Dynamics mode for the GG1 example simulation

To protect the compressor adequately from surge, the discharged flow must be restored very quickly.

For this reason, we keep the anti-surge controller (AS1) connected to the anti-surge control valve for the hot recycle (FV2), which is closest to the compressor (on HDR1).

However, we also consider connecting the anti-surge controller to the anti-surge control valve for the cold recycle (FV1), which is downstream of cooler E1, to determine if this control setup can suitably control the suction temperature and thereby prevent the compressor outlet temperature from rising too high.

The purpose of Dynamics mode is to accomplish the following:

• Validate the surge control response for the upset scenarios.

• Validate the size of the control valves and pipes by confirming they are adequate for the motor trip upset scenario.

• Compare the maximum outlet temperature for the compressor for the hot recycle anti-surge valve to the maximum outlet temperature for the compressor for the cold recycle anti-surge valve.