Review Paper on Performance of Pin Fin with S...

Review Paper on Performance of Pin Fin with Square Threaded and Twisted Geometry for Heat Transfer Enhancement

Author Name : Syed Rahmat Ali Osmani, Shaikh Zubair

DOI: https://doi.org/10.56025/IJARESM.2023.1172953

ABSTRACT

This review paper gives a detailed idea about the heat transfer enhancement of pin fins with different geometries under various inline and staggered arrangement. The different geometry with proposed modified design of square threaded and helically grooved geometry are also mentioned with conventional cylindrical pin fin geometry. This paper also defines the CFD simulation study to investigates the influence of body geometry on heat dissipation rate and pressure drop across the rectangular tunnel. All available pin fin geometries are compared to the corresponding solid fins in terms of heat transfer rate and also comparing will be between all different geometries of fins. However, the present study investigates three different shapes circular, square threaded, and helically twisted), at different Reynolds number varying from 13500 to 42000. The parameter for study was, Clearance ratio (C/H)=1 and (Sy/D)= 3.412 inter pin fin distance. Reynolds number is chosen based on the work in Performance analysis of a heat exchanger having perforated square fins. The pin fin hydraulic diameter (Dh) is chosen based on the work by Wang. The objective of this study is to provide usable data to compare heat transfer enhancement characteristics of various shaped pin fins with constant heat flux. Once an optimum shape of the pin fins is chosen, the flow velocity is varied without changing any other parameters. This arrangement results in a variation in Nusselt number and friction factor while keeping the pin fin height and (Sy/D) ratio constant.

Keywords: CFD, Geometry, Heat Transfer, Pin fin, Pressure drop.