摘要
空冷型质子交换膜燃料电池(PEMFC)电源系统中燃料电池系统和金属储氢器的热耦合管理对系统会产生重要的影响。本文通过实验分别研究将金属储氢器前置和后置这两种与燃料电池系统不同的耦合方式对燃料电池输出性能、单电池电压的均衡性以及风扇功耗的影响。结果表明,这两种不同的耦合方式对燃料电池输出性能、单电池电压的均衡性影响很小,但是对风扇功耗的影响比较明显。这主要是由于储氢器前置时空气先经过储氢器表面冷却再进入电堆,这有利于减少电堆散热所需的空气流量,从而降低风扇功耗。因此储氢器前置有利于降低系统辅助功耗,提高系统效率。
A thermally coupled management metal hydrogen and fuel cell system on power system of air-cooling proton exchange membrane fuel cell （PEMFC）has a major influence on the system. Studying the two different methods of coupling when the metal hydrogen storage in front or rear makes a difference for the performances of the fuel cell output, single battery voltage balance and fan power consumption, respectively. This is mainly because air was firstly cooled by hydrogen storage surface again into the stack when hydrogen storage device in front. It is helpful for reducing the cooling air flow that stack is conducive, thereby reducing power consumption of the fan. Therefore hydrogen storage in front is in favor of reducing auxiliary power consumption of system, the efficiency of the system was improved.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2016年第7期1819-1825,共7页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51177138
21106079)
关键词
PEMFC
金属储氢器
热耦合管理
风扇功耗
PEMFC
metal hydrogen storage
thermally coupled management
fan power consumption
