Example Problem - Rankine Cycle (2) - Rankine Cycle with Reheating

Consider a reheated Rankine cycle using steam as the working fluid. Steam leaves the boiler and enters the turbine at 4 MPa, 400°C and is expanded in the low-pressure turbine to 10 kPa. An engineer is considering adding a 400 kPa reheat stage to this facility, which would bring the steam back up 400°C before expanding again.
Determine/complete the following:
(a) η_th of the facility without reheat
(b) η_th of the facility with reheat
PDF with Solution: sdsu.box.com/s...

[@zacchsplash]

This was amazing to watch and follow. Thank you for all your hard work!

[@andrewmelean8259]

Fantastic! Question at 22:51 , what if your S3 was greater than the local Sg? Would we just go to the superheated tables and interpolate? Thanks!

[@pauldaeheeparkchung1513]

thank you

[@edtonjhonduldulao7316]

Steam enters the boiler at 20 MPa and 500 degrees Celsius and expanded inside the turbine until
the steam becomes saturated where it is bled off on at its saturation pressure and at the same time
reheated to the same temperature. The steam is expanded to the intermediate turbine where it is
extracted to a pressure of 1 MPa and at reheated to the same temperature. It is then expanded to
the low-pressure turbine at a condenser pressure of 100 kPa. Use open feedwater heaters for the
extraction.
Pls solve this i give u money