Reference product: sawnwood, board, hardwood, dried (u=20%), planed [m3]
Location: CA-QC - Canada, Québec
This dataset represents the planing of one m3 hardwood board that has been air dried or kiln dried to 20% moisture content. The ratio of kiln dried to air dried raw board input corresponds to the extimated market mix. The planing mill is assumed to be located on the sawmill site. The suction of the shavings is modeled in a separate activity.
The data was provided by and approved by the Swiss forest industry (Holzindustrie Schweiz HIS).
Within ecoinvent, three products - boards, beams and laths - are distinguished:
[To see the image, please follow the link https://db3.ecoinvent.org/images/4a091018-9ab3-44ac-bff8-33b1952185da]
After being sawn, the resulting products can either be air dried down to a moisture content of u=20% (mass of water per dry mass), kiln dried down to u=20% or kiln dried down to u=10%. The resulting products can then be planed (the ratio of planed products at a moisture content of u=20% reflects the market share of air dried and kiln dried unplaned products). The activity name indicates the respective product and moisture content of the product being planed.
The exchanges of this child dataset are identical to the GLO dataset. This dataset was created to enable linking to regional markets (e.g. for electricity). Data quality indicators were adjusted accordingly.
[This dataset has been generated using the system model "Allocation, cut-off by classification". A system model describes how activity datasets are linked to form product systems. The allocation cut-off system model subdivides multi-product activities by allocation, based on a physical properties, economic, mass or other properties. By-products of waste treatment processes are cut-off, as are all by-products classified as recyclable. Markets in this model include all activities in proportion to their current production volume.
Version 3 of the ecoinvent database offers three system models to choose from. For more information, please visit: https://www.ecoinvent.org/database/system-models-in-ecoinvent-3/system-…)]