کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
689618 889622 2011 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Suboptimal flowrate estimators and their application to the design of measurement strategies
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Suboptimal flowrate estimators and their application to the design of measurement strategies
چکیده انگلیسی

In mineral or metallurgical processing plants, it is a common practice to analyze physical properties or chemical content of the flowing material. However, only a few strategic flowrates, such as global plant or specific process unit feed flowrates, are usually measured. Other flowrates must then be estimated using data reconciliation or suboptimal direct estimation methods. Despite the optimality of data reconciliation, direct methods are still widely used in the industry because of their simplicity. Typical applications of suboptimal methods are to provide reliable estimates for data reconciliation algorithm initialization, support the selection of components to be analyzed, and to detect faults prior mass balancing calculations. Falling into the category of suboptimal methods are the minimal estimability (generalization of the classical n-product formula), ordinary regression, and node imbalance methods. The objectives of the paper are to review these methods under a unified approach, to compare their performance in terms of estimated flowrate variance, and to propose a systematic method to design measurement strategies maximizing the performance of flowrates estimation. The concepts are illustrated using both simulated and real plant data from the mineral processing industry.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Process Control - Volume 21, Issue 2, February 2011, Pages 235–245
نویسندگان
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