Multi-story structure for harvesting electric power from renewable sources

Abstract

A multi-story structure for harvesting electric power from an airflow may comprise a ground floor disposed at a lower-most part of the multi-story structure, and a power generator structure disposed at an upper-most part of the multi-story structure. The power generator structure may comprise a base mounted to the upper-most part of the multi-story structure, a vault-shaped frame connected to the base through a plurality of first vertical studs, and a third generator apparatus surrounded by a plurality of wind entrances in the vault-shaped frame. The third generator apparatus may comprise at least one first wind booster, at least one second wind booster, at least one first wind-guide plate, and at least one second wind-guide plate.

Description

Ref- 1403007MULTI STORY STRUCTURE FOR HARVESTING ELECTRIC POWER FROM RENEWABLE SOURCESTECHNICAL FIELD

[0001] The present disclosure generally relates to structures and turbine blades for generating energy, and more particularly to turbine rotor blades capable of harvesting energy from renewable energy sources such as wind power.BACKGROUND

[0002] The continuous expansion of human civilization has resulted in a substantial global demand for energy, particularly emphasizing clean energy sources. Wind turbines play a crucial role in the transition to cleaner energy, presenting numerous benefits and some significant challenges. The primary advantages of wind energy include its clean and renewable nature, as it generates electricity without burning fuel or emitting pollutants, thereby maintaining a low carbon footprint and contributing to the mitigation of climate change. The versatility of wind energy permits its utilization in various settings, such as rural areas, coastal communities, and islands with abundant wind resources.

[0003] Nonetheless, traditional wind power systems encounter issues related to intermittency, as their availability is contingent upon wind speed and direction, thereby impacting the stability and reliability of the grid. The effectiveness and overall performance of wind turbines are significantly affected by the design decisions regarding various blade characteristics. Therefore, there is need for structures and turbine rotor blades capable of increasing wind power capture to enhance efficiency and performance.SUMMARYRef- 1403007

[0004] This summary is intended to provide an overview of the subject matter of one or more exemplary embodiments, and is not intended to identify essential elements or key elements of the subject matter, nor is it intended to be used to determine the scope of the claimed implementations. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later. The proper scope of one or more exemplary embodiments may be ascertained from the claims set forth below in view of the detailed description below and the drawings.

[0005] In one general aspect, the present disclosure may describe an exemplary multistory structure utilized for harvesting electric power from an exemplary airflow. In an exemplary embodiment, an exemplary multi-story structure may comprise an exemplary ground floor disposed at a lower-most part of the exemplary multi-story structure. In an exemplary embodiment, an exemplary ground floor may comprise a plurality of exemplary airflow channels fluidly connected to one another through an exemplary corridor. In an exemplary embodiment, each respective airflow channel may comprise a plurality of exemplary lateral walls extended between an exemplary first gate and an exemplary second gate. In an exemplary embodiment, an exemplary first gate may have a greater area with respect to an exemplary second gate. In an exemplary embodiment, an exemplary first gate may introduce an exemplary airflow into an exemplary airflow channel and a plurality of exemplary lateral walls may conduct the exemplary airflow to an exemplary corridor through an exemplary second gate. In an exemplary embodiment, respective second gates of at least two airflow channels of a plurality of exemplary channels may be disposed opposite one another.

[0006] In an exemplary embodiment, an exemplary multi-story structure may comprise an exemplary power generator structure disposed at an upper-most part of the exemplary multistory structure. In an exemplary embodiment, the exemplary power generator structure mayRef- 1403007 comprise an exemplary base mounted to an upper-most part of an exemplary multi-story structure. In an exemplary embodiment, an exemplary base may comprise an exemplary inclined surface configured to conduct an exemplary airflow toward the exemplary power generator structure.

[0007] In an exemplary embodiment, the exemplary power generator structure may comprise an exemplary vault- shaped frame connected to an exemplary base through a plurality of exemplary first vertical studs. In an exemplary embodiment, an exemplary vault- shaped frame may comprise a plurality of exemplary first wind guides spanning over a plurality of exemplary first curved ribs. In an exemplary embodiment, each respective first curved rib may extend from a respective second vertical stud of a plurality of exemplary second vertical studs at one end and connected to the other first curved ribs at another end. In an exemplary embodiment, a plurality of exemplary first wind guides may be configured to conduct an exemplary airflow into an exemplary first generator assembly.

[0008] In an exemplary embodiment, an exemplary vault- shaped frame may comprise a plurality of exemplary second wind guides spanning over a plurality of second curved ribs. In an exemplary embodiment, each respective second curved rib may extend between a corresponding first vertical stud of a plurality of exemplary first vertical studs and the corresponding second vertical stud of a plurality of exemplary second vertical studs. In an exemplary embodiment, a plurality of exemplary second wind guides may be configured to conduct an exemplary airflow into an exemplary second generator assembly. In an exemplary embodiment, an exemplary inclined surface of an exemplary base of an exemplary power generator structure may conduct an exemplary airflow into an exemplary third generator apparatus.Ref- 1403007

[0009] In an exemplary embodiment, an exemplary vault- shaped frame may comprise a plurality of projecting lancet arches. In an exemplary embodiment, each respective projecting lancet arch may extend between two adjacent first vertical studs of a plurality of exemplary first vertical studs and connected to corresponding adjacent second wind guides of a plurality of exemplary second wind guides such that each respective projecting lancet arch defines a corresponding wind entrance of a plurality of exemplary wind entrances in the exemplary vaultshaped frame. In an exemplary embodiment, each respective projecting lancet arch may be mirror-symmetrical. In an exemplary embodiment, each respective projecting lancet arch may comprise an exemplary connecting edge configured to connect the projecting lancet arch to its adjacent second wind guides of a plurality of exemplary second wind guides. In an exemplary embodiment, each respective projecting lancet arch may comprise an exemplary free edge configured to conduct an exemplary airflow into a corresponding wind entrance of a plurality of exemplary wind entrances. In an exemplary embodiment, an exemplary portion of an exemplary free edge may be folded towards an exemplary connecting edge. In an exemplary embodiment, an exemplary folded portion of an exemplary free edge may be disposed at connections between an exemplary projecting lancet arch and two adjacent first vertical studs.

[0010] In an exemplary embodiment, an exemplary a power generator structure may comprise a third generator apparatus surrounded by a plurality of wind entrances. In an exemplary embodiment, an exemplary third generator apparatus may comprise at least one first wind booster, at least one second wind booster, at least one first wind-guide plate, and at least one second wind-guide plate. In an exemplary embodiment, at least one first wind booster may comprise an exemplary inclined surface spanning between an exemplary base edge, an exemplary first face, an exemplary straight lateral face, and an exemplary curved lateral face of the at least one first wind booster. In an exemplary embodiment, an exemplary base edgeRef- 1403007 may be disposed at a corresponding wind entrance of a plurality of exemplary wind entrances. In an exemplary embodiment, an exemplary first face may be disposed at an interior space of an exemplary vault- shaped frame.

[0011] In an exemplary embodiment, at least one second wind booster may comprise an exemplary inclined surface spanning between an exemplary base edge, an exemplary curved lateral face, and an exemplary two-portion straight lateral face of the at least one second wind booster. In an exemplary embodiment, an exemplary base edge of at least one second wind booster may be disposed at a corresponding wind entrance of a plurality of exemplary wind entrances. In an exemplary embodiment, an exemplary intersection of an exemplary curved lateral face and an exemplary two-portion straight lateral face of at least one second wind booster may be disposed at an interior space of an exemplary vault-shaped frame. In an exemplary embodiment, an exemplary curved lateral face of at least one second wind booster may be similar to an exemplary curved lateral face of at least one first wind booster. In an exemplary embodiment, an exemplary curved lateral face of at least one second wind booster may be disposed next to an exemplary curved lateral face of at least one first wind booster.

[0012] In an exemplary embodiment, at least one first wind-guide plate may comprise an exemplary straight plate extending along an exemplary straight lateral face of at least one first wind booster. In an exemplary embodiment, at least one second wind-guide plate may comprise an exemplary curved plate extending along the respective curved lateral faces of at least one first and second wind boosters.

[0013] In an exemplary embodiment, an exemplary third generator apparatus may comprise an exemplary rotor blade assembly capable of use with an exemplary rotating shaft. In an exemplary embodiment, an exemplary rotor blade assembly may comprise an exemplary rotor hub coaxially mounted on an exemplary rotating shaft. In an exemplary embodiment, anRef- 1403007 exemplary rotor blade assembly may comprise a plurality of exemplary blades connected to and arranged circumferentially around an exemplary rotor hub. In an exemplary embodiment, a plurality of exemplary blades may be arranged equally-spaced around an exemplary rotor hub. In an exemplary embodiment a plurality of exemplary blades may be connected to and arranged circumferentially around an exemplary rotor hub such that a respective pressure side of each respective blade faces towards an opposite direction relative to respective pressure sides of its two adjacent blades, while respective pressure sides of its two adjacent blades faces towards a similar direction.

[0014] In an exemplary embodiment, each respective blade of a plurality of exemplary blades may be disposed between an exemplary first and an exemplary second adjacent blades of the plurality of exemplary blades such that a respective first segment of an exemplary median edge of each respective blade of the plurality of exemplary blades may be connected to a corresponding median edge of its first adjacent blade and an exemplary second segment of the exemplary median edge of each respective blade of the plurality of exemplary blades may be connected to a corresponding median edge of its second adjacent blade. In an exemplary embodiment, respective leading edges of each respective blade of a plurality of exemplary blades may align with corresponding leading edges of its adjacent blades.

[0015] In an exemplary embodiment, each respective blade of a plurality of exemplary blades may be mirror-symmetrical with respect to an exemplary first symmetrical plane. In an exemplary embodiment, each respective blade of a plurality of exemplary blades may be mirror- symmetrical with respect to an exemplary second plane of symmetry. In an exemplary embodiment, an exemplary first plane of symmetry may extend between an exemplary hubside end and an exemplary tip-side end of a respective blade of a plurality of exemplary blades. In an exemplary embodiment, an exemplary second plane of symmetry may be perpendicularRef- 1403007 to an exemplary rotating shaft. In an exemplary embodiment, an exemplary first plane of symmetry may divide a respective blade of a plurality of exemplary blades into two similar portions. In an exemplary embodiment, an exemplary first and second plane of symmetries may divide a respective blade of a plurality of exemplary blades into four similar portions.

[0016] In an exemplary embodiment, each of respective similar portions may comprise an exemplary median edge disposed on an exemplary second plane of symmetry and connected to an exemplary rotor hub. In an exemplary embodiment, an exemplary median edge may comprise an exemplary first segment extending between an exemplary first end of the exemplary median edge and an exemplary first plane of symmetry.

[0017] In an exemplary embodiment, each of respective similar portions may comprise an exemplary trailing edge disposed farther from an exemplary rotor hub than an exemplary median edge. In an exemplary embodiment, each of respective similar portions may comprise an exemplary leading edge convergently extending from an exemplary first end of an exemplary median edge to an exemplary first end of an exemplary trailing edge.

[0018] In an exemplary embodiment, an exemplary leading edge may make an exemplary first angle, ai, with an exemplary median edge at an exemplary first end of the exemplary median edge. In an exemplary embodiment, an exemplary leading edge may make an exemplary second angle, 012, with an exemplary first plane of symmetry at an exemplary first end of an exemplary trailing edge. In an exemplary embodiment, an exemplary leading edge may make an exemplary third angle, as, with an exemplary first plane of symmetry at an exemplary first end of an exemplary median edge. In an exemplary embodiment, exemplary first, second, and third angles may be defined by the Inequality (1): 2 < as < ai (1)Ref- 1403007

[0019] In an exemplary embodiment, exemplary first, second, and third angles may be defined by the Inequalities (2) and (3):95°< ai < l l l° (2)4° < a2< a3< 26’ (3)

[0020] In an exemplary embodiment, an exemplary blade surface may extend between an exemplary median edge, an exemplary trailing edge, an exemplary leading edge, and an exemplary first plane of symmetry. In an exemplary embodiment, an exemplary blade surface may define an exemplary curved line disposed within an exemplary first plane of symmetry and extending from an exemplary mid-point of an exemplary median edge to an exemplary mid-point of an exemplary trailing edge.

[0021] In an exemplary embodiment, an exemplary curved line may comprise at least two portions. In an exemplary embodiment, at least two portions of an exemplary curve line may comprise an exemplary first inwardly arced portion extending from an exemplary median edge towards an exemplary first point on an exemplary curved line. In an exemplary embodiment, an exemplary first inwardly arced portion may comprise an exemplary first degree of curvature, Pi. In an exemplary embodiment, an exemplary second inwardly arced portion may extend from an exemplary trailing edge towards an exemplary second point on an exemplary curved line. In an exemplary embodiment, an exemplary second inwardly arced portion may comprise an exemplary second degree of curvature, p2. In an exemplary embodiment, an exemplary first degree of curvature and an exemplary second degree of curvature may be defined by the Inequality (4):Pi < P2 (4)

[0022] In an exemplary embodiment, an exemplary first degree and an exemplary second degree of curvatures corresponding to an exemplary first inwardly arced portion and anRef- 1403007 exemplary second inwardly arced portion of an exemplary curved line may be defined by the Inequality (5): l°< pi < p2< 47 (5)

[0023] In an exemplary embodiment, an exemplary curved line may comprise an exemplary third inwardly arced portion having an exemplary third degree of curvature, P3. In an exemplary embodiment, an exemplary third inwardly arced portion may tangentially extend between an exemplary first point and an exemplary second point on an exemplary curve line.

[0024] In an exemplary embodiment, an exemplary first segment of an exemplary median edge may comprise an exemplary first linear segment extending from an exemplary first end of an exemplary median edge to an exemplary middle part of an exemplary median edge such that an exemplary fourth angle is defined between an exemplary first linear segment and an exemplary first plane of symmetry. In an exemplary embodiment, an exemplary fourth angle may be defined by the Inequality (6):26° < 014 < 47 (6)

[0025] In an exemplary embodiment, an exemplary middle part of an exemplary median edge may have an exemplary curved segment. In an exemplary embodiment, an exemplary curved segment may extend between an exemplary first linear segment and an exemplary first plane of symmetry. In an exemplary embodiment, an exemplary curved segment may be tangent to an exemplary first linear segment. In an exemplary embodiment, an exemplary median edge may make an exemplary fifth angle, 05, with an exemplary line which is perpendicular to an exemplary first plane of symmetry and passes through an exemplary first end of an exemplary median edge. In an exemplary embodiment, an exemplary fifth angle may be defined by the Inequality (7):05 > 51° (7)Ref- 1403007

[0026] This Summary may introduce a number of concepts in a simplified format; the concepts are further disclosed within the “Detailed Description” section. This Summary is not intended to configure essential / key features of the claimed subject matter, nor is intended to limit the scope of the claimed subject matter.BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The novel features which are believed to be characteristic of the present disclosure, as to its structure, organization, use and method of operation, together with further objectives and advantages thereof, will be better understood from the following drawings in which a presently preferred embodiment of the present disclosure will now be illustrated by way of example. It is expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended as a definition of the limits of the present disclosure. Embodiments of the present disclosure will now be described by way of example in association with the accompanying drawings in which:

[0028] FIG. 1A illustrates a perspective view of an exemplary multi-story structure, consistent with one or more embodiments of the present disclosure;

[0029] FIG. IB illustrates a perspective view of exemplary airflow channels of an exemplary ground floor, consistent with one or more embodiments of the present disclosure;

[0030] FIG. 1C illustrates a cross-sectional view of an exemplary ground floor along plane A-A depicted in FIG. IB, consistent with one or more embodiments of the present disclosure;

[0031] FIG. 2A illustrates a perspective view of an exemplary power generator structure, consistent with one or more embodiments of the present disclosure;

[0032] FIG. 2B illustrates a perspective view of an exemplary vault-shaped frame, consistent with one or more embodiments of the present disclosure;Ref- 1403007

[0033] FIG. 3A illustrates a cross-sectional view of an exemplary power generator structure along plane B-B depicted in FIG. 2A, consistent with one or more embodiments of the present disclosure;

[0034] FIG. 3B illustrates a perspective view of an exemplary combination of a plurality of second wind guides and a plurality of projecting lancet arches, consistent with one or more embodiments of the present disclosure;

[0035] FIG. 3C illustrates a side view of an exemplary projecting lancet arch, consistent with one or more embodiments of the present disclosure;

[0036] FIG. 4A illustrates a cross-sectional view of an exemplary power generator structure along plane C-C depicted in FIG. 2A, consistent with one or more embodiments of the present disclosure;

[0037] FIG. 4B illustrates a perspective view of exemplary first and second wind-guide plates, consistent with one or more embodiments of the present disclosure;

[0038] FIG. 4C illustrates a side view of an exemplary second wind-guide plate, consistent with one or more embodiments of the present disclosure;

[0039] FIG. 5A illustrates a perspective view of exemplary first and second wind boosters, consistent with one or more embodiments of the present disclosure;

[0040] FIG. 5B illustrates a top view of an exemplary first wind booster, consistent with one or more embodiments of the present disclosure;

[0041] FIG. 5C illustrates a top view of an exemplary second wind booster, consistent with one or more embodiments of the present disclosure;

[0042] FIG. 5D illustrates a side view of an exemplary second wind booster, consistent with one or more embodiments of the present disclosure;Ref- 1403007

[0043] FIG. 6A illustrates a schematic view of an exemplary arrangement of an exemplary rotor blade assembly of an exemplary third generator apparatus, consistent with one or more embodiments of the present disclosure;

[0044] FIG. 6B illustrates a perspective view of an exemplary half-blade, consistent with one or more embodiments of the present disclosure;

[0045] FIG. 6C illustrates a side view of an exemplary blade, consistent with one or more embodiments of the present disclosure;

[0046] FIG. 6D illustrates a front view of an exemplary blade, consistent with one or more embodiments of the present disclosure;

[0047] FIG. 6E illustrates a cross-sectional view of an exemplary blade along plane D- D depicted in FIG. 6C, consistent with one or more embodiments of the present disclosure; and

[0048] FIG. 7 illustrates a schematic view of another exemplary arrangement of an exemplary rotor blade assembly, consistent with one or more embodiments of the present disclosure.DETAILED DESCRIPTION

[0049] In the following detailed description, numerous specific details are set forth by way of examples to provide a thorough understanding of the relevant teachings related to the exemplary embodiments. However, it should be apparent that the present teachings may be practiced without such details. In other instances, well known methods, procedures, components, and / or circuitry have been described at a relatively high-level, without detail, in order to avoid unnecessarily obscuring aspects of the present teachings.

[0050] The following detailed description is presented to enable a person skilled in the art to make and use the methods and devices disclosed in one or more exemplary embodiments of the present disclosure. For purposes of explanation, specific nomenclature is set forth toRef- 1403007 provide a thorough understanding of the present disclosure. However, it will be apparent to one skilled in the art that these specific details are not required to practice the disclosed exemplary embodiments. Descriptions of specific exemplary embodiments are provided only as representative examples. Various modifications to the exemplary implementations will be plain to one skilled in the art, and the general principles defined herein may be applied to other implementations and applications without departing from the scope of the present disclosure. The present disclosure is not intended to be limited to the implementations shown, but is to be accorded the widest possible scope consistent with the principles and features disclosed herein.

[0051] Referring to the figures, FIG. 1A illustrates a perspective view 100 of an exemplary multi-story structure 112, FIG. IB illustrates a perspective view 102 of exemplary airflow channels (e.g., airflow channels 122a-122c) of an exemplary ground floor 114, and FIG. 1C illustrates a cross-sectional view 104 of an exemplary ground floor 114 along plane A-A depicted in FIG. IB, consistent with one or more embodiments of the present disclosure. In an exemplary embodiment, multi- story structure 112 may comprise an exemplary ground floor 114. In an exemplary embodiment, ground floor 114 may be disposed at a lower-most part of multi-story structure 112, as shown in FIG. 1A and IB. In an exemplary embodiment, multi-story structure 112 may comprise an exemplary roof 116. In an exemplary embodiment, roof 116 may be an upper-most part of multi-story structure 112.

[0052] In an exemplary embodiment, an exemplary multi-story structure 112 may comprise one or more exemplary stories or floors (e.g., stories 118a and 118b). In an exemplary embodiment, there are exemplary wind passages between various stories (e.g., stories 118a and 118b). In an exemplary embodiment, different equipment may be mounted in each story (e.g., stories 118a and / or 118b) to capture energy from renewable sources of energy, such as wind, solar energy, etc. In an exemplary embodiment, different equipment may comprise anyRef- 1403007 apparatus or devices utilized to harness wind energy and convert it into electrical energy or any other type of energy. In an exemplary embodiment, different equipment may comprise any apparatus or devices utilized to transform solar energy into electrical energy or any other type of energy.

[0053] In an exemplary embodiment, with continued reference to FIGs. 1A-C, multi-story structure 112 may comprise an exemplary power generator structure 120. In an exemplary embodiment, power generator structure 120 may be disposed at an upper-most part of multistory structure 112 to be able to harvest more energy from renewable sources such as wind and / or sun. In an exemplary embodiment, power generator structure 120 may be mounted on roof 116.

[0054] In an exemplary embodiment, with continued reference to FIGs. 1A-C, ground floor 114 may comprise a plurality of exemplary airflow channels 122a, 122b, 122c, and 122d fluidly connected to one another through an exemplary corridor 128. In an exemplary embodiment, each respective airflow channel (e.g., airflow channels 122a-122d) may comprise a plurality of exemplary lateral walls (e.g., lateral walls 126a, 126b, 127a, and 127b of airflow channel 122a; lateral walls 126c and 126d of airflow channel 122b; lateral walls 126e and 126f of airflow channel 122c; lateral walls 126g and 126h of airflow channel 122d) extended between an exemplary first gate (e.g., first gates 124a, 124b, 124c, and 124d) and an exemplary second gate (e.g., second gates 124e, 124f, 124g, 124h). It should be appreciated that every airflow channel may comprise at least three lateral walls which only two of them for each airflow channel is shown in FIG. 1C.

[0055] In an exemplary embodiment, an exemplary airflow may pass through first gate 124a of first channel 122a and be conducted by lateral walls 126a, 126b, 127a, and 127b towards second gate 124e. In an exemplary embodiment, corridor 128 may connect secondRef- 1403007 gates (e.g., second gates 124e, 124f, 124g, 124h) of each airflow channel (e.g., airflow channels 122a-d) to allow an exemplary airflow or wind flow through various airflow channels. In an exemplary embodiment, an exemplary airflow may be conducted through airflow channel 122a and then pass through at least one of airflow channels 122b-d. In an exemplary embodiment, first gates (e.g., first gates 124a-d) may have a greater area with respect to corresponding second gates (e.g., second gates 124e-h). In an exemplary embodiment, respective second gates (e.g., second gates 124e and 124g or second gates 124f and 124h) of at least two airflow channels (e.g., airflow channels 122a and 122c or 122b and 122d) of a plurality of exemplary channels may be disposed opposite one another to allow an exemplary airflow or wind pass through ground floor 114 more easily. In an exemplary embodiment, ground floor 114 may introduce an exemplary airflow into different stories of multi- story structure to help ventilation and / or generating power.

[0056] In an exemplary embodiment, corridor 128 may be an exemplary cube or an exemplary cuboid and second gates (e.g., second gates 124e-h) are disposed on its faces. In an exemplary embodiment, lateral walls (e.g., lateral walls 126a-h, 127a-b) may comprise any geometrical and physical features which cause an exemplary airflow or wind to flow through ground floor 114 and / or different stories of multi-story structure. In an exemplary embodiment, lateral walls (e.g., lateral walls 126a-h, 127a-b) may comprise curved surfaces which their concave sides face towards the inside of airflow channels. In an exemplary embodiment, lateral walls (e.g., lateral walls 126a-h, 127a-b) may comprise sloped surfaces to conduct airflow through ground floor 114 and / or different floors of multi-story structure.

[0057] FIG. 2A illustrates a perspective view 200 of an exemplary power generator structure 120, FIG. 2B illustrates a perspective view 202 of an exemplary vault-shaped frame 220, FIG. 3A illustrates a cross-sectional view 300 of an exemplary power generator structureRef- 1403007120 along plane B-B depicted in FIG. 2A, FIG. 3B illustrates a perspective view 302 of an exemplary combination of a plurality of second wind guides (e.g., second wind guides 316a- d) and a plurality of projecting lancet arches (e.g., projecting lancet arches 138a-h), and FIG. 3C illustrates a side view 304 of an exemplary projecting lancet arch 318, consistent with one or more embodiments of the present disclosure. In an exemplary embodiment, power generator structure 120 may comprise an exemplary base 212 mounted on an upper-most part of an exemplary multi-story structure (e.g., roof 116). In an exemplary embodiment, base 212 may comprise an exemplary inclined surface 212a configured to conduct an exemplary airflow towards power generator structure 120.

[0058] In an exemplary embodiment, power generator structure may comprise an exemplary first generator apparatus 214, an exemplary second generator apparatus 216, and an exemplary third generator apparatus 218. In an exemplary embodiment, all three generator apparatuses (i.e., first, second, and third generator apparatuses) may be disposed inside an exemplary vault-shaped frame 220 (shown in FIG. 2B). In an exemplary embodiment, in order to enhance harnessing of wind energy, several exemplary wind guides (e.g., a plurality of exemplary first wind guides 219) and wind boosters maybe utilized.

[0059] In an exemplary embodiment, with reference to FIG. 2A, power generator structure 120 may comprise vault-shaped frame 220 connected to base 212 through a plurality of exemplary first vertical studs (e.g., first vertical studs 228a and 228b). In an exemplary embodiment, vault- shaped frame 220 may comprise a plurality of exemplary first wind guides 219 spanning over a plurality of exemplary first curved ribs (e.g., first curved ribs 222a and 222b). In an exemplary embodiment, first wind guides 219 may be configured to conduct an exemplary airflow into first generator assembly 214. In an exemplary embodiment, each respective first curved rib (e.g., first curved rib 222a and 222b) may extend from a respectiveRef- 1403007 second vertical stud (e.g., second vertical stud 230a and 230b, respectively) of a plurality of exemplary second vertical studs at one end and connected to the other first curved ribs at another end. In an exemplary embodiment, a plurality of third vertical studs (e.g., third vertical studs 232a and 232b) may be mounted on corresponding first curved ribs (e.g., first curved ribs 222a and 222b, respectively).

[0060] In an exemplary embodiment, referring to FIGs. 2A-3B, a plurality of first, second, and third vertical studs (e.g., first, second, and third vertical studs 228a-b, 230a-b, 232a-b) may be exemplary pillars of exemplary wind entrances (e.g., wind entrances 312a- 312h) which is created for first, second, and third generator apparatuses 214, 216, 218 to permit an exemplary airflow or wind reach corresponding rotor blade assemblies of theses apparatuses (e.g. an exemplary rotor blade assembly 310 shown in FIG. 3A), while protecting them from rain or any harsh phenomenon. In an exemplary embodiment, an exemplary access door 314 may be included in base 212 to facilitate maintenance of power generator structure 120. In an exemplary embodiment, inclined surface 212a of base 212 may conduct an exemplary airflow into third generator apparatus 218.

[0061] In an exemplary embodiment, with reference to FIGs. 2A-3B, vault-shaped frame 220 may comprise a plurality of exemplary second wind guides (e.g., second wind guides 316a- 316h) spanning over a plurality of second curved ribs (e.g., second curved ribs 224a and 224b). In an exemplary embodiment, each respective second curved rib (e.g., second curved ribs 224a and 224b) may extend between a corresponding first vertical stud (e.g., first vertical studs 228a and 228b, respectively) of a plurality of exemplary first vertical studs and a corresponding second vertical stud (e.g., second vertical studs 230a and 230b, respectively) of a plurality of exemplary second vertical studs. In an exemplary embodiment, second wind guides (e.g.,Ref- 1403007 second wind guides 316a-316h) may be configured to conduct an exemplary airflow into second generator apparatus 216.

[0062] In an exemplary embodiment, with continued reference to FIGs. 2A-3C, vaultshaped frame 220 may comprise a plurality of projecting lancet arches (e.g., projecting lancet arches 318a-318h). In an exemplary embodiment, projecting lancet arches (e.g., projecting lancet arches 318a-318h) may be mounted on a plurality of joists (e.g., joists 226a, 226b). In an exemplary embodiment, each joist of the plurality of joists (e.g., joists 226a, 226b) may be horizontally mounted between two adjacent first vertical studs of the plurality of first vertical studs. It should be appreciated that “horizontally” or “horizontal” and “vertically” or “vertical” may refer to two substantially orthogonal directions.

[0063] In an exemplary embodiment, with continued reference to FIGs. 2A-3C, each respective projecting lancet arch (e.g., projecting lancet arche 318a) may be connected to corresponding adjacent second wind guides (e.g., second wind guides 316a and 316b) of a plurality of exemplary second wind guides (e.g., second wind guides 316a-316h) such that each respective projecting lancet arch (e.g., projecting lancet arche 318a) defines a corresponding wind entrance (e.g., wind entrance 312a) of a plurality of exemplary wind entrances (e.g., wind entrances 312a-312h) in vault-shaped frame 220.

[0064] In an exemplary embodiment, with further reference to FIGs. 3A-3C, each respective projecting lancet arch (e.g., projecting lancet arch 318, 318a-318h) may be mirror- symmetrical with respect to its exemplary plane of symmetry (e.g., projecting lancet arch 318b may be mirror- symmetrical with respect to its exemplary plane of symmetry 319b). In an exemplary embodiment, each respective projecting lancet arch (e.g., projecting lancet arch 318, 318a-318h) may comprise an exemplary connecting edge 324 configured to connect the projecting lancet arch to its adjacent second wind guides of a plurality of exemplary secondRef- 1403007 wind guides (e.g., second wind guides 316a-316h). In an exemplary embodiment, projecting lancet arches and second wind guides may create an exemplary integrated body, as shown in FIG. 3B.

[0065] In an exemplary embodiment, with further reference to FIGs. 3A-3C, each respective projecting lancet arch (e.g., projecting lancet arch 318, 318a-318h) may comprise an exemplary free edge 322 configured to conduct an exemplary airflow into a corresponding wind entrance of a plurality of exemplary wind entrances (e.g., wind entrances 312a-312h). In an exemplary embodiment, an exemplary portion 322a of free edge 322 may be folded towards connecting edge 324. In an exemplary embodiment, an exemplary folded portion 322a of free edge 322 may be disposed near or at connections between projecting lancet arch 318 and its two adjacent first vertical studs. In an exemplary embodiment, an exemplary unfolded portion 322b of free edge 322 may be spanned between an exemplary plane of symmetry 319 and folded portion 322a. In an exemplary embodiment, projecting lancet arch 318 may be mirror- symmetrical with respect to plane of symmetry 319. In an exemplary embodiment, folded portion 322a of free edge 322 may conduct an exemplary airflow or wind towards its adjacent second wind guide. In an exemplary embodiment, unfolded portion 322b of free edge 322 of projecting lancet arch 318 may conduct an exemplary airflow or wind towards corresponding wind entrance beneath projecting lancet arch 318.

[0066] FIG. 4A illustrates a cross-sectional view 400 of an exemplary power generator structure 120 along plane C-C depicted in FIG. 2A, FIG. 4B illustrates a perspective view 402 of exemplary first and second wind-guide plates 412a-412d and 414a-414d, and FIG. 4C illustrates a side view 404 of an exemplary second wind-guide plate 414, consistent with one or more embodiments of the present disclosure.Ref- 1403007

[0067] In an exemplary embodiment, with reference to FIGs. 4A-4C, third generator apparatus 218 may be surrounded by a plurality of wind entrances (e.g., wind entrances 312a- 312h). In an exemplary embodiment, third generator apparatus 218 may comprise at least one first wind-guide plate (e.g., first wind guide plate 412a, 412b, 412c, and / or 412d), at least one second wind-guide plate (e.g., second wind guide plate 414a, 414b, 414c, and / or 414d), at least one first wind booster (e.g., first wind booster 416a, 416b, 416c, or 416d), and at least one second wind booster (e.g., second wind booster 418a, 418b, 418c, and / or 418d). In an exemplary embodiment, an exemplary arrangement of wind boosters and wind-guide plates may facilitate conducting an exemplary airflow or wind from various wind entrances (e.g., wind entrances 312a-312h) into an exemplary interior space 410 of vault-shaped frame 220. In an exemplary embodiment, as shown in FIG. 4A, an exemplary arrangement of wind boosters and wind-guide plates may facilitate conducting of an exemplary airflow or wind from various wind entrances (e.g., wind entrances 312a-312h) into third generator apparatus 218.

[0068] In an exemplary embodiment, with reference to FIGs. 4A-4B, a plurality of exemplary first wind-guide plates 412a-412d are illustrated. In an exemplary embodiment, at least one first wind-guide plate (e.g., first wind-guide plate 412a, 412b, 412c, and / or 412d) may comprise an exemplary straight plate 412. In an exemplary embodiment, straight plate may span between exemplary five sides comprising an exemplary oblique side 420, two exemplary pairs of perpendicular sides including first pair 422a-422b and second pair 423a- 423b. In an exemplary embodiment, sides 422a and 422b of first pair may be parallel with one another. In an exemplary embodiment, sides 423a and 423b of second pair may be parallel with one another. In an exemplary embodiment, one side of second pair (e.g., side 423a as shown in FIG. 4B) may be connected to a corresponding first vertical stud of the plurality of vertical studs (e.g., first vertical studs 228a and 228b). In an exemplary embodiment, one sideRef- 1403007 of second pair (e.g., side 423b as shown in FIG. 4B) may be disposed in interior space of vaultshaped frame 220.

[0069] In an exemplary embodiment, with continued reference to FIGs. 4A-4B, oblique side 420 may extend between two perpendicular sides (e.g., between sides 422b and 423a, as shown in FIG. 4B). In an exemplary embodiment, an exemplary gap may be defined between oblique side 420 and vault- shaped frame 220 to allow airflow or wind pass thereby. In an exemplary embodiment, one side of first pair 422a-422b or second pair 423a-423b may be connected to base 212 (e.g., connecting side 422a as shown in FIG. 4B).

[0070] In an exemplary embodiment, with further reference to FIG. 4C, at least one second wind-guide plate (e.g., second wind guide plate 414a, 414b, 414c, and / or 414d) may comprise an exemplary curved plate 414. In an exemplary embodiment, curved plate 414 may span between an exemplary base edge 426, an exemplary rotor side 428, an exemplary free side 430, and an exemplary semi-circular edge 432. In an exemplary embodiment, base edge 426 may be connected to base 212. In an exemplary embodiment, rotor side 428 may be disposed in interior space 410 of vault-shaped frame 220. In an exemplary embodiment, free side 430 may be connected to a corresponding first vertical stud of the plurality of vertical studs (e.g., vertical studs 228a and 228b). In an exemplary embodiment, respective sides of first and second wind-guide plates which are connected to corresponding first vertical studs may be connected to a pair of adjacent first vertical studs, for defining a passage between corresponding wind entrance and interior space 410 of vault-shaped frame 220 (in FIG. 4A, a plurality of curved arrows represent airflow or wind conducted through these passages). In an exemplary embodiment, an exemplary curved portion 430a of free side 430 and semi-circular edge 432 may define an exemplary gap between corresponding second wind-guide plate and vault-shaped frame 220 to allow airflow or wind pass thereby.Ref- 1403007

[0071] In an exemplary embodiment, with continued reference to FIGs. 4A-4C, curved plate 414 may comprise an exemplary concave section 424. In an exemplary embodiment, concave section 424 of curved plate 414b of corresponding second wind-guide plate (e.g., second wind-guide plates 414a-414d) may be positioned substantially nearer to an exemplary side of an adjacent straight plate, wherein the exemplary side is disposed in interior space 410 of vault-shaped frame 220. For example, an exemplary concave section of second wind-guide plate 414c is positioned substantially nearer to side 423b of straight plate 412, wherein side 423b of straight plate 412 is disposed in interior space 410 of vault-shaped frame 220.

[0072] FIG. 5A illustrates a perspective view 500 of exemplary first and second wind boosters 416a-416d and 418a-418d, FIG. 5B illustrates a top view 502 of an exemplary first wind booster 416, FIG. 5C illustrates a top view 504 of an exemplary second wind booster 418, and FIG. 5D illustrates a side view 506 of an exemplary second wind booster 418, consistent with one or more embodiments of the present disclosure. In an exemplary embodiment, at least one first wind booster (e.g., first wind boosters 416, 416a-416d) may comprise an exemplary inclined surface 512 spanning between an exemplary base edge 516, an exemplary first face 514, an exemplary straight lateral face 518, and an exemplary curved lateral face 520. In an exemplary embodiment, base edge 516 may be disposed at a corresponding wind entrance of a plurality of exemplary wind entrances (e.g., wind entrances 312a-312h). In an exemplary embodiment, first face 514 may be disposed at interior space 410 of vault-shaped frame 220.

[0073] In an exemplary embodiment, at least one first wind booster may be disposed between corresponding first and second wind-guide plates. For example, as shown in FIG. 4A, first wind booster 416a may be disposed between first wind-guide plate 412a and second windguide plate 414a. in an exemplary embodiment, first wind boosters (e.g., first wind boostersRef- 1403007416a-416d) may be evenly spaced apart from each other and arranged in a circular pattern, as shown in FIGs. 4A and 5A. In an exemplary embodiment, each first wind booster (e.g., first wind boosters 416a-416d) along corresponding first and second wind-guide plates may be capable of conducting an exemplary airflow or wind from corresponding wind entrance into interior space 410 of vault-shaped frame 220, wherein an exemplary rotor blade assembly (e.g., rotor blade assembly 310, shown in FIG. 3A) is disposed in order to enhance the pressure and / or flow rate of the exemplary flow which interacts with the exemplary rotor blade assembly (e.g., rotor blade assembly 310, shown in FIG. 3A).

[0074] In an exemplary embodiment, with respect to FIGs. 5A and 5C-5D, at least one second wind booster (e.g., second wind booster 418, 418a-418d) may comprise an exemplary inclined surface 522 spanning between an exemplary base edge 526, an exemplary curved lateral face 528, and an exemplary two-portion straight lateral face 530. In an exemplary embodiment, base edge 526 of second wind booster 418 may be disposed at a corresponding wind entrance of a plurality of exemplary wind entrances (e.g., wind entrances 312a-312h). In an exemplary embodiment, an exemplary intersection 524 of curved lateral face 528 and two- portion straight lateral face 530 of second wind booster 418 may be disposed at interior space 410 of vault-shaped frame 220. In an exemplary embodiment, two-portion straight lateral face 530 may comprise first portion 530a and second portion 530b.

[0075] In an exemplary embodiment, with reference to FIGs. 4A-5D, first and second wind boosters may be arranged around interior space 410 of vault-shaped frame 220 such that a pair of first and second wind boosters (e.g., a pair of first and second wind boosters 416a and 418a, or 416b and 418b, or 416c and 418c, or 416d and 418d, as shown in FIGs. 4A and 5A) are disposed next to one another. In an exemplary embodiment, second portion 530b of corresponding second wind booster of a pair of first and second wind boosters may align withRef- 1403007 straight lateral face 518 of corresponding first wind booster 416 of another pair of first and second wind boosters which is disposed next to the pair of first and second wind boosters. In an exemplary embodiment, at least one first wind-guide plate may extend along straight lateral face (e.g., straight lateral face 518) of corresponding first wind booster (e.g., first wind booster 416, and / or 416a-416d). In an exemplary embodiment, a first wind-guide plate may extend along straight lateral face of corresponding first wind booster of a pair of first and second wind boosters and a second portion of two-portion straight lateral face of second wind booster of another pair of first and second wind boosters. For example, as shown in FIG. 4A, first windguide plate 412a extends along straight lateral face of first wind booster 416a and second portion of two-portion straight lateral face of second wind booster 418d, wherein first wind booster 416a and second wind booster 418d belong to different pair of first and second wind boosters.

[0076] In an exemplary embodiment, with reference to FIGs. 4A-5D, curved lateral face (e.g., curved lateral face 528) of at least one second wind booster (e.g., second wind boosters 418, and / or 418a-418d) may be similar to curved lateral face (e.g., curved lateral face 520) of at least one first wind booster (e.g., first wind booster 416, and / or 416a-416d). In an exemplary embodiment, curved lateral face (e.g., curved lateral face 528) of at least one second wind booster (e.g., second wind boosters 418, and / or 418a-418d) may be disposed next to curved lateral face (e.g., curved lateral face 520) of at least one first wind booster (e.g., first wind booster 416, and / or 416a-416d), in a pair of first and second wind boosters. In an exemplary embodiment, a second wind-guide plate may be disposed between a first wind booster and a second wind booster in a same pair of first and second wind boosters. For example, as shown in FIG. 4A, second wind-guide plate 414a may be disposed between and along first wind booster 416a and second wind booster 418a. In an exemplary embodiment, second wind-guideRef- 1403007 plate 414a, curved lateral face of first wind booster 416a, and curved lateral face of second wind booster 418a may have same degree of curvature.

[0077] FIG. 6A illustrates a schematic view 600 of an exemplary arrangement of an exemplary rotor blade assembly 611 of an exemplary third generator apparatus 218, FIG. 6B illustrates a perspective view 602 of an exemplary half-blade, FIG. 6C illustrates a side view 604 of an exemplary blade, FIG. 6D illustrates a front view 606 of an exemplary blade 612, and FIG. 6E illustrates a cross-sectional view 608 of an exemplary blade along plane D-D depicted in FIG. 6C, consistent with one or more embodiments of the present disclosure. In an exemplary embodiment, third generator apparatus 218 may comprise an exemplary rotor blade assembly 611 capable of use with an exemplary rotating shaft 614. In an exemplary embodiment, rotor blade assembly 611 may comprise an exemplary rotor hub 628 coaxially mounted on rotating shaft 614. In an exemplary embodiment, rotor blade assembly 611 may comprise a plurality of exemplary blades connected to and arranged circumferentially around rotor hub 628. In an exemplary embodiment, a plurality of exemplary blades (e.g., rotor blade 612) may be arranged equally- spaced around rotor hub 628. In an exemplary embodiment, each rotor blade (e.g., rotor blade 612) may be mirror-symmetrical with respect to an exemplary first plane of symmetry (e.g., first plane of symmetry 601) and an exemplary second plane of symmetry (e.g., second plane of symmetry 603).

[0078] In an exemplary embodiment, with reference to FIG. 6A, rotor blade assembly 611 may employ rotating shaft 614 which is connected to an exemplary gearbox 616 for generating various speeds and torques as rotor blade assembly 611 rotates about rotating shaft 614. In an exemplary embodiment, gearbox 616 may be connected to an exemplary generator 618 through an exemplary secondary shaft 615 for producing electrical energy from rotation of rotor blade assembly 611 about rotating shaft 614.Ref- 1403007

[0079] In one or more exemplary embodiments, as shown in FIG. 6A, an exemplary coordinate system 620 for rotor blade assembly 611 is represented by three mutually perpendicular exemplary axes 622, 624, and 626. In an exemplary embodiment, an exemplary vertical axis 622, also called rotational axis, or z-axis, aligns with rotating shaft 614. An exemplary radial axis 624, also called axis of symmetry, or r-axis, is an axis drawn from an exemplary backside to an exemplary pressure side of the exemplary blade of rotor blade assembly 611. In an exemplary embodiment, an exemplary transverse axis 626 is also called e-axis, which is perpendicular to both z-axis and r-axis.

[0080] In an exemplary embodiment, with continued reference to FIGs. 6A-6B, respective second plane of symmetry may divide corresponding rotor blade (e.g., rotor blade 612) into two substantially similar portions (e.g., first portion 612a and second portion 612b). In an exemplary embodiment, each one of first and second portions 612a and 612b (i.e., half blades 612a and 612b) may comprise an exemplary trailing edge 630, an exemplary median edge 632, at least two leading edges comprising first leading edge 636a and second leading edge 636b, and an exemplary blade surface 637. In an exemplary embodiment, median edge 632 may be disposed on second plane of symmetry 603. In an exemplary embodiment, blade surface 637 may define an exemplary curved line 638 disposed on first plane of symmetry 601. In an exemplary embodiment, curved line 638 may extend between trailing edge 630 and median edge 632. In an exemplary embodiment, curved line 638 may extend from an exemplary mid-point 634 of median edge 632 to an exemplary mid-point of trailing edge 630. In an exemplary embodiment, curved line 638 may intersect with median edge 632 at an exemplary mid-point 634 thereof. In an exemplary embodiment, mid-point 634 of median edge 632 may be an exemplary transition point. In an exemplary embodiment, mid-point 634 may be an exemplary apex of median edge 632. In an exemplary embodiment, blade surface 637Ref- 1403007 may separate blade 612 into an exemplary back side 640 and pressure side 642. In an exemplary embodiment, pressure side 642 is an exemplary side of blade 612 which is capable of effectively capturing an exemplary airflow or wind to produce an exemplary torque required for generating rotational motion of rotor blade assembly 611.

[0081] In an exemplary embodiment, with continued reference to FIGs. 6A-6B, transition or mid-point 634 of median edge 632 may be connected to rotor hub 628 at an exemplary hub-side 646 of blade 612. In an exemplary embodiment, median edge 632 may span between an exemplary first end 633a and second end 633b among which transition or mid-point 634 is disposed. In an exemplary embodiment, trailing edge 630 may be disposed farther from rotor hub 628 than median edge 632. In an exemplary embodiment, trailing edge 630 may be disposed at an exemplary tip-side 648 of blade 612. In an exemplary embodiment, trailing edge 630 may be extend between an exemplary first end 630a and an exemplary second end 630b thereof. In an exemplary embodiment, first leading edge 636a may extend between first end 630a of trailing edge 630 and first end 633a of median edge 632. In an exemplary embodiment, second leading edge 636b may extend between second end 630b of trailing edge 630 and second end 633b of median edge 632. In an exemplary embodiment, first leading edge 636a and second leading edge 636b may converge towards each other at trailing edge 630, i.e., first and second leading edges 636a and 636b may convergently extend from first and second ends 633a and 633b of median edge to first and end of trailing edge 630a and 630b, respectively. In an exemplary embodiment, first and second leading edges 636a and 636b may deviate further from first plane of symmetry 601 compared to their deviation from it at median edge 632.

[0082] In an exemplary embodiment, with further reference to FIGs. 6A-6C, each respective blade 612 of rotor blade assembly 611 may span between an exemplary hub-sideRef- 1403007 end 646 and an exemplary tip- side end 648. In an exemplary embodiment, each respective blade 612 of rotor blade assembly 611 may be mirror-symmetrical with respect to first symmetrical plane 601. In an exemplary embodiment, each respective blade 612 of a plurality of exemplary blades may be mirror-symmetrical with respect to second plane of symmetry 603. In an exemplary embodiment, first plane of symmetry 601 may extend between hub- side end 646 and tip-side end 648 of the respective blade 612. In an exemplary embodiment, second plane of symmetry 603 may be perpendicular to rotating shaft 614. In an exemplary embodiment, first plane of symmetry 601 may divide the respective blade 612 of rotor blade assembly 611 into two similar portions. In an exemplary embodiment, second plane of symmetry 603 may bisect the respective blade 612 into two similar portions 612a and 612b. In an exemplary embodiment, first and second plane of symmetries 644 and 660 may divide the respective blade 612 of a plurality of exemplary blades into four substantially similar portions 6121a, 6121b, 6122a, and 6122b.

[0083] In an exemplary embodiment, blade surface 637 in one portion of four similar portions (e.g., similar portions 6121a, 6121b, 6122a, and 6122b) may extend between median edge 632, trailing edge 630, leading edge (leading edges 636a and / or 636b), and first plane of symmetry 601. In an exemplary embodiment, an exemplary blade surface may define an exemplary curved line disposed within an exemplary first plane of symmetry and extending from an exemplary mid-point of an exemplary median edge to an exemplary mid-point of an exemplary trailing edge.

[0084] In an exemplary embodiment, with further reference to FIG. 6C-6D, an exemplary tangent 650 of corresponding leading edge (leading edge 636a or 636b) may define an exemplary first angle, ai, with median edge 632 which is disposed on second plane of symmetry 603. In an exemplary embodiment, each respective leading edge (leading edge 636aRef- 1403007 or 636b) of corresponding blade may make an exemplary second angle, 012, with first plane of symmetry 601 at first end 630a of trailing edge 630 (e.g., second angle is an angle between an exemplary line 662, which is tangent to first leading edge 636a at first end 630a of trailing edge 630, and first plane of symmetry). In an exemplary embodiment, each respective leading edge (leading edge 636a or 636b) of corresponding blade may make an exemplary third angle, 013, with first plane of symmetry 601 at first end 633a of median edge 632 (e.g., third angle is an angle between an exemplary line 664, which is tangent to first leading edge 636a at first end 630a of median edge 632, and first plane of symmetry).

[0085] In an exemplary embodiment, second angle, 012, may be greater than 4 degrees (i.e., 4° < 012). In an exemplary embodiment, second angle, 012, may be in a range of 4 degrees to 20 degrees (i.e., 4° < 012 < 20). In one or more exemplary embodiments, second angle, 012, may be less than or equal to third angle 012 < as. In an exemplary embodiment, second angle, a2, may be less than third angle, as, greater than 4 degrees, and third angle may also be less than 26 degrees (i.e., 4°< a2 < as 26). In an exemplary embodiment, first angle, ai, may be greater than or equal to third angle, as, and third angle, as, may be greater than or equal to second angle, as, as defined by the Inequality (1): a2< as < ai (1)

[0086] In an exemplary embodiment, third angle, as, may be less than 26 degrees. In an exemplary embodiment, third angle, as, may be between 10 degrees and 26 degrees (i.e., 10s< as < 26). In an exemplary embodiment, first, second, and third angles ai, a2, and as may be defined by the Inequalities (2) and (3):95°< ai < l l l° (2)4°< a2< a3< 26’ (3)Ref- 1403007

[0087] It is appreciated that although FIGs. 6C-6D illustrate first, second, and third angles specifically for first leading edge 636a, similar angles may also be defined for second leading edge 636b of half blade 612a and also corresponding leading edges of half blade 612b, because blade 612 is mirror-symmetrical with respect to first and second plane of symmetry 601 and 603.

[0088] In an exemplary embodiment, with further reference to FIGs. 6B-6C, curved line 638 may comprise at least two exemplary portions (e.g., portions 652, 654, 656). In an exemplary embodiment, at least two portions of curve line 638 may comprise an exemplary first inwardly arced portion 652 and an exemplary second inwardly arced portion 654 (i.e., both portions may bend toward pressure side 642 of blade 612 such that both portions may define concave segments with respect to back side 640 of blade 612). In an exemplary embodiment, first inwardly arced portion 652 may extend from median edge 632 towards an exemplary first point Pi on curved line 638. In an exemplary embodiment, first inwardly arced portion 652 may be an exemplary arc of an exemplary circle having an exemplary radius Ri. In an exemplary embodiment, first inwardly arced portion 652 may comprise an exemplary first degree of curvature, Pi. In an exemplary embodiment, an exemplary second inwardly arced portion 654 may extend from trailing edge 630 towards an exemplary second point P2 on curved line 638. In an exemplary embodiment, second inwardly arced portion 654 may be an exemplary arc of an exemplary circle having an exemplary radius R2. In an exemplary embodiment, second inwardly arced portion 654 may comprise an exemplary second degree of curvature, P2. In an exemplary embodiment, first degree of curvature, Pi, and second degree of curvature, P2, may be defined by the Inequality (4):Pi < P2 (4)Ref- 1403007

[0089] In an exemplary embodiment, first degree of curvature may be greater than 1 degree (i.e., 1°< pi). In an exemplary embodiment, first degree of curvature may be in a range of 1 degree to 17 degrees (i.e., 1° < pi < 17°). In an exemplary embodiment, second degree of curvature may be less than 47 degrees (i.e., P2 < 47°). In an exemplary embodiment, second degree of curvature may be in a range of 31 degrees to 47 degrees (i.e., 31° < P2 < 47°). In an exemplary embodiment, first degree of curvature, Pi, and second degree of curvature, P2, corresponding to first inwardly arced portion 652 and second inwardly arced portion 654 of curved line 638 may be defined by the Inequality (5):7< P1 < P2 < 47 (5)

[0090] In an exemplary embodiment, curved line 638 may further comprise an exemplary third inwardly arced portion 656 having an exemplary third degree of curvature, P3. In an exemplary embodiment, third inwardly arced portion 656 may be an exemplary arc of an exemplary circle having an exemplary radius R3. In an exemplary embodiment, third inwardly arced portion 656 may tangentially extend between first point Pi and second point P2 on curve line 638.

[0091] In an exemplary embodiment, with reference to FIG. 6E, first plane of symmetry 601 may divide median edge 632 into two substantially similar sections which may also be referred to as median edge. In an exemplary embodiment, median edge 632 may comprise an exemplary first segment 632a and an exemplary second segment 632b. In an exemplary embodiment, first segment 632s and second segment 632b may extend from corresponding first end 633a and second end 633b of median edge 632 defining fourth angle, 014, relative to first plane of symmetry 601, so first segment 632a and second segment 632b may have an angular distance with each other which is twice fourth angle (i.e., angular distance between an exemplary line 665, tangent to first segment 632a, and an exemplary line 667, tangent to secondRef- 1403007 segment 632b equals to 2a4). In an exemplary embodiment, median edge 632 may further comprise an exemplary middle part 666 comprising an exemplary curved segment which extends between first and second segments 632a and 632b of median edge 632. In an exemplary embodiment, first plane of symmetry 601 may bisect middle part 666 into two substantially similar sections. In an exemplary embodiment, due to blade’s symmetry, first and second segments 632a and 632b may be substantially similar and have substantially equal lengths. In an exemplary embodiment, each of first and second segments 632a and 632b may comprise an exemplary straight line which is tangent to middle part 666 at exemplary intersection with it. In an exemplary embodiment, an exemplary fourth angle may be defined by the Inequality (6):26° < Ou < 4 (6)

[0092] In an exemplary embodiment, with continued reference to FIG. 6E, each first segment 632a and second segment 632b of median edge 632 may define an exemplary fifth angle, as, with an exemplary line or plane 668 which passes through both first end 633a and second end 633b of median edge 632. In an exemplary embodiment, tangent line or plane 668 may be perpendicular to first plane of symmetry 601. In an exemplary embodiment, median edge 632 may make an exemplary fifth angle, as, with an exemplary line 668 which is perpendicular to first plane of symmetry 601 and passes through first end 633a of median edge 632. In an exemplary embodiment, fifth angle may be defined by the Inequality (7): as > 51° (7)

[0093] It is appreciated that although FIG. 6E illustrates fourth and fifth angles specifically for first segment 632a of median edge 632, similar angles may also be defined for second segment 632b of median edge 632 of half blade 612a and also exemplary first andRef- 1403007 second segments of an exemplary median edge of half blade 612b, because blade 612 is mirror- symmetrical with respect to first and second plane of symmetries 601 and 603.

[0094] FIG. 7 illustrates a schematic view 700 of another exemplary arrangement of an exemplary rotor blade assembly, consistent with one or more embodiments of the present disclosure. In an exemplary embodiment a plurality of exemplary blades (e.g., blades 712, 714, and 716 which are substantially similar to each other and to half blades 612a or 612b) may be connected to and arranged circumferentially around rotor hub 628 such that a respective pressure side of each respective blade faces towards an opposite direction relative to respective pressure sides of its two adjacent blades, while respective pressure sides of its two adjacent blades faces towards a similar direction. For example, an exemplary pressure side 718 of blade 712 faces upwards, while respective exemplary pressure sides 720 and 722 of its two adjacent blades 714 and 716 faces downwards.

[0095] In an exemplary embodiment, with continued reference to FIG. 7, each respective blade of a plurality of exemplary blades (e.g., blades 712, 714, and 716 which are substantially similar to each other and to half blades 612a or 612b) may be disposed between an exemplary first and an exemplary second adjacent blades of the plurality of exemplary blades such that a respective first segment of an exemplary median edge of each respective blade of the plurality of exemplary blades may be connected to a corresponding median edge of its first adjacent blade and an exemplary second segment of the exemplary median edge of each respective blade of the plurality of exemplary blades may be connected to a corresponding median edge of its second adjacent blade. For example, an exemplary first segment of median edge of blade 712 may be connected to a corresponding segment of median edge of its adjacent blade 714 and an exemplary second segment of median edge of blade 712 may be connected to a corresponding segment of median edge of its adjacent blade 716.Ref- 1403007

[0096] In an exemplary embodiment, with continued reference to FIG. 7, respective leading edges of each respective blade of a plurality of exemplary blades may align with corresponding leading edges of its adjacent blades. For example, exemplary leading edges 724a and 724b of blade 712 may respectively align with exemplary leading edges 726 and 728 of its adjacent blades 714 and 716.

[0097] In one or more exemplary embodiments, aforementioned blades (e.g., blades 612, 712, 714, 716) may be manufactured from various materials. In an exemplary embodiment, aforementioned blades (e.g., blades 612, 712, 714, 716) may be manufactured from solid materials such as aluminum, steel, titanium, composite materials, ceramic matrix composites, etc, or any materials known for use in manufacturing turbine blades such as, but are not limited to, U-500, Rene 77, Rene N5, Rene N6, PWA1484, CMSX-4, CMSX-10, Inconel, GTD-111, EPM-102, Nominic 80a, Niminic 90, Nimonic 105, Nimonic 105 and Nimonic 263. In one or more exemplary embodiments, blades (e.g., blades 612, 712, 714, 716) may be manufactured using any known methods such as, but not limited to, casting, machining, extrusion.

[0098] While the foregoing has described what are considered to be the best mode and / or other examples, it is understood that various modifications may be made therein and that the subject matter disclosed herein may be implemented in various forms and examples, and that the teachings may be applied in numerous applications, only some of which have been described herein. It is intended by the following claims to claim any and all applications, modifications and variations that fall within the true scope of the present teachings.

[0099] Unless otherwise stated, all measurements, values, ratings, positions, magnitudes, sizes, and other specifications that are set forth in this specification, including in the claims that follow, are approximate, not exact. They are intended to have a reasonable range that isRef- 1403007 consistent with the functions to which they relate and with what is customary in the art to which they pertain.[000100] The scope of protection is limited solely by the claims that now follow. That scope is intended and should be interpreted to be as broad as is consistent with the ordinary meaning of the language that is used in the claims when interpreted in light of this specification and the prosecution history that follows and to encompass all structural and functional equivalents. Notwithstanding, none of the claims are intended to embrace subject matter that fails to satisfy the requirement of Sections 101, 102, or 103 of the Patent Act, nor should they be interpreted in such a way. Any unintended embracement of such subject matter is hereby disclaimed.[000101] Except as stated immediately above, nothing that has been stated or illustrated is intended or should be interpreted to cause a dedication of any component, step, feature, object, benefit, advantage, or equivalent to the public, regardless of whether it is or is not recited in the claims.[000102] It will be understood that the terms and expressions used herein have the ordinary meaning as is accorded to such terms and expressions with respect to their corresponding respective areas of inquiry and study except where specific meanings have otherwise been set forth herein. Relational terms such as first and second and the like may be used solely to distinguish one entity or action from another without necessarily requiring or implying any actual such relationship or order between such entities or actions. An element proceeded by “a” or “an” does not, without further constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.[000103] It will be understood that the terms and expressions used herein have the ordinary meaning as is accorded to such terms and expressions with respect to their corresponding respective areas of inquiry and study, except where specific meanings have otherwise been setRef- 1403007 forth herein. Relational terms such as “first” and “second” and the like may be used solely to distinguish one entity or action from another without necessarily requiring or implying any actual such relationship or order between such entities or actions.[000104] The Abstract of the Disclosure is provided to allow the reader to quickly ascertain the nature of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. In addition, in the foregoing Detailed Description, it may be seen that various features are grouped together in various implementations. This is for purposes of streamlining the disclosure, and is not to be interpreted as reflecting an intention that the claimed implementations require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive subject matter lies in less than all features of a single disclosed implementation. Thus, the following claims are hereby incorporated into the Detailed Description, with each claim standing on its own as a separately claimed subject matter.[000105] While various implementations have been described, the description is intended to be exemplary, rather than limiting and it will be apparent to those of ordinary skill in the art that many more implementations and implementations are possible that are within the scope of the implementations. Although many possible combinations of features are shown in the accompanying figures and discussed in this detailed description, many other combinations of the disclosed features are possible. Any feature of any implementation may be used in combination with or substituted for any other feature or element in any other implementation unless specifically restricted. Therefore, it will be understood that any of the features shown and / or discussed in the present disclosure may be implemented together in any suitable combination. Accordingly, the implementations are not to be restricted except in light of theRef- 1403007 attached claims and their equivalents. Also, various modifications and changes may be made within the scope of the attached claims.

Claims

Ref- 1403007What is claimed is:

1. A multi-story structure for harvesting electric power from an airflow, comprising: a ground floor disposed at a lower-most part of the multi-story structure, the ground floor comprising a plurality of airflow channels fluidly connected to one another through a corridor, wherein each respective airflow channel comprises a plurality of lateral walls extended between a first gate and a second gate, wherein: the first gate has a greater area with respect to the second gate; and the first gate introduces the airflow into the airflow channel and the plurality of lateral walls conducts the airflow to the corridor through the second gate; a power generator structure disposed at an upper-most part of the multi-story structure, the power generator structure comprising: a base mounted to the upper-most part of the multi-story structure, the base comprising an inclined surface configured to conduct the airflow toward the power generator structure; a vault-shaped frame connected to the base through a plurality of first vertical studs, the vault-shaped frame comprising: a plurality of first wind guides spanning over a plurality of first curved ribs, each respective first curved rib extending from a respective second vertical stud of a plurality of second vertical studs at one end and connected to the other first curved ribs at another end, the plurality of first wind guides configured to conduct the airflow into a first generator assembly; a plurality of second wind guides spanning over a plurality of second curved ribs, each respective second curved rib extending between the corresponding first vertical stud of the plurality of first vertical studs and the corresponding secondRef- 1403007 vertical stud of the plurality of second vertical studs, the plurality of second wind guides configured to conduct the airflow into a second generator assembly; and a plurality of projecting lancet arches, each respective projecting lancet arch extending between two adjacent first vertical studs of the plurality of first vertical studs and connected to corresponding adjacent second wind guides of the plurality of second wind guides such that each respective projecting lancet arch defines a corresponding wind entrance of the plurality of wind entrances in the vault- shaped frame; and a third generator apparatus surrounded by the plurality of wind entrances, the third generator apparatus comprising: at least one first wind booster comprising an inclined surface spanning between a base edge, a first face, a straight lateral face, and a curved lateral face of the at least one first wind booster, wherein the base edge is disposed at a corresponding wind entrance of the plurality of wind entrances and the first face is disposed at an interior space of the vault-shaped frame; at least one second wind booster comprising an inclined surface spanning between a base edge, a curved lateral face, and a two-portion straight lateral face of the at least one second wind booster, wherein: the base edge of the at least one second wind booster disposed at a corresponding wind entrance of the plurality of wind entrances and an intersection of the curved lateral face and the two-portion straight lateral face of the at least one second wind booster is disposed at the interior space of the vault-shaped frame; andRef- 1403007 the curved lateral face of the at least one second wind booster is similar to the curved lateral face of the at least one first wind booster and disposed next to the curved lateral face of the at least one first wind booster; at least one first wind-guide plate comprising a straight plate extending along the straight lateral face of the at least one first wind booster; and at least one second wind-guide plate comprising a curved plate extending along the respective curved lateral faces of the at least one first and second wind boosters.

2. The multi-story structure of claim 1, wherein the respective second gates of at least two airflow channels of the plurality of channels disposed opposite one another.

3. The multi-story structure of claim 1, wherein the inclined surface of the base of the power generator structure conducts the airflow into the third generator apparatus.

4. The multi-story structure of claim 1, wherein each respective projecting lancet arch is mirror- symmetrical and comprises: a connecting edge configured to connect the projecting lancet arch to its adjacent second wind guides of the plurality of second wind guides; and a free edge configured to conduct the airflow into a corresponding wind entrance of the plurality of wind entrances, wherein a portion of the free edge is folded towards the connecting edge.

5. The multi-story structure of claim 4, wherein the folded portion of the free edge is disposed at connections between the projecting lancet arch and two adjacent first vertical studs.

6. The multi-story structure of claim 1, wherein the third generator apparatus further comprises: a rotor blade assembly capable of use with a rotating shaft, the rotor blade assembly comprising: a rotor hub coaxially mounted on the rotating shaft;Ref- 1403007 a plurality of blades connected to and arranged circumferentially around the rotor hub, each respective blade of the plurality of blades being mirror- symmetrical with respect to a first and a second plane of symmetries, the first plane of symmetry extending between a hub-side end and a tip-side end of the respective blade, the second plane of symmetry being perpendicular to the rotating shaft, the first and the second plane of symmetries dividing the respective blade into four similar portions, wherein each of the respective similar portions comprises: a median edge disposed on the second plane of symmetry and connected to the rotor hub, the median edge comprising a first segment extending between a first end of the median edge and the first plane of symmetry; a trailing edge disposed farther from the rotor hub than the median edge; a leading edge convergently extending from the first end of the median edge to a first end of the trailing edge, wherein the leading edge makes a first angle, ai, with the median edge at the first end of the median edge, a second angle, 012, with the first plane of symmetry at the first end of the trailing edge, and a third angle, as, with the first plane of symmetry at the first end of the median edge, such that the first, second, and third angles are defined by the inequality: 2< as < ai; and a blade surface extending between the median edge, the trailing edge, the leading edge, and the first plane of symmetry, wherein: the blade surface defines a curved line disposed within the first plane of symmetry and extending from a mid-point of the median edge to a mid-point of the trailing edge; and the curved line comprises at least two portions comprising:Ref- 1403007 a first inwardly arced portion extending from the median edge towards a first point on the curved line, the first inwardly arced portion comprising a first degree of curvature, Pi; and a second inwardly arced portion extending from the trailing edge towards a second point on the curved line, the second inwardly arced portion comprising a second degree of curvature, P2, wherein the first degree of curvature and the second degree of curvature is defined by the inequality: pi < p2.

7. The multi-story structure of claim 6, wherein the plurality of blades are arranged equally-spaced around the rotor hub.

8. The multi-story structure of claim 6, wherein the first segment of the median edge comprises a first linear segment extending from the first end of the median edge to a middle part of the median edge such that a fourth angle is defined between the first linear segment and the first plane of symmetry, the fourth angle is defined by the inequality:26’< a4< 42>.

9. The multi- story structure of claim 8, wherein the middle part of the median edge having a curved segment which extends between the first linear segment and the first plane of symmetry, wherein the curved segment is tangent to the first linear segment.

10. The multi-story structure of claim 6, wherein the first, second, and third angles are defined by the inequalities:95’< ai < 11 T; and4° < 012 < 013 < 26’.Ref- 140300711. The multi-story structure of claim 6, wherein the median edge makes a fifth angle, as, with a line which is perpendicular to the first plane of symmetry and passes through the first end of the median edge.

12. The multi- story structure of claim 11, wherein the fifth angle is defined by the inequality: as > 51°.

13. The multi-story structure of claim 6, wherein the first degree and the second degree of curvatures corresponding to the first inwardly arced portion and the second inwardly arced portion of the curved line are defined by the inequality: l°< pi < p2< 47.

14. The multi-story structure of claim 6, wherein the curved line further comprises a third inwardly arced portion having a third degree of curvature, P3, wherein the third inwardly arced portion tangentially extends between the first point and the second point on the curve line.

15. The multi-story structure of claim 1, wherein the third generator apparatus further comprises: a rotor blade assembly capable of use with a rotating shaft, the rotor blade assembly comprising: a rotor hub coaxially mounted on the rotating shaft; a plurality of blades connected to and arranged circumferentially around the rotor hub such that a respective pressure side of each respective blade faces towards an opposite direction relative to respective pressure sides of its two adjacent blades, while respective pressure sides of its two adjacent blades faces towards a similar direction, each respective blade of the plurality of blades being mirror- symmetrical with respect to a first plane of symmetry, the first plane of symmetry extending between a hub-side end and a tip-side end of the respective blade dividing the respective blade into two similar portions, wherein each of the respective similar portions comprises:Ref- 1403007 a median edge connected to the rotor hub, the median edge comprising a first segment extending between a first end of the median edge and the first plane of symmetry; a trailing edge disposed farther from the rotor hub than the median edge; a leading edge convergently extending from the first end of the median edge to a first end of the trailing edge, wherein the leading edge makes a first angle, ai, with the median edge at the first end of the median edge, a second angle, 012, with the first plane of symmetry at the first end of the trailing edge, and a third angle, as, with the first plane of symmetry at the first end of the median edge, such that the first, second, and third angles are defined by the inequality: 2< as < ai; and a blade surface extending between the median edge, the trailing edge, the leading edge, and the first plane of symmetry, wherein: the blade surface defines a curved line disposed within the first plane of symmetry and extending from a mid-point of the median edge to a mid-point of the trailing edge; and the curved line comprises at least two portions comprising: a first inwardly arced portion extending from the median edge towards a first point on the curved line, the first inwardly arced portion comprising a first degree of curvature, Pi; and a second inwardly arced portion extending from the trailing edge towards a second point on the curved line, the second inwardly arced portion comprising a second degree of curvature, P2, wherein the first degree of curvature and the second degree of curvature is defined by the inequality: pi < p2.Ref- 140300716. The multi- story structure of claim 15, wherein each respective blade of the plurality of blades is disposed between a first and a second adjacent blades of the plurality of blades such that the respective first segment of the median edge of each respective blade of the plurality of blades is connected to the corresponding median edge of its first adjacent blade and a second segment of the median edge of each respective blade of the plurality of blades is connected to the corresponding median edge of its second adjacent blade, wherein respective leading edges of each respective blade of the plurality of blades aligns with the corresponding leading edges of its adjacent blades.

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