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InternalWall

Wall or floor between two zones: side a faces the zone of propsBus_a, side b the other

FastSmoothBuildings.Envelope.InternalWall, model (source)

Extends PartialOpaque.

Purpose

Wall or floor between two zones: the conduction of PartialOpaque with side a facing the zone of propsBus_a and side b the zone of propsBus_b. The layers are given from side a; all the layer boundaries T[1] (side a) to T[nLay + 1] (side b) are states.

Equations

At each face, Q = Qrad − Qint: the radiation the zone of that side gives to the face minus the convection to its air (interiorConvection). azi and til are those of side a; side b faces the other way, its natural convection coefficients are taken at the tilt π − til, and it is the floor of its zone when side a is a ceiling (til = 0).

Parameters

  • epsLw, absSol: the long-wave emissivity and the solar absorptance of both faces, 0.84 by default as Buildings' surBou; the emissivities and absorptances of the construction record are not used.

Use

The partition of Examples.TwoZones.

Parameters

Parameter Type Unit Default Description
epsLw Real 0.84 Long-wave emissivity of both faces (Buildings surBou)
absSol Real 0.84 Solar absorptance of both faces (Buildings surBou)

Revisions

  • October 2026: moved from trano's FastModel.Envelope.