Lab-scale 고온전기분해 수소생산시스템의 장기운전 성능평가

최미화; 최진혁; 이태희; 유영성; 고재화

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질문

자료유형: 학술저널

저자정보: 최미화 최진혁 이태희 유영성 고재화

저널정보: 한국수소및신에너지학회 한국수소및신에너지학회논문집 한국수소 및 신에너지학회 논문집 제22권 제5호

발행연도: 2011.10

수록면: 641 - 648 (8page)

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연구주제

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연구배경

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연구방법

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연구결과

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KEPRI (KEPCO Research Institute) designed and operated the lab-scale high temperature electrolysis (HTE) system for hydrogen production with 10 × 10 cm² 5-cell stack at 750℃. The electrolysis cell consists of Ni-YSZ steam/hydrogen electrode, YSZ electrolyte and LSCF based perovskite as air side electrode. The active area of one cell is 92.16 cm². The hydrogen production system was operated for 2664 hours and the performance of electrolysis stack was measured by means of current variation with from 6 A to 28 A. The maximum hydrogen production rate and current efficiency was 47.33 NL/hr and 80.90% at 28 A, respectively. As the applied current increased, hydrogen production rate, current efficiency and the degradation rate of stack were increased respectively. From the result of stack performance, optimum operation current of this system was 24 A, considering current efficiencies and cell degradations.

#고온전기분해 #고체산화물 전해셀 #수소생산 #초고온가스로 #High temperature electrolysis #Hydrogen production #Solid oxide electrolysis cell #Very high temperature reactor

참고문헌 (6)

참고문헌 신청

Meng Ni / 2008 / Technological development of hydrogen production by solid oxide electrolyzer cell (SOEC) / International Journal of Hydrogen Energy 33:2337~2354

Zhenwei Wang / 2010 / Steam electrolysis performance of intermediate -temperature solid oxide electrolysis cell and efficiency of hydrogen production system at 300 Nm3h-1 / International Journal of Hydrogen Energy 35:4451~4458

고재화 / 고온전기분해 수소생산 시스템 개발 및 현황 / 한국수소 및 신에너지학회 2010 춘계학술대회 논문집 :191~193

박재근 / 2006 / 중·저온형 SOFC를 위한 Ni-YSZ 연료극 지지체형 단전지 미세구조와 전기적 특성 / 한국세라믹학회지 43(12):823~828

이태희 / 2009 / 1kW 고체산화물 연료전지(SOFC) 시스템 설계 및 자열운전 / 한국수소및신에너지학회논문집 20(5):384~389