process control

Process control, a key aspect of industrial engineering, involves using systems to manage and regulate industrial processes. This is often achieved through automation, which can be categorized into fixed, programmable, and flexible automation.1

Computer process control specifically utilizes digital computers to direct manufacturing operations, particularly in continuous or semi-continuous production of materials like chemicals and petroleum. These systems measure variables such as temperature and pressure, execute optimizing strategies, and actuate devices like valves to maintain desired process conditions.1

Feedback control systems are fundamental to automation. They consist of an input (set point), the process itself, an output, sensing elements to measure the output, and a controller with actuating devices. The controller compares the measured output to the desired input and makes adjustments to minimize any difference, ensuring the process stays within the desired parameters. This allows for precise regulation and optimization of industrial operations, enhancing efficiency and safety.21