喷射器在燃料电池阳极循环回收系统中的应用

Study of ejector application in fuel cell anode recirculation system

在燃料电池阳极系统中,使用喷射器装置将阳极未反应完的燃料循环回收,可以在保证燃料充分供应的同时,避免由于燃料浪费而导致整个系统效率降低。在完成喷射器的设计和模型之后,将其与燃料电池及其他装置集成,实现了完整的燃料电池阳极循环回收系统模型。在MATLAB/SIMULINK环境里,采用比例-积分-微分(PID)方法控制阳极的湿度和压力,实现了燃料电池阳极系统的实时仿真运行,运行性能稳定。

In fuel cell anode system, hydrogen can be re-circulated to the stack entrance by means of an ejector, which can prevent an overall system efficiency drop caused by fuel exhaust when supplying excess hydrogen flow through the stack. This paper, after designing and modeling the ejector, integrated the ejector with fuel cell and other components, so completed the total fuel cell anode recirculation system model. In MATLAB/SIMULINK simulation environment, using the PID method to control the anode humidity and pressure, the fuel cell anode system model can operate in real-time, and operation is stable.