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환기시스템에 따른 공기감염 미생물 전파방지를 위한 멀티존 시뮬레이션에 관한 연구
최상곤,홍진관 대한건축학회 2007 대한건축학회논문집 Vol.23 No.6
In this study multi-zone simulation program CONTAM 2.4 which developed by NIST is used for modeling the actual apartment with air disinfection system which consists of dilution, filtration, ultra violet germicidal irradiation (UVGI). In this study simulation is carried out in case of varing the HRV air change rate, UVGI air change rate, filter grade and UVGI grade. Simulation result show that microbial contaminant is transported all over the apartment through opening door but air disinfection system can remove microbial contaminant over 90% even if HRV is only operated at air change rate 0.7 ACH.
미생물 안전을 위한 승용차 실내 UVGI 살균기 설치에 관한 시뮬레이션 연구
최상곤 대한안전경영과학회 2014 대한안전경영과학회지 Vol.16 No.3
The recent rise in SARS and bird flu infections around the world has raised the interest in studying the habits of air borne pathogens such as germs and viruses. In this study, simulations were carried out to predict the performance of UVGI air sterilizer at preventing airborne infections inside a car, based on the installation position and the removing effect of the UVGI air sterilizer. Simulation results showed that the UVGI air sterilizer was most effective when located at the rear side of the front seats. It was also showed that when the out-air mode and the UVGI air sterilizer were set to the highest capacity, the microbial safety levels were maintained in a car for 21 hours.
은나노 입자를 함유한 폴리부틸렌관의살균 및 항균성능에 관한 실험적 연구
최상곤,홍진관,김용봉,양찬모,박민규 대한설비공학회 2006 설비공학 논문집 Vol.18 No.7
In the present study, sterilizing and antibacterial performance tests of Polybutylene pipe with nano-silver were carried out in the testing bench of water supply facilities. Experimental results show that the average sterilizing and antibacterial rate of two microbiological samples such as E. coli and S. aureus is about 90% in case of stillness experimental condition and 99% in case of flowing experimental condition, when elapsed time is 120 hours and 3 hours, respectively.Experimental results also show that the supply water velocity in nano-silver Polybutylene pipe varies from 1m/s to 1.5m/s, the elapsed time needed sterilizing rate reach to 100% decreases.
실내 미생물오염 전파방지를 위한 멀티존 모델링에 관한 연구
최상곤,이현우,홍진관 대한설비공학회 2006 설비공학 논문집 Vol.18 No.11
In this study multi-zone modeling program CONTAM 2.4 developed by NIST is used for estimating the air disinfection rate of the interior of a room which is set up the indoor air disinfection system with filter and ultra violet germicidal irradiation(UVGI). Developed models those enable to predict the transmission of air borne contagion such as bacteria and fungus generated in our daily life are useful model for designning air cleaning & ventilation system of building. Also, results indicate that these models are enable to compute the real situation that is almost impossible of carrying out experiment in an actual condition due to biohazard problems and suggest that engineers will use these models as a design tool for the future immune building system.
미생물 안전을 위한 병원건물의 환기설계에 따른 공기 감염균 확산에 관한 시뮬레이션 연구
최상곤 대한안전경영과학회 2017 대한안전경영과학회지 Vol.19 No.4
Recently there is a growing interest in the airborne spread of virus. In particular, there is growing interest in secondary infection through the air in the hospital. The distribution of air-born virus depends on ventilation system installed in a hospital. In this study, simulations were carried out to predict the move of air-born virus by ventilation system at hospital. Simulation results showed that pressure distribution was –372.05Pa ∼ -3.45 Pa at 1st floor incase of only used mechanical exhaust at bathroom, shower stall , storage, kitchen etc.. if ventilation switch from used mechanical exhaust to mechanical exhaust & mechanical supply. Simulation results showed that pressure distribution was -336.44Pa at stair hall < -0.2Pa at bathroom < mean 1.19Pa at other room. So simulation results showed that using all of the mechanical supply and mechanical exhaust was more effective then the mechanical exhaust for maintain the pressure distribution in hospital. It was also showed that when using the mechanical supply and mechanical exhaust more effectively prevention of air born virus diffusion.
공기감염 전파방지를 위한 UVC 공기살균기 성능평가에 관한 연구
최상곤,홍진관 대한설비공학회 2005 설비공학 논문집 Vol.17 No.6
Recently, the use of UVGI system has been increasing in both medical and nonmedical buildings for the control of environmental microorganisms. In the present study, irradiance performance test of UVC lamp was carried out and indoor air sterilization effect of UV ray for preventing transimission of air borne contagion was investigated by using manufactured UVC air sterilizer. Experimental results show that the effective irradiance of UVC lamp is strongly dependent on air velocity and temperature in irradiance performance test. An individual microbiological killing effectiveness experiment also shows that the average kill rate of two microbiological samples such as bacteria and fungus is about 92% by using manufactured UVC air sterilizer. Additionally irradiance performance experimental results also show that the ballast is very important factor to keep up irradiance performance of UVC lamp.