Wind turbine with channels and roof air exhaust

Abstract

This wind turbine is enclosed in a housing structure with a bell shaped opening and a stack effect created on the roof. One side of the housing, facing the wind, opens up to receive air. The air that enters the housing is divided into multiple chambers. The chambers and turning vanes guide the air directly to the blades and help in minimizing air turbulence. The blades are angled to receive the maximum amount of the air. The air rotates the blades turning the rotor, converting mechanical rotation into electrical power. There is a horizontal rotor attached to vertical shaft which is used to generate electrical energy. The stack effect on the roof creates a negative air flow aiding in turning the rotor.

Claims

1. A wind powered turbine assembly comprising: an enclosure that defines an interior space wherein the enclosure defines openings through which air can flow into the enclosure and wherein the interior space defines two adjacent vertical columns; a rotor having a plurality of fan blades positioned within the enclosure, wherein the rotor is mounted so as to have an axis of rotation that extends in a direction perpendicular to the direction of the airflow; a plurality of channels formed in the enclosure so as to direct air from the openings to the rotor wherein the channels are formed into a first and second group such that a first group is directed towards a first column and the second group are adjusted toward the second column; and wherein the enclosure defines an exhaust stack from which air can be extracted from the enclosure after inducing the rotor to rotate.

2. The assembly of claim 1, wherein the enclosure has multiple stories and the channels extend along each of the multiple stories.

3. The assembly of claim 1 wherein the channels are curved and wherein turning vanes are included in the channels to facilitate flow of air.

4. The assembly of claim 1, wherein the exhaust stack has an opening that is sized to be approximately the same size as the rotor.

5. The assembly of claim 1, wherein a flange extends about the exterior surface of the exhaust stack opening to shelter the rotor from external air flow and to create a negative pressure to draw air out of the interior space of the enclosure.

6. The assembly of claim 1, further comprising screens that inhibit the entry of animals into the interior space.

7. The assembly of claim 1, wherein the enclosure is cylindrical.

8. A wind powered turbine assembly comprising: an enclosure that define an interior space and at least one side wall wherein an opening is formed in at least one side wall and wherein the interior space defines two adjacent vertical columns; an air scope assembly mounted to the at least one side wall wherein the air scope assembly has a surface area greater than the at least one opening and gathers wind to deliver to the at least one opening; a rotor assembly positioned within the enclosure wherein the rotor assembly includes a rotor that rotates in response to air being delivered to the rotor in a direction that has a component that is parallel to at least one the side wall; a plurality of channels that extend from the at least one opening to the rotor so as to deliver air to the rotor at a plurality of locations about the rotor wherein the channels are formed into a first and second group such that a first group is directed towards a first column and the second group are adjusted toward the second column.

9. The assembly of claim 8, wherein the enclosure comprises a cylindrical enclosure at the axis of the rotor is parallel to the axis of the cylindrical enclosure.

10. The assembly of claim 9, wherein an exhaust opening is formed adjacent the upper end of the enclosure and wherein the rotor is recessed below the exhaust opening so that the exhaust opening induces a stack effect on the air that is flowing through the rotor.

11. The assembly of claim 8, wherein the plurality of channels comprises two rows of channels that deliver air to a plurality of sectors of the rotor.

12. The assembly of claim 11, wherein there are two rows of three channels.

13. The assembly of claim 8, wherein the plurality of channels extend in a direction perpendicular to the axis of rotation of the rotor and then parallel to the axis of rotation.

14. The assembly of claim 13, wherein vanes are formed in the plurality of channels.

15. The assembly of claim 8, wherein the rotor assembly includes a transmission and a generator that are connected to the rotor so that rotation of the rotor induces the generator to produce electricity.

16. The assembly of claim 8, wherein the rotor comprises a ring shaped rotor having plates that extend radially outward from the axis of rotation.

17. The assembly of claim 16, wherein the rotor includes a hub assembly and an outer blade wall wherein the blades extend from hub assembly to the blade wall.

18. The assembly of claim 17, wherein the rotor is 12 feet in diameter and has a height of 18 inches and the blades extend radially approximately 4 feet and are set at an angle and twist with respect to the axis of rotation of the rotor.

19. The assembly of claim 8, wherein screen are formed over the at least one opening that permit air to enter into the enclosure but inhibit birds or animals from entering the enclosure and contacting the rotor.

20. The assembly of claim 8, further comprising at least one air accelerator that reduces the volume of space the air is flowing in to the rotors and thereby increases the air pressure.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIGS. 1A and 1B are schematic illustrations of one embodiment of an enclosed wind turbine;

(2) FIGS. 2A-2G are schematic illustrations of a rotor assembly of the enclosed wind turbine of FIGS. 1A-1C;

(3) FIGS. 3A-3C are schematic illustrations of the wind turbine of FIGS. 1A and 1B with side panels partially removed to show channels;

(4) FIGS. 4A and 4B are detailed schematics illustrating components of the channels of FIGS. 3A-3C; and

(5) FIG. 5 is a schematic illustration of an optional air accelerator.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

(6) Reference will now be made to the drawings wherein like numerals refer to like parts throughout. As shown in FIGS. 1A-1B, a wind turbine 100 is formed such that a rotor assembly 102 is positioned within a housing 104. The housing 104 includes an air scoop opening assembly 106 that defines an opening 108 that directs air into a plurality of channels 110. As will be described in greater detail below, the channels 110 direct the air to different circumferential locations of the rotor assembly 102 so that force is more equally distributed against the rotor assembly 102.

(7) In one implementation, the air scoop assembly 106 has an air scoop 112 that is comprised of four slanted walls that direct wind into the smaller dimensioned opening 108. In one non-limiting example, the air scoop 112 has exterior dimensions of approximately 12 to 15 feet high by 12 to 15 feet wide and has interior panels 114 that are angled at an angle of approximately 30 to 45 degrees. The interior panels 114 border the opening 108 which has dimensions of approximately 12 feet wide by 8 feet high. It will be appreciated that various modifications to the dimensions described herein can be made by those skilled in the art without departing from the scope of the present invention.

(8) In one implementation there are a total of 6 different channels 110 each having cross sectional dimensions of 4 feet by 4 feet that are arranged into two rows of three channels 110. In this implementation, the top channels direct the air to the side of the rotor assembly 102 that is positioned proximate the opening 108 and the bottom row of channels directs the air to the side of the rotor assembly 102 that is located distal from the opening 108. Lines 114 in FIGS. 1A and 1B detail the pathways defined by the channels 110 that direct the air towards the various different sections of the rotor assembly 102. The channels 110 will be described in greater detail below with respect to FIGS. 3A-3C. As is also schematically shown in FIG. 1A, a screen 111 may also be placed in front of the channels 110 to inhibit animals or birds from entering the housing 104. The channels 110 preferably are configured to alter shape with vanes so that the air is exhausted out of a round opening to match the rounded configuration of the housing 104 in the manner that is described below.

(9) The housing 104 includes a cylindrical section 116 that is sized so as to receive the rotor assembly 102. In one embodiment, the cylindrical section 116 of the housing 104 is sized so as to receive a rotor 120 of the rotor assembly 102 that is approximately 12 feet in diameter, however, the housing can be sized upwards and downwards to accommodate different sizes of rotors depending upon the implementation. The cylindrical section 116 of the housing 104 is, in one implementation, approximately 11 feet tall.

(10) The housing 104 also includes the entry section 118 that is generally rectangular and provides a space through which the channels 110 can be routed from the opening 108 into an interior space 122 of the cylindrical portion 116 of the housing 104. The channels 110 may also include vanes 124 that direct the air flow inward around corners and the like so that less energy of the air flow is lost due to the air travelling through the channels 110.

(11) As is shown in FIGS. 1A and 1B, the rotor 120 of the rotor assembly 102 is mounted so as to be recessed beneath an upper opening 125 of the cylindrical section 116 of the housing 104. The upper opening 125 acts as a stack that draws air out of the cylindrical housing 116 in a manner similar to a smoke stack which improves air flow and reduces back pressure against the rotation of the rotor 120, thereby improving the efficiency of the turbine 100.

(12) FIGS. 2A-2G provide exemplary illustrations of the components of one embodiment of a rotor assembly 102. As shown in FIGS. 2A and 2B, the rotor assembly 102 includes a mounting structure 127 that is comprised of a plurality of vertical legs 126 that contact the ground and a horizontal upper platform 128. A rotatable shaft 130 is positioned within the upper platform 128 with bearing assemblies and the like so that the rotatable shaft 130 can rotate within the mounting structure 127. A hub 132 (FIG. 2C-E) of the rotor 120 is then mounted to the rotatable shaft 128 so that the rotor can then rotate within the mounting structure 127. As is also shown in FIGS. 2A and 2B, various horizontal and vertical support structures can also be positioned within the housing 116 so as to stabilize the mounting structure 127 of the rotor assembly 102 when the rotor assembly 102 is rotating in response to wind being delivered to the rotor 120. It will be appreciated that the exact configuration of the rotor assembly 102 can vary depending upon the dimensions of the structure and other design configurations and that the configuration of FIGS. 2A and 2B are simply exemplary.

(13) FIG. 2C-2E illustrates the rotor 120 of the rotor assembly 102. The rotor 120 in this implementation includes a hub assembly 131 that defines the hub member 132 that is positioned over the rotatable shaft 130. A plurality of radially extending support ribs 134 are positioned so as to extend outward from the hub member 132 and connect with an outer hub wall 136. A plurality of angled blades 138 are then connected to the outer hub wall 136 so as to extend further outward to terminate in an outer vane wall 140. The blades 138 are preferably angled such that air that is directed towards the blades 138 from a direction that is normal to the plane of the rotor 120 results in a horizontal force being exerted against the rotor 120 to induce the rotor 120 to rotate about the shaft 130. FIGS. 2D and 2E provide exemplary dimensions of the rotor 120 and the placement, angle and twist of the ribs 138 that are suitable for the instant application.

(14) In one specific implementation, the hub assembly 131 has a diameter of 4.5 feet and the outer vane wall 140 has a diameter of 12 feet and the hub assembly 131 and outer vane wall 140 are 18 inches wide. Further, in this specific implementation, there are 20 blades 138 that extend from the top surface of the outer vane wall 140 to the bottom edge of the outer vane wall 140 at an angle and are spaced apart. It will, however, be apparent that various changes to the dimensions and configurations can be made by those skilled in the art.

(15) FIGS. 2F and 2G are exemplary illustrations of one embodiment of a transmission assembly 142 and power generator 144 that are coupled to the shaft 130 such that when the rotor 102 is induced to rotate in response to wind travelling through the channels 110, the rotational energy of the rotor 102 can be transferred into electrical power. The transmission assembly 142 converts the rotational energy from the rotating shaft 130 into linear energy via a system of belts 146 that are then connected to the generator motor 144 so that electrical energy can be produced by the generator motor 144. In one implementation, the generator motor 144 comprises a known generator motor 144 that produces electrical energy.

(16) As discussed above, the rotor 102 receives air via the channels 110. The channels 110 are arranged within the housing 104 so that each radial portion of the rotor 120 is simultaneously receiving air from the channels 110. FIGS. 3A-3C are schematic illustrations of the housing 104 with portions of the outer wall removed so as to illustrates the channels 110 and vanes 124 that are positioned within the channels 110 to direction the air from the opening 108 when it is flowing substantially parallel to the plane of the rotor 120 to a direction where it is flowing substantially perpendicular to the plane of the rotor 120.

(17) As shown and as discussed above, the three upper channels 110a, 110b, 110c are formed and have vanes 124 that are curved so as to direct the air flowing into those channels into the three 60 degree front segments 152 of the rotor 120. The three bottom channels 110d, 110e, 110f are formed and have vanes 124 that are curved so as to direct the air flowing into those channels into three 60 degree rear segments 154 of the rotor 120. In this way, the air that flows in through the opening 108 as a result of wind impacting upon the wind scoop opening assembly 106 is more evenly distributed about the rotor 120 so that substantially all surfaces of the rotor are simultaneously contributing to the conversion of wind energy into rotational energy of the rotor assembly 102. The channels 110 are square at the opening 108, however, at the exhaust, the openings are preferably sized and shaped to match the rounded contour of the section of the rotor 120 to which the channels 110 are exhausting air.

(18) FIGS. 4A and 4B provide further illustrations of the vanes 150 that are positioned within the channels 110. Either the vanes 124 can extend through the entire channel, as shown in FIGS. 3A-3C, or the vane 124 can be truncated and only occur at the location where the air is being turned from the horizontal direction at the opening 108 to the vertical direction towards the plane of the rotor 120.

(19) FIG. 5 illustrates a further optional feature of the assembly 100. Air accelerators 160 can also be positioned in the air flow paths that channel the air from a larger space to a smaller space so as to increase the pressure of the air. The wind scoop opening assembly 106 performs this function and the higher pressure air can result in greater force being directed against the surfaces of the blades 138 of the rotor 102. Additional or supplemental air accelerators 160 that similarly compress the air can also be included without departing from the scope of the present invention.

EXEMPLARY IMPLEMENTATIONS

(20) The Applicant has performed calculations of the performance of the disclosed embodiments to determine the potential power generation for this embodiment. These calculations are summarized below. It should be appreciated that, while these calculations demonstrate the efficacy of this design, the specific dimensions and embodiments disclosed herein should not be limiting on the scope of the patent that is being sought.

(21) The following wind turbine configuration is for 12 feet diameter20 blades, and with up to 40 mph wind calculations.

(22) 12 ft Diameter and 20 Blade Configuration.

(23) Blade width: Inner (approx.)=20.1735 Outer (approx.)=29.0527

(24) Force from 2 mph Wind:

(25) $\begin{array}{c}P,\mathrm{Wind}\mathrm{pressure}\left(Psf\right),=\mathrm{.00256}{V}^{.Math.}2\\ \left(V=\mathrm{wind}\mathrm{speed}\mathrm{in}\mathrm{Mph}\right)\\ =0.0102\mathrm{psf}=0.0000708\mathrm{psi}\end{array}$$\begin{array}{c}A=\mathrm{The}\mathrm{projected}\mathrm{area}\mathrm{of}\mathrm{the}\mathrm{item}\\ =1078.42{\mathrm{in}}^2=7.489{\mathrm{ft}}^2\end{array}$$\mathrm{Cd},\mathrm{Drag}\mathrm{coefficient},=2.0\mathrm{for}\mathrm{flat}\mathrm{plates}.\text{.Math.}\mathrm{For}a\mathrm{long}\mathrm{cylinder}\left(\mathrm{like}\mathrm{most}\mathrm{antenna}\mathrm{tubes}\right),\mathrm{Cd}=1.2.$

(26) Note the relationship between them is 1.2/2=0.6, not quite .

(27) $\begin{array}{c}\mathrm{Force},F=AP\mathrm{Cd}\\ =0.153\mathrm{lbs}\text{=>}0.153\mathrm{lbs}20\mathrm{blades}=3.06\mathrm{lbs}\mathrm{Total}\mathrm{Force}.\end{array}$$\mathrm{Total}\mathrm{Force}\mathrm{at}{45}^{}\left(\mathrm{use}\mathrm{normal}\mathrm{to}\mathrm{blade}\right)=3.06\mathrm{lbs}0.7071=2.164\mathrm{lbs}\left(\mathrm{apply}\mathrm{normal}\mathrm{to}\mathrm{blade}\mathrm{surface}\right).$

(28) Force from 12 mph Wind:

(29) $\begin{array}{c}P,\mathrm{Wind}\mathrm{pressure}\left(Psf\right),=\mathrm{.00256}{V}^{.Math.}2\\ \left(V=\mathrm{wind}\mathrm{speed}\mathrm{in}\mathrm{Mph}\right)\\ =0.3686\mathrm{psf}=0.00256\mathrm{psi}\end{array}$$\begin{array}{c}A=\mathrm{The}\mathrm{projected}\mathrm{area}\mathrm{of}\mathrm{the}\mathrm{item}\\ =1078.42{\mathrm{in}}^2=7.489{\mathrm{ft}}^2\end{array}$$\mathrm{Cd},\mathrm{Drag}\mathrm{coefficient},=2.0\mathrm{for}\mathrm{flat}\mathrm{plates}.\text{.Math.}\mathrm{For}a\mathrm{long}\mathrm{cylinder}\left(\mathrm{like}\mathrm{most}\mathrm{antenna}\mathrm{tubes}\right),\mathrm{Cd}=1.2.$

(30) Note the relationship between them is 1.2/2=0.6, not quite .

(31) $\begin{array}{c}\mathrm{Force},F=AP\mathrm{Cd}\\ =5.521\mathrm{lbs}\text{=>}5.521\mathrm{lbs}20\mathrm{blades}=110.42\mathrm{lbs}\mathrm{Total}\mathrm{Force}.\end{array}$$\mathrm{Total}\mathrm{Force}\mathrm{at}{45}^{}\left(\mathrm{use}\mathrm{normal}\mathrm{to}\mathrm{blade}\right)=110.42\mathrm{lbs}0.7071=78.078\mathrm{lbs}\left(\mathrm{apply}\mathrm{normal}\mathrm{to}\mathrm{blade}\mathrm{surface}\right).$

(32) Force from 25 mph Wind:

(33) $\begin{array}{c}P,\mathrm{Wind}\mathrm{pressure}\left(Psf\right),=\mathrm{.00256}{V}^{.Math.}2\\ \left(V=\mathrm{wind}\mathrm{speed}\mathrm{in}\mathrm{Mph}\right)\\ =1.600\mathrm{psf}=0.0111\mathrm{psi}\end{array}$$\begin{array}{c}A=\mathrm{The}\mathrm{projected}\mathrm{area}\mathrm{of}\mathrm{the}\mathrm{item}\\ =1078.42{\mathrm{in}}^2=7.489{\mathrm{ft}}^2\end{array}$$\mathrm{Cd},\mathrm{Drag}\mathrm{coefficient},=2.0\mathrm{for}\mathrm{flat}\mathrm{plates}.\text{.Math.}\mathrm{For}a\mathrm{long}\mathrm{cylinder}\left(\mathrm{like}\mathrm{most}\mathrm{antenna}\mathrm{tubes}\right),\mathrm{Cd}=1.2$

(34) Note the relationship between them is 1.2/2=0.6, not quite .

(35) $\begin{array}{c}\mathrm{Force},F=AP\mathrm{Cd}\\ =23.965\mathrm{lbs}\text{=>}23.965\mathrm{lbs}20\mathrm{blades}=479.3\mathrm{lbs}\mathrm{Total}\mathrm{Force}.\end{array}$$\mathrm{Total}\mathrm{Force}\mathrm{at}{45}^{}\left(\mathrm{use}\mathrm{normal}\mathrm{to}\mathrm{blade}\right)=479.3\mathrm{lbs}0.7071=338.913\mathrm{lbs}\left(\mathrm{apply}\mathrm{normal}\mathrm{to}\mathrm{blade}\mathrm{surface}\right).$

(36) Force from 28 mph Wind:

(37) $\begin{array}{c}P,\mathrm{Wind}\mathrm{pressure}\left(Psf\right),=\mathrm{.00256}{V}^{.Math.}2\\ \left(V=\mathrm{wind}\mathrm{speed}\mathrm{in}\mathrm{Mph}\right)\\ =2.007\mathrm{psf}=0.014\mathrm{psi}\end{array}$$\begin{array}{c}A=\mathrm{The}\mathrm{projected}\mathrm{area}\mathrm{of}\mathrm{the}\mathrm{item}\\ =1078.42{\mathrm{in}}^2=7.489{\mathrm{ft}}^2\end{array}$$\mathrm{Cd},\mathrm{Drag}\mathrm{coefficient},=2.0\mathrm{for}\mathrm{flat}\mathrm{plates}.\text{.Math.}\mathrm{For}a\mathrm{long}\mathrm{cylinder}\left(\mathrm{like}\mathrm{most}\mathrm{antenna}\mathrm{tubes}\right),\mathrm{Cd}=1.2$

(38) Note the relationship between them is 1.2/2=0.6, not quite .

(39) $\begin{array}{c}\mathrm{Force},F=AP\mathrm{Cd}\\ =30.196\mathrm{lbs}\text{=>}30.196\mathrm{lbs}20\mathrm{blades}\end{array}$$\mathrm{Total}\mathrm{Force}\mathrm{at}{45}^{}\left(\mathrm{use}\mathrm{normal}\mathrm{to}\mathrm{blade}\right)=603.92\mathrm{lbs}0.7071=427.032\mathrm{lbs}\left(\mathrm{apply}\mathrm{normal}\mathrm{to}\mathrm{blade}\mathrm{surface}\right).$

(40) Force from 40 mph Wind:

(41) $\begin{array}{c}P,\mathrm{Wind}\mathrm{pressure}\left(Psf\right),=\mathrm{.00256}{V}^{.Math.}2\\ \left(V=\mathrm{wind}\mathrm{speed}\mathrm{in}\mathrm{Mph}\right)\\ =4.096\mathrm{psf}=0.028\mathrm{psi}\end{array}$$\begin{array}{c}A=\mathrm{The}\mathrm{projected}\mathrm{area}\mathrm{of}\mathrm{the}\mathrm{item}\\ =1078.42{\mathrm{in}}^2=7.489{\mathrm{ft}}^2\end{array}$$\mathrm{Cd},\mathrm{Drag}\mathrm{coefficient},=2.0\mathrm{for}\mathrm{flat}\mathrm{plates}.\text{.Math.}\mathrm{For}a\mathrm{long}\mathrm{cylinder}\left(\mathrm{like}\mathrm{most}\mathrm{antenna}\mathrm{tubes}\right),\mathrm{Cd}=1.2$

(42) Note the relationship between them is 1.2/2=0.6, not quite .

(43) 0$\begin{array}{c}\mathrm{Force},F=AP\mathrm{Cd}\\ =60.392\mathrm{lbs}\text{=>}60.392\mathrm{lbs}20\mathrm{blades}\\ =1,207.84\mathrm{lbs}\mathrm{Total}\mathrm{Force}.\end{array}$$\mathrm{Total}\mathrm{Force}\mathrm{at}{45}^{}\left(\mathrm{use}\mathrm{normal}\mathrm{to}\mathrm{blade}\right)=1,207.84\mathrm{lbs}0.7071=854.064\mathrm{lbs}\left(\mathrm{apply}\mathrm{normal}\mathrm{to}\mathrm{blade}\mathrm{surface}\right).$

(44) Using the above-force calculations applied to the rotor assembly 102 described above and using the below formulas yields the following power generation:

(45) Power Calculation Formulas:

(46) ${\mathrm{Torque}}_{\mathrm{inlb}}=\frac{{\mathrm{Power}}_{\mathrm{hp}}.Math.63025}{\mathrm{RPM}}+{\mathrm{Power}}_{\mathrm{hp}}=\frac{\mathrm{RPM}.Math.{\mathrm{Torque}}_{\mathrm{inlb}}}{63025}$$1.Math.\mathrm{hp}=745.7W$$\mathrm{RPM}=\frac{63025.Math.{\mathrm{Power}}_{\mathrm{hp}}}{{\mathrm{Torque}}_{\mathrm{inlb}}}$$\mathrm{centripetal}\mathrm{acceleration}$$a=\frac{v^2}{r}\mathrm{centripetal}\mathrm{acceleration}$$v=\sqrt{\mathrm{ar}}\mathrm{velocity}$$r=\frac{v^2}{a}\mathrm{radius}$$\mathrm{circular}\mathrm{velocity}$$v=\frac{2r}{T}\mathrm{circular}\mathrm{velocity}$$r=\frac{\mathrm{vT}}{2}\mathrm{radius}$$T=\frac{2r}{v}\mathrm{period}$

(47) TABLE-US-00001 Wind Speed Turbine No. Torque Torque Power Power (mph) Diameter Blades (in-lb) (ft-lb) RPM (hp) (watts) 2 12 20 79.453 6.621 6.928 0.009 6.513 12 12 20 2866.676 238.890 41.615 1.893 1411.496 25 12 20 12443.39 1036.949 86.701 17.118 12764.803 28 12 20 15678.75 1306.563 97.310 24.208 18051.787 40 12 20 31357.48 2613.123 112.378 55.913 41694.01721

A. Summary Comparison

(48) TABLE-US-00002 Wind Speed Turbine No. Torque Torque Power Power (mph) Diameter Blades (in-lb) (ft-lb) RPM (hp) (watts) 2 12 20 79.453 6.621 6.928 0.009 6.513 12 12 20 2866.676 238.890 41.615 1.893 1411.496 25 12 20 12443.39 1036.949 86.701 17.118 12764.803 28 12 20 15678.75 1306.563 97.310 24.208 18051.787 40 12 20 31357.48 2613.123 112.378 55.913 41694.01721

B. Efficiency Considerations

(49) Total efficiency loss is 11% (from +20%-15%-16% calculated below). This takes into account chamber improvements, otherwise it would be a 31% efficiency loss.

(50) i. Chamber Wind is collected and enters the chamber at the upper and lower inlets. The upper inlet feeds the forward-most turbines while the lower inlet feeds the aft-most turbines. The chamber is 360 adjustable to face the wind from any direction. The wind exits the chamber vertically onto the turbine blades.

(51) The above calculations demonstrate that there is a significant improvement in efficiency in the generation of power using the enclosed wind turbine with the stack effect and the air pressurization features of the wind scoop. Although the foregoing has shown, illustrated and described various embodiments and uses of the present invention, it will be apparent from the foregoing description that various changes, modifications and alterations to the systems described herein, and the uses thereof may be made by those skilled in the art without departing from the spirit of the present invention. Hence, the scope of the present invention should not be limited to the foregoing discussion but should be defined by the appended claims and all reasonable interpretations of scope thereof.