WO2010077150A1 - Energy converter - Google Patents

Energy converter Download PDF

Info

Publication number
WO2010077150A1
WO2010077150A1 PCT/NO2009/000449 NO2009000449W WO2010077150A1 WO 2010077150 A1 WO2010077150 A1 WO 2010077150A1 NO 2009000449 W NO2009000449 W NO 2009000449W WO 2010077150 A1 WO2010077150 A1 WO 2010077150A1
Authority
WO
WIPO (PCT)
Prior art keywords
elements
aerofoil
fluid
streams
kinetic energy
Prior art date
Application number
PCT/NO2009/000449
Other languages
French (fr)
Inventor
Arvid Nesheim
Original Assignee
Arvid Nesheim
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 Arvid Nesheim filed Critical Arvid Nesheim
Publication of WO2010077150A1 publication Critical patent/WO2010077150A1/en

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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/26—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy
    • F03B13/268—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy making use of a dam
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • 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
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the invention in question concerns a device (1) for conversion of the kinetic energy of air and water streams into usable energy forms.
  • the device is shaped like the cross-section of an aerofoil with components (2, 4) that create low pressure when placed in a fluid stream.
  • the lowered fluid pressure is extended to one or several chambers (10) where it via tube outlets (5) can be transferred and utilised to pump air or water or to drive turbines and other equipment based on pneumatics or hydraulics.
  • the lowering of the pressure occurs mainly due to the change of fluid flow direction when fluid masses flow along the curved elements (2, 4) mat cause the fluid masses to accelerate sideways which results in reaction forces acting away from the surfaces of the elements (2, 4). Pressure lowering may however also occur due to pressure drag and increase of fluid velocity.
  • the device is mainly intended used for capture and conversion of the kinetic energy of wind, ocean currents, sea waves, tidal streams and rivers.
  • the special ability of the device to convert the kinetic energy of fluid streams in regard to velocity and pressure can however be used in different ways to many other purposes.
  • a characteristic feature of the invention in question is that the aerofoil element (2) at one side is provided with a number of extended elements (4) which in their longitudinal direction are curved like the cross-section of an aerofoil.
  • the elements (4) are placed parallel to each other with spaces (3) between the elements (4) so that air or water can flow between the elements (2, 4) along their longitudinal side surfaces to generate low pressure on the curved surface of the aerofoil element (2).
  • the elements (4) along their longitudinal sides are provided with one or several levels of inclined surfaces (4B) which due to their shape contribute to the lowering of pressure in the spaces (3).
  • the surfaces may be curved or straight or a combination of both to achieve optimum results.
  • a third characteristic feature of the invention in question is that passage for air or water between the spaces (3) and the chamber (10) is obtained via openings (4C) in the elements (4) and via openings (9) in the aerofoil element (2).
  • the openings (9) are situated beside the spaces (3) to enable lowered pressure in the spaces (3) to be transferred to the chambers (10) without disturbance of the fluid flow along the elements (4).
  • a fourth characteristic feature of the invention in question is that the device is equipped with extended plate elements (6) placed beside the device (1) or between the elements (4).
  • the plate elements (6) is shaped to direct air or water streams coming from different directions towards the device (1) in such a way that the direction of flow becomes approximately parallel to the elements (4).
  • the plate elements (6) can be curved or straight, and the longitudinal direction or the surface of the plate elements can be approximately parallel to the longitudinal direction of the elements (4), or may vary from 0 to 45 degrees in relation to the longitudinal direction of the elements (4).
  • Figure 1 shows an isometric view of the energy converter.
  • Figure 2 is a view looking towards the low pressure side of the aerofoil and a section view through the aerofoil parallel to the air/water stream direction.
  • the plate element (6) is omitted for clarity.
  • Figure 3 shows a section view through the device where the section is perpendicular to the air/water flow direction.
  • Detail B shows elements (4) with one level of inclined surfaces (4B).
  • Figure 4 shows a section view through the device where the section is perpendicular to the air/water flow direction.
  • Detail C shows elements (4) with 2 levels of inclined surfaces (4B).
  • Figure 5 show an isometric view of element (4).
  • the figures are basically intended used to explain the principal working method of the invention in question. All required details, smoothing of corners, and fasteners of the components are therefore not shown. The shapes, size relations and distances between the components may also be different from what are shown on the sketches.
  • the device does not necessarily need to be divided into parts as described since two or more of the parts can be made by means of casting to form one continuous part.

Abstract

The invention in question concerns a device for conversion of the kinetic energy of air and water streams into usable energy forms. The device is shaped like the cross-section of an aerofoil with components (2, 4) that create low pressure when placed in a fluid stream. The lowered fluid pressure is extended to one or several chambers (10) where it via tube outlets (5) can be transferred and utilised to drive turbines and other equipment based on pneumatics or hydraulics. The device is mainly intended used for capture and conversion of the kinetic energy of wind, ocean currents, sea waves, tidal streams and rivers. The special ability of the device to convert the kinetic energy of fluid streams in regard to velocity and pressure can however be used in different ways to many other purposes.

Description

Energy Converter
The invention in question concerns a device (1) for conversion of the kinetic energy of air and water streams into usable energy forms. The device is shaped like the cross-section of an aerofoil with components (2, 4) that create low pressure when placed in a fluid stream. The lowered fluid pressure is extended to one or several chambers (10) where it via tube outlets (5) can be transferred and utilised to pump air or water or to drive turbines and other equipment based on pneumatics or hydraulics.
The lowering of the pressure occurs mainly due to the change of fluid flow direction when fluid masses flow along the curved elements (2, 4) mat cause the fluid masses to accelerate sideways which results in reaction forces acting away from the surfaces of the elements (2, 4). Pressure lowering may however also occur due to pressure drag and increase of fluid velocity.
The device is mainly intended used for capture and conversion of the kinetic energy of wind, ocean currents, sea waves, tidal streams and rivers. The special ability of the device to convert the kinetic energy of fluid streams in regard to velocity and pressure can however be used in different ways to many other purposes.
A characteristic feature of the invention in question is that the aerofoil element (2) at one side is provided with a number of extended elements (4) which in their longitudinal direction are curved like the cross-section of an aerofoil. The elements (4) are placed parallel to each other with spaces (3) between the elements (4) so that air or water can flow between the elements (2, 4) along their longitudinal side surfaces to generate low pressure on the curved surface of the aerofoil element (2).
Another characteristic feature of the invention in question is that the elements (4) along their longitudinal sides are provided with one or several levels of inclined surfaces (4B) which due to their shape contribute to the lowering of pressure in the spaces (3). The surfaces may be curved or straight or a combination of both to achieve optimum results.
A third characteristic feature of the invention in question is that passage for air or water between the spaces (3) and the chamber (10) is obtained via openings (4C) in the elements (4) and via openings (9) in the aerofoil element (2). The openings (9) are situated beside the spaces (3) to enable lowered pressure in the spaces (3) to be transferred to the chambers (10) without disturbance of the fluid flow along the elements (4). A fourth characteristic feature of the invention in question is that the device is equipped with extended plate elements (6) placed beside the device (1) or between the elements (4). The plate elements (6) is shaped to direct air or water streams coming from different directions towards the device (1) in such a way that the direction of flow becomes approximately parallel to the elements (4). The plate elements (6) can be curved or straight, and the longitudinal direction or the surface of the plate elements can be approximately parallel to the longitudinal direction of the elements (4), or may vary from 0 to 45 degrees in relation to the longitudinal direction of the elements (4).
The invention in question is shown at the following figures:
Figure 1 shows an isometric view of the energy converter. Figure 2 is a view looking towards the low pressure side of the aerofoil and a section view through the aerofoil parallel to the air/water stream direction. The plate element (6) is omitted for clarity. Figure 3 shows a section view through the device where the section is perpendicular to the air/water flow direction. Detail B shows elements (4) with one level of inclined surfaces (4B). Figure 4 shows a section view through the device where the section is perpendicular to the air/water flow direction. Detail C shows elements (4) with 2 levels of inclined surfaces (4B). Figure 5 show an isometric view of element (4).
The figures are basically intended used to explain the principal working method of the invention in question. All required details, smoothing of corners, and fasteners of the components are therefore not shown. The shapes, size relations and distances between the components may also be different from what are shown on the sketches. The device does not necessarily need to be divided into parts as described since two or more of the parts can be made by means of casting to form one continuous part.

Claims

1. Device (1) for conversion of the kinetic energy of air and water streams, or other types of fluid streams into usable energy forms, comprising an aerofoil (2), characterised by the aerofoil element (2) at one side being provided with at least 2 extended elements (4) which in their longitudinal directions are curved like an aerofoil cross- section, and that the elements (4) are placed approximately parallel to each other, having spaces (3) between each other, with passage for fluid between the spaces (3) and one or several chambers (10) via openings (4C) in the elements (4), and via openings (9) in the aerofoil element (2), where the openings (9) are placed beside the spaces (3),
2. Device (1) according to claim 1 characterised by the elements (4) along their longitudinal sides having one or several levels of inclined surfaces (4B) where the angle of the surfaces (4B) in relation to a plane parallel to the longitudinal direction of the elements (4) is between 0 and 90 degrees, and that the surfaces (4B) are shaped straight or curved,
3. Device (1) according to claim 1 and 2 characterised by the device (1) being pivotally mounted (7) so that the direction of the fluid stream in relation to the device can be altered,
4. Device (1) according to claim 1, 2 and 3 characterised by the device (1) being connected to a control system that automatically adjusts the orientation of the device (1) in relation to the fluid stream,
5. Device (1) according to claim 1, 2, 3 and 4 characterised by the device (1) being provided with at least one extended plate element (6) placed beside the device (1) or between the elements (4), where the plate element (6) is straight or curved, and where the longitudinal direction or surface of the plate element (6) is approximately parallel to the elements (4), or are between 0 and 45 degrees in relation to the longitudinal direction of elements (4).
PCT/NO2009/000449 2009-01-01 2009-12-30 Energy converter WO2010077150A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20090001A NO328433B1 (en) 2009-01-01 2009-01-01 The energy transformation
NO20090001 2009-01-02

Publications (1)

Publication Number Publication Date
WO2010077150A1 true WO2010077150A1 (en) 2010-07-08

Family

ID=41697586

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2009/000449 WO2010077150A1 (en) 2009-01-01 2009-12-30 Energy converter

Country Status (2)

Country Link
NO (1) NO328433B1 (en)
WO (1) WO2010077150A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO338741B1 (en) * 2015-01-06 2016-10-17 Arvid Nesheim Wind and water energy converters
US9562434B2 (en) 2010-11-03 2017-02-07 National Research Council Of Canada Oscillating foil turbine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5709419A (en) * 1994-02-03 1998-01-20 Roskey; John E. Wind energy collection
US20050017514A1 (en) * 2003-07-23 2005-01-27 Tocher Angus J. Laminar flow, suction driven, wind energy conversion
US7132758B2 (en) * 2002-03-20 2006-11-07 Hydroventuri Limited Extracting power from a fluid flow

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5709419A (en) * 1994-02-03 1998-01-20 Roskey; John E. Wind energy collection
US7132758B2 (en) * 2002-03-20 2006-11-07 Hydroventuri Limited Extracting power from a fluid flow
US20050017514A1 (en) * 2003-07-23 2005-01-27 Tocher Angus J. Laminar flow, suction driven, wind energy conversion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9562434B2 (en) 2010-11-03 2017-02-07 National Research Council Of Canada Oscillating foil turbine
NO338741B1 (en) * 2015-01-06 2016-10-17 Arvid Nesheim Wind and water energy converters

Also Published As

Publication number Publication date
NO20090001A (en) 2010-02-15
NO328433B1 (en) 2010-02-15

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