A 15 cm outer diameter steam pipe is lagged to 25 cm diameter with magnesia of thermal conductivity 0.05 W/mK and further lagged with 30 cm diameter laminated asbestos of thermal conductivity 0.07 W/mK. Inner temperature of steam is 200° C and outer temperature is 25° C. Calculate the mass of steam condensed per hour for 120 m length of pipe. Assume latent heat of steam is 1900 kJ/kg.
A 15 cm outer diameter steam pipe is lagged to 25 cm diameter with magnesia of thermal conductivity 0.05 W/mK and further lagged with 30 cm diameter laminated asbestos of thermal conductivity 0.07 W/mK. Inner temperature of steam is 200° C and outer temperature is 25° C. Calculate the mass of steam condensed per hour for 120 m length of pipe. Assume latent heat of steam is 1900 kJ/kg.
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter2: Steady Heat Conduction
Section: Chapter Questions
Problem 2.47P
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A 15 cm outer diameter steam pipe is lagged to 25 cm diameter with magnesia of thermal conductivity 0.05 W/mK and further lagged with 30 cm diameter laminated asbestos of thermal conductivity 0.07 W/mK. Inner temperature of steam is 200° C and outer temperature is 25° C. Calculate the mass of steam condensed per hour for 120 m length of pipe. Assume latent heat of steam is 1900 kJ/kg.
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