An analysis of the use of electrical power measurements for process control in large-scale stirred vessels

Authors
Hjorth, S Karlsson, L Friberg, P Boon, L
Citation
S. Hjorth et al., An analysis of the use of electrical power measurements for process control in large-scale stirred vessels, CAN J CH EN, 78(6), 2000, pp. 1127-1132
Citations number
9
Categorie Soggetti
Chemical Engineering
Journal title
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
ISSN journal
00084034 → ACNP
Volume
78
Issue
6
Year of publication
2000
Pages
1127 - 1132
Database
ISI
SICI code
0008-4034(200012)78:6<1127:AAOTUO>2.0.ZU;2-2
Abstract
The mechanical power that is transferred to a liquid via the shaft of an ag itator is obtained from a measurement of the electrical power flowing into the electric motor within an accuracy of less than 5%. The accuracy obtaine d is limited by the calibration procedure. As the implementation of an elec tric power measurement is both simple and comparatively inexpensive, the te chnique is suitable for a continuous monitoring of the power used by agitat ors in the process industries.