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

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

TitleQuicklite 1, A Daylighting Program for the TI-59 Calculator
Publication TypeReport
Year of Publication1981
AuthorsHarvey J Bryan, Robert D Clear, James Rosen, Stephen E Selkowitz
Pagination27
Date Published04/1981
InstitutionLawrence Berkeley Laboratory
CityBerkeley
Other NumbersW-80, EEB-W-81-01
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.

Notes

Also published in Lighting Design and Application.

LBNL Report Number

LBL-12248