EFFECTS OF LOADING ON STIFFNESS AND CAPACITY OF WIND TURBINE HYBRID FOUNDATION UNDER 1 G MODELING.

Ahmed Abdelkader, hesham el naggar

In the proceedings of: GeoQuébec 2015: 68th Canadian Geotechnical Conference & 7th Canadian Permafrost Conference

Session: Foundations V / Fondations V

ABSTRACT: Wind Energy generation from both onshore and offshore wind farms is growing rapidly. Monopile foundations offer construction advantages, and therefore are widely used, especially in North Sea offshore wind energy projects, as an effective foundation option for wind turbines. To further enhance the efficiency of monopole foundations for wind turbines applications, a new hybrid system that combines a monopile and a concrete plate is presented and tested in this work. Measured wind loads from boundary layer wind tunnel tests conducted at Western University on a model 5 MW NREL (National Renewable Energy Laboratory) wind turbine were used. A scaled-down non-dimensional framework of stiff foundation models installed in sand was used to conduct a series of static tests under 1-g. Two model foundations were tested in a laboratory setup. The test results were used to develop an equation to predict the plate effects of the proposed hybrid foundation system as an effective modeling technique in the lab.

RÉSUMÉ: La production d'énergie éolienne onshore et offshore croît rapidement. Les fondations monopieux offrent des avantages de construction et, par conséquent, sont largement utilisées, notamment en mer du Nord dans des projets d'énergie éolienne, car elles offrent une véritable option de fondation. Pour accroître l'efficacité des monopieux pour les applications éoliennes, un nouveau système hybride qui combine un monopieu et une plaque de béton est présentée et testée dans ce travail. Les charges de vent mesurla Western University sur un modèle 5 MW NREL (Laboratoire national des énergies renouvelables) ont été utilisées. Un sable a été utilisé pour mener une série d'essais statiques sous 1 g. Deux modèles de fondations ont été testés au laboratoire. Les résultats du test ont été utilisés pour élaborer une équation afin de prédire les effets de la plaque sur le système de fondation hybride.

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Cite this article:
Ahmed Abdelkader; hesham el naggar (2015) EFFECTS OF LOADING ON STIFFNESS AND CAPACITY OF WIND TURBINE HYBRID FOUNDATION UNDER 1 G MODELING. in GEO2015. Ottawa, Ontario: Canadian Geotechnical Society.

@article{753,author = Ahmed Abdelkader; hesham el naggar,title = EFFECTS OF LOADING ON STIFFNESS AND CAPACITY OF WIND TURBINE HYBRID FOUNDATION UNDER 1 G MODELING. ,year = 2015}