Improving shell and tube heat exchanger thermohydraulic performance using combined baffle

Abstract

<jats:sec> <jats:title content-type="abstract-subheading">Purpose</jats:title> <jats:p>This paper aims to investigate the fluid flow and heat transfer of a laboratory shell and tube heat exchanger that are analyzed using computational fluid dynamic approach by SOLIDWORKS flow simulation (ver. 2015) software.</jats:p> </jats:sec> <jats:sec> <jats:title content-type="abstract-subheading">Design/methodology/approach</jats:title> <jats:p>In this study, several types of baffle including segmental baffle, butterfly baffle, helical baffle, combined helical-segmental baffle, combined helical-disk baffle and combined helical-butterfly baffle are examined. Two important parameters as the heat transfer and pressure drop are evaluated and analyzed. Based on obtained results, segmental baffle has the highest amount of heat transfer and pressure drop. To assess the integrative performance, performance coefficient defines as “Q/<jats:italic>Δp</jats:italic>” is used.</jats:p> </jats:sec> <jats:sec> <jats:title content-type="abstract-subheading">Findings</jats:title> <jats:p>This investigation showed that among the presented baffle types, the heat exchangers equipped with disk baffle has the highest heat transfer. In addition, in the same mass flow rate, the performance coefficient of the shell and tube heat exchanger equipped with helical-butterfly baffle is the highest among the proposed models.</jats:p> </jats:sec> <jats:sec> <jats:title content-type="abstract-subheading">Originality/value</jats:title> <jats:p>After combined helical-butterfly baffle the butterfly baffle, disk baffle, helical-segmental baffle and helical-disk baffle show their superiority of 35.12, 25, 22 and 12 per cent rather than the common segmental baffle, respectively. Furthermore, except for the combined helical-disk baffle, the other type of combined baffle have better performance compare to the basic configuration (butterfly and segmental baffle).</jats:p> </jats:sec>

Evaluación térmico-hidráulica de un intercambiador de calor de tubo y coraza para el calentamiento de acetona

“…Asimismo, (Sujono et al, 2020) determinaron el rendimiento de un intercambiador de calor de tubo y coraza en términos de su comportamiento térmico e hidráulico, empleando para ello la función Solver del paquete de Microsoft Office. Por último, (Arani & Uosofvand, 2020) investigaron el flujo de fluido y la transferencia de calor de un intercambiador de calor de tubo y coraza a escala de laboratorio, el cual es analizado mediante el método de dinámica computacional de fluido involucrado en el software SOLIDWORKS. En este estudio se evaluaron seis tipos diferentes de deflectores, encontrando que el intercambiador equipado con el deflector de disco presentó la mayor transferencia de calor, mientras que aquel equipado con deflectores combinados del tipo helicoidal-mariposa tuvo el mejor coeficiente de rendimiento.…”