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바이오가스 내 황화합물 및 실록산 제거를 위한 상용 흡착제의 흡착 특성
임찬종(Chan-Jong Lim),박철우(Chul-U Bak),김우승(Woo-Seung Kim),김영득(Young-Deuk Kim) 대한기계학회 2016 대한기계학회 춘추학술대회 Vol.2016 No.12
In this study, bench-scale adsorption experiments have been conducted to investigate the adsorption characteristics of commercially-available adsorbents for the removal of impurities from biogas. The physicochemical properties of adsorbents are first characterized using SEM, XRF and BET analyses followed by the adsorption characteristics analysis of sulfur compounds and siloxanes in adsorbents considered in the present work. It is found that the IHS adsorbent, composing of 85% iron oxide-hydroxide and 5% silica gel, has the best adsorption capacity of hydrogen sulfide, in which its adsorption capacity is almost six times higher than that of iron oxide adsorbent. The IHS has also the highest adsorption capacity for carbonyl sulfide. The best removal efficiency of carbon disulfide has been achieved by both activated carbon and impregnated activated carbon among all of the adsorbents tested. In cases of siloxanes D<SUB>4</SUB> and D<SUB>5</SUB>, the silica gel (A2) shows an extremely high adsorption capacity.
Power Consumption Pattern Analysis of Home Appliances for DC-based Green Smart Home
Gab-Su Seo(서갑수),Jongbok Baek(백종복),Chul Woo Bak(박철우),Hyunsu Bae(배현수),Bohyung Cho(조보형) 전력전자학회 2010 전력전자학술대회 논문집 Vol.2010 No.7
Research on modification and replacement of conventional AC distribution system to DC distribution system has been widely conducted. When DC system is applied, it is possible to improve energy transferring efficiency because most of the home appliances are electric loads which require DC input voltage. Furthermore, compatibility with renewable energy sources and secondary batteries should be improved as they are DC based power sources. To design energy efficient DC system, it is important to understand the load characteristics of the electric devices. In this paper, the electric appliances are classified to 3 types: motor, heating, and electric loads and their typical power consumptions are shown. Load patterns of load which can be used in analyzing the designed system are modeled according the statistics. Feasibility of the developed load patterns are verified by applying it in distribution system design tool.