Package Modelica.​Fluid.​Dissipation.​HeatTransfer.​HeatExchanger
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Information

Heat exchanger

Flat tube heat exchanger

Calculation of the mean convective heat transfer coefficient kc for the air-side heat transfer of heat exchangers with flat tubes and several fin geometries. See more information .

Round tube heat exchanger

Calculation of the mean convective heat transfer coefficient kc for the air-side heat transfer of heat exchangers with round tubes and several fin geometries. See more information .

Extends from Modelica.​Icons.​VariantsPackage (Icon for package containing variants).

Package Contents

NameDescription
kc_flatTube 
kc_flatTube_IN_conInput record for function kc_flatTube and kc_flatTube_KC
kc_flatTube_IN_varInput record for function kc_flatTube and kc_flatTube_KC
kc_flatTube_KC 
kc_roundTube 
kc_roundTube_IN_conInput record for function kc_roundTube and kc_roundTube_KC
kc_roundTube_IN_varInput record for function kc_roundTube and kc_roundTube_KC
kc_roundTube_KC 

Function Modelica.​Fluid.​Dissipation.​HeatTransfer.​HeatExchanger.​kc_flatTube
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Information

Calculation of the mean convective heat transfer coefficient kc for the air-side heat transfer of heat exchangers with flat tubes and several fin geometries. Note that additionally a failure status is observed in this function to check if the intended boundary conditions are fulfilled. See more information .

Extends from Modelica.​Icons.​Function (Icon for functions).

Inputs

TypeNameDescription
kc_flatTube_IN_conIN_conInput record for function kc_flatTube
kc_flatTube_IN_varIN_varInput record for function kc_flatTube

Outputs

TypeNameDescription
CoefficientOfHeatTransferkcConvective heat transfer coefficient
PrandtlNumberPrPrandtl number
ReynoldsNumberReReynolds number
NusseltNumberNuNusselt number
RealfailureStatus0== boundary conditions fulfilled | 1== failure >> check if still meaningful results

Function Modelica.​Fluid.​Dissipation.​HeatTransfer.​HeatExchanger.​kc_flatTube_KC
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Information

Calculation of the mean convective heat transfer coefficient kc for the air-side heat transfer of heat exchangers with flat tubes and several fin geometries. See more information .

Extends from Modelica.​Icons.​Function (Icon for functions).

Inputs

TypeNameDescription
kc_flatTube_IN_conIN_conInput record for function kc_flatTube_KC
kc_flatTube_IN_varIN_varInput record for function kc_flatTube_KC

Outputs

TypeNameDescription
CoefficientOfHeatTransferkcOutput for function kc_flatTubePlateFin_KC

Record Modelica.​Fluid.​Dissipation.​HeatTransfer.​HeatExchanger.​kc_flatTube_IN_con
Input record for function kc_flatTube and kc_flatTube_KC

Information

This record is used as input record for the heat transfer function kc_flatTube and kc_flatTube_KC.

Extends from Modelica.​Icons.​Record (Icon for records).

Fields

TypeNameDescription
HTXGeometry_flatTubesgeometryChoice of fin geometry
AreaA_frFrontal area
LengthD_hHydraulic diameter
LengthD_mMajor tube diameter for flat tube
LengthF_lFin length
LengthF_pFin pitch, fin spacing + fin thickness
LengthL_lLouver length
LengthL_pLouver pitch
LengthT_dTube depth
LengthT_pTube pitch
RealalphaLateral fin spacing (s) / free flow height (h)
RealgammaFin thickness (t) / lateral fin spacing (s)
RealdeltaFin thickness (t) / Fin length (l)
Lengthdelta_fFin thickness
AnglePhiLouver angle

Record Modelica.​Fluid.​Dissipation.​HeatTransfer.​HeatExchanger.​kc_flatTube_IN_var
Input record for function kc_flatTube and kc_flatTube_KC

Information

This record is used as input record for the heat transfer function kc_flatTube and kc_flatTube_KC.

Extends from Modelica.​Icons.​Record (Icon for records) and Modelica.​Fluid.​Dissipation.​Utilities.​Records.​General.​FluidProperties (Base record for fluid properties).

Fields

TypeNameDescription
SpecificHeatCapacityAtConstantPressurecpSpecific heat capacity of fluid at constant pressure
DynamicViscosityetaDynamic viscosity of fluid
ThermalConductivitylambdaThermal conductivity of fluid
DensityrhoDensity of fluid
MassFlowRatem_flow 

Function Modelica.​Fluid.​Dissipation.​HeatTransfer.​HeatExchanger.​kc_roundTube
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Information

Calculation of the mean convective heat transfer coefficient kc for the air-side heat transfer of heat exchangers with round tubes and several fin geometries. Note that additionally a failure status is observed in this function to check if the intended boundary conditions are fulfilled. See more information .

Extends from Modelica.​Icons.​Function (Icon for functions).

Inputs

TypeNameDescription
kc_roundTube_IN_conIN_conInput record for function kc_roundTube
kc_roundTube_IN_varIN_varInput record for function kc_roundTube

Outputs

TypeNameDescription
CoefficientOfHeatTransferkcConvective heat transfer coefficient
PrandtlNumberPrPrandtl number
ReynoldsNumberReReynolds number
NusseltNumberNuNusselt number
RealfailureStatus0== boundary conditions fulfilled | 1== failure >> check if still meaningful results

Function Modelica.​Fluid.​Dissipation.​HeatTransfer.​HeatExchanger.​kc_roundTube_KC
Icon for functions

Information

Calculation of the mean convective heat transfer coefficient kc for the air-side heat transfer of heat exchangers with round tubes and several fin geometries.See more information .

Extends from Modelica.​Icons.​Function (Icon for functions).

Inputs

TypeNameDescription
kc_roundTube_IN_conIN_conInput record for function kc_roundTube_KC
kc_roundTube_IN_varIN_varInput record for function kc_roundTube_KC

Outputs

TypeNameDescription
CoefficientOfHeatTransferkcOutput for function kc_roundTube_KC

Record Modelica.​Fluid.​Dissipation.​HeatTransfer.​HeatExchanger.​kc_roundTube_IN_con
Input record for function kc_roundTube and kc_roundTube_KC

Information

This record is used as input record for the heat transfer function kc_roundTube and kc_roundTube_KC.

Extends from Modelica.​Icons.​Record (Icon for records).

Fields

TypeNameDescription
HTXGeometry_roundTubesgeometryChoice of fin geometry
AreaA_frFrontal area
LengthD_cFin collar diameter
LengthF_pFin pitch, fin spacing + fin thickness
LengthLHeat exchanger length
LengthL_hLouver height
LengthL_pLouver pitch
IntegerNNumber of tube rows
LengthP_dPattern depth of wavy fin, wave height
LengthP_lLongitudinal tube pitch
LengthP_tTransverse tube pitch
LengthS_hSlit height
LengthS_pSlit pitch
LengthX_fHalf wave length of wavy fin
Lengthdelta_fFin thickness

Record Modelica.​Fluid.​Dissipation.​HeatTransfer.​HeatExchanger.​kc_roundTube_IN_var
Input record for function kc_roundTube and kc_roundTube_KC

Information

This record is used as input record for the heat transfer function kc_roundTube and kc_roundTube_KC.

Extends from Modelica.​Icons.​Record (Icon for records) and Modelica.​Fluid.​Dissipation.​Utilities.​Records.​General.​FluidProperties (Base record for fluid properties).

Fields

TypeNameDescription
SpecificHeatCapacityAtConstantPressurecpSpecific heat capacity of fluid at constant pressure
DynamicViscosityetaDynamic viscosity of fluid
ThermalConductivitylambdaThermal conductivity of fluid
DensityrhoDensity of fluid
MassFlowRatem_flow 

Generated 2018-12-12 12:13:29 EST by MapleSim.