KR200458527Y1 - Maximize Method of Converting efficiency Tidal current energy to Wind generating energy - Google Patents

Abstract

The present design is proportional to the flow rate of the algae (first fluid) passing through the pipe by installing and installing the injection pump pipe (001) with high pressure drop efficiency in parallel under the water surface as shown in [Representative Diagram]. By using the principle of pressure drop, the air guide pipe is connected to the lowest pressure generating point (009) in the injection pump pipe (003), so that the second fluid (air) in the air guide pipe due to the air pressure difference between the two pipes ) Is configured to be introduced and dispersed into the injection pump pipe through a connection passage (inlet) protected by a seawater (water) barrier (009).
In addition, by connecting a plurality of injection pump pipes to one air induction pipe 002 in parallel, the suction effect is doubled so that the air introduced from above the water passes through the injection pump pipe and passes through the seawater (water). , Adopted a method to maximize the wind power efficiency to an expected level by creating a continuous circulation process returning to the atmosphere and inducing the flow of the second fluid (air) in the air induction pipe to increase.
And the air inlet part [Fig. 2(c)] is configured to be able to increase the air flow in the air induction pipe by increasing the wind pressure in the air induction pipe with the incident wind in accordance with the wind direction on the water surface. After maximizing the efficiency of converting kinetic energy of air into rotational energy through the rotor (005) installed in the induction pipe, the purpose of the present invention was to be achieved by generating electricity (006) using a magnet and an induction coil. .
In addition, a method to theoretically infer a combination that can maximize the efficiency of the present invention through a theoretical formula derived by analyzing related physical quantities in order to research and develop and commercialize an efficient tidal current generator by converting tidal energy into wind energy Did.

Description

{Maximize Method of Converting efficiency Tidal current energy to Wind generating energy}

The present invention relates to a device that uses algal energy, and more particularly, to a device for converting algal energy into wind energy.

1. Technology of injection pump, water flow pump, etc. using pressure and density difference between heterogeneous fluids

2. Wind power generation technology

US registered patent US 6,568,181 B1, registration date 2003.5.27 US Published Patent US 2005/0099011 A1, Publication date 2005.5.12

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1. The present design is intended to solve the problems of patent document 1 and existing tidal power generation with the following characteristics.

① Outline of Patent Document 1

  Patent Document 1 above installs a Venturi tube (or multiple Venturi tubes) using the principle of a Venturi flowmeter near the mouth of a river or near the beach to increase the speed of the first fluid (algae or river flow) passing through the tube. Afterwards, by using the suction effect of the Venturi tube, the second fluid (water) flows from the top of the water into the Venturi tube below the water surface, thereby operating the centrifugal pump to produce electricity by flowing the fluid (water) induced in the suction tube. Do not have anything to do with this design (the second fluid used is different)

② Outline of Patent Document 2

  The above patent is similar to Patent Document 1 filed by the same person, and the Venturi tube using the principle of the Venturi flowmeter on the river (sea) and the speed of the first fluid (algae or river flow) passing through the tube at the end of the tube After installing the multi-venturi tube to increase the pressure, the suction effect of the venturi tube is used to inhale the second fluid (air) above the water surface to induce it below the water surface, and then the air pressure difference (atmospheric pressure and air pressure) in the chamber constructed below the water surface. Circulation circuit of air (380→255→270→265→290→) that separates the second fluid from the first fluid (sea water or water) by using the water pressure) so that the separated air can be sucked back into the air inlet installed on the water surface. 230→380, see Fig. 5 in the above patent), and generate electricity by turning the drive engine using the air flow derived therefrom, which has similarities to the present design, but has different physical components and principles.

③ Problems of existing algae development that Patent Literature 2 aims to solve

  Patent Document 2 was intended to extract energy from the flow of algae in order to solve various problems, such as damage to the rotating shaft, rotor (propeller), and supporting structures due to the direction of algae, marine life, and marine floating matters. .

④ Problems of Patent Document 2

a. Based on the law of thermodynamics, it is designed to return to the sea (river) through the relatively long closed circuit tube 255 (275, 210), despite the design being less efficient than the existing algae power generation. 250) Or, if the circuit tube is blocked by marine life or marine floating matters, its function is paralyzed, and there is a structural problem that can cause more serious obstacles than existing algae generation facilities. [See Fig. 5 above]

b. In developing electricity using the flow of air induced by repeating the difficult water phase change of mixing and separation of heterogeneous fluids, the heterogeneous air and water are not non-viscosity ideal fluids, so they are in a proportional relationship to accelerate the circulation of air. When the discharge rate of seawater increases, there is a problem that efficiency decreases because the amount of air discharged by mixing with water increases more than the amount of air separated by air pressure differences (seawater pressure and atmospheric pressure). ]

c. In order to separate the air by using the air pressure difference in the room (chamber, 270), an empty air pipe having a volume (πr ² ×h ₂ ) is connected below the water surface, so that the air separated from the room rotates through the circulation circuit installed on the water surface along the pipe. That is, the point of patent document 2, but when the pressure balance in the circuit pipe becomes unstable, there is a problem that seawater (or water) fills up with an empty air pipe due to water pressure, which may cause air circulation to fail.

d. Patent document consisting of operating the heat exchanger 290 to prevent the decrease in efficiency due to the circulation of seawater (water) particles forcedly evaporated by the pressure difference in the room where the different fluids are separated (Chamber, 270) along the air circuit 2, there is a problem in that the expected efficiency, which is not limited by the law of thermodynamics, is reduced.

2. Establish the theoretical basis to maximize the expected efficiency through analysis of the physical quantity of the sea (river) and atmosphere

3. Simplify and reduce the power generation facility of the present invention by utilizing the simplicity of the wind power generation facility

4. Solving the problems associated with the operation of the existing tidal power generation system

5. Algae energy is converted into wind power and used in real life

The wind turbine generator used in conjunction with the wind generator according to the present invention for solving the above problems and using tidal energy,
Venturi type injection pump pipe; And it is connected to the injection pump pipe and includes an air induction pipe for receiving air,
The air induction pipe is provided with a rotating device connected to the rotor of the generator inside the air induction pipe,
The injection pump pipe,
A coupling unit for connecting the venturi-type injection pump pipe and the air induction pipe; And
It is characterized in that it has an air flow tool formed in the coupling portion, which forms the lowest air pressure due to the flow rate difference in the process of passing through the inside of the injection pump pipe.
♣ Theoretical method

1. Theoretical analysis method for the method of producing effective power by converting the flow of algae (sea water, water) into the flow of air by analyzing the physical quantities of the incompressible first fluid (algae or water) and the compressible second fluid (air) build

2. Based on the inferred theory, search for ways to maximize expected efficiency through design and data analysis of expected devices

3. Through this, it overcomes various limiting factors (economic and environmental factors, etc.) in manufacturing, experimenting and commercializing the device of the present invention.

♣ Specification

1. Construct a system having a circulation system as shown in [Fig. 2] below the surface where algae with an effective flow rate is formed, and inject the injection pump pipe (001) that automatically rotates in one direction to the air induction pipe (002). Development of a power generation system that does not interfere with the flow of algae (water) by connecting in parallel

2. Inducing the pressure drop in the injection pipe (009) from the flow velocity difference generated in the process of the algae entering the injection pump pipe inlet (inlet pressure >> nozzle part pressure)

3. Connection of the air induction pipe introduced from above the water surface to the pressure drop point (009) in the injection pipe induced lower than atmospheric pressure (003)

4. Combining the air induction pipe at the (009) point in the injection pipe, which is in a relative vacuum, and then constructing a connecting passage, and then installing a seawater (water) backflow barrier, inlet the air pipe of the seawater (water) using the pressure difference between the two areas. Cut off and open the connecting passage (air inlet) by opening the blocking film using the suction effect by seawater (water) passing through the nozzle.

5. Designed to increase the pressure difference between the surface pressure (1 atm) and the injection pipe (009) as much as possible so that a large amount of air can be sucked in and flow (however, when the first air is introduced into the injection pipe, the efficiency of using the start pump is doubled, 004 )

6. Creation of a circulation structure of air that is returned to the atmosphere after mixing and dispersing (008) the seawater (water) and the injection pipe 007 in which the introduced air is compressed and sprayed through a nozzle.

7. Convert the kinetic energy of air from the air flow generated through the above process into rotational energy (installation of a rotor (005, fan or turbine) in the air induction pipe)

8. Converting rotational energy into electrical energy (connecting alternating current generator (006) composed of magnet and induction coil)

9. The injection pump pipe is connected in parallel to one air induction pipe to increase the air inflow amount and the air flow in the air induction pipe, and automatically rotate the inlet portion of the air induction pipe protruding above the water surface in the wind direction. Maximize the efficiency of this design by increasing the wind pressure

1. Pre-design and development of a device that can maximize efficiency by building a theoretical data analysis method

2. Contributing to the commercialization of algal power, the future energy resource

3. Realization of tidal current generation system with low cost and high efficiency structure of wind power generation

4. Prevention of environmental pollution through on-site assembly, offshore installation and operation of facilities through simplification and weight reduction of power generation facilities

5. Contributes to the improvement of the marine (underwater) ecosystem by supplying oxygen by dispersing the inflowing air in seawater (water)

1 is a conceptual diagram for explaining the movement of a microfluidic, Venturi Tube and Bernoulli theorem.
Figure 2 shows the structure and flow chart of the tidal current generation facility according to the present invention, in particular, the upper figure shows the injection pump pipe combined with the air induction pipe, the flow of fluid for each area of the invention and the rotor installed in the air induction pipe. It is a schematic diagram of the wind power generation of the present invention used.
3 is a pressure change curve of the fluid passing through the injection pump pipe of FIG.

For the implementation of the present invention, the theoretical equation is first extracted through the following physical quantity analysis, and then an equation for obtaining the effective power (power) for several assumptions is established, and the predicted equipment to which this is applied is theoretically designed to solve the year (expected efficiency). In order to verify the feasibility of the present design, we will try to find a way to maximize the efficiency by converting the tidal energy into wind power by adjusting the water content of each species.
2 is a view showing a wind power generator using algae energy according to a preferred embodiment of the present invention. This wind power generator includes an injection pump pipe (001) and an air induction pipe (002). The injection pump pipe and the air induction pipe are combined by a coupling part 003 of the air induction pipe. The start pump 004 is installed in the air induction pipe 002 near the coupling portion 003.
A rotating device 005 such as a fan or a turbine is installed in the air induction pipe 002, and a rotor of a generator 006 is connected to the rotating device 005. The injection pipe 007 is provided downstream of the injection pump pipe 001. Reference numeral 008 denotes air bubbles mixed with seawater (water) in the injection pipe. An air oil tool 009 is provided at the coupling part 003, and the air oil tool 009 is a reverse flow blocking membrane (automatic opening and closing by pressure difference) of sea water (water) to the air induction pipe and the sea water (water) side of the air. It serves as an inlet (connection passage). A rotary air inlet 010 is provided on the inlet side of the air induction pipe 002. This rotary air inlet 010 is provided with a wind rudder (011) installed at the top of the air inlet (010), which is usually projected on the water surface. The rotary air inlet 010 may be rotated to face the wind direction by the wind rudder (011). The rotary air inlet 010 may have a structure preventing foreign matter from entering. The offshore structure 012 serves to support the wind power generator of the present invention to float on the sea. The connection and lifting unit 013 may be used to connect and lift the marine structure 012 and the device of the present invention. The air induction pipe separation and sealing unit 014 enables the device of the present invention to separate the middle of the air induction pipe 002 during maintenance of the sea lift, and has a function of sealing the air induction pipe 002, for example It consists of a valve. The discharge pump 015 is a pump for discharging foreign substances in the air induction pipe 002.
Referring to FIG. 2, the injection pump pipe 001 is composed of an upstream side of a certain inner diameter, a middle side of which the inner diameter gradually decreases, and a downstream side of which the inner diameter gradually increases. On the distillation side of the injection pump pipe 001, a coupling part 003 is located, and on the downstream side, an injection pipe 007 is located. Air is introduced into the air induction pipe 002 through the air inlet 010 floating on the water surface, and seawater or water is introduced into the injection pump pipe 001 from the left side of the drawing and through the injection pipe 007 Spills outside. The fluid flowing inside the injection pump pipe 001 causes the air in the air induction pipe 002 to flow out through the injection pipe 007. In particular, the air oil tool 009 formed in the coupling portion 003 is an injection pump pipe that has a minimum air pressure in the injection pump pipe, for example, a pressure lower than atmospheric pressure due to a flow rate difference in a process in which the algae pass through the injection pump pipe 001. It is formed in the (001) part.

◆ Mass Flux

In FIG. 1, if the velocity of the microfluidic movement is v, the microdistance is Δl=vΔt (Δt is the microtime), so the mass component of the microfluid (fluid with density ρ), Δm = ρAΔl Because of

Δm = ρAvΔt or Δm/Δt = ρAv (1)

The mass of a fluid that crosses an arbitrary cross-sectional area per unit time, that is, the mass flux, is the same as the mass flux between two points, as the density of the fluid does not change with time. Therefore, at two points (A) and (B) of the Venturi Building [Figure 1]

ρ ₁ A ₁ v ₁ = ρ ₂ A ₂ v ₂ = constant (2)

That is, it can be seen that the velocity of the fluid, which is an incompressible normal flow, is inversely proportional to the cross-sectional area.

◆ The work done by the kinetic energy of a fluid per unit time [power (P)]

In general, the kinetic energy (½mv ² ) of a fluid (air, water, and algae) having a density ρ flowing through a canal of a cross-section A (radius r) at a velocity of v is the work rate (Power)

(Power) = ½(dm/dt)v ² (3)

And from equation (1)

(Power) = ½ρAv ³ = ½ρ(πr ² )v ³ (4)

As a result, the power value (power, power) of the power generation facility proportional to the cube of the flow velocity (wind velocity or tidal velocity) can be obtained.

◆ Bernoulli equation

The Bernoulli Equation is a work (W) and the kinetic energy (E _k ) of the fluid caused by the movement of the fluid by an arbitrary distance (L) and height (h) by applying pressure (P) to an arbitrary cross-sectional area (A). ) It is based on Newtonian mechanics that it is equal to the amount of change.

The work of pressure (ΔF = ΔP?A) from an arbitrary system where the phase of the fluid is changed by the action of pressure as shown in the upper figure of [Fig. 1] is W = F?L = P?A?Δl (Δl is the small segment distance )to be. Also, when g is called gravitational acceleration, the work done by gravity is equal to Δmg(h ₂ -h ₁ ). So the whole thing

W = P ₁ A ₁ Δl ₁ -P ₂ A ₂ Δl ₂ -Δmg(h ₂ -h ₁ ) (5)

to be. AΔl means the volume ΔV of the partitioned portion, so if the density of the fluid is ρ, ρ=Δm/ΔV, and AΔl=Δm/ρ, so W = (P ₁ -P ₂ )(Δm/ρ)-Δmg(h ₂ -h ₁ ).

The amount of change in kinetic energy (ΔE _k ) generated by micro-motion of a microfluidic mass (Δm) is ΔE _k = ½Δm(v ₂ ² -v ₁ ² )

, W = ΔE _k

(P ₁ -P ₂ )(Δm/ρ)- Δmg(h ₂ -h ₁ ) = ½Δm(v ₂ ² -v ₁ ² ) (6)

Therefore, in the case of a fluid that is a non-compressible, specific surface, or non-viscous normal flow, by erasing Δm from Eq. (6), the Bernoulli theorem can be induced as follows.

P ₁ + ½ρv ₁ ² + ρgh ₁ = P ₂ + ½ρv ₂ ² + ρgh ₂ = Schedule (7)

If there is no difference in height (h) between particles passing through points (A) and (B), as shown in [Fig. 1], the g (gravity acceleration) value is constant. B) It is possible to find the pressure difference at the point.

P ₁ -P ₂ = ½ρv ₂ ² [1-(A ₂ /A ₁ ) ² ] (8)

From the Bernoulli theorem, the fluid flowing into the injection pump pipe as shown in [Figure 2] experiences a rapid speed increase (pressure drop) as shown in [Figure 3] as it passes through the injection pump pipe, and in the process of achieving equilibrium with the surrounding fluid, On the contrary, it can be seen that the speed decrease (pressure increase) is experienced.

Therefore, the following method was adopted in this design so that the flow velocity in the injection pump pipe was not exponentially increased or decreased for a relatively short period of time, so as not to interfere with effective energy conversion.

1. Threshold due to induction resistance of seawater (water) when air is introduced into seawater (water) by creating an instantaneous quasi-vacuum region (009) in the injection pipe (minimum force required to introduce air into seawater (water)) How to lower

2. The method of preventing the speed of the accelerated fluid passing through the injection pipe 007 from being rapidly reduced by significantly reducing the density of the fluid passing through the nozzle of the injection pump pipe 001 through mixing of low density heterogeneous fluids.

3. A catalyst that delays the process in which the fluid passing through the injection pipe is balanced with the induced drag of the surrounding sea water (water) with air bubbles mixed with sea water (water) in the injection pipe and sprayed in the direction of travel of the sea water (water). How to do

4. Method of reducing the density of the fluid in the direction of seawater (water) by increasing the size of the oil pipe at the outlet side of the injection pipe (007)

5. How to reduce the density (or water pressure) of seawater (water) at the outlet side of the injection pump pipe by using the property that air bubbles outside the injection pipe expand adiabatically in seawater (water) and rise above the water surface.

In this way, the air introduced from the top of the water surface along the air induction pipe passes through the injection pump pipe installed below the water surface and diffuses into the seawater (water), and then creates a circulation process that returns to the atmosphere and the air that can be obtained from it We intend to produce effective power (one rate) through wind power generation from the air flow in the induction pipe.

◆ Buoyancy due to the movement of air particles in the water surface [primary induced drag of seawater (water)]

In general, in order to move the air below the water surface, it is necessary to do the amount of work opposite to the buoyancy proportional to the volume of the air. For example, if a small air cylinder having a radius r and a height l (l<<0) is simulated, air cylinders having a volume of (πr ² ×Δl) are continuously taken from the point (C) of [Fig. 2] to (D). It means what you need to move up to. If you display the buoyancy of this air column,

F = ρ'(πr ² ×Δl)×g (9)

So, what you need to do to move the air column to depth h against the buoyancy

W = F?h = [ρ'(πr ² ×Δl)×g]?h (10)

to be.

Δl, which represents the height of the air column, refers to the differential value for the distance (Δl=v?dt) that the section of a circle with a cross-sectional area (πr ² ) moves at a velocity of v for dt hours. In this case, the same holds true.

Therefore, the buoyancy [Lif, induced drag of seawater (water)] per hour as the micro-air cylinder (cross-section A) moved at the speed of v along the air induction pipe 002 of FIG. The work rate [(Power) _w ], meaning work (loss of energy), is as follows.

(Power) _l = [(ρ'Av)×g]?h (11)

◆ Work done per unit time by water pressure (P) per minute area (A) (2nd induced drag of seawater (water))

When the area vector component perpendicular to the surface of the heterogeneous fluid placed at the water pressure P is ΔA (microsurface with a cross-sectional area of πr ² ), the force acting on ΔA is ΔF = P?ΔA. The fact that the air has substantially progressed (permeated) into the seawater means that the microair surface with a surface area of ΔA travels Δl distance into the seawater (water) for Δt at a velocity of v, so the water pressure P is a microair column per unit time. The work done in ΔW=ΔF?Δl can be expressed as follows.

           ΔW=ΔF?Δl=(P?ΔA)?Δl=(P?ΔA)×(v?Δt)

Therefore, when both sides are integrated with respect to time, the work of hydraulic pressure P on the micro-air per unit time, that is, the power [(Power) _p ] is as follows.

(Power) _p = P?[π(r) ² ×v] (12)

♣ Derivation of Equation of _Effect (P _effect ) by Energy Conservation Law

The energy required to move the heterogeneous fluid (air) below the water surface (energy loss against buoyancy) in the total amount of energy that can be generated by a tidal current (Eq. (4)) according to the thermodynamic law (energy conservation law, etc.) The energy that is actually used to induce the flow of air in the air induction pipe is the extra energy minus the energy required to infiltrate the seawater (water) when the heterogeneous fluid (air) in the space where water pressure exists It can be regarded as equal to the total amount of energy (the law of conservation of energy).

(Power) _air = (Power) _water -(Power) _l- (Power) _p (13)

Here, (Power) _water is the total energy that can be produced by algae, and (Power) _air is the wind power generated by air flow in the air induction pipe.

Therefore, (Power) _air >> If it becomes 0, the problem that the present invention intends to solve,'how to maximize the conversion efficiency of algae energy to wind energy,' will be a problem that can be solved.

In addition, when n injection pump pipes are connected in parallel to one air induction pipe, the total amount of energy generated by algae is multiplied by that number.

(Power) _air = n×(Power) _water -(Power) _l- (Power) _p (14)

You can derive an equation like

Water pressure P ₁ , Density ρ, mean flow velocity v ₁ The energy that can be produced using algae is normal by placing a rotor (propeller or turbine, etc.) at the injection pump pipe inlet [(A), diameter=R ₁ , radius=r ₁ ] of [Figure 2] placed in the place where phosphoric algae flows. In the case of a fluid, it can be said that Newtonian dynamics ( _b ) equals the amount of energy that can be produced by a rotor placed in a fluid passing a point (diameter = R ₂ , radius = r ₂ ) at a rate of v ₂ . If the energy that can be produced by algae flowing into is the maximum energy that algae can produce, from (4) (Power) _water You can get the value.

Therefore, the air flowing in along the air induction pipes (P ₃ ,v ₃ ,A ₃ ) is connected to the injection pump pipe located below the water surface (water depth h meter, air pressure P ₁ ) and the connection passage (P ₄₎ installed at the interface between the air induction pipe. The air circulation starts only when the microair surface with a cross-sectional area of π(r ₄ ) ² through ,v ₄ ,A ₄ ) penetrates into seawater (water) at a rate of v ₄ per unit time. Substituting the values of equation (4), equation (11), and equation (12)

½ρ'(πr ₃ ² )v ₃ ³ = n×[½ρ(πr ₁ ² )v ₁ ³ ]

-[(ρ'πr ₃ ² v ₃ )×g]?h-P ₁ ?[π(r ₄ ) ² ×v ₄ ]

Same as If the air induction pipe (cross-section A ₃ ) maintains the same cross-sectional area up to the connection interface between the injection pump pipe and the air induction pipe, and if the cross-sectional area (A ₄ ) changes near the connection passage (air inlet, 009) installed at the interface Since the velocity component (v ₃ ) of the same fluid within is approximated (v ₃ ≒v ₄ ) to the velocity component of air particles on the cross-section A ₄ surface, the above equation is parameterized by v ₃ as below. It can be substituted by the third equation.

½ρ'(πr ₃ ² )v ₃ ³ = n×[½ρ(πr ₁ ² )v ₁ ³ ]

-[(ρ'πr ₃ ² v ₃ )×g]?h-P ₁ ?[π(r ₄ ) ² ×v ₃ ] (15)

♣ Derivation of Equation of _Effect (P _effect ) by Bernoulli's Theorem

In Fig. 2, assuming that the point between (B) of the injection pump pipe and (D) of the air induction pipe is infinitely close, and the two fluids are normal and incompressible fluids, the pressure at the point (B) of the injection pump pipe ( P ₂ ) and the pressure (P ₄ ) of the (D) part of the air induction pipe are P ₂ at the interface (009). 등 Since the equivalent principle of P ₄ can be established, the velocity (v ₄ ) of the fluid on the air induction connection path can be obtained from equations (2) and (8).

P ₃ -P ₄ = ½ρ'v ₄ ² [1-(A ₄ /A ₃ ) ² ]

v ₄ = {2(P ₃ -P ₄ )/ρ'[1-(A ₄ /A ₃ ) ² ]} ^½ (16)

In general, the rate of pressure change below the water surface increases by an average of 1 atm per 10m, so P ₁ between pressures at each point in [Figure 2] > P ₃ > P ₂ 관계 The relationship of P ₄ is formed, and if an injection pump pipe to which an air induction pipe is connected is placed as shown in [FIG. 2] where there is an algae, the fluid velocity at each point is v ₁ > 0, v ₂ > v ₁ Is, the flow rate (v ₂ ) and The flow velocity (v ₄ ) is proportional, so v ₃ > A zero relationship will be established. Also v ₄ If 0> v ₃ from equation (2) > 0.

Therefore, v _{3 in the} air induction pipe Since there is a wind speed of> 0, the power value (power, power) of wind power proportional to the cube of the wind speed can be predicted from Eq. (4): power _air = ½ρ'A ₃ v ₃ ³ > 0.

◆ Obtaining expected efficiency from a virtual device designed by applying this design

In order to implement the present invention, the following virtual device is designed based on the physical theory derived from above, and the expected amount of power that can be obtained from this device is theoretically extracted to obtain the expected efficiency according to the practice of the present invention.

?Virtual device according to the present invention?

After the algae with a flow rate of 3 m/sec of the seawater (water) 10 m below the water depth flowed into the inlet of two injection pump pipes each having a diameter of 3 m, passing through a nozzle having a diameter of 0.6 m each [FIG. 2] The rotor installed in the (005) part of [Fig. 2] proceeds to the right of [Sea (water) proceeding direction], and the air introduced along the air induction pipe (diameter 1 m) installed on the water surface (atmospheric pressure 1 atm) It passes through a 1m diameter fan or turbine, etc.) and enters the air inlet passage (0.2 m in diameter) at point (009) in (D) of [Fig. 2] and is distributed in the right direction through the injection pipe of [Fig. 2]. When you do, what is the effective _air that can be obtained from the rotor installed in the air induction pipe?

♣ Power _air calculation by energy conservation law

If the relationship between work and pressure summarized in [Theorem of Code] and the data on the above devices are put into Equation (15),

½ρ'(πr ₃ ² )v ₃ ³ = n×[½ρ(πr ₁ ² )v ₁ ³ ]

-[(ρ'πr ₃ ² v ₃ )×g]?h-P ₁ ?[π(r ₄ ) ² ×v ₃ ]

Because of

½(1.225kg/m ³ )[3.14×(0.5m) ² ]×v ₃ ³

= 2×{½(1,030kg/m ³ )[3.14×(1.5m) ² ](3m/sec) ³ }

-[(1.225kg/m ³ )[3.14×(0.5m) ² ]×v ₃ ×(9.8m/sec ² )×(10m)

-2×(1,013)×(100)[(kg?m/sec ² )]/(m) ² ×[3.14×(0.1m) ² ]×v ₃

from

v ₃ ³ + 13,451v ₃ -409,329 = 0 (17)

As shown, we can obtain the cubic equation with v ₃ as a parameter. If the value of v ₃ is obtained from the root formula of the cubic equation (x ³ +px+q=0),

v ₃ ≒ 28.7 m/sec (18)

Substituting this value into Eq. (4), the maximum effective power ( _air ) expected when the efficiency is maximized by converting the tidal energy into wind power is obtained from this design.

(Power) _air = 1.14 × 10 ⁴ W (Watt) (19)

In other words, it can be seen from the above results that the effective efficiency that can be obtained through the present design [Power, ( _air ) _air ] >> 0 can leak significant expected efficiency from the present design.

♣ Power _air calculation by Bernoulli's theorem

If the radius of the circular pipe through which the fluid flows is r, its cross-sectional area A=πr ² to be. Therefore, the velocity (v ₂ ) at the moment when seawater (water) having v ₁ =3 m/sec flowing into the injection pump pipe passes through the nozzle point of the injection pump pipe is obtained from Equation (1).

v ₂ = v ₁ (A ₁ /A ₂ ) = (3m/sec)?π(1.5m) ² /π(0.3m) ²

                      ≒ 75 m/sec (20)

Can be seen.

If the efficiency is obtained by Bernoulli's theorem for the above-mentioned virtual device, the pressure at 10 m depth is twice the water pressure (1 atm) depending on the rate of pressure change in seawater (water) (increase by 1 atmosphere per 10 m). (2 atm), and the density of seawater (water) is 1,030 kg/m ^3. After obtaining the minimum pressure value (P ₂ ) induced in the injection pump pipe from Eq. (8), the routine summarized in [Description of Symbols] Converted using the unit of pressure, it can be calculated as follows.

(2 atm)- P ₂ = ½(1,030kg/m ³ )×(75m/sec) ² ×[1-π(0.3) ² /π(1.5m) ² ]

= 2,781,000 kg/msec ² (≡ N/m ² )=2,781,000Pa≒ (27.5 atm)

Therefore, the minimum pressure value (P ₂ ) in the injection pump pipe is

P ₂ ≒-25.5 atm (21)

It becomes.

That is, since the pressure at the point where the injection pump pipe and the air induction pipe are connected is significantly lower than the surface pressure (1 atm), air above the water surface is sucked from the air induction pipe by the suction effect, flows into the injection pump pipe, and follows the injection pipe. It can flow in the right direction.

In the case of an abnormal fluid, assuming that the interface between the fluids and the connecting portion of the air induction pipe and the injection pump pipe in the present design [Fig. 2 (D), 009] are infinitely close, P ₄ ≒P ₂ at the interface. Since the air flow rate (v ₄ ) is obtained at this point when the air density ρ'= 1.225kg/m ³ at 1 atm 15℃,

(1 atm)-(-25.5 atm) = ½ (1.225kg/m ³ )×v ₄ ² ×[1-π(0.1m) ² /π(0.5m) ² ]

Becomes. If the left side value and the right side value are converted using the unit table summarized in [Explanation of Symbols] from the above equation, the left side value is (26.5 atm×1,013×100) Pa = 2,684,450 kg/m?sec, and the right side value is 0.588× v ₄ ² ?(kg/m ³ ). therefore

v ₄ ² = (2,684,450 kg/m?sec)/(0.588kg/m ³ ) = 4,565,392 m ² /sec ²

v ₄ ≒ 2,137 m/sec (22)

Is, v ₃ from equation (2) =(A ₄ /A ₃ )×v ₄ =[(πr ₃ ² )/(πr ₄ ² )]×v ₄ =(r ₃ ² )/(r ₄ ² )×v ₄ Because of,

v ₃ ≒ 85.5 m/sec (23)

Becomes.

Like this v ₄ Becomes subsonic and the value of equation (23) is put in equation (4) (Power) _air The total amount of energy that algae can produce when the sought value (Power) it is 1.5 times more wind energy to produce than the _water that causes the phenomenon that violates the laws of thermodynamics (energy conservation) useful to use the Bernoulli equation This is the result of not considering the following constraints when obtaining.

1. Bernoulli's Theorem is a theoretical value for incompressible fluids, so it is generally reasonable in the case of liquid fluids, but it causes significant errors in the case of gaseous fluids.

2. Bernoulli's theorem is a theoretical formula for steady flow, so there is a limit to its application to the same case as the present invention where velocity is given as a function of time.

3. Bernoulli's theorem is a non-viscous fluid and is established on the assumption that the total energy in the system must be conserved, so there are limitations on using Bernoulli's theorem in the case of the present invention in which a spray pump or the like is in the system.

Therefore, the calculated values derived from Eq. (22) and Eq. (23) cannot be adopted as useful values for the present invention.

■ Conclusion

From the above process, the task of the present design for'maximizing the conversion efficiency of algae energy to wind power' is the effective power (power value) _air as shown in Eq. (19). = 1.14 × 10 ⁴ W(Watt) has been reached, and a meaningful conclusion has been reached.

In addition, I think that it can be helpful to construct a more systematic and economical power generation facility by having the means to theoretically analyze and verify the device required by the present design by utilizing the equation derived by the present design as above.

Finally, the following function values are not considered because they are considered to have no significant effect in drawing the above conclusions;

1. Potential energy change amount as air particles freely fall in height (10m) along the air induction pipe

2. Since the air induction pipe is designed not to be deformed at all by external water pressure, the water pressure having a difference according to the change in the water depth acts on the air particles in the air induction pipe (pressure), so that the buoyancy (sea water (water) drag against air) It cannot be said that it does more work than ], but the change in water pressure is the amount of change due to work done to air particles in the air induction pipe.

3. The amount of change in kinetic energy caused by the wind passing around the air inlet installed on the water surface entering the air inlet and increasing the air flow in the air induction pipe.

The function value (sum of the total function value> 0) will act in the direction of increasing the efficiency of the device according to the present invention rather than in the direction of decreasing the efficiency. Could be used.

This design is the south coast of Korea [Uldolmok Helical Algae Power Generation (2003~2009), Yeosu Myodo HAT Floating Algae Power Generation (2006~2008), Hadong Waterway Helical Algae Power Generation (2006), Wando Transverse Water Flow Algae Power Generation (2008) Year), etc.], the plan to install the rotating shaft and rotor below the sea level to develop algae was the same problem as mentioned above;

In view of the reality of suffering from various problems such as damage to the rotating shaft, rotor (propeller), and supporting structures due to the direction of the tide, marine life, and marine floating matters, I think it can be presented as a new alternative for domestic tide development. do.

001: Venturi type injection pump pipe
002: air induction pipe
003: coupling part
004: start pump
005: rotating machine
006: Generator
007: spray pipe
008: air bubbles mixed with seawater (water) in the injection pipe
009: Air oil tool
010: rotary air inlet
011: Wind rudder
012: Offshore structure supporting the device of the present invention at sea
014: Air induction pipe separation and sealing
015: discharge pump
[Description of each symbol shown in FIG. 2]
＊ P ₁ , v ₁ and A ₁ indicate the fluid pressure, velocity and cross-sectional area of each inlet (A), and P ₂ , v ₂ and A ₂ each spray pump pipe nozzle (minimum cross-sectional area) (b ) Indicates the fluid pressure, velocity, and cross-sectional area at the point. ρ is the density of sea water (water), and the density of sea water is about ρ = 1,030 kg/m ³ .
＊ P ₃ , v ₃ , A ₃ indicate the air induction pipe (C) point of each [Fig. 2] and the fluid pressure, velocity and cross-sectional area in the air induction pipe, P ₄ , v ₄ , A ₄ each spray It is the fluid pressure, velocity, and cross-sectional area at point (D) of the air induction pipe (D) connected to point (B) of the pump pipe. Here, ρ'refers to the density of air (1.0225 kg/m ³ at 15°C and 1 atmosphere).

Claims (3)

In the wind power generation device that is used in conjunction with a wind power generator and uses tidal energy,
Venturi type injection pump pipe (001); And
It is connected to the injection pump pipe and includes an air induction pipe (002) for receiving air,
The air induction pipe includes a rotating device 005 connected to the rotor 005 of the wind generator inside the air induction pipe,
The injection pump pipe
A coupling part (003) for connecting the venturi-type injection pump pipe and the air induction pipe; And
Wind power generation device using the algae energy, characterized in that it comprises an air flow tool (009) formed in the coupling portion to form a minimum pressure due to the flow rate difference in the process of passing the algae inside the injection pump pipe. delete The method of claim 1, wherein the air induction pipe (002)
An air inlet 010 provided at an upper side of the inlet of the air induction pipe; And
It has a wind rudder (011) installed on the top of the air inlet,
The air inlet has a structure that can be rotated relative to the other portion of the air induction pipe to the direction of the wind by the wind rudder wind power device using algae energy.

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