Technical assessment and feasibility validation of liquid hydrogen storage and supply system for heavy-duty fuel cell truck

In this paper, the advantages and disadvantages of compressed gaseous hydrogen system and liquid hydrogen system are compared and analyzed from the perspective of hydrogen storage density and energy consumption. It is proved that on-board liquid hydrogen system is the most economical and efficient and environmentally friendly choice for heavy-duty trucks which are running continuously at high speed and long distance. This paper also conducted a joint test of a large-capacity liquid hydrogen system and a fuel cell system. The results show that the on-board liquid hydrogen system can provide relatively stable pressure for the fuel cell stack at dynamic and steady-state conditions. The liquid hydrogen system is highly compatible with fuel cell system and can be applied to high-power fuel cell system. This study makes it promising to develop a new generation of heavy-duty fuel cell truck with long driving range, high load capacity and high power.