$(25$ points$)$ A steam power plant operates on a reheat$-$regenerative Rankine cycle with a

total mass flow rate of $2k\frac{g}{s}.$ Steam enters the high$-$pressure turbine at $10$ MPa and

$650C.$ Some steam is extracted at this pressure to heat the feedwater in an open $FWH.$

The rest of the steam is reheated to $600C$ and is expanded in the low$-$pressure turbine to

the condenser pressure of $100$kPa. The pump and turbine efficiencies are given as $86\%$

and $93\%,$ respectively. You may neglect pressure drop across the boiler and condenser.

$($a$)$JUST sketch the cycle on a T$-$s diagram with respect to saturation lines PLEASE.