Title

A Stratified Air Model For Simulation Of Attic Thermal Performance

Secondary Author(s)

Gu, Lixing; Fairey, Philip

Report Number

FSEC-PF-226-91

URL

http://publications.energyresearch.ucf.edu/wp-content/uploads/2018/06/FSEC-PF-226-91.pdf

Keywords

Simulation; Buildings; Attics

Abstract

An improved computer simulation model for attics has been developed. The model accounts for detailed radiation, buoyancy and wind driven air flows and thermal stratification within the attic airspace. Through comparison with measured data, the paper examines the relative importance of the various modeling parameters and assumptions upon simulation accuracy. Stratification of the attic air was found to be a critical modeling characteristic which is typically ignored in building energy simulations. Both model and measurement results shows that air stratification increases significantly when low-emittance surfaces are included.

Date Published

1-1-1991

Subjects

Buildings - Attics; Simulation

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