Control Systems Part 3: Rules for Tuning Loops Prior to Startup

This is part two of the GATEKEEPER series on control systems tuning. To effectively tune a control loop, there needs to be an understanding about the dynamics of the system.

This series of GATEKEEPERS will provide methods for using readily available process design data for determining effective tuning parameters before startup.

Chokes and control valves are often oversized even for normal operation, and are sometimes far too large to provide adequate control of low flow rates at initial startup.