Flow Accelerating Wind Flow Accelerating Wind TowerTower

PATENTED BY:Pedro Marrero O´Shanahan

MANUFACTURER:Aerogeneradores Canarios

S.A.

TheThe WindWindWind energy is a by-product of solar energy with an annual

power potential between 2·1015 and 5·1015 kWh. This huge amount of energy can be captured by wind mills.

Wind MillsWind 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

Historical Evolution of Wind Historical Evolution of Wind MillsMills

Conceptually they have not evolved in thousands of years. They have only adapted their components

to the global technological development.

In the past:In the past: Actually: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.

BUT THE MOST IMPORTANT FACT IS .....

Historical Evolution of Wind Historical Evolution of Wind MillsMills

- 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.

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 Historical Evolution of Wind MillsMills

The Flow Accelerating Wind Tower DOES DOES NOT USE WIND IN ITS NATURAL STATE, NOT USE WIND IN ITS NATURAL STATE,

BUT IT ACTS ON WIND BY ACCELERATING BUT IT ACTS ON WIND BY ACCELERATING ITIT,

This is a new concept in wind turbine design and the way to obtain power.

Flow Accelerating Wind Flow Accelerating Wind Tower.Tower.

An Innovating ConceptAn Innovating Concept..

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 = Q = SS11· v· v1 1 = =

ss22··VV22

Q=Caudal

S=Section of the tube

V=Speed of the fluid

Therefore, if the section decreases the Therefore, if the section decreases the speed must increase proportionally.speed must increase proportionally.

How can we do it?How can we do it?

Q = S1•

V1

Q = S2•V2

Q = Q = SS11· v· v1 1 = s= s22··VV22==

RepresentationRepresentation

Ct.Ct.

Caudal stays constant along the tube.

What can we obtain from What can we obtain from this?this?

An important increase of the energy taken by the wind turbine, proportional to the cube of the

speed, according to:

SS11·V·V1 1 = S= S22·V·V22

SS11·V·V11 = = ss22··VV22

EE

EE

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:

Application of these Principles to Application of these Principles to the the

Flow Accelerating Wind TowerFlow Accelerating Wind Tower

VV11

VV22

Resulting AdvantagesResulting Advantages

•Technical advantages.•Economic advantages.•Building advantages.

•Environmental advantages.•Social advantages.

•Functional advantages.

Resulting AdvantagesResulting Advantages

•Technical advantages:

Greater energy collection.

Better efficiency.

Usage in low wind potential areas.

Resulting AdvantagesResulting 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.

Resulting AdvantagesResulting 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.

Resulting AdvantagesResulting Advantages

•Environmental Advantages:

Less noise pollution.

Less visual impact, because mobile parts are not shown.

Less dangerous for birds.

Resulting AdvantagesResulting 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.

•Functional Advantages:

Resulting AdvantagesResulting Advantages

Possibility to increase the installed power by adding more tubes on the supporting structure.

Power x 1 Power x 2 Power x 3

Flow Accelerating Wind Flow Accelerating Wind Tower DiagramTower Diagram

Flow Accelerating Wind Flow Accelerating Wind TowerTower

Size ComparisonSize Comparison

Flow Accelerating Wind Flow Accelerating Wind TowerTower

END OF PRESENTATIONEND OF PRESENTATION

PATENTED BY:PATENTED BY:Pedro M. Marrero OPedro M. Marrero O´Shanahan´Shanahane-mail: e-mail: pedromarrero@terra.espedromarrero@terra.es

MANUFACTURER:MANUFACTURER:Aerogeneradores Canarios, Aerogeneradores Canarios, S. A.S. A.e-mail: e-mail: pmo@acsaeolica.compmo@acsaeolica.com

Flow Accelerating Wind Flow Accelerating Wind TowerTower

THANK YOU FOR YOUR ATTENTIONTHANK YOU FOR YOUR ATTENTION