WO2016147019A1 - Hydrokinetic machine - Google Patents

Hydrokinetic machine Download PDF

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Publication number
WO2016147019A1
WO2016147019A1 PCT/HU2016/050010 HU2016050010W WO2016147019A1 WO 2016147019 A1 WO2016147019 A1 WO 2016147019A1 HU 2016050010 W HU2016050010 W HU 2016050010W WO 2016147019 A1 WO2016147019 A1 WO 2016147019A1
Authority
WO
WIPO (PCT)
Prior art keywords
fact
inlet
stream
machine described
water
Prior art date
Application number
PCT/HU2016/050010
Other languages
French (fr)
Inventor
Istvan Magai
Ferenc VIKARIUS
Original Assignee
Istvan Magai
Vikarius Ferenc
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 Istvan Magai, Vikarius Ferenc filed Critical Istvan Magai
Publication of WO2016147019A1 publication Critical patent/WO2016147019A1/en

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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
    • F03B13/10—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
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/16—Stators
    • 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
    • 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
    • F03B3/04—Machines or engines of reaction type; Parts or details peculiar thereto with substantially axial flow throughout rotors, e.g. propeller turbines
    • 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
    • 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
    • Y02E10/20—Hydro energy

Definitions

  • the subject of the invention is hydro kinetic machine, which is used to extract mechanical work from water stream using acceleration of the flowing water.
  • the kinetic energy of the water stream in the river or ocean current is applyed for generating electricity by hydro kinetic machines. It is hard to use turbines in a water with speed lower than 1.4 m/s or in a shallow water.
  • the disadvantage of these solutions is that less than 33% of the total kinetic energy is extractable in an ideal case. If there is a water accelerator - confuser - device to increase the speed of the water before the turbine it can increase the speed with some percentage, but the basic speed is reduced by the stagnation pressure.
  • the extractable power is equal to the product of the force and the speed.
  • the power is proportional to the density of the water, to the cross section and the 3 rd exponent of the water speed. Further disadvantage, that there is impossible to use larger turbine in a shallow water. You can use only parallel turbines with higher costs. Further disadvantage that most of the affected water flow through the turbine so it causes significant environmental problem.
  • the present state of is characterized by the following patents:
  • the purpose of our invention is to eliminate the disadvantageous features of the machine described above and to develop advantageous features.
  • the subject of the invention is hydro kinetic machine, which is used to extract mechanical work from water stream using acceleration of the flowing water.
  • the water accelerator part of the machine can be many time longer than its height is. This geometry ensures high mechanical resistance.
  • the accelerator 2, the collector 3 and the turbine-generator 6 are fixed vertically to the water stream direction 15 under the water surface.
  • the hydro kinetic machine is fixed by the collector 3 horizontally on the bank or on the watercourse.
  • the dynamic pressure of the total stream 14 pushes the water to the surface of the accelerator 2 where it is accelerated because of the angle of change 9.
  • the inlet streamline 16 shows the way of the accelerated water to the inlet 8.
  • the accelerated water goes through the collector 3 to the turbine-generator to extract mechanical and electric energy.
  • the outlet streamline 17 shows the flowing out of the used water with reduced energy.
  • the water stream is characterized by the vector 4, 5, 11, 13 and streamline 10, inlet streamline 16 and outlet streamline 17.
  • the length of the vectors show the approximate rate of the water speed.
  • the vector 11 characterizes the speed of the total stream 14.
  • the inlet stream 12 gives the accelerated stream 7 in the inlet 8.
  • the surface of the accelerator 2 changes the direction of the stream that causes acceleration as it is showed along the streamline 10.
  • the change of the vector causes dynamic pressure on the molecules and it causes the kinetic energy concentration in the inlet stream 12.
  • the other part of the total stream 14 loses energy and speed.
  • the dynamic pressure, caused by the changed direction accelerates the molecules toward to the accelerator(2).
  • This process is similar to the speed distribution of the Rankine-kind swirling distribution.
  • Most of the affected but decelerated molecules flow around the collector 3.
  • the kinetic energy increasing of the accelerated stream 7 is equal to the kinetic energy decreasing of the decelerated water in an ideal case.
  • the collector 3 collects the higher speed part of the water only, so the average speed in that is higher than the hydrokinetic machines had without accelerator unit.
  • the acceleration rate of the accelerated stream 7 and the total stream 14 can reach the 3.

Landscapes

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

Abstract

The subject of the invention is hydrokinetic machine, which is used to extract mechanical work from water stream using acceleration of the flowing water. The accelerator(2) with its concave surface is ended at the inlet(8), that is connected to the turbine-generator(6) by the collector(3), wile the cross section of the inlet stream(12) and the cross section of the inlet(8) define the angle of change(9), that angle of change(9) is larger than 15 degree.

Description

HYDROKINETIC MACHINE
The subject of the invention is hydro kinetic machine, which is used to extract mechanical work from water stream using acceleration of the flowing water. As is known, the kinetic energy of the water stream in the river or ocean current is applyed for generating electricity by hydro kinetic machines. It is hard to use turbines in a water with speed lower than 1.4 m/s or in a shallow water. The disadvantage of these solutions is that less than 33% of the total kinetic energy is extractable in an ideal case. If there is a water accelerator - confuser - device to increase the speed of the water before the turbine it can increase the speed with some percentage, but the basic speed is reduced by the stagnation pressure. The extractable power is equal to the product of the force and the speed. The power is proportional to the density of the water, to the cross section and the 3rd exponent of the water speed. Further disadvantage, that there is impossible to use larger turbine in a shallow water. You can use only parallel turbines with higher costs. Further disadvantage that most of the affected water flow through the turbine so it causes significant environmental problem. The present state of is characterized by the following patents:
US 8,022,567; US 8,072,089; US 2011/0058929; US2014/0159370; WO 2011101693.
The solution closest to our invention from the above list is US
8,072,089. There are parallel turbines to increase the power. The more turbine are used paralelly the more costs are needed.
The purpose of our invention is to eliminate the disadvantageous features of the machine described above and to develop advantageous features.
The subject of the invention is hydro kinetic machine, which is used to extract mechanical work from water stream using acceleration of the flowing water.
It is an advantageous feature that the water accelerator part of the machine can be many time longer than its height is. This geometry ensures high mechanical resistance.
It is an advantageous feature that only the accelerated water flows through the turbine. The larger part of slower water flows around the machine while the dynamic effect of it accelerates the water stream at the accelerator surface. This solution allows to use smaller turbine size. The smaller amount of collected water with higher speed causes less damage to the living structures. The turbine works on higher efficiency than the regular stream allows. It is an advantageous feature that the applicable water speed can be lower than 1.4 m/s. There isn't need for the dam at most of the rivers.
We describe the invention in more detail with the help of the attached drawing, which depicts the copy of the cut off shape of the apparatus according to the invention.
In the attached drawing:
Figure 1. The speed distribution in cross section Figure 2. Cross section of the hydrokinetic machine Legend:
1. water stream
2. accelerator
3. collector
4. vector
5. vector
6. turbine-generator
7. accelerated stream
8. inlet
9. angle of change
10. streamline
11. vector
12. inlet stream
13. vector
14. total stream
15. direction
16. inlet streamline
17. outlet streamline
The main parts of the hydrokinetic machine:
The accelerator 2, the collector 3 and the turbine-generator 6 are fixed vertically to the water stream direction 15 under the water surface. First, the operation of the hydrokinetic machine will be described based upon Figure 1. and 2. The hydro kinetic machine is fixed by the collector 3 horizontally on the bank or on the watercourse. The dynamic pressure of the total stream 14 pushes the water to the surface of the accelerator 2 where it is accelerated because of the angle of change 9. The inlet streamline 16 shows the way of the accelerated water to the inlet 8. The accelerated water goes through the collector 3 to the turbine-generator to extract mechanical and electric energy. The outlet streamline 17 shows the flowing out of the used water with reduced energy.
The water stream is characterized by the vector 4, 5, 11, 13 and streamline 10, inlet streamline 16 and outlet streamline 17. The length of the vectors show the approximate rate of the water speed. The vector 11 characterizes the speed of the total stream 14.
The inlet stream 12 gives the accelerated stream 7 in the inlet 8.
The surface of the accelerator 2 changes the direction of the stream that causes acceleration as it is showed along the streamline 10. The change of the vector causes dynamic pressure on the molecules and it causes the kinetic energy concentration in the inlet stream 12. The other part of the total stream 14 loses energy and speed. The dynamic pressure, caused by the changed direction accelerates the molecules toward to the accelerator(2). This process is similar to the speed distribution of the Rankine-kind swirling distribution. Most of the affected but decelerated molecules flow around the collector 3. The kinetic energy increasing of the accelerated stream 7 is equal to the kinetic energy decreasing of the decelerated water in an ideal case. The collector 3 collects the higher speed part of the water only, so the average speed in that is higher than the hydrokinetic machines had without accelerator unit.
The acceleration rate of the accelerated stream 7 and the total stream 14 can reach the 3.

Claims

PATENT CLAIMS
1. Hydrokinetic machine with accelerator, inlet, collector, turbine- generator, inlet stream characterized by the fact that the accelerator^ ) with its concave surface is ended at the inlet(8), that is connected to the turbine-generator(6) by the collector(3), wile the cross section of the inlet stream(12) and the cross section of the inlet(8) define the angle of change(9), that angle of change(9) is larger than 15 degree.
2. The hydrokinetic machine described in claim 1. characterised by the fact that the angle of the streamline (10) and the vector( 11,13) is increasing to the value of angle of change(9) until the position of the inlet(8).
3. The hydrokinetic machine described in claim 1. characterised by the fact that the accelerator(2) has a concave deflector surface at least.
4. The hydrokinetic machine described in claim 1. characterised by the fact that the water stream(l) working fluid is air with constant density.
5. The hydrokinetic machine described in claim 1. characterised by the fact that only the water molecules of the accelerated stream(7) that are part of the total stream(14) provide the water to the collector(3).
6. The hydrokinetic machine described in claim 1. characterised by the fact that the turbine-generator(6) is an aerodynamic machine.
7. The hydrokinetic machine described in claim 1. characterised by the fact that the horizontal length of the collector(3) and horizontal length of the accelerator^ ) is more than 1 m.
8. The hydrokinetic machine described in claim 1. characterised by the fact that the rate of the length and maximal cross size of the collector(3) more than 3.
9. The hydrokinetic machine described in claim 1. characterised by the fact that the inlet(8) is protected by a screen.
10. The hydrokinetic machine described in claim 1. characterised by the fact that the angle of change(9) along the streamline(lO) or along the vector(l l) and vector(5) is greater than 15 degree.
The claimants: Istvan MAGAI, Ferenc VIKARIUS
PCT/HU2016/050010 2015-03-16 2016-03-15 Hydrokinetic machine WO2016147019A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HUP1500110 2015-03-16
HU1500110A HUP1500110A2 (en) 2015-03-16 2015-03-16 Hydropower machine for streaming liquid

Publications (1)

Publication Number Publication Date
WO2016147019A1 true WO2016147019A1 (en) 2016-09-22

Family

ID=89991758

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU2016/050010 WO2016147019A1 (en) 2015-03-16 2016-03-15 Hydrokinetic machine

Country Status (2)

Country Link
HU (1) HUP1500110A2 (en)
WO (1) WO2016147019A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11319920B2 (en) 2019-03-08 2022-05-03 Big Moon Power, Inc. Systems and methods for hydro-based electric power generation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA34491C2 (en) * 1996-09-03 2001-03-15
RU2424444C1 (en) * 2010-02-08 2011-07-20 Открытое акционерное общество "Завод им. В.А. Дегтярева" Hydraulic flow energy conversion method and vortex hydraulic turbine for its implementation
WO2011158031A1 (en) * 2010-06-17 2011-12-22 Ronald Davenport Wilson Power generator
WO2013190304A1 (en) * 2012-06-20 2013-12-27 Verderg Ltd Apparatus for converting energy from fluid flow

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA34491C2 (en) * 1996-09-03 2001-03-15
RU2424444C1 (en) * 2010-02-08 2011-07-20 Открытое акционерное общество "Завод им. В.А. Дегтярева" Hydraulic flow energy conversion method and vortex hydraulic turbine for its implementation
WO2011158031A1 (en) * 2010-06-17 2011-12-22 Ronald Davenport Wilson Power generator
WO2013190304A1 (en) * 2012-06-20 2013-12-27 Verderg Ltd Apparatus for converting energy from fluid flow

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11319920B2 (en) 2019-03-08 2022-05-03 Big Moon Power, Inc. Systems and methods for hydro-based electric power generation
US11835025B2 (en) 2019-03-08 2023-12-05 Big Moon Power, Inc. Systems and methods for hydro-based electric power generation

Also Published As

Publication number Publication date
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