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Q2/ Air at atmospheric pressure and 27 °C is blown across a long 4.0 cm diameter tube at a velocity of 20 m/ sec. What dimension (i.e. side) of a square duct would be needed to give the same heat transfer to the duct? Wall temperature is 50 °C in both cases. Nu=0.0266 Re0.805 Pr.1/3 Nu=0.102 Re0.675 Prl/3 u/p= 17.74 x 10-6 m²/sec k= 0.02711 W/m °C Pr=0.70 For tube For square duct Re, PVD u

Q2/ Air at atmospheric pressure and 27 °C is blown across a long 4.0 cm diameter tube at a velocity of 20 m/ sec. What dimension (i.e. side) of a square duct would be needed to give the same heat transfer to the duct? Wall temperature is 50 °C in both cases. Nu=0.0266 Re0.805 Pr.1/3 Nu=0.102 Re0.675 Prl/3 u/p= 17.74 x 10-6 m²/sec k= 0.02711 W/m °C Pr=0.70 For tube For square duct Re, PVD u

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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Q2/ Air at atmospheric pressure and 27 °C is blown across a long 4.0 cm diameter tube at a velocity of 20 m/ sec. What dimension (i.e. side) of a square duct would be needed to give the same heat transfer to the duct? Wall temperature is 50 °C in both cases. Nu=0.0266 Re0.805 Pr.1/3 Nu=0.102 Re0.675 Pr.1/3 μ/p= 17.74 x 10-6 m²/sec k=0.02711 W/m °C Pr= 0.70 For tube For square duct Re, PVD м
Transcribed Image Text:Q2/ Air at atmospheric pressure and 27 °C is blown across a long 4.0 cm diameter tube at a velocity of 20 m/ sec. What dimension (i.e. side) of a square duct would be needed to give the same heat transfer to the duct? Wall temperature is 50 °C in both cases. Nu=0.0266 Re0.805 Pr.1/3 Nu=0.102 Re0.675 Pr.1/3 μ/p= 17.74 x 10-6 m²/sec k=0.02711 W/m °C Pr= 0.70 For tube For square duct Re, PVD м
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