Mahua Methyl Ester Research Articles

Impact of injection pressure on the performance, emissions, and combustion of a common rail direct injection engine fueled with quaternary blends

The scarcity and rising costs of fossil fuels, coupled with increasing pollution levels, have prompted the exploration of innovative biofuel blends. While binary and ternary fuels have been studied extensively in proportions of 5–20%, replacing up to 30–40% of fossil fuel dependency without significant engine modifications remains a challenge. One potential solution is to investigate an optimal quaternary blend (QB) through experimental methods. This study investigates the impact of increased injection pressure (IOP) and quaternary fuel blends on a common rail direct injection (CRDI) engine's performance and emissions. Different blends, including diesel fuel, vegetable oil, mahua methyl ester and normal-butanol, were tested to replace 30–40% of diesel and enhance combustion, reduce exhaust emissions and improve overall performance. Experiments used a 1-cylinder CRDI engine at high IOPs (400, 500, 600 and 700 bar). Results at 600 bar IOP showed that the optimal blend, QB3–QB4, increased brake thermal efficiency (BTE) by 9% and reduced brake-specific fuel consumption (BSFC) by approximately 11% compared to other blends. Emissions at 600 bar included a 16% reduction in hydrocarbons (HC) and a 24% decrease in carbon monoxide (CO) at full load. However, nitrogen oxide (NOx) emissions slightly increased with higher IOP. Significantly employing the QB3–QB4 blend at 600 bar improved control over HC, CO and smoke emissions. Overall, performance was enhanced and comparable to conventional diesel fuel, with only a minor increase in NOx emissions.

Influences of iso-amyl nitrate oxygenated additive on mahua methyl ester/diesel blends thermal stability and crdi engine performance characteristics

Mahua oil is a remarkable fuel since it has a similar calorific value to diesel and has similar viscosity, flash point, and boiling points to diesel. However, since mahua oil has a lower cetane number than diesel when utilized as a blend, it displays a longer ignition delay and a greater peak heat release rate, resulting in higher NOx emission. To decrease the negative impact of mahua oil on NOx emission, an effort is made to introduce the ignition improver in different proportions (i.e., 5-20% by vol). Due to its higher latent heat, IAN shows some adverse effects on performance and emission outcomes. An investigation is conducted on a CRDI engine using mahua methyl ester blended with diesel by adding oxygenated additives to the engine characteristics. The emissions like HC, CO, and smoke were reduced by 16.32, 23.56, and 23.12%. The improved combustion process increases NOx and CO2 emissions by 13.62 and 19.89%. Also, an increase in HRR and CP values was noticed at full load operation. Additionally, it is observed that the engine’s performance is enhanced using 15% Iso-amyl nitrate (IAN), indicating that the IAN blend is a useful ignition improver for mahua oil and diesel blends.

Mathematical modelling of evaporation rate and heating of biodiesel blends of a single-component droplets

Biodiesel serve as promising fuel and optimal alternative for mitigating the present issues of fuel scarcity and emission control in compression ignition engines. Several Researches have concluded that engine performance and it’s emission characteristics heavily depends on pa-rameters like fuel droplet spray formation, atomization, evaporation and combustion which in turn depend on thermophysical properties of biodiesel fuel. In this study, the thermophysical properties like normal boiling, critical properties, vapor pressure, latent heat of vaporization, liquid density, liquid viscosity, liquid thermal conductivity, gas diffusion coefficients of two biodiesel fuels sample: Madhuca Indica and Radish oil are determined using standard correla-tion. Accurate mathematical model for estimation of evaporation rate and combustion of sin-gle component biodiesel droplet is framed and validated with single droplet setup experiment result for Jatropa Methyl Ester (JME), Karanjan Methyl Ester (KME), Mahua Methyl Ester (MME), Neem Methyl Ester (NME), Palm Methyl Ester (PME) oil and this model is further extrapolated to predict the evaporation and combustion behaviour of two unexperimented oil, Madhuca and Radish. It is found that Madhuca oil has the higher evaporation constant value of 0.1466 mm2/s and thus lowest lifetime in among the biodiesel fuel studied. This value is attributed to lower mo-lecular weight and higher molecular diffusivity. On the other hand reverse trend is observed in Radish with lower evaporation constant and higher lifetime. This study behaves as compre-hensive methodology for estimating the behaviour of biodiesel based on their composition and chemical structure and also as firm framework for combustion modelling in enhancing engine performance.

Biodiesel production from mahua oil: characterisation, optimisation, and modelling with a hybrid statistical approach

Present study investigates the feasibility of utilising mahua oil as a feedstock for the production of high-quality biodiesel via the transesterification process. Mahua fruit kernels offer an excellent biodiesel source, with an oil content of approximately 35–40%. This study employs a hybrid statistical approach, combining Response Surface Methodology (RSM) and Genetic Algorithm (GA), to optimise the transesterification process. Through the execution of L31 pre-designed experiments, this work analyzes the significance of four key process parameters: methanol-to-oil ratio, catalyst concentration, reaction temperature, and reaction time. The collective influence of these parameters on biodiesel production is comprehensively examined. The GA-derived optimal conditions for biodiesel production are determined as a molar ratio of 7.28 with a 0.93 wt.% catalyst concentration, a reaction temperature of 59.43°C, and a reaction time of 113.62 min. Experimental results validate the model predictions, as the actual yield of Mahua biodiesel reaches 97.54%, with a deviation of only 2.82% from the predicted value. Furthermore, the fuel characteristics of Mahua methyl ester were assessed and compared to ASTM standards. In conclusion, this study highlights the potential of Mahua oil as a valuable and cost-effective feedstock for biodiesel production, thereby opening avenues for its future application as an alternative fuel source.

Multi-objective optimization of CRDI engine characteristics powered with Mahua methyl ester/diesel blend: a Taguchi fuzzy approach.

An investigation has been conducted on a CRDI (common rail diesel injection) engine utilizing a blended fuel using mahua methyl ester to explore the influence of fuel injection strategies (i.e., FIP, CR, and FIT) on the engine characteristics. It is observed that specific fuel consumption (BSFC) and nitrogen oxide emission (NOx) increased with a decrease in brake thermal efficiency (BTE) in the case of MME100 at a base FIP of 500bar. The volatility and viscosity (physical properties) of the MME fuel blend influenced the combustion phenomena resulting in a reduction in engine performance. The higher viscosity of the methyl ester blend restricts the fuel atomization process during the injection. Fuel injection pressure (Pinj) was raised from 500 to 1000bar in increments of 250bar in the first phase to maximize the use of the MME blend. High injection pressures (1000bar) have higher BTE (12.33%) and better combustion characteristics (2.86%) than lower fuel injection pressures (500bar). The concentrations of smoke (3.62%), CO (15.6%), and HC (2.8%) were reduced as injection pressure was raised, owing to the better formation of the mixture and improved spray atomization. Better results were obtained by optimizing and confirming operational parameters such as compression ratio, injection pressure, and injection time. This optimum value of 1000bar injection pressure, injection timing of 27° bTDC, and a compression ratio of 18: 1 is utilized as the operating parameter values in the subsequent experiments to improve performance and decrease emissions while utilizing MME biodiesel blends in a CRDI engine.

Impact of a Thermal Barrier Coating in Low Heat Rejection Environment Area of a Diesel Engine

The most recent developments in Thermal Barrier Coating (TBC) relate to engine performance, manufacturing and other related challenges. TBC on the piston crown and valves to enhance engine characteristics while using diesel and Mahua Methyl Ester (MME) as a petroleum fuel has a great sustainable development. For this utility, a Direct Injection (DI) conventional diesel engine was renewed to an LHR engine by applying 0.5 mm thickness of 3Al2O3-2SiO2 (as TBC) onto the piston crown and valves. The MME is used in the LHR (Low Heat Rejection) engine. For examination, the fuel injector pressure is set at 200 bar. Compared to a standard DI diesel engine, the results demonstrate that the application of TBC boosts brake thermal efficiency to 13.65% at 25% load. The LHR engine’s SFC and BTE significantly improved at full load while using MME fuel. The lower temperature of exhaust gases is achieved by combining MME and diesel fuels with TBC. It was observed that both MME with and without TBC significantly reduced the smoke density. In addition, it was exposed that using MME fuel with TBC very slightly reduced carbon monoxide emissions under all loads. It was also shown that MME with TBC significantly reduced environmental hydrocarbon emissions at all loads.

Performance and Exhaust Emission Characteristics of C.I Engine Using Biofuels and Its Diesel Blend with Nano-Additives

Depletion of fossil fuel assets makes it critical that we find biodiesel sources in the contemporary world. This work investigates dual bio-fuels of jatropha methyl ester and mahua methyl ester in various proportions, such as 15 : 5, 10 : 10, and 5 : 15. The performance and emission characteristics of JME15MME5, JME10MME10, and JME5MME15 blends of jatropha methyl ester and mahua methyl ester are suitable for diesel engines with little air pollution. Biodiesel blends with titanium dioxide nano-additives, such as jatropha methyl ester and mahua methyl ester, might be more efficient at the conclusion of the experiment, preserving fossil fuel assets for future generations. Performance parameters like BTE and SFC with different load conditions are analyzed for various blends, and then final results are drawn.

Investigations into the Combined Effect of Mahua Biodiesel Blends and Biogas in a Dual Fuel Engine

Rapid depletion of conventional fuel sources has led to the use of alternative fuels and implementation of variant engine technologies to reduce deleterious emissions being released and deliver thermal energy for numerous applications. This research aims to study the usage of mahua methyl ester in a single-cylinder 4-stroke CI engine, optimized to operate in the dual fuel mode. Performance, combustion and emission characteristics are recorded and compared with diesel with the sole aim of finding the blend that provides adequate performance and diminishing emissions. To this effect, the percentage of mahua biodiesel blend, load, biogas flow rate and methane fraction are varied. The experimentation is conducted using three mahua biodiesel blend variants namely B10, B20 and B30. Gaseous fuel comprising biogas (CH4 and CO2 in ratio of 3:2) and methane (CH4) are incorporated in the dual fuel condition at 8 litre per minute (lpm) and 12 lpm. B20 blend demonstrated better performance and emission characteristics. The addition of biodiesel (B20) showed more than 5% improvement in brake thermal efficiency. Additionally, comparing with normal diesel mode, B20 showed lower CO (0.061%) and NOx (615 ppm) emissions. In the dual fuel condition, methane and biogas are effective in reducing the NOx emissions, but with a negative repercussion of extortionately elevated HC and CO emissions. The best combination is deduced to be B20 mahua biodiesel at 8 lpm of biogas flow rate in the dual fuel mode due to better performance and emission characteristics.

The influence of exhaust gas recirculation on the characteristics of compression ignition engines powered by tamanu methyl ester

Abstract This study aims to assess the performance of compression ignition (CI) engine powered with various biodiesels. The engine used for this test was a single-cylinder, water-cooled, naturally aspirated, CI engine. The biodiesels used in this study were neem methyl ester (NME), mahua methyl ester (MME), cottonseed methyl ester (CME), tamanu methyl ester (TME) and Albizia saman methyl ester (AME). According to the results, the TME-operated CI engine had 2.69%, 10.53%, 6.31% and 5.49% higher brake thermal efficiency than the MME, NME, CME and AME, respectively, without exhaust gas recirculation (EGR). Tamanu biodiesel outperformed the other test fuels in terms of performance and emissions. As a result, tamanu biodiesel was chosen as the best fuel for further testing. The results showed that tamanu biodiesel emitted more oxides of nitrogen (NOx) emissions than diesel. EGR could be used with the CI engine, resulting in a significant reduction in NOx emission. Compared to tamanu biodiesel without EGR conditions, the percentages of EGR 5%, 10% and 15% used with TME-operated CI engine produced 9.9%, 18% and 21.3% less NOx emission. The combination of EGR and tamanu biodiesel resulted in a slight increase in hydrocarbon, smoke and carbon monoxide emissions but a substantial reduction in NOx emissions. According to the study’s findings, tamanu biodiesel with 10% EGR demonstrated optimal engine characteristics while having a low environmental impact.

Optimization of Combustion Characteristics of Diesel Engine Fueled by Biofuels and Its Diesel Blends with Additive Titanium Dioxide Nano-Particles

The fuel crisis throughout the world made many countries to be aware of their vulnerability to oil shortages. So many researches are still in progress and focus on the growth of bio fuel usage. In this regard, alternative fuels and the drivetrain play a major rule in critical emission issues. However, at the same time, enormous and vast number of vehicles have started to claim and place their heavy demand for alternative sources of fuel. Of course, gasoline and diesel, the conventional fuels will become scarce and much costlier. With a present known reserves and steep rise of demand and rate of consumption, hope of crude oil import is not going to last long. The CFD investigation is to find the combustion characteristics of the BioFuel with the various compositions of mixing with diesel, the Kirloskar IC Engine is taken for this research and the results of pressure, velocity, turbulence kinetic energy, temperature gradients, fuel combustions, oxidizers volume fractions also obtained from the CFD analysis results. CFD Analysis of Biodiesel combustion done in ANSYS Fluent. Software modeling of IC Engine done in CATIA V5 Software. Jatropha Methyl Ester (JME) and Mahua Methyl Ester (MME) are used for this research. Combustion characteristics in addition to emission parameters are assessed then a conclusion can be drawn.

An experimental assessment on the influence of high fuel injection pressure with ternary fuel (diesel‐Mahua methyl ester‐Pentanol) on performance, combustion and emission characteristics of common rail direct injection diesel engine

This paper deals with analysis of the influence of fuel injection pressure with ternary fuel (diesel + Mahua methyl ester + Pentanol) on the emission, combustion and performance characteristics of a four stroke, single cylinder, common rail direct injection diesel engine working at a constant speed and varying operating scenarios. The usage of ternary fuel raised the NOx emission (12.46 %) value and specific fuel consumption (SFC) with a decrease in the BTE (brake thermal efficiency) which attributes to its properties and combustion characteristics. The combustion process was affected by the physical properties of the blended fuel such as volatility and viscosity and this eventually affected the performance of the engine. The fuel injection pressure is varied from 20 MPa to 50 MPa so that ternary fuel can be properly utilized. The high injection pressure of 50 MPa has better combustion characteristics and higher brake thermal efficiency (4.39 %) value than other injection pressure values. A better mixture is formed due to well atomized spray and as a result, the levels of CO (22.24 %), HC (9.49 %) and smoke (7.5 %) falls with the increase in injection pressure.

An experimental assessment on the influence of high fuel injection pressure with ternary fuel (diesel-mahua methyl ester-pentanol) on performance, combustion, and emission characteristics of common rail direct injection diesel engine.

Optimization of fuel injection strategies can maximize the utilization of ternary fuel by addressing the issues concerning fuel consumption, engine performance, and exhaust gas emission. In the midst of the pervasiveness of plant-based biofuel, this paper focused on maximizing the mahua oil biodiesel usage in a diesel engine having a common rail direct injection (CRDI) system without any engine modifications. The crude oil extracted from the seeds of Madhuca longifolia is known in India as mahua butter and has shown impressive fuel properties such as lower viscosity, flashpoint, boiling point, and comparable calorific value to diesel. 1-Pentanol, which has a chain of five carbons and can easily be blended with both diesel and biodiesel, is a promising type of alcohol for the future. In this study, the influence of fuel injection pressure with ternary fuel (diesel + mahua methyl ester + pentanol) on engine characteristics of CRDI diesel engine was analyzed. The fuel injection pressure is varied from 20 to 50 MPa so that ternary fuel can be properly utilized. The high injection pressure of 50 MPa has better combustion characteristics and higher brake thermal efficiency (4.39%) value than other injection pressure values. A better mixture is formed due to well-atomized spray, and as a result, the levels of CO (22.24%), HC (9.49%), and smoke (7.5%) fall with the increase in injection pressure. The usage of ternary fuel raised the NOx emission (12.46%) value and specific fuel consumption (SFC) with a decrease in the BTE (brake thermal efficiency) which attributes to its properties and combustion characteristics.

Effect Of n-amyl alcohol/biodiesel blended nano additives on the performance, combustion and emission characteristics of CRDi diesel engine.

This paper deals with the study on the influence of the effects of iron oxide nanoparticle additives when added to ternary fuel (diesel + mahua methyl ester + pentanol) on the emission, combustion, and performance characteristics of a four stroke, single cylinder, common rail direct injection diesel engine working at a constant speed and varying operating scenarios. Doping is done in various proportions to the nanoparticle additives with the help of a homogenizer and ultrasonicator where the cationic surfactant used is CTAB (cetyl trimethyl ammonium bromide). Iron oxide nanoparticles were used as additives in fuel in the dosages of 40 ppm, 80 ppm, and 120 ppm respectively and TF (ternary fuel) is obtained by mixing 10% pentanol, 20% mahua, and 70% diesel together is used for the experimental study. The experimental study revealed that while using the nanoparticle additives blended ternary fuel (i.e., TF80), the number of harmful pollutants like smoke (5.38%), HC (6.39%), carbon monoxide (10.24%), and NOx has reduced to a considerable extent and there was a commendable improvement in the BTE by 8.8%. So, we can summarize that when ternary fuel and nano additives are blended together the combustion and performance of the engine was improved considerably and pollutant emissions were decreased.

Influence of the effect of nanoparticle additives blended with mahua methyl ester on performance, combustion, and emission characteristics of CRDI diesel engine.

This research work aims to investigate the effect of fuel-borne additives when added to mahua methyl ester (MME) blend operated on common rail direct injection diesel engine. Nanoparticles (Al2O3 and Fe2O3) were chosen with the help of a homogenizer and ultrasonicator as fuel additives at dosing levels of 40, 80, and 120 ppm, respectively, and the biodiesel is prepared by blending 80% diesel and 20% MME. The performance, emission, and combustion characteristics were considered for analysis. The experimental study revealed that while using the Al2O3 nanoparticle additives' blended biodiesel (MME20+AONP120), the number of harmful pollutants like smoke (5.38%), HC (6.39%), carbon monoxide (10.24%), NOx, etc. has reduced to a considerable extent and there was a commendable improvement in the BTE by 8.8% in comparison with MME20. Moreover, MME20+AONP120 blend resulted in high in-cylinder pressure, HRR of about 58.4 bar, and 118 J/0CA, respectively, which are higher than diesel and MME20. So, it can be summarized that when biodiesel and nano additives are blended together, the combustion and performance of the engine were improved considerably and pollutant emissions were decreased.

Effect of palmitic and oleic acid mixture on performance and emission analysis of a di diesel engine

The methyl ester is a sustainable, biodegradable and non-toxic fuel. Vegetable oil can be converted to methyl ester through a process of transesterification. Very a few works have been published in the literature on the use of two different methyl esters in the blended form of diesel fuel. In the present work, however, two methyl esters, namely PME and MME, were chosen and used as fuel in the blended form. Palmitic and oleic acids are the main fatty acid composition of methyl esters. The existence of a single bond of oleic acid in methyl esters can improve the combustion characteristics. Empirical studies on diesel engine reveal that there is a reduction in brake thermal efficiency (BTE) and an increase in NOx emissions and CO2 emissions with an increase in the concentration of methyl ester in the blend. However, the emissions such as Smoke, CO and UHC were reduced significantly. At rated power, Brake thermal efficiency values of standard Diesel, and blends B20, B40, B60 and B80 are 29.1%, 28.5%, 28%, 27.4%, and 26.9% respectively. The NOx emissions are in the order of 1515 ppm, 1546 ppm, 1552 ppm, 1566 ppm and 1630 ppm and smoke emission are 4.4 BSU for diesel fuel whereas it decreased with the increase of methyl ester in the blends. The same trend has been observed for hydrocarbon emissions. The study reveals that the B20 blend (80% Diesel + 10% Pongamia Methyl Ester + 10% Mahua Methyl Ester) is similar to that of diesel fuel in terms of performance and oxides of nitrogen emission.

Analysis of performance, combustion and emission parameters in di diesel engine by using mahua methyl ester along with nano metal additives titanium dioxide

Current scenario is look at Non conventional alternative fuel source to decrease its dependence on the foreign import of various oils. Amongst all alternative fuel offered Mahua oil, in which is changed to bio - diesel by means of transesterification process. The adding up of nano-metal additive to biodiesel during a variety of form considerably improves the properties and it contributes to improved behaviour of diesel engine by reduced emission. The experimental work is done to found the behavior, combustion and emission characteristic in the diesel-engine by means of Biodiesel fuels and Nano-metal Additives Titanium Dioxide. The Bio diesel is prepared by transesterification processes, then powder metal oxide is converted in to nano form by means of ball milling, CTAB (Cetyl Trimethyl Ammonium Bromide) is taken as cationic agent, then known quantity of TiO2 and CTAB Nano metal additives is mixed with the base fluid Mahua oil Methyl Ester (MOME) which is the biodiesel by Ultrasonication process. The blend which is obtained is tested by single cylinder four stroke diesel engines and can be noted that the adding of nano metal additive in the bio diesel improves the behavior, combustion and the emission characteristics of diesel-engine.

Performances emissions behaviors of Compression ignition engine by mahua oil

The project works deal with the bio-diesel which formed from the Mahua oil by esterifications and follow by the transesterifications. The kinetic study of optimizes the research of Mahua oil Methyl Ester was taken at various parameters as methanol % of surplus alcohol, reactions time and oil molar ratio, concentrations of acid channel and temperature. The output shows that the 4.2% H2SO4, 0.35% alcohol ratio, 1.15 h reactions time and the temperature of 60 0C is optimal condition to the esterifications. The most favorable condition to the production of the bio-diesel is 2.2% sodium Methoxide, 0.1% alcohol oil ratio, 1.15 h reactions time, 60 0C of temperature and 140% excess alcohol the best condition to the tranesterifications. In this work, the investigation is taken to revision then performances, emissions and combustions properties of mahua Methyl ester. The output was checked by diesel and chosen mahua methyl ester as fuel blend. The setup having single cylinder forced water cooled C.I engine is utilized. At first, engine is run by methyl ester mixed by the volume basis and the corresponding reading is taken. The results are taken entire series of engine operations for different load condition. The performance parameters of engine are like SFC, exhaust gas emissions, break thermal efficiency were cheap with raise in bio-diesel concentrations.

Effect of fuel injection pressure on the performance and emission analysis of Mahua Methyl ester in a single cylinder diesel engine

Over a decade in the automotive sector, diesel engine analysis has been taken by researchers for the improvement area. Diesel engines were extensively used worldwide than any other category of engines due to its fuel running cost and engine efficiency. The development of diesel engines increased enormously, relative increase was seen towards the weakening of diesel fuel which was its power source. The diesel fuel was exhausting the detrimental emissions. As globally, emission norms of vehicles become very stringent, the researcher has a need to look for the wider alternative. In this paper, a promising alternative of bio seeded Mahua Methyl Ester oil was investigated on the performance and emission analysis in a single-cylinder diesel engine with the influence of varying fuel injection pressure.

Study on novel nano mahua methyl ester powered DI diesel engine preheated with a thermoelectric waste heat recovery system

ABSTRACT This experimental research work aims at analyzing the combined effect of alumina nanofluid and thermo-electric principle on performance, combustion and emission characteristics of preheated novel nano mahua methyl-ester. The experimental test was carried out on single cylinder direct injection diesel engine at the rated speed of 1500 rpm. The 20% trans-esterified mahua biodiesel and different proportions of alumina nanofluid were blended with base diesel fuel, namely M20-D80, M20-D80 + 2 ml of ANF and M20-D80 + 4 ml of ANF on volume fraction. The fuel properties such as density, kinematic viscosity and heating value were measured and compared with BDF as per ASTM standards, and it is preheated before admission to the combustion chamber through biodiesel preheating arrangement. The test engine experiments were initially conducted on base diesel fuel under different loading conditions. Subsequently, experiments were repeated with novel nano mahua methyl ester (mahua biodiesel) blends. Among various fuel blends, a preheated fuel blend of M20-D80 + 2 ml of ANF resulted in improved brake thermal efficiency and lowered brake specific energy consumption as compared with BDF. For engine emission, the M20-D80 + 2 ml of ANF fuel blend resulted in lower hydrocarbon (HC), carbon monoxide (CO) and smoke levels. However, oxides of nitrogen emission (NOx) were marginally higher at part load operation. At maximum power output, the in-cylinder pressure (p- θ curve) and heat release rate (HRR) curves were lower equated with BDF.

Influence of metal-based cerium oxide nanoparticle additive on performance, combustion, and emissions with biodiesel in diesel engine.

Biodiesel has been renowned as potential and alternative fuel for years. In order to improve the quality of the conventional fossil fuels, biodiesel, and air pollution from combustion, additives are essential to exploit. In this study, the uses of cerium oxide (CeO2) nanoparticle additive for B20 fuel in a diesel engine are investigated. The CeO2 nanoparticles with cetyl-trimethyl ammonium bromide are doped into the B20 fuel by using ultrasonicator. The purpose of the experimental work was adopted to enhance engine combustion and reduce the emissions with an approach of CeO2 nanoparticle additive. The experiment was conducted on a diesel engine using different propagation of CeO2 nanoparticle in blended mahua methyl ester fuel such as B20 + CeO2 50ppm, B20 + CeO2 100ppm, and B20 + CeO2 150ppm. The obtained results are compared with the diesel and B20 fuels. The minor changes are obtained in B20 fuel properties due to the addition of CeO2 nanoparticles. The performance of brake thermal efficiency and combustion of pressure data is observed to be enhanced by the addition of a metal-based additive. The CO, HC, and smoke are decreased for B20 fuel with nanoparticles. The NOx is reduced by dosing the CeO2 due to the oxidation of unburned CeO2 in the exhaust.