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Liquid Leak Vapor Leak Cont Depress (Area) Cont Depress (DP)
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Liquid Pressure Drop
Gas Pressure Drop
Alternate Core Cooling

Vapor Blowdown Through a Known Flow Area

Applicable to pipe breaks, tank ruptures,tube ruptures, valve leaks etc.
Upstream Pressure (psia):
Downstream Pressure (psia):
Vapor Quality:
*Flow Area (sqft):
*Diameter (in):
* Enter only one value.
**Critical Pressure Ratio:
**Critical Mass Flux:
Critical Mass Flux Help
The flow is Choked
** If the Quality is less than 1.0, the Critical Pressure
Ratio and the Critical Mass Flux must be entered
Worksheet A and B
Pressure Ratio:0.013
Mass Flux:1816.8lbm/sec/sqft
Mass Flow Rate:2521.6573lbm/sec
Volumetric Flow Rate STP:    18155.9328gpm
Upstream Conditions
Specific Volume:0.40058cuft/lbm
Enthalpy:1189.06BTU/lbm
Temperature:    556.28Deg F
Entropy:    1.38BTU/lbm/F
Downstream Conditions Not Available