# 3-201 Steam in a heating system flows through tubes whose outer diameter is 3 cm and whose walls are maintained at a temperature of 120°C. Circular aluminum alloy fins (k = 180 W/m K) of outerdiameter 6 cm and constant thickness t = 2 mm are attached to the tube, as shown in Fig. P3-201. The space between the fins is 3 mm, and thus there are 200 fins per meter length of the tube. Heat istransferred to the surrounding air at 25°C, with a combined heat transfer coefficient of 60 W/m2-K. Determine the increase in heat transfer from the tube per meter of its lengthas a result of adding fins.page 245FIGURE P3-201r= 1.5 cm2-3 cmt=2 mmS 3 mm

Question
Step 1

Write all the given variables in the problem along with their proper notations.

Step 2

Write the expressions for corrected radius of the fin and simultaneously substitute the suitable values to obtain the same.

Step 3

Write the expression for the corrected length of the fin and simult...

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