In a gas turbine cycle using an intercooler, which of the following advantages are obtained?

The correct response emphasizes that using an intercooler in a gas turbine cycle can lead to increased thermal efficiency. In an intercooler configuration, the air is cooled between compression stages, which means that the air entering the combustion chamber is at a lower temperature. This results in several benefits.

First, as the air is cooled, its density increases, allowing more air to be compressed without needing to increase the work input significantly. This denser air leads to a more efficient combustion process, as there is a higher mass of air available to mix with fuel. Consequently, since the combustion process is more effective, thermal efficiency is improved.

Additionally, because the air entering the combustion chamber is cooler, the temperature difference driving the turbine is maximized, which further enhances efficiency. The combination of higher mass flow rates and better combustion leads to a boost in thermal efficiency within the cycle.

Although the other options may seem relevant, such as a reduced specific volume of air or an increase in power output, the primary and direct benefit of incorporating an intercooler in a gas turbine cycle is indeed the increased thermal efficiency.