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논문 상세정보

다양한 각도로 기울어진 직관내에서 아이스슬러리 유동시 압력손실과 IPF 변화

Variation of Pressure Loss and IPF Flowing Ice Slurry in Straight Tube Inclined to Various Angle

Abstract

Recently, the ice storage system using ice slurry has been used increasingly since it has been introduced where the rapid cooling load change is required. Because it overcomes a decrease of the melting performance and an increase of the thermal resistance on the ice layer in static ice thermal storage system. This study is performed to understand the effects of transporting ice slurry through horizontal, vertical and inclined tubes ($30^{\circ},\;45^{\circ}$). It used propylene glycol-water solution and ice particles (diameter of about 2 mm) in this experiment. The experiments were carried out under various conditions, with concentration of water solution ranging from 0 to $20wt\%$, and velocity of water solution at the entry ranging from 1.5 to 2.5 m/s. The results were as follows: Regarding the angle of inclined tube, the highest pressure loss was measured for vertical tube and the pressure loss for $45^{\circ},\;30^{\circ}$, horizontal straight tubes were lower successively. The lowest pressure loss in these tubes was measured at velocity of $2.0{\sim}2.5m/s$ and concentration of $10wt\%$. The outlet IPF was likewise stable in these ranges.

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참고문헌 (11)

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  2. Takahashi, H., Masuyama, T and Kawashima, T, 1992, Experimental study on flow characteristics of ice-water slurries in a horizontal pipe, Japanese J. Resource . Material,Vol. 108, No.5, pp.357-363 
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  8. Lee, D. W., Yoon, C.1. and Yoon, E. S., 2002,Experimental study on flow patterns and pressure drop characteristics of ice slurry in small size pipe(l, 2), Korean J. Air-Cond,Refrig. Eng., Vol. 14, No.5, pp.385-397 
  9. Park, K W., Kim, K M., Roh, G. S. and Jeong, J. C., 2003, Flowing characteristics of iceslurry in elbows with various angle, summer annual conference, SAREK, p. 224 
  10. Kitahara, T. and Shirakashi, M., 1993, Hydraulic conveying of snow and ice, Setpyo,Vol. 55, No.4, pp.307-315 
  11. Park, K W., Choi, H. W., Roh, G. S. and Jeong, J. C., 2003, Experimental study on transformation of IPF and pressure drop in branches with ice slurry, J.Korean Soc.Marine Eng., Vol. 27, No.2, pp.272-279 

이 논문을 인용한 문헌 (1)

  1. Choi, Yong-Don ; Kang, Yong-Tae ; Kim, Nae-Hyun ; Kim, Man-Hoe ; Park, Kyoung-Kuhn ; Park, Byung-Yoon ; Park, Jin-Chul ; Hong, Hi-Ki 2007. "Recent Progress in Air Conditioning and Refrigeration Research - A Review of Papers Published in the Korean Journal of Air-Conditioning and Refrigeration Engineering in 2004 and 2005 -" 설비공학논문집 = Korean journal of air-conditioning and refrigeration engineering, 19(1): 94~131 

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