Correlations of global and diffuse solar luminous efficacy for all sky conditions and comparisons with experimental data of five localities

Some simplified correlations of mean hourly global and diffuse luminous efficacy on the horizontal plane for all sky conditions have been obtained for Arcavacata di Rende (Italy) and have been compared with other literature models and other experimental data measured in Geneva (Switzerland), Vaulx-e...

Full description

Saved in:
Bibliographic Details
Published in:Renewable energy 2008-09, Vol.33 (9), p.2036-2047
Main Authors: Cucumo, M., De Rosa, A., Ferraro, V., Kaliakatsos, D., Marinelli, V.
Format: Article
Language:English
Subjects:
Applied sciences
Diffuse luminous efficacy
Energy
Exact sciences and technology
Global luminous efficacy
Natural energy
Solar energy
Solar radiation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Some simplified correlations of mean hourly global and diffuse luminous efficacy on the horizontal plane for all sky conditions have been obtained for Arcavacata di Rende (Italy) and have been compared with other literature models and other experimental data measured in Geneva (Switzerland), Vaulx-en-Velin (France), Bratislava (Slovakia) and Osaka (Japan). The comparisons show that, for global efficacy, the differences among the various models are not significant, and the use of a model with a constant value of efficacy gives good predictions of global illuminance. For the prediction of diffuse illuminance the differences among the models are larger, but the use of a constant diffuse efficacy provides a good first estimate of diffuse illuminance.
ISSN:0960-1481
1879-0682
DOI:10.1016/j.renene.2007.11.015