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접시형 태양열 집광 시스템을 이용한 열화학 사이클의 수소생산
권해성(Haesung Kwon),신예원(Yewon Shin),오상준(sangjune Oh),서태범(Taebeom Seo) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10
The two-step water splitting thermochemical cycle is composed of the T-R (Thermal Reduction) and W-D (Water Decomposition) steps. The reaction temperature necessary for this thermochemical cycle can be achieved by a dish-type solar thermal collector. The purpose of this study is to validate a water splitting device in the field. The validation results show that the foam device, when loaded with NiFe2O4/m-ZrO2 powder, was successfully achieved hydrogen production with 9 repeated cycles under field conditions. Two foam device used in this study were tested for validation before an experiment was performed. The lab scale ferrite-conversion rate was in the range of 24~76%. Two foam devices were designed to for structural stability in this study. In the results of the experiments, the hydrogen percentage of the weight of each foam device was 6.145 and 6.228 NL/(kg·h) on average, and the conversion rates 4.49~29.97 and 2.55~58.83%, respectively.