Q1) A polished metal pipe (8 cm) owtside diameter and 350 K temperature at the outer surface is exposed to ambient conditions at 285 K temperature. The emissivity of the surface is 0.3 and the convection coefficient of heat transfer is 13.5 Wim2-deg. What would be the overall coefficient of heat transfer by the combined mode of convection and radiation” Q2 find the pressure point (1) if the amospheric pressure is(70kpajihl =0 2,h2=0.4,h3=0. ‘)(p. =13600kg/m3. poil=850kg/m3) Q1) A polished metal pipe (8 cm) outside diameter and 350 K temperature at the outersurface is exposed to ambient conditions at 285 K temperature. The emissivity of thesurface is 0.3 and the convection coefficient of heat transfer is 13.5 Wim2-deg.What would be the overall coefficient of heat transfer by the combined mode of convectionand radiation?if the atmospheric pressureQ2) find the pressure at point (1)is(70kpa)(hl-0.2.h2-0.4.h3-D0.6)(phe-13600kg/m3.poil-850kg/m3)

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Q1) A polished metal pipe (8 cm) outside diameter and 350 K temperature at the outer surface is exposed to ambient conditions at 285 K temperature. The emissivity of the surface is 0.3 and the convection coefficient of heat transfer is 13.5 Wim2-deg. What would be the overall coefficient of heat transfer by the combined mode of convection and radiation?

Q1) A polished metal pipe (8 cm) outside diameter and 350 K temperature at the outer surface is exposed to ambient conditions at 285 K temperature. The emissivity of the surface is 0.3 and the convection coefficient of heat transfer is 13.5 Wim2-deg. What would be the overall coefficient of heat transfer by the combined mode of convection and radiation?

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.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.9P

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