A very thick slab with thermal diffusivity 5.6x10-6 m2/s and thermal conductivity 20 W/m.K js initially at a uniform temperature of 325 oC. Suddenly, the surface is exposed to a coolant at 15 oC for which the convection heat transfer coefficient is 100 W/m2 .K.--> Determine temperatures at the surface and at a depth of 45 mm after 3 min have elapsed. tially at a uniform temperature of 325°C. Suddenly, the10- m/s and thermal conductivity 20 W/m K is ini-5.91 A very thick slab with thermal diffusivity 5.6 Xsurface is exposed to a coolant at 15°C for which theconvection heat transfer coefficient is 100 W/m² ·K.(a) Determine temperatures at the surface and at adepth of 45 mm after 3 min have elapsed.

Given, x→0 to0.45 mt=3 min or 180 sα=5.6×10-6 m2/sk=20 W/mKh=100 W/m2K

Answered: A very thick slab with thermal…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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A very thick slab with thermal diffusivity 5.6x10^-6 m²/s and thermal conductivity 20 W/m^.K js initially at a uniform temperature of 325 ^oC. Suddenly, the surface is exposed to a coolant at 15 ^oC for which the convection heat transfer coefficient is 100 W/m² ^.K.

--> Determine temperatures at the surface and at a depth of 45 mm after 3 min have elapsed.

tially at a uniform temperature of 325°C. Suddenly, the
10- m/s and thermal conductivity 20 W/m K is ini-
5.91 A very thick slab with thermal diffusivity 5.6 X
surface is exposed to a coolant at 15°C for which the
convection heat transfer coefficient is 100 W/m² ·K.
(a) Determine temperatures at the surface and at a
depth of 45 mm after 3 min have elapsed.

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