Applying the measured global and diffuse solar radiation data from 78 meteorological stations in China, a countrywide … general correlation model for calculating the daily diffuse radiation was derived on the basis of Liu and Jordan method. Two …

Three most widely used diffuse radiation models are calibrated using the daily data between January 1 1994 and December … suitable for diffuse radiation estimation in China. The averaged correlation coefficient R2 is 0.84 and the maximum value is 0 … model could also be used for diffuse radiation estimation in China, and the averaged value of R2 and parameter X0 is 0 …

The possibility of a diffuse interface of an Ising model on a Cayley tree with four nearest neighbors is illustrated …

This study correlates experimental values with modelled values of global (KT) and diffuse (KD) clearness index in … Athens, Greece. The experimental values come from measurements of daily global and diffuse solar irradiation on horizontal …

A well known 2D approach of Liu and Jordan allows computing isotropic solar diffuse irradiance on a tilted surface. It … diffuse irradiance and ground reflected irradiance incident on an arbitrary oriented surface. The 3D formula predicts a lower … diffuse irradiance than the 2D relationship while the ground reflected irradiance is higher in case of the 3D model than in …

In the present work we study the luminous efficacy of diffuse solar radiation incident on vertical surfaces for a clear … sky and mean hourly values of diffuse irradiance and diffuse illuminance. We develop a model easy to use, similar to a … slope of the surface influences diffuse illuminance and diffuse irradiance in the same way. As a consequence of this …