Investigation on Performance of Large-Scale Hydrogen Liquefiers Based on Collins and Claude Cycles

The large-scale hydrogen liquefier is a complex system with high energy consumption and multi-parameter coupling. The design calculation of the hydrogen liquefier is commonly based on steady-state conditions. In this paper, two hydrogen liquefaction systems based on Claude and Collins cycles are simulated and analyzed. The performances of the two systems including total UA of exchangers, specific energy consumption and exergy efficiency are compared, respectively. The results show that hydrogen liquefaction system of Claude cycle has higher energy efficiency and UA than that of Collins cycle. This paper provides references for the selection of process form for hydrogen liquefiers.