Macroscopic Geometrical Modelling of Oil Palm Mesocarp Fibers of Three Varieties of Palm Nut

This work is part of a process of characterization of plant fibers. The macroscopic geometric parameter of Oil Palm Mesocarp Fibers (length, diameter) was measured. A mathematical model of the evolution of the cross-section is provided in order to facilitate a digital reconstruction of the geometry of these fibers. In this context, we manually isolated with great care many fibers of several oil palm varieties Dura, Tenera and Pissifera distinguishing for the last two varieties two extraction position. Five different partitions of fibers have been studied. The lengths of these fibers were measured and the transverse dimensions of each of the fibers were taken at five equally spaced discrete and different sections. For each section, we made two measurements at 90 ° in the front plane and the profile view. The mathematical model of the evolution of the profile were determined in each plan and the evolution of the cross section model was described for each of the five partitions on the basic assumption that this cross section is elliptical according to SEM images and flattening rate of the cross section we calculated.