2 Consider a partofa district-heating distribution system. The supply and re-turn pipes both have diameters O.2 m (without insulation) and 0.04-m insula-tion layers. The distance between the pipes are 0.6 m, and the distance to theground surface is 0.9 m. Calculate the lost power over 100 m pipe length ifthe supply temperature is 75 °C, the return temperature is 45 °C, the ambienttemperature is –5°C, the ground heat conductivity is 1.5 W/(m-K) and theinsulation heat conductivity is 0.03 W/(m-K).Correct = 6330 W

Taking equation d^ 2 u(x) dx^ 2 = r(x),x (1(0)= x in[0, pπ] )=u( π)=0 (1) f(x)=sin(x ) We create…

Answered: 1. Calculate the lost power

Engineering

Mechanical Engineering

1. Calculate the lost power

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.

Chapter10: Heat Exchangers

Section: Chapter Questions

Problem 10.46P

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