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Measurement of the Ice Packing Factor of an Aqueous Solution Using the Index of Refraction  

Peck Jong-Hyeon (Korea Institute of Industrial Technology)
Chung Dong-Yeol (Korea Institute of Industrial Technology)
Kang Chaedong (Department of Mechanical Engineering, Chonbuk University)
Hong Hiki (School of Mechanical and Industrial System Engineering, KyungHee University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.17, no.11, 2005 , pp. 1088-1094 More about this Journal
Abstract
In the present paper, a new method is proposed for the measurement of the ice packing factor (IPF) of an ice slurry using the index of refraction. The purpose of the new method is to improve the resolution of the measurement and to increase its resistance to electric noise as compared to the standard IPF measurement technique that relies on measurement of the freezing temperature. These two methods are similar in that they both obtain a concentration of aqueous solution from measured physical quantities and calculate the IPF using a relation between concentration and IPF. We experimented and compared the two methods, whose results were also compared with results from the calorimeter method obtaining the IPF directly They are in good agreement (within $5\%$), which demonstrates the validity of the newly proposed method.
Keywords
Index of refraction; Ice slurry; Freezing point; Con-centration; Calorimeter method; IPF;
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