Timeline for What's the specific impulse of a human farts/urination?
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| Feb 6, 2017 at 21:29 | comment | added | Puffin | See my point in the last paragraph about the thrust level. The thrust level will come from the diameter of the exit plane and the storage pressure allows the system to supply gas through the whole exit plane for the manoeuvre length. On the other hand the gas pressure doesn't so much affect the exhaust velocity as its temperature. | |
| Feb 6, 2017 at 20:39 | comment | added | asdfex | May I point out that cold gas thrusters typically operate at high pressure (e.g. 100 bar), which would cause a slight inconvenience for the pressure tank or, in layman terms, "the astronaut"? Exhaling into a vacuum produces 1 bar of pressure difference, but not much more. | |
| Feb 6, 2017 at 12:31 | history | answered | Puffin | CC BY-SA 3.0 |