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Design and retrofit of sensor networks in process plants

✍ Scribed by Miguel J. Bagajewicz

Publisher
American Institute of Chemical Engineers
Year
1997
Tongue
English
Weight
616 KB
Volume
43
Category
Article
ISSN
0001-1541

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✦ Synopsis

Abstract

A novel procedure to find cost‐optimal sensor networks is proposed. Cost is minimized subject to qualifying constraints that are related to certain requirements of data reconciliation. One basic qualifying constraint is a desired level of precision of reconciled values for a selected set of variables. Since precision requirements lead to multiple solutions, other qualifying constraints are proposed. These constraints are availability, resilience, and error detectability. Definitions for these terms are given and their impact on the results is presented.

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✍ Yaqoob Ali; Shankar Narasimhan πŸ“‚ Article πŸ“… 1993 πŸ› American Institute of Chemical Engineers 🌐 English βš– 841 KB

## A new concept of reliability of estimation of variables is introduced which relates to the estimability of variables in the presence of sensor failures. Based on this concept, a method for optimal location of sensors in apureflowprocess is developed. A graph-theoretic algorithm, SENNET, develop