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| Measurement of flow field in plug flow electrochemical reactor with mesh plate electrode |
| SHAO Bi-juan1,LI Xiang-peng2,LI Ting-ting1,WANG Jia-de1 |
| 1. College of Biological and Environmental Engineering,Zhejiang University of Technology,Hangzhou 310014,China; 2.College of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310014,China |
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Abstract The particle image velocimetry (PIV) was used to measure the overall flow field of the plug flow electrochemical reactor with mesh plate electrode (MPE-PFER) in wastewater treatment. The velocity field distribution in the inlet section and central reaction section was analyzed. The influences of entrance velocity and inlet configuration on fluid field distribution and pressure drop were studied. Results showed that the entrance region was a transition zone and greatly affected by the inlet design. The flow in the central region was usually stable and regular, and the velocity gradient and pressure drop obviously increased with the flow rate increasing. The design with inlet tangential to the reactor wall was the best for its well-distributed flow fields and low pressure drop.
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Published: 06 June 2018
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网板结构柱塞流电化学反应器流场的测试
采用粒子图像测速技术（PIV）对用于废水处理的网板结构柱塞流电化学反应器（MPE-PFER）进行全流场测试,分析反应器入口区域及中部反应段截面的速度场分布；考察进口方式和流速对反应器流场分布和进出口压差的影响.实验结果表明,反应器入口区域属流体流动过渡区,受进口方式的影响较大；反应器中部区域流场稳定、规则,速度梯度、进出口压差随流体速度的增大而明显增加；切向进口下的流场均匀,能量损失少,为最佳的反应器入口结构.
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