Description:
This is a visible and easy to understand water flow control process. Water stored in the sump tank is pumped through a parallel pipe arrangement mounted on the lid of the tank and returns to the tank via two outlets, a software switched divert valve prior to the flow meter and a manually operated variable valve after the flow meter. Both outlets also incorporate interchangeable orifices to vary their characteristics. The demonstrates flow control by varying pump speed. Repeatable disturbances can be implemented using the solenoid valve and a wide range of different control investigations can be implemented using the interchangeable orifices and adjustable valves. This is an ideal system for demonstrating the onset of instability, the importance of filtering on the sensor output, and the trade-off between filter weighting and proportional gain on stability.
Specification
- A flow control process trainer, comprising:
- 0-4l/min flowmeter, mounted above 8 litre sump tank
- Two discharge ports, one with remote controlled solenoid valve and one with manually controlled valve.
- Four interchangeable orifices for use with the discharge valves
- Variable speed submersible centrifugal pump
- USB interface to PC, plus connection terminals for interfacing to external controllers
- Supplied with educational software for PID control as well as data logging.
