Exploring the Impact of Water Port Injection on Performance and Emission Characteristics of Diesel-Ethanol Fueled Diesel Engine

Abstract

The primary focus of this work was exploring water port injections and pre-mixed ethanol injection, which are replaceable, substitutable, and used in diesel engines that didn’t require complex engine modifications. The researchers had shown that biodiesel engines discharge NOx into the air. Many researchers use emulsions, SCR, fumigations, and other methods to decrease emissions and increase performance and had already found the minimizations of NOx emissions but there was trade of emissions and performance loss with complex and used expensive materials. Water and ethanol have lower lubricity compared to diesel fuel, potentially causing engine wear and incomplete combustion; hence, it’s crucial to assess injection quantities and engine configurations. The experiments were taken with ethanol content at 5%, 10%, 15%, and 20% with water port additions at a rate of 27g/minute. Port water injection creates space in the combustion chamber because of droplets with the property of viscosity, and high internal pressure, which reduces particulate matter and vibrations. The other property of water is that it lowers peak temperatures and increases the ignition delay to reduce NOx emissions while injecting pre-mixed ethanol helps to increase combustion due to its high oxygen content. The experiment on emissions and performance was conducted using a single-cylinder, four-stroke diesel engine equipped with a water port injection system. Four different experimental setups were analyzed: pure diesel, water port injections, pre-mixed ethanol, and a combination of water port injections with pre-mixed ethanol. Measurements included fuel flow rate, brake-specific fuel consumption (BSFC), and emissions. Among the various ethanol blends tested, the mixture of 15% ethanol with water injected at a rate of 27g/minute produced the best results. This blend, combined with water port injections, resulted in a reduction of CO and NOx emissions by 17.05% and 17.685%, respectively, while improving combustion efficiency and achieving a 2.29% saves in BSFC. However, it led to a 6.82% rise in HC emissions. The intake manifold water injection system was identified as an effective method for reducing NOx emissions, offering a straightforward and cost-effective solution.

The Primary Focus Of This Work Was Exploring Water Port Injections And Pre-Mixed EthanolInjection, Which Are Replaceable, Substitutable, And Used In Diesel Engines That Didn?�?TRequire Complex Engine Modifications. The Researchers Had Shown That Biodiesel Engines Discharge Nox Into The Air. Many Researchers Use Emulsions, Scr, Fumigations, And Other Methods To Decrease Emissions And Increase Performance And Had Already Found The Minimizations Of Nox Emissions But There Was Trade Of Emissions And Performance Loss With Complex And Used Expensive Materials. Water And Ethanol Have Lower Lubricity Compared To Diesel Fuel, Potentially Causing Engine Wear And Incomplete Combustion; Hence, It?�?S Crucial To Assess Injection Quantities And Engine Configurations. The Experiments Were Taken With Ethanol Content At 5%, 10%, 15%, And 20% With Water Port Additions At A Rate Of 27g/Minute. Port Water Injection Creates Space In The Combustion Chamber Because Of Droplets With The Property Of Viscosity, And High Internal Pressure, Which Reduces Particulate Matter And Vibrations. The Other Property Of Water Is That It Lowers Peak Temperatures And Increases The Ignition Delay To Reduce Nox Emissions WhileInjecting Pre-Mixed Ethanol Helps To Increase Combustion Due To Its High Oxygen Content. The Experiment On Emissions And Performance Was Conducted Using A Single-Cylinder ,Four-Stroke Diesel Engine Equipped With A Water Port Injection System. Four Different Experimental Setups Were Analyzed: Pure Diesel, Water Port Injections, Pre-Mixed Ethanol, And A Combination Of Water Port Injections With Pre-Mixed Ethanol. Measurements Included Fuel Flow Rate, Brake-Specific Fuel Consumption (Bsfc), And Emissions. Among The Various Ethanol Blends Tested, The Mixture Of 15% Ethanol With Water Injected At A Rate Of27g/Minute Produced The Best Results. This Blend, Combined With Water Port Injections, Resulted In A Reduction Of Co And Nox Emissions By 17.05% And 17.685%, Respectively, While Improving Combustion Efficiency And Achieving A 2.29% Saves In Bsfc. However, ItLed To A 6.82% Rise In Hc Emissions. The Intake Manifold Water Injection System WasIdentified As An Effective Method For Reducing Nox Emissions, Offering A Straightforward And Cost-Effective Solution.