Ice Slurry Making Characteristics of the Horizontal Screw Type Ice Slurry Maker

Title
Ice Slurry Making Characteristics of the Horizontal Screw Type Ice Slurry Maker
Authors
이상훈유호선신유환이윤표
Keywords
Ice Slurry Maker; IPF; Visualization; District Cooling; Supercooling; 아이스슬러리 제빙기; 빙체적율; 가시화; 지역냉방; 과냉각
Issue Date
2011-07
Publisher
Proceedings of International Conference on Air-Conditioning & Refrigeration 2011
Citation
, 93-98
Abstract
A horizontal screw type ice slurry maker was developed. In order to investigate ice slurry formation in the ice slurry maker, visualization was performed. Using a refrigerator, which used R134a as refrigerant, heat transfer coefficient and IPF (Ice Packing Factor) were measured. Through the visualization, it was found that, when PG (Propylene Glycol) 7% solution passed through an ice slurry making tube, ice particles began to be formed and that ice particles thus formed were pushed, in the form of ice slurry, out of the ice slurry making tube by the rotation of the screw. The overall heat transfer coefficient before the ice slurry formation was 5.185 kW/㎡°C, and it increased to 9.716 kW/m2°C at the beginning of ice particle formation, and dropped to 3.858 kW/㎡°C, showing a somewhat steady low value afterwards. The horizontal screw type ice slurry maker was able to generate the ice slurry of 40% IPF.
URI
http://pubs.kist.re.kr/handle/201004/40015
Appears in Collections:
KIST Publication > Conference Paper
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