Journal ArticleDOI
On the characteristic distribution of hourly diffuse and global solar radiation at Ibadan
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TLDR
In this paper, the authors explored the potential of a previous model for calculating direct and diffuse solar radiation by employing the model to study the characteristic distribution of hourly insolation for six years (1980-1985) at Ibadan.About:
This article is published in Renewable Energy.The article was published on 1992-08-01. It has received 5 citations till now.read more
Citations
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Journal ArticleDOI
Correlations for estimating solar radiation using sunshine hours and temperature measurement in Osogbo, Osun State, Nigeria
TL;DR: In this paper, the global solar radiation on horizontal surface in Osogbo, Osun state, Nigeria was analyzed using 11-year data (1997-2007) using linear and quadratic expressions.
Journal ArticleDOI
The solar energy assessment methods for Nigeria: The current status, the future directions and a neural time series method
TL;DR: In this paper, the first application of artificial neural networks in time series analysis of the solar energy is demonstrated, and the neural time series is verified with One-way ANOVA to have a capacity to predict a current Nigerian solar energy value from the past values.
Journal ArticleDOI
Diffuse solar radiation and associated meteorological parameters in India
TL;DR: In this paper, the results of surface radiation measurements at Calcutta, Poona, Delhi and Madras are presented together with some meteorological parameters, with a special emphasis in relation to the noise level of atmospherics in the very low frequency band.
Dissertation
A probabilistic method of modelling energy storage in electricity systems with intermittent renewable energy
TL;DR: In this paper, a probabilistic method has been developed for modelling the operation of energy storage in electricity systems with significant amounts of wind and solar powered generation, based on a spectral analysis of the variations of wind speed and solar irradiance together with profiles of electrical demand.
References
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Journal ArticleDOI
The interrelationship and characteristic distribution of direct, diffuse and total solar radiation
TL;DR: In this paper, the authors present relationships permitting the determination on a horizontal surface of the instantaneous intensity of diffuse radiation on clear days, the long term average hourly and daily sums of diffuse radii, and the daily sum of diffuse radiata for various categories of days of differing degrees of cloudiness.
Journal Article
Estimation of the diffuse radiation fraction for hourly, daily and monthly-average global radiation [Solar energy].
TL;DR: In this article, the hourly pyrheliometer and pyranometer data from four U.S. locations were used to establish a relationship between the hourly diffuse fraction and the hourly clearness index kT.
Journal ArticleDOI
Estimation of the diffuse radiation fraction for hourly, daily and monthly-average global radiation
TL;DR: In this article, the hourly pyrheliometer and pyranometer data from four U.S. locations were used to establish a relationship between the hourly diffuse fraction and the hourly clearness index kT.
Journal ArticleDOI
The average distribution of solar radiation-correlations between diffuse and hemispherical and between daily and hourly insolation values
Manuel Collares-Pereira,Ari Rabl +1 more
TL;DR: In this article, the correlations of Hottel, Whillier, Liu and Jordan between diffuse and hemispherical, and between instantaneous (hourly) values and daily totals of solar radiation are recalibrated against pyrheliometer data for five stations in the U.S.
Journal ArticleDOI
Correlation equation for hourly diffuse radiation on a horizontal surface
J. F. Orgill,K.G.T. Hollands +1 more
TL;DR: In this article, the authors present an analysis of hourly diffuse radiation on a horizontal surface and recommend an equation to determine the hourly ratio of diffuse-to-total radiation received in a horizontal surfaces.