Abstract:
The performance of fin is of major concern for heat transfer applications. The present study dealt with
experimental investigations of the thermal performance for perforated pin fin arrays. The fins are perforated with
circular and hexagonal fins along flow direction. Forced convection heat transfer at Reynold number range between
1-3.5 x 104 have been investigated. The perforated pin fin arrays were tested against a base case of solid pin fin
array of the same fin dimension. The pin fin arrays with hexagonal perforations exhibited the best performance with
enhanced convective heat transfer coefficient, fin effectiveness, and fin efficiency. Thermal resistance decreased in
hexagonal perforation than circular perforation and solid fins.
