Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Experimental Study on Zeolite 13x for Thermochemical Heat Storage

제올라이트를 이용한 화학축열에 대한 실험적 연구

  • Ha, Seungho (Center for Urban Energy Research, Korea Institute of Science and Technology) ;
  • Park, Junghoon (Center for Urban Energy Research, Korea Institute of Science and Technology) ;
  • Lee, Soohun (Center for Urban Energy Research, Korea Institute of Science and Technology) ;
  • Kim, Kwang Ho (Center for Urban Energy Research, Korea Institute of Science and Technology)
  • 하승호 (한국과학기술연구원 도시에너지연구단) ;
  • 박정훈 (한국과학기술연구원 도시에너지연구단) ;
  • 이수헌 (한국과학기술연구원 도시에너지연구단) ;
  • 김광호 (한국과학기술연구원 도시에너지연구단)
  • Received : 2016.12.26
  • Accepted : 2017.07.05
  • Published : 2017.08.10
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Abstract

There are three main methods to store heat energy; sensible heat storage, latent heat storage, and thermochemical heat storage. Thermochemical heat storage has the highest storage density among the three methods, so this study focused on the thermochemical heat storage method. Experiments were conducted in this study with Zeolite 13x as thermochemical material in a large-scale reactor with 8 kg of Zeolite 13x. Experiments analyzed storage density of Zeolite 13x with respect to four different heating temperatures ($50^{\circ}C$, $100^{\circ}C$, $150^{\circ}C$, $200^{\circ}C$) in heat storage process. As a result, they showed 40~50 percent of storage efficiency in the experiment. Experiments also revealed that reactions between Zeolite 13x and water vapor were reversible and stable, but efficiency of the system was low, compared with sensible heat storage systems or latent heat storage systems.

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References

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