A model to determine the instantaneous transmittance of glazing for specific direct and diffuse solar radiation conditions is developed. Plots illustrative of the generic behavior of the mean monthly hourly transmittance of glazings in different planes are presented. Using test reference year meteorological data for 29 western European locations, limiting values are determined for clearness indices, orientations, and slopes for which an isotropic diffuse assumption is valid for calculating mean daily transmittance.
Variation of Insolation Transmission With Glazing Plane Position and Sky Conditions
Contributed by the Solar Energy Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF SOLAR ENERGY ENGINEERING. Manuscript received by the ASME Solar Energy Division, Jan. 2002; final revision, Jan. 2003. Associate Editor: A. Walker.
- Views Icon Views
- Share Icon Share
- Search Site
Waide, P. A., and Norton, B. (May 8, 2003). "Variation of Insolation Transmission With Glazing Plane Position and Sky Conditions ." ASME. J. Sol. Energy Eng. May 2003; 125(2): 182–189. https://doi.org/10.1115/1.1563630
Download citation file: