Browse > Article

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

Kim Kyu-Mok (Graduate School, Yosu National University)
Park Ki-Won (Department of Refrigeration Engineering, Yosu National University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.16, no.11, 2004 , pp. 1028-1034 More about this Journal
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.
Keywords
Ice slurry; Straight tube; Inclined tube; Pressure loss; IPF;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Yanagihara, R., 1998, Evaluation of ice storage systems, Japan Asso. Refrig., Vol. 73,No. 844, pp, 58-63
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
3 Park, K W., Oh, H. K, Inaba, H., Horibe, A,Haruki, N. and Miura, H., 2001, Influence of control pressure and concentration of water solution at continuous ice making in a tube,Korean J. Air-Cond, Refrig. Eng., Vol. 13,No.2, pp. 1236-1244
4 Kim, B. S., Lee, Y. P., Yoon, S. Y. and Lee,J. H., 1997, A study on ice-slurry production by water spray, Korean J. Air-Cond, Refrig. Eng., Vol. 9, No.2, pp.134-143
5 Momota, M., Imai, T, Ibamoto, T., Murakami,H., Iwamiya, M. and Yamada, H., 1997, Fundamental study on transportation system using ice/water (Part 4), SHASE annual conference,pp. 1121-1124
6 Kitahara, T. and Shirakashi, M., 1993, Hydraulic conveying of snow and ice, Setpyo,Vol. 55, No.4, pp.307-315
7 Lee, D. W., 2001, Cold heat transportation using ice slurry, Mag., SAREK, Vol.30, No.12, pp.8-14.
8 Park, Y. H., Hyun, M. T. and Lee, D. W.,2000, Experimental study on the freezing conditions in a ice-making tube using flowing sub-cooled water, Korea Soc. Energy Eng., Vol. 9, No.3, pp.178-183
9 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
10 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
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