Answered: You are part of a team constructing a…

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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Question

You are part of a team constructing a pipeline to transfer shale gas produced at the ocean
floor to the coastline. The temperature of the pipeline is nearly constant at 2 oC. The pipeline
is made of smooth stainless steel and is 0.3 m in diameter and 100 m long. The average
velocity of shale gas is 10 m/s and the inlet temperature is 20 oC
** Useful shale gas properties at 20 oC (Table A-12 for propane gas):
(use these values for calculations and validate them later)
• Density (ρ) = 18.13 kg/m3
• Cp = 1974 J/kg-K
• Viscosity (μ) = 8.54*10-6 kg/m-s
• Pr = 0.918
• k = 0.01836 W/m-K
a) Is the flow laminar or turbulent? Is the flow hydrodynamically and thermally fully developed?
(circle your answer below and provide justification.
• Laminar vs. Turbulent
• Hydrodynamically developing vs. developed
• Thermally developing vs. fully developed
Justification:

b) Calculate convective heat transfer coefficient (h).
c) Calculate the exit temperature of the shale gas.
d) Are the shale gas properties estimated at 20 oC appropriate? If not, what shall you do to
correct

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