イシトビ　ヒロカズ   ISHITOBI HIROKAZU   石飛　宏和    所属   明治大学  理工学部    職種   専任准教授
言語種別	英語
発行・発表の年月	2012
形態種別	学術雑誌
査読	査読あり
標題	Durability of Lithium Chloride-Modified Magnesium Hydroxide on Cyclic Operation for Chemical Heat Pump
執筆形態	共著(筆頭者)
掲載誌名	JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
掲載区分	国外
出版社・発行元	SOC CHEMICAL ENG JAPAN
巻・号・頁	45(1),pp.58-63
著者・共著者	Hirokazu Ishitobi,Keirei Uruma,Junichi Ryu,Yukitaka Kato
概要	Lithium chloride (LiCl)-modified magnesium hydroxide (Mg(OH)(2)) is a material used for chemical heat pumps. LiCl-modified Mg(OH)(2) is able to store thermal energy at around 250 degrees C. LiCl-modified Mg(OH)(2) was examined using 1, 7, and 105 runs of a cyclic dehydration and hydration operation. The sample was dehydrated at 250 degrees C and hydrated at 110 degrees C. It was found that the hydration conversion, which corresponds to the heat output performance, decreased from 81.1 to 65.7%. There were no LiCl needle-like crystals on the sample before the cyclic operation. On the other hand, after 105 runs of the cyclic operation, the sample showed LiCl needle-like crystals. The reason for the decrease in the reactivity of the LiCl-modified Mg(OH)(2) could be a change in the surface state.
ISSN	0021-9592