Abstract
This study aimed at developing a simple, quantitative index for measuring the water resistance of wood pellets. Pellets made from various wood raw materials and other plant-based raw materials, as well as torrefied pellets, were used. Two aluminum plates with a size of 50 mm × 60 mm × 10 mm (about 76.6 g) with two dents were prepared. Two samples were laid on the plate in water and were covered with another plate. A displacement meter contacted the plate, and the rise of the plate because of sample swelling was recorded at 10-s intervals until the rise became stable. The effect of the weight of the aluminum plate and displacement meter were not significant. The temporal change in the diameter swelling of pellets was believed to be expressed by the equation developed. The suitable length of samples required for this test was obtained.
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References
Japan Wood Pellet Association (2011) Quality standard of wood pellet. http://www.mokushin.com/jpa/news/news_04.pdf. Accessed 31 March 2011
Kubojima Y, Yoshida T, Sano T, Ohara S (2011) Mechanical durability of torrefied wood pellets. In: Proceedings of the 11th Pacific Rim Bio-Based Composites Symposium (BIOCOMP 2012), Shizuoka, Japan, 28–30 November, pp 596–601
Kuroda K, Kubo S, Kamikawa D, Inoue M, Yoshida T (2009) Abstract of the 59th Annual Meeting of the Japan Wood Research Society:PQ008; Matsumoto, Japan, 15–17 March 2009
Sawabe O, Saito N, Kurai A, Nakagawa K (2005) Abstract of the 55th annual meeting of Japan Wood Research Society:T61045; Kyoto, Japan, 16–18 March 2005
Sekino N, Suematsu A, Fujimoto Y, Kitani Y, Wang Q (2000) Effect of manufacturing parameters on the linear expansion of densified wood composite panels I. Effect of element size and press temperature. Mokuzai Gakkaishi 46:334–341
Stelte W, Clemons C, Holm JK, Sanadi AR, Ahrenfeldt J, Shang L, Henriksen UB (2011) Pelletizing properties of torrefied spruce. Biomass Bioenergy 35:4690–4698
Suzuki S, Miyamoto K (1998) Effect of manufacturing parameters on the linear expansion and density profile of particleboard. J Wood Sci 44:444–450
Suzuki S, Saito F (1988) Fatigue properties of particleboards I. Effects of aging treatment on tensile properties parallel to the surface. Mokuzai Gakkaishi 34:590–596
Suzuki S, Saito F, Arima T (1985) Properties of particleboards made from wood element from demolished building. Wood Industry 40:15–20
Yoshida T, Sano T, Nomura T, Gensai H, Watada H, Kamikawa D, Kuroda K, Kubojima Y, Furusawa H, Miura S, Kaneko S, Ohara S (2011) Fundamental study on production of “hyper wood pellet”—(2) Effect of torrefaction condition of Japanese wood chips on grinding and pelletizing properties. In: Proceedings of 19th European Biomass Conference and Exhibition, 6–10 June 2011, Berlin, pp 2015–2018
Yoshida T, Sano T, Ohara S (2012) Research on the upgraded wood pellet “Hyper wood pellet” by torrefaction. Wood Industry 67:560–565
Acknowledgments
This work was financially supported by the programs “Development of processing and utilizing woody biomass”, by the Forestry Agency of Japan.
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Kubojima, Y., Yoshida, T. Testing method for determining water resistance of wood pellets. Eur. J. Wood Prod. 73, 193–198 (2015). https://doi.org/10.1007/s00107-014-0868-7
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DOI: https://doi.org/10.1007/s00107-014-0868-7