At what point in a turbine engine is the temperature the highest?
18. At what point in a turbine engine is the temperature the highest? At the inlet to the high-pressure turbine.
Where is the highest heat to metal contact in a turbine engine?
The turbine inlet nozzle vanes are located directly aft of the combustion chambers and immediately forward of the turbine wheel. This is the highest or hottest temperature that comes in contact with metal components in the engine.
What is the most limiting factor in the operation of a gas turbine engine?
High temperature corrosion and oxidation of the gas turbine material is a significant life limiting factor. The combustion gases, particularly from heavy fuels, contain several aggressive corrosion elements such as sodium, potassium, lead and vanadium which cause corrosion of the hot gas path components.
What is overall pressure ratio in gas turbine?
In aeronautical engineering, overall pressure ratio, or overall compression ratio, is the ratio of the stagnation pressure as measured at the front and rear of the compressor of a gas turbine engine. The terms compression ratio and pressure ratio are used interchangeably.
What is interstage turbine temperature?
Interstage Turbine Temperature (ITT) is the temperature of the exhaust gases between the high pressure and the low pressure turbines. The gas temperature is measured by a number of thermocouples mounted in the exhaust stream and is presented on a flight deck gauge in either degrees Fahrenheit or degrees Celcius.
Why do some turbine engines have more than one turbine wheel attached to a single shaft?
Why do some turbine engines have more than one turbine wheel attached to a single shaft? To extract more power from the exhaust gases than a single wheel can absorb. … As altitude increases thrust from a turbin engine generally increases.