Results 211 to 220 of about 11,778 (264)

An analysis of diffuse solar radiation

2016 IEEE 20th Jubilee International Conference on Intelligent Engineering Systems (INES), 2016
The paper studies the sky-diffuse solar radiation data measured in a real location from 2015 to 2016. Based on the global and direct-beam data measured for horizontal and tilted surface, different conversion models are investigated, and the general findings are reported. The mathematical models are evaluated for various climatic variables. The findings
Cristian Vasar, Gabriela Prostean, Iosif Szeidert   +2 more
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Climate, diffused solar radiation and multiple sclerosis

Social Science & Medicine, 1988
Environmental factors implicated as affecting world-wide distribution of multiple sclerosis are reviewed. It is suggested that climate may be involved in the etiology of this disease. Diffused solar radiation effects on multiple sclerosis hospital admission rates are demonstrated.
J M, Laborde, W A, Dando, M L, Teetzen
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Diffuse solar radiation statistics for Italy

Solar Energy, 1981
Abstract In this paper diffuse radiation is correlated with usually measured or more easy computable quantities in order to have a larger number of data available for the various applications of solar energy. Here are used two types of correlation: (a) diffuse radiation as a function of global and extraterrestrial radiation; (b) diffuse radiation as ...
S. Barbaro, G. Cannata, S. Coppolino, C. Leone, E. Sinagra   +4 more
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On the luminous efficacy of diffuse solar radiation

Energy Conversion and Management, 2001
Abstract Models for diffuse illuminance and irradiance and for the luminous efficacy of diffuse solar radiation are developed, specifically for clear skies, and also for all sky types. All luminous efficacy models reported in the present work have the distinctive feature of being obtained from empirical models developed for diffuse illuminance and ...
Luis Robledo, Alfonso Soler
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The diffuse fraction of instantaneous solar radiation

Solar Energy, 1988
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.
H. Suehrcke, P.G. McCormick
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The effects of diffuse solar radiation on the motion of an artificial satellite

Celestial Mechanics, 1982
Previous analyses of the orbits of spherical balloon satellites have attempted to satisfy residuals in observed perturbations in Keplerian elements, assumed to be caused by diffuse radiation pressure, by introducing small variations ins, the parameter representing the reflection characteristics of the satellite's surface. It is difficult to distinguish,
Brookes, C. J., Ryland, F. C. E.
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Calculation of direct solar and diffuse radiation in Israel

International Journal of Climatology, 2001
AbstractThis study deals with the calculation of direct solar radiation and diffuse radiation for locations in Israel as hourly values. The model is based on the calculation of the Linke turbidity factors for the stations Bet‐Dagan, Jerusalem, Beer Sheva, Sedom and Eilat, which have been determined from radiation measurements. The turbidity factors for
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Daily diffuse solar radiation at Beijing

2009 World Non-Grid-Connected Wind Power and Energy Conference, 2009
In order to obtain reliable radiation for design, operation and economic assessment of solar energy conversion device, a statistical analysis of daily correlations between diffuse solar radiation and global solar radiation is carried out using 10yr data (1995–2004) of daily global and diffuse solar radiation obtained at Beijing meteorological station ...
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Improvement of Measurement of Diffuse Solar Radiation

1983
To improve the accuracy of diffuse solar radiation data gained by ring shaded pyranometers, a new formula correcting for losses caused by the Hamburg ring has been derived. The formula has been validated by data sets of different time periods and from different pyranometer types, the latter with slightly modified constants. The correlation coefficients
F. Kasten, K. Dehne, W. Brettschneider
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Dynamic behaviour of diffuse solar radiation

Theoretical and Applied Climatology, 2013
In the present experimental study, the dynamic properties of diffuse solar radiation have been assessed for both overcast and discrete clouds. It is shown that the Baseline Surface Radiation Network methodology can be accepted completely for studying diffuse radiation.
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