质子交换膜燃料电池
堆栈(抽象数据类型)
响应面法
氢
体积流量
电流密度
背景(考古学)
材料科学
电流(流体)
分析化学(期刊)
电压
热力学
核工程
机械
化学
膜
电气工程
色谱法
计算机科学
物理
古生物学
有机化学
工程类
程序设计语言
生物
量子力学
生物化学
作者
Elif Eker Kahveci,İmdat Taymaz
标识
DOI:10.1016/j.ijhydene.2021.09.119
摘要
Although many studies have been done on finding operating conditions of hydrogen-fed fuel cells before, it remains one of the most critical points in determining its parameters in the process. So this paper aims to investigate experimentally the reactant gases flow rate and cell voltage which have a significant impact on the current density of a 3-cell Proton Exchange Membrane fuel cell stack having a 150 cm2 active layer. In this case, to determine the optimum values, Design of Experiment and Response Surface Methodology was applied to the experimental system at low 1.5 V, medium 1.8 V, and high 2.1 V. Then, they were compared with each other. In this context, keeping the hydrogen flow rate low and obtaining high current density is one of the main targets; at low voltage values, it was concluded that the flow rate should be increased due to the reaction rate increases with temperature. In general, the effect of humidification and cell temperature on performance was seen more prominently at 1.8 V. The highest current density values that were 313.66 mA/cm2, 336.75 mA/cm2, and 323.48 mA/cm2, respectively, were reached at flow rates of 1 L/min,1.3 L/min,1.6 L/min.
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