Comment by cogman10
5 months ago
I think the biggest issue is perhaps the danger aspect of it. You are making wild pressure swings on some critical storage structures with some pretty wild temp swings. Making sure that doesn't ultimately destroy the CO2 canister or collapse the CO2 dome will be a challenge.
It also has to be pretty big, which doesn't matter too much other than a critical failure would be more impressive.
They say no leaks, but I'm sure there will be SOME CO2 leakage. Hard to make something like this with gases that doesn't leak at least a little. You could offset that with some CO2 capture via atmospheric distillation.
The storage of CO2 as a liquid means less pressure then a high pressure gas.
To store CO2 as a liquid you either need to chill it or you need to increase the pressure until it becomes a liquid. It takes around 75psi to turn CO2 into a liquid at room temperature.
75 psi seems very low. Numbers I'm seeing online say more like 800-900 PSI.
2 replies →