In: Physics
Consider an ideal gas turbine cycle with two stages of compression and two stages of expansion. The pressure ratio across each compressor stage and each turbine stage is 5 to 1. The pressure at the entrance to the first compresor is 100 kPa, the temperature entering each compressor is 25°C (298 K), and the temperature entering each turbine is 1100°C (1373 K). An ideal regenerator is also incorporated into the cycle. For the air involved, it may be assumed that Cp = 1.005 kJ/kg.K and the specific heat ratio, k = 1.4.
(a) The compressor work is __ kJ/kg. (b) The turbine work is __ kJ/kg. (c) The cycle efficiency is __ %.