首页 | 本学科首页   官方微博 | 高级检索  
     检索      

直接甲醇燃料电池双极板冷却通道的热设计
引用本文:黄庆,施明恒.直接甲醇燃料电池双极板冷却通道的热设计[J].东南大学学报(自然科学版),2004,34(1):63-66.
作者姓名:黄庆  施明恒
作者单位:东南大学动力工程系,南京,210096;东南大学动力工程系,南京,210096
基金项目:国家重点基础研究发展计划(973计划)
摘    要:将单个直接甲醇燃料电池的固体骨架看成开口系统,燃料电池稳定运行时的热负荷由阳极反应、阴极反应和甲醇直接氧化反应产生的3部分热量组成,利用热力学原理将其计算.在双极板上设置平行的冷却通道,将电池电化学反应产生的热量及时排出,有利于燃料电池的稳定运行.根据燃料电池中燃料、氧化剂的流向和冷却通道内冷却水流向的不同,冷却水和壁面的换热分别在恒热流密度和恒壁温热边界条件下进行.计算了2种情况下冷却通道壁面的温度和换热系数.结果表明,前者的换热效果要比后者好,但是,后者保证了工作层面具有恒定的温度,更有利于直接甲醇燃料电池的稳定运行.

关 键 词:直接甲醇燃料电池  热负荷  冷却  设计
文章编号:1001-0505(2004)01-0063-04

Analysis of heat load and design of the cooling passage in a direct methanol fuel cell
Huang Qing,Shi Mingheng.Analysis of heat load and design of the cooling passage in a direct methanol fuel cell[J].Journal of Southeast University(Natural Science Edition),2004,34(1):63-66.
Authors:Huang Qing  Shi Mingheng
Abstract:The single direct methanol fuel cell(DMFC) is regarded as an open system. The heat loads in DMFC are composed of the ones generated by the reactions in anode and cathode and direct oxidation.They are calculated based on the thermodynamical principle. Removal of reactive heat in direct methanol fuel cell is favorable to operate fuel cell effectively and safely.According to the flowing directions of the fuel and cooling water, two different cooling boundary conditions are discussed and calculated. The results show that the cooling passage under a constant wall temperature boundary condition is better than that of a constant heat flux boundary condition,and it is preferable to use in the cooling of DMFC.
Keywords:direct methanol fuel cell  heat loads  cooling passage  design
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号