ENHANCEMENT OF HEAT TRANSFER IN A U-LOOP CIRCULAR TUBE WITH AXIAL PERFORATED INSERTS

Abstract

In practical applications inserts of various geometrical shapes we used to enhance the heat transfer. So many experiments have been carried out for a circular tube using various types of inserts. In our investigation, we have used perforated axial inserts in the straight part of Uloop circular pipe. The non-isothermal laminar flow is considered as the physics for fluid flow inside the tube. A copper pipe with 3435.62mm long, 70mm diameter and 5mm thickness is taken for our simulation. Two 1600mmx70mmx2mm rectangular copper plates with perforated are used as inserts inside the tube fitted in perpendicular to the fluid flow. For our simulation, we have used a uniform heat-flux around the U-loop circular tube. The variations of temperature and pressure drops are examined for with inserts and without insert. Finally we compare the results for a without perforated insert tube. We found a significantdifference between both results where the perforated inserts enhanced theamount of heat transfer than the without perforated inserts for a fluidflow.