Wind Power Station Utilizing Lift of a Rotating Cylinder Radomír Goňo VSB - Technical University of Ostrava Department of Electrical Power Engineering

Content Introduction Theory Principle of Magnus effect Patent Experimental Wind Power Station Conclusion

Introduction Political objective of the EU is the increased exploitation of RES. White Report - EU members double RES in energy consume by 2010 (whole Union about 12 %). CR committed to produce 8 % of energy from RES in 2010. 5 m.s-1 is the minimum economic limit for exploitation of the wind power.

Theory WPG is able to convert 40 % of the wind power into electric energy. Roughly divided Windmills - horizontal and vertical axis. Analysis of the WPP output:

Principle of Magnus effect Bernoulli's principle - the pressure is lower on the side where the velocity is greater, there is an unbalanced force - Magnus force.

Patent Institute of Theoretical and Applied Mechanics SB RAS, Russia. Wind tunnel - models, separate rotating and non-rotating cylinders. Calculating methods developed. Most repeated velocities 2 - 6 m.s-1 (blade turbines are not effective). Working range - 2 - 40 m.s-1 (5 - 25 m.s-1 blade). Energy generation and daily working period are increased in 2 times and greater. Optimum power range is 30 - 500 kW; maximum is up to 2 MW at a wind wheel diameter 15 - 50 m.

Experimental Wind Power Station Prototype from Russian was not possible to put it to practical use. Spiral column was invented (national patent). April 2005 machine experiment of new Magnus Windmill 5 m plant was completed - a real proof experiment begins for various data collections.

Comparison Principle.

Comparison Aerodynamic lift.

Comparison Wind flux distribution.

Comparison Performance comparison.

Conclusion The experiment plant is in Ogata, Japan - proof of efficiency of a Magnus Windmill. Magnus Windmill is better than propeller type - power generation efficiency and cheaper construction cost. Magnus wind turbine can be used in a wide range of wind velocities including storm winds.

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