Next generation latent heat storage technology using non-encapsulated PCM suitable for long term storage and transportation

• Project/Area Number: 15K14296
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Energy engineering
• Research Institution: Hokkaido University
• Principal Investigator: OKINAKA Noriyuki 北海道大学, 工学研究院, 准教授 (20250483)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 潜熱蓄熱 / PCM / ガラス化 / 熱輸送

Outline of Final Research Achievements

It's possible to store the heat in high-density using phase change material (PCM). But long term heat-storage and transportation of heat are impossible by conventional latent heat-storage technique, and heat to be stored with PCM of the liquid phase, the encapsulation to prevent leakage of PCM is indispensable. On the other hand, when a substance is quenched beyond specific cooling speed from liquid state, it change into glass state via supercooled state. In this study, new latent heat storage system using "glass-transition" is proposed. In this study, new latent heat storage system using "glass-transition" is proposed. Encapsulation of PCM is unnecessary and heat-storage and heat-transportation become possible to quench liquid PCM and make them glass-transition state. A reuse process of the heat stored by PCM using the glass transition state were considered, as a result, it was indicated its high utility.

Research Products

• [Journal Article] Thermal analysis of Al–Si alloys as high-temperature phase-change material and their corrosion properties with ceramic materials (2016)
  • Author(s): Ryo Fukahori, Takahiro Nomura, Chunyu Zhu, Nan Sheng, Noriyuki Okinaka, Tomohiro Akiyama
  • Journal Title: Applied Energy Volume: 163 Pages: 1-8
  • DOI: 10.1016/j.apenergy.2015.10.164
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Macro-encapsulation of metallic phase change material using cylindrical-type ceramic containers for high-temperature thermal energy storage (2016)
  • Author(s): Ryo Fukahori, Takahiro Nomura, Chunyu Zhu, Nan Sheng, Noriyuki Okinaka, Tomohiro Akiyama
  • Journal Title: Applied Energy Volume: 170 Pages: 324-328
  • DOI: 10.1016/j.apenergy.2016.02.106
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Improvement on Heat Release Performance of Direct-contact Heat Exchanger Using Phase Change Material for Recovery of Low Temperature Exhaust Heat (2015)
  • Author(s): T. Nomura, M. Tsubota, A. Sagara, N. Okinaka, T. Akiyama
  • Journal Title: ISIJ International Volume: 55 Issue: 2 Pages: 441-447
  • DOI: 10.2355/isijinternational.55.441
  • NAID: 130004734557
  • ISSN: 0915-1559, 1347-5460
  • Peer Reviewed / Open Access
• [Presentation] 供給側としての鉄鋼産業：鉄鋼排熱の利用と蓄熱技術 (2017)
  • Author(s): 沖中憲之
  • Organizer: 日本鉄鋼協会 第173回秋季講演大会
  • Place of Presentation: 首都大学東京（八王子）
  • Year and Date: 2017-03-15
  • Invited
• [Presentation] 鉄鋼排熱の利用と蓄熱技術・熱交換技術 (2017)
  • Author(s): 沖中憲之
  • Organizer: 日本鉄鋼協会 第174回秋季講演大会 北海道大学
  • Invited
• [Presentation] 排熱利用と蓄熱技術 (2016)
  • Author(s): 沖中憲之
  • Organizer: 日本鉄鋼協会 第172回秋季講演大会
  • Place of Presentation: 大阪大学（豊中）
  • Year and Date: 2016-09-21
  • Invited
• [Presentation] 高温蓄熱システムのための合金PCMカプセルの開発 (2015)
  • Author(s): 深堀諒，能村貴宏，朱春宇，沖中憲之，秋山友宏
  • Organizer: 日本化学工学会 第47回秋季大会
  • Place of Presentation: 北海道大学 札幌キャンパス
  • Year and Date: 2015-09-09
• [Presentation] 次世代太陽熱発電のための合金PCMカプセル化技術 (2015)
  • Author(s): 深堀諒, 能村貴宏, 朱春宇, 盛楠, 沖中憲之, 秋山友宏
  • Organizer: 日本エネルギー学会 第24回大会
  • Place of Presentation: 札幌コンベンションセンター
  • Year and Date: 2015-08-03