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the effect of the particle size distribution on non-newtonian turbulent ...

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Chapter 3 Experimental Work<br />

Figure 3.2: Solids handling pump & variable speed hydraulic drive<br />

(b) Layout<br />

Page 3.3<br />

Slurry to be used for a test run is collected in a steel hopper which has a capacity 2m 3<br />

from where it is pumped through a looped circuit. Directly after <str<strong>on</strong>g>the</str<strong>on</strong>g> pump <str<strong>on</strong>g>the</str<strong>on</strong>g><br />

l50mm line splits up into an SOmm and l50mm pipeline. These two pipelines have<br />

a vertical counterflow secti<strong>on</strong> (Figure 3.3) and horiz<strong>on</strong>tal secti<strong>on</strong> (Figure 3.4), <str<strong>on</strong>g>the</str<strong>on</strong>g><br />

flow rate being measured in both downcomer secti<strong>on</strong>s by means <str<strong>on</strong>g>of</str<strong>on</strong>g> magnetic flux flow<br />

meters. The horiz<strong>on</strong>tal secti<strong>on</strong> is approximately 30m in length, with <str<strong>on</strong>g>the</str<strong>on</strong>g> return<br />

pipelines passing through an in-line heat exchanger and pneumatic diverter valve<br />

before being re-routed back into <str<strong>on</strong>g>the</str<strong>on</strong>g> hopper.

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