development of third-generation latent heat storage technology utilizing the glass transition

2015 Fiscal Year Final Research Report

• Project/Area Number: 26630491
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Energy engineering
• Research Institution: Hokkaido University
• Principal Investigator: Nomura Takahiro 北海道大学, 工学(系)研究科(研究院), 准教授 (50714523)
• Co-Investigator(Kenkyū-buntansha): AKIYAMA Tomohiro 北海道大学, 大学院工学研究院附属エネルギー・マテリアル融合領域研究センター, 教授 (50175808)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 潜熱蓄熱 / 蓄熱 / 熱輸送 / ガラス化 / 熱分析

Outline of Final Research Achievements

Latent heat storage technology, which utilizes latent heat during solid-liquid phase transition of a phase change material (PCM), can realize a high heat storage capacity and supply heat at a constant temperature. Therefore, this method is suitable for waste heat recovery and solar energy utilization. However a conventional latent heat storage technology cannot realize a long-term heat storage. In addition, an encapsulation technology is needed to avoid a leakage of liquid PCM during heat storage. Therefore, this study proposed third-generation latent heat storage technology utilizing the glass transition to achieve for super long term heat storage and capsule free heat transportation. As results, we investigated a noble glass-transition sugar-alcohol PCM which can be applied the proposed concept. In addition, we designed new heat transportation processes which can achieve the proposed concept.

Free Research Field

エネルギー化学工学