1. Establishing Multivariate Specification Regions for Raw Materials using SMB-PLS
- Author
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Julien Lauzon-Gauthier, Kamran Azari, Carl Duchesne, and Jayson Tessier
- Subjects
Engineering ,Multivariate statistics ,business.industry ,media_common.quotation_subject ,Process (computing) ,Raw material ,Product (business) ,Control and Systems Engineering ,Econometrics ,Process knowledge ,Quality (business) ,business ,Process engineering ,media_common - Abstract
The new Sequential Multi-block PLS algorithm is applied for establishing multivariate specification regions jointly on multiple types of raw materials. SMB-PLS distinguishes between process variations associated with raw materials from other orthogonal sources of variations such as operating policies. Combinations of raw material properties not compensated by the control schemes are clearly identified. Multivariate specifications are required for these combinations to avoid negative impact on process performance and product quality. The method was applied to an industrial aluminum smelter. Bad combinations of raw material properties were identified and validated against process knowledge.
- Published
- 2015
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