Experimental study on flow characteristics of ice slurry through a T-junction Part I: Laminar flow

Kumano, Hiroyuki; Kobayashi, Takuya; Makino, Yuki; Morimoto, Takashi; Asaoka, Tatsunori

doi:10.1016/j.ijrefrig.2020.03.017

Cited by 8 publications

(2 citation statements)

References 14 publications

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“…On the other hand, several ice slurry research pioneers have reported the variation of pressure drop as a function of ice fraction, flow velocity, flow direction (upward, downward, and horizontal), additives at different initial concentrations, and particle diameters based on experimental data. ,,− Additionally, extensive experiments have measured the pressure drops of ice slurry flows in typical components of pipeline systems including a T-junction, , pipe tees, flow dividers, a helically coiled pipe, pipe sudden contractions, pipe sudden expansions, pumps, and valves Figure a and b presents the pressure drops across a heat exchanger (with an equivalent hydraulic diameter of 24 mm) measured in experiments where ice slurries with various ice fractions flow at different speeds .…”

Section: Mechanism Of Ice Piggingmentioning

confidence: 99%

“…Moreover, a CFD-PBM coupled model is employed to reveal the influence of ice particle kinetics on ice particle size distribution (PSD) in horizontal 90° elbow pipe . Similarly, studies on ice slurry pressure drop in different pipeline structures ,,, also provide methods for avoiding accumulation and stratification of ice slurries, which can guide the safety design and operation of ice pigging.…”

Section: Mechanism Of Ice Piggingmentioning

confidence: 99%

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Review of Ice Slurry Pigging Techniques for the Water Supply Industry: Engineering Design and Application

Huang

Dong

et al. 2022

ACS EST Eng.

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It has been established that treated water can be easily impacted when delivered through drinking water distribution systems (DWDS), with issues such as discoloration, metal ion release, and bacterial regrowth. As part of good practice, water companies should take reasonable steps to prevent contamination from DWDS. Because traditional maintenance strategies have limitations, ice pigging can be employed as a powerful pipeline cleaning technique with the advantages of high cleaning efficiency, environmentally friendliness, not sticking, and cost effectiveness in some scenarios. This study aims to provide a review of the state-of-the-art techniques of ice pigging for the water supply industry. After providing the mechanism of ice pigging, the generation and storage of ice slurries and ice fraction measurement were investigated. The critical aspects during the ice pigging process concerning the flow pattern, pressure drop, and survival distance of ice slurries were also discussed. In addition, this critical review integrated scattered knowledge on engineering design to improve the performance of ice pigging. Three important factors in practical engineering include ice slurry flow velocity, ice fraction, and ice pig length. Finally, informed by in-depth analysis of suitable applications and underlying mechanisms, ice pigging is expected to further enhance fouling removal capacity and enable better water quality, reduced service interruptions, and have fewer customer complaints.

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