Question 11Gas Turbine - 1st Asst/Chief

70% to pass

Which of the following statements about the intercooled-recuperated gas turbine cycle is true? Illustration GT-0031

Diagram for USCG Gas Turbine Chief: Which of the following statements about the intercooled-recuperated gas turbine...

AIntercooler serves to increase the required high-pressure compressor power, while the recuperator utilizes waste heat form the exhaust to increase turbine inlet temperature.

BIntercooler serves to increase the required high-pressure compressor power, while the recuperator utilizes waste heat form the exhaust to decrease turbine inlet temperature.

CIntercooler serves to reduce the required high-pressure compressor power, while the recuperator utilizes waste heat form the exhaust to decrease turbine inlet temperature.

DIntercooler serves to reduce the required high-pressure compressor power, while the recuperator utilizes waste heat form the exhaust to decrease required fuel to achieve turbine inlet temperature.

AI Explanation

The correct answer is D. The intercooled-recuperated gas turbine cycle utilizes an intercooler to reduce the required high-pressure compressor power by cooling the air between the low-pressure and high-pressure compressors. This reduced compressor power requirement leads to a decrease in the amount of fuel required to achieve the desired turbine inlet temperature. The recuperator then utilizes the waste heat from the turbine exhaust to preheat the compressed air entering the combustor, further reducing the required fuel input. The other answer choices incorrectly describe the roles of the intercooler and recuperator in this cycle.