University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal

Logo BOKU Resarch Portal

Gewählte Master / Diploma Thesis:

Ulrike-Maria Knaus (2019): Ressourceneffizienz in der Holzwirtschaft Analyse ausgewählter Prozessketten.
Master / Diploma Thesis - Institut für Holztechnologie und Nachwachsende Rohstoffe, BOKU-Universität für Bodenkultur, pp 58. UB BOKU obvsg FullText

Data Source: ZID Abstracts
Abstract:
In Austria, the wood industry is one of the largest employers. The boom in sustainability and sustainable resource utilization has also arrived in the wood industry. Individual substantial process chains were selected to investigate material efficiency. The selected processes were sawmill industry, the production of glued laminated timber, cross laminated timber, laminated veneer lumber, plywood, and the wood-aluminum window. As a working hypothesis, it was assumed that the mentioned process chains are currently not very resource-efficient and therefore there is a certain optimization potential with regard to resource efficiency. In order to be able to estimate the optimization potential, it was determined how much of the resource wood in the sense of "raw wood equivalent" is needed for the production of a final product. At the beginning of most processes in the wood industry is the sawmill industry, which has a yield of approximately 50%. The yield depends on a variety of factors, such as sawing technology, cutting variant, cutting pattern and wood species. In addition to the main and side products, the by-products (wood chips, sawdust, bark, peelers, residual roll ...) from the sawmill industry are further processed. In the production of glued laminated timber, raw material yields of 39% and in cross laminated timber of up to 40% are achieved. As in the sawing industry, the sawmill by-products can be further processed in the manufacture of lumber. However, the cut offs and cut outs of the glued panels are usually used for thermal recovery, since there are adhesives in these product residues. In the production of plywood and laminated veneer lumber, the highest resource yield of 71% is achieved. The lowest is the resource yield, with 20% in the production of wood-aluminum-windows. The potential to improve the individual processes with regard to the resource wood is given. However, the question is whether the processes are still economical for the industry.

Beurteilende(r): Teischinger Alfred

© BOKU Wien Imprint