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이민철(Min Chul Lee),윤영빈(Young Bin Youn) 한국연소학회 2011 KOSCOSYMPOSIUM논문집 Vol.- No.43
With great interest about energy and environmental concern, high efficient small gas turbine with distributed power generation is introduced as one of the potential solution for that problems. Using these atmosphere as the background, an experimental study on the double-swirl vertical type combustor of Doosan heavy industry 5 ㎿e class gas turbine was conducted and the combustion efficiency, pressure fluctuation and NOx emission characteristics were investigated. After diagnosing the combustion performance, the tuning test was conducted to optimize the combustion performance. Thus this paper presents the simple methods and detailed results of combustion tuning test as well as the combustion characteristics of double swirl vertical type combustor.
신연료 DME의 복합화력발전소 적용을 위한 연소성능시험
이민철(Min Chul Lee),서석빈(Seok Bin Seo),정재화(Jae Hwa Jung),안달홍(Dal Hong Ahn) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
Recently, DME(Dimethyl Ether, CH3OCH3) has highly attracted attention as an alternative fuel because of its easy transportation and clean characteristics. This study was conducted to verify the combustion performance and to find troubles when DME is fuelled to a gas turbine. Combustion tests were conducted by comparing DME with methane, which is a main component of natural gas, in aspects of combustion instability, NOx and CO emission and the outlet temperature of combustion chamber. The results of performance tests show that DME is a very clean but hard to control. CO emission level of DME is lower than that of methane and NOx emission level of DME is as low as that of methane. When firing DME, the pressure fluctuation in combustion chamber caused by combustion instability is lower than that of firing methane. From the result of outlet temperature, we can get DME is easy to flash back, and this property should be considered when operating a gas turbine and designing a burner.
이민철(Min Chul Lee),서석빈(Seok Bin Seo),정재화(Jae Hwa Chung),주용진(Youg Jin Joo),안달홍(Dal Hong Ahn) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
DME (Dimethyl Ether, CH₃OCH₃) has highly attracted attention as an alternative fuel for transportation, power generation and LPG substitute owing to its easy transportation and cleanliness. This study was conducted to verify the combustion performance and to identify potential problems when DME is fuelled to a gas turbine. GE7EA gas turbine of Pyong-Tak power plant was selected as a target to apply the DME. Combustion tests were conducted by comparing DME with methane, which is a major component of natural gas, in terms of combustion instability, NOx and CO emissions, and the outlet temperature of the combustion chamber. The results of the performance tests show that DME is very clean but has a low combustion efficiency in low load condition. From the results of the fuel nozzle temperature we have ascertained that DME is easy to flash back, and this property should be considered when operating a gas turbine and retrofitting a burner.
H₂/CO 합성가스와 메탄의 GE7EA 모사가스터빈 연소성능시험
이민철(Min Chul Lee),서석빈(Seok Bin Seo),주용진(Youg Jin Joo),김시문(Si-Moon Kim),안달홍(Dal Hong Ahn) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
IGCC technology makes it possible to utilize the low cost and clean electricity generation from coal, biomass, petroleum coke, wastes and etc. On top of that, IGCC is pre-requisite to develop the technology of CCS and hydrogen generation from coal. This study was conducted to verify the combustion performance of synthetic gas and to identify potential problems when synthetic gas is fuelled to a gas turbine. GE7EA gas turbine of Pyong-Tak power plant was selected for this study. Combustion tests were conducted by comparing hydrogen and carbon monoxide synthetic gas with methane, which is a major component of natural gas, in terms of combustion instability, NOx emission, and the exit gas temperature of the combustor. From the results of the fuel nozzle temperature we have ascertained that syngas is easy to flash back, and this property should be considered when operating a gas turbine and retrofitting a burner.