Q11/ To heat treat alloy rods, these are placed in a gas stream at 800°C with a convective heat transfer coefficient of 120 W/m2K. The rod is of 19 mm radius and is at 30°C to start with. Determine the time required for the rod center line to reach 610°C. Density 7978 kg/m2. Specific heat = 0.585 kJ/kg.K, thermal conductivity 21.9 W/m.K. Also determine at this time surface and mid radius temperatures and the heat flow. Answer: 569.3 s, 619.5°C, 613.8°C, 3.06 x 10 J/m length

Q11/ To heat treat alloy rods, these are placed in a gas stream at 800°C with a convective heat transfer coefficient of 120 W/m2K. The rod is of 19 mm radius and is at 30°C to start with. Determine the time required for the rod center line to reach 610°C. Density 7978 kg/m2. Specific heat = 0.585 kJ/kg.K, thermal conductivity 21.9 W/m.K. Also determine at this time surface and mid radius temperatures and the heat flow. Answer: 569.3 s, 619.5°C, 613.8°C, 3.06 x 10 J/m length

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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