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Nu = 0.5Re0.8 Pr0.4.

Nu = 0.5Re0.8 Pr0.4.

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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Heat transfer correlation for a given convection situation was obtained as Nu = 0.5Re0.8 Pr0.4. Dry air passes over a similar object of 2 m characteristic length with a velocity of 10 m/s. What is the evaporation rate in unit area if at the liquid surface the mass concentration (the partial density of the liquid) is 0.00792 kg/m3? Physical properties; ν = 20x10-6 m2/s, Pr = 1, Le =1



A. 0.0025 kg/m2s

B. 0.31548 m/s

C. 0.31548 kg/m2s

D. 0.0025 m/s

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