the time needed to cool the object

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter8: Natural Convection
Section: Chapter Questions
Problem 8.26P
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Problem 6. Suppose we want to cool an object of temperature A to a temperature of B by submerging it in an
environment of temperature To. Use Newton's Law of Cooling to show the time needed to cool the object from
temperature A to temperature B is
1
А - То
t =
In
k
В -То
where k is the cooling constant.
Transcribed Image Text:Problem 6. Suppose we want to cool an object of temperature A to a temperature of B by submerging it in an environment of temperature To. Use Newton's Law of Cooling to show the time needed to cool the object from temperature A to temperature B is 1 А - То t = In k В -То where k is the cooling constant.
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