It's plumbed in from the compressor sections of the engines, Smith says, and while some of it's recycled, it all runs through high-efficiency particulate air (HEPA) filters.
Such a device is not as fuel-efficient as the main turbofan section of the engine because heat addition occurs at a lower pressure than in the main burner.
In doing so, GE engineers used the latest computerized 3-D aerodynamic modeling to smooth the airflow inside the hottest and hardest-working section of the engine.
To that effect, integration between the hot section of the engine and the cooler bypass flow is considered to quantify achievable output power.
Sensor failures are a major cause of concern in engine-performance monitoring as they can result in false alarms and, in some cases, lead to the condemnation of a non-offending component or section of the engine.
The need to increase the operating temperature of gas turbines to provide improved efficiency has led to the use of thermal barrier coatings on components in the hot section of the engine.
Ash killed planes; it attached itself to the turbine section of the engines.
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The use of thermal barrier coatings (TBCs) on turbine blades and vanes located in the hot sections of gas turbine engines has allowed higher engine operating temperatures leading to temperatures of the order of 1200 °C at the surface of the ceramic coating.
