A thin, flat plate that has a length L = 0.2 m and a width W = 0.2 m is oriented parallel to an airstream having a velocity of 40 m/s. The air is at a temperature of T∞ = 20o C and the plate is maintained at a temperature of Ts = 120oC. The air flows over the top and bottom surfaces of the plate, and measurement of the drag force gives a value of F = 0.075 N. Use the four analogies (Reynolds analogy, Colburn analogy, Prandtl analogy, and Von Karman analogy) to determine the convection heat transfer coefficient. Calculate the heat transfer rate from both sides of the plate to the air using the convection heat transfer coefficients obtained from analogies. Comment on a comparison of the results.
A thin, flat plate that has a length L = 0.2 m and a width W = 0.2 m is oriented parallel to an airstream having a velocity of 40 m/s. The air is at a temperature of T∞ = 20o C and the plate is maintained at a temperature of Ts = 120oC. The air flows over the top and bottom surfaces of the plate, and measurement of the drag force gives a value of F = 0.075 N. Use the four analogies (Reynolds analogy, Colburn analogy, Prandtl analogy, and Von Karman analogy) to determine the convection heat transfer coefficient. Calculate the heat transfer rate from both sides of the plate to the air using the convection heat transfer coefficients obtained from analogies. Comment on a comparison of the results.
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 thin, flat plate that has a length L = 0.2 m and a width W = 0.2 m is oriented
parallel to an airstream having a velocity of 40 m/s. The air is at a temperature of T∞ = 20o
C and the plate is maintained at a temperature of Ts = 120oC. The air flows over the top and
bottom surfaces of the plate, and measurement of the drag force gives a value of F = 0.075
N. Use the four analogies (Reynolds analogy, Colburn analogy, Prandtl
analogy, and Von Karman analogy) to determine the convection heat transfer coefficient.
Calculate the heat transfer rate from both sides of the plate to the air using the convection
heat transfer coefficients obtained from analogies. Comment on a comparison of the results.
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