Title :
Exhaust characteristics of Nitrous oxide from marine engine
Author :
Yoo, Dong-hoon ; Nitta, Yoshifuru ; Ikame, Masaru ; Hayashi, Mitsuru ; Fujita, Hirotsugu ; Lim, Jae-keun
Author_Institution :
Power & Energy Syst. Eng. Dept., Nat. Maritime Res. Inst., Mitaka, Japan
Abstract :
Under Kyoto protocol, 37 countries (“Annex I countries”) commit themselves to reduce four greenhouse gases (GHG) (Carbon dioxide, Methane, Nitrous oxide, Sulphur Hexafluoride) and two groups of gases (Hydrofluorocarbons and Perfluorocarbons) produced by them. Nitrous oxide (N2O) is one of the main four GHG and has strong global warming effect. Assuming 120-year period, it has 310 times more impact per unit weight than carbon dioxide (CO2). There are some reports on the N2O emission characteristics of stationary power plants and land transportation, but that of marine transportation is very limited. Therefore, in this study, the authors investigated the effects of engine operating conditions on N2O emission characteristics of a training ship at sea and examined relationships between N2O and the other gaseous emissions. Experimental results show that the emission characteristics of N2O are related to exhaust gas temperatures and air excess ratios and are rather different from those of NO.
Keywords :
air pollution control; engines; global warming; ships; GHG reduction; Kyoto protocol; air excess ratios; carbon dioxide; engine operating condition; exhaust gas temperatures; global warming effect; greenhouse gas reduction; hydrofluorocarbons; land transportation; marine engine; marine transportation; methane; nitrous oxide exhaust characteristic; perfluorocarbons; stationary power plants; sulphur hexafluoride; training ship; Engines; Fuels; Marine vehicles; Navigation; Sea measurements; Temperature; Temperature measurement; Diesel engine; Emission; Green House Gas; Nitrous Oxide;
Conference_Titel :
OCEANS, 2012 - Yeosu
Conference_Location :
Yeosu
Print_ISBN :
978-1-4577-2089-5
DOI :
10.1109/OCEANS-Yeosu.2012.6263637