Consider a long duct constructed with diffuse, gray walls 1 m wide (a) Determine the net radiation transfer from surface A 1 per unit length of the duct (b) Determine the temperature of the insulated surface A 3 (c) What effect would changing the value of 3 have on your result After considering your assumptions, comment on whether you expect your results to be exact Az Tz 700 K, z 0 5 A, Ty 1000 K, 0 33 A3 Ty , Ez 0 8

Question: Consider a long duct constructed with diffuse, gray walls 1 m wide (a) Determine the net radiation transfer from surface A 1 per unit length

Consider a long duct constructed with diffuse, gray walls 1 m wide

(a) Determine the net radiation transfer from surface A₁ per unit length of the duct.

(b) Determine the temperature of the insulated surface A₃.

(c) What effect would changing the value of ε₃ have on your result? After considering your assumptions, comment on whether you expect your results to be exact.

- Az. Tz = 700 K, €z - 0.5 A,. Ty = 1000 K, ɛ; = 0.33 A3. Ty , Ez = 0.8

- Az. Tz = 700 K, z - 0.5 A,. Ty = 1000 K, ; = 0.33 A3. Ty , Ez = 0.8

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