open access

https://hdl.handle.net/2115/77567

Development of High-temperature Latent Heat Storage/Transportation Particle

日本語

潜熱蓄熱

2015-07-27

The Japan Institute of Energy

日本エネルギー学会大会講演要旨集

24

196-197

会議情報 主催: 一般社団法人　日本エネルギー学会 後援: 国立研究開発法人　新エネルギー・産業技術総合開発機構 会議名: 第24回日本エネルギー学会大会 開催地: 北海道　札幌コンベンションセンター 開催日: 2015/08/03 - 2015/08/04

We developed a core-shell type microencapsulated phase change material (MEPCM) which has high storage density for high temperature (> 500 ℃) applications. Al-Si alloy with melting temperature of 577 ℃ was selected as a PCM. The MEPCM was prepared in two steps: (1) the formation of an AlOOH shell on the PCM particles using a boehmite treatment, and (2) heat-oxidation treatment in an O_2 atmosphere to form a stable α-Al_2O_3 shell. As results, the MEPCM covered with dense α-Al_2O_3 shells were successfully prepared and it presented a melting point of 573 ℃, latent heat of 247 J g^<-1>, and good cyclic performance. These results indicated the possibility of using MEPCM at high temperatures. The MEPCM developed in this study has great promise in future energy and chemical processes, such as exergy recuperation and process intensification.

会議発表論文

Version of Record

2423-8317

2423-8325

AA12292973