Question

In: Mechanical Engineering

Steam in a heating system flows through tube whose outer diameter is 10 cm and whose...

Steam in a heating system flows through tube whose outer diameter is 10 cm and whose walls are
maintained at a temperature of 150°C. Circular aluminum alloy 2024-T6 fins (k = 186 W/m · °C)
of outer diameter 15 cm and constant thickness 2 mm are attached to the tube. Heat is transferred
to the surrounding air at T∞ = 25°C, with a heat transfer coefficient of 50 W/m2 C . If the total

tube length is 5 m and spacing between fins is 6 mm then determine:
a. The total number of fins to be installed on tube
b. The increase in heat transfer rate as a result of adding fins
c. Overall effectiveness of the fined surface

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Expert Solution

Please refer the following images for the solution.

samet mamat answered 2 years ago
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