It is proposed to air-cool the cylinders of a combustion chamber by joining an aluminum casing with annu- lar fins (k = 240 W/m•K) to the cylinder wall (k = q," = 105 W/m². Assuming negligible contact resistance between the wall and the casing, determine the wall inner temperature T; and the base temperature Tp. Determine these temperatures if the interface contact resistance is 50 W/m·K). Cylinder wall Aluminum casing R", = 10-4 m².K/W. tc T T, t = 2 mm 8 = 2 mm 11 r; = 60 mm T, h r = 66 mm r2 = 70 mm = 95 mm The air is at 320 K and the corresponding convection coefficient is 100 W/m² ·K. Although heating at the inner surface is periodic, it is reasonable to assume steady-state conditions with a time-averaged heat flux of

It is proposed to air-cool the cylinders of a combustion chamber by joining an aluminum casing with annu- lar fins (k = 240 W/m•K) to the cylinder wall (k = q," = 105 W/m². Assuming negligible contact resistance between the wall and the casing, determine the wall inner temperature T; and the base temperature Tp. Determine these temperatures if the interface contact resistance is 50 W/m·K). Cylinder wall Aluminum casing R", = 10-4 m².K/W. tc T T, t = 2 mm 8 = 2 mm 11 r; = 60 mm T, h r = 66 mm r2 = 70 mm = 95 mm The air is at 320 K and the corresponding convection coefficient is 100 W/m² ·K. Although heating at the inner surface is periodic, it is reasonable to assume steady-state conditions with a time-averaged heat flux of

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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