专利汇可以提供Aerovortex mill专利检索,专利查询,专利分析的服务。并且The VIASAD/JETIASAD mechanism generates vortices/high speed jet streams in the vicinity behind the rotating wind mill rotor blades, in order to induce acceleration of the air hitting the wind mill rotor blades. The new idea here is the concept of using vortices or high-speed jet streams in order to create suction behind the wind mill rotor blades and eventually increase the speed of the incoming air flow. The consequences of this concept related to the way a wind mill functions, are the following: (1) It lowers the wind mill's cut-in wind speed, which means that the wind mill starts producing power at lower wind speeds. (2) Increase the wind mill power output for a given wind speed, and thus increase its efficiency. The VIASAD/JETIASAD mechanism renders the use of wind mills for generating electricity, economically viable and technically feasible in areas with low mean annual wind speeds.,下面是Aerovortex mill专利的具体信息内容。
What I claim as my invention is:
Aerovortex Mill: A Wind Mill using a device which generates high-speed air jet streams or vortices behind the rotor blades, inducing the increase of the free stream velocity of air (Wind) hitting the rotor blades. The vortex generator device is given the name VIASAD which stands for Vortex Induced Air Speed Amplification Device. The jet-stream generator device is given the name JETIASAD which stands for JET stream Induced Air Speed Amplification Device. The Aerovortex Mill using the VIASAD/JETIASAD device, can generate higher power output in regions with low mean annual wind speeds.
Not Applicable
Not Applicable
REFERENCE TO SEQUENCE LISTING, A TABLE, OR A COMPUTER PROGRAM LISTING COMPACT DISC APPENDIX
Not Applicable
Wind constitutes one of the major sources of renewable or “green” energy production. Windmills are widely used all over the world in order to harness this power from the wind.
Currently there are two types of windmills: vertical axis and horizontal axis machines. They both use some kind of propeller which is primarily used for extracting or converting the Kinetic Energy of the wind into mainly two types of energies: (1) Electrical energy (Power generators) and (2) Potential energy of the water (Water pumps). These propellers or rotors are either drag-based or lift-base devices. The drag-based rotors have slower rotational speeds than the lift-based devices. Generally the lift-based devices are a lot more efficient than the drag-based devices, and consequently the wind power generators are mostly lift-based devices.
A lot of research and development has been done by a number of companies around the world in order to improve the efficiency and performance of lift-based windmills. This lead to a number of considerable advances in this field, primarily focused on the following three areas:
How many advances have been achieved in Windmill technology, even the most advanced and efficient Windmills can only operate in areas with mean annual wind speeds exceeding 4.5 m/s. Only then, they can generate enough useful energy or electricity to justify their extremely high cost. As a result, areas with low mean annual wind speeds (below 4.5 m/s), are left with no reliable and efficient enough technology to harness the energy of the wind.
The recommended invention/mechanism, does not radically changes the most widely used way of harnessing the wind energy, which is the use of horizontal axis lift-based wind turbines. This technology has been in development the last three decades and it has reached very high standards of efficiency. The recommended invention builds on this existing and proven technology and renders it more efficient and hence a lot more attractive. Exactly for this reason, from a practical and financial point of view, the implementation of the invention becomes very feasible and economically viable.
The use of a vortex generator device to generate vortices in the vicinity behind the wind mill rotor blades, can render the conventional wind mill a far more efficient device at low wind speeds. The same applies for a mechanism blowing high-speed air jet streams behind the wind mill rotor blades. By using these devices, the wind mill will be able to operate in an environment with winds in the lower speed spectrum (1 m/s<v<5 m/s) and at the same time produce electricity (power) efficiently and cost effectively.
The vortices as well as the jet streams generated by the proposed mechanism or device, in the vicinity behind the wind mill rotor blades, help accelerate the free stream air by lowering the static pressure in that region and hence inducing a suction effect. As a result, the wind mill's output performance is improved.
The vortex generator mechanism is given the name VIASAD which stands for “Vortex Induced Air Speed Amplification Device”. The jet-stream generator device is given the name JETIASAD which stands for “JET stream Induced Air Speed Amplification Device”. The Wind Mill carrying the VIASAD/JETIASAD device, is called: “Aerovortex Mill”.
In simple terms, the concept mechanism will especially benefit areas with low mean annual wind speeds. The production of electricity at low wind speeds by an Aerovortex Mill, will be comparable to that produced at a lot higher wind speeds with current wind mill technology not using the VIASAD/JETIASAD device.
The paragraphs 0012 to 0019 that follow, provide necessary background information related to the invention in order to be fully understood. This introductory information naturally leads to a detailed description of the invention.
The Power Available in the Wind:
The following formula gives the total power contained in the Wind of a certain speed and through a given cross-sectional area.
PW=(½)*(Density)*A*V3
Power Produced by a Wind Mill:
The following formula calculates the power output from a wind mill given the available power in the wind.
PM=CP*PW
CP depends on a number of factors like the type of the wind mill (drag-based or lift-based) and the rotor used. The drag-based devices achieve their maximum performance efficiency at low wind speeds and hence low tip-speed ratio. On the other hand, the lift-based devices achieve their maximum performance efficiency at high tip-speed ratios. However, it is very important to note here that the maximum performance output achieved by the lift-based devices is a lot higher than the corresponding performance output given out by the drag-based devices.
According to the Betz Law (Known as Betz limit) there is a maximum value of CP which is equal to 59.3%. In practice, though, real wind rotors have maximum CP values in the range of 10%-40%.
Based on the formula of paragraph 0012, the Power which can be harnessed from the wind by propellers is heavily dependent on the wind speed (speed cubed).
The Wind as an Energy Resource
Large areas of the world appear to have mean annual windspeeds below 3 m/s, and are unsuitable for wind power systems, and almost equally large areas have windspeeds in the intermediate range of 3-4.5 m/s where wind power may or may not be an option. In these areas, drag-based wind machines are the most efficient but rarely are used for power generation because of their low rotational speeds.
Those areas with mean annual windspeeds exceeding 4.5 m/s are the most economically competitive for power generation. In these areas lift-based devices are being used, because they are usually more efficient than drag-based devices, even though at extremely high wind speeds their efficiency considerably drops.
In summary, the most efficient current technology based on lift-generating rotor wind mills, can operate in areas with mean annual wind speeds exceeding 4.5 m/s and generate enough useful energy or electricity to justify their extremely high cost. On the other hand, areas with low mean annual wind speeds (below 4.5 m/s), are left with no reliable and efficient enough technology to harness the energy of the wind.
The Inspiration
The source of inspiration for the recommended concept device (VIASAD/JETIASAD), consists of specific lessons from nature which can be summarized as follows: The Hydrodynamic mechanisms of Aquatic Locomotion used by fishes to propel their way through fluids and the Flight propulsion mechanisms used by birds and insects moving through Air.
1. Aquatic Locomotion
The Momentum-Impulse Couple of Vortex REAR DRIVEN Bodies:
The rear body parts (feet, caudal fin) can both (A) accelerate the vortex flow generated by the body moving through the water and/or (B) generate vortices.
1.1 Human Swimmer
1.2 Shark
2. Flight Propulsion
2.1 Insect Flapping Flight
The Invention
A device which increases the speed of Air Flow (Wind) in the vicinity of the wind mill rotor blades. Based on the formulas given in paragraphs 0012 and 0013 above, the power output of a wind mill is proportional to the 3rd Power of the speed of the air stream hitting the wind mill rotor blades. Consequently, by increasing the speed of the air seen by the rotor blades, the power output will surpass the level corresponding to the free stream air speed.
The proposed device generates a high-speed jet stream or a system of vortices behind the wind mill rotor blades (downstream). These vortices lower the static pressure in the region where they are generated and hence they are inducing a suction effect. Also, due to the high geometrical organization, these vortices carry a high amount of momentum, which helps accelerate the free stream air hitting the wind mill rotor blades (upstream). This is the reason I call this device: VIASAD, which stands for “Vortex Induced Air Speed Amplification Device”. The version of this device which blows air jet streams behind the rotor blades, is called JETIASAD: “JET stream Induced Air Speed Amplification Device”.
The Wind Mill operating with the help of the VIASAD/JETIASAD device, I call it an “Aerovortex Mill”.
The mechanism described above, will render the wind mill a far more efficient device at low wind speeds. It will be able to operate in an environment with winds in the lower speed spectrum (1 m/s<v<5 m/s) and at the same time produce electricity (power) efficiently and cost effectively.
In simple terms, the concept device will especially benefit areas with low mean annual wind speeds. The production of electricity at low wind speeds by an Aerovortex Mill, will be comparable to that produced at a lot higher wind speeds with current wind mill technology not using the VIASAD/JETIASAD device.
Specification:
The VIASAD/JETIASAD device helps increase the speed of air flow hitting the wind mill rotor blades by inducing suction in the vicinity behind the rotor blades, and it is based on the following (A)Functional principles and (B)Design variations:
A. Functional Principles:
The principles described below, provide valuable insight into the functionality of the VIASAD/JETIASAD device. They can be very helpful in building and operating the device. Essentially, the VIASAD/JETIASAD device makes use of the Wind in a number of steps/stages as described below:
B. Design Variations:
The following Design variations describe a number of different configurations for the VIASAD device. All recommended designs, aim at generating vortices and/or air jet streams behind (or downstream) the wind mill rotor blades, which induce acceleration of the wind hitting the rotor blades (In the vicinity of the wind mill blades).
(1) Stationary Swept-Forward Wings. (See
Location/Position:
I. Case1: A single pair of wings is used. The horizontal plane of the wings lies on the same height as the horizontal diameter of the wind mill rotor disc.
Functionality:
(2) Flapping Swept-Forward Wings.
Location/Position:
Functionality:
(3) Fins Like the Shark's Caudal Fin.
(4) Contractions Where Air is Initially Accelerated and Eventually Diffused in a Rolling Vortex or a High-Speed Jet Stream. These Contractions are Basically Open Circuit Converging Wind Tunnels. See
Location/Position:
Functionality:
标题 | 发布/更新时间 | 阅读量 |
---|---|---|
含低风速分散式风电的配电网多目标动态鲁棒重构方法 | 2020-05-08 | 68 |
一种基于改进FPA的储能容量优化配置方法 | 2020-05-08 | 693 |
一种含储氢装置的多能源系统提升能源利用率的方法 | 2020-05-11 | 887 |
一种用于加强弱送端网架强度的无功配置方法及系统 | 2020-05-14 | 178 |
基于风速时间周期特征的风电并网系统风险评估方法 | 2020-05-08 | 58 |
用神经网络和交叉熵采样的风电电力系统可靠性估测方法 | 2020-05-12 | 575 |
一种新能源并网电力系统的静态安全概率评估方法 | 2020-05-15 | 696 |
考虑多能需求响应的电热互联网系统调度优化方法 | 2020-05-12 | 475 |
一种基于复杂适应系统理论的多能源电源容量配置方法 | 2020-05-12 | 596 |
一种基于模拟退火算法的连续下降进近油耗优化方法 | 2020-05-18 | 432 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台,是提供专利分析,专利查询,专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据,免费查、免费专利分析。
专利汇分析报告产品可以对行业情报数据进行梳理分析,涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度,系统通过AI智能系统对图表进行解读,只需1分钟,一键生成行业专利分析报告。