International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 08 | Aug 2024
p-ISSN: 2395-0072
www.irjet.net
EXPERIMENTAL ANALYSIS OF EMISSION AND PERFORMANCE CHARECTERISTICS OF NEEM BIODIESEL AND ETHANOL WORKING ON DIESEL ENGINE WITH EGR SANJANA M1, DR P RATHNAKUMAR2, 1 M.Tech Scholar in Thermal Power Engineering, Department of Mechanical Engineering, NIT College of
Engineering,Raichur-584103 VTU Belgavi, INDIA
2Professor and Head in Department of Mechanical Engineering, NIT COLLEGE OF Engineering
Raichur-584103 ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract - The objective of the current study was to examine the emission characteristics of compression ignition (CI) engines using neem biodiesel in combination with ethanol and varying percentages of exhaust gas recirculation (EGR). This experiment involved varying the EGR percentage from 0% to 20% in a four-stroke, air-cooled, single-cylinder diesel engine that could produce 5.2 kW of rated power. The purpose of the study was to examine the emission characteristics of engine and compare them to diesel fuel. According to the experiment, there is a decrease in the emissions of nitrogen oxides as the EGR percentage in the fresh mixture increases. The highest possible percentage of nitrogen oxide reduction as compared to diesel running alone. Carbon monoxide and hydrocarbon emissions can be reduced by employing ethanol at different EGR rates.
Scientists from various backgrounds have effectively experimenting with blending diesel fuel with oil from vegetables. Oil from vegetables and diesel fuel can be mixed exactly to run an engine. With an injection pressure of 180 bars, the oil is blended at 20%, 40%, 60%, 80%, and 100% with diesel. The best blends are then selected, and an additive—we chose to add5% with 10% & 5% EGR (Exhaust Gas Recirculation) depending on volume —is added. After that, the mixture is examined and contrasted with diesel. Tests are conducted on blends' performance, emissions, and combustion characteristics under varied loads at a steady 1500 rpm rated speed. Diesel is used to compare the outcomes.
Keywords — Biodiesel, EGR, emission, compression ignition
This project For the experimental investigations, A singlecylinder Kirloskar-type water-cooled, naturally aspirated 5.2 kW engine with a constant pressure of 180 bar was used, and it ran at 1500 rpm. During testing, diesel and neem biodiesel as fuel sources were taken into account. The experimental setup for EGR is prepared to reduce the amount of NOx in the exhaust gas. Pure diesel with EGR, pure biodiesel without EGR, and 5%, 10%, were used in the studies, all running on regular engines. The efficiency, emissions, and combustion characteristics of clean biodiesel with and without an EGR are evaluated and compared to the results of using only pure diesel.
2.EXPERIMENTAL SETUP
1.INTRODUCTION This Biofuels are substances that may be transformed to liquid fuels either use in transportation or heating. Bioethanol is produced from starchy agricultural products such as corn, sugarcane, beets, wheat, and sorghum, as well as cereal crops like corn. To produce biodiesel, one can use oil or tree seeds such as rapeseed, sunflower, soy, palm, and coconut. Given the serious problems associated with fossil fuels—such as their scarcity, rapid price increases, nonrenewability, environmental contamination, and detrimental effects on biological systems—the search has gained momentum for an alternative fuel that can coexist peacefully involves energy management, conservation, efficiency, sustainable development, and environmental protection. In emerging nations like India, where 30% of the country's foreign cash is spent on oil imports, 70% of the necessary fuel is imported, the situation is quite dire. In light of this, researchers discovered and examined a many energy sources, such as LNG, CNG, ethanol, methanol, and biodiesel. Of these alternative fuels, biofuel has the most potential for development in India.
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Constant injection pressure of 180 bar, constant speed of 1500 rpm, & EGR (recirculation of exhaust gases) at 5% and 10%, the varied tests are carried out for 0, 1, 2, 3, 4, and 5 kW. Exhaust gas temperature (EGT), volumetric efficiency, The engine's performance is assessed using brake thermal efficiency (BTHE) and specific fuel consumption (SFC). Next, the engine's emission characteristics such as CO, CO2, NOX, and HC are assessed, and the combustion characteristics. Pressure, crank angle, net heat release rate, and cumulative heat release rate are among the variables included in the evaluation. These attributes are compared with the diesel fuel outcomes.
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