http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
에너지 플러스를 이용한 이중외피 시뮬레이션 결과와 실제 비교
김덕우(Kim Deuk-Woo),박철수(Park Cheol-Soo) 한국건축친환경설비학회 2010 한국건축친환경설비학회 학술발표대회 논문집 Vol.2010 No.3
During the last several decades, double-skin systems have been widely introduced. Double-skin systems have advantages of reduction of asymmetric thermal discomfort, energy savings, glare avoidance, etc. Nowadays, several whole building simulation tools (esp-r, EnergyPlus, TRNSYS, TAS, IES VE, IDA ICE, VA114, BSim, etc.) are used for assessment of thermal and energy performance of Double Skin Facade (DSF) buildings. The aforementioned tools are well-posed for energy performance assessment of conventional systems & buildings but there is an ‘accountability’ issue whether such tools can accurately describe the transient heat and mass transfer phenomena occurring in the complex 3D geometry of DSFs. The paper describes an empirical comparison of EnergyPlus results with measurement. A series of experiments were conducted (open cavity, closed cavity for airflow and thermal simulation). In the paper it is shown that the EnergyPlus simulation model is accurate enough for thermal modeling, but there is significant difference in cavity airflow between the measurement and simulation prediction. The paper aims to investigate what causes such difference and what should be considered in modeling of DSF when using the EnergyPlus tool.
김덕우 ( Kim Duck-woo ),김규용 ( Kim Gyu-yong ),황의철 ( Hwang Eui-chul ),손민재 ( Son Min-jae ),백재욱 ( Baek Jae-wook ),남정수 ( Nam Jeong-soo ) 한국건축시공학회 2018 한국건축시공학회 학술발표대회 논문집 Vol.18 No.2
In this study, water vapor pressure of high strength concrete reinforced with amorphous steel fiber(AF) was evaluated. Experimental results show that spalling occurs when the incorporation rate of amorphous steel fiber is 0.5 vol.% or more. This is because the ratio of AF increased per unit area influenced the formation of the water vapor pressure discharge passage by the polypropylene fiber(PPF) melting. Therefore, it is necessary to find the proper mixing ratio of AF and PPF to prevent spalling.
설계 과정에서의 빌딩 에너지 시뮬레이션 도구 활용과 개선
김덕우(Kim, Deuk-Woo),박철수(Park, Cheol-Soo) 대한건축학회 2012 대한건축학회논문집 Vol.28 No.10
Building simulation has enormously developed over the past three decades. Building simulation tools can describe mass and heat transfer phenomena in buildings with high accuracy. However, such tools are not widely and pervasively used in the design firm on daily basis. At most, the tools are being used for code check or green building accreditation, not being iteratively used throughout the whole building design process for better decision making. This paper reports three factors (external, internal, technical) to investigate the aforementioned issue. For this purpose, the authors utilized international literature and domestic surveys. The external factor includes tight schedule, limited budget and cost, overloaded and ill-informed staff, and lack of education and proper training. The internal factor includes differences in knowledge and praxis between designers and simulationists. The technical factor includes steep learning curves and user-unfriendly interface of simulation tools, language barrier in program manual, lack of modeling information and library suited for domestic circumstances. Finally, in the paper, it is elaborated what should be done for better use of building simulation tools in the design process.
김덕우(Kim Deuk-Woo),박철수(Park Cheol-Soo) 한국건축친환경설비학회 2008 한국건축친환경설비학회 학술발표대회 논문집 Vol.- No.-
Interior blinds systems have been introduced to provide visual and thermal comfort as well as to reduce energy use in buildings. A wide variety of such systems exist in terms of thermal and optical properties, location(exterior, interior), physical configuration(size, distance) of the blind slats. The current problem with blinds is that their operation is not based on the dynamics of the room(space) but based on the static or manual control operated by occupants, although many studies recognized that dynamic control far outperforms static control. One of the reasons is that it is not easy to combine the room dynamics with any possible optimization algorithm. Hence, In this study, A whole building simulation program EnergyPlus and MATLAB optimization toolbox were integrated to solve for optimal control of interior blind systems. the paper addresses difference between static vs. dynamic control of interior blind systems in office buildings.