Consider two infinitely long thin concentric tubes of circular cross section as shown in figure. If D, and circular cross section as shown in figure. If D. and D, are the diameters of the inner and outer tubes respectively, then the view factor F, is given by 22

Consider two infinitely long thin concentric tubes of circular cross section as shown in figure. If D, and circular cross section as shown in figure. If D. and D, are the diameters of the inner and outer tubes respectively, then the view factor F, is given by 22

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 11.41P: 11.41 Determine the steady-state temperatures of two radiation shields placed in the evacuated space...

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Which one is correct answer it fast urgent

Consider two infinitely long thin concentric tubes of
circular cross section as shown in figure. If D, and
circular cross section as shown in figure, If D an
and
D, are the diameters of the inner and outer tubes
respectively, then the view factor F, is given hu
22
D2
-1
(a)
(b) Zero
D.
(c)
D2
2
(d) 1-
D2

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