氢能重载列车加氢站工艺优化研究

Process optimization of hydrogen refueling station for hydrogen-powered heavy-duty trains

针对重载列车的大容量储氢特点,研究了加氢站配置对加注性能的影响。利用动态工艺建模实现了加氢站的高精度仿真,研究了加氢站加注性能影响规律。结果表明,当管束车压力较低时,加氢站加注能力显著下降,通过提升压缩机排量和增加站内储氢量能够提升加氢站加注能力。对比研究了4类加氢站配置,结果表明,当采用压缩机排量500 m^(3)/h、各级储氢水容积5 m^(3)和压缩机排量1000 m^(3)/h、各级储氢水容积3 m^(3)的2类配置时,加氢站的加注性能接近,可满足储氢量150、65 kg的重载列车分别在50、20 min内加满。

The large scale application of hydrogen-powered heavy-duty trains will help reduce fossil fuel consumption and reduce carbon dioxide emission.While the on-board hydrogen storage capacity usually exceeds 50 kg,the influence of hydrogen refueling station configuration on refueling performance is studied.The high-precision simulation to hydrogen refueling station is realized by using the dynamic process modeling,and the influence of the refueling performance is studied.Results show that the fueling capacity decreases significantly when the pressure of the tube trailer is low.The fueling performance of hydrogen refueling station can be improved through increasing the compressor capacity and the hydrogen storage bank in the station.Four kinds of hydrogen refueling station configurations are compared and studied.It is shown that the fueling capacity of the hydrogen refueling station with compressor capacity of 500 m^(3)·h^(-1)and hydrogen storage bank size of 5 m^(3)is comparable with that of the hydrogen refueling station with compressor capacity of 1000 Nm^(3)·h^(-1)and hydrogen storage bank size of 3 m^(3),both can fill up the heavy-duty trains with hydrogen storage capacity of 150 kg and 65 kg in 50 minutes and 20 minutes,respectively.