Equipment condition and performance monitoring using comprehensive process model based upon mass and energy conservation (Invensys)

CATEGORY: PERFORMANCE MONITORING 
Equipment condition and performance monitoring using comprehensive process model based upon mass and energy conservation (Invensys)

Type	Patent
Inventor	Terrill L. Greenlee
URL	Free Full Text Source:  http://www.google.com/patents/US8781635
Assignee	Invensys Systems, Inc.
Patent Number	US8781635 B2
Issue Date	Jul 15, 2014
Abstract	A method and apparatus capable of monitoring performance of a process and of the condition of equipment units effecting such process is disclosed. A process model predicated upon mass and energy balancing is developed on the basis of a plurality of generally nonlinear models of the equipment units. At least one or more of such equipment models are characterized by one or more adjustable maintenance parameters. Data relating to mass and energy transfer within the process is collected and is reconciled with the mass and energy characteristics of the process predicted by the model. The condition of the equipment units and process performance may then be inferred by monitoring the values of the maintenance parameters over successive data reconciliation operations.