Heat Transfer Enhancement Comparisons in Different Tube Shapes

摘要: The importance of heat transfer enhancement in industrial applications has led to several studies on how reduce the size and cost exchangers as well other transport devices. Corrugations helped increase rates achieve certain limits for a specific need or application. Therefore, this study, passive technique three different spiral corrugation shapes was employed, pressure drop problem simulated by Computational Fluid Dynamics at Reynolds Number range 100-1300. Water used working fluid, tubes with profile were numerically, finally, results compared those standard smooth tube. indicated that whole geometries have good rate performance, especially curvy corrugation, which best thermal performance among others 2.5-0.6 are about 2.3-0.39 2.15-0.27 respectively. Furthermore, it less 51.3% 38.1%. It also concluded major influential reason get better is shape profile, as, these characteristics affects drop.