A Systematic Procedure for Calculating the Average Illuminance on a Work Plane from Skylights Located in a Pitched Roof.

reportActive / Technical Report | Accession Number: ADA115523 | Open PDF

Abstract:

A systematic design procedure has been developed to calculate the average horizontal illuminance upon a work plane due to skylights in a pitched roof. The calculation procedure allows for pitched roofs with slopes up to 30 degrees from horizontal, and for both clear and overcast sky conditions. The procedure is divided into two basic steps 1 the calculation of total external daylight illuminance upon the sloped skylight surface, and 2 the calculation of average horizontal illuminances upon an interior workplane due to the sloped skylights. Worksheets are used to systemically step through the procedures. All necessary tables and equations are included. Author

Author(s):
Murdoch, J. B. ; Nettleton, J. E.
Author Organization(s):
NEW HAMPSHIRE UNIV DURHAM DEPT OF ELECTRICAL ENGINEERING
Descriptive Note:
Final rept. Jan-Nov 81,
Pagination:
0053

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
CEL-CR-82.022
Contract/Grant Number(s):
N62583-81-MR-307
Task Number(s):
Z036201
Project Number(s):
Z0362
Monitor Series:
CR-82.022
 Subject Terms
Joint Capability Areas:
JCA_4.6_Engineering; JCA_5_Command and Control; JCA_4.5.4_Requirements Definition; JCA_4.5_Operational Contract Support
Modernization Areas:
Fully Networked C3
Communities of Interest:
Air Platforms
Descriptor(s):
*Illumination, Internal, Light, Intensity, Chambers, Surfaces, Work, Sunlight, Sky brightness, Variations, Light transmission, Windows, Roofs, Horizontal orientation, Slope, Computations
Field(s)/Group(s):
Air Conditioning, Heating, Lighting and Ventilating, Optics
Keyword(s):
Illuminance, Rooms, Work areas, *Skylights
Report Date:
1982 May 01