Override Control (Is it?)

This discussion came from my self question. If then the process engineering require the outlet of hot liquid (the red one) shall be controlled also with requirement temperature outlet hot liquid TT-2 shall not less than T2 degC. And the first controlled temperature cold liquid (blue) TT-1 shall be remain kept in original designated set point T1 degC, [...]

Cascade Loop Control

Saya beberapa kali mendapatkan request untuk menuliskan short artikel tentang Cascade Loop Control. Ini adalah issue yang sudah lama sekali pembahasannya di forum diskusi id-instrumentation@yahoogroups.com. Lagi pula lima tahun lalu di laboratorium sistem instrumentasi program studi teknik fisika itb hal ini sering menjadi pembahasan dalam diskusi di antara rekan-rekan laboratorium. Semoga tulisannya tidak membosankan.
Cascade bukan [...]

Production Separator Control System

“Produced wellhead fluids are complex mixtures of different compound of hydrogen and carbon, all with different densities, vapor pressure, and other physical characteristic. The velocity of the gas carries liquid droplets, and the liquid carries gas bubbles. The physical separation of these phases is one of the basic operation in the production, processing, and treatment [...]

Feedforward Loop Control

A Common Mistake or Missunderstanding

Many experience people taught me about feedforward control was figure out on above loop arrangement picture. They simply explained feedforward means the sensor or transmitter was installed on the upstream of process and the control valve was installed on the downstream of process. I am worry that many experience people have [...]