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개방형 BIM 데이터 품질관리 체계화 방법에 관한 연구
권오철,조찬원,조주원,Kwon, O-Cheol,Jo, Chan-Won,Cho, Joo-Won 대한건축학회 2012 대한건축학회논문집 Vol.28 No.2
The recent trend of more complex, high-tech, high-rise and free-form buildings worldwide has made BIM(Building Information Modeling) technology being actively accepted in the industry. Along with the growth of interest on the categorization, storage, and application of BIM data, the importance of data quality management is also expected to grow. This study is to suggest effective ways of sharing BIM quality information considering the general approach for criteria, objects, and rules for Open BIM data quality management. For this purpose, we investigated precedent studies on the BIM quality management as well as literatures to draw 3 basic elements of BIM data quality - Data Quality Index, Critical to Quality and Business Rule. These elements were applied to a sample BIM model data whose quality needs to be assured for accurate QTO(quantity takeoff). And this quality assurance could be accomplished by API application developed for SMC program, suggesting a direction for BIM data quality management.
음식물쓰레기 혐기소화가스의 분리막공정을 통한 CO<sub>2</sub> 회수
권오철 ( Oh Chul Kwon ),박영규 ( Young Gyu Park ) 한국폐기물자원순환학회(구 한국폐기물학회) 2017 한국폐기물자원순환학회지 Vol.34 No.8
Biogas is a gaseous mixture produced from the microbial digestion of organic materials in the absence of oxygen. Raw biogas, depending upon organic materials, digestion time and process conditions, contains about 45 ~ 75% methane, 30 ~ 50% carbon dioxide, 0.1% hydrogen sulfide gas, and a fractional percentage of water vapor. To achieve the standard composition of the biogas, treatment techniques like absorption or membrane separation are performed for the resourcing of biogas. In this paper, the experiments are performed using biogas produced in an environmental digestion facility for food waste. The membrane module was imported from overseas, its membrane process has achieved up to 98% of the methane and 99% of the carbon dioxide separated, and it has manufactured and stored pressurized carbon dioxide. The effects of the feed pressures on the separation of CO<sub>2</sub>-CH<sub>4</sub> by the membrane are investigated. A chelate was utilized to purify the methane from the H<sub>2</sub>S concentration of 0.1%.