Transient Pressure Rise on Valve Closing - CAESAR II - Help

CAESAR II Users Guide

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English
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CAESAR II
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CAESAR II Version
12

Specifies the estimated magnitude of the positive pressure wave that is superimposed on the line pressure when the relief device slams shut. This positive pressure wave moves back through the relief system piping similar to the pressure wave in the supply side piping of a water hammer type system. The magnitude of this wave is estimated from: r*c*dv where r is the fluid density, c is the speed of sound in the fluid and dv is the change in the velocity of the fluid.