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클린룸 공조용 기화식 가습기를 대상으로 한 자외선 살균 효과
성민기(Sung Min-Ki),Kato Shinsuke,김민식(Kim Min-Sik) 한국건축친환경설비학회 2011 한국건축친환경설비학회 학술발표대회 논문집 Vol.2011 No.10
Evaporative humidifiers have been reported to have problem with microbial contamination. This study verified the microbial contaminations of an evaporative humidifier and investigated the germicidal effects and limitations of ultraviolet germicidal irradiation systems. The results showed apparent reduction of microbial contamination, but also there remained room for improvement to sterilize the inside of humidifier elements.
성민기(Sung. Min-Ki),전연성일(Seiich Tabuch),이중훈(Lee. Joong-Hoon),이승민(Lee. Seung-Min) 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1
The purposes of this study were to compare the sampling methods between the active air sampler and the passive air sampler and analyze the emission rates of formaldehyde and volatile organic compounds from building materials as a factor to the indoor air concentrations. Air temperature, relative humidity and ventilation rate by PFT method were measured simultaneously. The relation of ventilation rates and emission rates to air concentration were discussed.
각층 공조방식이 적용된 병실에 있어서 공기오염의 확산 및 제거
성민기(Min-Ki Sung),카토신스케(Shinsuke Kato),김종훈(Jong-Hun Kim) 한국생활환경학회 2012 한국생활환경학회지 Vol.19 No.1
This study verified the hazard of contaminant dispersion using an experiment in a hospital where multi zone variable air volume (VAVs) systems were being operated for multiple ward areas. The results showed that the contaminant released in a source ward was dispersed to all other wards through the air conditioning system, although the concentration were decreased through dilution with outdoor air. Then airborne bacteria and fungi were measured in the ward area where was occupied by patients. The results indicated that the sources of airborne microbes were in the ward and they were assumed to be patients. However, the microbes were successfully removed by the air filters in the air conditioning system before supplied to each ward. Further consideration on the methods to minimize the airborne dispersion before removed in air conditioning systems is required.
성민기(Min-Ki Sung),권순박(Soon-Bark Kwon) 한국생활환경학회 2015 한국생활환경학회지 Vol.22 No.2
The purpose of this study is to investigate the thermal environment of subway stations in Seoul and to suggest ways to improve the thermal environment and cooling energy during summer time. Major thermal environmental indexes were measured in six subway stations of three transit stations during summer time. The temperatures and relative humidities over the design conditions were observed in many concourses and platforms of the subway stations and the thermal environments of platforms were comparatively worse than concourses in most stations. Predicted Mean Vote(PMV) values were ranged over 1, which indicates “slightly warm”, in almost all stations. The air temperatures of subway stations during non-operating hour were up to 6.6°C higher than outdoor air, which presumably caused by the thermal storage during day time. The high enthalpy of subway station during non-operating hour is assumed to provide bad thermal environments to passengers in the early morning and also to cause more cooling energy during morning rush hour. Pre-cooling using low-enthalpy outdoor air before the early morning operation should be considered to improve thermal comfort and to save cooling energy even during summer time.
순환식 멀티존 공조방식이 적용된 병동의 부유균 확산 및 제거
성민기(Sung Min-Ki) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(계획계)
This study shows the prevention of the microbial contamination using air filters and in-duct ultraviolet germicidal irradiation (ID-UVGI) in a hospital where multi-zone air handling units (AHUs) were being operated for multiple ward areas. The results of monitoring the microbial contamination showed that the airborne microbes were assumed to be eliminated by both air filters and the UVGI system at the same time. The UVGI system was more effective for removing the surface microbes rather than airborne bacteria passing through air filters according to the result of surface microbes monitoring. Appropriate combination of air filters and UVGI system is assumed to be effective for preventing microbial contamination in hospital buildings.
실측과 전산유체역학을 이용한 해인사 장경판전의 보존환경 분석
조성민(Jo, Seong-Min),방종일(Bang, Jong-Il),여명석(Yeo, Myoung-Souk),성민기(Sung, Min-Ki) 한국건축친환경설비학회 2017 한국건축친환경설비학회 논문집 Vol.11 No.1
The objective of this study is to analyze the conservational environment of the Janggyeong Panjeon. World heritage Janggyeon Panjeon is wood block collection of Buddhist texts which has been preserved over 770 years. The Library (Bubbojeon, Sudarajang) of Jannggyeon Panjeon was built in 1398 and has taken part in protecting and preserving the wood blocks. In this study, temperature, humidity was analyzed and airflow was measured to analysis the current conservation environment. Computational Fluid Dynamics(CFD) simulation was conducted to observe the ventilation efficiency of the library. The field measurement and CFD result shows that the current ventilation method is providing good conservational environment to the wood blocks.