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육심균,김성호,이병은,이상룡,Yook, Sim-Kyun,Kim, Sung-Ho,Lee, Byeong-Eun,Lee, Sang-Ryong 대한기계학회 2003 大韓機械學會論文集B Vol.27 No.12
An optimal soot blowing system has been developed for an optimal operation of power utility boilers by both minimization of the use of steam and the number of soot blowers worked during soot blowing. Traditionally, the soot blowing system has been operated manually by operators. However, it causes the reduction of power and thermal performance degradation because all soot blowers installed in the plant should be worked simultaneously even there are lots of tubes those are not contaminated by slagging or fouling. Heat transfer area is divided into four groups, furnace, convection area including superheater, reheater and economizer, and air preheater in the present study. The condition of cleanness of the tubes is calculated by several parameters obtained by sensors. Then, a part of soot blowers works automatically where boiler tubes are contaminated. This system has been applied in a practical power plant. Therefore, comparison has been done between this system and manual operation and the results are discussed.
보일러 최적운전을 위한 Soot Blower 운전에 관한 연구
육심균(Simkyun Yook),김성호(Sungho Kim),정해원(Haewon Jung),조창호(Changho Cho) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.11
In a coal-fired boiler, deposited slag and foul from combustion of coal pose a serious problem in heat transfer between water walls and tube bundles, after all, it reduce boiler efficiency and cause unstable load change. Old fashioned operation of soot blower to remove the accumulated ash without considering efficiency of boiler cause excessive consumption of steam and additional auxiliary power energy for sootblowing. In this study, we developed optimal soot blowing system and applied it to utility and then compared the result of optimized operation with that of old fashioned operation of soot blower.
홍성진,김승민,육심균,남삼식,Hong, Seong-Jin,Kim, Seung-Min,Yook, Sim-Kyun,Nam, Sam-Sik 한국유체기계학회 2011 한국유체기계학회 논문집 Vol.19 No.2
Small-sized gas turbine engine could be applied to various fields such as propulsion, power generation, machine driving, etc., and Doosan has been developing 5MW class gas turbine engine for power generation since 2005. To verify its design performance and operating characteristics, a gas turbine engine test facility was constructed, and control system was also established to satisfy rapid and reliable control performance. In this paper, the hardware specification and structure of control system for gas turbine engine are introduced, and test result for starting characteristics analysis and loading is also presented.