质子交换膜燃料电池引射器的设计及特性

Hydrogen recirculating Ejector for Proton Exchange Membrane Fuel Cell System: Design and Performance

摘要:

提出了以文丘里管引射器为循环装置的供应系统.以索科洛夫的引射器设计方法为基础，针对某高压质子交换膜燃料电池（PEMFC）系统对引射器进行结构设计及特性研究，并对其进行了试验验证.结果表明：增大引射器出口压力和引射流体压力可使引射系数得到提高；工作流体压力对引射器性能的影响随引射器出口所处工况的变化而变化.

Abstract:

A novel design of fuel delivery system (FDS) with Venturi ejector is presented. Based on the designing experience and Соколов’s theoretical method, an ejector for a high pressure proton exchange membrane fuel cell (PEMFC) system is designed in detail. Analysis of its potential performance has been made across a wide range of operating conditions, both the calculation and test validation are completed well. The results show to increase the ejector outlet pressure and the ejector fluid pressure can improve the ejecting factor; while the effect of working fluid pressure on ejector performance changes with the ejector exit conditions.