CA2796432A1 - Fluid turbine with moveable fluid control member - Google Patents

Fluid turbine with moveable fluid control member Download PDF

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Publication number
CA2796432A1
CA2796432A1 CA2796432A CA2796432A CA2796432A1 CA 2796432 A1 CA2796432 A1 CA 2796432A1 CA 2796432 A CA2796432 A CA 2796432A CA 2796432 A CA2796432 A CA 2796432A CA 2796432 A1 CA2796432 A1 CA 2796432A1
Authority
CA
Canada
Prior art keywords
moveable
stator
fluid
edge
surface segment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA2796432A
Other languages
French (fr)
Inventor
Walter M. Presz, Jr.
Michael J. Werle
Robert Dold
Timothy Hickey
Thomas J. Kennedy, Iii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FloDesign Wind Turbine Corp
Original Assignee
FloDesign Wind Turbine Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FloDesign Wind Turbine Corp filed Critical FloDesign Wind Turbine Corp
Publication of CA2796432A1 publication Critical patent/CA2796432A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/12—Fluid guiding means, e.g. vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/12—Fluid guiding means, e.g. vanes
    • F05B2240/122—Vortex generators, turbulators, or the like, for mixing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/13—Stators to collect or cause flow towards or away from turbines
    • F05B2240/132—Stators to collect or cause flow towards or away from turbines creating a vortex or tornado effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/14—Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/301—Cross-section characteristics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/31—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/18—Geometry two-dimensional patterned
    • F05B2250/182—Geometry two-dimensional patterned crenellated, notched
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/18—Geometry two-dimensional patterned
    • F05B2250/183—Geometry two-dimensional patterned zigzag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/109—Purpose of the control system to prolong engine life
    • F05B2270/1095—Purpose of the control system to prolong engine life by limiting mechanical stresses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

A shrouded fluid turbine includes an impeller for generating power from a fluid stream and a shroud surrounding the impeller. The impeller and/or the shroud have a moveable member for controlling power generation in the fluid turbine. The shroud has a plurality of mixing lobes on a trailing edge thereof, the trailing edge having a circular crenellated shape. The power generation is controlled by reducing loads and/or controlling impeller speed. Various moveable components are described for the stator vanes and the rotor blades.

Claims (20)

1. A fluid turbine (100), comprising:
an impeller (140) for generating power from a fluid stream; and a turbine shroud (110) surrounding the impeller;
the impeller comprising a stator (142) and a rotor (146), and the stator or the rotor comprising a moveable component for controlling the fluid stream in the fluid turbine.
2. The fluid turbine of claim 1, wherein the stator comprises a stator hub (210) and one or more stator vanes (220) extending radially from the stator hub, and wherein at least one of the stator vanes comprises the moveable component, the moveable component comprising a stationary member (240) and a first moveable member (260) which are located longitudinally to each other along the stator hub, the first moveable member being able to pivot relative to the stationary member about a radial axis (285).
3. The fluid turbine of claim 2, wherein the stationary member and the first moveable member are pivotally engaged along a back end (248) of the stationary member and a front end (266) of the first moveable member, the stationary member defining a leading edge (228) of the stator vane and the first moveable member defining a trailing edge (230) of the stator vane.
4. The fluid turbine of claim 2, comprising a plurality of moveable members, a front end of each moveable member being pivotally engaged to a back end of another member, the front end of one moveable member being pivotally engaged to a back end of the stationary member.
5. The fluid turbine of claim 2, wherein the stationary member defines a leading edge (412) and a trailing edge (414) of the stator vane; and wherein the first moveable member forms a portion of an upwind or downwind surface (416, 418) of the stator vane, the radial axis of the first moveable member being located in a central portion (423) of the stationary member.
6. The fluid turbine of claim 5, further comprising a second moveable member (460) that forms a portion of the downwind surface (418) of the stator vane, a radial axis (465) of the second moveable member being located in a central portion (423) of the stationary member, wherein the first moveable member forms a portion of the upwind surface (416) of the stator vane.
7. The fluid turbine of claim 1, wherein the stator comprises one or more stator vanes (220), wherein at least one of the stator vanes comprises the moveable component, the moveable component comprising a stationary member (420) and a first moveable member (430), wherein the stationary member defines a leading edge (412) and a trailing edge (414) of the stator vane; wherein the first moveable member forms a portion of an upwind or downwind surface (416, 418) of the stator vane, and wherein the first moveable member is located along a trailing edge (424) of the stationary member and the first moveable member may be deployed downstream of the trailing edge of the stator vane.
8. The fluid turbine of claim 7, wherein the first moveable member is deployed by (i) rotating about a radial axis (405) which is located along a trailing edge of the stationary member; or by (ii) extending longitudinally outwards from the trailing edge of the stationary member.
9. The fluid turbine of claim 7, wherein the first moveable member comprises a nonlinear edge (438), or wherein the first moveable member comprises a plurality of fluid passages (450) between an upper surface and a lower surface, or wherein the first moveable member has an asymmetrical shape along a radial length of the stator vane.
10. The fluid turbine of claim 1, wherein the stator comprises one or more stator vanes (510), and wherein at least one of the stator vanes comprises the moveable component;
wherein the moveable component comprises a leading edge member (520), an upper surface segment (530), a lower surface segment (540), and a trailing edge member (550);
wherein a back end (524) of the leading edge member is longitudinally engaged with a forward edge (532) of the upper surface segment and a forward edge (542) of the lower surface segment;
wherein a front end (552) of the trailing edge member is longitudinally engaged with a rear edge (534) of the upper surface segment and a rear edge (544) of the lower surface segment; and wherein the upper surface segment and the lower surface segment can move longitudinally relative to the leading edge member and the trailing edge member to change the camber of the stator vane.
11. The fluid turbine of claim 10, further comprising a plurality of linear motion actuators (562) located within one of the edge members (520, 550), and cables (564) extending from the linear motion actuators to an upper surface and a lower surface of the other edge member (550, 520).
12. The fluid turbine of claim 10, further comprising a drive pulley (566) located within one of the edge members (520, 550) and a cable (564) engaging the drive pulley, both free ends of the cable being attached to one or more fixed points within the other edge member (550, 520), a constant distance existing between the drive pulley and the one or more fixed points, wherein the upper surface segment and the lower surface segment engage the cable on opposite sides of the drive pulley.
13. The fluid turbine of claim 10, wherein linear motion actuators are used to engage the back end of the leading edge member to the forward edge of the upper surface segment and the forward edge of the lower surface segment, and to engage the front end of the trailing edge member with the rear edge of the upper surface segment and the rear edge of the lower surface segment.
14. The fluid turbine of claim 1, wherein the rotor comprises the moveable component, the moveable component comprising a hollow rotor blade (610), wherein an upstream surface (612) and a downstream surface (614) of the hollow rotor blade each comprise a fluid passage (620); and located within the hollow rotor blade is a gate (640) that comprises an insert (630) for each fluid passage operatively connected to a pivoting arm (642), the pivoting arms engaging a weighted member (650) which engages a tension member (660), the pivoting arms and the tension member cooperating so that below a given fluid velocity threshold, the inserts align with the fluid passages to prevent fluid flow through the fluid passages, and above the given fluid velocity threshold, the inserts are removed from the fluid passages to create an aperture through the hollow rotor blade.
15. The fluid turbine of claim 14, wherein a plurality of inserts are mounted on a plate (644) that is connected to a pivoting arm.
16. A method for controlling the load experienced by an impeller of a fluid turbine, comprising:
receiving a fluid turbine (100) that comprises:
an impeller (140) for generating power from a fluid stream, the impeller comprising a stator (142) and a rotor (146), the stator or the rotor comprising a moveable component, and a turbine shroud (110) surrounding the impeller; and moving the moveable component between a first position and a second position to control the load.
17. The method of claim 16, wherein the stator comprises a stator hub (210) and one or more stator vanes (220) extending radially from the stator hub, and wherein at least one of the stator vanes comprises the moveable component, wherein the moveable component comprises a stationary member (240) and a first moveable member (260) which are located longitudinally to each other along a stator hub, the first moveable member being able to pivot relative to the stationary member about a radial axis (285).
18. The method of claim 16, wherein the stator comprises one or more stator vanes (220), wherein at least one of the stator vanes comprises the moveable component, wherein the moveable component comprises a stationary member (420) and a first moveable member (430), wherein the stationary member defines a leading edge (412) and a trailing edge (414) of the stator vane;
wherein the first moveable member forms a portion of an upwind or downwind surface (416, 418) of the stator vane, and wherein the first moveable member is located along a trailing edge (424) of the stationary member such that the first moveable member may be deployed downstream of the trailing edge of the stator vane.
19. The method of claim 16, wherein the stator comprises one or more stator vanes (510), and wherein at least one of the stator vanes comprises the moveable component;
wherein the moveable component comprises a leading edge member (520), an upper surface segment (530), a lower surface segment (540), and a trailing edge member (550);
wherein a back end (524) of the leading edge member is longitudinally engaged with a forward edge (532) of the upper surface segment and a forward edge (542) of the lower surface segment;
wherein a front end (552) of the trailing edge member is longitudinally engaged with a rear edge (534) of the upper surface segment and a rear edge (544) of the lower surface segment; and wherein the upper surface segment and the lower surface segment can move longitudinally relative to the leading edge member and the trailing edge member to change the camber of the stator vane.
20. The method of claim 16, wherein the rotor comprises the moveable component;
wherein at least one rotor blade (610) is hollow, wherein an upstream surface (612) and a downstream surface (614) of the hollow rotor blade each comprise a fluid passage (620); and located within the hollow rotor blade is a gate (640) that comprises an insert (630) for each fluid passage operatively connected to a pivoting arm (642), the pivoting arms engaging a weighted member (650) which engages a tension member (660), the pivoting arms and the tension member cooperating so that below a given fluid velocity threshold, the inserts align with the fluid passages to prevent fluid flow through the fluid passages, and above the given fluid velocity threshold, the inserts are removed from the fluid passages to create an aperture through the hollow rotor blade.
CA2796432A 2010-05-07 2011-05-06 Fluid turbine with moveable fluid control member Abandoned CA2796432A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US33272210P 2010-05-07 2010-05-07
US61/332,722 2010-05-07
US41555710P 2010-11-19 2010-11-19
US61/415,557 2010-11-19
PCT/US2011/035460 WO2011140412A1 (en) 2010-05-07 2011-05-06 Fluid turbine with moveable fluid control member

Publications (1)

Publication Number Publication Date
CA2796432A1 true CA2796432A1 (en) 2011-11-10

Family

ID=44902044

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2796432A Abandoned CA2796432A1 (en) 2010-05-07 2011-05-06 Fluid turbine with moveable fluid control member

Country Status (3)

Country Link
US (1) US20110274533A1 (en)
CA (1) CA2796432A1 (en)
WO (1) WO2011140412A1 (en)

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US8829706B1 (en) * 2010-06-21 2014-09-09 Johann Quincy Sammy Adaptive control ducted compound wind turbine
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Publication number Publication date
US20110274533A1 (en) 2011-11-10
WO2011140412A1 (en) 2011-11-10

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Legal Events

Date Code Title Description
FZDE Discontinued

Effective date: 20160506