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Unformatted text preview: 0 W/(m2K). The contact resistance between the cylinder surfaces
and the heater is negligible. Determine the electrical power per unit length of the cylinder
(W/m) to maintain the outer surface of the cylinder B at 5 C. (T∞=-15°C, h1=50 W/(m2 K)), (ka=.15 W/(m K), Ra =20mm),
(kb= 1.5 W/(m K), Rb =40mm), To= 5°C
Find: q’ for the heater to maintain TO= 5°C
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This document was uploaded on 01/15/2014.
- Fall '13