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寒冷地における籾貯蔵技術の確立 (第1報) : カントリーエレベータでの自然放冷による籾貯蔵
| Title: | 寒冷地における籾貯蔵技術の確立 (第1報) : カントリーエレベータでの自然放冷による籾貯蔵 |
| Other Titles: | Development of Techniques for Storing Rough Rice in Cold Regions (Part 1) : Storage of Rough Rice at Country Elevator with Natural Heat Radiation in Winter |
| Authors: | 竹倉, 憲弘 Browse this author | | 川村, 周三 Browse this author →KAKEN DB | | 伊藤, 和彦 Browse this author |
| Keywords: | 寒冷気候 | | 籾貯蔵 | | 超低温貯蔵 | | カントリーエレベータ | | サイロ | | 穀温 | | 水分 | | 胴割 | | 昇温工程 | | cold climate | | storage of rough rice | | super-low-temperature storage | | country elevator | | silo | | grain temperature | | moisture content | | fissure | | rewarming process |
| Issue Date: | 2003 |
| Publisher: | 農業食料工学会 |
| Journal Title: | 農業機械学会誌 |
| Journal Title(alt): | JOURNAL of the JAPANESE SOCIETY of AGRICULTURAL MACHINERY |
| Volume: | 65 |
| Issue: | 4 |
| Start Page: | 57 |
| End Page: | 64 |
| Publisher DOI: | 10.11357/jsam1937.65.4_57 |
| Abstract: | 寒冷地のカントリーエレベータでの籾貯蔵技術の実用化に向けて自然放冷による籾貯蔵試験を行った。その結果, 貯蔵中のサイロ内壁付近の籾の穀温が氷点下になること, および結露防止用ファンにより貯蔵中のサイロ内での結露を防止できることを明らかにした。さらに, 低温の籾をサイロから排出する際に乾燥機で常温通風する昇温技術を検証した。その結果, サイロからの籾排出時に結露にともなう籾への水分吸着が認められるが, 水分は先ず籾殻に吸着し, その後ゆっくりと玄米に水分が移行するために, 胴割の発生はないことを確認した。 | | An on-farm experiment in which 361 metric tons of rough rice was stored in a silo from November until July was conducted at a country elevator in Hokkaido to develop new techniques for storing rough rice in cold regions. The temperature of the rough rice near the inner silo wall decreased to below ice point (-5°C) due to natural heat radiation in winter, which the temperature of the rough rice in the center of the silo was maintained at almost the same temperature as that at the beginning of storage (5°C). Ventilation in the upper vacant space of the silo prevented moisture condensation on the inside surface of the silo during storage. When the cold rough rice was unloaded from the silo in summer, an unheated forced-air drier was used to increase the temperature of rough rice to above the dew point temperature of surrounding air. During the unloading and rewarming process, the moisture content of the rough rice increased due to moisture condensation on the grain from the air. However, the husks first absorbed the condensation and then the moisture slowly permeated into the brown rice kernel. Thus the rewarming process didn't cause any fissures in the brown rice. The results of the experiment indicate that condensation on rough rice doesn't give rise to any problems. |
| Rights: | © 農業機械学会 | | © The Japanese Society of Agricultural Machinery |
| Type: | article |
| URI: | http://hdl.handle.net/2115/70948 |
| Appears in Collections: | 農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 川村 周三
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