100 lbm/h of oil at 130F is needed for a process modification. The oil will be available at 70F, so a plant engineer has designed a heater consisting of a 1-in. ID tube, 10 ft long, the wall of which will be maintained at 215F by condensing steam. Will the heater work as required? Properties of the oil may be assumed constant at the following values: Cp = 0.49Btu/lbm*F                                 μ= 1.42lbm/ft* h k = 0.0825 Btu/h*ft*F                               ρ = 55 lbm/ft^3

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
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  1. 100 lbm/h of oil at 130F is needed for a process modification. The oil will be available at 70F, so a plant engineer has designed a heater consisting of a 1-in. ID tube, 10 ft long, the wall of which will be maintained at 215F by condensing steam. Will the heater work as required? Properties of the oil may be assumed constant at the following values:

    Cp = 0.49Btu/lbm*F                                 μ= 1.42lbm/ft* h

    k = 0.0825 Btu/h*ft*F                               ρ = 55 lbm/ft^3

     
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