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What's the oxygen content and pressure of the capsule? The pure oxygen environment at 16 psi of Apollo 1 meant that the fire was over in seconds, and that near
by chiph 11y ago
What's the oxygen content and pressure of the capsule?
The pure oxygen environment at 16 psi of Apollo 1 meant that the fire was over in seconds, and that nearly everything burned.
https://en.wikipedia.org/wiki/Apollo_1 https://en.wikipedia.org/wiki/Apollo_1
- Trisell 11y agoYes, but that fire still happened in earth gravity. They main statement says they are interested in a large scale zero gravity fire. Fire has been shown to burn differently without gravity. Take a look at how a candle burns in space compared to in your home.
- oddeyed 11y agoISS atmosphere tries to be similar to earth's - 101kPa, about 20% O2. https://en.wikipedia.org/wiki/ISS_ECLSS https://en.wikipedia.org/wiki/ISS_ECLSS
- david-given 11y agoThat's only a partial pressure of 20 kPa of oxygen. The Apollo capsule was supposed to be 20 kPa of pure oxygen, so providing the same partial pressure, but because they were on the ground they couldn't do that or the spacecraft would be crushed by exterior atmospheric pressure (<tangent> https://www.youtube.com/watch?v=O4RLOo6bchU https://www.youtube.com/watch?v=O4RLOo6bchU </tangent>). So instead they pressurised it to one atmosphere. Of pure oxygen, thus providing a partial pressure of 110 kPa of oxygen...