Combustor Panel Stud Cooling Effusion Augmentors
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Solution Overview
Problem
Gas turbine engine components, particularly combustor panels, face high thermal loads during combustion, leading to increased operational temperatures and reduced lifespan due to inadequate cooling methods.
Innovation Solution
The implementation of heat transfer augmentors with effusion holes extending through the panel and heat transfer augmentors, which port compressed gas from the gap between the panel and shell into the combustion chamber, providing enhanced cooling by distributing heat more evenly and reducing temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If traditional cooling methods are used for combustor panels, then the structure is simple, but the panel temperature remains high leading to reduced component lifespan
Solution Approach 1:
The patent employs effusion holes (porous structure) in the combustor panel to enable cooling gas to escape and form a protective layer between the hot combustion chamber and the panel, effectively reducing panel temperature while extending component lifespan
Solution Approach 2:
The patent uses compressed gas (pneumatic system) supplied through the combustor panel to create a cooling effect. The gas flows through effusion holes to form a cooling layer that protects the panel from high temperatures, thereby extending component operational life
2Temperature
If heat transfer augmentors are added to enhance cooling, then panel temperature is reduced, but device complexity increases
Solution Approach 1:
The patent integrates heat transfer augmentors with the combustor panel structure, combining the cooling function with the existing panel design. The augmentors are embedded within the panel assembly, merging structural and thermal management functions to reduce overall device complexity while maintaining effective cooling
Solution Approach 2:
The heat transfer augmentors serve multiple functions: they enhance heat transfer from the combustion chamber, provide structural support, and facilitate the flow of cooling gas through effusion holes. This multi-functionality reduces the need for separate cooling components, thereby managing device complexity
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
This solution effectively reduces the temperature of the combustor panel by efficiently transferring heat to the compressed gas flowing through the effusion holes, thereby extending the operational life of the components and improving the efficiency of the gas turbine engine.
Implementation Method 1
efficiently transferring heat to the compressed gas flowing through the effusion holes
Implementation Method 2
heat transfer augmentors with effusion holes extending through the panel and heat transfer augmentors, which port compressed gas from the gap between the panel and shell into the combustion chamber
Data Source
AI summary
A gas turbine engine component having a first surface in communication with a core airflow. The gas turbine engine component further includes a second surface, different than the first surface, for cooling the first surface. The gas turbine engine component further includes a heat transfer augmentor extending from the second surface. The gas turbine engine component further includes a heat transfer augmentor effusion hole extending through the gas turbine engine component from a sidewall of the heat transfer augmentor to the first surface.