Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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Hydrogen production with high temperature solar heat thermochemical cycle using NiFe2O4/m-ZrO2 device

NiFe2O4/m-ZrO2 device를 이용한 고온 태양열 열화학 싸이클의 수소 생산

  • Lee, Jin-Gyu (Dept. of Mechanical Engineering, Graduate School, Inha University) ;
  • Shin, Il-Yoong (Dept. of Mechanical Engineering, Graduate School, Inha University) ;
  • Seo, Tae-Beom (Dept. of Mechanical Engineering, Inha University)
  • 이진규 (인하대학교 대학원 기계공학과) ;
  • 신일융 (인하대학교 대학원 기계공학과) ;
  • 서태범 (인하대학교 기계공학과)
  • Received : 2011.01.15
  • Accepted : 2011.02.18
  • Published : 2011.02.28
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Abstract

Two-step thermochemical cycle using ferrite-oxide($Fe_3O_4$) device was investigated. The $H_2O$(g) was converted into $H_2$ in the first experiment which was performed using a dish type solar thermal system. However the experiment was lasted only for 2 cycles because the metal oxide device was sintered and broken down. Another problem was that the reaction was taken place mainly on a side of the metal oxide device. The $m-ZrO_2$, which was widely known as a material preventing sintering, was applied on the metal oxide device. The ferrite loading rate and the thickness of the metal oxide device were increased from 10.67wt% to 20wt% and from 10mm to 15mm, respectively. The chemical reactor having two inlets was designed in order to supply the reactants uniformly to the metal oxide device. The second-experiment was lasted for 5 cycles, which was for 6 hours. The total amount of the $H_2$ production was 861.30mL.

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