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

Chapter 3 Experimental Work Page 3.24
is allowed to flow through <strong>the</strong> system for sufficient time so as to allow air in
<strong>the</strong> system to escape.
3. The DPT is calibrated and slurry relative density tests performed.
4. The data logging programme is loaded and initialised.
5. The desired flow rate for a test is achieved by controlling <strong>the</strong> pump speed.
The data logging routine is started and <strong>the</strong> magnetic flow meter and DPT
outputs logged for three to five minutes (Sive, 1988). Check for drift.
The calibration <strong>of</strong> <strong>the</strong> magnetic flow meter is performed during a test run using timed weigh
test samples at different time intervals.
A test is completed by repeating <strong>the</strong> run at different pump speeds and <strong>the</strong> data collected is
<strong>the</strong>n processed.
When a test is performed on <strong>the</strong> Mini Rig, slurry continuously empties into <strong>the</strong> weigh tank
and timed weigh test samples are taken at intervals during <strong>the</strong> test for <strong>the</strong> calibration <strong>of</strong> <strong>the</strong>
magnetic flow meter.
After a test set has been completed a slurry relative density test is performed again to ensure
that <strong>the</strong> slurry density has remained constant.
3.9 CONCLUSIONS
The test apparatus used for <strong>the</strong> experimental investigation has been fully described and <strong>the</strong>
calibration and test procedures to enable <strong>the</strong> collection <strong>of</strong> accurate pipeline data have been
presented.
The test results <strong>of</strong> <strong>the</strong> non-Newtonian slurries that were tested using <strong>the</strong> apparatus and testing
Jrocedures are presented in Appendix A. The results are reviewed in Chapter 4 and
Jiscussion arising from <strong>the</strong> results is presented in Chapter 5.