Model studies on spar platform with 5MW wind turbine

This paper presents the model study on the spar platform designed to support 5MW wind turbine in 300m water depth. The diameter of the Spar is 16m, draft is 90m and freeboard is 10m. A 1:100 scale model of the spar is studied in the wave basin. The effect of circular disc of diameter 24m at the bottom of the spar on the heave and surge at the top of the wind tower is reported for the wave height of about 6m and wave period in the range of 6s to 28s, whereas the prototype wave period range is from 6s to 18s. Copyright © 2009 by ASME.