Modeling solar energy input in greenhouses

• Book ID: 104275292
• Publisher: Elsevier Science
• Year: 2001
• Weight: 383 KB
• Volume: 42
• Category: Article
• ISSN: 0140-6701
• DOI: 10.1016/s0140-6701(01)80461-6

✦ Synopsis

In the uresent work, mean hourlv values of the luminous efficacv of direct solar radiation for clear skies in Madrid using solar elevation as the only independent variable have been modelled. Models of the polynomial type, similar to those given by different authors and a model for the direct luminous efficacv mathematicallv coherent with the corresponding models of direct iluminance and* irradiance, are developed. This last luminous efficacy model can be obtained from the corresponding illuminance and irradiance models in an apparently new approach to the subject, and shows a statistical performance as good as the polynomial models. This paper shows how arbitrary polynomial luminous efficacy models can be and tests the dependence of coefficients in these models on local climatic conditions.

Flat-bed sunlight collector/solar reactor for solar-photo-and solarthermochemical syntheses is described. A method is also provided for performing such syntheses without a sunlight focusing device.

W/W392

Fourier analysis of meteorological data for Seeb Dorvlo, A. S. S. Energy Corners. Manage., 2000, 41, (l2