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Jenoris Muthiya, S.
- Emission Control in Multi-Cylinder Spark Ignition Engines Using Metal-Oxide Coated Catalytic Converter
Abstract Views :236 |
PDF Views:104
Authors
Affiliations
1 Dept. of Mech. Engg., Thanthai Periyar Govt. Institute of Tech., Vellore, Tamil Nadu, IN
2 Dept. of Mech. Engg., ARS College of Engg., Chennai, Tamil Nadu, IN
3 Dept. of Automobile Engg., MIT Campus, Anna University, Chennai, Tamil Nadu, IN
1 Dept. of Mech. Engg., Thanthai Periyar Govt. Institute of Tech., Vellore, Tamil Nadu, IN
2 Dept. of Mech. Engg., ARS College of Engg., Chennai, Tamil Nadu, IN
3 Dept. of Automobile Engg., MIT Campus, Anna University, Chennai, Tamil Nadu, IN
Source
International Journal of Vehicle Structures and Systems, Vol 9, No 2 (2017), Pagination: 134-138Abstract
Internal combustion engines generate undesirable emissions during the combustion process. The NOX, HC, CO2 and CO emissions exhausted into the surroundings pollute the atmosphere that leads harming the human beings. The major causes of the emissions of pollutants are non-stoichiometric combustion, oxidation and reduction of nitrogen and impurities in the fuel and air. Thermal or catalytic converters and particulate traps are used for the post-treatment of exhaust gases [5]. In this investigation, an attempt has been made to control the engine exhaust emissions by using metal-oxide coated filters. The coating is performed by using vacuum coating unit over the surface of the mesh. The results obtained from the experiments using the filter coated with copper oxide, magnesium oxide, ferric oxide, cobalt oxide, copper oxide and their combinations were analyzed. The emission control achieved by adopting this technique was found to be effective.Keywords
Emission Control, Combustion, Catalytic Converter, Metal-Oxide Coating, Spark Ignition Engine.Full Text
References
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- Optimization of Machining Parameters on Electrochemical Micro Machining of Hastelloy C22 Using Grey Taguchi Method
Abstract Views :284 |
PDF Views:121
Authors
Affiliations
1 Dept. of Mech. Engg., SRM University, Chennai, Tamil Nadu, IN
2 Dept. of Automobile Engg., Hindustan University, Chennai, Tamil Nadu, IN
1 Dept. of Mech. Engg., SRM University, Chennai, Tamil Nadu, IN
2 Dept. of Automobile Engg., Hindustan University, Chennai, Tamil Nadu, IN
Source
International Journal of Vehicle Structures and Systems, Vol 10, No 2 (2018), Pagination: 108-114Abstract
Electro Chemical Machining (ECM) is a process that is used to machine extremely hard materials easily. It is a non-contact machining process. This ensures a higher tool life and no friction generated. The entire process is based on faradays laws of electrochemical process. With no heat affected zones (HAZ), this process holds a significant advantage over other high precision processes. This ensures that the material has neither thermal nor any other residual stresses. Nickel based alloys are known for their hardness and non-corrosive properties. This makes them unviable for machining using conventional methods as the overhead costs rise and makes them unproductive for use. ECM provides a better alternative comparatively. The alloy chosen for this analysis is Hastelloy C22. Its higher chromium content gives it better corrosion and pitting resistance. The objective of this analysis is to find the effects of various process parameters on MRR, surface finish, and dimensional deviation. The Taguchi technique has been used to investigate the effects of the ECMM process parameters and subsequently to predict sets of optimal parameters for maximum MRR and better surface finish. Grey analysis is done to find the optimal set of parameters for machining.Keywords
Hastelloy C22, Machining, Material Removal, Optimization.Full Text
References
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