http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
일유체 노즐을 이용한 실내 수분무가습 방식 클린룸의 에너지소비량에 관한 실험적 연구
송원일(Won-Il Song),박수빈(Su-Bin Park),김기철(Ki-Cheol Kim),유경훈(Kyung-Hoon Yoo),태경응(Kyung-Eung Tae),김용식(Yong-Sik Kim),양지석(Ji-Seok Yang),송덕용(Deog-Yong Song),권오명(Oh-Myoung Kwon),이건형(Kun-Hyung Lee) 대한설비공학회 2018 설비공학 논문집 Vol.30 No.11
For a recent large-scale semiconductor manufacturing plant, the air conditioning energy consumption required to maintain a cleanroom environment accounts for 40~50% of the total energy consumption in the plant. Therefore, the assessment of the air conditioning energy consumption in the cleanroom is critical for reducing energy cost in the plant. Particularly, the energy consumption required to humidify incoming outdoor air in the winter season is generally known to be high. In order to displace the huge energy consumption of steam generators like boilers in a conventional steam humidification type cleanroom, a water spray humidification technique by use of a water spray nozzles can be introduced into the air circulation path inside the cleanroom instead of the steam generators inside the outdoor air conditioning system. In the present study, a twin cleanroom experiment with each outdoor air flow of 2,300 ㎥/h was conducted to obtain and compare real time electric power consumption structures of a steam humidification type cleanroom and an indoor water spray humidification type cleanroom with one-fluid nozzles. In addition, a numerical calculation was carried out to assess the annual power consumptions of the two types of cleanrooms. It was concluded from the present work that the indoor water spray humidification type cleanroom was more energy-efficient and reduced the annual electric power consumption of the steam humidification type cleanroom by about 27%.
비정형화된 문서간 추적성 분석 및 그 가시화 방안 제시
김은희,송덕용,황진상,정재천,Kim, EunHee,Song, Duck Yong,Hwang, Jin Sang,Jung, Jea Cheon 한국시스템엔지니어링학회 2014 시스템엔지니어링학술지 Vol.10 No.1
We propose a methodology to automatically extract the requirements from the documents and check the traceability between them. The documents include not only the text file but also PDF or image files. We also suggest a method to visualize the result with maps, numbers, and graphs. By comparing the results with those of expert reviews, we show that it is necessary to use knowledge-based method in future instead of the word-based method for improving the reliability. The results give more values when they are applied in already existing documents than those of newly developed product.