A Novel Approach to Predict Violations and to Define the Reference Contaminant and Operation in Water Using Networks

Autor: Flávio S. Francisco, Fernando L.P. Pessoa, Eduardo M. Queiroz, Ewerton Emmanuel da Silva Calixto
Rok vydání: 2015
Předmět:
DOI: 10.1016/b978-0-444-63576-1.50011-x
Popis: The development of new techniques to the management of industrial water resources has become increasingly necessary in the last years. Many efforts in the field of algorithmic approaches have been made to achieve the minimum fresh water consumption. A common issue to most of those methods is the determination of a reference contaminant when dealing with processes presenting multiple contaminants. An assertive choice of it is crucial, because the calculations of all other contaminants are based on the reference contaminant and all of them require the same flow rate to meet the process constrains. Not only that, but the structure obtained based only on the reference contaminant can lead to violations of concentration limits. One of those techniques is the Water Source Diagram (WSD), which also requires a reference contaminant to deal with multiple contaminants. This work presents a novel and robust algorithm to determine the reference contaminant when applying WSD in Water Using Networks (WUN) problems. The proposed approach can also be used in conjunction with other methods based on the Water Pinch Analysis (WPA). We also present a violation prediction method that informs which contaminant violates (or may violates) the concentration limits and its respective operation. The presented results show the effectiveness and robustness of the algorithm when applied to a process plant example from the literature with four operations and three contaminants.
Databáze: OpenAIRE
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