TY - JOUR
TI - Optimal spacings for channels with Hagen-Poiseuille fluid-flow and mass transfer - the role of the Bejan number
AU - Zimparov Ventsislav D
AU - Petkov Valentin M
AU - Hristov Hristo N
JN - Thermal Science
PY - 2021
VL - 25
IS - 102
SP - 295
EP - 301
PT - Article
AB - This work is a continuation of the recent studies [1, 2], revealing that the unique form of the Bejan number is robust (unchangeable) and appears independently in all Hagen-Poiseuille fluid-flows with heat or mass transfer by convection. The other dimensionless groups, derived from the First law of thermodynamics (related to the convection heat or mass transfer), and named Bejan numbers are combinations of the unique Bejan number with Prandtl or Schmidt numbers, respectively, and ratios of geometrical parameters of the system. In this paper we continue developing this idea through presenting new examples of problems in the field of convection mass transfer in pure laminar duct flows.