process variable


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process variable

[′prä‚ses ‚ver·ē·ə·bəl]
(chemical engineering)
Any of those varying operational and physical conditions associated with a chemical processing operation, such as temperature, pressure, flowrate, density, pH, viscosity, or chemical composition.
References in periodicals archive ?
Thus, we explicitly aimed to provide a broad perspective that incorporates the four different process variables in decision making, with a strong focus on the relationships and the interplay among these processes.
Dual four-digit LED displays for setpoint and process variables.
Model predictive" means that the controller predicts its future manipulations to ensure that process variables remain within pre-defined constraints.
Simple empirical programs only can model simple, repeatable processes where the process variables only change slightly.
Another way to look at process phenomena is with a "run chart," which plots the value of a particular process variable over numerous shots.
Sources Sought:Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
These factors depend on the composition of the material and process variables like draw ratio.
Some of these variables can be considered process variables because they are related to the learners' processions through learning tasks.
MetaCause identifies the relationship (positive, negative or no relationship) and strength of relationship between process variables and product specifications," Roshan said.
Live process variables are always conveniently displayed during programming and calibration routines.

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