MECHANICAL PROPERTIES OF BIOMASS PELLETS

The paper dealt with the determination of mechanical properties of the cylinder pellet samples. Wheat straw, rapeseed straw and 50/50% mixed wheat and rapeseed straw were used for study of compress loading. The pellets were made by the granulating machine MGL 200 (Kovonovak). The compressive loading curves of dependencies of stress on strain were realised by the equipment Andilog Stentor 1000 (Andilog Technologies, Vitrolles, France). Initial force, initial stress, strain in maximum of loading curve, stress in maximum of loading curve and modulus of elasticity were determined. Significant correlations of the mechanical parameters pellet samples were observed among initial force and initial stress and modulus of elasticity. Significant correlations of force in maximum with stress and strain in the maximum were observed.