Air Core Reactor Wind Deflector Mitigates Thermal Excursions
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Solution Overview
Problem
Conventional air core reactors experience significant temperature elevations in winding layers under mild wind conditions, leading to adverse thermal effects, as existing designs rely on passive cooling that is insufficient to manage wind-induced heat increases.
Innovation Solution
A wind deflector assembly is integrated into the reactor design to direct wind through cooling ducts between winding layers, utilizing a base plate with a conical structure and vertical baffle walls to divert wind upward, creating a plenum system that enhances natural air circulation and heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If passive cooling design is used in conventional air core reactors, then the reactor structure remains simple and cost-effective, but temperature elevations occur in winding layers under wind conditions
Solution Approach 1:
A wind deflector assembly is introduced as an intermediary component between the external wind environment and the reactor winding layers. The deflector includes a base plate with conical structure and vertical baffle walls that redirect wind flow, and cooling ducts that channel the redirected wind through the winding layers to enhance cooling effectiveness without requiring active cooling systems
Solution Approach 2:
The invention converts the harmful effect of wind-induced temperature elevations into a beneficial cooling effect. By using the wind deflector assembly to redirect and channel wind flow through the winding layers via cooling ducts, the previously harmful wind exposure is transformed into an active cooling mechanism that reduces winding layer temperatures below ambient levels
2Reliability
If wind is allowed to blow freely around the reactor, then the reactor operates with minimal structural interference, but thermal excursions increase in the winding layers
Solution Approach 1:
The wind deflector assembly serves as a mediating structure that controls and directs wind flow. The base plate with conical structure and vertical baffle walls act as intermediaries to capture, redirect, and channel wind through the cooling ducts, ensuring reliable and controlled thermal management of the winding layers
Solution Approach 2:
The invention utilizes pneumatic principles by employing wind (air flow) as the cooling medium. The cooling ducts are designed to channel atmospheric wind flow through the winding layers, using pressure differentials and flow dynamics to achieve effective heat removal from the reactor components
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 wind deflector significantly reduces temperature excursions in winding layers, often bringing temperatures below those observed without wind conditions, thereby mitigating long-term thermal stress and extending the reactor's lifespan.
Implementation Method 1
A wind deflector assembly is integrated into the reactor design to direct wind through cooling ducts between winding layers, utilizing a base plate with a conical structure and vertical baffle walls to divert wind upward, creating a plenum system that enhances natural air circulation and heat transfer
Implementation Method 2
creating a plenum system that enhances natural air circulation and heat transfer
Data Source
AI summary
An air core, dry type, power reactor (10) of the type having multiple concentrically positioned winding layers (12) extending along a central axis and above arms (24) of a first spider unit (16) when the reactor is horizontally positioned with respect to a horizontal ground plane, the winding layers (12) arranged in spaced-apart relation providing air gaps (20) between the winding layers allowing air to flow along the winding layers. A deflector (40) is positioned between the winding layers (12) and the ground plane to receive air from wind blowing toward the reactor (10) and guide the air in an upward direction from the deflector (40) and along the gaps (20).