Then , Siew Ping and Panau , Freddie and Samyudia, Yudi
(2014)
CFD Simulation on Supercritical Fluid Extraction of Black Pepper's Bioactive Compounds: Single Particle Study.
Journal of Engineering Science and Technology, 10.
pp. 107-116.
ISSN 1823-4690
Abstract
To gain a better understanding on the application of computational fluid
dynamics (CFD) towards extraction using supercritical fluid, a single particle study was
carried out. The flow behaviour of an ambient supercritical carbon dioxide flowing
through a heated black pepper particle in vertical direction was studied. The transfer of
heat from the heated particle to supercritical fluid was examined. Various groups of
parameters in the following ranges were carried out for the simulations: pressure 3000
psi, 4000 psi and 5000 psi; temperature 4°C, 50°C and 55°C; and solvent flow rate 5 ml
min–1, 7.5 ml min–1 and 10 ml min–1. The contour of velocity magnitude and streamline of
the flow along the particle were presented. Temperature profile and the local heat flux
value on the heated particle surface were captured. The drag coefficients and average
Nusselt numbers obtained from the simulations had shown a good agreement with the
numerical correlations from literature.
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