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Calorimetric measurements of inward-flowing fraction for complex glazing and shading systems

Conference ·
OSTI ID:213863
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 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 noncalorimetric measurements of solar-optical properties of complex fenestration components, a procedure termed solar-thermal separation.
Research Organization:
Lawrence Berkeley Lab., CA (United States)
Sponsoring Organization:
American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., Atlanta, GA (United States); USDOE, Washington, DC (United States)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
213863
Report Number(s):
LBL--37038; CONF-960254--2; ON: DE96008455; CNN: Research Project 548-RP (Agreement BG 87-127)
Country of Publication:
United States
Language:
English