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Significant amounts of birch pulpwood from the North-West Federal District to Finland and Sweden are delivered by vessels. Interest in the mass transfer coefficients of birch pulpwood to volume is caused by the need to predict the results of determining the volume of the consignment for its acceptance abroad by gravimetric method at the time when shipping this consignment by geometric method. The subject of the study was the mass transfer coefficients to the volume of birch pulpwood obtained at acceptance ship consignments in Finland and Sweden by the gravimetric method of supply for the period from 2005 to 2010. Based on the results of the research, the values of the coefficients of shipload mass/volume and volume/weight are determined by months of supply from May to November. These findings are recommended to forest industry companies of the North-West Federal District to provide operational control and management of export supplies of birch pulpwood in Finland and Sweden.

Birch Pulpwood Mass-Volume Conversion Factors for Exports from the Northwest Russia