An oil is acting as a lubricant for a pair of cylindrical surfaces such as those shown in The angular velocity of the outer cylinder is 7908 rpnt. The outer cylinder has a radius of 5.06 cm, and the clearance between the cylinders is 0.027 cm. What is the maxi- mum temperature in the oil if both wall temperatures are known to be 158° F? The physical properties of the oil are

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
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Chapter9: Heat Transfer With Phase Change
Section: Chapter Questions
Problem 9.26P
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ricant
An oil is acting as a lubricant for a pair of cylindrical surfaces such as those shown in
1. The angular velocity of the outer cylinder is 7908 rpmt. The outer cylinder has
a radius of 5.06 cm, and the clearance between the cylinders is 0.027 cm. What is the maxi-
mum temperature in the oil if both wall temperatures are known to be 158° F? The physical
properties of the oil are
viscosity
density
thermal conductivity
92.3 cp
1.22 g cm-3
0.0055 cal sec-1 cm-1 ° C-1
Transcribed Image Text:ricant An oil is acting as a lubricant for a pair of cylindrical surfaces such as those shown in 1. The angular velocity of the outer cylinder is 7908 rpmt. The outer cylinder has a radius of 5.06 cm, and the clearance between the cylinders is 0.027 cm. What is the maxi- mum temperature in the oil if both wall temperatures are known to be 158° F? The physical properties of the oil are viscosity density thermal conductivity 92.3 cp 1.22 g cm-3 0.0055 cal sec-1 cm-1 ° C-1
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