| 학회 | 한국화학공학회 |
| 학술대회 | 2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터) |
| 권호 | 19권 1호, p.521 |
| 발표분야 | 에너지 |
| 제목 | Numerical analysis on solid oxide electrolysis cell with graded electrode |
| 초록 | A two-dimensional model is developed to investigate the effect of graded electrode in solid oxide electrolysis cell (SOEC). The SOEC is attractive device for producing hydrogen without noble catalysts, and it could have more electrical efficiency than low temperature electrolysis. In the SOEC, electrochemical reaction takes place in the electrode and causes overpotential losses which depend on activation, ohmic resistance and diffusion limit. The microstructure of electrode affects the performance of SOEC as it is related to active site and porosity. In order to study the advantage of varying microstructure, the graded electrode is introduced, and numerical studies are performed under different grading profiles. The results reveal that the overpotential loss of cell is influenced by grading profile, and it is concluded that an optimized grading file shows improved performance. Acknowledgment: This work was supported by “The development of a residential green-home SOFC m-CHP system and its field test” under the Ministry of Knowledge Economy (MKE). This work is the outcome of a Manpower Development Program for Energy supported by the Ministry of Knowledge and Economy (MKE). |
| 저자 | 이승주, 이성철 |
| 소속 | 한양대 |
| 키워드 | SOEC; CFD; MODELING; GRADED ELECTRODE |
| 원문파일 | 초록 보기 |
