| 학회 |
한국공업화학회 |
| 학술대회 |
2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
23권 2호 |
| 발표분야 |
포스터_환경·에너지 |
| 제목 |
Thermal properties of 1-docosanol based composites containing copper nanoparticles |
| 초록 |
Organic phase change materials (PCMs) have been utilized for highly effective thermal energy management. However, the low thermal conductivity is its major drawback decreasing the heat transfer rate during melting and recrystallization. In this work, 25 nm copper nanoparticles (Cu NPs) were dispersed into 1-docosanol (DA) to produce Cu NPs-PCM composite (Cu-PCM) for thermal energy storage (TES) with high thermal conductivity. In such a composite, DA serves as latent heat storage material and Cu NPs acts thermally conductive materials. Well dispersed Cu NPs acts as heterogeneous nuclei, has strong interaction with DA molecules. As a result, thermal properties such as the thermal conductivity and supercooling are significantly enhanced. Moreover, unexpected solid – metastable solid (S – Sm) phase transitions appeared during the melting process of the Cu-PCMs which had a beneficial effect on the amount of latent heat. |
| 저자 |
김인현, 이경미, 심효원, 홍희현, 김태순, 김동우, 이동구
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| 소속 |
한국화학(연) |
| 키워드 |
Phase change material; Copper nanoparticles; 1-docosanol; Thermal properties; solid - metastable solid phase transition
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| E-Mail |
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