EMISSION REDUCTION BY DESIGN OPTIMIZATION IN CATALYTIC CONVERTER USING CFD

Ashish Kumar Soni; Prof. Abhishek Arya

EMISSION REDUCTION BY DESIGN OPTIMIZATION IN CATALYTIC CONVERTER USING CFD

Authors: Ashish Kumar Soni, Prof. Abhishek Arya

Unique Paper ID: 148276
Volume: 6
Issue: 1
PageNo: 122-126

Keywords: Catalytic converter CFD modeling chemical reaction conversion efficiency simulation Substrate length.

Abstract:
Internal Combustion engines generate undesirable emissions during the combustion process, which include, NOX, CO, unburned HC, smoke etc. Apart from these unwanted gases, it produces Particulate Matter (PM) such as lead, soot. All these pollutants are harmful to environment and human health. They are the main causes for greenhouse effect, acid rain, global warming etc. The simplest and the most effective way to reduce NOX and PM, is to go for the after treatment of exhaust. Devices developed for after treatment of exhaust emissions includes thermal converters or reactors, traps or filters for particulate matters and catalytic converters. The most effective after treatment for reducing engine emission is the catalytic converter found on most automobiles and other modern engines of medium or large size. Now a days the global warming and air pollution are big issue in the world. The 70% of air pollution is due to emissions from an internal combustion engine. The harmful gases like , NOX CO, unburned HC and particulate matter increases the global warming, so catalytic converter plays an vital role in reducing harmful gases, but the presence of catalytic converter increases the exhaust back pressure due to this the volumetric efficiency will decrease and fuel consumption is higher. So analysis of catalytic converter is very important. The CFD is in high demand for the analysis and design in order to reduce developing cost and time consuming in experiments. This work describes the conversion efficiency by changing the substrate length of automotive three-way catalytic converters, which are employed to reduce engine exhaust emissions. It is found that the CFD model in simulating the performance of three-way catalytic converter. There is a difference of 2.4% for oxide of nitrogen, 2.1% for propane and 1.8 % for carbon monoxide increase in conversion efficiencies by increasing the substrate length by 10mm while by reducing the substrate length by 10mm conversion efficiency reduced. The result also shows that the increase in substrate length leads to reduce emission concentration.

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Cite This Article

ISSN: 2349-6002
Volume: 6
Issue: 1
PageNo: 122-126

EMISSION REDUCTION BY DESIGN OPTIMIZATION IN CATALYTIC CONVERTER USING CFD

Available:https://ijirt.org/Article?manuscript=148276

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UGC Approved
Journal no 47859

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