Boiler house Heat recovery systems
2
Trap pressure
Flash pressure % Flash
Condensate load
Mass flash
=
X
Total flash steam
=
X
=
X
Velocity factor
* Velocity
Choose on < 3 m / s
= = = = =
67 138 243 385 560
5.6 m/s 2.7 m/s 1.6 m/s 1.0 m/s 0.7 m/s
FV6 FV8
Total flash steam
LP factor
Total volume
÷
FV12 FV15 FV18
kg / h X
=
m3 / h
2.8 21
* Note: Size on a take-off velocity of 3 m /s or less.
AI-P404-12 AB Issue 3
Page 5 of 5
Sizing A Flash Vessel On Up To Three Trap Pressures
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