The storage performance of automotive cryo-compressed hydrogen vessels

摘要: Abstract Cryo-compressed hydrogen storage promises to deliver the highest system density leading practical vehicles with range comparable today's gasoline and fundamental cost safety advantages. However, cryogenic vessels are complex systems, continuously drifting in thermodynamic space depending on use patterns, insulation performance, vessel characteristics, liquid pump para-H2 ortho-H2 conversion. In this paper, fill results from a previous publication extended calculate including volumetric (gH2/L), gravimetric (H2 weight fraction), vent losses over broad of conditions. The confirm experiments models indicating that pressure have maximum all available technologies while avoiding but most extreme situations. Design pressures 250–350 bar seem advantageous due high low cost, although determining an optimum demands complete economic functional analysis. Future insulation, vessel, improvements finally analyzed that, not experimentally demonstrated date, show promise being feasible future as their level technical maturity increases, H2 performance for cryo-compressed storage. If proven incorporated into vessels, these will enable 50 + gH2/L at 10+% fraction.