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Effect of Pressurization and Cooling Rate on Dissolution of a Stationary Supercooled Aqueous Solution  

Kim, Byung-Seon (Graduate school of Mechanical Engineering, Chonbuk National University)
Peck, Jong-Hyun (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, The Research Institute of Industrial Technology, Chonbuk National University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.19, no.12, 2007 , pp. 850-856 More about this Journal
Abstract
In a supercooled or capsule type ice storage system, aqueous solution (or water) may have trouble with non-uniform dissolution though the system contributes to the simplicity of system and ecological improvement. The non-uniform dissolution increases the instability of the system because it may cause an ice blockage in pipe or cooling part. In order to observe the supercooled state, a cooling experiment was performed with pressurization to an ethylene glycol(EG) 3 mass% solution in stationary state. Also, the effect of the pressurization from 101 to 505 kPa to the dissolution of supercooled aqueous solution was measured with the dissolution time of the supercooled aqueous solution at a fixed cooling rate of brine. At results, the dissolution of supercooled point decreased as the pressure of the aqueous solution in the vessel increased. Moreover, the dissolution point increased as the heat flux for cooling increased.
Keywords
Supercooled aqueous solution; Pressurization; Supercooling degree; Cooling rate;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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