| Title |
Variation of Pressure Loss and IPF Flowing Ice Slurry in Straight Tube Inclined to Various Angle |
| Keywords |
Ice slurry ; 아이스슬러리 ; Straight tube ; 직관 ; Inclined tube ; 경사관 ; Pressure loss ; 압력손실 ; IPF ; 빙충전율 |
| Abstract |
Recently, the ice storage system using ice slurry has been used increasingly since it has been introduced where the rapid cooling load change is required. Because it overcomes a decrease of the melting performance and an increase of the thermal resistance on the ice layer in static ice thermal storage system.
This study is performed to understand the effects of transporting ice slurry through horizontal, vertical and inclined tubes(30°, 45°). It used propylene glycol-water solution and ice particles(diameter of about 2mm) in this experiment. The experiments were carried out under various conditions, with concentration of water solution ranging from 0 to 20wt%, and velocity of water solution at the entry ranging from 1.5 to 2.5m/s.
The results were as follows: Regarding the angle of inclined tube, the highest pressure loss was measured for vertical tube and the pressure loss for 45°, 30°, horizontal straight tubes were lower successively. The lowest pressure loss in these tubes was measured at velocity of 2.0～2.5m/s and concentration of 10wt%. The outlet IPF was likewise stable in these ranges. |