Transpirational drying of flat piled logging residues for wood fuel chips

被引：0

作者：

Ichihara, Takashi ^{[1
]}

Yamaguchi, Tatuya ^{[2
]}

Masaoka, Hisashi ^{[1
]}

Itai, Takuji ^{[3
]}

Matsuoka, Yoshiaki ^{[1
]}

Miyata, Daisuke ^{[4
]}

Kobatake, Atushi ^{[5
]}

Suzuki, Yasushi ^{[6
]}

Fujiwara, Shinji ^{[6
]}

机构：

[1] Kochi Prefectural Forest Technology Center, Kami 782-0078

[2] Chuuouhigashi Forestry Office, Kochi Prefecture, Tosayamada, Kami 782-0012

[3] Kochi-ken Hata Ringyou Jimusyo, Nakamura, Shimanto 787-0028

[4] Niyodo Fire Department, Agawa-gun, Kochi 781-2110

[5] Kissei Pharmaceutical Co. Ltd., Matsumoto 399-8710

[6] Faculty of Agriculture, Kochi University, Nankoku 783-8502

来源：

Nihon Ringakkai Shi/Journal of the Japanese Forestry Society | 2009年 / 91卷 / 03期

关键词：

Crossbeams; Logging residue; Moisture content; Paved; Transpirational drying;

D O I：

10.4005/jjfs.91.192

中图分类号：

学科分类号：

摘要：

We analyzed the influence of drying condition on drying speed( arrival day of moisture content 50% or decline trend of moisture content) under the condition that character of logs( height above ground, log length) or drying methods (days of drying, paved or unpaved, using or not using of crossbeam, presence or absence of roof) to develop efficient dry method of Japanese cypress and Japanese cedar for woody biomass boiler. The days required to reach 50% moisture content were that in case of Japanese cypress of 80% initial moisture content were 83∼151 days and in case of Japanese cedar of 130% initial moisture content were 93∼187 days. The drying rate of cypress were faster in order 1m187 days. The drying rate of cypress were faster in order 1m log with roof and crossbeam, 1 m log on paved area and 2 m log on paved area. In case of cedars the drying rate were faster in order 2 m logs with crossbeams on paved area, 2 m logs with crossbeam on ground, 2 m logs on paved area, 2 m logs on ground. About paved and unpaved, drying speed of paved area was faster than unpaved area. The drying speed was faster in the case of using crossbeams and paved area. Drying speed in case of using crossbeams on unpaved place was as fast as that of using crossbeams on paved place.

引用

页码：192 / 200

页数：8