Consider a thin circular disk that has been heated up to 400 °C and then left inside a chamber to cool down. The chamber surface

Question

4 years ago

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Consider a thin circular disk that has been heated up to 400 °C and then left inside a chamber to cool down. The chamber surface

is kept at 40 °C and the air inside is maintained at 25 °C. Assume that the disk is held at the center of the chamber, and we can ignore heat conduction effects in this problem. The disk surface property is known as ε=0.65. For the diameter of D=200 mm, what is the total rate of heat transferfrom the disk?

Physics

1 answer:

kogti [31] · Answer 1 · 2021-12-22T17:45:15+03:00

Answer:

hello your question lacks the required diagram attached below is the complete question with the required diagram

answer : Qtotal = 807.4 Mw

Explanation:

Given Data :

disk properties :

∈ = 0.65

D = 200 mm

Ts = 400⁰c

attached below is the detailed solution

The total rate of Heat transferred from the disk

Qtotal = 807.4 Mw