Air at 20°C and 7 bar is contained in a rigid tank of 0.57 m3 volume capacity. The tank is provided with a valve that opens at a pressure of 8.5 bar and remains open until the pressure drops to 8.15 bar. Determine: (a) Air temperature just before the valve opens (b) Mass of air lost due to fire.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Air at 20°C and 7 bar is contained in a rigid tank of 0.57 m3 volume capacity. The tank is provided with a valve that opens at a pressure of 8.5 bar and remains open until the pressure drops to 8.15 bar.

Determine:

(a) Air temperature just before the valve opens

(b) Mass of air lost due to fire.

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