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Influence of Velocity on Pressure Drop of Flowing Ice Slurry in Elbow and its continued Inclined Tube  

Park Ki-Won (Department of Refrigeration Engineering, Yosu National University)
Kim Kyu-Mok (Technical Research Center, Dawon AC Co.)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.17, no.7, 2005 , pp. 635-641 More about this Journal
Abstract
This study experimented to understand the effects of transporting ice slurry through elbow and inclined tube. And at this experiment it used propylene glycol-water solution and a diameter of about 2mm ice particle. The experiments were carried out under various conditions, with velocity of water solution at the entry ranging from 1.0 to 3.5 w/s and elbows and inclined tubes of 4 kinds angle with $30^{\circ},\;45^{\circ},\;90^{\circ}\;and\;180^{\circ}$. The pressure drop between the tube entry and exit were measured. According to angle of bending, the highest pressure drop was measured at $30^{\circ}$ elbow and the lowest pressure drop was measured at $90^{\circ}$ elbow, and there are only a little differences of pressure drop between $45^{\circ}$ elbow and $180^{\circ}$ elbow. According to angle of inclined tube, the highest pressure drop was measured at $90^{\circ}$ inclined tube and the pressure drop at $45^{\circ},\;30^{\circ},\;180^{\circ}$ inclined tubes were lower successively. The lowest pressure drop in elbows and inclined tubes was measured at velocity of $2.0\~2.5$ m/s and concentration of $10\;wt\%$.
Keywords
Elbow; Inclined tube; Flowing velocity; Pressure drop;
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  • Reference
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