for heat transfer and cooling purposes a chemical engineering have bee
For heat transfer and cooling purposes, a chemical engineering have been consulted to give
and advise on fins uses (made of aluminum; k=240 W/m.K) and either select;
1- Rectangular fin with a dimension of 4 cm, 0.5 cm thickness and a length of 3cm
2- For cylindrical fins a radius of 0.25 cm and separation distance of 0.7 cm between
fins. The main purpose of using 4 cylindrical finds is to consume less materials.
Knowing that heat transfer coefficient is determined to be 40 W/m².K, base temperature is
100°C and the ambient is at 25°C. Which of the two cases, should the engineer consider
as best design?
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