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The top surface of a hot block with L= 8 m is to be cooled by forced air . air velocity and air temperature are 6 m/s and 30 °C , respectively , while surface temperature is T, = 120 °C . Determine the average heat transfer icient and the rate of heat transfer . Take the properties of air at film erature : k = 0.02917 W/m.°C v = 2.486 × 10°m²/s and Pr= 0.7166.

The top surface of a hot block with L= 8 m is to be cooled by forced air . air velocity and air temperature are 6 m/s and 30 °C , respectively , while surface temperature is T, = 120 °C . Determine the average heat transfer icient and the rate of heat transfer . Take the properties of air at film erature : k = 0.02917 W/m.°C v = 2.486 × 10°m²/s and Pr= 0.7166.

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
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Q2 : The top surface of a hot block with L= 8 m is to be cooled by forced air . The air velocity and air temperature are 6 m/s and 30 °C respectively , while the surface temperature is T, = 120 °C . Determine the average heat transfer coefficient and the rate of heat transfer . Take the properties of air at film temperature : k= 0.02917 W/m.°C v = 2.486 × 10³m?/s and Pr= 0.7166.
Transcribed Image Text:Q2 : The top surface of a hot block with L= 8 m is to be cooled by forced air . The air velocity and air temperature are 6 m/s and 30 °C respectively , while the surface temperature is T, = 120 °C . Determine the average heat transfer coefficient and the rate of heat transfer . Take the properties of air at film temperature : k= 0.02917 W/m.°C v = 2.486 × 10³m?/s and Pr= 0.7166.
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