A steel pipeline, 2-in. schedule 40 pipe, contains saturated steam at 120°C, The line is insulated with 25 mm of asbestos. Assuming that the inside surface temperature of the metal wall is at 120°C and the outer surface of the insulation is at 28°C, calculate the heat loss for 30.5 m of pipe. Also, calculate the kg of steam condensed per hour in the pipe due to the heat loss. The average k for steel is 45 W/m: K and the k for asbestos is 0.182. A steel pipeline, 2-in. schedule 40 pipe, contains saturatedsteam at 120°C. The line is insulated with 25mm of asbestos. Assuming that the inside surfacetemperature of the metal wall is at 120°C and the outer surface of installation is at 28 °C,calculate the heat loss for 30.5m of pipe. Also, calculate the kg of steam condensed per hour inthe pipe due to the heat loss. Use the average thermal conductivity of steel and asbestos.

Answered: A steel pipeline, 2-in. schedule 40…

Introduction to Chemical Engineering Thermodynamics

8th Edition

ISBN:9781259696527

Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Chapter1: Introduction

Section: Chapter Questions

Problem 1.1P

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A steel pipeline, 2-in. schedule 40 pipe, contains saturated steam at 120°C, The line is insulated with 25 mm of asbestos. Assuming that the inside surface temperature of the metal wall is at 120°C and the outer surface of the insulation is at 28°C, calculate the heat loss for 30.5 m of pipe. Also, calculate the kg of steam condensed per hour in the pipe due to the heat loss. The average k for steel is 45 W/m: K and the k for asbestos is 0.182.