4. In 1916, Nusselt derived a theoretical relation for predicting the coefficient of heat transfer between a pure saturated vapor and a colder surface: 1/4 h = 0.943 k³p²gX LUAT BTU where h is the mean heat transfer coefficient (h[=] (hr))(0F)), k is the thermal conductivity (k[=] 5), ), p is the density (p[=] #1), 9 is acceleration due to gravity (g[-] 4.17 x 108), A is the enthalpy change of evaporation (A[=] BTU), BTU (hr) (ft)(°F)
4. In 1916, Nusselt derived a theoretical relation for predicting the coefficient of heat transfer between a pure saturated vapor and a colder surface: 1/4 h = 0.943 k³p²gX LUAT BTU where h is the mean heat transfer coefficient (h[=] (hr))(0F)), k is the thermal conductivity (k[=] 5), ), p is the density (p[=] #1), 9 is acceleration due to gravity (g[-] 4.17 x 108), A is the enthalpy change of evaporation (A[=] BTU), BTU (hr) (ft)(°F)
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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Chemical engineering problem
![h = 0.943
4. In 1916, Nusselt derived a theoretical relation for predicting the coefficient of
heat transfer between a pure saturated vapor and a colder surface:
1/4
k³p²gX'
LUAT
(
Page
where h is the mean heat transfer coefficient (h[=]
5), k is the thermal
BTU
conductivity (k[=] (hr)), p is the density (p[=]), g is acceleration due to
gravity (g[-] 4.17 x 108), A is the enthalpy change of evaporation (A[=] BTU),
L is the length of the tube in ft, µ is the viscosity (μµ[=]
temperature difference in °F.
What are the units of the constant 0.943?
BTU
(hr)(ft²)(°F)
1 > of 6
lbm
(hr) (ft)
7), and AT is the
ZOOM
+](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9ba88ecd-654b-4f6b-9783-e93c33ca6a16%2F81cea3b0-b38a-47a4-93c2-4e231d5617e3%2Fjv5vghg_processed.png&w=3840&q=75)
Transcribed Image Text:h = 0.943
4. In 1916, Nusselt derived a theoretical relation for predicting the coefficient of
heat transfer between a pure saturated vapor and a colder surface:
1/4
k³p²gX'
LUAT
(
Page
where h is the mean heat transfer coefficient (h[=]
5), k is the thermal
BTU
conductivity (k[=] (hr)), p is the density (p[=]), g is acceleration due to
gravity (g[-] 4.17 x 108), A is the enthalpy change of evaporation (A[=] BTU),
L is the length of the tube in ft, µ is the viscosity (μµ[=]
temperature difference in °F.
What are the units of the constant 0.943?
BTU
(hr)(ft²)(°F)
1 > of 6
lbm
(hr) (ft)
7), and AT is the
ZOOM
+
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