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Particle Technology

2LM: Pipeline Transportation Of Particle-Laden Liquids

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2LM: Pipeline Transportation Of Particle-Laden Liquids

Particle-laden liquids are found in many places. The food industry, water supply and process industries all depend on the safe pumping of liquids of this type in pipes. In fact, there are very few instances of liquids in which particles are not present in one form or another.

If you are piping particulate liquids, your primary concern is to make sure that all of the particles arrive at the destination and do not block the pipe. You can always pump the liquids at high velocity to ensure that particles stay in suspension but this is an expensive way to deal with the problem: the power consumed by the pump is approximately proportional to the fluid velocity to the power of three. In other words, if you could reduce the velocity by half you would require only one eighth, 12.5 %, of the original power into your pump. So, it is important to know how well the particles are being transported, and of course the minimum velocity required to keep them in suspension.


Apart from pinpointing the notional interface and the layer velocities, the model also yields many other useful predictions, for example holdup (Λ), the velocity deficit of the solids burden.

Learn More About 2LM: Pipeline Transportation Of Particle-Laden Liquids

See Jones, T.F., (2014), Holdup datasets predict critical deposition velocities using a modification of the two-layer model, Hydrotransport 19, Golden, Colorado, USA, 24-26 September.

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