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Quicklite 1, A Daylighting Program for the TI-59 Calculator

Publication Type

Report

Date Published

04/1981

Authors

Bryan, Harvey J., Robert D. Clear, James Rosen, Stephen E. Selkowitz

Abstract

This paper presents a set of daylighting programs that can be run on a TI-59 hand calculator. The paper gives the program listings, the step-by-step procedures for using the programs, worksheets, and a worked sample problem.

The programs calculate interior horizontal illumination levels or daylight factors from a window. The user can specify the location of the calculation point, or, if a printer is available, the locations of a grid of points. Calculations can be performed for both CIE clear and overcast sky conditions.

The direct sky component calculation uses Riveros approximation for window transmission. The interreflected component calculation uses a split-flux approximation.

Year of Publication

1981

Notes

Also published in Lighting Design and Application.