新型变压吸附制氧-PEMFC集成系统性能分析  

Performance Analysis of a New Pressure Swing Adsorption Oxygen Production-PEMFC Integrated System

作　　者：付丽荣 蔡浪 刘进一 邱娜 邓美隆 张筱松 FU Lirong;CAI Lang;LIU Jinyi;QIU Na;DENG Meilong;ZHANG Xiaosong(Mechanical and Electrical Engineering College,Hainan University,Haikou 570228,China)

机构地区：[1]海南大学机电工程学院,海口570228

出　　处：《工程热物理学报》2023年第10期2639-2646,共8页Journal of Engineering Thermophysics

基　　金：海南省自然科学基金(No.521RC492);海南省教育厅项目(No.Hnkyzc2022-3);海南省科技项目资助(No.ZDYF2021GXJS022)。

摘　　要：本文提出一种变压吸附制氧与质子交换膜燃料电池(PEMFC)相结合的新型发电系统。该系统利用PEMFC产生的电能给制氧子系统提供能量,制氧装置为燃料电池供给所需浓度的氧化剂,避免了制取高浓度氧气能耗骤升的现象,以实现能量的高效利用。采用COMSOL软件建立高温PEMFC三维模型并仿真,在分析阴极氧化剂的氧气浓度对PEMFC性能影响和制取不同浓度氧气能耗基础上,研究了氧气浓度对该系统净功率与效率的影响,并提出集成系统性能优化方案。结果表明:PEMFC的氧化剂最佳氧气浓度为80%,新集成系统获得最大净功率15.75 W,同时效率达到了64%,与氧化剂为纯氧气的常规系统相比,新系统输出功率和效率同时提升了8.3%和18.5%,新型系统实现最大输出功率的同时获得较高的效率。tIn this paper,a new power generation system combining oxygen production with proton exchange membrane fuel cell(PEMFC)by Pressure Swing Adsorption(PSA)is proposed.The electricity generated by PEMFC is used to provide energy for the oxygen producing subsystem,while the required concentration of oxidant to the fuel cell is supplied by the oxygen producing device,avoiding the sudden rise of energy consumption in producing high concentration of oxygen,which make the utilization of energy in the new system more efficient.The 3D model of HT-PEMFC was established and simulated by COMSOL software.Based on the analysis of the influence of concentration of oxygen of cathode oxidizer on the performance of HT-PEMFC and the energy consumption of producing different concentration of oxygen,the influence of concentration of oxygen on net power and eficiency of the system was studied,and the performance optimization scheme of integrated system was proposed.The results show that the optimal concentration of oxygen of oxidant of the new integrated system is 80%,and the maximum net power of the system is 15.75 W,while the efficiency is 64%.Compared with the conventional system,the output power and efficiency of the system are both increased by 8.3%and 18.5%.The new system achieves the maximum output power and higher efficiency at the same time.

关 键 词：高温质子交换膜燃料电池 制氧能耗 集成系统 氧气浓度 性能 

分 类 号：TM911.4[电气工程—电力电子与电力传动]