Two parallel square plates having 5 mm separation with each plate having 2 m² area. One of the plates has a surface temperature of 800 K and surface emissivity of 0.6, while the other has a temperature of 300 K and surface emissivity of 0.9. Find the net energy exchange by radiations between the plates

Two parallel square plates having 5 mm separation with each plate having 2 m² area. One of the plates has a surface temperature of 800 K and surface emissivity of 0.6, while the other has a temperature of 300 K and surface emissivity of 0.9. Find the net energy exchange by radiations between the plates

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.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.61P

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H4. Solar flux = 900 [w/m^2] h_air from glass cover = 25 [w/m^2-k] Emissivity_glass = 0.88 (nearly opaque to low frequency radiation Transmissivity of glass = 0.95 Alpha to incoming radiaiton = 0.9 T_ambient = 17 C Gap between plates = 25mm Bottom plate is insulated. Hr = radiation heat Hc = convective heat might need to use view factor FIND TEMPERATURE OF TOP SURFACE (the top is the glass) If anything is needed let me know i will try my best to update the question