The Effect of Inlet Angle Structure of Concave and Convex Plate on Internal Flow Characteristics of Alkaline Electrolyzer  

作　　者：Bo Hui Shengneng Zhu Sijun Su Wenjuan Li 

机构地区：[1]Key Laboratory of Low-Grade Energy Utilization Technologies and Systems,Ministry of Education,School of Energy and Power Engineering,Chongqing University,Chongqing,400044,China [2]Lanzhou Lanshi Group Co.,Ltd.,Lanzhou,730300,China

出　　处：《Frontiers in Heat and Mass Transfer》2024年第3期855-868,共14页热量和质量传递前沿（英文）

基　　金：supported by Science and Technology Projects of Gansu,China(No.22ZD6GA014).

摘　　要：The structure of the concave-convex plates has proven to be crucial in optimizing the internal flow characteristics of the electrolyzer for hydrogen production.This paper investigates the impact of the gradual expansion angle of the inlet channel on the internal flow field of alkaline electrolyzers.The flow distribution characteristics of concave-convex plates with different inlet angle structures in the electrolytic cell is discussed.Besides,the system with internal heat source is studied.The results indicate that a moderate gradual expansion angle is beneficial for enhancing fluid uniformity.However,an excessively large gradual expansion angle may lead to adverse reflux phenomena,reducing the overall performance of the electrolytic cell.

关 键 词：Inlet angle structure vortex motion distribution uniformity computational fluid dynamics simulation 

分 类 号：TQ114.26[化学工程—无机化工]