About the article
А.L. YABLONEV, Dr. Sc., D.M. SCHERBAKOVA, Postgraduate
The suction efficiency of milling particles by pneumatic peat harvesters is largely determined by the air flow rate created by the pneumatic system. Attempts to analytically determine this speed were made by a number of scientists not only for peat, but also in related industries ‒ in the dedusting and pneumatic transport of sawdust. However, due to the specifics of peat milling chips, the topic is raised again. In the course of the study, it was found that the separation of a peat particle from the underlying surface is not affected by the Magnus force, but by the lifting force caused by the pressure difference above and below the particle. Mathematical models have been developed that make it possible to calculate the minimum air flow speed required to move a peat particle from its place and detach it from the underlying surface.
peat, pneumatic peat harvester, suction nozzle, air speed, drag force, lifting force, Magnus force, Bernoulli equation