modelLumpedStraightPipe
Lumped straight pipe (circular duct)
Information
Copyright © EDF 2002 - 2019
ThermoSysPro Version 3.2
This component model is documented in Sect. 13.5 of the ThermoSysPro book.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Length | L | 10. | Pipe length |
| Modelica.Units.SI.Diameter | D | 0.2 | Pipe internal diameter |
| Integer | ntubes | 1 | Number of pipes in parallel |
| Real | lambda | 0.03 | Friction pressure loss coefficient (active if lambda_fixed=true) |
| Real | rugosrel | 0.0001 | Pipe roughness (active if lambda_fixed=false) |
| Modelica.Units.SI.Position | z1 | 0 | Inlet altitude |
| Modelica.Units.SI.Position | z2 | 0 | Outlet altitude |
| Boolean | lambda_fixed | true | true: lambda given by parameter - false: lambde computed using Idel'Cik correlation |
| Boolean | inertia | false | true: momentum balance equation with inertia - false: without inertia |
| Boolean | continuous_flow_reversal | false | true: continuous flow reversal - false: discontinuous flow reversal |
| Integer | fluid | 1 | 1: water/steam - 2: C3H3F5 |
| Modelica.Units.SI.Density | p_rho | 0 | If > 0, fixed fluid density |
| Integer | mode | 0 | IF97 region. 1:liquid - 2:steam - 4:saturation line - 0:automatic |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| ThermoSysPro.WaterSteam.Connectors.FluidInlet | C1 | ||
| ThermoSysPro.WaterSteam.Connectors.FluidOutlet | C2 |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Real | khi | Hydraulic pressure loss coefficient | |
| ThermoSysPro.Units.SI.PressureDifference | deltaPf | Friction pressure loss | |
| ThermoSysPro.Units.SI.PressureDifference | deltaP | Total pressure loss | |
| Modelica.Units.SI.MassFlowRate | Q | Mass flow rate | |
| Modelica.Units.SI.ReynoldsNumber | Re | Reynolds number | |
| Modelica.Units.SI.ReynoldsNumber | Relim | Limit Reynolds number | |
| Real | lam | Friction pressure loss coefficient | |
| Modelica.Units.SI.Density | rho | Fluid density | |
| Modelica.Units.SI.DynamicViscosity | mu | Fluid dynamic viscosity | |
| Modelica.Units.SI.Temperature | T | Fluid temperature | |
| Modelica.Units.SI.AbsolutePressure | Pm | Fluid average pressure | |
| Modelica.Units.SI.SpecificEnthalpy | h | Fluid specific enthalpy |
Revisions
Authors
- Daniel Bouskela
- Baligh El Hefni