Accepted author manuscript, 263 KB, PDF document
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Cost effective combined axial fan and throttling valve control of ventilation rate
AU - Taylor, C. James
AU - Leigh, P.
AU - Chotai, Arun
AU - Young, Peter C.
AU - Vranken, E.
AU - Berckmans, D.
PY - 2004/9
Y1 - 2004/9
N2 - 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%.
AB - 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%.
KW - Agriculture
KW - identification
KW - control system design
KW - model-based control
KW - PIP control
KW - PID control
U2 - 10.1049/ip-cta:20040753
DO - 10.1049/ip-cta:20040753
M3 - Journal article
VL - 151
SP - 577
EP - 584
JO - IEE Proceedings - Control Theory and Applications
JF - IEE Proceedings - Control Theory and Applications
SN - 1350-2379
IS - 5
ER -