In the process of rapid hydrogen filling for fuel cell vehicles

the rapid compression of hydrogen will lead to rapid rise of hydrogen rate

resulting in potential safety hazards. Through the heat transfer model applicable to the filling process

the temperature in the on-board hydrogen storage bottle during the whole operation process can be correctly predicted. Based on this

the filling simulation is carried out at a variable mass rate

and the changes of temperature

filling rate

energy consumption and other parameters during the filling process of hydrogen are obtained. The results show that

different hydrogenation rates not only affect the filling time of hydrogen

but also affect the temperature of hydrogen when the hydrogen storage bottle is full. The higher the hydrogenation rate

the shorter the hydrogen filling time

and the higher the final hydrogen temperature when the hydrogen storage bottle is full. During variable mass filling

the time required for filling

the final temperature of hydrogen

and the cooling energy consumption during the filling are only related to the average mass flow of variable mass filling during the filling period

and have nothing to do with the fluctuation of its mass rate.