INTRODUCTION:
At present, it is possible to observe the following structural deficit, of social character, referred to energy availability, and to the hazardous effect that conventional sources of energy produce in the atmosphere.
-Conventional sources (fossil), were suitable to develop a human paradigm: “to obtain useful energy it is necessary to burn up something”, paradigm coming from the Fire Era.
-In this way, man has experienced with several sources, adopting finally three: carbon, petroleum and gas, because of its heating power. These basic sources conform the platform that support mechanical and electrical generation around the world.
-As we know, these sources are limited, and at the present consumption rate, known reserves will be exhausted in short. Furthermore, this situation will be harmful for the petrochemical industry, which produces an enormous variety of products on which human activity depends.
-Combustion products from these sources, concentrated on the Earth atmosphere, are producing ecological problems with unforeseeable consequences.
-Concentrated energy resources in a few nations, added to inevitable scarcity due to its limitation, will produce important lack of equilibrium of nations, with unforeseeable results.
-Water scarcity, that people are beginning to talk, could substitute with sea water through de-salination process, but it is so expensive at present that it becomes inconvenient, in practise.
-The present generation and distribution of electricity, is not sufficient to supply all the human requirements, limiting human development, in a progressive sense.
-The use of alternative sources like solar and eolic, is very limited and dependent on available sunlight and wind.
-Great dams and nuclear plants produce irreversible ecological problems.
-Bio-fuel requires such a large cultivation area, that could affect production and price of foods.
-As we can notice, the structure of energy availability, on which humanity bases its development, is at risk, and could produce great social problems in the near future.
THE PROJECT:
As a consequence of fifteen years labour partially dedicated to search in eolic energy, surged an idea, that was registered, and would permit equipment production to converse air energy into useful mechanic and electric energy.
The observation of conventional eolic equipment performance, plus the observation of Magnus effect in rotating cylinders submitted to an air flow, allowed the elaboration of a project finally rewarded at Lujan`s University, Argentina (Dec 2001). This produced deepened understanding on air energy and the means to access it.
It was possible to apply the simple idea that birds and planes, fly without the need of natural wind. It is not necessary to expect that winds blow.
The observation of technical characteristics of commercial planes, lead to develop this idea that I am applying in a prototype, which has the following characteristics:
- It is different from eolic conventional equipment, where it is necessary a natural wind.
- Here a forced wind develops Magnus forces on rotating cylinders, integrating same wing plane effects, but with cylinders around a center, in a circular design.
- Wing plane effect is a lifting force, equal or greater than plane`s weight, obtained with its motors force that is as much the third part of its weight. (Like all people can know in the web about Airbus or Boeing planes). This important difference between lifting and dragging forces revel an additional energy coming from static pressure in the air, useful to plane lifting in the fly.
- Lifting force in a cylinder gets a maximum, for the greatest relation established between circulatory velocity flow and the translational one. This implies maximal torque in the beginning of rotation movement of the system.
- Converts static air energy, that by its nature, pictured by State Equation of Physics, is a way of renewable and available energy, inner related to solar radiation.
The project focus is then, the construction of an idea`s prototype, and the corresponding verification tests, taking the basis traced by a math model, that has been realized.
If this focus result could be attained, it will be possible to get a solution to social-energetic problems described above.
PAST HISTORY: A German scientist called Magnus discovered a new effect in Fluid Mechanics. Working for the German army in the solution of the unforeseen problem surged with canyon bullets running on transversal wind, that displaced bullets away from its objective, Magnus discovered the cause. It is due to interaction between wind and rotation of cylindrical body of the bullet.
Important experiences were realized with rotating cylinders.
In Germany, in 1924, two cylinders of 18 m high and 3 m diameter where used to replace the sails of a ship. Those cylinders, which were ten times greater in exposed area than the sails, moved the ship with same power. This experience was called Flettner`s ship.
Project Madaras was another case, designed to generate electricity by means of a ring of cylinder-cars running on rails, moved by wind.
National Advisory Committee for Aeronautics in the U.S.A, searched the Magnus effect on cylinders in their laboratories to verify the Flettner`s ship experience, at 1925. The conclusions were the following:
“1. The air forces obtainable by a superposition of a circulatory flow upon the one arising from translation, of a doubly symmetric body, are several times greater than have ever been observed on any un-symmetric body.
2. Lift increases with circulation (circulatory flow), although the law connecting the variables is not definitely established or the limits of application known.
3. The rate of increase of lift with rate of revolution seems practically independent of the shape of rotating body, provided it is symmetrical about both axes in its plane of rotation”.
(N.A.C.A., Technical Note Nº 209, 1925, U.S.A.)
IMPORTANT CONCLUSIONS: NACA`s conclusions suggested that rotating cylinders submitted to an air flow can produce a relation between obtainable lift force vs. delivered force, much greater than 1, and similar to the produced in airplanes, with the advantage that this relation can be regulated by cylinder rotation.
PROJECT DESCRIPTION:
The originality of this design is based on the realization of a device made of cylinders distributed around the center of a rotating platform which support the cylinder. Each of them can rotate around his own axis producing a rotating flow of air that combines with a translational forced flow from the axis of platform, flowing through the free space between the cylinders, which is auto-sustained by the rotation of the system. By the Magnus effect, this combination can generate transversal forces to the radius of platform, on each cylinder, producing a resulting mechanical moment on the system axis, which can be used to move a standard electric generator connected to this axis.
Experiences made by NACA (NASA, at present), 1925.
CL: Lift coefficient. Proportional constant in lifting force equation.
CD: Drag coefficient. Proportional constant in dragging force equation.
Important difference can be appreciated between these two coefficients.
The mechanic work realized by wind of velocity V, represented by drag coefficient CD, is several times less than obtained work, represented by lift coefficient CL. On the other hand, both works develops in transversal directions, eliminating the possibility of mutual collaboration.
Necessarily, as can we note, this implies the participation of surrounding air to generate lifting force, and taking account that wind`s work is acting like excitment work for the conversion process, combined with friction`s rotation work, that joined, can be less than lifting work, depending on rotation`s velocity w.r on cylinder.
On this way, a free mechanic energy can be produced from static mass of air, for human use.
ADVANTAGES FROM THIS PROJECT:
-Reduction of fossil fuel consumption.
-Reduction of present CO2 emissions, diminishing the risk of climatic change.
-Availability of abundant, renewable and immediate energy for all.
-To Reduce the cost of energy and obtain free availability, yet in the mountain like in the ocean.
-Human mass incorporation to the benefits of energy, reinforcing their activity.
-To reduce international stress coming from appropriation of natural sources of energy.
-To produce potable water from sea water.
-To reserve gas and petroleum for petrochemical industry.
-To eliminate the construction of great nets of energy distribution.
-To create a new paradigm: there is only one source of natural energy that congregate us.
Contact us: edicionestr@gmail.com
