Home About Browse Search
Svenska


Cano, Víctor Fernández , 2009. Determination of moisture content in pine wood chips with dual energy x-ray absorptiometry . First cycle, G2E. Uppsala: SLU, Dept. of Forest Products

[img]
Preview
PDF
1MB

Abstract

Determination of moisture content (mc) in pine wood chips is of interest to the pulp and paper industry. The gravimetric method used nowadays is reliable, but it is slow and labours. The aim of this paper was to evaluate the accuracy and precision when determining mc in pine wood chips with dual energy x-ray absorptiometry. Also to see if the same algorithm could be used for both spruce and pine chips. This new method was evaluated and compared with the results achieved with the gravimetric method that was used as a reference. In this study 70 samples of pine wood chips ranging different mc were used. Mc was determined by both methods and results were analysed by regression analysis. This study showed positive results; standard error of estimate was 2.01%, standard deviation was 0.45%, and R2 value was 98%. These results were similar to an earlier study conducted with spruce wood chips. However the correlation between both methods lacked of accuracy when the mc was low. These results showed that it is needed to use a separate algorithm for pine wood chips.

Main title:Determination of moisture content in pine wood chips with dual energy x-ray absorptiometry
Authors:Cano, Víctor Fernández
Supervisor:Hultnäs, Mikael
Examiner:Nylinder, Mats
Series:Bachelor thesis (SLU, Department of forest products)
Volume/Sequential designation:43
Year of Publication:2009
Level and depth descriptor:First cycle, G2E
Student's programme affiliation:Other
Department:(S) > Dept. of Forest Products
Keywords:moisture content, dual energy x-ray absorptiometry, pine wood chips
URN:NBN:urn:nbn:se:slu:epsilon-2-100
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-2-100
Subjects:Processing of forest products
Language:English
Deposited On:14 Sep 2009 07:20
Metadata Last Modified:20 Apr 2012 14:09

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits