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A pin fin, fabricated from an aluminum alloy (k = 185 W/m K), has a diameter...

A pin fin, fabricated from an aluminum alloy (k = 185 W/m K), has a diameter of D = 3 mm and a length of L = 15 mm. Its base temperature is Tb = 100°C, and it is exposed to a fluid for which T∞ = 20°C and h = 50 W/m2 K.

  • Provide a sketch and state your assumptions (1 point)
  • Use Table 3.5 in the book (grading is based on the use of that particular table) to calculate the fin efficiency, ηf (1 point)
  • Use the efficiency to obtain the heat transfer rate, qf  (1 point)
Engineering   Mechanical-Engineering   
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