Abstract
In the present work, the shading effect of a south building on the aperture of a solar device in the north latitudes is theoretically investigated. A mathematical model to calculate the instantaneous value of shaded area as a function of building horizontal distance, neight, width and the angle of deviation from south direction as well as aperture dimensions has been obtained. The shading factor, which is the ratio between the actual total incident solar radiation and that without shading on the aperture, has been calculated for different geometrical parameters. The annual average shading factor, which may be considered as a reasonable measure of the shading effect is also given in terms of the system dimensionless parameters.
Highlights
The shading effects of large scale 901ar systems are studied by Jones and Burkhart [4J
This work is aimed to investigate the effect of a south building shading on a solar device, since the style of buildings ls mostly east - west, in north latitudes
The deviation of building from the south direction is measured by the angle c, between the line connectIng the mid points of the bottom aperture edge and the building width, and the south directioin in a horizontal plane
Summary
Equations I, 2 and 3 could be used to.obtain the value of (IlL), in teras of the angle ;I., as (l/L). Where e" L/W The shade lenqth at the d1rection w, 1s given by, aperture lower edge. The "ASHRAE" Handbook of Fundamentals [71 recommends the following equation for the prediction of the normal beam solar radiation Hbl\'. Here f, is the diffuse radiation factor which is given numerically for each month in the Handbook. The shading effect of the beam radiation is taken into account, ....here the value of A. In order to investigate the influence of system different parameters, the annual average value of the shading factor is essentially.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
