CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of application Ser.No. PCT/US2010/059786, filed December 10, 2010.

This application is a continuation-in-part of application Ser. No. 13/298,678, filed November 17, 201 1 , which is a continuation-in-part of application Ser. No. 12/854,196, filed August 1 1 , 2010, which is a continuation-in-part of now abandoned application Ser. No. 12/774,936, filed May 06, 2010 based upon and claims the benefit of US Provisional Application No. 61 /1 75,799 filed May 06, 2009, and US Provisional Application No. 61 /233,207 filed August 12, 2009.

FIELD OF THE INVENTION

The invention relates generally to ecologically clean technology, and, more particularly, to extraction of distilled water from humid air and electricity harvesting by turbine generators.

BACKGROUND OF THE INVENTION

In most geographic areas prior art water sources and electrical energy producing stations are placed far from the actual utilization point. In such cases, the ability to extract water and produce electricity from air offers a substantial advantage, because there is no need to transport the water and electricity from a distant source to a local storage facility. Moreover, if water and electricity is continuously harvested, local water and electrical energy reserve requirements are greatly reduced. Using a wind turbine to produce electricity and an electrical cooler to produce water condensation on cooled surfaces are known in the art. Such a technique would be practical, if the electricity harvesting were extremely cheap. Today wind power is widely used for the electricity generation; however relatively bulky wind turbines are applied to satisfy the requirements in electrical power. In fact, the use of the bulky wind turbines to convert the kinetic power of natural air wind inertia into electrical power does not provide a cheap enough service.

Another reason for water-from-air extraction occurs in those regions of the world where potable water sources are scarce or absent.

Given the ubiquitous nature of water in the vapor phase, it is possible to establish a sustainable water supply at virtually any location having air being refreshed, if one can develop a technology that efficiently harvests water from air. Possession of such technology will provide a clear logistical advantage to supply agriculture, industry and townspeople with water and to control ecological conditions.

The water condensation process is an exothermal process. I.e., when water is transformed from vapors to aerosols and/or dew, so-called latent-heat is released, thereby heating the aerosols and/or dew drops themselves, as well as the surroundings. The pre-heated aerosols and/or dew drops subsequently evaporate back to gaseous form, thereby slowing down the desired condensation process. Prior Art Fig. 1 is a schematic drawing of a classical profile of an airplane wing 10. It is well-known that there is a lift-effect of the airplane wing 10, which is a result of the non-symmetrical profile of wing 10. An oncoming air stream 12 flows around the non-symmetrical profile of wing 10, drawing forward the adjacent air due to air viscosity, according to the so-called Coanda-effect. The axis 11 of wing 10 is defined as separating the upper and lower fluxes. Axis 11 of wing 10 and the horizontal direction of the oncoming air flux 12 constitute a so-called "attack angle" 13. Firstly, a lifting-force is defined by attack angle 13, which redirects the flowing wind. Secondly, when attack angle 13 is equal to zero, wing 10, having an ideally streamlined contour, provides that the upper air flux 14 and the lower air flux 15 meet behind wing 10.

Both upper air flux 14 and lower air flux 15, flowing around wing 10, are redirected in alignment with wing 10's profile according to the Coanda-effect, and incur changes in their cross-section areas and so are accelerated convectively according to the continuity principle: pSv = Const , where p is the density of flux; v is the flux velocity, and S is the flux cross-section area. As a result, upper air flux 14, subjected to stronger convergence, runs faster, than lower flux 15. According to the Energy Conservation Law written in form of Bernoulli's principle, this results in less so-called static pressure on wing 10 from upper flux 14 than the static pressure from the lower flux 15. If upper flux 14 and lower flux 15 flow around wing 10 laminary, the difference of the static v ²

pressures is defined as AP = Cp—, where AP is the static pressure difference defining the lifting force when attack angle 13 is equal to zero, C is the coefficient, depending on wing 10's non-symmetrical profile, p is the density of the air; and v is the velocity of the air flux relatively to wing 10. In practice, there are also turbulences and vortices of the fluxes, which are not shown here. The general flows, turbulences and vortices result in an air static pressure distribution, particularly, in local static pressure reduction and local extensions of the flowing air. Consider an air portion flowing around wing 10, referring to the Klapeiron-Mendeleev law concerning a so-called hypothetic

PV

ideal gas state: — = nR , where n is the molar quantity of the considered portion of the gas, P is the gas static pressure, V is the volume of the gas portion, T is the absolute temperature of the gas, and R is the gas constant. There are at least two reasons for changes in the gas state parameters of the air portion flowing around wing 10. First, for relatively slow wind, when the flowing air can be considered as incompressible gas, Gay-Lussac's law for isochoric process bonds the static pressure P with absolute temperature T by the equation ^- = ^- , i.e. decrease of static pressure is accompanied with proportional absolute temperature decreasing AT . Second, for wind at higher speeds, running on a non-zero attack angle 13, when the air becomes compressible-extendable, the wind flowing around wing 10 performs work W for the air portion volume extension, wherein the volume extension process is substantially adiabatic. The adiabatic extension results in a change of the portion of gas internal heat energy, accompanied by static pressure reduction and temperature decrease. The work W performed by the wind flowing around wing 10 for the adiabatic process is defined as: w = nC _v AT _a , where C _v is the heat capacity for an isochoric process, and AT _a is the adiabatic temperature decrease of the considered air portion. The value of the adiabatic temperature decrease AT _a = T ₂ - T ₁ is bonded with static pressure reduction by the relation:

T ₂ IT _X = (P ₂ I Ρ _χ ) ^{(γ~Χ)Ι γ} , where P ₁ and P ₂ are static pressures of the considered air portion before and after the considered adiabatic process correspondingly, and γ is an adiabatic parameter, which depends on molecular structure of gas, and the value ϊ= / ^Ί ^ is a good approximation for nature air. In the final analysis, the air portion of the wind flowing around wing 10 is subjected to convective reduction in its cross-section area that results in acceleration of the air portion according to the equation of continuity wherein, considering substantially horizontal motion of gas, the air potion kinetic energy increase occurs at the expense of the internal heat energy, according to the Energy Conservation Law. Thus, local cooling by both mentioned processes: isochoric and adiabatic pressure reduction, acts in particular, as a water condensation trigger, while the increased kinetic power can be used correspondently for increased electrical power harvesting.

Considering nature tornados, a phenomenon is observed that quickly circulating air triggers condensation of vapor molecules into water-aerosols. There is therefore a need in the art for a system to provide an effective and ecologically clean mechanism for controlled water harvesting from air.

Wind energy has historically been used directly to propel sailing ships or conversion into mechanical energy for pumping water or grinding grain. The principal application of wind power today is the generation of electricity. There is therefore a need in the art for a system to provide an effective mechanism for water harvesting from air utilizing nature wind power.

On the other hand, the above-mentioned use of wind power for producing electricity is based on methods for converting the energy of the wind inertia into electricity and ignores methods for substantial conversion of the internal heat energy of naturally warm air wind into electricity. For example, a technique to utilize a long vertical converging tube for air wind portions acceleration for increasing the efficiency of the electricity harvesting from air wind, is suggested in US Patent 7,81 1 ,048 "Turbine-intake tower for wind energy conversion systems" by Daryoush Allaei. The described method assumes a utilization of a hollow tall tower, for example, higher than 1 00 or 200 feet, to make a downward air stream, which further blows to a wind turbine placed near the ground. However, it is problematic to accelerate an air flow substantially for at least the two following reasons. First, the long streaming path causes essential skin-friction resistance. And second, undesired drag is expected because the stream is subjected to re-direction several times.

There is therefore a further need in the art for a system to provide an effective mechanism for harvesting electrical energy from air using renewable wind energy, including the wind inertia, internal heat, and potential energy stored in the air mass in the Earth's gravitational field.

Furthermore, nowadays use of streaming water power for producing electricity is based on methods for converting the energy of the falling water gravitationally accelerated inertia into electricity and ignores methods for substantial conversion of the internal heat energy of naturally warm water into electricity, and so, in particular, it is problematical to produce sufficient amount of electrical power from relatively slow streaming off-shore sea-water waves. There is therefore a further need in the art for a system to provide an effective mechanism for harvesting electrical energy from water using renewable water stream energy, including the water stream inertia, internal heat, and potential energy stored in the air mass in the Earth's gravitational field.

SUMMARY OF THE INVENTION

Accordingly, it is a principal object of the present invention to overcome the limitations of existing methods and apparatuses for extracting water from air, and to provide improved methods and apparatus for extracting water from air and for harvesting electrical energy from streaming flow. It is a further object of the present invention to provide methods and apparatus for more reliable water harvesting.

It is still a further object of the present invention to provide methods and apparatus for ecologically clean harvesting of water, where the forced water condensation from humid air is accomplished by an engine powered by natural wind.

It is yet another object of the present invention to provide methods and apparatus for a more robust constructive solution without moving parts, where the incoming wind is the only moving component of an engine.

It is one further object of the present invention to provide methods and apparatus powered by natural wind for blowing around and cooling objects.

It is one more object of the present invention to provide methods and apparatus for improvement of flying properties of an aircraft.

It is yet a further object of the present invention to provide methods and apparatus powered by naturally warm wind for harvesting electrical energy from both the mechanic and the internal heat energy of natural air wind.

It is yet another object of the present invention to provide methods and apparatus powered by natural wind for harvesting electrical energy from the potential energy stored in the air portion in the Earth's gravitational field.

It is one more object of the present invention to provide methods and apparatus powered by streaming water for harvesting electrical energy from both the mechanic and the internal heat energy of the streaming water.

It is yet a further object of the present invention to provide methods and apparatus supplied by a conventional propeller consuming electrical power for making streaming either air or water flow for harvesting electrical energy from both the mechanic and the internal heat energy of the streaming flow and in the final analysis providing positive net-efficiency of the electrical power harvesting.

It is yet another object of the present invention to provide methods and apparatus, playing role of a converging propeller powered by either burned fuel or electricity for effective trapping either gas or liquid from surroundings wherein the trapping efficiency is achieved at the expense of both the consumed energy and the internal heat energy of the entrapped matter. There has thus been outlined, rather broadly, the more important features of the invention in order that the detailed description thereof that follows hereinafter may be better understood. Additional details and advantages of the invention will be set forth in the detailed description, and in part will be appreciated from the description, or may be learned by practice of the invention.

All the above and other characteristics and advantages of the invention will be further understood through the following illustrative and non-limitative description of preferred embodiments thereof.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to understand the invention and to see how it may be carried out in practice, a preferred embodiment will now be described, by way of a non- limiting example only, with reference to the accompanying drawings, in the drawings:

Fig. 1 is a schematic drawing of a classic prior art profile of an airplane wing;

Fig. 2 is a schematic representation of an ecologically clean passive catcher of water aerosols;

Fig. 3 is a schematic representation of an ecologically clean water condensation engine, having a set of wing-like components, constructed according to an exemplary embodiment of the present invention;

Fig. 4 is a schematic representation of a horn-tube [converging nozzle] and a water condensation engine, constructed according to an exemplary embodiment of the present invention;

Fig. 5 is a schematic representation of a construction comprising cascaded horn-tubes as a water condensation device, constructed according to an exemplary embodiment of the present invention;

Fig. 6a is a schematic illustration of an aggregation of air wind portion converging system and a wind turbine, constructed according to an exemplary embodiment of the present invention; Fig. 6b is a schematic illustration of an aggregation of air wind portion converging and down-redirecting system and a wind turbine, constructed according to an exemplary embodiment of the present invention;

Fig. 6c is a schematic illustration of an aggregation of a propeller, air flow converging system, and a wind turbine, constructed according to an exemplary embodiment of the present invention;

Fig. 7a is schematic illustration of a side view, cut off, and isometric view of wing, coiled-up in alignment with outer contour of the Archimedes screw, constructed according to an exemplary embodiment of the present invention;

Fig. 7b is schematic illustration of an in-line aggregation of two wings, coiled-up in alignment with outer contour of the Archimedes screw; wherein the first coiled-up wing is subjected to forced rotation around the longitudinal carrier axis at the expense of electrical power consumption, constructed according to an exemplary embodiment of the present invention;

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The principles and operation of a method and an apparatus according to the present invention may be better understood with reference to the drawings and the accompanying description, it being understood that these drawings are given for illustrative purposes only and are not meant to be limiting.

Fig. 2 is a top view schematic drawing of an ecologically clean passive catcher 20 of water aerosols. Catcher 20 has a set of wing-like streamlined blades 21 and mirror-reversed wing-like blades 22 for accumulation of naturally condensed dew. When catcher 20 is placed in an open space, humid windy air 23 flows around wing-like blades 21 and 22, wherein air portions acceleration and cooling occur as described hereinabove referring to Fig. 1. Each of wing-like blades 21 and 22 redirects portions of oncoming airflow 23 according to the Coanda-effect, and the shown arrangement of opposite mirror-reversed wing-like blades 21 and 22 results in convergence of air stream 23. Therefore, the resulting air outflow 29 is convectively accelerated according to the equation of continuity. The airflow speed increase is accompanied by the static pressure decrease according to Bernoulli's principle; and the static pressure decrease is bonded with the temperature decrease according to gas state laws. The effects of air portions acceleration and cooling are stronger, if the oncoming wind speed is higher. If weather conditions are such that the temperature of humid windy air 23 is close to so- called "dew-point" temperature, drops of dew arise on the surfaces of blades 21 and 22, which are cooled by the flowing air. Catcher 20, however, is not constructed to provide sufficiently effective trapping of condensed water- aerosols. The partially dried air flux 29, leaving ecologically clean catcher 20, takes away water aerosols, which are not caught, and water-vapor, which remains in a gaseous state. The described condensation triggering is relatively weak, because the natural breeze velocity is relatively slow.

In view of the description referring to Fig. 2, it will be evident to a person skilled in the art, that passive catcher 20 can be supplied by a wind accelerator either converging nozzle and/or propeller to increase productivity of the condensed water- aerosols trapping.

Fig. 3 is a top view schematic drawing of a water condensation device 30 exposed to incoming humid wind 33, constructed according to an exemplary embodiment of the present invention. Water condensation engine 30 comprises stationary profiled curved wing-like blades 31 , which act on the incoming air stream, resulting in eddying and the creation of high spin vortices 32. In addition, fresh portions of humid wind 33 make new portions of the circulating vortex in the same space. Assuming that input humid wind 33 is laminar, such a positive feedback loop re-enforces eddies resulting in said creation of high spin vortices 32. Vortices 32 have inherent pressure distribution, wherein inner pressure is lower and outer pressure is higher. An air portion, which is entrapped by one of the high spin vortices 32, is accelerated and decompressed by the vortex. Adiabatically reduced pressure of the air portion is accompanied by decreased air portion temperature according to gas laws. The air cooling stimulates the desired condensation of the water-vapors into water-aerosols. Fig. 4 is a schematic illustration of a horn-tube converging nozzle 400. Horn-tube converging nozzle 400 is positioned along the incoming wind 44 on its way to a water condensation device 300, constructed according to an exemplary embodiment of the present invention. Water condensation engine 300 is not detailed here. In particular, it may be similar to above-described either water condensation device 20 of Fig. 2 or water condensation device 30 of Fig. 3.

Horn-tube 400 preferably has a wing-like streamlined profile of walls 48 and substantially different diameters 401 and 402 of open butt-ends: inlet 410 and outlet 420. Use of converging walls having a wing-like varied thickness profile 48 prevents arising of the unwanted turbulences. A flux of humid wind 44 enters horn-tube nozzle 400 at inlet 410 having bigger diameter 401 and comes out through narrow throat outlet 420 having a smaller diameter 402. Wing-like streamlined profile 48 and sufficient length 49 between but-ends 410 and 420 provide the conditions for laminar flow of the flux.

Smaller diameter 402 is large enough to prevent substantial brake of oncoming stream 44. According to the continuity equation, the point 45 of the flux crossing throat outlet 420 of smaller diameter 402 experiences higher velocity than the velocity at the flux point 46 near inlet 410 having bigger diameter 401. Thus, assuming incompressible gas, the flux velocity is inversely-proportional to the cross-section area. For example, if inlet 410 diameter 401 is 3 times bigger than throat outlet 420 diameter 402, the velocity of output flux at point 45 is 3 ² = 9 times higher than the velocity of the incoming air flux at the point 46. Thus, horn-tube nozzle 400 provides the high speed output air stream 47 desired for input into water condensation device 300.

Horn-tube converging nozzle 400 itself may play the role of a water condenser. According to Bernoulli's principle, static pressure P of a convectively accelerated portion of air is reduced. According to the Klapeiron- Mendeleev law concerning a hypothetical ideal gas state, and particularly for the case of slow-flowing wind approximated as an incompressible gas, i.e. for p

an isochoric process, according to Gay-Lussac's law, — = Const , where P is the static pressure and T is the absolute temperature of the gas portion. This means that in an approximation of ideal gas laws, reduced static pressure P is accompanied by a proportional decrease of the associated air portion's absolute temperature T . The decreased temperature T may trigger the desired water condensation. The exothermal water condensation is a non- equilibrium process, and the condensed water and surroundings are warmed. So while the considered air portion remains humid, the temperature of the convectively accelerated air portion is to be not lower than the dew-point temperature, wherein the dew-point temperature itself becomes lower as the air humidity is reduced.

In general, to describe the phenomena of ambient wind portion acceleration in a substantially adiabatic process, rather than the hypothetical ideal, considering a real gas, wherein the real gas also causes negative effects of drag and viscous friction, logic based on the Energy Conservation Law is applicable. Accordingly, the original inertia of the ambient wind portion is used for the wind convergence and convective acceleration. Assume that the gas portion, which is subjected to the convergence, propagates substantially horizontally, i.e. with no change of the gas portion potential energy in the Earth's gravitational field. Then the air portion convective acceleration results in partial transformation of the internal heat energy into kinetic energy of the air portion. Assuming compensated turbulences, the drag-force, in particular, is proportional to the cross-section area of the wind redirecting components, and the viscous skin-friction resistance force, in particular, is proportional to the area of all the blown surfaces; and the positive effect of convective acceleration, defined by original inertia of the considered air wind portion, in particular, is proportional to the converged air portion volume. The above-described cross-section and surfaces areas grow proportionally to the square of the increase of the converging system's linear size, and the above-described volume grows proportionally to cube of the increase in the linear size of the converging system. This means that for sufficiently large device dimensions, particularly, outlet 420 size, the above- described positive effect becomes substantially stronger than the negative effects. When the above-mentioned negative effects, resulting in slowing of the considered portion of air wind, are weaker than the effect of the convective acceleration, then the outflow turns out to be accelerated and cooled. In view of the description referring to Fig. 4, it will be evident to a person skilled in the art, that horn-tube nozzle 400 configuration can be considered as a wing-like blade coiled-up around a horizontal axis 100.

In view of the description referring to Fig. 4, it will be evident to a person skilled in the art, that cooled output air stream 47 may be utilized for blowing around and cooling other objects that are located outside of the profiled horn- tube nozzle 400.

However, it is not always practical to apply horn-tube nozzle 400, having a large area inlet 410, for incoming wind convective acceleration. It is neither easy nor economical to build a wide horn-tube nozzle 400, for example, having inlet 410 diameter 401 of 30 m and throat outlet 420 diameter 402 of 1 m , that would be sufficiently durable for the case of a strong gust of wind.

Fig. 5 is a schematic illustration of a set 500 of in-line cascaded horn- tubes: 510, 520, and 530. Each of horn-tubes 510, 520, and 530 has open butt-ends: inlet, respectively, 51 1 , 521 , 531 and throat outlet, respectively, 512, 522, 532. Diameter 501 of inlets 511 , 521 , 531 substantially differs from diameter 502 of throat outlets 512, 522, 532. This cascade, exposed to oncoming humid wind 54, operates as a wind concentration and water condensation engine, according to an exemplary embodiment of the present invention. A flux of humid wind 54 enters profiled horn-tube 510 from inlet 511 , having bigger diameter 501 , and comes out through throat outlet 512, having smaller diameter 502.

Moreover, part of humid wind flux 54 flows around profiled horn-tube 510 forming an outer flowing stream 517.

Furthermore, both fluxes: inner flux 516 exiting from narrow throat outlet 512 and outer flux 517 enter cascaded profiled horn-tube 520. Horn-tube 520 transforms both inner flux 516 and outer flux 517 into the resulting flux 526, exiting the narrow throat outlet 522 of profiled horn-tube 520. The velocity of resulting flux 526 is almost double the velocity of flux 516. Next cascaded horn-tube 530 provides yet added fresh outside portions 527 of wind 54 to the resulting re-enforced flux 536, having a cross-section area equal to the area of the narrow throat outlet 532 of horn-tube 530, and having a velocity that is almost triple that of the velocity of flux 516.

It is found that, in order to converge a huge portion of air wind, it is preferable to use a set of sequentially cascaded relatively small horn-tubes instead of a single big horn-tube. This provides at least the following advantages. First, nozzles of not-practical large dimensions are not needed and a construction remains reasonably feasible; and secondly, the negative effects of the drag-force and the viscous skin-friction resistance are found to be substantially reduced.

Thus, by means of such a cascading of many horn-tubes, it is possible to concentrate a huge front of naturally warm and humid wind into a narrow resulting flux of extra-high velocity. The extra-high velocity of the resulting flux provides extra-cooling further defining high-productive harvesting of condensed water.

In view of the foregoing description referring to Fig. 5, it will be evident to a person skilled in the art that the aforementioned water condensation device 300 can be arranged behind set 500 of in-line cascaded horn-tubes, according to an exemplary embodiment of the present invention.

In view of the foregoing description referring to Fig. 5, it will be evident to a person skilled in the art that various modifications of horn-tubes may be cascaded to implement a converging system. As well, a set 500 of in-line cascaded horn-tubes can be modified into an unbroken blade, coiled-up around horizontal axis 100 helically in alignment with an outer contour of a screw of Archimedes, that is described herein-below referring to Fig. 7a.

In view of the foregoing description referring to Fig. 5, it will be evident to a person skilled in the art that extra-high kinetic power of the resulting flux is capable to use for high-productive electrical power harvesting by a wind turbine, wherein in the final analysis, the wind turbine partially transforms both the origin mechanic energy and the internal heat energy of the yet to be converged oncoming flow portion into electrical energy harvested by the wind turbine.

Fig. 6a is a schematic illustration of aggregation 601 of an air wind converging system 661 comprising set of sequentially arranged horn-tubes, and wind turbine 811 capable to transform a portion of kinetic energy of a blowing air stream 668 into electrical energy, constructed according to an exemplary embodiment of the present invention. Wind turbine 811 comprises wing-like blades 812 attached to blade-grip 813. In this case, wing-like blades 812 are subjected to rotation by converged wind portion 668, streaming through the narrowed cross-section. Optionally one can encapsulate wind turbine 811 into a cylindrical-like shell 814, thereby preventing the cross- section of air stream 668 from increasing and thereby from slowing, while the inertia of fast air wind stream 668 forces the rotation of wing-like blades 812.

It is preferable, that wing-like blades 812 have big area planes oriented almost in alignment with fast blowing stream 668, in order to provide relatively slow but powerful rotation of blade-grip 813. Such an aggregation of wind converging system 601 and wind turbine 811 has principal advantages. Namely, from the point of view of Energy Conservation Law, the increased kinetic energy is harvested at the expense of the internal heat energy of the converged wind portion. This means that wind turbine 811 is powered not only by the kinetic power of the original inertia of the ambient yet to be converged wind portion, but also by the additional harvested kinetic power. Hence, the expected productivity of the wind turbine 811 , which is rotated by fast stream 668, can be increased substantially in comparison with productivity of a wide- front wind turbine, which is blown by the same but not converged portion of natural wind.

Fig. 6b is a schematic illustration of an aggregation of air wind converging system 602 comprising set of sequentially arranged horn-tubes 663, which have asymmetrical configurations, and wind turbine 811 capable to transform a part of kinetic energy of blowing air stream 669 into electrical energy, constructed according to an exemplary embodiment of the present invention. A principal feature of converging system 663 is that the front of converged air wind portion 64 effectively is higher above the ground than resulting outflowing air stream 669 blowing turbine 81 1 blades 812. So, both phenomena occur: horizontal convergence and vertical redirection of the air portion 64 subjected to the convergence. According to Bernoulli's principle, the convective acceleration is accompanied by both a decrease in static pressure and a decrease of potential energy stored in the considered air portion mass in the Earth's gravitational field. Therefore, from the point of view of the Energy Conservation Law, air wind portion 64's kinetic energy increase is at the expense of both the internal heat energy and the potential gravitational energy of air wind potion 64. So it is expected, that wind turbine 811 can produce electricity of substantially higher power than a wide-front wind turbine, which is blown by the same but not converged portion 64 of natural wind. Thereby, application of such in-line cascaded asymmetrical horn-tubes provides yet another advantage by avoiding of impractical tall column installation for air portions downward streaming in order to use the air portions potential gravitational energy.

In view of the foregoing description referring to Figs. 6a and 6b, it will be evident to a person skilled in the art that the described method for the internal heat energy and the potential gravitational energy conversion into the additional kinetic energy is applicable to any gas or liquid having original inertia. For example, this method can be applied for water stream converging to power a hydro (water) turbine destined for electricity generation.

Fig. 6c is a schematic illustration of aggregation 603 comprising a converging system 661 and wind turbine 811 , similar to aggregation 601 described referring to Fig. 6a, but now supplied by a conventional propeller 665 arranged on the converging system inlet, constructed according to an exemplary embodiment of the present invention. Conventional propeller 665 makes air stream at the expense of power consumption. In particular, the consumed power can be electrical power, or power harvested from burned fuel and measured in the electrical power equivalent. Air stream 616 made by conventional propeller 665 and convectively accelerated results in the stream 616 sucking air portions 617 from the outer surrounding according to the Coanda-effect. Further, air portions 617 also are subjected to convergence and convective acceleration. Considering sufficiently strong conventional propeller 665 and rather enlarged converging system 661 , and taking into the account that power associated with air stream is proportional to cube of the air stream speed, it becomes reachable a situation, when the consumed power becomes substantially lower than the power harvested by wind turbine 811 from the renewable internal heat power of air. This further allows powering the conventional propeller 665 by a part of the harvested power; hence, the net- efficiency of the ecologically clean electricity producing by aggregation 603 becomes positive.

In view of the foregoing description referring to Fig. 6c, it will be evident to a person skilled in the art that the described method for converting internal heat energy into additional kinetic energy and further into electrical energy is applicable to systems in which the original stream of either gas or liquid is made using a conventionally powered propeller. As well, in view of the foregoing description referring to Fig. 6c, it will be evident to a person skilled in the art that the described method for converting internal heat energy into additional kinetic energy in order to trigger water-vapors condensation into water-aerosols and water-drops of dew is applicable to systems in which the original stream of humid air wind is made using a conventionally powered propeller.

Fig. 7a comprises schematic illustrations of a side view, cut off, and isometric view of wing 71 , coiled-up in alignment with outer contour of the Archimedes screw, constructed according to an exemplary embodiment of the present invention. When a classical screw of Archimedes (not shown here) is rotating around its longitudinal axis, it is trapping viscous either gas or liquid from surrounding; and vice versa, when such a screw, which can be rotated freely, is exposed to streaming either gas or liquid, the screw becomes subjected to rotation. Shown coiled-up wing 71 , on the one hand, has the mentioned properties of the Archimedes screw, and, on the other hand, has properties of a horn tube to converge oncoming air stream, described hereinbefore referring to Fig. 5. Coiled-up wing 71 overall configuration has an asymmetry around its longitudinal axis that results in the desired rotation of the converged oncoming air stream. Principal advantages are provided, if coiled- up wing 71 is implemented in the following exemplary applications.

First, coiled-up wing 71 can play role of stationary in-line cascaded horn- tubes exposed to humid wind, implemented for water harvesting from air, as described hereinabove referring to Fig. 5. Second, coiled-up wing 71 can be used as a stationary converging system to accelerate natural air wind or water stream in order to increase efficiency of a turbine generator, as it is described hereinabove referring to Fig. 6a.

Third, if coiled-up wing 71 is capable to be rotated freely around its longitudinal carrier axis 75, then it can be used as a turbine generator destined for electricity generation. In comparison with the above-mentioned aggregation 601 (Fig. 6a) that preferably should be longer in the direction of wind propagation, the electricity generation system implementation in the form of coiled-up wing 71 is more compact because coiled-up wing 71 plays both roles: of a converging system and of blades subjected to rotation.

Fourth, coiled-up wing 71 can be subjected to forced rotation around its longitudinal carrier axis 75, and thereby can be used as either gas or liquid entrapping engine. In contrast to the classical Archimedes screw, rotating coiled-up wing 71 also converges and accelerates the entrapped stream, resulting in that the accelerated stream correspondency sucking the gas or liquid from the outer surrounding according to the Coanda-effect, thereby, increasing substantially the productivity of the engine at the expense of the internal heat energy of the converged gas or liquid correspondency. Such an engine can play role of an effective entrapping propeller and be adapted to a vehicle: either car, or ship, or submarine, or airplane, saving fuel substantially.

Fifth, coiled-up wing 71 can play role of a stationary wing-like component attached to a vehicle either airplane or helicopter to improve flying properties of the vehicle.

Sixth, coiled-up wing 71 , being subjected to forced rotation around longitudinal carrier axis 75, can be oriented vertically (not shown here) such that to entrap upper air and accelerate the air stream in the downward direction, and thereby can be used as a lifting engine. In contrast to Leonardo da Vinci's helicopter lifting engine having a classical air trapping screw of Archimedes, the suggested lifting engine has vertically oriented coiled-up wing 71 simultaneously providing both the air trapping and the air stream converging phenomena. The air stream converging allows to convert the internal heat energy of the warm air of surrounding and potential energy stored in air mass in the Earth's gravitational field into the kinetic energy of downward air stream. Seventh, refer now to Fig. 7b comprising two coiled-up wings 71 and 72, which can be aggregated into an in-line arrangement 70. Wherein coiled-up wing 71 is subjected to forced rotation around longitudinal carrier axis 75 at the expense of electrical power consumption, i.e. coiled-up wing 71 plays the role of a trapping-and-converging propeller 77; while coiled-up wing 72, being capable to be rotated freely around its longitudinal carrier axis 76, is used as a wind turbine destined for electrical power producing, i.e. coiled-up wing 72 plays the role of a wind turbine 78 with converging blades 79. In this case, wind turbine 78 having converging blades 79 is blown by air stream, which is accelerated, on the one hand, at the expense of electrical power consumption by trapping-and-converging propeller 77, and on the other hand, due to convergence, i.e. at the expense of the gas stream internal heat power converting. Considering a sufficiently strong trapping-and-converging propeller 77 and rather enlarged coiled-up wings 71 and 72, and taking into the account that power associated with air stream is proportional to cube of the air stream speed, it becomes reachable a situation, when the power harvested by wind turbine 78 becomes substantially higher than the power consumed by trapping-and-converging propeller 77; hence, the net-efficiency of electricity producing by in-line arrangement 70 becomes positive.

In view of the foregoing description referring to Figs 7a and 7b, it will be evident to a person skilled in the art that the described coiled-up wing can be applicable to many systems using mechanic and internal heat energy of either gas or liquid. DRAWINGS

It should be understood that the hereinafter sketched exemplary embodiments are merely for purposes of illustrating the teachings of the present invention and should in no way be used to unnecessarily narrow the interpretation of or be construed as being exclusively definitive of the scope of the claims which follow. It is anticipated that one of skill in the art will make many alterations, re-combinations and modifications to the embodiments taught herein without departing from the spirit and scope of the claims.