ダイナミック型氷蓄熱を対象とした水‐油エマルションによる管内連続製氷
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概要
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Dynamic-type of ice-making cold thermal energy storage systems using water-silicone oil emulsion with an additive, (C2H50)3SiC3H6NH2, has been proposed. Two kinds of heat exchanger were examined and the performances were compared with each other. One type of heat exchanger was a spiral tube and it was immersed in a low temperature thermostatic bath. The other was coil-shaped double tube heat exchanger using two tubes. The emulsion was circulated to make ice continuously. These systems were operated under various cooling conditions (flow rates of the emulsion and brine temperatures). The effects of the tube materials (fluororesin and non-fluororesin) and thickness were also examined. Slurry ice was formed continuously without adhesion of ice to the cooling wall under certain conditions. Using the fluororesin tube prevented ice from the adhesion and it enlarged the range of the cooling conditions under which slurry ice was formed continuously. Furthermore, by making thickness of the tube thinner and increasing the heat transfer coefficient on the outside of the tube, ice was made continuously without lowering the rate of ice formation at a higher brine temperature.
- 公益社団法人 日本冷凍空調学会の論文
公益社団法人 日本冷凍空調学会 | 論文
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