Wind Machine Aerodynamic Elements Concentrate Aeolian Flow
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Solution Overview
Problem
Current wind machines are inefficient in harnessing low wind speeds and are large in size, leading to high environmental impact, maintenance challenges, and limited geographical suitability, as they primarily operate within specific wind speed ranges and locations, with short duration of effective wind intensity.
Innovation Solution
A wind machine with reduced dimensions and aerodynamic elements, including converging and diverging wing profiles and rotors, that utilizes different fluid dynamic motions to concentrate and accelerate Aeolian flows, incorporating air intakes and auxiliary intakes to increase velocity and collect kinetic energy, while minimizing friction losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If rotor diameter is increased to capture more wind energy, then power collection capability is improved, but device dimensions and construction costs increase
Solution Approach 1:
The patent changes the operating parameter from direct low-speed wind capture to accelerated high-speed wind capture through aerodynamic concentration. By using converging-diverging ducts and aerodynamic elements, the system transforms the velocity parameter of wind flow, enabling smaller rotors to achieve the same power output as much larger conventional rotors by operating in accelerated flow conditions (5-15 m/s input converted to higher velocity at rotor plane).
Solution Approach 2:
The patent introduces aerodynamic intermediaries (converging-diverging ducts, wing profiles, and flow concentration elements) between the ambient wind and the rotor. These intermediaries act as flow conditioners that concentrate and accelerate the wind before it reaches the rotor, eliminating the need for large rotor dimensions while maintaining power collection capability.
2Speed
If rotor height is increased to access stronger winds, then wind speed is improved, but maintenance difficulty and environmental impact worsen
Solution Approach 1:
Instead of changing the spatial parameter (height) to access faster winds, the patent changes the velocity parameter through aerodynamic acceleration. The system takes ambient winds at any height and accelerates them through the duct system, achieving high rotor-plane velocities without requiring tall tower structures, thereby keeping all components accessible at ground level.
3Power
If wind machine is placed in mountain zones for higher wind speeds, then power generation is improved, but adaptability to different zones decreases
Solution Approach 1:
The patent transforms the system from being location-dependent (requiring mountain zones) to location-independent by using aerodynamic parameter transformation. The converging-diverging duct system can accelerate ambient winds from any geographical location to the required velocity, enabling the same device to generate power effectively in urban, rural, coastal, or inland areas without requiring specific geographical features.
4Productivity
If effective wind duration is extended, then energy production is improved, but operational reliability requirements increase
Solution Approach 1:
The patent enables operation during low-wind conditions by transforming the velocity parameter through aerodynamic acceleration. Since the system can take weak ambient winds and accelerate them to effective velocities, it can operate during periods when conventional systems would be ineffective, thereby extending productive operation duration without requiring the ambient wind to be consistently strong or reliable.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the harnessing of low wind speeds over longer durations, reducing environmental impact and maintenance risks, and allowing operation in various zones, including urban areas, by increasing wind velocity and energy collection efficiency.
Implementation Method 1
a wind machine with aerodynamic elements to concentrate and accelerate an Aeolian flow entering from outside
Implementation Method 2
utilizes different fluid dynamic motions to concentrate and accelerate Aeolian flows
Implementation Method 3
rotors or other wind devices suitable for collecting natural or, at the beginning, forced wind power
Data Source
AI summary
A wind machine with aerodynamic elements to concentrate and accelerate an wind flow entering from outside, said machine having a housing, with an air intake, a first section converging up to an element having a substantially spherical or cylindrical section, a second and a third section, downwind said first converging section, each of said first section, said second section and said third section causing said wind flow to contact said element which has a substantially spherical or cylindrical section substantially up to its median line, a first and a second auxiliary air intake, coincident with said median line of said element having a substantially spherical or cylindrical section, said element having a substantially linear portion, being downwind of said first and second air intakes, and having a fourth and fifth section after said third section.