An electrical horizontal wire is having diameter (2 cm) and unit length. The wire is placed in room air at 10°C with heat loss (105 W) by free convection. Estimate the surface temperature for Ra=3.08 ×10. Take k = 0.02685 W/m.K Geometry Grf Prf C m Reference(s) Horizontal cylinders 0-10-5 0.4 0 10-5-104 Use Fig. 7-6 Use Fig. 7-6 4 104-109 0.53 10⁹-1012 0.13 10-10-10-2 0.675 0.058 10-2-102 1.02 0.148 10²-104 0.850 0.188 104-107 0.480 107-1012 0.125 1711 } 4 4 76t 76† 76 76 76

An electrical horizontal wire is having diameter (2 cm) and unit length. The wire is placed in room air at 10°C with heat loss (105 W) by free convection. Estimate the surface temperature for Ra=3.08 ×10. Take k = 0.02685 W/m.K Geometry Grf Prf C m Reference(s) Horizontal cylinders 0-10-5 0.4 0 10-5-104 Use Fig. 7-6 Use Fig. 7-6 4 104-109 0.53 10⁹-1012 0.13 10-10-10-2 0.675 0.058 10-2-102 1.02 0.148 10²-104 0.850 0.188 104-107 0.480 107-1012 0.125 1711 } 4 4 76t 76† 76 76 76

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.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.22P

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