NO emission of oxygen-enriched CH4/O2/N2 premixed flames under electric field |
| |
Authors: | Eugene V. Vega Ki Yong Lee |
| |
Affiliation: | a Department of Mechanical Engineering, Andong National University, 388 Songcheon-dong, Andong, Kyoungbuk 760-749, Republic of Korea b Dong Hae Engineering Co. LTD, 652-8 Gojan-dong, Namdong-Gu, Inchun 405-818, Republic of Korea |
| |
Abstract: | This work investigates the electric field effect on nitrogen oxide (NO) pollutant formation and emission composition of premixed flames in order to provide better insight on the mechanism of controlling the combustion process by electro-physical means. The present study aims to investigate experimentally the effect of radial DC electric field on premixed laminar methane flame. The electric field effect on flame shape, emission composition and NO emission index of flame is investigated experimentally under the action of direct-current electric field under varying equivalence ratio and level of oxygen enrichment. The results show that ionic wind effects cause the distortion in flame shape. The ionic wind effects diminish with increasing flow rate and level of oxygen enrichment. Minimal effects on NO are measured for flames under the influence of electric field and vanished as the level of oxygen enrichment is increased. This was well supported by the temperature profile measurement in the post flame gas showing no field-induced modification also. It seemed that the action of an electric field on a flame with a geometry that remains practically undeformed produces very minimal effect on pollutant emission. |
| |
Keywords: | Nitrogen oxide Electric field Oxygen enrichment |
本文献已被 ScienceDirect 等数据库收录! |
|