Print this pageControl System Design
Design Stage
Traditional steady state process design techniques allow designers to determine set points and to explore the overall range ability of the system. But operating experience shows that dynamic operations are the most frequent cause of unplanned shutdowns and those incidents that cause pollution, health and safety problems. These dynamic events can be simple changes in flowrate, turndown, start-up and shutdown.
Determining the control system strategy and then the design of the control system can only be successfully achieved by using dynamic simulation techniques. The design can be prepared and then tested using simulation, so that there are no hold-ups and no hazards that have been ignored.
Operating Systems
In an increasingly mature industry many systems are being used outside of their initial design basis. We are currently seeing that control systems need to be revised and modified to fully cope with the new operating conditions.
When this isn’t done the frequency of unplanned shutdowns and the loss of production increases.
Less severe problems such as increased wear, vibration and noise can also occur that are costly if left unattended.
