We’re excited to announce that we now have revealed Dr. David Malcolm’s report summarizing how properly the info from the Wind Harvester Mannequin 3.1 turbine matched predictions. We imagine we’re the primary VAWT producer to have an aeroelastic mannequin that has been twice validated with area information.
You’ll be able to learn extra in regards to the course of by which our group collected the info on the turbine’s frequency response, hundreds, drag and energy efficiency in earlier weblog posts right here, right here, right here, and right here.
Dr. Malcolm led the hassle to arrange the immense quantity of information and validate the Firm’s Eole aeroelastic mannequin.
An attention-grabbing first for the load mannequin was its skill to foretell the change in hundreds that may come when the blades handed downwind (by means of the “shadow”) of the central mast. A slight drop of vitality happens simply as predicted. That’s an exceptionally good mannequin.
One other wonderful correlation (see beneath) is its Fatigue Evaluation utilizing the Sandia Nationwide Lab-LIFE82 code and a rainflow counting of the sector information from the blade bending sensor. As a result of the info and the mannequin predictions are so shut, there’s a excessive diploma of confidence that the FR4 fashions predictions are appropriate, and Wind Harvester’s plane aluminum blades will final over 70 years.
Be aware: The anticipated curve (on the proper) is a decent match for the curve from the sector information on the left. Principally, our modeling predicting the masses could be 15% greater, which is sweet. Because of this our turbine is even stronger than predicted as a result of the precise hundreds are decrease than our modeling predictions which is what guided the engineers of their design.
Contact: Jen Hoover, jhoover@windharvest.com
Wind Harvest Worldwide, Inc. is a California-based renewable vitality know-how firm, based in 2006. The corporate makes, sells, and develops tasks for its Wind Harvester model of H-type generators, the one recognized product designed to reap the extremely energetic, turbulent wind that blows 15-80 toes above the bottom. Wind Harvest’s wholly-owned monetary subsidiary Wind Harvest Pilot Undertaking Inc. raises funds and loans it to the guardian firm.
