(Department of Mechanical Engineering, Sejong University)
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(Building Energy Research Center, Korea Institute of Energy Research)
;
(Building Energy Research Center, Korea Institute of Energy Research)
;
(Building Energy Research Center, Korea Institute of Energy Research)
;
(세종대학교 기계공학과)
;
(한국에너지기술연구원 친환경건물연구센터)
;
(한국에너지기술연구원 친환경건물연구센터)
;
(한국에너지기술연구원 친환경건물연구센터)
;
The present study has been conducted to tune a PID controller for large thermal systems such as a thermal environment chamber. In spite of large thermal mass of the thermal chamber under test, its response delay time was found to be negligible mainly due to high air recirculation rate. In general, heating and cooling capacities tend to be small compared the size of a thermal environment chamber, which leads to long transient periods of one hour or so. In the study, a PI tuning method is suggested which makes system responses faster while reducing overshoots and hunting by utilizing efficiently proportional band of actuators.