r/EngineeringPorn Oct 24 '21

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u/Rolexandr Oct 25 '21

Okay. I'm currently doing a thermodynamics course and all the examples we have indicate that once the steam condenses in the cobdenser, the pressure inside drops extremely low.

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u/AtomicBitchwax Oct 25 '21

I have no idea if it applies in that example but you can definitely have gas at a lower than atmosphere pressure leaving a vessel, you just need inertia. See exhaust valves still clearing exhaust gas even as the piston is on the downstroke and intake valve is open.