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김영배,Kim, Yeong-Bae 한국화재보험협회 1991 방재기술 Vol.10 No.-
It seems that the use of one of the major fire-fighting agents-halon-is going to be denied to the fire protection community at the end of the century. It is now being widely accepted that the CFC and halons released into the atomosphere are contributing to both the depletion of the ozone layer green house effect. Therefore, we should research to determine suitable alternative(gaseous) fire extinguishings agents to the halons and improve or develop other extinguishing systems.
김영배,조을훈,장윤영,신민철,이희수,최덕균,Kim, Yeong-Bae,Jo, Eul-Hun,Jang, Yun-Yeong,Sin, Min-Cheol,Lee, Hui-Su,Choe, Deok-Gyun 한국재료학회 2002 한국재료학회지 Vol.12 No.2
The optimum condition for fabricating cordierite disc type filter element was deduced. Cordierite monolith was used as starting material for filter element because it has many advantages such as high thermal shock resistance and good catalytic activity compared with $TiO_2$and SiC. The contents of organic additives and foaming agent were optimized to control the porosity and mechanical strength of cordierite filter. Among the required properties to be adopted as filter elements, the pressure drop and NOx removal efficiency were investigated depending on processing variables. It was found that pressure drop depends on particle size distribution of cordierite monolith and organic additives added as forming agent. The pressure drop at 5cm/sec of face velocity was in the range of 15~655mm$H_2O$ at room temperature. The NOx removal efficiency of catalytic filter with $V_2O_5$ as catalyst was over 85% at $450^{\circ}C$.