kc_flatTube
kc_flatTube_KC
kc_flatTube_IN_con
kc_flatTube_IN_var
kc_roundTube
kc_roundTube_KC
kc_roundTube_IN_con
kc_roundTube_IN_var
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 .
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).
| Name | Description |
|---|---|
| kc_flatTube
|
|
| kc_flatTube_KC
|
|
| kc_flatTube_IN_con
|
Input record for function kc_flatTube and kc_flatTube_KC |
| kc_flatTube_IN_var
|
Input record for function kc_flatTube and kc_flatTube_KC |
| kc_roundTube
|
|
| kc_roundTube_KC
|
|
| kc_roundTube_IN_con
|
Input record for function kc_roundTube and kc_roundTube_KC |
| kc_roundTube_IN_var
|
Input record for function kc_roundTube and kc_roundTube_KC |
Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_flatTubeCalculation 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).
| Name | Description |
|---|---|
| Constant inputs | |
| IN_con | Input record for function kc_flatTube |
| Variable inputs | |
| IN_var | Input record for function kc_flatTube |
| Name | Description |
|---|---|
| Output | |
| kc | Convective heat transfer coefficient [W/(m2.K)] |
| Pr | Prandtl number [1] |
| Re | Reynolds number [1] |
| Nu | Nusselt number [1] |
| failureStatus | 0== boundary conditions fulfilled | 1== failure >> check if still meaningful results |
Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_flatTube_KCCalculation 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).
| Name | Description |
|---|---|
| Constant inputs | |
| IN_con | Input record for function kc_flatTube_KC |
| Variable inputs | |
| IN_var | Input record for function kc_flatTube_KC |
| Name | Description |
|---|---|
| kc | Output for function kc_flatTubePlateFin_KC [W/(m2.K)] |
Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_flatTube_IN_conInput record for function kc_flatTube and kc_flatTube_KC
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Heat exchanger | |
| geometry | Choice of fin geometry |
| A_fr | Frontal area [m2] |
| D_h | Hydraulic diameter [m] |
| D_m | Major tube diameter for flat tube [m] |
| F_l | Fin length [m] |
| F_p | Fin pitch, fin spacing + fin thickness [m] |
| L_l | Louver length [m] |
| L_p | Louver pitch [m] |
| T_d | Tube depth [m] |
| T_p | Tube pitch [m] |
| alpha | Lateral fin spacing (s) / free flow height (h) |
| gamma | Fin thickness (t) / lateral fin spacing (s) |
| delta | Fin thickness (t) / Fin length (l) |
| delta_f | Fin thickness [m] |
| Phi | Louver angle [rad] |
Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_flatTube_IN_varInput record for function kc_flatTube and kc_flatTube_KC
Extends from Modelica.Icons.Record (Icon for records), Modelica.Fluid.Dissipation.Utilities.Records.General.FluidProperties (Base record for fluid properties).
| Name | Description |
|---|---|
| Fluid properties | |
| cp | Specific heat capacity of fluid at constant pressure [J/(kg.K)] |
| eta | Dynamic viscosity of fluid [Pa.s] |
| lambda | Thermal conductivity of fluid [W/(m.K)] |
| rho | Density of fluid [kg/m3] |
| Input | |
| m_flow | [kg/s] |
Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_roundTubeCalculation 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).
| Name | Description |
|---|---|
| Constant inputs | |
| IN_con | Input record for function kc_roundTube |
| Variable inputs | |
| IN_var | Input record for function kc_roundTube |
| Name | Description |
|---|---|
| Output | |
| kc | Convective heat transfer coefficient [W/(m2.K)] |
| Pr | Prandtl number [1] |
| Re | Reynolds number [1] |
| Nu | Nusselt number [1] |
| failureStatus | 0== boundary conditions fulfilled | 1== failure >> check if still meaningful results |
Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_roundTube_KCCalculation 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).
| Name | Description |
|---|---|
| Constant inputs | |
| IN_con | Input record for function kc_roundTube_KC |
| Variable inputs | |
| IN_var | Input record for function kc_roundTube_KC |
| Name | Description |
|---|---|
| kc | Output for function kc_roundTube_KC [W/(m2.K)] |
Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_roundTube_IN_conInput record for function kc_roundTube and kc_roundTube_KC
Extends from Modelica.Icons.Record (Icon for records).
| Name | Description |
|---|---|
| Heat exchanger | |
| geometry | Choice of fin geometry |
| A_fr | Frontal area [m2] |
| D_c | Fin collar diameter [m] |
| F_p | Fin pitch, fin spacing + fin thickness [m] |
| L | Heat exchanger length [m] |
| L_h | Louver height [m] |
| L_p | Louver pitch [m] |
| N | Number of tube rows |
| P_d | Pattern depth of wavy fin, wave height [m] |
| P_l | Longitudinal tube pitch [m] |
| P_t | Transverse tube pitch [m] |
| S_h | Slit height [m] |
| S_p | Slit pitch [m] |
| X_f | Half wave length of wavy fin [m] |
| delta_f | Fin thickness [m] |
Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_roundTube_IN_varInput record for function kc_roundTube and kc_roundTube_KC
Extends from Modelica.Icons.Record (Icon for records), Modelica.Fluid.Dissipation.Utilities.Records.General.FluidProperties (Base record for fluid properties).
| Name | Description |
|---|---|
| Fluid properties | |
| cp | Specific heat capacity of fluid at constant pressure [J/(kg.K)] |
| eta | Dynamic viscosity of fluid [Pa.s] |
| lambda | Thermal conductivity of fluid [W/(m.K)] |
| rho | Density of fluid [kg/m3] |
| Input | |
| m_flow | [kg/s] |