Wind energy use

Abstract

The invention provides wind energy use. One application provides wind energy use for water harvesting from natural humid air. The method is based on changing thermodynamic state properties of ambient airborne wind passed through a convergent-divergent system. The device comprises a cascade of sequentially arranged wind converging and wing-like components. Those components transform the wind into fast, cooled, out-flowing air portions. The decrease in static pressure and temperature triggers condensation of water-vapor into water-aerosols. Another application of the method provides an effective mechanism for harvesting electrical energy from naturally warm 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. The electrical energy harvesting mechanism is also applicable to use of natural renewable energy of streaming water.

1 . A stream concentration engine exposed to flow, said stream concentration engine comprising at least two opposite wing-like details, wherein a lifting force is defined as acting from said flowing stream on a streamlined wing, and wherein said at least two opposite wing-like details are arranged such that said flowing stream acts with said lifting force on each of said at least two opposite wing-like details, wherein said lifting forces are directed in opposite directions, thereby pushing away said at least two opposite wing-like details from each other. 
     
     
         2 . The stream concentration engine of  claim 1 , wherein said flow is at least one of air wind and streaming water. 
     
     
         3 . A stream concentration engine exposed to oncoming flow;
 wherein a streamlined wing is defined as a spatial-configuration having an asymmetrical streamlined contour, and wherein the upper side of said contour is longer than the lower side of said contour and a lifting force, acting on said streamlined wing from said streaming flow, is directed upward;   and wherein said stream concentration engine comprises at least one coiled-up said streamlined wing, and wherein said coiled-up streamlined wing has at least one turn around the coil-axis directed substantially along the direction of said oncoming flow, and said coiling-up is such that said lower side of said streamlined wing is turned into said coil-axis, and wherein said coiled-up streamlined wing converges said oncoming flow into said coil-axis.   
     
     
         4 . The stream concentration engine of  claim 3 , wherein said coiled-up streamlined wing has at least one of circle-like, ellipse-like, helical-like, spiral of Archimedes, and screw of Archimedes profiles. 
     
     
         5 . The stream concentration engine of  claim 3 , wherein said flow is at least one of air wind and streaming water. 
     
     
         6 . The stream concentration engine of  claim 3 ;
 wherein said stream concentration engine is further supplied by a propeller powered by at list one of fuel and electricity, and wherein said oncoming flow is a humid air stream, wherein said humid air stream is made by a propeller powered by at list one of fuel and electricity; and wherein said converging of said air stream by said coiled-up streamlined wing results in the following phenomena: said stream acceleration according to the equation of continuity, and said air stream static pressure decrease according to Bernoulli's principle, and said air stream internal heat energy reduction according to the Energy Conservation Law, and hence, said air stream cooling, and whereby triggering of condensation of water-vapor into at least one of water-aerosols and water-drops of dew.   
     
     
         7 . An aggregate exposed to oncoming flow; said aggregate partially transforming both the kinetic energy and the internal heat energy of said oncoming flow into the electrical energy; wherein said aggregate comprises a stream concentration engine and turbine generator;
 wherein said turbine generator comprises blades subjected to rotation by said oncoming flow and is capable to harvest the electrical energy from the kinetic energy of said oncoming flow;   and wherein said stream concentration engine comprises a set of sequentially cascaded horn-tubes; wherein said set comprises at least two said cascaded horn-tubes, and wherein each said cascaded horn-tube having two open butt-ends: inlet and outlet, and having a form of a converging nozzle with varying cross-section area;   and wherein said sequentially cascaded horn-tubes are oriented such that said oncoming flow portion enters said inlets and proceeds within said cascaded horn-tubes to said outlets;   and wherein set's outlet is defined as the last of said outlets on the flow propagation way;   wherein the original front is defined as a front of said oncoming flow yet to be converged;   and wherein an effective inlet area is defined as an area of said original front of said flowing stream portion that enters said cascaded horn-tubes;   and wherein a throat of said set of cascaded horn-tubes is defined as a fragment of said set of sequentially cascaded horn-tubes, wherein said fragment has the minimal said varying cross-section area; wherein said throat minimal cross-section area differs from said effective inlet area at least doubly;   and wherein said converging cross-section of said cascaded horn-tubes forces said flowing stream portion to reduce in said stream cross-section area, in particular, resulting in the following phenomena:
 (a) increase of said flowing stream velocity and density such that the multiplication of values of said stream velocity and said stream density is inversely-proportional to said reduced stream cross-section area according to the equation of continuity, 
 (b) decrease the static pressure of said accelerated flowing stream portion according to Bernoulli's principle, and 
 (c) partial transformation of the internal heat energy into kinetic energy of said flowing stream portion thereby increasing the kinetic energy of said stream portion according to the Energy Conservation Law; 
   wherein further, said accelerated flowing stream portion is blowing to said blades of said turbine generator; wherein said turbine generator partially transforms said increased kinetic energy of said flowing stream portion correspondently into increased harvested electrical energy, thereby in the total analysis, resulting in partial transformation of both the kinetic energy and the internal heat energy of said oncoming flow portion into electrical energy harvested by said turbine generator.   
     
     
         8 . The aggregate of  claim 7 ;
 wherein the height of said cross-section is defined as the mean height above the world ocean level for all said cross-section points; and wherein the gravitational potential energy of said flowing stream portion is defined as the kind of energy stored in said flowing stream portion mass in the Earth's gravitational field;   and wherein said set of sequentially cascaded horn-tubes having such a configuration and arrangement that said height of said flowing stream portion original front cross-section is higher than said set's outlet cross-section height, so, according to Bernoulli's principle said flowing stream portion at said set's outlet has higher speed and lower gravitational potential energy; whereby in the total analysis, said aggregate further partially transforms said gravitational potential energy of said oncoming flowing stream portion into electrical energy.   
     
     
         9 . The aggregate of  claim 7 , wherein said oncoming flow is natural renewable air wind flowing through and around said aggregate, and wherein said turbine generator is a wind turbine. 
     
     
         10 . The aggregate of  claim 7 , wherein said oncoming flow is natural renewable streaming water flowing through and around said aggregate, and wherein said turbine generator is a hydro turbine. 
     
     
         11 . The aggregate of  claim 7 , wherein said set of sequentially cascaded horn-tubes is further modified into an unbroken blade, coiled-up helically in alignment with an outer contour of a screw of Archimedes. 
     
     
         12 . The aggregate of  claim 7 , wherein said aggregate is further supplied by a propeller powered by at list one of fuel and electricity, and wherein said oncoming flow is made by said propeller, and whereby the net-efficiency of electrical power producing by said aggregate is defined by difference between power harvested by said turbine generator and power consumed by said propeller.