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Tower Stationary Monitoring
 TRU-SCAN®
Stationary Monitoring is a test that has been developed to understand
flow dynamics at a particular point within the process system as a function
of time. Examples of its application include the determination of the
incipient flood point, operational surges in distillation towers, monitoring
and calibration of level instruments and liquid entrainment studies. For
some complicated applications, several stationary monitoring points on
a tower are needed to observe the dynamic changes at different locations
simultaneously.
 This example shows the stationary monitoring results from a capacity
test. A TRU-SCAN® showed the top 2 trays flooding in this tower. To
maintain operation at maximum rates the customer wanted to establish the
operating limits before flooding. While monitoring the tray that floods,
operations went through a sequence of steps to increase rates. The monitoring
allowed operations to establish the maximum operating rates without flooding.
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