewed. It is proposed that the fluid flow pattern in the microchannel is worth discussing. It is determined that the flow in the flame arrestor is turbulent under high-speed detonation conditions. The combination of the Reynolds stress model with the laminar finite rate model is recommended here to be employed for the numerical simulation of detonation flame propagation in the flame arrestors. Adensity-based algorithm is recommended.Inthe concludingremark,research achievements and shortcomings inthe
investigation of flame propagation in the microchannels are pointed out, and the outlook is also addressed Key words: microchannel; mathematical model; flame quenching; laminar finite rate; turbulent combustion
微通道内火焰传播的研究进展
王正12,赵祥迪",陈国鑫",杨帅",黄青山2,蒋夫花2
1.中国石化青岛安全工程研究院,化学品安全挖制国家重点实验室,山东青岛266071 2中国科学院青岛生物能源与过程研究所,山东青岛266101
摘要:微燃烧器与阻火器淬火单元均为可燃气体燃烧的微通道,目前对微燃烧器的研究较充分,而对阻火器率火单元的研究较少,本工作概述了影响火焰在微通道内传播的因素,指出对各因素的研究还需深入,有利于澄清争议:简述了火焰在微通道内传插播的数学模型的研究进展,提出微通道内流体流动流型的判定垂需完善;确定在高速爆轰条件下,阻火器内的流动为端流;推荐将雷诺应力端流模型与层流有限速率模型结合进行阻火器内高速爆轰火熔传播的数值模拟,推荐采用以密度为基础的算法
进行求解;指出了微通道内火焰传播研究的成果与不足,展望了其发展方向关键词:微通道;数学模型:火焰淳熄:层流有限速率;滞流燃烧
文章编号:1009-606X(2018)04066911
中图分类号:TK16
1
前言
文献标识码:A
度,Mesoscale),小于100μm称为微尺度(Micro scale)[1) 目前对微尺度燃烧(Micro-combustion)的研究主要包括
流动过程特征尺度划分通常将大于1mm的尺度称
为宏尺度(Macroscale),100μm~1mm称为细尺度(介尺
微燃烧器和阻火器泽火单元.微燃烧器[图1(a)][2]通常采用烃类或氢气作为燃料,能量密度为锂离子电池的数
收稿: 20171208,修回: 20180119,网络发表;20180515,Received:20171208, Revised:20180119, Published online: 20180515
06
项目(编号:Y7330419DM)
作者简介:王正(1977-),男,安徽省巢湖市人,博士,高级工程师,研究方向为安全工程,E-mail:wz.qdaysinopec.com:蒋夫花,通讯联系人,
E-mail: jiangfh@qibebt.ac.cn.
690
Wang Z, Zhao X D, Chen G X, et al. Advance in research of flame propagation in microchanaels (in Chinese),. Chin. J. Process Eng 2018, 18(4): 669679, DOI: 10.12034/j.issn.1009-606X.217416
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