Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
Bartleby Related Questions Icon

Related questions

Question
100%

In an ideal reheat cycle, the steam throttled condition is 8 MPa and 480 degree C. the steam is then reheated to MPa and 460 degree C. the turbine exhaust is 60 degree C. The required values of some state point properties are tabulated below.

 

5. Calculate the thermal efficiency of the cycle

WW
B
2.8MPa
540°C
13.85MPa
540°C
8MPa
480°C 3
2MPa
460°C
S,=S,
S
19.94kPa
60°C
T,=
! T₂=
75% 75%
6
3.4kPa 4
6
At P = 8 MPa and T = 480 °C
s (kJ/kg-K)
h (kJ/kg)
6.6586
3348.4
At P = 2 MPa
(for superheated steam with s1 = s2)
s (kJ/kg-K)
h (kJ/kg)
6.6388
2952.3
S
h
6.6828
2976.4
At P = 2 MPa and T = 460 °C
s (kJ/kg-K)
h (kJ/kg)
7.3147
3379.5
At 60 °C
Psat 19.94 kPa
vf = 0.0010172 m^3/kg
sf = 0.8312 kJ/kg-K
hf = 251.13 kJ/kg
sfg = 7.0784 kJ/kg-K
hfg = 2358.5 kJ/kg
expand button
Transcribed Image Text:WW B 2.8MPa 540°C 13.85MPa 540°C 8MPa 480°C 3 2MPa 460°C S,=S, S 19.94kPa 60°C T,= ! T₂= 75% 75% 6 3.4kPa 4 6 At P = 8 MPa and T = 480 °C s (kJ/kg-K) h (kJ/kg) 6.6586 3348.4 At P = 2 MPa (for superheated steam with s1 = s2) s (kJ/kg-K) h (kJ/kg) 6.6388 2952.3 S h 6.6828 2976.4 At P = 2 MPa and T = 460 °C s (kJ/kg-K) h (kJ/kg) 7.3147 3379.5 At 60 °C Psat 19.94 kPa vf = 0.0010172 m^3/kg sf = 0.8312 kJ/kg-K hf = 251.13 kJ/kg sfg = 7.0784 kJ/kg-K hfg = 2358.5 kJ/kg
Ο Ο Ο
39.61%
38.37%
36.37%
37.61%
expand button
Transcribed Image Text:Ο Ο Ο 39.61% 38.37% 36.37% 37.61%
Expert Solution
Check Mark
Knowledge Booster
Background pattern image
Mechanical Engineering
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.
Similar questions
Recommended textbooks for you
Text book image
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Text book image
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Text book image
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Text book image
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Text book image
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Text book image
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY