4 ms·
If you are dealing with liquid nitrogen from air, then you are probably also dealing with liquid oxygen in the mix. I imaging that at power-storage scales the
by sandworm101 2y ago
If you are dealing with liquid nitrogen from air, then you are probably also dealing with liquid oxygen in the mix. I imaging that at power-storage scales the presence of such amounts of liquid oxygen might create safety issues. Separating it out might nullify any energy storage advantages.
- 0cf8612b2e1e 2y agoYou could embed the chiller in a nitrogen only environment. I am imagining a closed loop system where you are cooling/using the nitrogen on a daily basis.
- nullc 2y agoIt's not all that energetically disfavorable to extract oxygen if you're already compressing the gas. There is a lot of demand for concentrated oxygen too, so one could manufacture it as a side product instead of storing it. As far as 'closed loop' sadly that does break the economics, I think-- part of the reason why cryogenic nitrogen storage is interesting is because the nitrogen expands 800 fold at atmospheric pressure, so the container for the decompressed nitrogen would be gigantic.
- voakbasda 2y agoI would wager that the regulations governing LO2 generation facilities preclude pursuing that as a side product. I imagine lots of red tape, either already in place or coming soon -- right after someone blows up their neighborhood trying.
- yetihehe 2y agoOr you can use that liquid oxygen to precool your input, saving some energy over just venting it.