Effect of supercooling and cooling rate on a continuous ice slurry formation using a plate heat exchanger

판형 열교환기에서 유동 과냉도 및 냉각속도가 연속제빙에 미치는 영향

  • 이동규 (전북대학교 기계공학과) ;
  • 백종현 (한국생산기술연구원 냉동공조연구팀) ;
  • 홍희기 (경희대학교 기계산업시스템공학부) ;
  • 강채동 (전북대학교 기계항공시스템공학부)
  • Published : 2006.06.21

Abstract

The peculiarity of ice slurry, such as liquidity, high heat transfer rate and easy storage can also find to supercooled type dynamic ice storage system(DISS) which is one of the DISS. However, in order to accomplish continuous ice formation in the system without mechanical moving parts, supercooled aqueous solutionshould be formed stable through cooling heat exchanger and be dissoluted in storage tank. In previous research, 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.

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