Rankine Cycle

Rankine Cycle, Engineering Thermodynamics (2131905)

1. Gandhinagar Institute Of Technology(012) Engineering Thermodynamics (2131905) Active Learning Assignment Topic:-“ Rankine Cycle ” Branch: Mech A-3 Prepared By:- Jani Parth U. (150120119051) Guided By: Prof Jyotin Kateshia

2. Contents Rankine Cycle Schematic Diagram Of Rrankiine Cycle P-v , T-s Diagram Of Rankine Cycle Calculation Of Cycle Efficiency

3. Rankine Cycle We Have Seen That Carnot Cycle Is Not The Theoretical/Ideal Cycle For Steam Turbine Power Plant Because Of The Difficulty Of Pumping A Mixture Of Water And Steam And Delivering It As Saturated Water Only. However, This Difficulty Is Eliminated In Rankin Cycle By Complete Condensation Of Water Vapor In The Condenser, And Then, Pumping The Water Isentropically To Boiler Pressure. Rankine Cycle Is A Theoretical/Ideal Cycle For Comparing The Performance Of Steam Power Plants.

4. (I) Boiler: In Boiler The Working Fluid (Water) At State ‘4’in Sub Cooled Condition Is Converted Into Dry Saturated Steam At State ‘1’ By Receiving Heat ‘ Q a ’ From Combustion Of Fuel (High Temperature Heat Source) Through The Following Processes. (Ii) Steam Turbine: In The Steam Turbine, The Dry Saturated Steam From The Boiler At State ‘1’ At Pressure ‘ P h ’ Expands Isentropically To State ‘2’ (Wet Steam) At Pressure ‘P l ’ And Thus Produce Mechanical Work (Iii) Condenser: In The Condenser, The Exhaust Wet Steam From Turbine At State ‘2’ Is Condensed By Rejecting Heat ‘ Q r ’ To The Cooling Water.

5. (Iv) Feed Pump: The Feed Pump Is Used To Pump The Condensate At State ‘3’ (Saturated Water) From The Hot-well To The Boiler At The Boiler Pressure

6. Calculation Of Cycle Efficiency Heat Supplied In Boiler, Work Developed By Turrbune , Heat Rejected To Cooling Water In Condenser, Work Input To Feed Pump,  

7. Net Work Output; Rankine Cycle Efficiency = = =  

8. The Capacity Of The Steam Turbine Power Plant Is Often Expressed In The Turm Of Steam Rate . Steam Rate = = = = Heat Rate = =