http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
윤재옥(Jae-Ock Yoon) 호서대학교 공업기술연구소 2006 공업기술연구 논문집 Vol.25 No.1
One of the sources of the sick building syndrome is a concentration of formaldehyde. The concentration of formaldehyde in the new apartment units at Cheonan city was measured summer time. The results of the field measurement were 328//g/nr1 〜 822//g/m3(average: 587//g/m3). It was over than the Korean standard level 210^g/m3. Interior constructions without ecological architectural material effect a lot, and increase the concentration of formaldehyde. And indoor air ventilation reduce the concentration of formaldehyde.
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.
윤재옥(Yoon Jae-Ock),김병렬(Kim Byung-Ryul) 대한건축학회 2008 대한건축학회논문집 Vol.24 No.11
This phenomenon ? heat island effect ? used to be confined to the largest cities in Korea, especially Seoul. However, recently this phenomenon is starting to occur in even small and medium-sized cities which are also developing rapidly. In order to analyze the heat Island Effect in Cheon-an City, measurement points were selected in commercial areas and residential areas. We measured by continuous observation and recording temperature and humidity during 13days during the fall/middle season(2007.10.10-2007.10.22), and conducted measurements for 24days during the winter season(2008.1.15-2008.2.7). We selected 4 measurement points: the main street in the commercial central area, the Bus-Terminal, at a water-space, and at a park in the commercial area. Those points selected differed in terms of ground cover. We conducted our measurements using the instantaneous method. The instantaneous measurement was used during 4 time zones and at 4 different points. The measurement targets were temperature, humidity, air velocity. We also added surface temperature as another instantaneous measurement target. We analyzed and compared the measurement result values of the 4 points. According to our results, the temperature at the water space was the lowest during all measurement times. The highest temperature was recorded on the main street which was made of asphalt. The air velocity at the park was the lowest during all times and the temperature at the park was highest during the early morning.
입주전 신축 공동주택의 휘발성유기화합물 및 폼알데하이드 실측에 관한 연구
윤재옥(Yoon, Jae-Ock) 대한건축학회 2013 대한건축학회논문집 Vol.29 No.7
Recently the problem of indoor air quality in new apartments has become a serious issue. Therefore, this study targets the main causes of Sick House Syndrome caused by VOC (formaldehyde, benzene, toluene, ethylbenzene, xylene, styrene). We obtained the indoor air quality data for the two types of new apartments that comprised 16 units. The results are summarized as follows. 1) The average formaldehyde concentration was 527.3㎍/㎥, benzene was 1.8㎍/㎥, toluene was 101.9㎍/㎥, ethylbenzene was 9.5㎍/㎥, xylene was 9.4㎍/㎥, and styrene was 5.5㎍/㎥. 2) Indoor air quality analysis results showed that the formaldehyde concentration exceeded the recommended standard. However, other concentrations of volatile organic compounds satisfied indoor air quality recommendation standards.