An electrical horizontal wire is having diameter (2 cm) and unit length. The wire is placed inroom air at 10-C with heat loss (105 W) by free convection. Estimate the surface temperature forRa = 3.08 ×10.Take k = 0.02685 W/m.KGeometryGrf PrfCReference(s)Horizontal cylinders0410-5-104Use Fig. 7-64104-109410⁹-1012410-10-10-20.05876t10-2-10²20.1487610²-1040.188104-107107-10120-10-50.4Use Fig. 7-60.530.130.6751.020.8500.4800.125767676

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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 0.4 0 10-5-104 Use Fig. 7-6 Use Fig. 7-6 4 104-10⁹ 0.53 1 4 10⁹-1012 0.13 1 4 10-10-10-2 0.675 0.058 76t 10-2-10² 1.02 0.148 76t 10²-104 0.850 0.188 76 104-107 0.480 76 4 107-1012 0.125 3 76 0-10-5

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 0.4 0 10-5-104 Use Fig. 7-6 Use Fig. 7-6 4 104-10⁹ 0.53 1 4 10⁹-1012 0.13 1 4 10-10-10-2 0.675 0.058 76t 10-2-10² 1.02 0.148 76t 10²-104 0.850 0.188 76 104-107 0.480 76 4 107-1012 0.125 3 76 0-10-5

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.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.31P: A spherical communications satellite, 2 m in diameter, is placed in orbit around the earth. The...

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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 Use Fig. 7-6 Use Fig. 7-6 0.53 4 0.13 0.675 0.058 1.02 0.148 0.850 0.188 0.480 1 0.125 10-5-104 104-109 10⁹-1012 10-10-10-2 10-2-10² 10²-104 104-107 107-1012 1413 1 44 4 76t 76t 76 76 76
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