Experimental Study of the Water Absorption Kinetics of the Coconut Shells Nucifera of CamerounReportar como inadecuado




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The study is focused on the phenomenon of diffusion of water through the shells of two coconut species coconut nucifera of Cameroun. The kinetics absorption of water was studied experimentally by the gravimetric method with discontinuous control of the mass of the samples at the temperature of 23℃. The mature coconut shells were cleaned mechanically, cut in a spherical shape and placed in a drying oven with 105℃ for 4 hours before being plunged in distilled water at 23℃. This study made it possible not only to determine the rate of water absorbed, but also to model the water kinetic absorption of the shells. Of the two models tested Peleg and Page, the Page model predicted very well the experimental data. The Fick law made it possible to evaluate the effective diffusivity coefficients at the initial and final phases of absorption. The effective diffusivity coefficient was given from the Arrhenius equation.

KEYWORDS

Coconut Shells CSs, Drying, Absorption, Coefficient of Effective Diffusivity, Activation Energy

Cite this paper

Ndapeu, D. , Njeugna, E. , Sikame, N. , Bistac, S. , Drean, J. and Fogue, M. 2016 Experimental Study of the Water Absorption Kinetics of the Coconut Shells Nucifera of Cameroun. Materials Sciences and Applications, 7, 159-170. doi: 10.4236-msa.2016.73016.





Autor: Dieunedort Ndapeu1, Ebénezer Njeugna2, Nicodème Rodrigue Sikame1, Sophie Brogly Bistac3, Jean Yves Drean4, Médard Fogue1

Fuente: http://www.scirp.org/



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