Chemical engineering process control course

The third problem involves a gas distribution system with three consumers, S$2,$ S$1,$ and S$3.$ In this system, the incoming gas is pressurized by compressor C$1$ and enters the distribution line. The compressor is powered by a gas turbine $($T$1),$ utilizing a portion of the incoming gas. Design the control system structure for this process to achieve the following objectives:

A$.$ Ensure gas pressure at all consumption points is consistently above $500$ psi.

B$.$ Maintain the gas turbine's rotation speed within the range of $300$ to $700$ revolutions per minute.

Note: No new sensors or control valves can be added to the flowsheet.