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Cool Tube 길이에 따른 온도 및 기류환경 CFD 분석에 관한 연구
윤재옥(JaeOck Yoon ),서종현(JongH yen Seo),이종익(Jong lk Lee),이주희(JuHee Lee) 호서대학교 공업기술연구소 2014 공업기술연구 논문집 Vol.33 No.2
Cool Tube의 길이 변화에 따른 Tube 내의 온도 및 기류환경을 분석하기 위하여 CFD 시뮬레이션을 실시하였다. 4가지 가상모델(90m, 180m, 270m, 360m)을 디자인하고, 이를 대상으로 서부루틴을 활용한 CFD 시뮬레이션을 실시하였다. 시뮬레이션 결과에 의하면, Cool Tube가 90m일 때 외기유입구(실외)와 공조기도입구(Tube 안)와의 온도 차이는 0.8°C로 나타났으며 180m는 l . l t :, 270m는 1 .4 t, 360m는 l . r c 의 온도차이가 있는 것으로 나타났다. According to the Cool Tube length, the air temperature and air velocity in Cool Tube were simulated with CFD simulation. The 4 CFD models (Tube length was 90m, 180m, 270m, 360m) were designed for CFD simulation with sub-routine. The results of 90m Cool Tube simulation showed that the difference of temperature between the outside air and inlet air was 0.8 °C. For the 180m Cool Tube, the diffe
인천국제공항 제2여객터미널 대공간의 일사를 고려한 냉방기 실내온도, 기류분포 시뮬레이션 분석 연구
윤재옥(Yoon, JaeOck),이주희(Lee, Juhee) 대한건축학회 2020 대한건축학회논문집 Vol.36 No.8
Incheon International Airport(IIA) Terminal 2 is a large and high-rise building. In particular, the ceiling height of the Great Hall Level 5 in the center of the IIA Terminal 2 is more than 26m. That is a huge atrium with 4 floors open in some spaces, from Level 2 to Level 5. The height of that space is more than 41m. It is not easy to composite comfort indoor environments in the huge space because of temperature stratification. The CFD(Computational Fluid Dynamics) simulation is the best method at the planning stage to predict indoor temperature and airflow distribution in a large space. The purpose of this study is to persue indoor environments comfort, indoor temperature and air velocity, for the occupant area(Z=1.5m) in the Great Hall. We investigated whether the air condition is comfortable in summer, considering interior heat gains and solar radiation. It was predicted using the turbulence CFD simulation with commercial code STAR CCM+in the large space. A steady-state CFD simulation was performed, and the cooling peak time was set to 1 PM by calculating the MEP cooling load. After analyzing the results of simulation with the initial plan of MEP, we identified the problems and suggested six improvements. 1) Adding inlets near the north curtain wall at level 5. 2) Adding inlets around the sunken space of Level 4. 3) Changing the air supply tower to a normal air supply(SA) of indoor booth. 4) Adding outlets(RA). 5) Adding and relocating SA, RA to Level 2, 3. 6) SA extraction angle adjustment. The results of CFD simulations are presented in this paper. The indoor temperature and air velocity distributions of final plan was simulated and comfortable environment conditions were confirmed.