3 ms·
> The article doesn't state why they are using helium FTA: Because helium remains a gas until -200 C, we can achieve higher temperatures inside our heat pump c
by Someone 4y ago
> The article doesn't state why they are using helium
FTA: Because helium remains a gas until -200 C, we can achieve higher temperatures inside our heat pump core
N₂ boils at −195.8 °C, but that will be higher at 30 bar.
- jabl 4y agoA quick look at a phase diagram I found online suggests the boiling point would be somewhere close to -160C at 30bar. Hard to see how that would be a problem in this application.