Читать книгу Automation of Water Resource Recovery Facilities - Water Environment Federation - Страница 174

Design engineers should identify the setpoints for control loops or operations such as pressure setpoints for compressors, chemical dosing rates, liquid and gas flows, tank-fill levels, sump-level cycles, and high-level controls such as sludge retention times, dissolved oxygen setpoints, and bypass triggers. In addition to listing the setpoints, the narrative should describe how critical setpoints were assigned.