high thermal efficiency

reduction in compressor work

decrease of heat loss in exhaust

maximum work output

increase temperature

reduce turbine size

increase power output

increase speed

(a) increase of work ratio

(b) decrease of thermal efficiency

(c) decrease of work ratio

both (a) and (b) above

net work output and work done by turbine

net work output and heat supplied

work done by turbine and heat supplied

work done by turbine and net work output

decreasing the compression work

increasing the compression work

increasing the turbine work

(a) and (c) above.