kc_roundTube

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

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 .

Syntax

(kc, Pr, Re, Nu, failureStatus) = kc_roundTube(IN_con, IN_var)

Inputs (2)

IN_con

Type: kc_roundTube_IN_con

Description: Input record for function kc_roundTube

IN_var

Type: kc_roundTube_IN_var

Description: Input record for function kc_roundTube

Outputs (5)

kc

Type: CoefficientOfHeatTransfer (W/(m²·K))

Description: Convective heat transfer coefficient

Pr

Type: PrandtlNumber

Description: Prandtl number

Re

Type: ReynoldsNumber

Description: Reynolds number

Nu

Type: NusseltNumber

Description: Nusselt number

failureStatus

Type: Real

Description: 0== boundary conditions fulfilled | 1== failure >> check if still meaningful results