A regenerative cycle with one stage of reheating is executed with steam expanding initially from 20 Mpaa and 540 deg C. The reheater pressure is 10 Mpaa. The steam leaves the reheater at 540 deg C. Steam is bled after reheating to one CFWH and on one OFWH a pressure equal to 5 Mpaa, and 1 Mpaa respectively. The condensate of the steam used in the CFWH is routed to the OFWH through a trap. The CFWH has a Terminal Difference of 4 deg. C. Condensation occurs at 60 deg C. Sketch the equipment and TS diagram. Isentropic expansion and compression efficiencies are 90 %. = 80%. Answer the following for 2.0 + SN/100 kg/sec of total steam circulated, and fill up the blanks with your answers in the items below: 1. Equipment and TS diagram of the cycle 2. Ideal mass of steam bled into the open heater = 3 Actual mass of steam bled into the open heater = 4. Actual engine efficiency (%) Answer: 5.Thermal efficiency of the ideal cycle (%) using Qa and Qr values. Answer: 6.Thermal efficiency of the actual cycle (%) using Wt and Wp (work) values. Answer. 7. Ideal Steam rate (kg/kw-br) Answer 8. Torque produced in KN-m at the shaft connecting the generator to the turbine if brake engine efficiency = 93% and generator rpm = 15 rev per sec Answer 9. If Cp water = 4.187 KJ/kg-K; cooling water enters the condenser at 10 deg C and leaves at 22 deg C, find amount of cooling water needed by the condenser in kg/sec. (Ideal cycle) Answer. 10. Actual Heat Rate (kJ/kw-br) Answer Use the following data for your calculations: Properties of H₂O Location Steam turbine entry Steam entry to reheater Steam from reheater to turbine Steam entry to CFWH from turbine Steam entry to OFWH from turbine Steam entry to condenser Feedwater/condensate from the condenser and at pump inlet Feedwater entry to OFWH Feedwater from OFWH Feedwater at pump outlet (pump after OFWH) Steam condensate from CFWH kg/kg. kg/kg Additional data Feedwater from CFWH with TD=4 deg C applied (actual case) H (KJ/Kg) (adiabatic efficiencies not applied) 3363.50 3155.40 3475.80 3250.13 2842.94 2215.05 251.13 252.13 762.81 784.23 1154.23 H=1134.32 KJ/kg
A regenerative cycle with one stage of reheating is executed with steam expanding initially from 20 Mpaa and 540 deg C. The reheater pressure is 10 Mpaa. The steam leaves the reheater at 540 deg C. Steam is bled after reheating to one CFWH and on one OFWH a pressure equal to 5 Mpaa, and 1 Mpaa respectively. The condensate of the steam used in the CFWH is routed to the OFWH through a trap. The CFWH has a Terminal Difference of 4 deg. C. Condensation occurs at 60 deg C. Sketch the equipment and TS diagram. Isentropic expansion and compression efficiencies are 90 %. = 80%. Answer the following for 2.0 + SN/100 kg/sec of total steam circulated, and fill up the blanks with your answers in the items below: 1. Equipment and TS diagram of the cycle 2. Ideal mass of steam bled into the open heater = 3 Actual mass of steam bled into the open heater = 4. Actual engine efficiency (%) Answer: 5.Thermal efficiency of the ideal cycle (%) using Qa and Qr values. Answer: 6.Thermal efficiency of the actual cycle (%) using Wt and Wp (work) values. Answer. 7. Ideal Steam rate (kg/kw-br) Answer 8. Torque produced in KN-m at the shaft connecting the generator to the turbine if brake engine efficiency = 93% and generator rpm = 15 rev per sec Answer 9. If Cp water = 4.187 KJ/kg-K; cooling water enters the condenser at 10 deg C and leaves at 22 deg C, find amount of cooling water needed by the condenser in kg/sec. (Ideal cycle) Answer. 10. Actual Heat Rate (kJ/kw-br) Answer Use the following data for your calculations: Properties of H₂O Location Steam turbine entry Steam entry to reheater Steam from reheater to turbine Steam entry to CFWH from turbine Steam entry to OFWH from turbine Steam entry to condenser Feedwater/condensate from the condenser and at pump inlet Feedwater entry to OFWH Feedwater from OFWH Feedwater at pump outlet (pump after OFWH) Steam condensate from CFWH kg/kg. kg/kg Additional data Feedwater from CFWH with TD=4 deg C applied (actual case) H (KJ/Kg) (adiabatic efficiencies not applied) 3363.50 3155.40 3475.80 3250.13 2842.94 2215.05 251.13 252.13 762.81 784.23 1154.23 H=1134.32 KJ/kg
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
Related questions
Question
Give Solutions
Use Mpa unit
SN = 7
Answer Asap
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 5 steps with 2 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.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