WO2024089447A1 - Turbine hydraulique sous-marine à buses de jet d'eau radiales - Google Patents

Turbine hydraulique sous-marine à buses de jet d'eau radiales Download PDF

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Publication number
WO2024089447A1
WO2024089447A1 PCT/IB2022/060196 IB2022060196W WO2024089447A1 WO 2024089447 A1 WO2024089447 A1 WO 2024089447A1 IB 2022060196 W IB2022060196 W IB 2022060196W WO 2024089447 A1 WO2024089447 A1 WO 2024089447A1
Authority
WO
WIPO (PCT)
Prior art keywords
turbine
fluid
rotor
tangential
inlet
Prior art date
Application number
PCT/IB2022/060196
Other languages
English (en)
Inventor
Drago SENIC
Original Assignee
Senic Drago
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 Senic Drago filed Critical Senic Drago
Priority to PCT/IB2022/060196 priority Critical patent/WO2024089447A1/fr
Publication of WO2024089447A1 publication Critical patent/WO2024089447A1/fr

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
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/08—Machines or engines of reaction type; Parts or details peculiar thereto with pressure-velocity transformation exclusively in rotors
    • 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
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/02—Casings
    • 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
    • F03B13/10—Submerged units incorporating electric generators or motors
    • 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"
    • F03B17/061—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially in flow direction
    • 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
    • F05B2210/00—Working fluid
    • F05B2210/16—Air or water being indistinctly used as working fluid, i.e. the machine can work equally with air or water without any modification
    • 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
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/97—Mounting on supporting structures or systems on a submerged structure

Definitions

  • the invention relates to a turbine for submersion in flowing water, driven by the flow of the surrounding water to generate electricity.
  • US7722313 and W02011/107816 disclose a turbine driven by a working fluid which is received by an axial inlet and expelled circumferentially through nozzles at the free ends of blades extending from a central hub.
  • the turbine inlet is fed by an inlet pipe and the assembly is housed in a housing.
  • the assembly is not configured for complete submersion in the working fluid, since the inlet is fed by an inlet pipe and the turbine forms part of a circuit of working fluid.
  • the inlet is sealed from the external environment to prevent the escape of working fluid from the inlet pipe, and it is thus incapable of receiving fluid from its surroundings.
  • WO2014/022887 discloses a similar apparatus with an inlet pipe structure.
  • the inlet pipe is an essential part of the support structure for the turbine.
  • the turbine is supported by two plates.
  • the turbine is particularly unsuitable for submersion in an external working fluid.
  • WO2018/112530 discloses a very similar system to WO2014/022887.
  • the turbine in this case is designed for 6000 revolutions per minute and is therefore enclosed in a housing in order to prevent injury in the event of a bearing failure.
  • the system is entirely unsuitable for use submerged in water.
  • GB2425329 discloses an apparatus which drives a turbine for the generation of electricity by extracting kinetic energy from water. It includes a horizontal axistype turbine which is driven by horizontally flowing water, such as a tidal body of water or a river. This horizontal axis-type turbine is driven by impeller blades extending radially from the axis of rotation. Impeller blades of this kind are often vulnerable to snapping, since they are necessarily long, narrow and thin. Their rotation through an area of open water, in use, also poses a threat to creatures living in the water who may try to pass through the area of rotation.
  • a Segner wheel is a water-driven turbine with a vertical axis of rotation.
  • Segner wheels are not submerged in water. Water enters a Segner vertically through its axis, typically driven by gravity. This water leaves the Segner wheel horizontally, through radial outlets which direct escaping water tangentially to the circumference of the Segner wheel, in order to generate torque.
  • a turbine comprising a turbine rotor comprising an axial fluid inlet, at least one tangential fluid outlet, and a fluid flow passage connecting the axial fluid inlet with each of the at least one tangential fluid outlets.
  • a turbine stator rotatably connected to the turbine rotor, and housing an electrical generator having a generator rotor in mechanical communication with the turbine rotor.
  • a support structure for securing and supporting, in use, the turbine stator in the path of flowing fluid such that the axis of the turbine rotor is parallel to the direction of fluid flow and at least the axial fluid inlet is submerged in the flowing fluid.
  • the support structure is configured to secure and support, in use, the turbine stator such that the axis of the turbine rotor is substantially parallel with the direction of fluid flow.
  • the support structure may be a pillar configured to extend substantially perpendicular, in use, from a supporting surface.
  • the fluid flow passage comprises an inlet chamber and at least one outlet chamber, in fluid communication with one another.
  • the fluid flow passage may be shaped so as to redirect axially flowing fluid entering the inlet chamber so that it exits each of the at least one tangential fluid outlets flowing tangentially to the turbine rotor. It may also comprise at least two tangential fluid outlets with at least two respective outlet chambers, wherein the outlet chambers are separated by partition walls.
  • Figure 1 depicts an external view of an embodiment of the invention
  • Figure 2 depicts a side hidden line view of an embodiment of the invention
  • Figure 3 depicts a front and side cross-section of the front wheel of an embodiment of the invention
  • Figure 4 depicts a front, side and angled external view of the front wheel section of an embodiment of the invention
  • Figure 5 shows torque vs rotational speed of the front wheel of an embodiment of the invention.
  • the turbine 100 is designed for operation under the surface of moving water, without the need for construction of water dams etc. Preferably having a roughly teardrop shape (although other shapes can be used).
  • the teardrop shape turbine is preferable as it allows installation of more turbines in chain behind each other, where two adjacent turbines can be closer to each other.
  • a "square shaped" turbine for example, the distance between two nearby turbines would need to be several times larger.
  • Teardrop shaped turbines also have the ability to naturally position themselves in parallel to the flow of the fluid and front itself directly against the fluid speed vector, with no need for implementing turbine "stabilizers".
  • the bulbus end of the turbine 100 points ‘upstream’.
  • the turbine comprises a rotating front wheel 2, which forms the majority of the bulbus portion of the teardrop shape; this is attached to axle 4, which runs along a central axis, which in turn runs longitudinally through the centre of the turbine 100.
  • Axle 4 extends out the back of front wheel 2 and into a static waterproof case 5, which forms the pointed portion of the teardrop shape.
  • At the end of axle 4 distal to front wheel 2 the axle 4 is connected to an electric generator 6, which sits inside static waterproof case 5.
  • Axle 4 transmits the mechanical energy from front wheel 2 when it is rotating to the electrical generator 6 in order to generate electricity.
  • Static waterproof case 5 is mounted onto stand 7, which is anchored to a suitable point and holds the case 5 and front wheel 2 (except for rotation) still. Any additional desired wiring to connect the generator 6 to a wider grid can be passed through sand 7 also.
  • Turbine 100 is a reaction-type turbine and incorporates features of axial and radial turbines. It is of the horizontal axis turbine style traditionally used for wind turbines, but the present invention utilises water fluid flow rather than air fluid flow. However the present invention would be functional with fluid airflow also.
  • the turbine works as the moving flowing water flows axially into the water inlet 1 in a direction substantially parallel to the longitudinal axis of the turbine 100 (best indicated by the arrow of 14).
  • Water inlet 1 is positioned at the ‘front’ of the turbine 100 and therefore at a ‘front’ of the front wheel 2.
  • At the back of the front wheel two 2 positioned around the outer circumference are a plurality of nozzles 3, pointed tangentially in the same direction as each other in relation to the circumference of front wheel 2.
  • the water inlet 1 and plurality of nozzles 3 are in fluid communication with each other, such that, due to the hydrostatic pressure the water is ejected from the plurality of nozzles 3.
  • the water jets Due to the direction of the plurality of nozzles 3 the water jets produce a useful torque which causes the front wheel/rotor 2 to rotate. Namely, the useful torque is produced by propulsive force of thrust induced by the water jets exiting from the nozzles.
  • the front wheel/ rotor 2 comprises the water inlet 1 in fluid communication with a plurality of nozzles 3 which are placed around the circumference of the rotating front wheel/rotor 2.
  • the fluid pathway between inlet one and the plurality of nozzles 3 comprises a plurality of partition chambers 8 separated by partition walls 12.
  • the cross-sectional area of the water inlet 1 noted as is much larger than the sum of all the cross-sectional areas A n of the plurality of nozzles 3.
  • p being the density of water (1000Kg/m 3 ).
  • Vj e t the speed of the water exiting the nozzles
  • R r being the radius distance from the centre of the turbine to the nozzle exit.
  • the useful torque (T) starts to decrease from its initial value TO (torque when rotor 2 is stationary in flowing water).
  • the rotational speed (noted as w) of the rotor 2 begins to speed up until the rotor 2 reaches the idle speed Qi, the useful torque T reaches 0 and the rotor 2 is spinning at maximum speed.
  • the idle speed Qi is the maximum rotational speed of the rotor 2 and is the rotating speed of the rotor 2 when the flux of water flow exiting the plurality of nozzles 3 has become equal to the flux of water flow entering the inlet 1 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hydraulic Turbines (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

L'invention concerne une turbine dotée d'un rotor de turbine comprenant une entrée de fluide axiale, au moins une sortie de fluide tangentielle, et un passage d'écoulement de fluide reliant l'entrée de fluide axial à chacune de la ou des sorties de fluide tangentielles. Ladite turbine comprend également un stator de turbine, relié de manière rotative au rotor de turbine, et logeant un générateur électrique ayant un rotor de générateur en communication mécanique avec le rotor de turbine. Ladite turbine comprend en outre une structure de support permettant de fixer et supporter, lors de l'utilisation, le stator de turbine dans le trajet de fluide en écoulement de telle sorte que l'axe du rotor de turbine soit parallèle à la direction d'écoulement de fluide et au moins l'entrée de fluide axial est immergée dans le fluide en écoulement. Ladite turbine comprend de même des première et seconde sections de carter : la première section de carter définissant le rotor de turbine comprenant l'entrée de fluide axiale, au moins la sortie de fluide tangentielle sur une surface externe de la première section de carter de turbine, et le passage d'écoulement de fluide reliant l'entrée de fluide axiale à chacune de la ou des sorties de fluide tangentielles ; (support trouvé dans le paragraphe 19) la seconde section de carter définissant le stator de turbine, connectée de façon rotative au rotor de turbine, et logeant le générateur électrique ayant le rotor de générateur en communication mécanique avec le rotor de turbine ; et une structure de support pour fixer et supporter : lors de l'utilisation, le stator de turbine dans le trajet de fluide en écoulement de telle sorte que l'axe du rotor de turbine soit parallèle à la direction d'écoulement de fluide et au moins l'entrée de fluide axial est immergée dans le fluide en écoulement.
PCT/IB2022/060196 2022-10-24 2022-10-24 Turbine hydraulique sous-marine à buses de jet d'eau radiales WO2024089447A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2022/060196 WO2024089447A1 (fr) 2022-10-24 2022-10-24 Turbine hydraulique sous-marine à buses de jet d'eau radiales

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2022/060196 WO2024089447A1 (fr) 2022-10-24 2022-10-24 Turbine hydraulique sous-marine à buses de jet d'eau radiales

Publications (1)

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WO2024089447A1 true WO2024089447A1 (fr) 2024-05-02

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2335135A5 (fr) * 1973-12-28 1977-07-08 Charpentier Jean Convertisseur a cycle nouveau transformant en force motrice gratuite tangentielle ou axiale, l'energie cinetique de composante radiale transmise aux masses fluides dans les mouvements tournants
US5221186A (en) * 1991-10-23 1993-06-22 Machin Thomas H Wind turbine apparatus with fluidic rotation indicator
FR2869068A1 (fr) * 2004-04-16 2005-10-21 Rdcr Turbomachine a entrainement liquide ou gazeux et a rendement eleve
GB2425329A (en) 2005-04-20 2006-10-25 Marine Current Turbines Ltd Arrangement for supporting turbine installation
US7722313B1 (en) 2006-12-12 2010-05-25 Di Iorio Crescencio Device for converting kinetic energy contained in a fluid, into mechanical energy
US20110070083A1 (en) * 2009-09-19 2011-03-24 Salomo Murtonen Streamlined Wind Turbine Optimized for Laminar Layer
WO2011107816A1 (fr) 2010-03-05 2011-09-09 Gomez, Oscar Turbine tube à vitesse variable
WO2014022887A2 (fr) 2012-08-08 2014-02-13 C I Corporation Pty Ltd Ensemble turbine
WO2018112530A1 (fr) 2016-12-20 2018-06-28 C I Corporation Pty Ltd Turbine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2335135A5 (fr) * 1973-12-28 1977-07-08 Charpentier Jean Convertisseur a cycle nouveau transformant en force motrice gratuite tangentielle ou axiale, l'energie cinetique de composante radiale transmise aux masses fluides dans les mouvements tournants
US5221186A (en) * 1991-10-23 1993-06-22 Machin Thomas H Wind turbine apparatus with fluidic rotation indicator
FR2869068A1 (fr) * 2004-04-16 2005-10-21 Rdcr Turbomachine a entrainement liquide ou gazeux et a rendement eleve
GB2425329A (en) 2005-04-20 2006-10-25 Marine Current Turbines Ltd Arrangement for supporting turbine installation
US7722313B1 (en) 2006-12-12 2010-05-25 Di Iorio Crescencio Device for converting kinetic energy contained in a fluid, into mechanical energy
US20110070083A1 (en) * 2009-09-19 2011-03-24 Salomo Murtonen Streamlined Wind Turbine Optimized for Laminar Layer
WO2011107816A1 (fr) 2010-03-05 2011-09-09 Gomez, Oscar Turbine tube à vitesse variable
WO2014022887A2 (fr) 2012-08-08 2014-02-13 C I Corporation Pty Ltd Ensemble turbine
WO2018112530A1 (fr) 2016-12-20 2018-06-28 C I Corporation Pty Ltd Turbine

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