Wind Deflecting Structure Accelerates Flow for Turbine Power

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Solution Overview

Problem

Existing wind energy collection systems do not effectively harness increased wind speeds at higher altitudes, leading to suboptimal energy conversion efficiency.

Innovation Solution

A wind energy generating system that includes a wind deflecting structure creating accelerated flow paths, positioning vertical or horizontal axis turbines within these paths to capture higher wind velocities, coupled with energy converters to generate electricity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If turbines are positioned at higher altitudes to capture increased wind speeds, then wind power output increases, but system complexity and installation difficulty increase

Engineering Contradiction:
Improvewind power outputVSAvoidsystem complexity
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

A wind deflecting structure is introduced as an intermediary element between the natural wind flow and the turbine. This structure accelerates and directs wind toward the turbine, enabling the turbine to operate at lower altitudes while capturing wind speeds that would normally only be available at higher elevations, thus avoiding the complexity of high-altitude installation

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The wind deflecting structure modifies the wind flow parameters (velocity and direction) before it reaches the turbine. By accelerating the wind through aerodynamic design of the deflecting structure, the system achieves higher wind speeds at turbine location without requiring the turbine to be positioned at higher altitudes

Inventive Principle:
Principle #35Parameter changes

2Productivity

If wind deflecting structures are used to accelerate wind flow, then energy conversion efficiency increases, but manufacturing complexity increases

Engineering Contradiction:
Improveenergy conversion efficiencyVSAvoidmanufacturing complexity
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The wind deflecting structure is divided into multiple modular sections that can be manufactured separately and assembled on-site. This segmentation reduces manufacturing complexity for each individual component while achieving the overall wind acceleration effect through the combined structure

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The wind deflecting structure employs curved and aerodynamic surfaces to optimize wind flow acceleration. These curved geometries are designed to guide wind smoothly and create the necessary velocity increase, with the curvature profiles being standardized for manufacturing efficiency

Inventive Principle:
Principle #14Spheroidality (Curvature)

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

The system achieves an eight-fold increase in power output due to the increased wind velocity, leveraging the cubical proportionality of wind power conversion with speed, thereby enhancing energy harvesting efficiency.

Implementation Method 1

a wind deflecting structure that divides wind impinging on the structure into two separate accelerated flow paths

Methodology Applied
Scientific EffectAccelerated flow path: Venturi Effect

Implementation Method 2

one or more vertical or horizontal axis turbines are positioned in proximity to the wind deflecting structure such that the turbine is placed within one of the accelerated flow paths

Methodology Applied
Scientific EffectWind power conversion: Wind Power

Implementation Method 3

An energy converter is coupled to the turbine that converts rotary motion of the turbine into electricity

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Data Source

PatentUS7679209B2Wind powered electricity generating system
Publication Date: 2010.03.16 CLEVELAND STATE UNIVERSITY
  • US7679209B2 patent drawing
  • US7679209B2 patent drawing
  • US7679209B2 patent drawing

AI summary

An electrical energy generating system converts wind power to electrical power with a wind deflecting structure that divides wind impinging on the structure into two separate accelerated flow paths. One or more turbines are positioned in proximity to the wind deflecting structure such that a portion of the vanes of the turbine is placed within one of the accelerated flow paths. An energy converter is coupled to the turbine that converts rotary motion of the turbine into electricity.