Enhancement of natural convection heat transfer from a pin fin

In this investigation, the enhancement of natural convection heat transfer from a pin fin of length 145 mm and diameter of 19.875 mm is examined. An experimental set up has been prepared and experiments were carried out for ten different materials in natural convection mode. Then the same 10 materials were analyzed under the same heat loss conditions with black coat and then a comparative study was made between the coated fin and the uncoated fin. The comparison shows that there is a significant improvement in heat loss characteristics of pin fin made up of materials E8 E9 with black coat.