TITLE:
Numerical Simulation of the Shell-and-Tube Heat Exchanger: Influence of the Lower Flows and the Baffles on a Fluid Dynamics
AUTHORS:
Sebastião José dos Santos Filho, Josedite Saraiva de Souza, Antonio Gilson Barbosa de Lima
KEYWORDS:
Heat Exchanger, CFD, Baffles, ANSYS, CFX
JOURNAL NAME:
Advances in Chemical Engineering and Science,
Vol.7 No.4,
August
25,
2017
ABSTRACT: This project proposes the numerical reproduction development of the water
flow in a shell-and-tube heat exchanger 2:1 according to the CLASS C TEMA
standard (for moderate operation conditions, with commercial application).
With baffles in aluminum and copper tube for the cold fluid flow, the shell is
in acrylic, and with thermal analysis efficiencies with regard to the presence or
not of the baffles, that is to analyze the efficiency with only, the tubes and the
shell and soon after the analysis with tubes and baffles. Heat exchangers are
widely used equipment on an industrial and commercial scale, the application
of these equipments on an industrial scale represents innovative processing
solutions reflecting the processes efficiency, producing significant savings and
lower cost, supporting the business success, and consequently offering opportunities,
social responsibility, which are the pillars of sustainability. For the
development of this work the methodology was used to calculate effectiveness,
following the design parameters and contour conditions, it was analyzed the
fluids behavior in the shell and the tube, through computational fluid dynamics
(CFD) using the software ANSYS CFX 15.0. The results were compared with
Excel generated worksheets calculated using the existing equations and correlations.