Figure 1 Illustration of main blocks of a hydrogen filling station based on hydrogen production onsite. The 3D drawing is from the hydrogen filling station ECTOS at Reykjavik, ref. /4/. Hydrogen is produced onsite by water electrolysis and is used to fuel 3 Daimler Chrysler buses.
The only difference between the concepts analysed is the hydrogen production technology. Downstream the production unit the concepts were assumed to be similar, consisting of purification, compression, gas distribution, storage and dispenser.
The production capacity of hydrogen was assumed to be 60 Nm3/hour (similar to the CUTE project (Clean Urban Transport in Europe) stations ref. /5/.
Illustrations of the production concepts are shown in figure 2 a) – 2d). More detailed information can be found in ref. /6/ /7/ /8/ and /9/.