著者

栩谷 吉郎 藤本 雅則

出版者

日本熱物性学会

雑誌

熱物性 (ISSN:0913946X)

巻号頁・発行日

vol.15, no.4, pp.230-236, 2001-10-31 (Released:2009-03-03)

参考文献数

18

被引用文献数

3 9

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あまに油,とうもろこし油,大豆油,菜種油,綿実油,落花生油,ぬか油,紅花油,やし油,パーム油の合計10種類の植物油について比熱容量を測定した.測定は,試料をできる限り均一に加熱する目的で加熱と攪拌を同時に行えるように設計した回転型ヒータをもつ断熱型熱量計で行われた.圧力は大気圧下,温度範囲は常温付近から約440Kまでとした.各試料に対する比熱容量の近似式が,温度の関数として作成され,提示されている.

著者

栩谷 吉郎 川北 英貴

出版者

一般社団法人 日本機械学会

雑誌

日本機械学会論文集 (ISSN:21879761)

巻号頁・発行日

vol.83, no.850, pp.16-00528-16-00528, 2017 (Released:2017-06-25)

参考文献数

8

被引用文献数

1

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An experimental study has been carried out to clarify the effect of quantity of absorbed water on behaviour of single silica-gel particles in oil with dc electric field, as a basic research to augment adsorption. The progress of adsorption changes mass and physical properties of a silica-gel particle, and the change might influence the behaviour of the particle. The experiment is conducted under condition that the adsorbed material is only water, and the quantity of water is adjusted beforehand to prescribed value. Two electrode plates are horizontally set up 40 mm apart in silicone oil. Particle diameter is adopted of 2.7, 4.0 and 5.0 mm, and the range of applied voltage is 0 - 28 kV. The applied voltage is increased at approximately 2kV/min. Observation of behaviour of a silica-gel particle starts from resting condition on a lower electrode. As a result, a dried silica-gel particle does not begin moving even at the maximum voltage. For a silica-gel particle of water adsorbed, following four stages have been observed, excluding a very few exceptions; rise from the upper side of lower electrode to the upper electrode, bound and rest on the lower side of the upper electrode, descent to the lower electrode, and bound and rest on the lower electrode. The rest time on the electrode is not seen to a completely water-absorbed silica-gel particle. It is thought that the particle exchange the electric charge at the rest time. The applied voltage for the leave of a silica-gel particle from the lower electrode, rest time on each electrode, and bound height from each electrode are also shown.