| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.99 |
| 발표분야 |
공업화학(Industrial Chemistry) |
| 제목 |
Application of phase separation model for phase changing of α- to β-metal hydride phase during hydrogen absorption |
| 초록 |
Metal hydrides are promising materials to store hydrogen in a solid state. Hydrogen is absorbed into interstitial sites in metal phase and metal hydride phase (α-phase) is evolved as the amount of absorbed hydrogen increases. At certain limit, another metal hydride phases known as β-phase is formed and coexistence of α- and β-phase takes place under isobaric condition. In the present study, the generation and the growth of β-phase was modeled using a phase separation model. The phase change is known as a diffusion controlled phenomenon similar with spinodal decomposition. Therefore, a diffusion equation was set up based on a phase-field theory. Some experimental data were correlated to verify the model. The proposed model would be applied to simulate the absorption behavior of metal hydrides. |
| 저자 |
박병흥1, 조형원1, 박주식2
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| 소속 |
1한국교통대, 2한국에너지기술(연) |
| 키워드 |
흡수∙분리∙제거 기술 |
| E-Mail |
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| 원문파일 |
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