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Pressure Studies 1.6 Tank A B C&D

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Please see full description in attached document.

Phase 1
Initially Valves A, B, and E are closed.
Tank A and B are separated and each sealed from the atmosphere.
Tank A initially has 3' of air @ 40 psi
Tank C and Tank B initially contain air @ 32.476 psi
Pipe K is 12" id; initial air pressure is 32.476 psi

Phase 2
Valves A, B and E are opened.

**Combined pressures allow Tank C to fill with water pushing all Air into Tube B
Valves A, B and E are closed.
**As a conclusion, the final height of the water column after filling the tank C will get lower by approximately 0.076 m.
**It follows that the final pressure of the air above the water in the tank A will be: 2.529 bar

**The final height of the air room will be .99m

Phase 3
Tank D (with Unlimited depth and width) surrounds Tank A and B with water. During Phase 1 and phase 2 , Valve C is closed.
Valve C is opened.

PROBLEM:
How does the air and water change in Tank A?

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Solution Summary

The initial valves separated for each sealed atmosphere is examined

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Please see attachment.

Phase 1

Initially Valves A, B, and E are closed.
Tank A and B are separated and each sealed from the atmosphere.
Tank A initially has 3' of air @ 40 psi
Tank C and Tank B initially contain air @ 32.476 psi
Pipe K is 12" id; initial air pressure is 32.476 psi

Phase 2

Valves A, B and E are opened.
**Combined pressures allow Tank C to fill with water pushing all Air into Tube B
Valves A, B and E are closed.
**As a conclusion, the final height of the water column after filling the tank C will get lower by approx. 0.076 m.
**It follows that the final pressure of the air above the water in the tank A will be: 2.529 bar
**The final height of the air room will be ...

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