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다양한 집진필터의 적용에 따른 열회수형 환기장치의 성능 변화에 대한 연구
강영모(Young Mo Kang),김종원(Jong Won Kim),서정섭(Jung Sub Seo),전병헌(Byung Hun Jeon),안영철(Young Chull Ahn) 대한설비공학회 2020 설비공학 논문집 Vol.32 No.4
Today, we live in a world where serious environmental problems exist such as ultrafine dust. Ultrafine dust ha many health risks and can cause various diseases and allergies. Thus, the role of the ventilation system as an air cleaning technology is becoming crucial. In this study, the performance evaluations of the total heat exchanger using several types of HEPA grade filters were conducted for total heat exchange efficiency, valid total heat exchange efficiency, leakage rate, noise, energy coefficient, and particle capturing efficiency. The H13 grade filter shows the highest total heat exchange efficiency. Also, the H13 grade shows the greatest decrease in total heat exchange efficiency considering the leakage rate. The results of the particle cleaning capacity test shows that the H12 grade filter has the best particle cleaning efficiency.
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특수 플랜트 철근콘크리트 공종의 작업조 생산성 및 영향요인 분석
허영기 ( Young Ki Huh ),임진호 ( Jin Ho Lim ),안영철 ( Young Chull Ahn ),오재훈 ( Jae Hoon Oh ) 한국건축시공학회 2014 한국건축시공학회 학술발표대회 논문집 Vol.14 No.1
Few studies on crew productivity has been conducted, although the data is significant for time and cost estimation. Crew productivity data was collected for over 9 months from a nuclear power plant and analysed in order to identify factors driving the productivity. It was revealed that the crew productivity of form work, rebar work and concrete pouring work was 45.64( ㎡/crew·day), 2.93(t/crew·day), 110.25( ㎡/crew·day) on average respectively. Moreover, ‘nightwork, ‘No. of workers per crew and ‘total work amount’ were identified as drivers.
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원자력발전소 철근콘크리트 공종의 작업조 생산성 및 영향요인 분석
허영기(Huh, Young-Ki),손창백(Son, Chang-Baek),임진호(Lim, Jin-Ho),안영철(Ahn, Young-Chull),오재훈(Oh, Jae-Hun) 대한건축학회 2014 大韓建築學會論文集 : 構造系 Vol.30 No.12
Few studies on crew productivity has been conducted, although the data is significant for time and cost estimation. Crew productivity data was collected for over 9 months from a nuclear power plant and analysed in order to identify factors driving the productivity. It was revealed that the crew productivity of form work and rebar work was 45.64(㎡/crew·day), 2.93(t/crew·day) on average respectively. The study also found that ‘nightwork’ and ‘total work amount completed’ were identified as drivers for the both works. Moreover, ‘complexity of daywork’ can lead to crew productivity deduction of about 77% for form-work and 81% for rebar-work. The productivity data collected and factors affecting the productivity will help managers to plan and control their similar works. This study will also be beneficial for those performing related studies.
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정현재,정군식,안영철,Jeong. Hyeon-Jae,Jeong. Gun-Sik,Ahn. Young-Chull 한국방재학회 2010 한국방재학회논문집 Vol.10 No.6
대학 기숙사는 고시원과 유사한 재난취약성을 가진 시설로서, 특히 일정시간 출입문이 폐쇄된다는 점은 화재 등 재난의 발생 시 많은 인명피해를 초래할 수 있는 위험성을 내포하고 있어, 시급한 제도적, 계획적 대책마련이 요구된다. 본 연구는 대학기숙사의 피난 안전성 향상에 유효한 피난계획 기법의 형태학적 기준 제시를 목적으로, 대학 기숙사를 대상으로 방재적 특징을 고찰하고, 평면 형태별 피난 안전성 평가를 네트워크 해석법을 통하여 실시하였다. 결과에 대한 고찰을 통하여 대학 기숙사의 방재적 취약성을 명확히 하였고, 양방향 피난의 유효성을 정량적으로 확인 할 수 있었으며, 본 연구의 모델에 한해서 피난 안전성향상에 가장 효과적인 평면계획의 형태는 회로형임을 확인 하였다. 본 연구의 성과는 피난 안전성 향상에 유효한 피난계획 기법의 형태학적 기준마련을 위한 기초자료로써의 활용이 기대된다. University dormitory has some weaknesses against disaster such as fire because of high population density and strict control of access in night time. The purpose of this study is suggestion of a guide of effective floor plan for improvement of evacuation safety. Plans for preventing disasters are studied and evacuation safeties are analysed using network model analysis method according to plan types. The weakness of disaster prevention is quantified, and effectiveness of bidirectional evacuation is confirmed. The circuit type floor plan shows best evacuation characteristics and this result is anticipated to be adopted to design process of new dormitories and will contribute to improvement of evacuation safety.
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박성출(Park, Sung-Chul),안영철(Ahn, Young-Chull),이경희(Lee, Kyung-Hee) 한국건축친환경설비학회 2012 한국건축친환경설비학회 학술발표대회 논문집 Vol.2012 No.10
Commissioning is a process for achieving, verifying, and documenting the performance of buildings to meet the operational needs. Continuous commissioning is useful to maintain building performances including control of energy consumption. The commissioning is common in developed countries and it is become popular in Korea especially in private construction sector and not in public sector. This study is to find solutions to promote commissioning in public sector by questionnaire collected from professional engineers and public officers. The commissioning process is not regulated regally by government, so the public officers don"t feel the necessity of commissioning and even they don"t know what the commissioning is. Therefore publicity activities and educations are essential and it should be regulated regally to promote commissioning process.
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