Abstract
Experimental investigations have been conducted to understand the combustion characteristics of a swirl-stabilized double-cone pre-mixed burner used for industrial gas turbines for power generation. NOx and CO emissions, extinction limit, combustion noise, pressure loss, and wall temperature distributions were measured for various operating conditions. Results show that NOx emissions are decreased with increasing air/fuel ratio or decreasing air load unless the air load is too small. CO emissions are also decreased with increasing air/fuel ratio, leading to a positive correlation between NOx and CO emissions. Flame extinction limit is reduced with increasing air flow rate as the flow residence time is reduced. Combustion noise has its peak amplitude at the frequencies of 150 or 300 Hz, which are considered to be the resonance frequencies of the longitudinal mode of the combustor. The noise level at the peak frequency is maximized when the flame is considered to be located near the burner exit. Pressure loss is decreased with the A/F ratio as the flame moves downstream out of the burner.
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Ju Hyeong Cho received his B.S. and M.S. in Aerospace Engineering from Korea Advanced Institute of Science and Technology (KAIST) in Daejeon, Korea, in 1994 and 1996, respectively. His Ph.D. is from Georgia Institute of Technology in USA in 2006. Dr. Cho is currently a principal researcher at Korea Institute of Machinery and Materials (KIMM) and an associate professor at the University of Science and Technology in Daejeon, Korea. His research interests are in the area of design and analysis of gas turbine combustion system with his specialty in combustion instabilities.
Han Seok Kim received his B.S. in Mechanical Engineering from Hanyang University, Seoul, Korea in 1984, and his M.S. and Ph.D. in Mechanical Engineering from Korea Advanced Institute of Science and Technology (KAIST), Korea in 1988 and 2002, respectively. Dr. Kim is currently a principal researcher and a head of Department of Eco-Machinery System at Korea Institute of Machinery and Materials (KIMM). His research interests are in the area of development of low-emissions gas turbine combustion system and its applications to industrial power plants.
Min Kuk Kim received his B.S. from Yonsei University in 2003 and Ph.D. in Mechanical Engineering from Seoul National University, Korea, in 2010. Dr. Kim is currently a senior researcher at Korea Institute of Machinery and Materials (KIMM) in Daejeon, Korea. His research interests are in the area of design of gas turbine combustor, emission control, laser diagnostics, and electricfield assisted combustion system.
Jeong Jae Hwang received his B.S., M.S., and Ph.D. in Mechanical and Aerospace Engineering from Seoul National University, Korea, in 2007, 2009, and 2014. He is currently a senior researcher at Korea Institute of Machinery and Materials (KIMM) in Daejeon, Korea. His research interests are in the area of turbulent flames, combustion instabilities, and laser diagnostics.
Sang Min Lee received the B.S., M.S. and Ph.D. in Mechanical Engineering from Seoul National University in 1997, 1999, and 2003. Dr. Lee is currently a principal researcher at Korea Institute of Machinery & Materials (KIMM). His research interests are in the area of pollution control in combustion for industrial and agricultural applications.
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Cho, J.H., Kim, H.S., Kim, M.K. et al. Experimental investigations on combustion characteristics of a swirl-stabilized premixed burner. J Mech Sci Technol 30, 925–932 (2016). https://doi.org/10.1007/s12206-016-0146-1
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DOI: https://doi.org/10.1007/s12206-016-0146-1