CFD Investigation of transfer of the heat and turbulent flow in circular copper tube with perforated conical rings of aluminum material

Abstract

Today industries, societies surrounded by hybrid devices like hybrid solar collector, hybrid micro solar collectors, CNC machines etc, and these devices requires effective heat relocation systems for boosting up the life span efficiency, effectiveness and reliability of such devices. Present work based on comparative and simulation study of thermal attributes and fluid flow attributes for conical perforated ring placed inside copper tune of heat exchanger. Experimentation carried out for acknowledging the effect of diverse Pitch Ratio having range 4, 6, 12 and number of holes range 2, 3, 4 with diverse range of Reynolds number (Re number) 4000, 8000, 12000, 16000, 20,000 on thermal attributes and fluid flow attributes for conical perforated rings placed inside copper tube. Results predicted that the copper tube with different conical perforated-rings have excellent results as compared to corresponding smooth tube. So, this research offers an improved conical perforated-rings design for internal fluid flow for enhancing the heat relocation rate. The highest values of Nusselt number (Nu number) is obtain at PR = 4, conical holes N = 2 for Re number Re = 20000.