Hokkaido University · Engineering
노무라 타카히로 교수의 연구실은 고온에서 안정적으로 작동하는 열에너지 저장 소재 및 장치 개발에 초점을 맞추고 있습니다. 주로 알루미늄-실리콘 합금을 활용한 마이크로캡슐화된 상변화물질(MEPCM)과 산화알루미늄 코팅을 통해 고온에서도 열적 안정성을 확보한 복합 소재를 개발하고 있으며, 이는 스토리지 효율성과 수명을 향상시킵니다. 또한 고성능 전력 소자와 연계된 고온에서의 에너지 효율성 향상 기술도 함께 연구하고 있습니다.
Figures are computed from collected data and may differ slightly.
Latent heat storage using alloys as phase change materials (PCMs) is an attractive option for high-temperature thermal energy storage. Encapsulation of these PCMs is essential for their successful use. However, so far, technology for producing microencapsulated PCMs (MEPCMs) that can be used above 500°C has not been established. Therefore, in this study, we developed Al-Si alloy microsphere MEPCMs covered by α-Al2O3 shells. The MEPCM was prepared in two steps: (1) the formation of an AlOOH shell
To save energy and reduce CO2 emissions, the utilization of solar energy and waste heat using latent heat storage (LHS) has emerged as an attractive solution because of advantages such as large density of heat storage, constant-temperature heat supply, and repeatable utilization without degradation. This review describes research trends in LHS technologies using phase-change materials (PCMs) based on papers published from 2001–2009, and state-of-the-art LHS technologies for high-temperature appl
A microencapsulated Al–Si phase change material with a multi-layered Al<sub>2</sub>O<sub>3</sub> shell.
The practical application of low-temperature latent heat storage systems is limited by the low thermal conductivity of the phase-change material (PCM). We fabricated a phase-change composite (PCC) with high thermal conductivity (k) and a high thermal-conductivity-retention rate (k/k0) during thermal cycles to solve this problem. A new type of high-thermal-conductivity carbon fibre sheet (CFS) material was used to enhance the thermal conductivity of erythritol PCM. CFSs were stacked and compresse
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