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Cost effective combined axial fan and throttling valve control of ventilation rate

Taylor, C. James and Leigh, P. and Chotai, Arun and Young, Peter C. and Vranken, E. and Berckmans, D. (2004) Cost effective combined axial fan and throttling valve control of ventilation rate. IEE Proceedings-Control Theory and Applications, 151 (5). pp. 577-584. ISSN 1350-2379

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    Abstract

    This paper is concerned with Proportional-Integral-Plus (PIP) control of ventilation rate in mechanically ventilated agricultural buildings. In particular, it develops a unique fan and throttling valve control system for a 22m3 test chamber, representing a section of a livestock building or glasshouse, at the Katholieke Universiteit Leuven. Here, the throttling valve is employed to restrict airflow at the outlet, so generating a higher static pressure difference over the control fan. In contrast with previous approaches, however, the throttling valve is directly employed as a second control actuator, utilising airflow from either the axial fan or natural ventilation. The new combined fan/valve configuration is compared with a commercially available PID-based controller and a previously developed scheduled PIP design, yielding a reduction in power consumption in both cases of up to 45%.

    Item Type: Article
    Journal or Publication Title: IEE Proceedings-Control Theory and Applications
    Uncontrolled Keywords: Agriculture ; identification ; control system design ; model-based control ; PIP control ; PID control
    Subjects: T Technology > TA Engineering (General). Civil engineering (General)
    Departments: Faculty of Science and Technology > Engineering
    Faculty of Science and Technology > Lancaster Environment Centre
    ID Code: 33456
    Deposited By: Dr C. James Taylor (Engineering)
    Deposited On: 19 May 2010 09:22
    Refereed?: Yes
    Published?: Published
    Last Modified: 24 Jan 2014 05:18
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/33456

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