Water Turbines

The development of devices to harness marine energy continues apace but significantly, with no real measure of success. The unique design of the Greenstick allows it to be secured to the ocean or sea bed and, with the addition of a buoyant cassette containing water turbines, move freely through 90° with the tides. The turbines would spin according to the tidal flow and thereby generate power. Multiple Greenstick Water Turbines would be used to generate significant amounts of power. The model below demonstrates this process on a single Greenstick Water Turbine.

In 2013/14, the University of Hull, Marine Engineering Department undertook the Modelling and Testing of a Prototype Screw Anchor for Marine Applications, that screw anchor being the Greenstick. The project included building a scale model of a Greenstick cassette frame to carry a Gorlov Turbine. The test rig is available for further testing and development.

Greenstick could also be used to house a propeller type water turbine. The model shows Greensticks being deployed vertically, the turbine lowered into position, the locking sleeve unlocked and the Greensticks angled to meet and form a solid structure.

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