Evaluation of wood basic density as an indirect measurement of the volume of wood raw material

conferenceObject

Moura, S.
Abella, D.
Anjos, O.

ICWSE

MOURA, S. ; ABELLA, D. ; ANJOS, O. (2007) - Evaluation of wood basic density as an indirect measurement of the volume of wood raw material. In ICWSE 2007, Brasov, 20-22 June - Wood Science and Engineering in the Third Millennium : proceedings. [S.l. : s.n.]. p. 72-78.

Evaluation of wood basic density as an indirect measurement of the volume of wood raw material

Basic density
Moisture content
Wood volume
Wood agglomerate

2014-03-07T15:09:42Z
2014-03-07T15:09:42Z
2007

The manufacturing process of wood agglomerate integrates distinct unit that transforms wood raw material into wood agglomerate. The yield of wood agglomerate produced is influenced by the density and the quality of the initial raw material. This work has compared two distinct methodologies aimed at defining the yield of the process through an indirect measurement at the precursor material. Samples (logs of differentiated sizes) were collected immediately at the industry entrance and several parameters were measured. The logs basic density and the moisture content was annotated, through analysis of the corresponding dry and wet mass. Log bark percentage has estimated also at the level of dry and wet basis. These parameters were used to determine the wood volume from different provenance and species in the beginning of the industrial process. The results indicated that wasn’t a great difference between the two different methods to determine the wood basic density and the wood volume in m3. Principal components analysis was used to investigate the differences between different provenances and different species for the wood basic density, and we conclude there is a great variability in wood basic density for the hardwood species than the observed for the softwood and there isn’t a great variability between different provenances. We study too the difference off wood moisture that could be occurring before the evaluation of wood basic density.

openAccess

eng