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Talks and Poster Presentations (with Proceedings-Entry):

A. Mahdavi, S. Dervishi:
"A Simple All-Weather Model for Diffuse Solar Radiation";
Talk: CLIMA 2013 - 11th REHVA World Congress and the 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings, Prag, Tschechische Republik; 2013-06-16 - 2013-06-19; in: "CLIMA 2013 - 11th REHVA World Congress and the 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings", K. Kabele, M. Urban, K. Suchý, M. Lain (ed.); Society of Environmental Engineering (STP), 1/1/1 (2013), Paper ID 192, 10 pages.



English abstract:
Sky radiance models are of fundamental importance in a host of scientific and engineering applications such as building envelope and systems performance simulation. Past research has already resulted in a number of solutions for sky radiance modeling, but further studies in this domain are necessary. Specifically, it is important to consider the model's simplicity and ease of use on the one side and
its predictive capability on the other side. We applied two distinct sets of measured data (collected at the sky monitoring station of our Department of Building Physics and Building Ecology, Vienna University of Technology, Austria) to develop and evaluate our model. The developed model can be used to estimate the contributions
of a set of discrete sky patches toward the overall diffuse horizontal irradiance. The comparison between the measurements and calculations displayed good agreement, implying that the proposed model can be used to estimate solar irradiance on variously inclined surfaces with reasonable accuracy.

German abstract:
none, see english version

Keywords:
sky radiance, irradiance coefficient, modeling, simulation