Cars using diesel have always had problems with reducing exhaust fumes, and have been studied steadily in this regard. There were studies on the remanufacturing effect of DOC catalyst deactivated by diesel vehicle smoke reduction device, analysis of vehicle fire accident cases caused by damage to diesel vehicle smoke reduction device, and related studies on the remanufacturing effect of diesel vehicle smoke reduction device DPF. This study also developed a burner system in a smoke reduction device suitable for exhaust engines to completely burn smoke generated by institutions using diesel engines in low-temperature exhaust gases. Following the development of the existing high-performance heater, burner structure capable of maintaining ignition state in exhaust flow, pulsation generated by diesel engines, and exhaust flow control unit, the actual configuration, function and effect of the device, development contents, basic data and abnormalities of the vehicle, and comparison with other developed products.

Cars using diesel have always had problems with reducing exhaust fumes, and have been studied steadily in this regard. There were studies on the remanufacturing effect of DOC catalyst deactivated by diesel vehicle smoke reduction device, analysis of vehicle fire accident cases caused by damage to diesel vehicle smoke reduction device, and related studies on the remanufacturing effect of diesel vehicle smoke reduction device DPF. This study is also to develop an exhaust flow control unit suitable for an exhaust engine to completely burn smoke generated by an engine using a diesel engine in a low temperature exhaust gas. The main systems to be developed are high-performance heaters, burner structures that can maintain ignition in exhaust flows, and exhaust flow control units that reduce exhaust gas backflow effects caused by diesel engines.

ars using diesel have always had problems with reducing exhaust fumes, and have been studied steadily in this regard. There were studies on the remanufacturing effect of DOC catalyst deactivated by diesel vehicle smoke reduction device, analysis of vehicle fire accident cases caused by damage to diesel vehicle smoke reduction device, and related studies on the remanufacturing effect of diesel vehicle smoke reduction device DPF. This study also developed an optimized system for complete combustion of smoke generated by institutions using diesel engines in low-temperature exhaust gases. The main systems to be developed are high-performance heaters, burner structures that can maintain ignition in exhaust flows, and exhaust flow control units that reduce exhaust gas backflow effects caused by diesel engines.

본 논문은 조선 전기 분청사기 향로가 세종실록 오례 <명기>에 제시된 향로의 조형 및 이를 따르고 있는 백자와 구별되고 있음을 주시하여, 분청사기 향로의 조형 및 제작 특징 을 살펴보고, 건국 초 국가의례용 향로에 대한 인식과 조형의 정립 및 정착 시기 등을 고찰 하였다. 조선 전기 국가의례에서 향을 피우는 분향(焚香) 의식은 오례(五禮) 중 군례(軍禮)를 제 외한 길례(吉禮) 가례(嘉禮) 빈례(殯禮) 흉례(凶禮)에서 반드시 거쳐야 하는 절차였던 만큼, 향을 피우는데 사용되는 향로 역시 중요한 기물이었다. 다만, 의례에 있어서 분향을 위한 향로의 설비 여부와 이원화된 설비 방식은 조선이 지향하거나 의례 정립에 참고한 중국 의례에 근간을 두고 새롭게 재편된 것이 아닌, 고려 의례를 따른 습속(習俗)에 해당할 것으 로 여겨진다. 따라서 건국 초에는 유교식 의례에 부합하는 향로의 조형 기준을 제시하기는 어려웠을 것으로 짐작된다. 더욱이 향로는 여러 의례에서 범용적으로 사용되었던 까닭에 길 례 제기(祭器) 및 가례와 빈례의 준작(尊爵) 품목에 포함될 수 없었으며, 이는 조선 전기 의례서에 향로의 조형 정보와 원칙이 누락 된 이유로 해석된다. 문헌 기록을 참고하면, 조선 전기 거행된 흉례의 분향 의식과 관련한 법과 제도는 1446 년까지 완전하게 갖추어지지 않았던 것으로 보인다. 부장용을 위한 명기(明器) 향로의 명칭 은 세종대(1418~1450)까지 ‘향완(香椀)’으로 표기되다가 단종 즉위년(1452)에 이르러서 야 ‘향로(香爐)’로 변경되어 세종실록 오례 (1454)에 적용되었다. 15세기 전반 국가의 례에 있어서 분향 제도의 미비와 향로와 향완의 명칭이 혼용되었다는 사실은 앞서 살펴본 의례용 향로에 대한 인식과 더불어 조형을 비롯한 체계가 완전하게 확립되지 않았음을 대변해 줄 것이다. 나아가 의례서에 제시된 부장용 향로의 조형인 ‘유개정형(有蓋鼎形)’ 또한 15세 기 후반 무렵에서야 정립 정착되었을 가능성을 생각해 볼 수 있다. 조선 전기 유적에서 출토되는 분청사기 향로는 의례서 수록되고 백자에서 확인되는 ‘정형 (鼎形)’과 다르고, 형태상으로 불교 공양구 향로의 조형인 ‘향완(香垸)’에 가깝다는 점에서 ‘향완형 향로’라고 할 수 있다. 다만, 분청사기 향완형 향로는 굽과 구연부의 형태, 입지름 높이 등의 크기, 명문의 배치와 내용, 문양 소재와 장식 수법 등 세부 요소에 있어서 불교 의례용 청동 향완을 따르지는 않았다. 분청사기 향완형 향로를 제작한 가마터는 관찬 지리지 에 자기소 등재 여부, 출토 유물의 명문 장식 기종 현황 분석을 종합해볼 때, 왕실 및 중 앙 관청과 관련한 진상 공납의 의무가 부여되었다는 공통점을 지닌다. 즉, 조선 전기 ‘분청 사기 향완형 향로’는 15세기 후반 무렵부터 제작되기 시작한 ‘백자 유개정형 향로’가 국가의 례용 향로의 재질 및 조형으로 정립되기 이전 및 정착되는 과정에서 왕실 및 국가의례를 위 한 향로의 한 축을 담당하였을 것으로 사료된다.

Cars using diesel have always had problems with reducing exhaust fumes, and have been studied steadily in this regard. There were studies on the remanufacturing effect of DOC catalyst deactivated by diesel vehicle smoke reduction device, analysis of vehicle fire accident cases caused by damage to diesel vehicle smoke reduction device, and related studies on the remanufacturing effect of diesel vehicle smoke reduction device DPF. This study also developed a burner system in a smoke reduction device suitable for exhaust engines to completely burn smoke generated by institutions using diesel engines in low-temperature exhaust gases. The main systems to be developed are high-performance heaters, burner structures that can maintain ignition in exhaust flows, and exhaust flow control units that reduce exhaust gas backflow effects caused by diesel engines.

Cars using diesel have always had problems with reducing exhaust fumes, and have been studied steadily in this regard. There were studies on the remanufacturing effect of DOC catalyst deactivated by diesel vehicle smoke reduction device, analysis of vehicle fire accident cases caused by damage to diesel vehicle smoke reduction device, and related studies on the remanufacturing effect of diesel vehicle smoke reduction device DPF. This study is also to develop a burner structure in a smoke reduction device suitable for an exhaust engine to completely burn smoke generated by an engine using a diesel engine in a low-temperature exhaust gas. The main systems to be developed are high-performance heaters, burner structures that can maintain ignition in exhaust flows, and exhaust flow control units that reduce exhaust gas backflow effects caused by diesel engines.

후한대 중국에 전래된 불교는 위진남북조시대에 들어 승려와 사원이 크게 증가하였다. 사원과 승려의 증가는 체계적 관리를 위한 교단과 이를 관리할 계율 제정의 필요성이 대두되었다. 이러한 상황에서 道安(312~385)을 비롯한 竺僧郞, 慧遠 등은 승단의 지도자로서 계율 제정에 노력하였다. 도안이 계율로 정한 行香定座上經上講法은 이후 佛法처럼 중국에서 정착하였고, 『法苑珠林』에는 泰始 3년인 467년 보살계를 받은 費崇先이 매번 청경을 할 때는 늘 작미향로를 무릎 앞에 두고 하였다고 기록하고 있다. 위진남북조시대와 漢代 향로의 가장 큰 차이점은 불교의례용 향로의 유무이다. 이 시기 불교의례용 병향로의 등장은 앞에서도 언급한 것처럼 계율로서의 행향과 관련이 깊지만, 및 불교경전의 한역도 병향로의 등장에 큰 영향을 미친다. 한역 경전의 ‘手執香爐’, ‘手擎香 爐’는 당시의 향로를 고려했을 때 병향로이었을 것으로 판단된다. 계율이자 의례인 行香은 동진대의 고승 道安이 제정하였지만, 행향에 사용하는 병향로는 서역에서 전래된 병향로를 바탕으로 중국적 기형인 鵲尾形柄香爐를 만든 것으로 볼 수 있 다. 위진남북조시대에 등장한 병향로는 5세기 중반에는 鵲尾香爐로 불렀다. 현재와 같은 병향로를 사용한 것은 唐代로 燉煌 출토 P.3433호 문서와 S.1774호 문서 등을 통해 8세기 후반 이후 ‘長柄香爐’라는 명칭을 사용한 것을 알 수 있다. 위진남북조시대 병향로는 작미형병향로로 대표되며, 이 향로는 화형받침과 몸체, 반구형 금구, 까치꼬리 모양 손잡이로 구성된다. 작미형병향로는 중국 남조에서 시작되어 북조로 전래된 것으로 추정되는데, 남조에서는 5세기 중후반, 북조에서는 5세기 후반경부터 작미 형병향로를 사용하였을 것으로 추정되며, 양식적으로 반구형 금구의 크기와 손잡이의 모습에 변화가 나타나는 것을 알 수 있다. 위진남북조시대 불교의례용 거향로는 새로운 기형의 등장 없이 전대의 박산향로를 불교적으로 수용하였는데, 석각화상을 통해 확인할 수 있다. 위진남북조시대 불교의례용 거향로로 사용한 박산향로는 사용 공간과 위치에 따라 다른 모습으로 표현되었고, 北魏에서 隋代 로 가면서 점차 장식적으로 변화하는 것을 알 수 있다.

Recently air pollution is becoming a global environment issue. Especially, the smoke from engines and boiler systems, which burn fossil fuels directly, is an extremely serious issue. For this reason, IMO is tightening regulations for the control of NOx and SOx. Therefore, in this study, the NOx reduction effect of emulsified oil mixed with 10% of water was tested after applying the emulsified oil to an industrial boiler burner using Bunker-C oil. The study showed that the exhaust gas oxygen concentration of emulsified oil was nearly 1.3% high and this was identified by the effect of dissolved oxygen contained in water. Also, based on the standard oxygen concentration(4%), the average and maximum NOx reduction rates were 28.53% and 30.23% respectively, which means the reduction efficiency was very high.

Gas burner has been widely utilized to many industrial fields and personal outdoor activities and so on. Portable small-sized gas burner is, especially, useful in personal outdoor activities. The performance and safety of portable small-sized gas burner is important because it uses gas as fuel. The purpose of this study was to investigate the possibilities of performance improvement of portable small-sized gas burner through flow and structural analysis, respectively. As the results, it showed that mass fraction of butane gas in all cases(Type 1, Type 2, Type 3) was about 12~18% and further safety load of 3 stand leg was below 10 kgf.

This technology is based on the processing skills by the automatic high speed burner processors to improve the overall productivity and customer satisfactions. The following conclusions could be gained from this research. A burner for processing stone plate was measured to obtain the average 23.8 m/s. Non-slip friction coefficient of the burner after processing was measured to obtain a mean value of 53.2 BPN. Production rate for stone items was measured by the time of the burner and the result passed through the brush was 26.94 m/s on average.

It compared quality characteristics for the stone surface treatment system and its products. With the result, the flame burner equipment was mainly used to the surface treatment of granite, but it occurred greatly the high temperature, the rock fragment, the noise and dust. For the other side, the whetstone polishing machine for the polishing was a maintenance for the specific physical properties of stone, and it did not occur the stone fragment and the dust. The durability of the stone products due to the flame burner was investigated with that it falls to 20~25% more than the surface treatment by the whetstone polishing. Share's hardness of the polishing products in the durability test showed more greatly index than the flame burner and conventional product. The polishing products of Pochon stone in the case of the abrasion resistance showed great more 15% than the general products, more 9% than the products by the flame burner.

To comparison the surface treatment methods of stone board materials, the results of Dorry's abrasive test were 23.4 for water-jet system and 18.9 for flame-burner system. Therefore abrasive hardness, the stone board materials by the water-jet system was greater than one by flame-jet system. As a result of Shore's hardness test, the stone board materials by water-jet system was twice greater than one by flame-jet system. Authors carried out microscopic observation to survey a defection of the composition minerals for two methods, but all of the both methods have not founded a defection. Therefore, the stone board materials by water-jet system was greater durability than one by flame-jet for the surface treatment methods.