Measurements of total and diffuse components of solar radiation have been conducted
using pyranometers at Zaria (latitude 11° 06′ N, longitude 07° 41′ E and altitude of 653.9 …

Most of the meteorological stations around the world measure global irradiation and provide
information on weather elements. Diffuse radiation measurement, however, is unavailable …

Modelling of solar energy systems requires computation of both direct and diffuse
components of incident solar radiation. Based on data collected between 1984 and 1987 in …

Diurnal global irradiation was measured with precision pyranometer in Nsukka, Nigeria and
compared with values generated from five different empirical models proposed by earlier …

Measurements of the hourly global solar radiation (G) and its diffuse component (D) on a
horizontal surface have been carried out in Qena/Upper Egypt in the period from June 1992 …

The total solar radiation during the harmattan months of 1982 to the early part of 1984 at
Enugu, Nigeria, which lies on latitude 6.47° N and longitude 7.55° E and 140 m above sea …

The annual and monthly mean diurnal variations of the diffuse fraction of global solar
irradiance arriving on the ground at a tropical station in Sub-Sahel Africa is here been …

Separating the global solar radiation on a horizontal surface into direct and diffuse
components is required in the simulation of solar energy systems. Many models have been …

Proper design and performance prediction of solar energy systems requires accurate
information on the availability of solar radiation. The diffuse-to-total radiation correlation …

The study introduces a new regression model developed to estimate the hourly values of
diffuse solar radiation at the surface. The model is based on the clearness index and diffuse …