Summary

Air and hydrogen supply systems are key subsystems of polymer electrolyte membrane (PEM) fuel cell systems. This paper reviews the research on the gas (air and hydrogen) supply systems and equipment for PEM fuel cells. The scroll, screw, Roots, and centrifugal compressors are the major structures of compressors applied in the PEM fuel cells. Most studies and applications focus on air supply systems with centrifugal compressors. Four configurations of hydrogen supply systems are introduced, and characteristics of ejectors and hydrogen compressors are presented. The main technical developing directions for gas supply systems have been represented. The essential techniques involve the coupling of air compressors with PEM fuel cell systems, compressor and expander matching in the air supply system, integration of cooling and humidification in compressors, and energy utilization of high-pressure hydrogen gas.

概括

空气和氢气供应系统是聚合物电解质膜（PEM）燃料电池系统的关键子系统。本文综述了PEM燃料电池气体（空气和氢气）供应系统和设备的研究。涡旋式、螺杆式、罗茨式​​和离心式压缩机是应用于PEM燃料电池的压缩机的主要结构。大多数研究和应用都集中在带有离心压缩机的空气供应系统上。介绍了四种供氢系统配置，并介绍了喷射器和氢气压缩机的特点。阐述了供气系统的主要技术发展方向。基本技术包括空气压缩机与PEM燃料电池系统的耦合，供气系统中压缩机和膨胀机的匹配，