.Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_roundTube

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 .

Interface

function kc_roundTube
  extends Modelica.Icons.Function;
  input Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_roundTube_IN_con IN_con "Input record for function kc_roundTube" annotation(
    Dialog(group = "Constant inputs"));
  input Modelica.Fluid.Dissipation.HeatTransfer.HeatExchanger.kc_roundTube_IN_var IN_var "Input record for function kc_roundTube" annotation(
    Dialog(group = "Variable inputs"));
  output SI.CoefficientOfHeatTransfer kc "Convective heat transfer coefficient" annotation(
    Dialog(group = "Output"));
  output SI.PrandtlNumber Pr "Prandtl number" annotation(
    Dialog(group = "Output"));
  output SI.ReynoldsNumber Re "Reynolds number" annotation(
    Dialog(group = "Output"));
  output SI.NusseltNumber Nu "Nusselt number" annotation(
    Dialog(group = "Output"));
  output Real failureStatus "0== boundary conditions fulfilled | 1== failure >> check if still meaningful results" annotation(
    Dialog(group = "Output"));
end kc_roundTube;

Revisions

2016-04-11 Stefan Wischhusen: Removed singularity for Re at zero mass flow rate.