Anyone seen this? Hydrogen powered bike

[Danidl]

Problem with gas is what happened to me today.
Pulling out on to a main road, I could smell LPG in the air. Sure enough, a gas powered taxi went past.
But how to tell if is leaking, and what do you do?
If a petrol leak, you can see it.
The Police can cordon off the road, Fire Service put down sand and drain the tank etc.

Hydrogen would just float away, . The problem is in how it is stored. The old fashioned steel cylinders will store it at about 500 psi 40 bar and if they ruptured, there would be a rapid release. The newer technique is to store it under 2 bar in a special recipe of materials which chemically absorb the hydrogen. These recipes are proprietary. If the bottle is ruptured the gas will slowly escape from the material. Normally this should not create a hazard however There would be hazards if this happened in an enclosed space, particularly without high level vents e.g the channel tunnel or underground carparks

The value of the hydrogen is that it is pure, if smelly carrier gases were used, these would probably poison the fuel cell.

 

[Danidl]

There was one shown about three years ago that used hydrogen cartridges, but the cartridges werehideously expensive, as you can immagine.

It is the mixture of materials used to adsorb the hydrogen which is costly. Producing the hydrogen is child's play. What is astounding is that the adsorb ed hydrogen bottles can hold more hydrogen at room pressure than can high pressure cylinders at 500psi!