Issue №3, Vol. 23VASILEV S., Dospekhova N., Rakovskaya M., Simonova I., Kolesnikov G., Kunitskaya O. Influence of cutting speed and pulpwood temperature on the fractional composition of wood chips // Resources and Technology. 2026. №3, Vol. 23. P. 94‒117.
DOI: 10.15393/j2.art.2026.9963
Influence of cutting speed and pulpwood temperature on the fractional composition of wood chips
VASILEV
SERGEI | PetrSU, servas@psu.karelia.ru |
Dospekhova
Nanalia | Petrozavodsk State University, dospeh@petrsu.ru |
Rakovskaya
Marina | Petrozavodsk State University, MRakovskaya@petrsu.ru |
Simonova
Irina | Petrozavodsk State University, shaina_irina@mail.ru |
Kolesnikov
Gennady | Petrozavodsk State University, kgn@petrsu.ru |
Kunitskaya
Olga | Arctic State Agrotechnological University, ola.ola07@mail.ru |
Key words:
wood chipping; chipping machines; temperature; cutting speed; particle size distribution |
Summary: The production of chips from frozen wood at pulp and paper mills in winter is accompanied by a deterioration in its particle size distribution and increased losses of wood raw materials. This paper presents the results of a study examining the effect of temperature of wood crushed by a disc chipper on the particle size distribution of the resulting chips. The study included experiments on crushing spruce and larch pulpwood using a specially designed chipper with an adjustable blade disc speed at temperatures of +10 °C and –12 °C. The results of the experiment revealed a tendency toward a decrease in the proportion of large fractions and an increase in the proportion of small particles with increasing cutting speed. Furthermore, it was found that a decrease in the length of the pulpwood crushed in the chipper caused an increase in the proportion of large chips. The results of the experiments showed that the patterns of influence of temperature and cutting speed on the particle size distribution of chips during the crushing of spruce and larch pulpwood were similar. For both species, an increase in the proportion of small fractions in the chips was recorded with a decrease in temperature.
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