modelConnection2PipeLossless

Model of a lossless connection to a collector/distributor

Extends from Buildings.DHC.Networks.BaseClasses.PartialConnection2Pipe (Partial model for connecting an agent to a two-pipe distribution network).

Information

This is a model of a connection for a two-pipe system using a pipe model with no flow resistance, no heat loss and no transport delay.

Type	Name	Default	Description
Boolean	show_entFlo (from PartialConnection2Pipe)	false	Set to true to output enthalpy flow rate difference
General › Nominal condition
Modelica.Units.SI.MassFlowRate	mDis_flow_nominal (from PartialConnection2Pipe2Medium)		Nominal mass flow rate in the distribution line
Modelica.Units.SI.MassFlowRate	mCon_flow_nominal (from PartialConnection2Pipe2Medium)		Nominal mass flow rate in the connection line
Assumptions
Boolean	allowFlowReversal (from PartialConnection2Pipe2Medium)	false	= true to allow flow reversal, false restricts to design direction (port_a -> port_b)
Dynamics › Equations
Modelica.Fluid.Types.Dynamics	energyDynamics (from PartialConnection2Pipe2Medium)	Modelica.Fluid.Types.Dynamics.FixedInitial	Type of energy balance: dynamic (3 initialization options) or steady state
Dynamics › Nominal condition
Modelica.Units.SI.Time	tau (from PartialConnection2Pipe2Medium)	10	Time constant at nominal flow for dynamic energy and momentum balance

Type	Name	Description
Modelica.Fluid.Interfaces.FluidPort_a	port_aDisSup (from PartialConnection2Pipe2Medium)	Distribution supply inlet port
Modelica.Fluid.Interfaces.FluidPort_b	port_bDisSup (from PartialConnection2Pipe2Medium)	Distribution supply outlet port
Modelica.Fluid.Interfaces.FluidPort_a	port_aDisRet (from PartialConnection2Pipe2Medium)	Distribution return inlet port
Modelica.Fluid.Interfaces.FluidPort_b	port_bDisRet (from PartialConnection2Pipe2Medium)	Distribution return outlet port
Modelica.Fluid.Interfaces.FluidPort_b	port_bCon (from PartialConnection2Pipe2Medium)	Connection supply port
Modelica.Fluid.Interfaces.FluidPort_a	port_aCon (from PartialConnection2Pipe2Medium)	Connection return port
Buildings.Controls.OBC.CDL.Interfaces.RealOutput	mCon_flow (from PartialConnection2Pipe)	Connection supply mass flow rate
Buildings.Controls.OBC.CDL.Interfaces.RealOutput	dp (from PartialConnection2Pipe)	Pressure drop accross the connection (measured)
Buildings.Controls.OBC.CDL.Interfaces.RealOutput	dH_flow (from PartialConnection2Pipe)	Difference in enthalpy flow rate between connection supply and return

Type	Name	Description
Model_pipDisSup	pipDisSup (from PartialConnection2Pipe2Medium)	Distribution supply pipe
Model_pipDisRet	pipDisRet (from PartialConnection2Pipe2Medium)	Distribution return pipe
Buildings.Fluid.FixedResistances.Junction	junConSup (from PartialConnection2Pipe2Medium)	Junction with connection supply
Buildings.Fluid.FixedResistances.Junction	junConRet (from PartialConnection2Pipe2Medium)	Junction with connection return
Model_pipCon	pipCon (from PartialConnection2Pipe)	Connection pipe
Buildings.Fluid.Sensors.MassFlowRate	senMasFloCon (from PartialConnection2Pipe)	Connection supply mass flow rate (measured)
Fluid.Sensors.RelativePressure	senRelPre (from PartialConnection2Pipe)	Relative pressure sensor
DifferenceEnthalpyFlowRate	senDifEntFlo (from PartialConnection2Pipe)	Difference in enthalpy flow rate