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미기상 수치 모델을 이용한 고층아파트 입지에 따른 바람장 및 기온 변화 연구
서홍석(Houng Seok Seo),김유곤(Yoo Gon Kim),양고수(Go Soo Young) 大韓環境工學會 2011 대한환경공학회지 Vol.33 No.5
본 연구에서는 미기상 수치 모델 ENVI-MET3.0을 이용하여 고층 건물 입지에 따른 바람장과 기온 변화를 분석하였다. 대상지역은 고층 아파트 단지가 계획되어 있는 전주시 도심지이며, 실제 설계 자료를 적용하였다. 건물 입지에 따른 미기상 변화를 분석하기 위해 건물 입지전과 후에 대해 모델링을 수행한 후, 그 변화량을 분석하였다. 모델링 수행시 기상 조건은 연구대상 지역의 기후분석을 통해 두 가지를 선정하였는데, 첫 번째 조건은 풍향을 남남동(SSE)풍, 두 번째 조건은 풍향을 서(W)풍 계열로 하였다. 바람길 분석은 풍속, 열섬 분석은 기온 변화량을 통해 분석을 실시하였다. 풍속 분석 결과, 건물높이보다 낮은 고도에서는 바람이 유입되는 지역에서는 0.2~2.5 m/s 정도 증가한 반면, 건물 사이에서는 0.5~2.0 m/s 정도감소하였다. 건물 높이 이상의 고도에서는 건물이 위치한 단지 내에서는 0.1~0.8 m/s㎧정도 감소하는 반면, 단지 외부에서는 0.2~0.4 m/s 정도 증가하였다. 열섬 분석 결과, 건물 높이보다 낮은 고도에서는 건물이 위치한 단지 내와 풍하방향 지역에서는 기온이 0.01~0.1℃ 증가한 반면, 단지 외부에서는 0.01~0.05℃ 감소하였다. 건물 최고 높이 부근에서는 대부분의 지역에서 0.05~0.2℃정도 감소하였다. This study was carried out to analyze the change of wind filed and heat island according to the location of the rise building using micrometeorology numerical model Envi-met3.0. In this study, the real urban planning of Jeonju city was as input for the location and height of buildings. Modeling was performed for two conditions as input data. Case 1 is that direction is SSE and case 2 is W. To analyse the change of wind filed, wind speed results were used. To analyze the change of island, temperature results were used. Below the building height, wind speed increased 0.2~2.5 m/s at the inflow area and decreased 0.5~2.0 m/s at the area between the buildings. Above the building height, wind speed decreased 0.1~0.8 m/s near the building complex. On the other hand, wind speed increased 0.2~0.4 m/s in the outside area of the building complex. In the case temperature, below the building height, temperatures increased 0.01~0.1℃ in the building complex and leeward area. On the other hand, temperature decreased 0.01~0.0.05℃ in the outside area of the building complex. Above the buildings height, temperatures decreased 0.05~0.2℃ in most of the area.
김유곤,김달호,백병천,이우범 國立 麗水大學校 환경문제硏究所 2001 環境硏究論文集 Vol.4 No.-
The CRM used in evaluation of effectiveness, calibration or analysis equipment when you analyse in material of rice powder or similar matrix. Analytical items were γ-HCH, p,p'-DDE, endosulfan-2, samples of achieved pertreatment analized each component indivisually. Control mode of MS used selected ion monitering(SIM). GC is 6890GC of Agilent Technology company and MS is JMS 700 of Jeol company. MS operating condition was Electron impact ionization with 70eV. 300A, GC operating condition was Column : Rtx-5MS 30m*0.25m ID*0.25um, Oven Temp 90℃(3min)-20℃/min-280℃(2min), Injection port 250℃, splitless, Carrier Gas He with 1mL/min. Water contents was 12.534% and dry mass correction factor 1.143. CRM certified values of the experiment result were p,p'-DDE 0.165±0.011,mg/kg, γ-HCH 0.0129±0.0011mg/kg, endosulfan-2 0.0216±0.0027mg/kg. The numbers following the symbol ± are the numerical values of expanded uncertainties, U=ku_(c) of measurement values preceding the symbol. The level of confidence for the expanded uncertainties are 96% with k=2.
Purge & Trap, GC/MSD를 이용한 해수 중 휘발성유기화학물질 분석
김유곤,백병천,이원준 國立 麗水大學校 環境問題硏究所 2002 環境硏究論文集 Vol.5 No.-
Analysis items of this study were 1,1-dichloroethene, dichloromethane, chloroform, 1,2-dichloroethane, 1,1,1-trichloroethane, benzene, carbontertrachloride, toluene, ethylbenz ene, m,p-xylene, styrene, o-xylene. Equipment of analysis was purge & Trap/HP-6890GC/5973MSD, GC operating condition was carrier gas 99.999% Helium-0.7㎖/min, Trap meterial Tenax/SG?Charcoal, Column HP-PONA(Crosslinked Methyl Siloxane, 50m×0.2mm×0.5㎛), Oven program 35℃(10min)-4℃/min 150℃-1 5℃/min 200℃(5min), Aux 280℃, MS Source 230℃, MS Quad 150℃ Result of RSD% measurement was chloroform 9.37%, 1,2-dichloroethane 5.79%, 1,1,1-trich loroethane 12.56%, benzene 4.31%, carbon tetrachloride 15.35%, toluene 3.89%, ethylben zene 5.69%, m,p-xylene 5.65, styrene 4.02%, o-xylene 2.94%. Result of analysis showed that 1,1,1-trichloroethane, carbontetrachloride, dichloromethane were not detected, 1,1-dichloethane was detected level of 0.19ppb, 0.26ppb in 1st sampling point 6, 7, 1,2-dichloromethane 0~7.25ppb, benzene 0~0.9ppb, toluene 0/11~1/79ppb, ethyelbenzne 0~2.15ppb, m,p-xylene 0~2.32ppb, styrene 0~0.8ppb, o-xylene 0~0.68ppb.