Unknown input observer to estimate slurry rheological properties

Diego A. Munoz, C. Jenny L. Diaz, Hernan Alvarez

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    1 Scopus citations

    Abstract

    This work presents the development of a unknown input observer for on-line estimation of density and viscosity of a mineral slurry flowing through a pipes and fittings assembly (PFA). A phenomenological based semi-physical model (PBSM) is developed based on the conservation principle applied to mass and momentum transfer. Model equations include variables directly linked with density and viscosity of mineral slurries through frictional losses considerations. The theory for state observers for processes with unknown inputs was used to develop the observer for estimating those properties of a mineral slurry from the mentioned PBSM.

    Original languageEnglish
    Title of host publication2017 IEEE 3rd Colombian Conference on Automatic Control, CCAC 2017 - Conference Proceedings
    EditorsEugenio Yime, Diego Patino
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages1-6
    Number of pages6
    ISBN (Electronic)9781538603987
    DOIs
    StatePublished - 30 Jan 2018
    Event3rd IEEE Colombian Conference on Automatic Control, CCAC 2017 - Cartagena, Colombia
    Duration: 18 Oct 201720 Oct 2017

    Publication series

    Name2017 IEEE 3rd Colombian Conference on Automatic Control, CCAC 2017 - Conference Proceedings
    Volume2018-January

    Conference

    Conference3rd IEEE Colombian Conference on Automatic Control, CCAC 2017
    Country/TerritoryColombia
    CityCartagena
    Period18/10/1720/10/17

    Bibliographical note

    Publisher Copyright:
    © 2017 IEEE.

    Keywords

    • flow through pipes
    • non-Newtonian fluids
    • phenomenological based semi-physical model
    • soft-sensor
    • unknown input observer

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