Single-loop control (i.e., a control loop with one input and one output) ... (There are some exceptions-fired heater controls often use burner pressure as a substitute for fuel gas flow to control ...

A change to the control valve output of a gas flow control PID will see an almost immediate change to the Process Variable. This PID loop will need a lower gain and higher integral setting (or higher ...

November 15, 2008 (Vol. 28, No. 20) Embedding Methodology in the Control System of a Plant Increases Its Utility Biotech processes should be standardized as much as possible to produce optimum ...

Cullen Langford, PE, instrumention specialist / [email protected] ...

Fig. 6 shows the relationship between along-wellbore ratio of the pressure-drop for the multiphase flow and the pressure drop experienced by single-phase flow for different gas-liquid ratios.

Bronkhorst Cori-Tech has released a new model in its series of Coriolis mass flow meters and controllers for accurate measurement and control of very low flow rates: the mini Cori-Flow. This compact ...

• Case No. 1. Flow rate was 823 b/d, with 43% bs&w and GOR of 1,244 scf/bbl (Table 2). Fig. 2a shows the separator operating level before and after putting the feed control valve in service.