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Rio, Jose C. / Laine, Christiane / Potthast, Antje / Takano, Toshiyuki / Theliander, Hans

Holzforschung

International Journal of the Biology, Chemistry, Physics, and Technology of Wood

Editor-in-Chief: Faix, Oskar

Editorial Board Member: Daniel, Geoffrey / Militz, Holger / Rosenau, Thomas / Salmen, Lennart / Sixta, Herbert / Vuorinen, Tapani / Argyropoulos, Dimitris S. / Balakshin, Yu / Barnett, J. R. / Burgert, Ingo / Evans, Robert / Evtuguin, Dmitry V. / Frazier, Charles E. / Fukushima, Kazuhiko / Gindl-Altmutter, Wolfgang / Glasser, W. G. / Holmbom, Bjarne / Isogai, Akira / Kadla, John F. / Koch, Gerald / Lachenal, Dominique / Mansfield, Shawn D. / Morrell, J.J. / Niemz, Peter / Ragauskas, Arthur J. / Ralph, John / Rice, Robert W. / Salin, Jarl-Gunnar / Schmitt, Uwe / Schultz, Tor P. / Sipilä, Jussi / Tamminen, Tarja / Welling, Johannes / Willför, Stefan / Yoshihara, Hiroshi


IMPACT FACTOR increased in 2015: 1.711
5-year IMPACT FACTOR: 1.794
Rank 3 out of 21 in category Materials Science, Paper & Wood and 14 out of 66 in Forestry in the 2015 Thomson Reuters Journal Citation Report/Science Edition

SCImago Journal Rank (SJR) 2015: 0.817
Source Normalized Impact per Paper (SNIP) 2015: 0.954
Impact per Publication (IPP) 2015: 1.427

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ISSN
1437-434X
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Exploratory evaluation of oscillation drying for thick hemlock timbers

E. K. Sackey / S. Avramidis / L.C. Oliveira

Citation Information: Holzforschung. Volume 58, Issue 4, Pages 428–433, ISSN (Print) 0018-3830, DOI: https://doi.org/10.1515/HF.2004.065, June 2005

Publication History

Published Online:
2005-06-01

Abstract

The study explores the effect of dry-bulb (Tdb) and wet-bulb (Twb) temperature oscillation in a conventional kiln on the drying characteristics of 105-mm-square Pacific coast hemlock. Five kiln-charges were dried using four oscillating drying schedules and a control. The base drying temperatures for the control were Twb=53°C, Tdb=60°C for the first drying phase and increased to Twb=65°C, Tdb=80°C in the second phase. These temperatures were oscillated at two amplitude and frequency combinations, namely, 3°C for 4 h (low) and 6°C for 8 h (high). The results indicated that the total impact of oscillating schedules on the drying rate was more pronounced at the early stages of the drying process. Oscillating Tdb at higher amplitudes increased drying rate by 12%, whereas the low amplitude counterpart reduced kiln residence time by 10–14%. The final moisture content variability decreased in both Twb oscillated schedules. Core and shell moisture content variation also slightly decreased in the low amplitude Twb oscillated schedules. High amplitude oscillated Tdb also showed 5% less casehardening than the control, whilst its low amplitude counterpart increased. The low amplitude Twb oscillated schedule had the least surface checks and splits.

Citing Articles

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[1]
Nohara Wada, Stavros Avramidis, and Luiz C. Oliveira
European Journal of Wood and Wood Products, 2014, Volume 72, Number 3, Page 377
[2]
Luiz Oliveira, Diego Elustondo, Arun Mujundar, and Ruben Ananias
Drying Technology, 2012, Volume 30, Number 15, Page 1792
[3]
Mariella De La Cruz-Lefevre, Romain Rémond, Daniel Aléon, and Patrick Perré
Wood Material Science and Engineering, 2010, Volume 5, Number 2, Page 84

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