modelInjection
Injection circuit with pump and three way valve
Extends from AixLib.Systems.HydraulicModules.BaseClasses.PartialHydraulicModule (Base class for hydraulic module.).
Information
Injection circuit with a replaceable pump model for the distribution of hot or cold water. All sensor and actor values are connected to the hydraulic bus.
Characteristics
When the valve is fully opened, the consumer module is plugged into the primary hydronic circuit whereas when the valve is fully closed, the consumer is isolated from the primary hydronic circuit
This model uses a pipe model to include the heat loss and insulation effects
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Assumptions | |||
| Boolean | allowFlowReversal1 (from PartialFourPort) | true | = false to simplify equations, assuming, but not enforcing, no flow reversal for medium 1 |
| Boolean | allowFlowReversal2 (from PartialFourPort) | true | = false to simplify equations, assuming, but not enforcing, no flow reversal for medium 2 |
| Boolean | allowFlowReversal (from PartialHydraulicModule) | true | = true to allow flow reversal, false restricts to design direction (port_a -> port_b) |
| Parameters | |||
| String | pipeModel (from PartialHydraulicModule) | "SimplePipe" | |
| Pipes | |||
| Modelica.Units.SI.Length | length (from PartialHydraulicModule) | Pipe length of all pipes (can be overwritten in each pipe) | |
| DataBase.Pipes.PipeBaseDataDefinition | parameterPipe (from PartialHydraulicModule) | AixLib.DataBase.Pipes.Copper.Copper_6x1() | Pipe type and diameter (can be overwritten in each pipe) |
| DataBase.Pipes.InsulationBaseDataDefinition | parameterIso (from PartialHydraulicModule) | AixLib.DataBase.Pipes.Insulation.Iso50pc() | Insulation Type (can be overwritten in each pipe) |
| Actuators | |||
| Real | Kv (from PartialHydraulicModule) | Kv value of valve (can be overwritten in the valve) | |
| Fluid.Actuators.Valves.Data.GenericThreeWay | valveCharacteristic | Valve characteristic of three way valve | |
| Nominal condition | |||
| Modelica.Units.SI.MassFlowRate | m_flow_nominal (from PartialHydraulicModule) | Nominal mass flow rate | |
| Initialization | |||
| Modelica.Units.SI.Temperature | T_start (from PartialHydraulicModule) | 303.15 | Initialization temperature |
| Advanced | |||
| Modelica.Units.SI.Time | tau (from PartialHydraulicModule) | 15 | Time Constant for PT1 behavior of temperature sensors |
| Modelica.Units.SI.Temperature | T_amb (from PartialHydraulicModule) | 298.15 | Ambient temperature for heat loss |
| Modelica.Units.SI.Time | tauHeaTra (from PartialHydraulicModule) | parameterPipe.d_i*parameterPipe.d_i/4*1000*4180*(log(parameterPipe.d_i/parameterPipe.d_o)/2/parameterPipe.lambda + log(parameterPipe.d_o/parameterPipe.d_o*(1 + parameterIso.factor))/2/parameterIso.lambda + 1/hCon/parameterPipe.d_o*(1 + parameterIso.factor)) | Time constant for heat transfer of temperature sensors to ambient |
| Modelica.Units.SI.CoefficientOfHeatTransfer | hCon (from PartialHydraulicModule) | 4 | Convection heat transfer coeffient for all pipes |
| Modelica.Units.SI.Volume | vol | 0.0005 | Mixing Volume |
| Dynamics › Equations | |||
| Modelica.Fluid.Types.Dynamics | energyDynamics (from PartialHydraulicModule) | Modelica.Fluid.Types.Dynamics.DynamicFreeInitial | Type of energy balance: dynamic (3 initialization options) or steady state |
| Modelica.Fluid.Types.Dynamics | massDynamics (from PartialHydraulicModule) | Modelica.Fluid.Types.Dynamics.DynamicFreeInitial | Type of mass balance: dynamic (3 initialization options) or steady state |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Fluid.Interfaces.FluidPort_a | port_a1 (from PartialFourPort) | Fluid connector a1 (positive design flow direction is from port_a1 to port_b1) | |
| Modelica.Fluid.Interfaces.FluidPort_b | port_b1 (from PartialFourPort) | Fluid connector b1 (positive design flow direction is from port_a1 to port_b1) | |
| Modelica.Fluid.Interfaces.FluidPort_a | port_a2 (from PartialFourPort) | Fluid connector a2 (positive design flow direction is from port_a2 to port_b2) | |
| Modelica.Fluid.Interfaces.FluidPort_b | port_b2 (from PartialFourPort) | Fluid connector b2 (positive design flow direction is from port_a2 to port_b2) | |
| BaseClasses.HydraulicBus | hydraulicBus (from PartialHydraulicModule) |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Thermal.HeatTransfer.Sources.PrescribedTemperature | prescribedTemperature (from PartialHydraulicModule) | ||
| Modelica.Blocks.Sources.Constant | const (from PartialHydraulicModule) | ||
| Fluid.Actuators.Valves.ThreeWayTable | valve | ||
| Fluid.FixedResistances.GenericPipe | pipe1 | ||
| Fluid.FixedResistances.GenericPipe | pipe2 | ||
| Fluid.FixedResistances.GenericPipe | pipe3 | ||
| Fluid.FixedResistances.GenericPipe | pipe4 | ||
| Fluid.FixedResistances.GenericPipe | pipe5 | ||
| Fluid.FixedResistances.GenericPipe | pipe6 | ||
| Fluid.FixedResistances.GenericPipe | pipe7 | ||
| Fluid.FixedResistances.GenericPipe | pipe8 | ||
| Fluid.FixedResistances.GenericPipe | pipe9 | ||
| Fluid.MixingVolumes.MixingVolume | junc3v6 | ||
| BaseClasses.BasicPumpInterface | PumpInterface | Needs to be redeclared |
Revisions
- December 06, 2022, by EBC-Modelica group:
Fixes to increase compatability to OpenModelica #1378. - August 09, 2018, by Alexander Kümpel:
Extension from base PartioalHydraulicModuls - Mai 30, 2018, by Alexander Kümpel:
Transfer from ZUGABE to AixLib - 2017-07-25 by Peter Matthes:
Renames sensors and introduces PT1 behavior for temperature sensors. Adds sensors to icon. -
March,2016 by Rohit Lad:
Implemented