壁面润湿性对微通道内二氧化碳-水两相流流动及传质性能的影响

doi:10.11949/j.issn.0438-1157.20151050

化工学报 ›› 2015, Vol. 66 ›› Issue (9): 3405-3412.DOI: 10.11949/j.issn.0438-1157.20151050

壁面润湿性对微通道内二氧化碳-水两相流流动及传质性能的影响

孙俊杰, 郝婷婷, 马学虎, 兰忠

辽宁省化工资源清洁利用重点实验室, 大连理工大学化学工程研究所, 辽宁大连 116024

收稿日期:2015-07-02 修回日期:2015-07-10 出版日期:2015-09-05 发布日期:2015-09-05
通讯作者: 马学虎
基金资助:
国家自然科学基金项目(21476037);高等学校博士学科点专项科研基金(20120041110018)。

Surface wettability effect on carbon dioxide-water two-phase flow and mass transfer in rectangular microchannel

SUN Junjie, HAO Tingting, MA Xuehu, LAN Zhong

Liaoning Provincial Key Laboratory of Clean Utilization of Chemical Resources, Institute of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China

Received:2015-07-02 Revised:2015-07-10 Online:2015-09-05 Published:2015-09-05
Supported by:
supported by the National Natural Science Foundation of China (21476037) and Doctoral Program Foundation of Institutions of Higher Education of China (20120041110018).

摘要/Abstract

摘要：

在1 mm×1 mm矩形截面下微通道内,以二氧化碳-水为工作流体,研究壁面润湿性和气液表观流速对气-液两相流型和气液传质的影响,并研究了气、液表观流速对弹状流流体力学性质的影响。在亲水微通道中观测到了泡状流、泡状-弹状流、弹状流;在疏水微通道中观测到了非对称弹状流、拉长的非对称弹状流、分层流。实验表明亲水微通道中弹状流区域下气泡长度大体上随气相表观流速的增大而增大,随液相表观流速的增大而减小;液弹长度大体上随气相表观流速的增大而减小,随液相表观流速的增大先增大后减小;液侧体积传质系数k_La均随气、液相表观流速的增大而增大,随通道壁面润湿性的增强而增大。

关键词: 微通道, 气-液两相流, 弹状流, 流体力学性质, 传质, 亲水, 疏水

Abstract:

An experimental investigation was conducted with a high-speed camera to explore the hydrodynamics characteristics of slug flow in a microchannel with a cross-section of 1 mm×1 mm. Pure carbon dioxide and water were used as working fluids. The influence of superficial gas and liquid velocities and the wettability of microchannel on the two-phase flow pattern and mass transfer was investigated. In the hydrophilic microchannel, bubbly flow, bubbly-slug flow and slug flow were observed. In the hydrophobic microchannel, asymmetric slug flow, elongated asymmetric slug flow, stratified flow were found. It was shown that in slug flow of the hydrophilic microchannel, the length of bubble increased generally with the increase of superficial gas velocities and the decrease of superficial liquid velocities. The length of liquid slug decreased generally with the increase of superficial gas velocities, and increased firstly and then decreased generally with the increase of superficial liquid velocities. As the improvement of superficial gas and liquid velocities, the liquid volumetric mass transfer coefficient k_La increased. The liquid volumetric mass transfer coefficient k_La in the hydrophilic microchannel was higher than that in the hydrophobic microchannel.

Key words: microchannel, gas-liquid two-phase flow, slug flow, hydrodynamics characteristics, mass transfer, hydrophilic, hydrophobic

中图分类号:

TQ021.1

孙俊杰, 郝婷婷, 马学虎, 兰忠. 壁面润湿性对微通道内二氧化碳-水两相流流动及传质性能的影响[J]. 化工学报, 2015, 66(9): 3405-3412.

SUN Junjie, HAO Tingting, MA Xuehu, LAN Zhong. Surface wettability effect on carbon dioxide-water two-phase flow and mass transfer in rectangular microchannel[J]. CIESC Journal, 2015, 66(9): 3405-3412.

参考文献 22

[1]	Daniel G, Devanand P. Lab-on-a-chip: a revolution in biological and medical sciences [J]. Analytical Chemistry, 2000, 72(9): 330A-335A.
[2]	Ehrfeld W, Hessel V, Löwe H. Microreactors: New Technology for Modern Chemistry[M]. Weinheim: WILEY-VCH, 2000: 33-36.
[3]	Chen Guangwen(陈光文), Yuan Quan(袁权). Micro-chemical technology [J]. Journal of Chemical Industry and Engineering (China) (化工学报), 2003, 54(4): 427-439.
[4]	Cao Bin(曹彬), Chen Guangwen(陈光文), Yuan Quan(袁权). Catalytic combustion of hydrogen /air in microchannel reactor [J]. Journal of Chemical Industry and Engineering(China)(化工学报), 2004, 55(1): 42-47.
[5]	Yue Jun(乐军), Chen Guangwen(陈光文), Yuan Quan(袁权), Luo Ling'ai(罗灵爱). Mass transfer in gas-liquid flow in microchannel [J]. Journal of Chemical Industry and Engineering(China)(化工学报), 2006, 57(6): 1296-1303.
[6]	Li S, Xu J, Wang Y, et al. Mesomixing scale controlling and its effect on micromixing performance [J]. Chemical Engineering Science, 2007, 62(13): 3620-3626.
[7]	Luo Guangsheng(骆广生), Xu Jianhong(徐建鸿), Li Shaowei(李少伟), Wang Yujun(王玉军), Wang Jiading(汪家鼎). Research and development of two-liquid phase flow in micro-structured devices [J]. Modern Chemical Industry(现代化工), 2006, 26(3): 19-23.
[8]	Wu W, Qian G, Zhou X G, et al. Peroxidization of methyl ethyl ketone in a microchannel reactor [J]. Chemical Engineering Science, 2007, 62(18): 5127-5132.
[9]	Tu Shantung(涂善东), Zhou Guoyan(周帼彦), Yu Xinhai(于新海). Microminiaturization of chemo-mechanical system and energy conservation [J]. Chemical Industry and Engineering Progress(化工进展), 2007, 26(2): 253-261.
[10]	Wegeng R S, Drost M K, Brenchley D L. Process intensification through miniaturization of chemical and thermal systems in the 21st century∥Proc.3rd Int Conf Microreaction Technology (IMRET3) [C]. Berlin: Springer, 2000: 2-13.
[11]	Service R F. Miniaturization puts chemical plant where you want them [J]. Science, 1998, 282: 400.
[12]	Jensen K F. Microreaction engineering-is small better? [J]. Chemical Engineering Science, 2001, 56(2): 293-303.
[13]	Chen Guangwen(陈光文), Yuan Quan(袁权). Micro-chemical technology [J]. Journal of Chemical Industry and Engineering (China)(化工学报), 2003, 54(4): 427-439.
[14]	Yue Jun(乐军), Chen Guangwen(陈光文), Yuan Quan(袁权). Principles and applications of micromixing technology [J]. Chemical Industry and Engineering Progress(化工进展), 2004, 23(12): 1271-1276.
[15]	de Mas N, Jackman R, Schmidt M, et al. Microchemical systems for direct fluorination of aromatics// Fifth International Conference on Microreaction Technology (IMRET5)[C]. Berlin: Springer-Verlag 2001,60-67.
[16]	Triplett K A, Ghiaassiaan S M, Abdel-Khalik S I, et al. Gas-liquid two-phase flow in microchannels(Ⅰ): Two-phase flow pattern [J]. International Journal of Multiphase Flow, 1999, 25(3): 377-394.
[17]	Lee C Y, Lee S Y. Influence of surface wettability on transition of two-phase flow pattern in round mini-channels [J]. International Journal of Multiphase Flow, 2008, 34(7): 706-711.
[18]	Zhao C X, Middelberg A P J. Two-phase microfluidic flows [J]. Chemical Engineering Science, 2011, 66(7):1394-1411.
[19]	Aoki N, Tanigawa S, Mae K. Design and operation of gas-liquid slug flow in miniaturized channels for rapid mass transfer [J]. Chemical Engineering Science, 2011, 66(24): 6536-6543.
[20]	van Baten J M, Krishna R. CFD simulations of mass transfer from Taylor bubbles rising in circular capillaries [J]. Chemical Engineering Science, 2004, 59(12): 2535-2545.
[21]	Choi C, Yu D I, Kim M. Surface wettability effect on flow pattern and pressure drop in adiabatic two-phase flows in rectangular microchannels with T-junction mixer [J]. Experimental Thermal and Fluid Science, 2011, 35(6): 1086-1096.
[22]	Wielhorski Y, Abdelwahed M A B, Bizet L, Bréard J. Wetting effect on bubble shapes formed in a cylindrical T-junction [J]. Chemical Engineering Science, 2012, 84: 100-106.

壁面润湿性对微通道内二氧化碳-水两相流流动及传质性能的影响

Surface wettability effect on carbon dioxide-water two-phase flow and mass transfer in rectangular microchannel

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献 22

相关文章 15

编辑推荐

Metrics

本文评价

[1]	晁京伟, 许嘉兴, 李廷贤. 基于无管束蒸发换热强化策略的吸附热池的供热性能研究[J]. 化工学报, 2023, 74(S1): 302-310.
[2]	吴馨, 龚建英, 靳龙, 王宇涛, 黄睿宁. 超声波激励下铝板表面液滴群输运特性的研究[J]. 化工学报, 2023, 74(S1): 104-112.
[3]	苏伟, 马东旭, 金旭, 刘忠彦, 张小松. 表面润湿性对霜层传递特性影响可视化实验研究[J]. 化工学报, 2023, 74(S1): 122-131.
[4]	江河, 袁俊飞, 王林, 邢谷雨. 均流腔结构对微细通道内相变流动特性影响的实验研究[J]. 化工学报, 2023, 74(S1): 235-244.
[5]	李艺彤, 郭航, 陈浩, 叶芳. 催化剂非均匀分布的质子交换膜燃料电池操作条件研究[J]. 化工学报, 2023, 74(9): 3831-3840.
[6]	刘文竹, 云和明, 王宝雪, 胡明哲, 仲崇龙. 基于场协同和耗散的微通道拓扑优化研究[J]. 化工学报, 2023, 74(8): 3329-3341.
[7]	张媛媛, 曲江源, 苏欣欣, 杨静, 张锴. 循环流化床燃煤机组SNCR脱硝过程气液传质和反应特性[J]. 化工学报, 2023, 74(6): 2404-2415.
[8]	王皓, 唐思扬, 钟山, 梁斌. MEA吸收CO₂富液解吸过程中固体颗粒表面的强化作用分析[J]. 化工学报, 2023, 74(4): 1539-1548.
[9]	贾露凡, 王艺颖, 董钰漫, 李沁园, 谢鑫, 苑昊, 孟涛. 微流控双水相贴壁液滴流动强化酶促反应研究[J]. 化工学报, 2023, 74(3): 1239-1246.
[10]	刘海芹, 李博文, 凌喆, 刘亮, 俞娟, 范一民, 勇强. 羟基-炔点击化学改性半乳甘露聚糖薄膜的制备及性能研究[J]. 化工学报, 2023, 74(3): 1370-1378.
[11]	张雪婷, 胡激江, 赵晶, 李伯耿. 高分子量聚丙二醇在微通道反应器中的制备[J]. 化工学报, 2023, 74(3): 1343-1351.
[12]	钱志广, 樊越, 王世学, 岳利可, 王金山, 朱禹. 吹扫条件对PEMFC阻抗弛豫现象和低温启动的影响[J]. 化工学报, 2023, 74(3): 1286-1293.
[13]	何洋, 高森虎, 吴青云, 张明理, 龙涛, 牛佩, 高景辉, 孟颖琪. 析湿工况下平直开缝翅片传热传质特性的数值研究[J]. 化工学报, 2023, 74(3): 1073-1081.
[14]	杨星宇, 马优, 朱春英, 付涛涛, 马友光. 梳状并行微通道内液液分布规律研究[J]. 化工学报, 2023, 74(2): 698-706.
[15]	项星宇, 王忠东, 董艳鹏, 李守川, 朱春英, 马友光, 付涛涛. 微通道内屈服应力型流体的流变特性及多相流研究进展[J]. 化工学报, 2023, 74(2): 546-558.