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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Influence of the Supercooling Degree and Cooling Rate on a Continuous Ice Formation by a Supercooled Aqueous Solution in Flow Using a Plate Heat Exchanger

판형 열교환기를 이용한 과냉각수용액에서 유동과냉도 및 냉각속도가 연속제빙에 미치는 영향

  • Lee, Dong-Gyu (Graduate School, Chonbuk National University) ;
  • Peck, Jong-Hyeon (Korea Institute of Industrial Technology) ;
  • Hong, Hi-Ki (School of Mechanical and Industrial System Engineering, KyungHee University) ;
  • Kang, Chae-Dong (Department of Mechanical Engineering, Chonbuk National University)
  • 이동규 (전북대학교 대학원) ;
  • 백종현 (한국생산기술연구원) ;
  • 홍희기 (경희대학교 기계산업시스템공학부) ;
  • 강채동 (전북대학교 기계공학과 전북대학교 공업기술연구센터)
  • Published : 2007.09.10
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Abstract

In dynamic ice storage system(DISS), ice slurry is formed not only from solution freezing by mechanical removing parts but also supercooled solution. However, in order to perform continuous ice formation in the system without mechanical moving parts, supercooled aqueous solution should be formed stable through cooling heat exchanger and be dissolved uniformly in storage tank. In previous study, the time of ice slurry increased as the pressure of the cooling heat exchanger(PHX) increased. In this study, a cooling experiment of an ethylene glycol 7mass% solution was performed with various inlet temperature of the PHX, which has constant brine inlet temperature of $-7^{\circ}C$. The temperature in the storage tank maintained to freezing point of the solution. At results, the time of ice slurry formation increased as the supercooling degree decreased and the cooling rate increased.

Keywords

References

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