Changeset 828

Timestamp:

Aug 13, 2009, 4:03:22 PM (13 years ago)

Author:

mamuller

Message:

model TankL: Added the static head contribution to the OutletLiquid? pressure.

File:

• branches/gui/eml/stage_separators/tank.mso (modified) (3 diffs)

branches/gui/eml/stage_separators/tank.mso

@@ -311 +311 @@
 
         pi                      as positive             (Brief="Pi value", Default=3.141593,Hidden=true, Symbol="\pi");
+        g                               as acceleration         (Brief="Gravity Acceleration",Default=9.81,Hidden=true);
         
         Orientation     as Switcher     (Valid=["vertical","horizontal"],Default="vertical");
@@ -349 +350 @@
         Across          as area                 (Brief="Vessel cylinder shell Cross section area", Hidden=true, Symbol="A_{cross}");
 
+        Pstatic         as pressure             (Brief="Static head at the bottom of the tank", Protected = true, Symbol="P_{static}^{Liquid}");
+
 out     TI as control_signal    (Brief="Temperature Indicator", PosX=0.525, PosY=0, Protected=true);
 out     PI as control_signal    (Brief="Pressure Indicator", PosX=0.368, PosY=0, Protected=true);
@@ -463 +466 @@
         E = sum(TotalHoldup)*OutletLiquid.h;
 
+"Static Head"   
+        Pstatic = PP.LiquidDensity(OutletLiquid.T, Inlet.P, OutletLiquid.z) * g * Level;
+
 "Mechanical Equilibrium"
-        Inlet.P = OutletLiquid.P;
+        Inlet.P + Pstatic = OutletLiquid.P;
 
 "Liquid Volume"