Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
권호 표지

Thermodynamic Analysis of Thermochemical Process for Water Splitting

고온열 이용 공정의 열역학적 해석

  • Kim, Jong-Won (Hydrogen Energy Research Center, Korea Institute of Energy Research) ;
  • Son, Hyun-Myung (Hydrogen Energy Research Center, Korea Institute of Energy Research) ;
  • Lee, Sana-Ho (Hydrogen Energy Research Center, Korea Institute of Energy Research) ;
  • Sim, Kyu-Sung (Hydrogen Energy Research Center, Korea Institute of Energy Research) ;
  • Jung, Kwang-Deog (Eco-nano Research Center, Korea Institute of Science and Technalogy)
  • 김종원 (수소에너지연구센터, 한국에너지기술연구원) ;
  • 손현명 (수소에너지연구센터, 한국에너지기술연구원) ;
  • 이상호 (수소에너지연구센터, 한국에너지기술연구원) ;
  • 심규성 (수소에너지연구센터, 한국에너지기술연구원) ;
  • 정광덕 (나노환경연구센터 한국과학기술연구원)
  • Published : 2002.09.15

Abstract

In this work, hydrogen production by a 2-step water-spritting thermochemical cycle based on metal oxides redox pairs was investigated on the bases of the thermodynamics and technical feasibility. Also, a 2nd-law analysis performed on the closed cyclic process indicates a maximum exergy conversion efficiency of 7.1% when using a solar cavity-receiver operated at 2300K and air/Fe3O4 molar ratio = 10.

Keywords

Water splitting;Hydrogen;Thermochemical cycle;Ferrite

File

Download PDF

Acknowledgement

Grant : 고효율수소제조기술개발연구

Supported by : 과학기술부

References

  1. Y. Tamaura, N. Kojima, N. Hasegawa, M. Inoue, R. Uehara, N. Gokon and H. Kaneko, "Stoichiometric studies of H2 generation reaction for H20/Zn/Fe304 system", Int. J. Hydrogen Energy, Vol 26, 2001, pp. 917-922 https://doi.org/10.1016/S0360-3199(01)00039-8
  2. J. A. Funk, "Thermochemical hydrogen production: past and present", Int. J. hydrogen Energy, Vol 26, 2001, pp. 185-190 https://doi.org/10.1016/S0360-3199(00)00062-8
  3. A. Yogev, A. Kribus, M. Epstein and A.Kogan, "Solar 'tower reflector' systems: a new approach for high-temperature solar plants", Int. J. Hydrogen Energy, Vol 23, 1998, pp. 239-45 https://doi.org/10.1016/S0360-3199(97)00059-1
  4. 掘 雅夫, "原子力水業生産の 國際動向", 原子力eye, 2002년 9월호 (일본)
  5. A. Steinfeld, S. Sanders and R. Palumbo, "Design aspects of solar thennochemical engineering-a case study: two-step water-splitting cycle using the $Fe_{3}O_{4}$/FeO redox system", Solar Energy, Vol 65, No. 1, 1999, pp. 43-53 https://doi.org/10.1016/S0038-092X(98)00092-9
  6. A. Steinfeld, M. Brack, A. Meier, A. Weidenkaff, and D. Wuillemin, "A solar chemical reactor for co-production of Zinc and synthesis gas", Energy-the International Journal, Vol 23, No 10, 1998, pp. 803-814 https://doi.org/10.1016/S0360-5442(98)00026-7
  7. M. Lundberg, "Model calculations on some feasible two-step water splitting processes", Int. J. Hydrogen Energy, Vol 18, No 5, 1993, pp. 369-376 https://doi.org/10.1016/0360-3199(93)90214-U
  8. 김종원, 손현명, 이상호, 심규성, 정광덕, "고온열 이용 공정의 열역학적 해석", 한국수소에너지학회 춘계학술대회논문집, 2002
  9. A. Steinfeld, "Solar hydrogen production via a two-step water-splitting thermochemical cycle based on Zn/ZnO redox reactions", Int. J. Hydrogen Energy, Vol 27, 2002, pp.611-619 https://doi.org/10.1016/S0360-3199(01)00177-X
  10. T. Sano, N. Hasegawa, M. Tsuji and Y. Tamaura, "A carbon-bearing nickel (II) ferrite: a tailor-made solid reactant for two-step thennochemical water splitting at 300oC", J. Mater.Chem., Vol 6, No 4, 1996, pp. 605-609 https://doi.org/10.1039/jm9960600605
  11. K. Ehrensberger, A. Frei, P Kuhn, H.R. Oswald and P Hug, "Comparative experimental investigations of the water-splitting reaction with iron oxide Fel-yO and iron manganese oxides (Fel-xMnx)l-yO", Solid State lonics, Vol 78, 1995, pp. 151-160 https://doi.org/10.1016/0167-2738(95)00019-3