modelkc_flatTube_KC
Verification of function kc_flatTube_KC
Extends from Modelica.Icons.Example (Icon for runnable examples).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | n | 2 | Number of various fin geometries |
| SI.Area | A_fr | 1 | Frontal area |
| SI.Length | D_m_1 | 0.005 | Major tube diameter for flat tube |
| SI.Length | F_l_1 | 0.019 | Fin length |
| SI.Length | F_p_1 | 0.0018 | Fin pitch, fin spacing + fin thickness |
| SI.Length | L_l_1 | 0.01607 | Louver length |
| SI.Length | L_p_1 | 0.001534 | Louver pitch |
| SI.Length | T_d_1 | 0.026 | Tube depth |
| SI.Length | T_p_1 | 0.0197 | Tube pitch |
| SI.Length | delta_f_1 | 0.0001 | fin thickness |
| SI.Angle | Phi_1 | 28*Modelica.Constants.pi/180 | louver angle |
| SI.Length | D_h_2 | 0.002383 | Hydraulic diameter |
| SI.Length | D_m_2 | 0.002 | Major tube diameter for flat tube |
| Real | alpha_2 | 0.244 | Lateral fin spacing (s) / free flow height (h) |
| Real | gamma_2 | 0.067 | Fin thickness (t) / lateral fin spacing (s) |
| Real | delta_2 | 0.032 | Fin thickness (t) / Fin length (l) |
| SI.SpecificHeatCapacityAtConstantPressure | cp | 1007 | Specific heat capacity at constant pressure of fluid |
| SI.DynamicViscosity | eta | 18.24e-6 | Dynamic viscosity of fluid |
| SI.ThermalConductivity | lambda | 25.69e-3 | Thermal conductivity of fluid |
| SI.Density | rho | 1.188 | Density of fluid |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Length | h_2 | D_h_2*(1 + alpha_2)/(2*alpha_2) | Free flow height |
| SI.Length | l_2 | t_2/delta_2 | Fin length |
| SI.Length | s_2 | h_2*alpha_2 | Lateral fin spacing (free flow width) |
| SI.Length | t_2 | s_2*gamma_2 | Fin thickness |
| SI.NusseltNumber | Nu | input_Nu.y | |
| SI.MassFlowRate[n] | m_flow | ||
| SI.CoefficientOfHeatTransfer | kc_1 | Nu*lambda/L_p_1 | |
| SI.CoefficientOfHeatTransfer | kc_2 | Nu*lambda/D_h_2 | |
| Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_flatTube_IN_con | m_flow_IN_con_1 | ||
| Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_flatTube_IN_var | m_flow_IN_var_1 | ||
| Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_flatTube_IN_con | m_flow_IN_con_2 | ||
| Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_flatTube_IN_var | m_flow_IN_var_2 | ||
| SI.ReynoldsNumber | Re_1 | abs(m_flow[1])*L_p_1/(eta*A_fr*((F_l_1 - delta_f_1)*(F_p_1 - delta_f_1)/((F_l_1 + D_m_1)*F_p_1))) | |
| SI.ReynoldsNumber | Re_2 | abs(m_flow[2])*D_h_2/(eta*A_fr*(h_2*s_2/((h_2 + t_2 + D_m_2)*(s_2 + t_2)))) | |
| Modelica.Blocks.Sources.Ramp | input_Nu |