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On-line process monitoring using a robust statistics based methodology

Llanos, Claudia Elizabeth et al · Planta Piloto de Ingeniería Química · 2019

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Author / responsible party
Llanos, Claudia Elizabeth et al
Publisher
Planta Piloto de Ingeniería Química
Year
2019
ISSN
0327-0793
ISSN
0327-0793
Language
English

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Summary

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Robust Data Reconciliation strategies provide unbiasedvariable estimates in the presence of a moderate quantity of measurement grosserrors. Systematic errors which persist in time, as biases or drifts, overcome thisquantity causing the deterioration of the estimates. This also occurs due tothe presence of process leaks. The fast detection of those faults avoids theuse of biased solutions of the data reconciliation procedure, and allows toperform quick corrective actions. In this work, a methodology for leakdetection is incorporated into a robust data reconciliation procedure thatdetects and classifies systematic observation errors. The strategy makes use ofthe Robust Measurement Test, to detect outliers and leaks, and the RobustLinear Regression of the data contained in a moving window to distinguish betweenbiases and drifts. The methodology is applied for two benchmarks extracted fromthe literature. Results highlight the performance of the proposed strategy. Fil: Llanos, Claudia Elizabeth. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina Fil: Chávez Galletti, Roberto Javier. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina

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APA 7

Llanos, C. E. E. A. (2019). On-line process monitoring using a robust statistics based methodology. http://hdl.handle.net/11336/108895

MLA

Llanos, Claudia Elizabeth et al. "On-line process monitoring using a robust statistics based methodology." 2019. http://hdl.handle.net/11336/108895.

Chicago

Llanos, Claudia Elizabeth et al. 2019. "On-line process monitoring using a robust statistics based methodology.". http://hdl.handle.net/11336/108895.

Harvard

Llanos, C. E. E. A. 2019, On-line process monitoring using a robust statistics based methodology, Planta Piloto de Ingeniería Química, available at: http://hdl.handle.net/11336/108895 [Accessed 7 Aug. 2026].

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Title
On-line process monitoring using a robust statistics based methodology
Author / contributors
Llanos, Claudia Elizabeth et al
Publisher
Planta Piloto de Ingeniería Química
Publication year
2019
ISSN
0327-0793
ISSN
0327-0793
Language
English

Subjects

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MEASUREMENT ERRORS; LEAK DETECTION; ROBUST DATA RECONCILIATION; https://purl.org/becyt/ford/2.4; https://purl.org/becyt/ford/2
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