Question 13Gas Turbine - 1st Asst/Chief70% to pass
In a regenerative or recuperative gas turbine cycle configuration, the heat of the turbine exhaust gas is used to do what?
AI Explanation
The correct answer is D) Heat the compressor discharge air before it enters the combustor.
In a regenerative or recuperative gas turbine cycle, the hot exhaust gas from the turbine is used to preheat the compressed air before it enters the combustor. This preheating of the compressor discharge air improves the overall efficiency of the gas turbine cycle by reducing the amount of fuel required to heat the air to the desired combustor inlet temperature.
The other options are incorrect because: A) the LP compressor discharge air is not heated, B) the intake air to the compressor is not heated, and C) the combustor discharge gas is not heated before entering the turbine in a regenerative/recuperative cycle.
Related Questions
#11 Which of the following statements about the intercooled-recuperated gas turbine cycle is true? Illustration GT-0031 #12 For the same amount of available power, how does a low speed two-stroke diesel engine compare to a recuperated gas turbine configuration? #14 What type of gas turbine cycle configuration is shown in the illustration? Illustration GT-0031 #15 Compressor tip clang can be usually attributed to which of the following operating conditions? #16 Once a compressor is broken in, which of the following factors will most likely cause blade tips to rub?