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.
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
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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%
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