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Consider the fireclay brick wall of Example 1.1 that is operating under different thermal conditions. The temperature distribution, at an instant in time, is T(x) = a + bx where a = 1400 K and b =− 1000 K/m. Determine the heat fluxes, q " , and heat rates, , at and x qx x = 0 x = L. Do steady state conditions

Respuesta :

Answer:

q= 30 W/m²

Explanation:

Given that

T(x) = a + bx

a = 1400 K and b =− 1000 K/m

We know that heat flux given as

q= - K dT/dx

K=Conductivity

For fireclay brick wall

K=0.03 W/m.k

T(x) = a + bx

dT/dx = b = -1000  K/m

q= - K dT/dx

q= - 0.03 x ( -1000) W/m²

q= 30 W/m²

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