摘要
传统质子交换膜燃料电池运行中需要冷却系统带走电池生成的热量,这导致了电池系统十分笨重庞大,限制了燃料电池的应用。为了简化燃料电池系统,本文设计并实验研究了风冷燃料电池堆。本文利用流体力学知识,设计了风冷燃料电池堆的流场结构,优化电堆运行参数。风冷燃料电池装置的简化使其和传统燃料电池的操作条件有较大差异,本文对风冷电堆的热平衡进行探讨,对不同操作条件对电堆的性能影响进行实验研究。得出了500W风冷燃料电池的单电池数为20片,单电池活性面积为140cm^2,氢气流道双蛇形,规格尺寸为7×20cm^2,空气直流道,规格尺寸为7×20cm^2。当负载600mA·bcm^(-2)电流密度时,风冷电堆最佳性能所需的温度是46℃,最佳风量为2. 68m^3/min。
The conventional proton exchange membrane fuel cell operation requires the cooling system to take away the heat generated by the battery,which leads to the heavy and bulky battery system and limits the application of the fuel cell. In order to simplify the fuel cell system,the air-cooled fuel cell reactor is designed and experimentally studied. In this paper,the flow field structure of the air-cooled fuel cell reactor is designed,and the operating parameters of the reactor are optimized. The simplification of the air-cooled fuel cell device makes it quite different from the operating conditions of conventional fuel cells. In this paper,the thermal balance of the air-cooled power reactor is discussed,and the effect of different operating conditions on the performance of the power reactor is studied experimentally. It is concluded that the single battery number of 500 W air-cooled fuel cell is 20,the single battery active area is 140 cm^2,the hydrogen flow channel is double serpentine,the specification size is 7 ×20 cm^2,the air direct current channel is 7 × 20 cm^2,the specification size is 7 × 20 cm^2. When load is 600 mA·bcm^2-current density,air cooled electric pile 46℃ temperature is needed for the best performance,the best air volume is 2. 68 m^3/min.
作者
阮敬杰
伊春明
吴行阳
Ruan Jingjie;Yi Chunming;Wu Xingyang
出处
《计量与测试技术》
2018年第9期20-23,共4页
Metrology & Measurement Technique
关键词
骨水泥
静态力学性能
疲劳性能
bone cement
static mechanical properties
fatigue performance
