Trumpos rotacijos energetinių augalų fizikinių-mechaninių savybių tyrimas

Abstract

The plant biomass (wood, straw, energy crops) is one of the most important renewable energy sources in Lithuania and Europe. As renewable energy sources can be grown in short rotation e-nergy crops - willows and black poplars. When geometric indicators, it can be said that the willows thicker the more the fruits dry weight equal to 895,67±11,5 kg m-3. Similar results is of black pop-lar - 879,05 ± 20,93 kg m-3. Cutting the stems with screw cutter found that the largest chopped fraction accumulates on the screen when the screen hole diameter of 8 and 16 years old. The lar-gest fraction of the set when the willow stems are thicker Gl.1 - GL.2 75.77 % and 62.18 %. The evaluation of poplar, the largest fractional composition determined when the stems are thinner at the screen hole diameter of 8 mm fraction is equal to 66.72 % and 71.76 %.