| Title |
Ice Slurry Formation of a Solution in a Pressurized Plate Heat Exchanger |
| Authors |
이동규 ; 김병선 ; 백종현 ; 홍희기 ; 강채동 |
| Keywords |
Ice slurry ; 아이스슬러리 ; Continuous ice formation ; 연속제빙 ; Plate heat exchanger ; 판형 열교환기 ; Pressurization ; 가압 ; Supercooling ; 과냉각 |
| Abstract |
Ice adhesion and blockage problems have been issued in continuous ice slurry making process. So we composed continuous ice slurry making device using a commercial small plate heat exchanger(PHX), and investigated character of ice formation. An experiment of ice formation was performed with an aqueous solution of ethylene glycol 7mass%. In the experiment, the effect of the pressurization on ice slurry formation during the cooling process was investigated. The pressurization test for the aqueous solution was performed by setting valves at the PHX inlet and outlet. At the results, the time of continuous ice formation increased as the pressure of the plate heat exchanger increased for cooling temperature of －5 ℃. Also continuous ice formation at the cooling temperature of －7℃ showed a possibility. It was found that the pressurization may contribute to suppress the dissolution of supercooled aqueous solution in the PHX. |