DESIGN AND PERFORMANCE EVALUATION OF STEPPED THREADED PIN FIN AND COMPARISON WITH NON THREADED STEPPED PIN FIN

In this project experimental investigation of stepped threaded pin fin heat transfer has been done using the materials brass. Out of these two, one is stepped threaded and other is stepped pin fin. The objective of this project is to determine the effectiveness and efficiency of stepped threaded pin fin and its comparison with fin like cylindrical experimentally. Also a detailed comparison of how much heat transfer takes places. On comparing it is found that the surface area of threaded pin fin is increased by 5.8 % from without threaded pin fin. Temperature drop in stepped threaded fin is more than stepped fin. From calculation experimental efficiency is more in case of stepped threaded compare to smooth fin