Publisher : The Korea Society for Energy Engineering
DOI : 10.5855/ENERGY.2015.25.1.100
Title & Authors
A Fundamental Study of Hybrid Combustion System Applying Exhaust Gas Recirculation Oh, Wheesung; Yu, Byeonghun; Park, Taejoon; Lee, Chang-Eon;
In this study confirmed the reduction effect of pollutant by applying Fi-EGR and FPI-EGR to hybrid combustion system realizing premixed flame and non-premxied flame at once. The results showed that NOx emission index decreased significantly in case of adopting EGR. Additionally, the hybrid combustion system with EGR resulted in a better performance compared to usual non-premixed combustion system such that it can reduce emission at equivalent EGR ratios. Especially, in the case of 25% of FI-EGR ratio at hybrid combustion system that the ratio of non-premixed and premixed is 50 : 50, NOx emission index reduction rate was about 59% compared to emission of non-premixed combustion system without EGR and in the case of 15% of FPI-EGR ratio at hybrid combustion system that the ratio of non-premixed and premixed is 70 : 30, emission index reduction rate was about 48% compared to emission of hybrid combustion system without EGR.
Hybrid combustion;Exhaust gas recirculation (EGR); emission index (EINOx);Fuel induced EGR (FI-EGR);Fuel and premixed-gas induced EGR (FPI-EGR);
G. Aurlien, R.V. Elena and W. Oliver, Devleopment of European Ecolabel Criteria for Hydronic Heaters, European commission: Institute for Prospective technological studies, 2013.
SCAQMD, Rule 1146.2, Emissions of oxides of nitrogen from large water heaters and small boilers and process heaters.
Korea environment Corporation, "Low NOx burner approval test and performance verification test," web address: http://www.keco.or.kr/en/core/prevention_vapor/contentsid/2020/index.do.
M. Blume, J.P. Bohn, A. Goanta, H. Spliethoff, Reduction of the flue gas recirculation rate in oxycoal processes by means of non-stoichiometric burner operation, Energy, 2012, 45, 117-124.
M. Bae, K. Jung and Y. Cho, A Study on the Effect of Recirculated Exhaust Gas upon Exhaust Emissions of Boiler with a FGR System, Trans. Korean Soc. Mech. Eng. B, 2007, 31, 405-415.
B. Yu, S.M. Kum, C.E Lee, S. Lee, Study on the combustion characteristics of a premixed combustion system with exhaust gas recirculation, Energy, 2013, 61, 345-353.
B. Yu, S.M. Kum, C.E. Lee, S. Lee, Effects of exhaust gas recirculation on the thermal efficiency and combustion characteristics for premixed combustion system, Energy, 2013, 49, 375-383.
B. Yu, J. Kim, C.E. Lee, The effects of Exhaust Gas Recirculation on Non-premixed Combustion System, J. Korean Soc. Combust., 2014, 19(3), 26-33.
G. Cho, G. Moon, D. Jeong, C. Bae, Effects of internal exhaust gas recirculation on controlled auto-ignition in a methane engine combustion, Fuel, 2009, 88(6), 1042-1048.
S.B. Han and S.M. Kim, A Study on Exhaust Gas Recirculation of Homogeneous Charge Compression Ignition Engine, Journal of Energy Engineering, 2009, 18(3), 163-168.
S.R. Turns, An Introduction to Combustion., Mc-Graw-Hill, Singapore, 2000, 553-555.