The efficiency will decrease. Remeber the formula for effiency for a cycle: What we want over what we pay for. So, ηT=WT/QA
Where
WT = Work done by the turbine QA = Heat taken from the hot...
Rankine cycle is original cycle...where Carnot is hypothetical one...in this process we use compressere insted of pump which shows that the condensation process is not fully completed.ref:engineering...