lng, cng and lpg systems are subject to very regular and thorough inspections and leakage checks. filling up is really not difficult, if you are not a complete dumbass. don't talk about the theoretical problems if you have zero real life experience with that one.
can we skip that topic now ?
It is inherently more dangerous because it is under pressure. No matter what you say to the contrary, the fact that all these systems have to be frequently inspected, and that you have to have training to operate the filling station
by definition proves that point.
You just stated the point I'm making:
The average motorist IS a complete dumbass; or at least enough of them that you don't dare allow any fueling station be operated unattended. Imagine the corner gas station in the US with a safety-trained attendant for every fuel pump. The notion is ludicrous. ![Banging Head |O](https://www.eevblog.com/forum/Smileys/default/bangheadonwall.gif.pagespeed.ce.8iLbFYV4Bc.gif)
I do have real-life experience with more than one kind of pressurized fuel. I have worked in a bus garage where they ran CNG and LPG, and actually know the LPG hardware pretty well. I have have done several LPG conversions, and I took the training to operate their backfill LPG filling station. I also know the difference between high-pressure, low-pressure and non-pressurized fuels.
I have also worked the cascade systems filling air tanks for our Scott packs at the Fire Dept; these operated at 4500PSIG, but newer systems operate at 5,500 PSIG to give the firefighter a few more minutes air. We also had Dräger rebreather packs, but those tanks were managed by an outside vendor. I was, however, trained and certified to service and maintain the Scott SCBA system while I was at the Dept.
Working steel, I have handled high-pressure 0
2 and low-pressure acetylene on a daily basis. I have seen first-hand the amount of energy
just the pressures involved can deliver: An 0
2 K tank knocked over in my high-school metal shop by a vendor operating a forklift hit just right to snap the valve off; the pressure in that tank was enough to propel it through a sand-casting pit, across the shop and embed itself 6 inches into a concrete wall. Old man Kirsch made sure
every student got to see the damage as a warning before they cleaned up the mess.
CNG tanks operate at ~3600PSIG; almost twice that of a welding O
2 tank.
And the fuel is highly volatile. LPG is dangerous enough; it is low-pressure, just enough to keep it in a liquid state, but CNG is exponentially more dangerous because of the pressures involved.
I certainly don't trust the average motorist to safely handle either.I spent my time searching for "the better fuel" to make ICEs safe for people and safe for the future.
There isn't one.Seriously... the way you talk about it,
you simply have not got appropriate respect for just how dangerous this stuff is, and the bottom line is
it's all still fossil fuel, and is still burning stuff to make our energy, so it cannot be sustained.mnem
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