Best Models Coefficients Determination
Solar radiation data are the best source of information for estimating average incident radiation necessary for the proper design and assessment of solar energy conversion systems. However, many locations lack the necessary equipment for global radiation measurements. By contrast, data on average hours of sunshine or average percentage of possible sunshine hours are widely available from many hundreds of stations in many countries. Several Angström–Black type regression models have been proposed in the literature for estimating solar radiation using data on the duration of sunshine. Newland added a logarithmic term to the original linear regression equation to obtain a better ...
