Two surfaces make up an enclosure where surface 1 is flat and has area A1, temperature T1 and emissivity 1. Surface 2 is black and has temperature T2. Show that the net power transfer rate (net heat flux) in W/m2 at surface 1 is given by

Two surfaces make up an enclosure where surface 1 is flat and has area A1, temperature T1 and emissivity 1. Surface 2 is black and has temperature T2. Show that the net power transfer rate (net heat flux) in W/m2 at surface 1 is given by

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter11: Heat Transfer By Radiation

Section: Chapter Questions

Problem 11.52P

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Question

Two surfaces make up an enclosure where surface 1 is flat and has area A1,
temperature T1 and emissivity 1. Surface 2 is black and has temperature T2. Show
that the net power transfer rate (net heat flux) in W/m2
at surface 1 is given by

temperature 11 and emissivity &. Surfac
that the net power transfer rate (net heat
ε₁σ(T^ — T^)
(1 4

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