Monthly-Averaged Utilizability for Multiple Aperture Solar Systems

Abstract

New solar utilizability correlations for solar collectors with apertures at various orientations are developed. These correlations use the functional form introduced by Klein/Theilacker and an Aperture Configuration Ratio descriptive of the collector’s aperture arrangement. Various glazing areas and aperture orientations were considered in several climates. Good accuracy is found for the new correlations which can be used for thermal collector performance prediction as well as sensible cooling load calculation.