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A gas nside a 25in steel pipe. kness covers the steel pipe. The convective heat-transfer coefficient of the gas inside the pipe is 26.5 W/m2-K and the convective coefficient outside the cork board is 16.5 W/m2-K. The surrounding temperature is at 298.15 K. Calculate the heat loss per unit length of 1 m of pipe using resistances, and compute for the U, based on the outside area Aa.

A gas nside a 25in steel pipe. kness covers the steel pipe. The convective heat-transfer coefficient of the gas inside the pipe is 26.5 W/m2-K and the convective coefficient outside the cork board is 16.5 W/m2-K. The surrounding temperature is at 298.15 K. Calculate the heat loss per unit length of 1 m of pipe using resistances, and compute for the U, based on the outside area Aa.

Introduction to Chemical Engineering Thermodynamics
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 gas at 500 K is flowing inside a 2-in schedule 40 steel pipe. A cork board insulation of 25 mm thickness covers the steel pipe. The convective heat-transfer coefficient of the gas inside the pipe is 26.5 W/m2-K and the convective coefficient outside the cork board is 16.5 W/m2-K. The surrounding temperature is at 298.15 K. Calculate the heat loss per unit length of 1 m of pipe using resistances, and compute for the U, based on the outside area Ag.
Transcribed Image Text:A gas at 500 K is flowing inside a 2-in schedule 40 steel pipe. A cork board insulation of 25 mm thickness covers the steel pipe. The convective heat-transfer coefficient of the gas inside the pipe is 26.5 W/m2-K and the convective coefficient outside the cork board is 16.5 W/m2-K. The surrounding temperature is at 298.15 K. Calculate the heat loss per unit length of 1 m of pipe using resistances, and compute for the U, based on the outside area Ag.
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