The thermodynamic efficiency of rotary compressor is based on_______________?
A. isothermal compression
B. adiabatic compression
C. isentropic compression
D. polytropic compression
E. none of the above
A. isothermal compression
B. adiabatic compression
C. isentropic compression
D. polytropic compression
E. none of the above
A. inlet losses
B. impeller channel losses
C. diffuser losses
D. all of the above
E. none of the above
A. isothermal H.P/indicated H.R
B. isothermal H.P./shaft H.R
C. total output/air input
D. compression work/motor input
E. none Of the above
A. heated
B. compressed air before entering the combustion chamber is heated
C. bled gas from turbine is heated and readmitted for complete expansion
D. exhaust gases drive the compressor
E. part of exhaust gases are heated and mixed up with atmospheric air to utilise exhaust heat
A. 34%
B. 50%
C. 60%
D. 72%
E. 85%.
A. before intercooler
B. after intercooler
C. after receiver
D. between after-cooler and air receiver
E. before suction
A. is self-operating at zero flight speed
B. is not self-operating at zero^flight speed
C. requires no air for its operation
D. produces a jet consisting of plasma
E. none of the above