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e-시뮬레이션을 이용한 건물 환경 조절 시스템의 온라인 실시간 최적 제어
정장원(Jeong Jang-Won),박철수(Park Cheol-Soo) 한국건축친환경설비학회 2009 한국건축친환경설비학회 논문집 Vol.3 No.4
This paper aims to present a new way of real-time performance optimization of building environmental control systems (heating, cooling, ventilation, electric lighting and daylighting, etc.) by e-simulation and an optimization routine. A 'minimalistic' lumped simulation model is developed to describe the physical behavior of building systems. Based on the predicted behavior from the simulation model, an optimization routine solves for optimal control variables (e.g. supply or removal of heat, outdoor airflow rate, setting of shading device, dimming of artificial lights). The optimal control variables minimize a predetermined cost function, resulting in a constrained nonlinear minimization problem. The optimization routine as well as the simulation model are embedded in a local web server which plays a role (1) to receive sensed data from the system, (2) send activation commands to motors and control devices and (3) post the current states of the system and room environment to the web. The paper presents a brief framework to realize the aforementioned control strategy. The on-going work will include real implementation of the control architecture, which will be reported elsewhere.
정장원(Jeong Jang-Won),박철수(Park Cheol-Soo) 한국건축친환경설비학회 2010 한국건축친환경설비학회 학술발표대회 논문집 Vol.2010 No.10
Traditional building simulation tools have been developed to perform building energy analysis, energy cost calculation, etc. Most those tools(e+, esp-r, ...) handle problems on the basis of causal way, in other words, the sequential approach. Data from input to output goes through only one direction. The next generation of building simulation tools, Modelica is introduced because it is acausal in which every element in model is interacted one another realistically. In the paper, simulated data are compared in terms of two different ways for simulation tools. The former is used in MATLAB in the causal approach with a space-averaged lumped physical model introduced for modeling of the Double Skin Fa?ade (DSF). The latter is expressed in Modelica, the acausal programing where the full integration approach is used by incorporating both sets of D.E. and A.E. into a single Differential Algebraic Equation (DAE) and solved simultaneously. The comparison was made between simulation outputs from MATLAB and Modelica. Moreover, the working details of the thermal simulation for a DSF system in Modelica, the acausal programing language and specific discussions on the modeling work environment are provided.
인체를 대상으로 한 한의학적 비만 연구의 최신 국내 동향분석
정장원 ( Jang Won Jeong ),조성우 ( Sung Woo Cho ) 한방재활의학과학회 2016 한방재활의학과학회지 Vol.26 No.1
Objectives To analyze the latest trend through the domestic studies of obesity and support further studies and clinical trials. Methods The theses were searched through KIOM OASIS (http://oasis.kiom.re.kr), The Journal of Society of Korean Medicine for Obesity Research, The Journal of Korean Medicine Rehabilitation. Then, domestic studies were gathered and classified by year, journal and type. Results 92 theses were included. The theses were constantly published every year. According to the analyzing by journals, the most published journal was The Journal of Society of Korean Medicine for Obesity Research. Through the analysis of type, 19 clinical studies and 11 case reports were found. The result of 43 theses analyzing survey and examination numerical value, the study of relationship between obesity and body index is the most published. Among 19 literary studies, 11 studies were searched domestic thesis, 2 studies were searched foreign thesis, 5 studies were searched domestic and foreign thesis simultaneously. Conclusions We need to effort to supplement the statistical error and the topic needs to be diverse. The sustainable research of The human body-oriented obesity studies is required. (J Korean Med Rehab 2016;26(1):49-61)