Fig. 3 | Scientific Reports

Fig. 3

From: Mechanical thermal and emission assessment of olive pruning residues for sustainable biofuel production

Fig. 3

Schematic of the setup used for measuring the internal friction coefficient of ground olive residues; (A) Assembled double-ring shear cell; (B) Individual components of the shear cell: (1) A pulling mechanism applying horizontal force via a wire connected to a digital force gauge, ‎(2) An upper cylinder open at both ends, ‎‎(3) Calibrated weights to apply normal force, ‎(4) A cylindrical container holding the sample, and‎ (5) A lower cylinder closed at one end.

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