Q10/ A large slab at 350°C suddenly has its surface exposed to convection 30°C with h = 80 W/m²K. Determine the temperatures at a depth of 40 m and at the surface after 300 seconds, given thermal diffusivity 5.6

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.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.17P: The heat transfer rate from hot air by convection at 100C flowing over one side of a flat plate with...
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Q10/
A large slab at 350°C suddenly has its surface exposed to convection at
30°C with h = 80 W/m2K. Determine the temperatures at a depth of 40 mm
and at the surface after 300 seconds, given thermal diffusivity
5.6 x
10-6 m2 /s and conductivity = 25 W/mK. Answer: 334.6°C, 306.7°C
Transcribed Image Text:Q10/ A large slab at 350°C suddenly has its surface exposed to convection at 30°C with h = 80 W/m2K. Determine the temperatures at a depth of 40 mm and at the surface after 300 seconds, given thermal diffusivity 5.6 x 10-6 m2 /s and conductivity = 25 W/mK. Answer: 334.6°C, 306.7°C
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