Aone-dimensional slab without heat generation has a thickness of 20 mm with surfaces main- tained at temperatures of 275 k and 325 k. determine the heat flux through the system if it is constructed from (a) pure aluminum, (b) aisi 316 stainless steel, and (c) concrete.

a) 512.5 KW/m2

b) 40.75 KW/m2

c) 2 KW/m2

Explanation:

Given data;

T_2 = 325 K

T_1 = 275 K

dx = 0.20 mm

a) for aluminium   K = 205 W/m k

heat flux

               = 512.5 KW/m2

b) for AISI 316 stainless steel

k = 16.3 W/ m k

heat flux

               = 40.75 KW/m2

C) for Concrete

k = 0.8 W/ m k

heat flux

               = 2 KW/m2

answer:

6.3 is the answer

explanation:

because it is the ex