Can someone please help me understand absolute pressure and vacuums properly?
Consider this scenario, a diving bell pressurised to 9 Bar sitting in atmospheric pressure i.e. 1 Bar (Correct?) The pressure gradient here is +8 Bar inside the diving bell. In the event of a door becoming rapidly unsealed, it has catastrophic consequences.
Consider a similar scenario, a diving bell is pressurised to 1 Bar in a vacuum of space environment (0 Bar?). The pressure gradient here is +1 Bar inside the diving bell. In the event of a door becoming rapidly unsealed, the consequences are less catastrophic.
QUESTION: Is this correct or is there some weird nonsense that happens when you include a vacuum pressure?
Consider this scenario, a diving bell pressurised to 9 Bar sitting in atmospheric pressure i.e. 1 Bar (Correct?) The pressure gradient here is +8 Bar inside the diving bell. In the event of a door becoming rapidly unsealed, it has catastrophic consequences.
Consider a similar scenario, a diving bell is pressurised to 1 Bar in a vacuum of space environment (0 Bar?). The pressure gradient here is +1 Bar inside the diving bell. In the event of a door becoming rapidly unsealed, the consequences are less catastrophic.
QUESTION: Is this correct or is there some weird nonsense that happens when you include a vacuum pressure?
