A 10 m long steel pipe carrying steam has a wall thickness of 0.5 cm and an inside radius of 5 cm. The temperature of the outer surface of pipe is 198 °C and the temperature of the internal surface is at the steam temperature of 200 °C. The mass flow rate of steam through the pipe is 0.68 kg/s. The steam enters the pipe as 100% saturated vapour at 200 °C and some of it condenses due to the heat loss through the pipe. Consider, 50 W/(m.K) as thermal conductivity of steel and 1940.6 KJ/kg as Latent heat of vaporization of water at 200 °C. Calculate the mass fraction of liquid in the flowing stream at the downstream end of the pipe.

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
icon
Related questions
Question

e

A 10 m long steel pipe carrying steam has a wall thickness of 0.5 cm and an inside
radius of 5 cm. The temperature of the outer surface of pipe is 198 °C and the
temperature of the internal surface is at the steam temperature of 200 °C. The mass
flow rate of steam through the pipe is 0.68 kg/s. The steam enters the pipe as 100%
saturated vapour at 200 °C and some of it condenses due to the heat loss through
the pipe. Consider, 50 W/(m.K) as thermal conductivity of steel and 1940.6 KJ/kg as
Latent heat of vaporization of water at 200 °C. Calculate the mass fraction of liquid
in the flowing stream at the downstream end of the pipe.
5%
10%
15%
20%
Transcribed Image Text:A 10 m long steel pipe carrying steam has a wall thickness of 0.5 cm and an inside radius of 5 cm. The temperature of the outer surface of pipe is 198 °C and the temperature of the internal surface is at the steam temperature of 200 °C. The mass flow rate of steam through the pipe is 0.68 kg/s. The steam enters the pipe as 100% saturated vapour at 200 °C and some of it condenses due to the heat loss through the pipe. Consider, 50 W/(m.K) as thermal conductivity of steel and 1940.6 KJ/kg as Latent heat of vaporization of water at 200 °C. Calculate the mass fraction of liquid in the flowing stream at the downstream end of the pipe. 5% 10% 15% 20%
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Slope and Deflection
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
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY