燃料电池用空气加湿塔工艺条件对空气湿度的影响研究
黄波 , 马云龙 , 龙雨谦 , 胡像锋 , 李全领 , 雷姣
现代化工 ›› 2026, Vol. 46 ›› Issue (1) : 239 -244.
燃料电池用空气加湿塔工艺条件对空气湿度的影响研究
Study of the process conditions effect on air humidity in air humidification towers for fuel cell systems
针对100 kW质子交换膜燃料电池发电系统用空气填料加湿塔,采用Aspen Plus软件建立空气加湿过程模拟流程,分别考察加湿喷淋水温度、加湿喷淋水流量和空气入口温度和湿度对加湿后空气湿度的影响。模拟计算结果表明,前三者对加湿后空气湿度均有影响,其中加湿喷淋水流量影响最大,空气入口温度和湿度的影响几乎可以忽略,加湿喷淋水温度影响介于两者之间。兼顾加湿塔出口空气湿度和系统经济性,典型的100 kW燃料电池发电系统最适宜的加湿喷淋水温度为62℃,最适宜加湿喷淋水流量为2 600~3 000 kg/h。加湿塔对进口空气温度及湿度剧烈扰动有良好的适应性,一方面可以减小环境温度变化对系统性能指标和稳定性的影响,同时可取消空压机出口中冷器,实现降低系统复杂性,提高系统经济性的目的。搭建了100 kW燃料电池发电用加湿试验装置,并进行了试验验证,验证结果表明,试验装置能够满足100 kW燃料电池发电系统对空气湿度的要求,试验结果与模拟计算结果吻合,为加湿塔进一步设计优化奠定了坚实的基础。
A simulation model of the air humidification process in the packed tower is established,which is used for a 100 kW proton exchange membrane fuel cell power generation system.In the simulation model,the effects of spray water temperature,spray water flow rate,air inlet temperature and humidity on the humidity of the outlet air from the packed tower were investigated respectively.The simulation results show that the first three factors have an impact on the outlet air humidity,of which the spray water flow rate has the greatest impact,air inlet temperature and humidity are almost negligible,and the spray water temperature is between the two.Considering the outlet air humidity of the packed tower and system economy,the most suitable spray water temperature for the representative 100 kW fuel cell power generation system is 62℃,and the most suitable spray water flow rate is 2 600 kg/h to 3 000 kg/h.The packed tower has good adaptability to the severe disturbance of inlet air temperature and humidity,which can reduce the impact of ambient temperature changes on system performance and stability,and can also eliminate the intercooler at the outlet of the air compressor,thus reducing the complexity and lowering the cost of the system.A humidification test platform for a 100 kW fuel cell power generation system was built and experimentally verified.The test results show that the packed tower can meet the air humidity requirements of the 100 kW fuel cell power generation system,and the test results match the simulation results.The study lays a solid foundation for the further design optimization of the humidification tower.
燃料电池 / Aspen Plus / 加湿 / 填料塔
fuel cell / Aspen Plus / humidification / packed tower
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