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Anyone know of a reason why they dont use air? or even Nitrogen. EDIT I guess compressing to liquid, CO2 can be stable at <31 deg C at 5ATMs which is what they
by rr888 4y ago
Anyone know of a reason why they dont use air? or even Nitrogen.
EDIT I guess compressing to liquid, CO2 can be stable at <31 deg C at 5ATMs which is what they use. Liquid Nitrogen has to be kept very cold, even under pressure.
- cwp 4y ago> Carbon dioxide is easier to compress and store at ambient temperature and atmospheric pressure compared to other gaseous storage vehicles, like hydrogen or air.
- deleted 4y ago[deleted]
- chomp 4y ago> Carbon dioxide is easier to compress and store at ambient temperature and atmospheric pressure compared to other gaseous storage vehicles, like hydrogen or air. CO2 phase diagram: https://www.wolframalpha.com/input?i=co2+phase+diagram https://www.wolframalpha.com/input?i=co2+phase+diagram Nitrogen phase diagram: https://www.wolframalpha.com/input/?i=nitrogen+phase+diagram https://www.wolframalpha.com/input/?i=nitrogen+phase+diagram You can see that CO2 is way more reasonable to store liquid at ambient temps.
- ncmncm 4y agoA utility-scale project under construction in Chile banks liquid nitrogen and heat. Insulated low-pressure tankage is cheap. It will be interesting which will turn out more practical.