Development of hybrid kiln drying system with radio frequency heating for the sugi boxed heart timber

Jinji Piao, Noboru Fujimoto, Yasushi Yamamoto, Soji Nagata

研究成果: Contribution to journalArticle

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In this study, proper applied stage of the radio-frequency (RF) heating during kiln drying based on the quality concerning the surface checks of the boxed heart timbers was examined. At the stage of the RF heating the moisture contents decreased clearly at the internal parts of timbers. The surface stress of the sugi (Cryptomeria japonica D. Don) boxed heart timber changed into the compression stress by the RF heating in any drying stage. The surface checks increased according to the decrease of the moisture content. However, the increase of the area and the width of the surface checks in the Link 3 were comparatively low, and the quality of these boxed heart timbers seemed relatively good. The amount of electric energy of RF heating in the Link 3 was fewer than that in the Link 1, 2.

元の言語英語
ページ(範囲)117-121
ページ数5
ジャーナルJournal of the Faculty of Agriculture, Kyushu University
52
発行部数1
出版物ステータス出版済み - 2 2007

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences (miscellaneous)

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