Martin Williams
Active Member
Only an idiot would throw away the opportunity to use only the lowest pressure necessary to do the job. You can depend upon it that the first thing a hydrogen molecule passes through on leaving the tank is a pressure reducing valve. I would guess that the bulk of the plumbing is running at a bar or two. There is no reason to run at 700 bar, and every reason not to.
Running at low pressure means that any leakage is greatly reduced and with it the cracking that worries you so much. I think you imagine valves and pipes turning to dust at the first whiff of hydrogen. In fact you can design for slow loss of structural integrity. The main effect of these cracks is that there will be a growing leakage of hydrogen, but even this is negligibly small.
Another point is that at low pressure, plastic valves become feasible, eliminating the damage to metal entirely.
You seem to be so obsessed with 'proving' it is all impossible that you have failed to notice that hydrogen fuelled cars are being sold and used, the gas is produced by the millions of tons world-wide and transported around and is widely used in fork-lift trucks and other vehicles.
Clearly, the problems you claim are insuperable, have all been overcome. Events in the real world are revealing this thread to be the nonsense it always was.
Running at low pressure means that any leakage is greatly reduced and with it the cracking that worries you so much. I think you imagine valves and pipes turning to dust at the first whiff of hydrogen. In fact you can design for slow loss of structural integrity. The main effect of these cracks is that there will be a growing leakage of hydrogen, but even this is negligibly small.
Another point is that at low pressure, plastic valves become feasible, eliminating the damage to metal entirely.
You seem to be so obsessed with 'proving' it is all impossible that you have failed to notice that hydrogen fuelled cars are being sold and used, the gas is produced by the millions of tons world-wide and transported around and is widely used in fork-lift trucks and other vehicles.
Clearly, the problems you claim are insuperable, have all been overcome. Events in the real world are revealing this thread to be the nonsense it always was.