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The data fall along a nearly-linear path with a spread of about 0.2 mL/sec that appears to fall off around 1.1 mL/sec outflow. There is relatively little data collected at the heigher flowrates, though, so this conclusion is not very concrete. It is important to note that the data clusters very strongly around the theoretical performance for the system using head loss equations for both major and minor losses in the FC outflow tubing (graphed as the dashed line).
To make sure that the system was tested in the laminar flow range, the following Reynold's Number analysis was performed. As can be seen in the graph, the system should not have approached the turbulent transition during testing with head losses of 0-20 cm.
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The MathCAD program (CDFall08LeverT) used to analyze this data can be found attached here.