CONTROL THEORY BASICS

This article presents some of the basic concepts of control and provides a foundation from which to understand more complex control processes and algorithms later described in this module. Common terms and concepts relating to process control are defined in this section. LEARNING OBJECTIVESAfter completing this section, you will be able to:Define control loop and describe the three tasks necessary for process control to occur:• Measure• Compare• Adjust  Define the following terms:• Process variable• Setpoint• Manipulated variable• Measured variable• Error• Offset• Load disturbance• Control algorithmList at least five process variables...

Read more »

The Importance of Process Control

PROCESS... Process as used in the terms process control industry, refers to the methods of changing of refining raw materials to create end products. The raw materials, which either pass through or remain in a liquid, gaseous, or slurry (a mix of solids and liquids) state during the process, are transferred, measured, mixed, heated or cooled, filtered, stored, or handled in some other way to produce the end product. Process industries include the chemical industry, the oil and gas industry, the food and beverage industry, the pharmaceutical industry, the water treatment industry and the power industry. PROCESS CONTROL Process control refers...

Read more »

Spider System Hydraulics Control

Spider System Hydraulics Control Spider System Hydraulics Control Spider is meant here is not a family of eight-legged insects that are highly toxic and deadly if bitten by it. Spider what I mean is a system control hydraulic which require a large force or torque for stirring small pieces of wood (chips) inside the digester or Impbin according to the desired speed to achieve the desired amount of production in the process to produce pulp in our factory. Control system used is called Spider Hydraulic Control System (Hagglunds). This control system direct control of two pumps which serve to drain the oil in the system in order to increase oil...

Read more »

My Instrumentation Experience at IKPP

Hello...nice to meet you. I hope you are glad reads my article. May I introduce my self. Around year 1993, my first job is at PT.Indah Kiat Pulp & Paper Indonesia Pekanbaru Perawang mill. We are at placed at project kvaerner PM8. We have done many matters has liked instruments installation, pulled signal and power cable, termination, tube installation, setting parameter, calibrate control valve, signal test and loop test. Since this project i had learn from many article that support my job and my skill. Pulp Making-9 Any of them is "The Seven Habits of Highly Successful Control Engineers" presented by George Buckbee,P.E. In this article...

Read more »

Hello... My name is Andy. I work at IKPP Perawang mill. Our factory produces pulp and paper. The biggest factory at asia even at the world. These two tower called Pressure Diffuser, our Double Happiness tower, located in area Digester Pulp Making...

Read more »