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http://dx.doi.org/10.9726/kspse.2015.19.3.016

Reduction of Nitrous Oxide Emission by EGR Method on Diesel Engine  

Yoo, Dong-Hoon (Environment / Power and Energy Department, National Maritime Research Institute)
Publication Information
Journal of Power System Engineering / v.19, no.3, 2015 , pp. 16-21 More about this Journal
Abstract
Nitrous oxide($N_2O$) concentration in the atmosphere has been constantly increased by the human activities with industrial growth after the industrial revolution. One of factors to increase $N_2O$ concentration in the atmosphere is the $N_2O$ emission caused by the combustion of marine fuel. Especially, a sulfur component included in marine fuel oils is known as increasing the $N_2O$ formation in diesel combustion. Form this point of view, $N_2O$ emission from a ship is not negligible. On the other hand, Exhaust gas recirculation(EGR) that have thermal, chemical and dilution effect is effective method for reducing the NOx emission. In this study, an author investigated $N_2O$ reduction by using EGR on a direct injection diesel engine. The test engine was a 4-stroke diesel engine with maximum output of 12 kW at 2600rpm, and operating condition of the engine was a fixed load of 75%. The experimental oil was a blend-fuel that were adjusted with sulfur ratio of 3.5%, and EGR ratio of 0%, 10%, 20% and 30%. In conclusion, diesel fuel that contained 3.5% sulfur component increased $SO_2$ emission in exhaust gas, and increment of EGR ratio reduced NO emission. Moreover, $N_2O$ emission was decreased as over 50% at EGR ratio of 10% and reduced 100% at EGR ratio of 30% compared with $N_2O$ emission of 0% EGR ratio.
Keywords
Nitrous Oxide; Green House Gas; EGR; Emission; Sulfur Dioxide;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 IPCC, 2007, "Climate Change 2007 Synthesis Report", pp. 1-52.
2 D. H. Yoo, 2014, "Effect of Fuel Injection Timing on Nitrous Oxide Emission from Diesel Engine", Journal of the Korean Society for Power System Engineering, Vol. 18, No. 6, pp. 49-55.
3 D. H. Yoo, 2014, "Effect of fuel component on nitrous oxide emission characteristics in diesel engine", Journal of the Korean Society of Marine Engineering, Vol. 38, No. 9, pp. 1045-1050.   DOI   ScienceOn
4 IMO, 2013, "Comments to the Approval at MEPC 65 of Amendments to the Effective date of the NOx Tier III standards", MEPC 66 Report, Vol. 66, No. 1, pp. 1-21.
5 J. K. Lim and S. G. Cho, 2000, "A Study on Exhaust Gas Emissions Characteristics of EGR with Scrubber for Marine Diesel Engine", Journal of the Korean Society of Marine Engineering, Vol. 24, No. 2, pp. 207-212.
6 Hyundai Heavy Industries Co., 2012, "IMO TIER III NOx Emission Control Technology(SCR & EGR)" Proceeding of the Korean Society of Marine Engineering, Spring Conference, pp. 11-17.