Kinetic Analysis of the Effects of Mixing Mole Ratios of LiBr-to-Mg(OH)₂ on Dehydration and Hydration

DOI Web Site Web Site 被引用文献2件 参考文献6件 オープンアクセス
  • Myagmarjav Odtsetseg
    Department of Nuclear Engineering, Tokyo Institute of Technology
  • Ryu Junichi
    Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
  • Kato Yukitaka
    Department of Nuclear Engineering, Tokyo Institute of Technology

書誌事項

タイトル別名
  • Kinetic Analysis of the Effects of Mixing Mole Ratios of LiBr-to-Mg(OH)<sub>2</sub> on Dehydration and Hydration

この論文をさがす

抄録

A new candidate for a chemical heat storage material used in a magnesium oxide–water chemical heat pump at medium- temperature (200–300°C) was developed. The new composite, named EML, was fabricated by mixing pure magnesium hydroxide (Mg(OH)2) with lithium bromide (LiBr) and expanded graphite, which are employed as reactivity and heat transfer enhancers, respectively. The effects of mixing mole ratios of LiBr-to-Mg(OH)2, α, on both dehydration and hydration were kinetically investigated by a thermogravimetric method. It was experimentally demonstrated that the reacted mole fractions of dehydration and hydration increased with increasing α value. Further, the activation energy, Ea, of the dehydration process was significantly reduced for the EML with high α. Therefore, it was concluded that the Ea values determined here are dependent on α. Further, the EML composite showed cyclic ability with repeat reactions over five cycles. Thus, this composite can be used as a chemical heat storage material because of its ability to store heat at medium-temperatures ranging from 220 to 300°C.

収録刊行物

被引用文献 (2)*注記

もっと見る

参考文献 (6)*注記

もっと見る

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ