International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 02 | Feb -2017
www.irjet.net
e-ISSN: 2395 -0056 p-ISSN: 2395-0072
Design and Analysis of Aqua Silencer Abhiram Saraf1, Tejas Khese2, Tarang Shah3, Gaurav Gaikwad4, S.D. Bhaisare5 1BE
in Mechanical Engineering NBN Sinhgad School of Engineering, Pune, Maharashtra, India in Mechanical Engineering NBN Sinhgad School of Engineering, Pune, Maharashtra, India 3BE in Mechanical Engineering NBN Sinhgad School of Engineering, Pune, Maharashtra, India 4BE in Mechanical Engineering NBN Sinhgad School of Engineering, Pune, Maharashtra, India 5 Assistance Professor Mechanical Dept. NBN Sinhgad School of Engineering Pune, Maharashtra, India 2BE
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Abstract - An aqua silencer is a concept which is designed to replace conventional single unit engine silencers on board structure. It is made to deal with the control of overall emissions and undesirable sound at the engine exhaust of the vehicle. Sound produce due to working of the engine can be controlled by using water as sound produce in water is less hearable than produce in open air. This is mainly because of small sprockets in water molecules which lowers its amplitude, thus lowers the sound level. Exhaust emissions are controlled by applying a layer of activated charcoal on a perforated tube. Activated charcoal is highly porous and possesses free extra valances and has good absorption properties. So it absorbs the gases from the engine and releases much less portion to the atmosphere. The level of the sound and smoke coming out of the aqua silencer is considerably less than conventional silencer. Therefore serious attempts should be made to conserve the earth’s environment from degradation. Key Words: Aqua silencer, exhaust emissions, activated charcoal, noise, perforated tube, Water
1. INTRODUCTION Aqua silencer is made to reduce the level of noise and emission in IC engines. The main objective why we go for aqua silencer is, in today’s life the air pollution causes physical ill effects to the human beings and also to the nature. The main reason behind the air pollution is automobile releasing the gases like carbondioxide and unburnt Hydrocarbon. Carbon emission is the release of carbon into the atmosphere. The carbon emissions are directly referred to the greenhouse gas emissions. The main contributors to climate change. Since greenhouse gas emissions are often calculated as carbon dioxide equivalents, they are called as carbon emissions, when discussing global warming or the greenhouse effect. In industries the burning of fossil fuels has growing in high value, simultaneously increasing of carbon dioxide levels in our atmosphere and thus the rapid increase of global warming. In order to avoid this type of gases, aqua silencer is introduced. Currently, overall exhaust emissions, crankcase blowby & evaporative losses are the main constituents contributing towards exhaust emissions in case of automobiles catalytic converter is used for getting control over carbon monoxide (CO), unburnt hydrocarbons (UBHC) & oxides of nitrogen (NOx), and many more gasses. Muffler is used for controlling © 2017, IRJET
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Impact Factor value: 5.181
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undesirable noise at tail pipe of vehicle exhaust system. It also controls the exhaust gas recirculation (EGR) for controlling crankcase blow by. Evaporative losses are occurred due to vehicle parking it under direct sunlight. The reason of continuously increasing air pollution is the vehicle exhaust, releasing hazardous gases like Carbon Monoxide (CO), Oxides of Nitrogen (NOx), Unburnt Hydrocarbons (UBHC) & Lead (Pb), etc. Automobile exhaust is not the only cause of air pollution, other sources like electric power generation stations, thermal power plants, industrial processing, domestic fuel consumption, refuse burning etc. also contributes heavily to degradation of our environment.
1.1 Objectives The immense study and research is going to reduce emission level in auto-mobiles at various levels. Our main objective of work is to contribute our knowledge to control the emission level at lowest value as possible in IC engine, reduce noise level and also reduce back pressure as much as possible. There has been an increasing issue in recent few years about transportation and discharge outlets of industrial waste into environment. The engine emission contains smoke which creates air pollutants and other species. Hence, removal of these pollutants was necessary concern over these years. There are many other expensive techniques which are in developed in countries. In which adsorption technique is less expensive and economically feasible. It has been used for present study using some cheap cost chemicals as an effective adsorbent. Therefore the objective of the project work is to test the ability of an Aqua Silencer in minimizing air pollutants and reduce noise of emission from engine.
1.2 Scope of the Project Modifications and future scope for this project can be done by implementing nano tubes inside the perforated tube. The nano-tubes are polymers which have the manganese in its which will trap the exhaust pollutants inside it and separates the hydrogen molecules. These hydrogen molecules then can be used as regenerative to charge the fuel cells. The nano tubes are fitted in perforated tube which is immersed inside the water. So the purification process is reduced and does not require separate technique. Nano tubes can be used instead of charcoal in Aqua Silencer. As it is comparatively expensive, further modifications are being carried out to enhance more abilities. ISO 9001:2008 Certified Journal
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