质子交换膜燃料电池
堆栈(抽象数据类型)
核工程
工作温度
冷启动(汽车)
水冷
材料科学
汽车工程
化学
废物管理
化学工程
机械工程
工程类
电气工程
燃料电池
计算机科学
程序设计语言
作者
Runqi Zhu,Lu Xing,Zhengkai Tu
标识
DOI:10.1016/j.enconman.2021.115182
摘要
• High-temperature proton-exchange membrane fuel cell used for vehicle application. • Oil cooling based thermal management system is designed and modeled. • Increase operating temperature to 448 K reduce heat produced due to poisoning effect. • Maintain inlet temperature constant (435–445 K) and adjust flow rate (2.5–5 kg/s) • 39 kW recoverable waste heat is available due to significant temperature differences. Proton exchange membrane fuel cell, which utilizes mainly hydrogen for fuel, has many advantages for vehicle applications. Compared to conventional low-temperature proton exchange membrane fuel cell (60–80 °C), high-temperature fuel cell (120–180 °C) requires a simpler system. It is characterized by enhanced electrochemical kinetics and can use liquid fuel such as methanol due to higher carbon monoxide tolerance. In this paper, phosphoric acid doped high-temperature proton exchange membrane fuel cell with a reformer system is applied for powering an automotive vehicle. Thermal management and control of the fuel cell stack for performance optimization remain critical. This paper aims to analyze the heat dissipation requirement for high-temperature fuel cell vehicles and propose cooling strategies for optimizing the performance. A simulation model of the high-temperature proton exchange membrane fuel cell stack and its oil cooling system were developed. The stack model had been validated against experimental results. The case study results show that increasing carbon monoxide concentration will increase the voltage loss. Increased operating temperature to 448 K reduces the stack heat generation due to the poisoning effect. It is suggested to keep the inlet cooling oil temperature constant within the range of 435–445 K and adjust the cooling oil flow rate (2.5–5 kg/s) to meet the heat dissipation requirement for the fuel cell stack. Due to the significant temperature difference between the fuel cell and the external environment (>150 K), the recoverable waste heat is about 39 kW.
科研通智能强力驱动
Strongly Powered by AbleSci AI