%0 Journal Article %1 Suehrcke.McCormick1988a %A Suehrcke, H. %A McCormick, P. G. %D 1988 %J Solar Energy %K clearness correlations, diffuse fraction index, radiation solar %N 5 %P 423--430 %T The diffuse fraction of instantaneous solar radiation %V 40 %X Nearly all diffuse fraction correlations have been based on integrated hourly or daily data. Solar collectors, however, see instantaneous solar radiation. Measurements of the terrestrial instantaneous diffuse fraction are shown to depend on both clearness index and air mass. The resulting instantaneous diffuse fraction correlation differs markedly from the correlations obtained for integrated diffuse fractions. A model for the instantaneous diffuse fraction is developed, which describes the generation and transmission of diffuse solar radiation in the atmosphere. The measurements of instantaneous diffuse fraction are used to explain the scatter inherent in daily diffuse fraction data. It is shown that measurements of the instantaneous diffuse fraction together with the frequency distribution of instantaneous radiation may be used to determine monthly average daily diffuse fractions.

@article{Suehrcke.McCormick1988a, abstract = {Nearly all diffuse fraction correlations have been based on integrated hourly or daily data. Solar collectors, however, see instantaneous solar radiation. Measurements of the terrestrial instantaneous diffuse fraction are shown to depend on both clearness index and air mass. The resulting instantaneous diffuse fraction correlation differs markedly from the correlations obtained for integrated diffuse fractions. A model for the instantaneous diffuse fraction is developed, which describes the generation and transmission of diffuse solar radiation in the atmosphere. The measurements of instantaneous diffuse fraction are used to explain the scatter inherent in daily diffuse fraction data. It is shown that measurements of the instantaneous diffuse fraction together with the frequency distribution of instantaneous radiation may be used to determine monthly average daily diffuse fractions.}, added-at = {2011-09-01T13:26:03.000+0200}, author = {Suehrcke, H. and McCormick, P. G.}, biburl = {https://www.bibsonomy.org/bibtex/27af412d9b97518c16c68d3dfb29cc2b4/procomun}, file = {Suehrcke.McCormick1988a.pdf:Suehrcke.McCormick1988a.pdf:PDF}, interhash = {55b77ed2a4106c0aacadbc5eaab24249}, intrahash = {7af412d9b97518c16c68d3dfb29cc2b4}, journal = {Solar Energy}, keywords = {clearness correlations, diffuse fraction index, radiation solar}, number = 5, owner = {oscar}, pages = {423--430}, refid = {Suehrcke.McCormick1988*1}, timestamp = {2011-09-02T08:25:25.000+0200}, title = {The diffuse fraction of instantaneous solar radiation}, volume = 40, year = 1988 }