1. Flow Accelerating Wind Tower PATENTED BY: Pedro Marrero O´Shanahan MANUFACTURER: Aerogeneradores Canarios S.A.

2. The Wind Wind energy is a by-product of solar energy with an annual power potential between 2·10 15 and 5·10 15 kWh. This huge amount of energy can be captured by wind mills.

3. Wind Mills Wind mills take wind energy and convert it into: - mechanical energy (to grind, pump water, etc) - electrical power (actual wind turbines) Mill Pumping water Electric power

4. Historical Evolution of Wind Mills Conceptually they have not evolved in thousands of years. They have only adapted their components to the global technological development. In the past:Actually: In the past: Actually: Masonry or wood towers. Wood and canvas rotor blades.Composite structures rotor blades. Wood mechanisms and gears. Steel towers. High technology paint. Manual control and yaw. Mechanical energy was obtained. Low power units. Computer control. Steel mechanisms and gear. They were called wind mills. Electric energy is obtained. Great power units. They are called wind turbines.

5. BUT THE MOST IMPORTANT FACT IS..... Historical Evolution of Wind Mills - BEFORE wind energy was captured in its natural state, and was kept unmodified. - NOW it´s the same, wind energy is captured in its natural state, and is kept unmodified. In thousands of years, there has not been major changes in the way to capture this energy.

6. To sum up, wind mills have been stylised and modernized by applying new technologies and materials, although the basic concept has not changed. There has been only an evolution of components, materials, technologies, electronic, etc. Historical Evolution of Wind Mills

7. DOES NOT USE WIND IN ITS NATURAL STATE, BUT IT ACTS ON WIND BY ACCELERATING IT The Flow Accelerating Wind Tower DOES NOT USE WIND IN ITS NATURAL STATE, BUT IT ACTS ON WIND BY ACCELERATING IT, This is a new concept in wind turbine design and the way to obtain power. Flow Accelerating Wind Tower. An Innovating Concept.

8. In a very simple way by the application of one of the principles of fluid mechanics. In a tube, where the caudal is constant, this is to be hold: Q = S 1 · v 1 = s 2 · V 2 Q=Caudal S=Section of the tube V=Speed of the fluid Therefore, if the section decreases the speed must increase proportionally. How can we do it?

9. Q = S 1 V 1 Q = S 2 V 2 Q = S1· v1 = s2·V2= Representation Ct. Caudal stays constant along the tube.

10. What can we obtain from this? An important increase of the energy taken by the wind turbine, proportional to the cube of the speed, according to: S1·V1 = S2·V2 S1·V1 = s2·V2 E E So, decreasing the section of the tube to a half means that speed is doubled, the unitarian energy is multiplied by 8 and the resulting energy is multiplied by 4:

11. Application of these Principles to the Flow Accelerating Wind Tower V1 V2

12. Resulting Advantages Technical advantages. Economic advantages. Building advantages. Environmental advantages. Social advantages. Functional advantages.

13. Resulting Advantages Technical advantages: Greater energy collection. Better efficiency. Usage in low wind potential areas.

14. Resulting Advantages Economic Advantages: There is a cheaper manufacturing. We obtain cheaper energy. It can be used in actual non profitable and thus cheaper lands. It can also be used in industrial areas that are too expensive for this kind of traditional installations, because it would be possible to locate a industrial plant inside.

15. Resulting Advantages Building Advantages: Smaller size of the wind turbine. Smaller size of the rotor. The tower loses its traditional structural concept, and is transformed itself into an industrial building with an usable space inside.

16. Resulting Advantages Environmental Advantages: Less noise pollution. Less visual impact, because mobile parts are not shown. Less dangerous for birds.

17. Resulting Advantages Social Advantages: Land speculation is avoided as all kind of lands can be used, not only high wind potential areas. We obtain usable spaces inside the structure that can be used for social equipments or so.

18. Functional Advantages: Resulting Advantages Possibility to increase the installed power by adding more tubes on the supporting structure. Power x 1Power x 2 Power x 3

19. Flow Accelerating Wind Tower Diagram

20. Flow Accelerating Wind Tower Size Comparison

21. Flow Accelerating Wind Tower

22. END OF PRESENTATION PATENTED BY: Pedro M. Marrero O´Shanahan e-mail: pedromarrero@terra.es MANUFACTURER: Aerogeneradores Canarios, S. A. e-mail: pmo@acsaeolica.com Flow Accelerating Wind Tower THANK YOU FOR YOUR ATTENTION