Title: Cost effective combined axial fan and throttling valve control of ventilation rate
Authors: Taylor, CJ
Leigh, PA
Chotai, A
Young, PC
Vranken, Erik
Berckmans, Daniel #
Issue Date: Sep-2004
Publisher: Iee-inst elec eng
Series Title: Iee proceedings-control theory and applications vol:151 issue:5 pages:577-584
Abstract: The proportional-integral-plus (PIP) control of ventilation rate in mechanically ventilated agricultural buildings is investigated. In particular, a fan and throttling valve control system fora 22 m(3) test chamber that represents a section of a livestock building or glasshouse that is housed at the Katholieke Universiteit Leuven is presented. The throttling valve is used to restrict the airflow at the outlet, thereby generating a higher static pressure difference over the control fan. In contrast with previous approaches, however, the throttling valve is directly used as a second control actuator, utilising airflow from either the axial fan or natural ventilation. The proposed combined fan/valve configuration is compared with a commercially available proportional-integral-derivative- based controller and a previously developed scheduled PIP design, yielding a reduction in power consumption in both cases of up to 45%.
ISSN: 1350-2379
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division M3-BIORES: Measure, Model & Manage Bioresponses (-)
# (joint) last author

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