A review of key components of hydrogen recirculation subsystem for fuel cell vehicles

作     者：Han, Jiquan Feng, Jianmei Chen, Ping Liu, Yunmei Peng, Xueyuan 

作者机构：Xi An Jiao Tong Univ Sch Energy & Power Engn Xian 710049 Shaanxi Peoples R China Ningbo Green Power Hydrogen Technol Res Inst Co Lt Ningbo 315033 Zhejiang Peoples R China Xi An Jiao Tong Univ State Key Lab Multiphase Flow Power Engn Xian 710049 Shaanxi Peoples R China Xi An Jiao Tong Univ Sch Energy & Power Engn 28 Xianning West Rd Xian 710049 Peoples R China 

出 版 物：《ENERGY CONVERSION AND MANAGEMENT-X》 (Energy Convers. Manage. X)

年 卷 期：2022年第15卷

核心收录：

基　　金：National Key Research and Development Program of China [2021YFB2500500] 

主　　题：Hydrogen recirculation Fuel cell Hydrogen pump Ejector Separator 

摘      要：Hydrogen energy and fuel cell technology are critical clean energy roads to pursue carbon neutrality. The proton exchange membrane fuel cell (PEMFC) has a wide range of commercial application prospects due to its simple structure, easy portability, and quick start-up. However, the cost and durability of the PEMFC system are the main barriers to commercial applications of fuel cell vehicles. In this paper, the core hydrogen recirculation components of fuel cell vehicles, including mechanical hydrogen pumps, ejectors, and gas-water separators, are reviewed in order to understand the problems and challenges in the simulation, design, and application of these components. The types and working characteristics of mechanical pumps used in PEMFC systems are summarized. Furthermore, corresponding design suggestions are given based on the analysis of the design challenges of the mechanical hydrogen pump. The research on structural design and optimization of ejectors for adapting wide power ranges of PEMFC systems is analyzed. The design principle and difficulty of the gas-water separator are summarized, and its application in the system is discussed. In final, the integration and control of hydrogen recirculation components controlled cooperatively to ensure the stable pressure and hydrogen supply of the fuel cell under dynamic loads are reviewed.