modelHeatToStar

Adaptor for approximative longwave radiation exchange

Extends from AixLib.Obsolete.BaseClasses.ObsoleteModel.

Information

Overview

The TwoStar_RadEx model cobines the HeatPort and the Star connector. To model longwave radiation exchange of a surfaces, just connect the HeatPort to the outmost layer of the surface and connect the Star connector to the Star connectors of an unlimited number of corresponding surfaces.

Concept

Since exact calculation of longwave radiation exchange inside a room demands for the computation of view factors, it may be very complex to achieve for non-rectangular room layouts. Therefore, an approximated calculation of radiation exchange basing on the proportions of the affected surfaces is an alternative. The underlying concept of this approach is known as the "two star" room model.

  • February 16, 2018  by Philipp Mehrfeld:
    Introduce max(T,100) to prevent negative solutions for the temperature
  • Mai 19, 2014  by Ana Constantin:
    Uses components from MSL and respects the naming conventions
  • April 01, 2014 by Moritz Lauster:
    Moved and Renamed
  • April 10, 2013  by Ole Odendahl:
    Formatted documentation appropriately
  • June 16, 2006  by Timo Haase:
    Implemented.

Parameters

TypeNameDefaultDescription
Modelica.Units.SI.AreaAArea of radiation exchange
Modelica.Units.SI.Emissivityeps0.95Emissivity

Components

TypeNameDefaultDescription
Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_aTherm
AixLib.Utilities.Interfaces.RadPortStar