Flow Study
Benefits of a TRACERCO Diagnostics™ Flow Study
- Investigation of flow distributions in networks
- Monitor process changes over start-up/shutdown cycle
- Determine leakage past relief valves or block valves
- Determine distribution in piping networks like fin fans
- Perform mass/flow relationships through flare lines or piping
systems
TRACERCO Diagnostics™ Flow study technology is used to identify
fugitive flow in a flare system by injecting a tracer material into the
flare line and placing sensitive detection devices externally on the piping
to monitor the tracer’s position and movement.
Flow rate measurements through sections of the flare piping system are
performed in strategic locations to detect and isolate the sources of
fugitive flow. Measurement of the injected pulse through the system is
made using a combination of either external detectors or sampling with
no affect on process operations. The two techniques that have been found
to be particularly applicable to studies on process plants are the “pulse
velocity” and “dilution” techniques. A Tracerco engineer
will study the process system to determine the most suitable injection
and sample points in order that optimum measurements can be made.
Once it is determined which unit(s) are contributing to the flare flow,
each PSV (pressure sensitive valve), block valve or relief valve can also
be individually tested to determine which is leaking. As well as isolating
where the flare flow is coming from Tracerco’s flow measuring capability
also determines the volume, and thus the value of the material being lost
to the flare. Follow-up flow studies can be performed after repairs are
made and fouled equipment is cleaned.
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