TY - EJOU AU - Hui, Bo AU - Zhu, Shengneng AU - Su, Sijun AU - Li, Wenjuan TI - The Effect of Inlet Angle Structure of Concave and Convex Plate on Internal Flow Characteristics of Alkaline Electrolyzer T2 - Frontiers in Heat and Mass Transfer PY - 2024 VL - 22 IS - 3 SN - 2151-8629 AB - 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. KW - Inlet angle structure; vortex motion; distribution uniformity; computational fluid dynamics simulation DO - 10.32604/fhmt.2024.051387