International Journal of Air-Conditioning and Refrigeration

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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The Effect of Solution Pressure to the Release in a Supercooled Aqueous Solution

  • Kang, Chae-Dong (Department of Mechanical Engineering, Chonbuk National University) ;
  • Kim, Byung-Seon (Samsung Electronics Co.) ;
  • Hong, Hi-Ki (School of Mechanical and Industrial System Engineering, KyungHee University)
  • Published : 2009.03.31
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Abstract

Supercooled type ice storage system with aqueous solution (or water) may have trouble with non-uniform release of supercooling even though it contributes to the simplicity of system and ecological improvement. The non-uniform release increases the instability of the system because it may cause an ice blockage in pipe or cooling part. In order to suppress the release of the supercooling, a cooling experiment was tried to an ethylene glycol(EG) 3 mass% solution corresponding with pressurization. Also, the frequency ratio of the release of the supercooling was measured to the pressurization from 101 to 505 kPa. At results, the frequency ratio of supercooling release tends to decrease as the pressure of the aqueous solution increased in each cooling rate. Moreover, it tends to decrease as the cooling rate of the solution decreased in each pressure.

Keywords

References

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