A Method of Optimizing Solar Control and Daylighting Performance in Commercial Office Buildings

A Method of Optimizing Solar Control and Daylighting Performance in Commercial Office Buildings

TitleA Method of Optimizing Solar Control and Daylighting Performance in Commercial Office Buildings
Publication TypeConference Paper
Year of Publication1992
AuthorsRobert Sullivan, Eleanor S Lee, Stephen E Selkowitz
Conference NameThermal Performance of the Exterior Envelopes of Buildings V Conference
Date Published12/1992
Conference LocationClearwater Beach, FL
Call NumberLBL-32931
Abstract

We present a method for analyzing the annual cooling and lighting electricity use and peak demand associated with varying fenestration and lighting strategies in commercial office buildings. A prototypical office building module consisting of four perimeter zones and a central core zone was defined and a series of DOE-2 bidding energy simulations were completed to create a data base for varying fenestration and lighting system parameters. Using regression analysis procedures, we characterize electric energy and peak performance patterns as a function of solar aperture, defined as the product of shading coefficient and window-to-wall ratio, and efective daylighting aperture, defined as the product of visible transmittance and window-to-wall ratio. Optimum performance consists of defining the solar and effective daylighting aperture values that minimize annual energy consumption and peak demand, a process easily facilitated by the methods described herein.

LBNL Report Number

LBL-32931