Optimization of Performance and Emission Characteristics of Catalytic Coated IC Engine with Biodiesel Using Grey-Taguchi Method

Abstract

The performance and emission affected by piston catalytic coating have been analyzed in this study. The main contributing factors for improving performance such as load, fuel and speed have been preferred to reduce the emission and improve the performance of an IC engine. These specific standard parameters have been modified with copper alloy coated diesel engine with the aid of design of experiment by Taguchi with grey relational analysis optimization (GRA) method, for improving the IC engine performance and reducing the emissions. The result shows modified copper chromium zirconium (CuCr1Zr) catalytic coated piston produces less emission and improves performance when compared to standard un-coated piston type engine. In this investigation cotton seed oil is used as a bio-diesel and the piston and combustion chamber were coated with copper chromium zirconium material with a thickness of 250 microns. Finally the results of the experiments were compared with un-coated engine and optimized parameters have been identified for catalytic coated modified IC engine using Taguchi with GRA approach.IC engine is the main power source of automotive vehicles. The engine consists of many parts such as piston, cylinder head, cylinder block, etc. Piston and cylinder head are the most important components of IC engine because the power of IC engine depends upon the combustion taking place in combustion chamber. It is located above the piston and bottom of the cylinder head. As the result of the combustion pollutants are produced. Combustion is burning of fuel combined with air. In this chemical process, fuel like hydro carbon combined with oxygen and produces harmful gases leading to air pollution. During the combustion process, oxidization, does not occur properly. So, carbon monoxide is produced, and hydro carbon emission occur due to light load as the lean mixture 1 , So flame speed during the combustion may be too low or in-complete combustion may be occur 2 and hence emission level of HC, CO and NOx in the exhaust gas discharged into the atmosphere through tail pipe is higher compared to copper coated piston type engine. These gases cause many drawbacks to the society. To overcome this problem, catalytic material (copper -chromium -zirconium) is used in the form of 250 -micron coating over the piston crown and combustion chamber walls. The coating of piston and combustion chamber is done using plasma spraying process of thermal spraying technique. Rameshbabu et al. proved that the catalytic coating, reduced the required ignition energy and the flame velocity is increased 3 . Winkler M. F et al. stated that coated diesel engine gives better performance 4 . Jeyakumar et al., state that cotton seed bio diesel can be used as an alternative fuel for control the emissions like CO, HC of a diesel engine 5 .The experimental works were conducted in catalytic coated IC engine. The engine was tested with diesel, cotton seed oil blending with diesel fuel with the ratio of 10% to 20% and by varying the engine performance and emissions p...

[Retracted] Analysis on Emissions and Performance of Ceramic Coated Diesel Engine Fueled with Novel Blends Using Artificial Intelligence

“…From the above steady state thermal analysis, plasma spray method has been chosen as a thermal spray coating method to apply the ceramic coating on piston with a thickness of 200 µm topcoat. e coated medium has been transformed into molten phase by means of heat, affects the membrane surface, and swiftly cools down to form coating [26][27][28][29][30]. For decreasing the vital aggregate of gas contamination discharged from engine, this study implies a piston coated with ceramic material for testing the biodiesels.…”

“…A Compression Ignition (CI) engine with its piston coated with any ceramic material attains less heat loss, and it can be named as low heat rejection engine. In view of fuel price hikes and environmental depletion, this modified engine has gaining massive significance in the contemporary world, as it releases fewer emissions [26][27][28][29][30]. It was very well equipped, including combustion pressure and crank angle measurement.…”

“…If volume percentage of biomethyl esters increases, then the diesel, as well as n-butanol, ratio decreases in the biodiesel sample; hence, a marginal increase in performance is only observed in this investigation. During combustion process, the exhaust gas temperatures are higher for the engine with ceramic coated components than the engine under normal conditions [26][27][28][29][30]. When increased exhaust gases temperature is considered, it is obvious that turbocharging and consequently total thermal efficiency of the engine are increased.…”

“…Most of the experimental investigations have been carried out on various engines with the application of ANN for optimizing the outcomes [21][22][23][24][25]. As time passes on, researchers may use various ceramic coatings to the combustion chamber, piston, etc., in order to improve the performance and reduce the emission with the enhancement of heat transfer rate in combustion reaction [26][27][28][29][30].…”

Study of spatial and temporal aging characteristic of catalyzed diesel particulate filter catalytic performance used for diesel vehicle

“…Diesel engines have been widely used in urban buses and heavy-duty trucks throughout the world for their strong power, good economy and high reliability 1,2 . Although the electrification of vehicle is coming, for a long period of time in the future, the market for diesel engines will be continuously growing in China due in large part to higher fuel efficiency compared to gasoline engines 3 .…”