Policy / Systems / Technology

November 6, 2011


City of Fukuoka, Kyushu University to Start Offshore Testing of 'Wind Lens' Turbine

Keywords: Environmental Technology Local government Renewable Energy University / Research institute 

JFS/City of Fukuoka, Kyushu University to Start Offshore Testing of 'Wind Lens' Turbine
Rendering of the offshore float : Copyright Research group on wind power generation by offshore floats,
Kyushu University (Partner: Fukuoka City)

Fukuoka City, in Fukuoka Prefecture, Japan, announced on July 21, 2011, that with Kyushu University it would jointly conduct offshore testing of a new "wind lens" turbine developed by the university, from the autumn of 2011 to the end of 2012. This project is sponsored by Japan's Ministry of the Environment. The new turbine has windmill blades shrouded with a brimmed diffuser, which increases the wind's velocity blowing toward the blades, allowing for double or triple the power output compared to conventional wind turbines.

The city and the university have started joint testing four wind lens turbines in two parks in the city since fiscal 2009. One trial of a 3-kilowatt turbine -- with rotors measuring 2.5 meters in diameter and a rated wind speed of 10 meters per second -- showed it can generate 2.5 times more electricity than conventional ones and is quieter and more compact in size.

A hexagon-shaped float 18 meters in diameter will be set about 600 meters off the coast of Marine World Umino-Nakamichi, in the city's Higashi Ward. Two 3-kilowatt wind lens turbines will be installed on the float, which will be moored to concrete anchors on the sea bottom. As the float will be affected by both wind and waves, this test is being conducted in Hakata Bay where wave conditions are relatively gentle.

Kyushu University Research Team Discloses Plans for a Mega Hybrid Power Plant on the Ocean (Related JFS article)

Posted: 2011/11/06 06:00:15 AM