Study on ice storing characteristics in dynamic-type ice storage system by using supercooled water

Autor: Naoki Aizawa, Masayuki Tanino, Yoshiyuki Kozawa
Rok vydání: 2005
Předmět:
Zdroj: International Journal of Refrigeration. 28:73-82
ISSN: 0140-7007
DOI: 10.1016/j.ijrefrig.2004.07.017
Popis: For deploying the dynamic-type ice storage system to district heating and cooling system (DHC), the effects of ice content (ice packing factor, IPF) and mass flow rate of supplying ice-slurry on the ice storing characteristics in a tank were investigated both experimentally and analytically. By raising IPF and reducing mass flow rate of supplying ice-slurry, the ice-rich layer was hard spreading horizontally in the tank. The overall porosity of the ice-rich layer was converging to the value of 0.8–0.9 in the ice storing process. The analytical results of the shape of the ice-rich layer agreed fairly with the experimental results, by modeling the change of water permeability in the ice-rich layer in the tank. This analytical model is considered to be applicable to the design of ice storage tanks in DHC.
Databáze: OpenAIRE