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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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In-Situ Measurement of Chiller Performance and Thermal Storage Density of an Ice Thermal Storage System

빙축열 시스템 냉동기 성능 및 축열밀도 현장측정 기법연구

  • Shin Younggy (Department of Mechanical Engineering, Sejong University) ;
  • Yang Hooncheul (Building Energy Research Center, Korea Institute of Energy Research) ;
  • Tae Choon-Seob (Building Energy Research Center, Korea Institute of Energy Research) ;
  • Cho Soo (Building Energy Research Center, Korea Institute of Energy Research) ;
  • Kim Youngil (School of Architecture, Seoul National University of Technology)
  • 신영기 (세종대학교 기계공학과) ;
  • 양훈철 (한국에너지기술연구원) ;
  • 태춘섭 (한국에너지기술연구원) ;
  • 조수 (한국에너지기술연구원) ;
  • 김영일 (서울산업대학교 건축학부)
  • Published : 2005.12.01
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Abstract

In-situ measurement was made to evaluate chiller performance and thermal storage density of an ice thermal storage system. The system belonged to a big hotel and the measurement was conducted during late October. Owing to very small cooling load, the data logging was possible for a single thermal storage cycle. However, operation history of the chiller showed a relatively good spectrum of data for performance evaluation. COP and thermal storage density were calculated. The COP at full load was about 4.07, which was lower than $4.8\~6.4$ of new chillers. The measured storage density was about $10.9RT-h/m^3\;(=152MJ/m^3)$, which also was lower than a criterion of normal performance $(above\;13.0RT-h/m^3\;or\;181MJ/m^3)$. The study result provides technical basis for quantitative ESCO business scenario.

Keywords

References

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