Maetning av Traeddelar vid Norrsundets Bruk-Relation Mellan Massavedsvolym ochLassvikt (Scaling of Tree Sections at Norrsundet's Mill: The Relationship between Pulpwood Volume and Truckload Weight)

摘要

The purpose of this study was to improve the scaling of coniferous undelimbedpulpwood tree sections. According to the present system, the pulpwood volume is calculated by multiplying the truckload weight by a conversion factor, which is based on the moisture content of the tree sections. This system has been criticized as being inexact. Determination of the pulpwood volume in the tree sections load can be done in the following three ways: measuring the height, width and length of the load and determining the percentage of the solid pulpwood volume; multiplying the weight of the truckload by a conversion factor (present method): for example the conversion factor depends on the moisture content in the tree sections; and calculating relationship between different properties of the truckload by using a regression model.