(a)
The quality of the steam at the turbine exit.
(a)
Explanation of Solution
Given:
Pressure of steam at the condenser
Pressure of steam at the turbine
Temperature of steam at the turbine
Net power produced by the plant
Isentropic efficiency of the turbine
Calculation:
Draw the
The pressures are constant for the process 2 to 3 and process 4 to 1.
The entropies are constant for the process 1 to 2 and process 3 to 4.
Refer Table A-5, “Saturated water-Pressure table”, obtain the enthalpy and specific volume at state 1 corresponding to the pressure of
Refer Table A-6, “Superheated water”, obtain the enthalpy and entropy at state 3 corresponding to the pressure of
Refer Table A-5, “Saturated water-Pressure table”, obtain the following properties corresponding to the pressure of
Calculate the work done by the pump during process 1-2
Calculate the enthalpy at state 2
Calculate the quality of water at state 4
Thus, the quality of the steam at the turbine exit is
(b)
The thermal efficiency of the cycle.
(b)
Explanation of Solution
Calculate the enthalpy at state 4s
Calculate the enthalpy at state 4
Calculate the heat supplied in the boiler
Calculate the thermal efficiency of the cycle
Thus, the thermal efficiency of the cycle is
(c)
The mass flow rate of the steam.
(c)
Explanation of Solution
Calculate the mass flow rate of the steam
Thus, the mass flow rate of the steam is
Want to see more full solutions like this?
Chapter 9 Solutions
FUND OF THERMAL-FLUID SCIENCES W/CONNEC
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY