Losses by Natural Convection from a Cylinder. A vertical cylinder 76.2 mm in diameter and 121.9 mm high is maintained at 397.1 K at its surface. It loses heat by natural convection to air at 294.3 K. Heat is lost from the cylindrical side and the flat circular end at the top. Calculate the heat loss neglecting radiation losses. Use the simplified equations of Table 4.7-2 and those equations for the lowest range of NG, NP.. The equivalent L to use for the top flat surface is 0.9 times the diameter. Gr Ans. 9 = 26.0 W
Losses by Natural Convection from a Cylinder. A vertical cylinder 76.2 mm in diameter and 121.9 mm high is maintained at 397.1 K at its surface. It loses heat by natural convection to air at 294.3 K. Heat is lost from the cylindrical side and the flat circular end at the top. Calculate the heat loss neglecting radiation losses. Use the simplified equations of Table 4.7-2 and those equations for the lowest range of NG, NP.. The equivalent L to use for the top flat surface is 0.9 times the diameter. Gr Ans. 9 = 26.0 W
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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Transcribed Image Text:Losses by Natural Convection from a Cylinder. A vertical cylinder 76.2 mm in
diameter and 121.9 mm high is maintained at 397.1 K at its surface. It loses heat
by natural convection to air at 294.3 K. Heat is lost from the cylindrical side
and the flat circular end at the top. Calculate the heat loss neglecting radiation
losses. Use the simplified equations of Table 4.7-2 and those equations for the
lowest range of NG, NP.. The equivalent L to use for the top flat surface is 0.9
times the diameter.
Gr
Ans.
9 = 26.0 W
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