JSME International Journal Series A Solid Mechanics and Material Engineering
Online ISSN : 1347-5363
Print ISSN : 1344-7912
ISSN-L : 1344-7912
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Optimization of Thermal Preprocessing for Efficient Combustion of Woody Biomass
Seiji KUMAGAIMasahiko ARANAIKoichi TAKEDAYukio ENDA
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2005 Volume 48 Issue 4 Pages 426-431

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Abstract

We attempted to optimize both drying time and temperature for stem chips and bark of Japanese cedar in order to obtain the largest release of combustion heat. Moisture release rates of the stem and bark during air-drying in an oven were evaluated. Higher and lower heating values of stem and bark, dried at different temperatures for different lengths of time, were also evaluated. The drying conditions of 180°C and 30min resulted in the largest heat release of the stem (∼ 4%increase compared to conditions of 105°C and 30min). The optimal drying conditions were not obvious for bark. However, for the drying process in actual plants, the conditions of 180°C and 30min were suggested to be acceptable for both stem and bark.

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© 2005 by The Japan Society of Mechanical Engineers
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