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3. An air duct is of rectangular cross-section 300 mm wide by 450 mm deep. Determine the mean velocity in the duct when the rate of flow is 0.42 m/s. If the duct tapers to a cross- section 150 mm wide by 400 mm deep, what will be the mean velocity in the reduced section assuming that the density remains unchanged?

3. An air duct is of rectangular cross-section 300 mm wide by 450 mm deep. Determine the mean velocity in the duct when the rate of flow is 0.42 m/s. If the duct tapers to a cross- section 150 mm wide by 400 mm deep, what will be the mean velocity in the reduced section assuming that the density remains unchanged?

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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3. An air duct is of rectangular cross-section 300 mm wide by 450 mm deep. Determine the mean velocity in the duct when the rate of flow is 0.42 m³/s. If the duct tapers to a cross- section 150 mm wide by 400 mm deep, what will be the mean velocity in the reduced section assuming that the density remains unchanged?
Transcribed Image Text:3. An air duct is of rectangular cross-section 300 mm wide by 450 mm deep. Determine the mean velocity in the duct when the rate of flow is 0.42 m³/s. If the duct tapers to a cross- section 150 mm wide by 400 mm deep, what will be the mean velocity in the reduced section assuming that the density remains unchanged?
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