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Aluminum fins of triangular profile are attached to a plane wall whose surface temperature is 100°C....

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Mechanical Engineering

Aluminum fins of triangular profile are attached to a plane wallwhose surface temperature is 100°C. The fin base thickness is 2.0mm, and its length is 10 mm. The system is in ambient air at atemperature of 20°C, and the surface convection coefficient is 40W/m2·K. (a) What are the fin efficiency and effectiveness? (b) Whatis the heat dissipated per unit width by a single fin?

(a)nf=

ef=

(b)q'f=

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