Calorimetric Measurements of Inward-Flowing Fraction for Complex Glazing and Shading Systems

Publication Type
Conference Paper
Authors
LBL Report Number
LBL-37038
Abstract

This paper presents a calorimetric measurement of layer-specific inward-flowing fractions of absorbed solar energy for a number of geometric configurations common in fenestrations with shading. The inward-flowing fractions are found to be relatively insensitive to exterior conditions. Results for an interior venetian blind over double glazing agree with thermal model calculations in the literature, and are the first layer-specific verification of these calculations. It is argued that a data base of these inward-flowing fractions for a suitably broad class of geometries will make possible the determination of solar heat gain coefficient from non-calorimetric measurements of solar-optical properties of complex fenestration components, a procedure termed solar-thermal separation.

Conference Name
ASHRAE Transactions
Volume
102, Part 1
Year of Publication
1995
Call Number
LBL-37038
Custom 1
<p>Windows and Daylighting Group</p>
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