Problem # 1 Ideal Rankine Cycle – Reheat Problem 8.29 Water is the working fluids in an ideal Rankine cycle with reheat. Super-heated vapor enters the turbine at 10 MPa, 480°C and the condenser pressure is 6 kPa. Steam expands through the first-stage turbine to 0.7 MPa and then is reheated to 480°C. Determine for the cycle [a] the rate of heat transfer to the working fluid in kJ per kg of steam entering the first-stage turbine. [qm = 3913.5 kJ/kg] [b] the thermal efficiency. [n = 0.419 (41.9%)] [c] the rate of heat transfer from the working fluid to the cooling water, in kJ per kg of steam entering the first-stage turbine. [qout = 2274.1 kJ/kg] Problem # 2 Ideal Rankine Cycle – Reheat & isentropic Efficiency Problem # 2 Ideal Rankine Cycle – Reheat – Isentropic Efficiency Problem 8.30 For the cycle of Problem 8.29 reconsider the analysis assuming the pump and turbine stages each have isentropic efficiencies of 80%. Answer the same questions as in Problem 8.29 for the modified сycle. [a] the rate of heat transfer to the working fluid in kJ per kg of steam entering the first-stage turbine. [q,n = 3786.6 kJ/kg] [b] the thermal efficiency. [n = 0.345 (34.5%)] [c] the rate of heat transfer from the working fluid to the cooling water, in kJ per kg of steam entering the first-stage turbine. [qout = 2479.3 kJ/kg] %3D
Problem # 1 Ideal Rankine Cycle – Reheat Problem 8.29 Water is the working fluids in an ideal Rankine cycle with reheat. Super-heated vapor enters the turbine at 10 MPa, 480°C and the condenser pressure is 6 kPa. Steam expands through the first-stage turbine to 0.7 MPa and then is reheated to 480°C. Determine for the cycle [a] the rate of heat transfer to the working fluid in kJ per kg of steam entering the first-stage turbine. [qm = 3913.5 kJ/kg] [b] the thermal efficiency. [n = 0.419 (41.9%)] [c] the rate of heat transfer from the working fluid to the cooling water, in kJ per kg of steam entering the first-stage turbine. [qout = 2274.1 kJ/kg] Problem # 2 Ideal Rankine Cycle – Reheat & isentropic Efficiency Problem # 2 Ideal Rankine Cycle – Reheat – Isentropic Efficiency Problem 8.30 For the cycle of Problem 8.29 reconsider the analysis assuming the pump and turbine stages each have isentropic efficiencies of 80%. Answer the same questions as in Problem 8.29 for the modified сycle. [a] the rate of heat transfer to the working fluid in kJ per kg of steam entering the first-stage turbine. [q,n = 3786.6 kJ/kg] [b] the thermal efficiency. [n = 0.345 (34.5%)] [c] the rate of heat transfer from the working fluid to the cooling water, in kJ per kg of steam entering the first-stage turbine. [qout = 2479.3 kJ/kg] %3D
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
![Problem # 1
Ideal Rankine Cycle – Reheat
Problem # 1 Ideal Rankine Cycle – Reheat Problem 8.29
Water is the working fluids in an ideal Rankine cycle
with reheat. Super-heated vapor enters the turbine at 10
MPa, 480°C and the condenser pressure is 6 kPa. Steam
expands through the first-stage turbine to 0.7 MPa and
then is reheated to 480°C. Determine for the cycle
[a] the rate of heat transfer to the working fluid in kJ
per kg of steam entering the first-stage turbine. [qm
= 3913.5 kJ/kg]
[b] the thermal efficiency. [n = 0.419 (41.9%)]
[c] the rate of heat transfer from the working fluid to
the cooling water, in kJ per kg of steam entering
the first-stage turbine. [qout = 2274.1 kJ/kg]
Problem # 2
Ideal Rankine Cycle – Reheat &
isentropic Efficiency
Problem # 2 Ideal Rankine Cycle – Reheat – Isentropic
Efficiency Problem 8.30 For the cycle of Problem 8.29
reconsider the analysis assuming the pump and turbine
stages each have isentropic efficiencies of 80%. Answer
the same questions as in Problem 8.29 for the modified
сycle.
[a] the rate of heat transfer to the working fluid in kJ
per kg of steam entering the first-stage turbine. [qin
= 3786.6 kJ/kg]
[b] the thermal efficiency. [n = 0.345 (34.5%)I
[c] the rate of heat transfer from the working fluid to
the cooling water, in kJ per kg of steam entering
the first-stage turbine. [qout = 2479.3 kJ/kg]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff0710308-653b-487b-bd8d-a0c33c53858f%2Ffc49b1b1-f73e-44ca-9d0f-c646f19fc4f0%2Fau9459f_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Problem # 1
Ideal Rankine Cycle – Reheat
Problem # 1 Ideal Rankine Cycle – Reheat Problem 8.29
Water is the working fluids in an ideal Rankine cycle
with reheat. Super-heated vapor enters the turbine at 10
MPa, 480°C and the condenser pressure is 6 kPa. Steam
expands through the first-stage turbine to 0.7 MPa and
then is reheated to 480°C. Determine for the cycle
[a] the rate of heat transfer to the working fluid in kJ
per kg of steam entering the first-stage turbine. [qm
= 3913.5 kJ/kg]
[b] the thermal efficiency. [n = 0.419 (41.9%)]
[c] the rate of heat transfer from the working fluid to
the cooling water, in kJ per kg of steam entering
the first-stage turbine. [qout = 2274.1 kJ/kg]
Problem # 2
Ideal Rankine Cycle – Reheat &
isentropic Efficiency
Problem # 2 Ideal Rankine Cycle – Reheat – Isentropic
Efficiency Problem 8.30 For the cycle of Problem 8.29
reconsider the analysis assuming the pump and turbine
stages each have isentropic efficiencies of 80%. Answer
the same questions as in Problem 8.29 for the modified
сycle.
[a] the rate of heat transfer to the working fluid in kJ
per kg of steam entering the first-stage turbine. [qin
= 3786.6 kJ/kg]
[b] the thermal efficiency. [n = 0.345 (34.5%)I
[c] the rate of heat transfer from the working fluid to
the cooling water, in kJ per kg of steam entering
the first-stage turbine. [qout = 2479.3 kJ/kg]
Expert Solution
Step 1
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 9 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