Solve all 4. 4-1 A steam cycle power system operates on an ideal Rankine cycle with two open feedwaterheaters. Steam enters the turbine at 480°C and 20 MPa and exhausts at 10 kPa to the condenser.There are two steam extractions from the turbine - at 1.2 MPa and 0.2 MPa. Steam leaves thefeedwater heaters (going to the pumps) as a saturated liquid. Mass flow rate of the steam into theturbine is 20 kg/sec. Determine (a) extractions y and z as a fraction of the total steam mass flowrate, (b) the rate of heat rejected from the condenser (kW). (c) net power output of the plant (inkW) and (d) the overall thermal efficiencyTurbineBoiler20 MP8.101.2 MPa6.1-y9 z0.2 MPafwh IIfwh ICondenser)10 kPa10P IIPIIPI

Given data, Pressure and temperature of steam at state 7, P7 = 20 MPa and T7 = 480 °C Mass flow rate…

Answered: 4-1 A steam cycle power system operates…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

In a Rankine cycle with reheating, the steam leaves the boiler at 2.5 MPa and 600 ºC and enters the high pressure turbine where it expands to a pressure of 1 MPa to be then subjected to a reheating process from where it leaves at 1 MPa and 600 ° C. The steam at these conditions enters the low pressure turbine and expands up to the condenser pressure of 50 kPa. The heat that is extracted in the condenser is 1500 kJ / s. If the adiabatic efficiency of the turbines and the pump is 95%, determine the total heat flow in kJ / s delivered to the boiler.
A steam power plant operates on a Rankine cycle and has an open feedwater heater. Heat is rejected in the condenser at 30kPa, while the boiler has a pressure of 8MPA. Some of the steam is extracted mi- expansion at 0.4MPA to heat the open feedwater heater. The turbine inlet temperature is 480°C. First draw the T-s diagram for this cycle. Use the number convention from the device diagram below and label all work and heat flows. Then, determine the net work per kilogram of steam and the cycle's thermal efficiency. Wr TURBINE OPEN FEEDWATER HEATER COND.
Please solve this Prolem and show the written solution. Thank you very much
3.) A steam power plant uses the ideal Reheat-Regenerative Rankine cycle where the steam enters the high-pressure turbine at 4 MPa and 300C. It partially expands to 600 kPa where some steam is extracted for feedwater heating while the rest is reheated to the same temperature. After expanding again, it enters the condenser at 10 kPa. Sketch the schematic diagram and the TS diagram with labeled points, and solve for mass taken for feedwater heating, Qa, Qr, Wt, Wp, Wnet, thermal efficiency, and Steam rate. Neglect the condensate pump work. kJ kj kJ kJ kJ kg 1715.88- 20.01%, 2667.84- 955.97 3.74 951.96 35.68%, 3.78. " J kg kg kg kg kWh kg "
3.) A steam power plant uses the ideal Reheat-Regenerative Rankine cycle where the steam enters the high-pressure turbine at 4 MPa and 300C. It partially expands to 600 kPa where some steam is extracted for feedwater heating while the rest is reheated to the same temperature. After expanding again, it enters the condenser at 10 kPa. Sketch the schematic diagram and the TS diagram with labeled points, and solve for mass taken for feedwater heating, Qa, Qr, Wt, Wp, Wnet, thermal efficiency, and Steam rate. Neglect the condensate pump work. kg 20.01%, 2667.841715.52955.97 k, 3.74, 952.32,35.69%, 3.78 kg kWh Specific Volume Internal Energy Temp Enthalpy Prom MP Entropy Sal Sat, Sat. Liquid Sat. Sat. Liquid Evap. Vapor Liquid Uy Evap. Sat. Vapor t Р 10% Evap. Vapor Up u, hr Liquid S, h h₂ 8% 8₂ 006113 .01 1.0002 206 136 .0007 1.89 1.0001 181 255 3.77 1.0001 159 675 1.0001 142 789 0005 ,00 2375.3 2375.3 7.90 2370.0 2377.9 15.81 2364.7 2380.6 22.88 2360.0 2382.9 01 2501.3 2501.4 7.91 2496.9…
A simple Ideal Rankine cycle with water as the working fluid operates between the pressure limits of 4 MPa in the boiler and 5 kPa in the condenser and a turbine inlet temperature of 700°C. The boller is sized to provide a steam flow of 50 kg/s. Determine the power produced by the turbine and consumed by the pump. Use steam tables. The power produced by the turbine is The power consumed by the pump is kW. kW.
EXAMPLE 4-5 A steam power plant operates on an ideal reheat- regenerative Rankine cycle and has a net power output of 80 MW. Steam enters the high- pressure turbine at 10 MPa and 550°C and leaves at 0.8 MPa. Some steam is extracted at this pressure to heat the feedwater in an open feedwater heater. The rest of the steam is reheated to 500°C and is expanded in the low-pressure turbine to the condenser pressure of 10 kPa. Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the mass flow rate of steam through the boiler and (b) the thermal efficiency of the cycle.
The closed Rankine cycle of a CHP station processes 1800 tonnes of working fluid per hour. The boiler raises the temperature of the high-pressure water from 45°C at 25 MPa to the required 550°c isobarically. The superheated fluid enters the turbine. As it passes through the turbine, the steam pressure falls as it gives energy to the turbine blades. The water leaves the turbine as saturated steam at 0.10 MPa. How much shaft work is generated? • Derive, simplify, and solve the energy balance for this system. • Show all your workings in a neat manner: State your assumption(s), show all formulae, calculate step-by-step, use units at every step, and round results correctly.
A steam power plant operating on a simple ideal Rankine cycle maintains the boiler at 6000 kPa, the turbine inlet at 600C, and the condenser at 50 kPa. Compare the thermal efficiency of this cycle when it is operated so that the liquid enters the pump as a saturated liquid against that when the liquid enters the pump 11.3C cooler than a saturated liquid at the condenser pressure.
please Solve this problem and show the full solution. Thank you very much
In the Steam Power Plant, superheated steam at 50 bar and 600C was expanded in the turbine down to the condenser pressure of 0.2 bar. If the plant is modified to Rankine Cycle with Reheater, the steam at 50 bar and 600C enters the high-pressure turbine and is expanded to 5 bar. The exhaust steam flows through the reheater where it is heated to 400C at constant pressure. Then the reheated steam is further expanded in the low pressure turbine to the condenser pressure of 0.2 bar. Find the change in net work and the cycle efficiency.
The net work output and the thermal efficiency for the Carnot and the simple ideal Rankine cycles with steam as the working fluid are to be calculated and compared. Steam enters the turbine in both cases at 5 MPa as a saturated vapor, and the condenser pressure is 50 kPa. In the Rankine cycle, the condenser exit state is saturated liquid and in the Carnot cycle, the boiler inlet state is saturated liquid. Draw the T-s diagrams for both cycles.

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS