| Title |
Effect on Ice Slurry Flowing in the Elbow of Various Angle |
| Keywords |
Ice slurry ; 아이스슬러리 ; Elbow ; 곡관부 ; Pressure loss ; 압력손실 ; IPF ; 빙충전율 |
| Abstract |
Recently, the government introduced the thermal storage system for reducing the electric power load. Especially, the ice slurry type has gained lots of interest due to its good heat transfer and flowing characteristics.
This study was performed to understand the effects of transporting ice slurry through elbows of various angle. Propylene glycol water solution was used and about 2mm ice particles were circulated. The experiments were carried out under various conditions, such as concentration and velocity of water solution ranging between 0～20wt%, 1.5～2.5m/s, respectively. And elbows with 4 different angles of 30°, 45°, 90°, 180°. The differential pressure and IPF (ice packing factor) between the pipe entry and exit were measured.
The tendency of pressure loss and outlet IPF in elbow is that the pressure loss was reduced as concentration and flow velocity of water solution is increased, and low value appeared at 10wt% and 2.5m/s. The variation of outlet IPF was compared with the inlet IPF in the range of ±20%. |