Thermodynamics on Power Plant related Questions and Answers

Question :   The efficiency of the open cycle gas plant is quite low. Why? 1. Gas gets cooled before reaching the turbine wheels 2. A lot of mechanical energy is used up by the compressor 3. Due to the presence of regenerator and absence of air pre heater 4. Both (a) and (b) Answer :   4 - Both (a) and (b)