Water in a 127 mm diameter, 3 m long tank cools from 930C to 88 oC in 75 minutes. The ambient temperature is 24 oC. How long will it take for the water to cool from 930C to 520C? [Hint: Use lumped analysis]

Water in a 127 mm diameter, 3 m long tank cools from 930C to 88 oC in 75 minutes. The ambient temperature is 24 oC. How long will it take for the water to cool from 930C to 520C? [Hint: Use lumped analysis]

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.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.35P

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Concept explainers

Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.

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Water in a 127 mm diameter, 3 m long tank cools from 930C to 88 oC in 75 minutes. The ambient temperature is 24 oC. How long will it take for the water to cool from 930C to 520C? [Hint: Use lumped analysis]

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