Generator Air Deflector Cooling for Passive Wind Heat Removal
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Solution Overview
Problem
Conventional wind power installations face challenges in achieving optimal operating temperatures for generators due to insufficient passive cooling by wind, leading to increased costs from active cooling methods and maintenance requirements.
Innovation Solution
An air cooling device with an air deflector arranged radially on the cooling unit of a wind power installation, which deflects wind inwardly to accelerate airflow and enhance cooling, allowing for more efficient passive cooling and reducing the need for active cooling systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If passive cooling by wind is used, then cost is reduced, but cooling performance is insufficient
Solution Approach 1:
The patent introduces an air deflector as an intermediary component that redirects wind flow toward the generator's cooling surfaces. This simple passive structure enhances the natural wind's cooling effect without requiring active cooling systems, thereby maintaining cost reduction while improving cooling performance.
2Temperature
If active cooling units are used, then cooling performance is improved, but cost and maintenance requirements increase
Solution Approach 1:
The patent employs passive cooling that utilizes natural wind flow modified by simple deflectors, eliminating the need for complex active cooling systems with fans, motors, and control mechanisms. The system serves itself by harnessing environmental wind resources, thereby achieving good cooling performance without increased device complexity, cost, or maintenance requirements.
3Temperature
If wind flow speed is increased, then cooling performance is improved, but energy consumption increases
Solution Approach 1:
The patent replaces mechanical active cooling systems (which consume electrical energy) with passive aerodynamic structures that redirect natural wind flow. The air deflectors use purely mechanical passive geometry to accelerate and direct wind toward cooling surfaces, achieving improved cooling performance without any additional energy consumption.
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 air cooling device enables generators to operate at optimal temperatures with reduced temperature gradients, minimizing energy consumption and operational costs while maintaining efficient cooling performance.
Implementation Method 1
an air deflector which is arranged on the cooling unit and extends outwardly in a radial direction starting from the cooling unit outer surface and in an operating state of the wind power installation is configured to deflect the wind for the air cooling in the radial direction inwardly in the direction of the cooling unit
Implementation Method 2
the wind flowing onto the cooling unit outer surface for the passive cooling of the generator
Data Source
AI summary
Air cooling device for the air cooling of a generator of a wind power installation by means of wind, comprising a cooling unit of the generator with a cooling unit outer surface, the wind flowing onto said cooling unit outer surface for the air cooling of the generator during the operation of the wind power installation, wherein an air deflector is arranged on the cooling unit outer surface of the cooling unit and has a first air deflection unit which extends outwardly at an acute angle starting from the cooling unit outer surface and forms with the cooling unit a converging first air deflection channel, which is configured in an operating state of the wind power installation to deflect the wind for the air cooling in the direction of the cooling unit.