Double-pass shell-and-tube heat exchanger performance enhancement with new combined baffle and elliptical tube bundle arrangement

Numerical Simulation of the Heat Transfer Inside a Shell and Tube Heat Exchanger Considering Different Variations in the Geometric Parameters of the Design

“…As can be seen in studies such as those developed by Li et al [8] and Abbasian et al [10], the use of curvatures in the heat exchanger duct profiles generates an increase in heat flow. For this reason, as another alternative proposal to the circular profile in the outer zone, the behavior of the heat exchanger device was analyzed by incorporating profiles The analysis developed in the exchanger with horizontal elliptical profiles resulted in a higher heat flow in the device with inclined baffles and ends oriented towards the cold fluid outlet (Case B), compared to the baffles with alternating oriented ends (Case C), with a heat flow of 29.02 and 27.14 kW, respectively, as shown in Figure 14A.…”

“…As can be seen in studies such as those developed by Li et al [8] and Abbasian et al [10], the use of curvatures in the heat exchanger duct profiles generates an increase in heat flow. For this reason, as another alternative proposal to the circular profile in the outer zone, the behavior of the heat exchanger device was analyzed by incorporating profiles with four arches in the internal tubes in the outer part and circular inner profiles, as shown in Figure 15.…”

“…In this context, the study of improvements in the efficiency of heat exchange devices has been presented in research works such as the one developed by Abbasian and Uosofvand [10]. This work studies the variation in heat transfer between fluids by incorporating geometric modifications in the profile of the tube and baffle, using computational fluid dynamics (CFD) analysis, with an increase of 20.9% using an optimized tube with an elliptical angled arrangement.…”