Two aligned parallel square plates 0.6 m by 0.6 m are separated by L=0.3 m as illustrated in accompanying figure. Plate 1 is maintained at T;= 1000 K and it is assumed to be a blackbody. Plate 2 is maintained at T2=500 K and has an emissivity ɛ2 = 0.5. The plates are exposed through the opening between them into an ambient which can be regarded as a blackbody medium at T=300 K. (a)- Using appropriate graphs, tables, and governing laws, determine view factors F12, F13 and F23. (b)- Sketch the radiation network for the two surfaces and ambient. (c)- Calculate the radiosity (J) for surface 2.

Two aligned parallel square plates 0.6 m by 0.6 m are separated by L=0.3 m as illustrated in accompanying figure. Plate 1 is maintained at T;= 1000 K and it is assumed to be a blackbody. Plate 2 is maintained at T2=500 K and has an emissivity ɛ2 = 0.5. The plates are exposed through the opening between them into an ambient which can be regarded as a blackbody medium at T=300 K. (a)- Using appropriate graphs, tables, and governing laws, determine view factors F12, F13 and F23. (b)- Sketch the radiation network for the two surfaces and ambient. (c)- Calculate the radiosity (J) for surface 2.

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 11.38P

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