http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이용일,신현동,Lee, Yong-Il,Sin, Hyeon-Dong 대한기계학회 1996 大韓機械學會論文集B Vol.20 No.1
Experiments were performed on the laminar premixed flame stabilized in a porous medium to know whether the flame downstream of the combustor exists or not. In previous theoretical studies, a stable flame has been predicted in the downstream region of the combustor, but it has never been observed in experiments. In this study, a stable downstream flame could be obtained for the lower burning velocity through circumferential heating by a blue flame positioned outside the periphery of the specially devised combustor. The existence of the stable downstream flame was confirmed by a direct photography of soot line, and temperature measurements. The effect of combustor diameter to flame stability was also considered. As the diameter of the combustor increases, the lean flammability limit was extended.
이용일,Lee, Yong-Il 대한기계학회 2002 大韓機械學會論文集B Vol.26 No.12
Most researches regarding emulsified fuel were in the areas of emulsifier, emulsified fuel manufacturing and emulsified fuel droplet combustion, but there were little papers published regarding emulsified fuel combustion and boiler efficiency in an industrial boiler. The main purpose of this study is to clarify whether improvements in the boiler efficiency and the reduction of pollutants such as CO, NOx, SOx and smoke exist or not when emulsified fuels are combusted in the commercial boiler. Main experimental parameters were water content in heavy oil , excess $O_2$, and boiler load. The fuels used in this experiment were 0.5 B-C, and 5 kinds of 0.5 B-C/water emulsified fuels. The combustion characteristics of heavy oil and its emulsions with water were investigated in an industrial boiler. The combustion stability was monitored and exhaust gases such as CO, NOx, SOx and smoke were measured with excess $O_2$ and combustion load. In case of emulsified fuel combustion, flame stability was poor and boiler efficiency was lowered by 1.6~5.7%, but emission levels of CO and smoke were improved.
날개통과온도 변화에 기반한 발전용 가스터빈의 운전관리 개선
이용일,이재헌,Yong-Il Lee,Jae-Heon Lee 한국플랜트학회 2023 플랜트 저널 Vol.18 No.4
In this study, I discussed a way of the improved operation criteria to detect combustion instability in advance F-Class Gas Turbine, which adopts lean pre-mixed combustion system. The data of 16 blades path temperature thermocouple installed radially at the gas Turbine exit were collected to analyze the variation of individual blade path temperature. The cumulative variation in individual blade path temperature for one week under normal combustion conditions was confirmed to be up to 26℃. On the other hand, in the event of combustion instability, the symptoms of increased temperature variations in the individual thermocouple were mostly seen from a few days ago. Based on the results of this study, it is deemed appropriate to inspect and maintain in Ulsan Thermal Power Gas Turbine when the individual blade path temperature exceeds 50℃ of the cumulative variation for 10 days.
이용일,Lee, Yong-Il 한국낙농육우협회 2007 낙농·육우 Vol.27 No.8
미군용 치즈와 S식품에서 제조된 치즈만이 주로 유통되던 1970년대, 서울우유 협동조합은 향후 치즈소비의 증가를 예상하고 제품기술의 개발과 제조시설의 도입을 서두르게 된다. 1984년 용인공장에서 피자 치즈생산을 개시한 지 5년후 이곳 안산공장의 시설에서는 대부분의 자연치즈와 일부 가공치즈의 제조공정이 이뤄지게 되었다. 총 $936m^2$ 면적에 회당 $10,000\ell$ 를 처리 할 수 있는 생산라인 3대를 갖추고 있는 안산공장에서는 1일 $100,000\ell$의 원유처리가 가능하다. 그러나 가공치즈의 경우 수요량에 비해 상산시설과 저장공간의 부족으로 최근('07.3.7) 거창공장에 기존의 시설을 모두 이전한 상태로 현재 안산공장은 자연치즈 생산에 주력하고 있다.