Which factor limits the maximum operating temperature of a gas turbine?
Explanation:
The maximum operating temperature of a gas turbine is mainly limited by the temperature that the turbine blade materials can safely withstand.
In a gas turbine, the hot gases coming from the combustion chamber directly strike the turbine blades. If the temperature becomes too high, the blades may lose strength, deform, oxidize, or suffer from creep. Because of this, the turbine cannot be operated beyond the safe temperature limit of its blade material.
So, the main limiting factor is the metallurgical limit of the turbine blade material, along with the effectiveness of blade cooling.
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