| Title |
Effect of Pressurization and Cooling Rate on Dissolution of a Stationary Supercooled Aqueous Solution |
| Authors |
김병선(Byungseon Kim) ; 백종현(Jong-Hyun Peck) ; 홍희기(Hiki Hong) ; 강채동(Chaedong Kang) |
| Keywords |
과냉각 수용액 ; 가압 ; 과냉도 ; 냉각속도 Supercooled aqueous solution ; Pressurization ; Supercooling degree ; Cooling rate |
| 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) 3mass% solution in stationary state. Also, the effect of the pressurization from 101 to 505kPa 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 dis-solution 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. |