Question 14Gas Turbine - 1st Asst/Chief

The correct answer is D) Intercooled-recuperated type. This is the correct answer because the illustration GT-0031 depicts a gas turbine cycle configuration that includes both an intercooler and a recuperator. The intercooler lowers the temperature of the compressed air before it enters the combustion chamber, while the recuperator uses the exhaust heat to preheat the air entering the combustion chamber. This combination of an intercooler and a recuperator is characteristic of an intercooled-recuperated type gas turbine cycle. The other options are incorrect because a simple gas turbine cycle lacks both an intercooler and a recuperator (option B), a recuperative cycle has only a recuperator but no intercooler (option A), and an intercooled cycle has an intercooler but no recuperator (option C).