Hydrogen on-board storage for vehicles with internal combustion engines or fuel cells has become an important challenge. Mobile liquid hydrogen storage systems have been continuously developed since many years. Latest tank generations had to be designed as compact modules and higher efficiencies were expected. Subsequently better technical solutions were and are required. The developments have led to approved and reliable prototypes. At first sight there seems not to be a great difference between the aluminium design and the former steel constructions. However it represents a big step towards weight reduction. Although storage mass and thermal quality data are comparable to the preceding steel constructions the weight of the empty system could be reduced by about 50 % down to 66 kg. This corresponds to an increase of the hydrogen storage efficiency from about 9 % to 15 % in one go. However for future series productions there is still a high potential for further optimizations and cost reduction.
Liquid hydrogen technologies for mobile use
Flüssigwasserstofftechnologien für Fahrzeuge
2006
9 Seiten, 9 Bilder, 7 Quellen
Conference paper
Storage medium
English