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박진영(JIN YOUNG PARK),쿠엔(THAI-QUYEN QUACH),김진선(JINSUN KIM),배용균(YONGGYUN BAE),이동근(DONGKEUN LEE),김영상(YOUNGSANG KIM),이선엽(SUNYOUP LEE),김영(YOUNGSANG KIM) 한국수소및신에너지학회 2024 한국수소 및 신에너지학회논문집 Vol.35 No.1
Ammonia is drawing attention as carbon free fuel due to its ease of storage and transportation compared to hydrogen. This study suggests ammonia fueled solid oxide fuel cell (SOFC) system with electrochemical hydrogen compressor (EHC)-based recirculation. Performance of electrochemical hydrogen pump is based on the experimental data under varying hydrogen and nitrogen concentration. As a result, the suggested system shows 62.04% net electrical efficiency. The efficiency is 10.33% point higher compared to simple stand-alone SOFC system (51.71%), but 0.02% point lower compared to blower-based recirculation system (62.06%). Further improvement in the EHC-based SOFC recirculation system can be achieved with EHC performance improvement.