Q2: A long 25 cm diameter cylindrical shaft made of stainless steel 304 comes out of an oven at a uniform temperature of 500 •C. The shaft is then allowed to cool slowly in an environment chamber at 180 •C with an average heat transfer coefficient of h=90 W/m2. °C. Determine the temperature at the center of the shaft 40 min after the start of the cooling process. Also, determine the heat transfer per unit length of the shaft during this time period. Taking p=7900 kg/m3, *.Cp=477 J/kg. •C, k= 14.9

Q2: A long 25 cm diameter cylindrical shaft made of stainless steel 304 comes out of an oven at a uniform temperature of 500 •C. The shaft is then allowed to cool slowly in an environment chamber at 180 •C with an average heat transfer coefficient of h=90 W/m2. °C. Determine the temperature at the center of the shaft 40 min after the start of the cooling process. Also, determine the heat transfer per unit length of the shaft during this time period. Taking p=7900 kg/m3, *.Cp=477 J/kg. •C, k= 14.9

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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