consider a brayton cycle with reheat and regeneration. air enters the compressor at 100 kpa and 300 k and is compressed to 1000 kpa. the temperature at the inlet of first turbine stage is 1400 k. the expansion takes place isentropically in two stages, with reheat to 1400 k between the stages at a constant pressure of 300 kpa. a regenerator with effectiveness of 95% is also incorporated in the cycle. determine the thermal efficiency of the cycle.