Question 57Gas Turbine - Assistant Engineer70% to pass
For the GE LM2500 gas turbine engine shown in the illustration, the HP turbine 2nd stage blades are cooled by convection, with the cooling air being discharged where? Illustration GT-0011
AI Explanation
The correct answer is D) Blade tips.
The HP (high-pressure) turbine 2nd stage blades in the GE LM2500 gas turbine engine are cooled by convection, with the cooling air being discharged through the blade tips. This design allows the cooling air to flow over the blade surfaces, effectively dissipating heat and improving the engine's overall efficiency.
The other answer options are incorrect because: A) Nose holes on the leading edge are not used for cooling the HP turbine 2nd stage blades, B) Gill holes on the side are not the discharge point for the cooling air, and C) Trailing edge slots are not the location where the cooling air is expelled.
Related Questions
#55 For the GE LM2500 gas turbine engine shown in the illustration, the HP turbine 2nd stage nozzle vanes are cooled by which of the following? Illustration GT-0020 #56 For the GE LM2500 gas turbine engine shown in the illustration, the HP turbine 1st stage nozzle vanes are cooled by which of the following? Illustration GT-0020 #58 Turbine disks are commonly attached to the shaft by which of the following methods? #59 To keep the exit pressures relatively constant across a HP turbine blade, which type of construction is generally utilized? #60 HP turbine blades are generally cooled by which of the following methods?