生成物CO_2能否及时排除流道和甲醇溶液能否更有效的传输到扩散层对液体进料的直接甲醇燃料电池性能有着重要影响.Volume of Fluid(VOF)可以用来研究平行流道孔逸出CO_2气体的演变,包括气泡的生长、变形、脱离及运动规律.通过建立流道...生成物CO_2能否及时排除流道和甲醇溶液能否更有效的传输到扩散层对液体进料的直接甲醇燃料电池性能有着重要影响.Volume of Fluid(VOF)可以用来研究平行流道孔逸出CO_2气体的演变,包括气泡的生长、变形、脱离及运动规律.通过建立流道的三维模型,研究了湿润性对流道中气泡演变的影响.通过软件FLUENT进行模拟,模拟分析了亲水性(35°)、中性(90°)、弱疏水性(115°)、强疏水性(125°)情况的扩散层壁面,结果表明:气泡是由两相流的压力差和表面张力共同作用形成的,弱疏水性的扩散层表面有利于气泡脱离及气泡聚合的过程.弱疏水性的扩散层表面相对于亲水性的壁面,气泡排出的更稳定;弱疏水性的扩散层表面相对于强疏水性壁面,气泡脱离体积更小,脱离的时间更短.展开更多
The kinds and the distribution of the coal in China are investigated. The results indicated that the 80% coal in China is used by the method of the coal gasification. The possibility of utilization and development of ...The kinds and the distribution of the coal in China are investigated. The results indicated that the 80% coal in China is used by the method of the coal gasification. The possibility of utilization and development of the fuel cell power plant in China is analyzed. A combined cycle generation system is designed. Its net electrical efficiency is about 55%(LHV), which is higher than that of the fire power plant. So it is environmental friendly and high efficient generation mode.展开更多
文摘生成物CO_2能否及时排除流道和甲醇溶液能否更有效的传输到扩散层对液体进料的直接甲醇燃料电池性能有着重要影响.Volume of Fluid(VOF)可以用来研究平行流道孔逸出CO_2气体的演变,包括气泡的生长、变形、脱离及运动规律.通过建立流道的三维模型,研究了湿润性对流道中气泡演变的影响.通过软件FLUENT进行模拟,模拟分析了亲水性(35°)、中性(90°)、弱疏水性(115°)、强疏水性(125°)情况的扩散层壁面,结果表明:气泡是由两相流的压力差和表面张力共同作用形成的,弱疏水性的扩散层表面有利于气泡脱离及气泡聚合的过程.弱疏水性的扩散层表面相对于亲水性的壁面,气泡排出的更稳定;弱疏水性的扩散层表面相对于强疏水性壁面,气泡脱离体积更小,脱离的时间更短.
基金supported by the National Nature Science Foundation of China(51302119,51162014 and 51462011)Anhui University personnel start-up funding(10117700069)~~
文摘The kinds and the distribution of the coal in China are investigated. The results indicated that the 80% coal in China is used by the method of the coal gasification. The possibility of utilization and development of the fuel cell power plant in China is analyzed. A combined cycle generation system is designed. Its net electrical efficiency is about 55%(LHV), which is higher than that of the fire power plant. So it is environmental friendly and high efficient generation mode.
