modelNonLinearConvective

Generic non linear convective heat exchange coefficient
Diagram of NonLinearConvective

Extends from BaseClasses.HeatTransfer.Interfaces.Element1D (Partial heat transfer element with two HeatPort connectors that does not store energy).

Information

Hypothesis and equations

Generic correlation of the convective heat exchange coefficient depending on the temperature gap :

hcv = a * dTn + b

Bibliography

See notice TF111 of CLIM2000 for examples from the bibliography.

Instructions for use

none

Known limits / Use precautions

none

Validations

Validated model - EAB 04/2010

--------------------------------------------------------------
Licensed by EDF under a 3-clause BSD-license
Copyright © EDF 2009 - 2023
BuildSysPro version 3.6.0
Author : EDF
--------------------------------------------------------------

Parameters

TypeNameDefaultDescription
RealaMultiplicative factor of the temperature difference
RealnExponent of the exchange law
RealbAdditional term of the exchange law
Modelica.Units.SI.AreaSExchange surface

Connectors

TypeNameDefaultDescription
HeatPort_aport_a (from Element1D)
HeatPort_bport_b (from Element1D)

Components

TypeNameDefaultDescription
Modelica.Units.SI.HeatFlowRateQ_flow (from Element1D)Heat flow rate from port_a -> port_b
Modelica.Units.SI.TemperatureDifferencedT (from Element1D)port_a.T - port_b.T

Revisions

Hassan Bouia 02/2013 : Modification de dt en abs(dT).

Amy Lindsay 11/2014 : mise en place d'un noEvent pour que le abs ne génère pas d'erreur lorsque dT est très petit (proche de 0)