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 Dual-zone Reactor and CeO2/ZrO2 Foam Device

Dual-zone reactor와 CeO2/ZrO2 Foam Device를 이용한 고온 태양열 열화학 싸이클의 수소 생산

  • Cho, Ji-Hyun (Department of Mechanical Engineering, Inha University) ;
  • Seo, Tae-Beom (Department of Mechanical Engineering, Inha University)
  • Received : 2017.07.24
  • Accepted : 2017.10.24
  • Published : 2017.10.30
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Abstract

In this study, an artificial solar simulator composed of a 2.5 kW Xe-Arc lamp and mirror reflector was used to carry out the solar thermal two step thermochemical water decomposition cycle which can produce high efficiency continuous hydrogen production. Through various operating conditions, the change of hydrogen production due to the possibility of a dual-zone reactor and heat recovery were experimentally analyzed. Based on the reaction temperature of Thermal-Reduction step and Water-Decomposition step at $1,400^{\circ}C$ and $1,000^{\circ}C$ respectively, the hydrogen production decreased by 23.2% under the power off condition, and as a result of experiments using heat recovery technology, the hydrogen production increased by 33.8%. Therefore, when a thermochemical two-step water decomposition cycle is conducted using a dual-zone reactor with heat recovery, it is expected that the cycle can be operated twice over a certain period of time and the hydrogen production amount is increased by at least 53.5% compared to a single reactor.

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References

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