Adaptive-Curvature Inertial Particle Separator for Gas Turbines
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Solution Overview
Problem
Gas turbine engines face wear and maintenance issues due to particulate matter like dust, sand, and water entering the compressor, leading to decreased power output and increased maintenance costs, as existing particle separation methods are inefficient in handling varying particulate contamination levels.
Innovation Solution
A particle separator with an adaptive-curvature inner wall and a control system that adjusts its radius in response to detected particles, using a rotor and pivotably coupled leaves to separate clean and dirty flows effectively, minimizing wear and maintaining efficiency across different particulate conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed geometry particle separator is used, then the device complexity is low, but the adaptability to varying particulate contamination levels is poor
Solution Approach 1:
The particle separator employs an adaptive-curvature inner wall that can dynamically change its geometry between a first arrangement (non-austere conditions) and a second arrangement (austere conditions with particles). This dynamic adjustment allows the separator to adapt to varying particulate contamination levels, improving adaptability while managing device complexity through controlled movement mechanisms.
Solution Approach 2:
The invention changes the curvature parameter of the inner wall to optimize particle separation performance under different contamination conditions. By adjusting the curvature between two distinct arrangements, the system adapts to varying particulate levels, resolving the contradiction between adaptability and device complexity.
2Reliability
If the inner wall is moved toward the outer wall to increase separation effectiveness, then particle separation performance improves, but the pressure loss increases
Solution Approach 1:
The adaptive-curvature inner wall dynamically adjusts its position relative to the outer wall based on detected particulate contamination. During austere conditions, the inner wall moves toward the outer wall to enhance separation effectiveness. During non-austere conditions, it returns to its original position to minimize pressure loss, thus resolving the contradiction between separation performance and energy loss.
Solution Approach 2:
The invention changes the geometric parameters of the flow passage by moving the inner wall, optimizing the balance between particle separation effectiveness and pressure loss based on environmental conditions.
3Adaptability or versatility
If a control system is added to adjust the inner wall position, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The particle separator incorporates a control system that detects particles in the air stream and provides feedback to adjust the inner wall position accordingly. This feedback mechanism enables the system to automatically adapt to varying particulate contamination levels, improving adaptability while managing complexity through automated control.
Solution Approach 2:
The control system enables the particle separator to self-adjust its geometry based on detected particulate conditions, allowing the system to serve itself by automatically optimizing performance without external intervention, thus improving adaptability while containing complexity within the control mechanism.
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 adaptive-curvature particle separator effectively separates particles from air, reducing engine wear and maintenance costs by adjusting its geometry based on particulate presence, ensuring clean air reaches the compressor while directing particles into a scavenge channel, thus maintaining engine performance and extending lifespan.
Implementation Method 1
Inertial particle separation uses the inertia of the particles to separate the particles from the air. As the air stream moves through the air-inlet duct, the air moves along a serpentine flow path and enters an engine channel of the air-inlet duct while the particles move along a generally linear travel path and enter a scavenge channel of the particle separator.
Data Source
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AI summary
A particle separator (12) adapted for use with a gas turbine engine (10) includes an inner wall (22), an outer wall (24), and a splitter (26). The splitter cooperates with the inner wall and the outer wall to separate particles suspended in an inlet flow moving through the particle separator to provide a clean flow of air to the gas turbine engine.