Reference product: heat, central or small-scale, other than natural gas [MJ]
Location: RoW - Rest-of-World
This activity represents heat production from combustion of wood logs in Switzerland in a new (=installed in 2014) furnace and is used for the global activity as first approximation (uncertainty factors adjusted accordingly). Wood log LHV=9430 MJ/m3. It is supposed to be representative for average new installations. The inventory shall be considered valid for wood log boilers with nominal capacities in the range of 15-50 kW.
Some emission data are from the late 1990's; key emission parameters (CO, PM, NOx, CH4, NMVOC) have been updated according to latest available data. The activity represents average annual operation including start-stop and part-load operation, which results in a reduced efficiency and increasing emissions compared to manufacturer information.
[The full documentation of this dataset was originally provided in the corresponding ecoinvent report from the Swiss Centre for Life Cycle Inventories, which is accessible for free to guests and users of ecoinvent version 2 (https://www.ecoinvent.org/login-databases.html). The dataset may subsequently have been subjected to central changes to the database, as described in the respective change report for each new release.]
[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-…)]