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지역난방 공동주택 시스템에서 Smith Predictor 제어기 적용성 연구
정상훈(Sang-Hoon Jung),문연진(Youn-Jin Moon),하재순(Jae-Sun Ha),조성환(Sung-Hwan Cho) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
It is known that the classical tuning formula for typical PID controllers in general provides unsatisfactory results for industrial plants where the time delay exceeds the dominant lag time. For this reason, alternative strategies have been studied in order to cope with this problem and the most popular scheme is the Smith Predictor(SP). In this paper, the dynamic model of a unit apartment in the district heating system ,which is the control process effected by the dead-time, is developed, and the on/off room temperature control method with the SP simulate using Matlab-Simulink. The simulation results show that the SP works effectively in outdoor temperature variation.
지역난방 시스템에서 제어방법에 따른 공급열량의 해석적 연구
김성수(Seong-Su Kim),정상훈(Sang-Hum Jung),문연진(Youn-Jin Moon),조성환(Sung-Hwan Cho),유재성(Jae-Sung Ryu) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
The theoretical simulation to predict the variation of supplying heat according to control methods of DHS(District Heating System) have been done by TRNSYS(A Transient System Simulation Program) 16. The physical system for DHS consists of primary and secondary supplying heating loop which is divided by based on heat exchanger for heating demand of building. The simulation results showed that control of secondary supplying heat had influenced more than primary supplying heat control to total energy consumption of DHS. And the outside temperature reset control of primary supplying heating loop could be reduced until about 4% overheating of each zone.
탈취필터 내 첨착활성탄의 쏠림 형태와 충전율에 따른 탈취성능에 대한 실험
도수윤(Soo Yun Doh),김관택(Gwantaek Kim),윤백(Baek Youn),김현정(Hyunjung Kim),진유성(Yu-Sung Jin),문연진(Yeon-Jin Moon),김중호(Jung-ho Kim) 대한설비공학회 2021 대한설비공학회 학술발표대회논문집 Vol.2021 No.6
Recently, interest in indoor air quality has been increasing, and purification of various harmful gases generated indoors, along with fine dust, is drawing attention as an important factor. Deodorization filters, which typically use impregnated activated carbon, are used with dust collection filters to remove these harmful gases. Plate deodorization filters using impregnated activated carbon generally consist of small cells of a certain shape, and are made by filling impregnated activated carbon in the form of small grains formed by mixing impregnated activated carbon powder and adhesive, and attaching nets on both sides. This process of charging impregnated activated carbon is usually carried out manually, and therefore, uniform charging is not achieved, which can lead to the concentration of impregnated activated carbon. In this study, the deodorization performance was evaluated by measuring the purification rate of the five major harmful gases (formaldehyde, acetaldehyde, acetic acid, ammonia, and toluene) through experiments on various forms of impregnated activated carbon non-uniform charging forms. We also measure the change in deodorization performance with changes in various charge based on the charge of 220g (100% charge rate). Therefore, the results of this study are considered to be an important reference for establishing criteria for managing processes and quality in the manufacture of deodorized filters in the future by considering the phenomenon of non-uniform charging and the impact of charging rates on performance.