高温质子交换膜燃料电池实验测试系统搭建与结果分析

Construction and Result Analysis of HT-PEMFC Experimental Test System

摘要: 本文在现有质子交换膜燃料电池测试平台的基础上，通过集成加热系统，搭建了一套适用于高温质子交换膜燃料电池(HT-PEMFC)的实验测试系统。详细阐述了该系统的加热装置设计方案，以及升温速率、控温精度等关键技术指标。利用该系统，在操作压力为1 bar、氢气/空气流量为0.2/0.5 slpm的工况下，对HT-PEMFC在150℃~200℃温度范围内的升温速率、控温精度以及输出性能进行了测试。实验结果表明，所集成的加热系统能够快速、稳定地将电池温度提升至设定值；HT-PEMFC的功率密度随温度升高呈现先增后减的变化趋势，并在180℃时达到峰值。本研究为HT-PEMFC的性能测试提供了一个稳定、可靠的测试平台。

Abstract: In this paper, a test system for high-temperature proton exchange membrane fuel cells (HT-PEMFCs) was constructed by integrating a heating system onto an existing proton exchange membrane fuel cell test bench. The design scheme of the heating device and key technical indicators such as heating rate and temperature control accuracy are described in detail. Using this system, tests were carried out on the heating rate, temperature control accuracy and output performance of HT-PEMFC in the temperature range of 150˚C~200˚C under the operating conditions of 1 bar pressure and hydrogen/air flow rates of 0.2/0.5 slpm. The experimental results show that the integrated heating system can rapidly and stably raise the cell temperature to the set value; the power density of HT-PEMFC first increases and then decreases with rising temperature, reaching the maximum at 180˚C. This study provides a stable and reliable test bench for the performance evaluation of HT-PEMFC.