high pressure ratio

increasing gas temperature

high specific volume

paucity of 02.

gas turbine requires lot of cooling water

gas turbine is capable of rapid start up and loading

gas turbines have flat efficiency at part loads

gas turbines have high standby losses and require lot of maintenance

reduction of speed of incoming air and conversion of part of it into pressure energy

compression of inlet air

increasing speed of incoming air

lost work

closed cycle

open cycle

both of the above

closed/open depending on other con-siderations

h.p. compressor L connected to h.p. turbine and l.p. compressor ot l.p. tur-bine

h.p. compressor is connected to l.p. turbine and l.p. compressor is con-nected to h.p. turbine

both the arrangements can be employed

all are connected in series