{
"title": "Numerical Study on CO2 Pollution in an Ignition Chamber by Oxygen Enrichment",
"authors": "Zohreh Orshesh",
"country": null,
"institution": null,
"volume": "68",
"journal": "International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering",
"pagesStart": 1776,
"pagesEnd": 1780,
"ISSN": "1307-6892",
"URL": "http:\/\/waset.org\/publications\/5535",
"abstract": "In this study, a 3D combustion chamber was simulated\nusing FLUENT 6.32. Aims to obtain accurate information about the\nprofile of the combustion in the furnace and also check the effect of\noxygen enrichment on the combustion process. Oxygen enrichment is\nan effective way to reduce combustion pollutant. The flow rate of air\nto fuel ratio is varied as 1.3, 3.2 and 5.1 and the oxygen enriched\nflow rates are 28, 54 and 68 lit\/min. Combustion simulations\ntypically involve the solution of the turbulent flows with heat\ntransfer, species transport and chemical reactions. It is common to\nuse the Reynolds-averaged form of the governing equation in\nconjunction with a suitable turbulence model. The 3D Reynolds\nAveraged Navier Stokes (RANS) equations with standard k-\u03b5\nturbulence model are solved together by Fluent 6.3 software. First\norder upwind scheme is used to model governing equations and the\nSIMPLE algorithm is used as pressure velocity coupling. Species\nmass fractions at the wall are assumed to have zero normal\ngradients.Results show that minimum mole fraction of CO2 happens\nwhen the flow rate ratio of air to fuel is 5.1. Additionally, in a fixed\noxygen enrichment condition, increasing the air to fuel ratio will\nincrease the temperature peak. As a result, oxygen-enrichment can\nreduce the CO2 emission at this kind of furnace in high air to fuel\nrates.",
"references": null,
"publisher": "World Academy of Science, Engineering and Technology",
"index": "International Science Index 68, 2012"
}