电池2018，Vol.48Issue(1)：21-24,4.DOI:10.19535/j.1001-1579.2018.01.006
沟道截面形状对μDMFC气液输运的影响
Effect of channel shapes on gas-liquid transportation of μDMFC
摘要
Abstract
To study the effects of cross-section shape containing gas rate and pressure drop characteristics on the flow field plates,by keeping the same hydraulic diameter,the rectangle,triangle,hemicycle,trapezoid and inverted trapezoid cross-section channel were designed,respectively,the micro direct methanol fuel cell(μDMFC) anode channel of gas-liquid two-phase flow based on the volume of fluid(VOF) method was simulated.For the rectangle cross-section channel in the single flow field plate,the gas rate was stable at 0.55,the average value of pressure drop was 750 Pa which was minimum thus suitable for optimization.In the case of the same cross-section,for the double flow field plate,the gas rate was about 50％ lower than that of the single flow field plate and the average value of pressure drop was also lower,while the gas rate was the lowest (less than 0.2),the average value of pressure drop was minimum (less than 200 Pa) for the triangle cross-section shape channel which could be used as the optimized shape.关键词
阳极流场/润湿/微型直接甲醇燃料电池(μDMFC)/气液输运/模拟Key words
anode flow field/wetting/micro direct methanol fuel cell(μDMFC)/gas-liquid transportation/simulation分类
信息技术与安全科学引用本文复制引用
时均浩,李苗苗..沟道截面形状对μDMFC气液输运的影响[J].电池,2018,48(1):21-24,4.基金项目
国家自然科学基金(51505215),江苏省自然科学基金青年基金(BK20130804) （51505215）
