Air enters the turbine of a gas turbine at 1200 kPa and 1200 K, and expands to two stages. Between the stages, the air is reheated at a constant pressure of 350 kPa to 1200 K. The expansion through each turbine stage is isentropic. Determine, in kJ/kg, of air flowing;
a) The work developed by each stage.
b) Heat transfer for the reheat process.
c) The increase in net work as compared to a single stage of expansion with no reheats.