Control valves and process variability

Control valves and process variability

A theoretical analysis is developed to explain some experimental results for a flow loop from the literature. Process variability is shown to be dependent on the disturbance or noise parameters, the closed loop time constant, the loop dead time and the control valve dead band. The results can be ext...

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Veröffentlicht in:ISA transactions 2000-01, Vol.39 (2), p.265-271
1. Verfasser: Wilton, Stephen R.
Format: Artikel
Sprache:eng
Schlagworte:
Control valve
Dead band
Dead time
Noise
Process variability
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Beschreibung
Zusammenfassung:A theoretical analysis is developed to explain some experimental results for a flow loop from the literature. Process variability is shown to be dependent on the disturbance or noise parameters, the closed loop time constant, the loop dead time and the control valve dead band. The results can be extended to other process variables.
ISSN:0019-0578
1879-2022
DOI:10.1016/S0019-0578(00)00002-1