Consider a Brayton cycle with reheat using air as the working fluid Air enters the compressor at 100kP and 300K. Air enters the turbine at 400kPa and 1200K, and expands to 100kPa in two stages. Between the stages, air is reheated at a constant pressure of 200 kPa to 1200 K. Each turbine stage has an isentropic efficiency of 88% and the compressor has an isentropic efficiency of 90%. Assume a source temperature of 1200 K and a sink temperature of 300 K. Show the cycle on a T-s diagram. Assume variable specific heats for air and determine
a) the net work output, in kJ/kg.