Wind-powered new biofan

Abstract

We provide a wind-powered bio-fan that uses a small amount of wind to lift water from the bottom and spread it towards the surface. [Solution] By taking advantage of the characteristic that the power to rotate the water-spinning plate is proportional to the product of the length of the arm and the wind force acting on the arm, we introduced four basic equations necessary for designing a new wind-powered biofan. This made it possible to develop a new type of biofan that can revitalize lakes, bays, and oceans into abundant fishing grounds with the vast amount of oxygen produced by activating photosynthesis in vast bodies of water, and can also suppress ocean acidification.

Description

Detailed description of the invention in the field of technology

[0001] The development of a technology that uses a biofan to cultivate water, supplying oxygen to the bottom to promote the growth of fish and shellfish, and then spreading the bottom water over a vast surface area to expose it to wind and sunlight, thereby removing water odors and COD that cannot be removed by microorganisms using ultraviolet rays from sunlight, has been ongoing since 2006. Now, biofans are used throughout Asia and have grown to be recognized as a principle of water cultivation. This invention relates to a technology that solves the last remaining challenge in this water cultivation principle. [Background technology]

[0002] Since 2006, various technological developments have been undertaken regarding the principles of hydroponics. Recently, improvements have been made in terms of performance, such as directly drawing water from the lake bottom, but the last remaining challenge was the issue of the drive mechanism that rotates the bio-fan and the power supply equipment that provides electricity to it. [Disclosure of the Invention] [Problems that the invention aims to solve]

[0003] The goal was to eliminate the drive mechanism that rotates the water-spinning blades. The only way to do this was to attach the water-spinning blades and wind-receiving blades to an arm that extends inward from a rotating shaft perpendicular to the water surface, and rotate the blades directly using wind power. However, the question was how much this would improve the functionality of conventional bio-fans. [Means for solving the problem]

[0004] The power P obtained by this wind-powered mechanism that rotates the arm is expressed by the following equation. TIFF2026121250000002.tif1554F; Wind force acting on the arm [N] R; Arm length [m] f; Arm rotation speed [rev / min]

[0005] According to this, even if the wind force F is weak, the power P that rotates the water-splashing plate can be increased indefinitely by increasing the length of R. However, the rotation speed f of the water-splashing plate of the BioFan is only a few revolutions per minute, which presented many design problems. The following equations address these issues and are the basic equations necessary for the design of this mechanism.

[0006] I. Moment of wind force F around the axis of rotation F × R = C [0.14ρU] 2 R 2 W) [N·m] C; resistance coefficient 1.42 ρ; Density of air (at 25℃, ρ = 1.075) [kg / m³] 3 ] U; Wind speed [m / s] R; Arm length [m] W; width of the feather [m] F; Wind force acting on the blade [N] Note: This F×R formula was obtained by integrating from 2R / 3 to R, assuming the feather length L is L=R / 3. II. Agricultural water volume (volume of water drawn up per minute from the bottom of the water at a depth of Dm) M = [21.3(F × R)W0] 1 / 2 [m 3 / min] III. Rotation speed of the three water-splashing plates, each with width W0 and length R0, attached to the arm. TIFF2026121250000003.tif1763IV Activation water depth TIFF2026121250000004.tif1657Δθ; temperature difference between the water surface and the seabed [Effects of the Invention]

[0007] According to NEDO's nationwide wind map, areas with an average annual wind speed of 4.1 m / s to 6.0 m / s are widespread across Japan. Therefore, we first calculated the capacity of the new wind-powered bio-fan for U=4.1m / s and U=6m / s, and then added the obtained capacities together and divided by 2 to represent the average capacity of the new bio-fan in Japan.

[0008] <Structure of a New Type of Wind-Powered Biofan> <R = 6m, W = 1.2, W0 = 0.5m, R0 = 1.5m> 1. When U = 4.1m / s F × R = 1.42〔0.14 × 1.075 × 4.1 2 × 6 2 × 1.2〕 = 155.2〔N·m〕 M = 〔21.3 × (155.2) × 0.5〕 1 / 2 = 40.7〔m 3 / min〕 TIFF2026121250000005.tif32922. When U = 6m / s F × R = 1.42〔0.14 × 1.075 × 6 2 × 6 2 × 1.2〕 = 332.4〔N·m〕 M = 〔21.3 × (332.4) × 0.5〕 1 / 2 = 59.5〔m 3 / min〕 TIFF2026121250000006.tif32893. Average value of the capabilities at U = 4.1m / s and U = 6m / s TIFF2026121250000007.tif5185TIFF2026121250000008.tif1769A conventional biofan activates 1 ha at M = 30〔m 3 / min〕. According to this, the activation area at M = 50.1〔m 3 / min〕 can be estimated as TIFF2026121250000009.tif17106. However, u is the flow velocity〔1m / min〕 at the limit point for activating the bottom of the water h is the thickness of the water layer at the limit point〔0.084m〕 <Rotation speed at typhoon U = 40m / s> F × R = 1.42〔0.14 × 1.075 × 40 2 × 6 2 × 1.2〕 = 1040〔N·m〕 M = 〔21.3 × (1040) × 0.5〕 1 / 2 = 105.2〔m 3 / min〕 TIFF2026121250000010.tif1580 Even during a typhoon with a wind speed of U=40m / s, there is no need to worry about damage if the rotation is at this level.

[0009] From around September, the colder surface water sinks and replaces the oxygen-depleted water at the bottom. However, due to global warming, this process has disappeared in Lake Biwa, causing oxygen depletion and altering the ecosystem at the bottom, which is a problem. Therefore, I calculated the feasibility of a super-large, wind-powered new bio-fan that would draw up oxygen-depleted water from the bottom and supply oxygen to the 100-meter-deep seabed.

[0010] <Configuration of the new ultra-large wind-powered bio-fan> <R=90m W=3m W0=8m R0=15m> When wind speed U = 6 m / s F × R = 1.42 [0.14 × 1.075 × 6] 2 ×90 2 ×3] = 186954 [N·m] M = [21.3 × (186954) × 8] 1 / 2 =5644 [m 3 / min] The problem in TIFF2026121250000011.tif2699 is this D, and this equation teaches that if there is no temperature difference between the bottom water and the surface water, or if the temperature of the bottom water is higher than that of the surface water, the water will continue to rise even from several hundred meters until the temperature difference disappears. The value M0 below was calculated assuming that water continues to rise from a depth of 100m from around September, when the surface water temperature begins to fall below the water temperature of Lake Biwa at a depth of 100m, until around March, when the surface water temperature begins to rise. M0 = 5644 [m 3 [ / minute] × 60 [minutes / hour] × 24 [hours / day] × 30.5 [days / month] × 7 months [period from September to March of the following year] Therefore, the volume of water M0 retrieved from a depth of 100m during the period from September to March of the following year is 1.74 × 10⁻⁶ 9 [m 3 The area of ​​anaerobic water at a depth of 100m was calculated as S[m²]. 2 If we were to replace it with oxygenated water at a depth of 50m, S [m 2 ] × 50 [m] = 1.74 × 10 9 [m 3 ] Therefore, S = 34.8 [km 2 This calculation shows that it is possible to replace the oxygen-deprived water contained in an area of ​​5.9 km x 5.9 km with water at a depth of 50 m. [Examples]

[0011] This new wind-powered biofan maximizes the characteristics of biofans, but due to its reliance on wind, there are concerns about its reliability, and various other issues, including a lack of companies eager to develop it, have led to a delay in its development. However, I am confident that the world, and the planet, will not leave it alone. Potential for industrial use

[0012] Something terrible is happening right now. The ocean temperature has risen by 2°C. Seawater acidification is having a serious impact on fisheries. In Indonesia in particular, it is said that acidification caused by CO2 released from underwater volcanoes is causing a drastic decline in fish catches, which is becoming a major problem.

[0013] This isn't limited to Indonesia. This ocean acidification is caused by the vaporization of CO2 contained in deep-sea water that has become hot due to anomalies in the ocean floor crust. The Japan Meteorological Agency and the Ministry of the Environment should understand that no matter how much humanity conserves coal, oil, and natural gas, it cannot prevent global warming or ocean acidification. Nevertheless, the United Nations, which cannot even resolve the chaos of wars related to oil and natural gas, is further exacerbating the chaos by forcing CO2 reductions. Japan alone, following the dictates of this dysfunctional UN, has publicly declared that it will invest 2 trillion yen annually for 10 years under the pretext of CO2 reduction, and this kind of behavior is rampant and has become commonplace around the world.

[0014] In recent years, about 300 years after the Industrial Revolution, the depletion of oil and natural gas and food shortages have become hot topics, and conflicts related to these issues continue unabated. However, it is also said that if coal becomes available, humanity could live without energy shortages for nine times the period of 300 years. What Japan must do now is not what humanity will do 2700 years from now when coal is depleted. It must eliminate 20 trillion yen in waste, and develop disaster-resilient land and cities in preparation for the unavoidable disasters triggered by rising ocean temperatures. It must also revitalize all industries that have been forced to shrink due to the reduction of electricity and thermal power.

[0015] What Japan must do now is develop and provide to the world a super-large, wind-powered, new type of bio-fan that can mitigate ocean acidification, restore the oceans to abundant fishing grounds, and address the food problems caused by ocean acidification. It is abundantly clear that this invention will be utilized not only in Japan but in all industries around the world. [Brief explanation of the drawing]

[0016] [Figure 1] This is an assembly diagram of a mechanism in which a float and balancer are used to adjust the axis of rotation so that it is perpendicular to the water surface, and three arms are attached to it, extending radially toward the water surface from that axis. Each arm is fitted with three wind-catching blades and three water-spinning plates with a width of W0 and a length of R0, and these water-spinning plates are rotated directly by wind power, so that water rising from the bottom spreads toward the water surface with a width of W0. [Explanation of symbols]

[0017] 1. Arms extending radially from a rotation axis. 2. Feathers that catch the wind 3. A water-splashing plate with width W0 and length R0 attached to the arm. 4 floats 5 Balancer W0 Width of the paddle that pulls water up from the bottom R0 is the length of the paddle used to lift water from the seabed. R Arm Length W: The width of the blades that receive the wind. L is the length of the feather (L = R / 3) Volume of water rising from the M0 seabed D. Depth between the water surface and the seabed U wind speed

Claims

【Request Item 1】 The device is floated so that its axis of rotation is perpendicular to the water surface, and arms radiating outwards from that axis of rotation toward the water surface have a width of W. ０ The length is R ０ A water-splashing plate is attached. A blade that catches the wind is installed on the arm, and the wind power rotates the water-splashing plate, creating a new wind-powered bio-fan that spreads water lifted from the bottom of the water toward the surface with just a little wind power.

Images