Experimental Study of a Diesel Engine Performance Fueled with Different Types of Nano-Fuel (original) (raw)
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Journal of Power of Technologies, 2020
Users of fossil fuels are facing a range of challenges such as long-term rising demand, climate concerns due to emission of greenhouse gases, ecological pollution, finite reserves and price fluctuations. Diesel fuel is similarly affected, though with its own subset of issues. Studies suggest that diesel fuel characteristics are affected by addition of nanoparticles. In this research, carbon nanotubes (CNTs) were blended with pure diesel as an additive at concentrations of 30, 60, and 90 ppm to assess the emission and performance characteristics of a single-cylinder compression combustion engine. The considered emission contents included CO, CO2, HC, and NO produced by an engine at 50% and 100% loads, at 1800, 2300, and 2800 rpm. Addition of CNTs to the diesel fuel considerably reduced the emission of CO, CO 2 , HC, and NO compared to additive-free diesel fuel. Furthermore, with the addition of carbon nanotubes, the Exhaust Gas Temperature (EGT) and the Brake Specific Fuel Consumptio...
Clean Technologies and Environmental Policy, 2021
This research investigates the effects of the addition of Fe2O3 and Al2O3 nanoparticles (30, 60 and 90 ppm) and Fe2O3–Al2O3 hybrid nanoparticles to pure diesel fuel on the combustion, performance and emission characteristics of a diesel engine. The results indicated that fuel blends improved the combustion (in-cylinder pressure and heat release rate), performance (power, fuel consumption and thermal and exergy efficiency) and emission characteristics of the engine. The results showed that the peak combustion pressure increased by 4% and the heat release rate was improved by 15% in comparison with pure diesel with the addition of the nanoparticles. Moreover, the rate of pressure rise increased by 18% compared to pure diesel with nanoparticle additives. Based on the results, the effects of Fe2O3 fuel blends on brake power, BTE and CO emission were more than Al2O3 fuel blends, such that it increased power and thermal efficiency by 7.40 and 14%, respectively, and reduced CO emissions by...
Emission examination on nanoparticle blended diesel in constant speed diesel engine
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This study investigates the emission behavior of diesel fuel by adding TiO 2 nanoparticles in four-stroke, single-cylinder, compression-ignition (CI) engine. This work is aimed at reducing the harmful tailpipe emissions from compression ignition engine when fueled with neat diesel. 50 and 100 ppm of TiO 2 nano additive were mixed with diesel using ultrasonicator. Addition of TiO 2 nano additive was aimed to enhance the burning properties of diesel and lower its tailpipe emissions. Experimental work concluded that the test fuels used in this study does not require any modification in engines. In addition, the combustion of fuels was smooth and there was no physical and visible damage in the engine components when fueled with base and modified fuels. It was found that by adding 50 and 100 PPM of TiO 2 nanoparticles to diesel, significant reduction in CO, HC, NO x , and Smoke emissions were observed.
The present review investigates modification of diesel fuel formulation and development of a new model to enhance engine performance, improve fuel properties and reduce exhaust emissions. Emissions arising from the fuel can be controlled by blending an oxygenated fuel (renewable fuel) with the diesel fuel. The blending oxygenated fuels namely Methanol, Ethanol, and n-Butanol are examined in addition to their effects. This review paper studies the implication of different torques and various engine speeds. In some conditions, it can even cause an increase in the content of carbon monoxides (CO), carbon dioxide (CO 2) and nitrogen oxides. This review showed that the engine speed has a negative effect on all of the air pollutants, so that increasing of the engine speed leads to reduction of the air pollutants. However, the engine load gives rise to most exhaust emissions. Adding the oxygenate fuels increases brake specific fuel consumption (BSFC), while brake thermal efficiency (BTE) decreases. In some researches, a nano-metal additive has been used in the fuel for improving the engine performance. In case of using the nano-metal additives to the diesel fuel (a nano-metal with small thermal conductivity coefficient), the engine performance is seen increased.
Although the Compression Ignition Engines are a significant source of power, their detrimental emissions initiated the searches for alternative fuels that are renewable, safe and non-polluting. Even many researchers have put valid efforts in fuel modification, the current work describes the role of multiple nanofuel additives in diesel fuel. In this context, Aluminium oxide and Cobalt oxide nanoparticles are incorporated with the diesel fuel to investigate the performance, emission and combustion characteristics of a four stroke, single cylinder diesel engine. Experiments were carried out using five different additive combinations, neat diesel and diesel with some commercial additive for comparison. The experimental outcome revealed a substantial enhancement in brake thermal efficiency and a marginal reduction in harmful pollutants such as NOX, CO and smoke, for a particular nano additive proportion compared to that of neat diesel and commercial additive incorporated diesel.
Experimental Analysis on Synergetic Effect of Multiple Nanoparticle Blended Diesel Fuel on CI Engine
Although the Compression Ignition Engines are a significant source of power, their detrimental emissions initiated the searches for alternative fuels that are renewable, safe and non-polluting. Even many researchers have put valid efforts in fuel modification, the current work describes the role of multiple nanofuel additives in diesel fuel. In this context, Aluminium oxide and Cobalt oxide nanoparticles are incorporated with the diesel fuel to investigate the performance, emission and combustion characteristics of a four stroke, single cylinder diesel engine. Experiments were carried out using five different additive combinations, neat diesel and diesel with some commercial additive for comparison. The experimental outcome revealed a substantial enhancement in brake thermal efficiency and a marginal reduction in harmful pollutants such as NOX, CO and smoke, for a particular nano additive proportion compared to that of neat diesel and commercial additive incorporated diesel.
Experimental investigation to identify the effect of nanoparticles based diesel fuel in VCR engine
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
Rapid modernization increases the demand and modern technological advancements of alternative fuels in the automobile sector. Currently, fossil fuel depletion and ecological degradation are the two emergencies faced by the world. Nowadays, in diesel engines, the sustainability of biodiesel is the key factor for using it as a fuel. In the existing works, the contribution of nanoparticles in diesel is limited when compared to the utilization of biodiesel. This experiment is concentrated on nanoparticles contained diesel blend with the help of a 4-stroke, normally suctioned, Kirloskar engine. Four different nanoparticles, such as oxides of Aluminum, Magnesium, Cerium, and cobalt, are contributed in this research work with different combinations. Experimentation is done in the engine for different nano-based diesel blend under the conditions of 0 to 15 kg load and 15, 16, and 17 of compression ratios. A well-trained linear regression-artificial neural network is utilized as a prediction model to decide the performance and emission from the engine, and which is executed on the Mat Lab platform and its performance results are compared with experimented results, respectively. When using the oxides of Aluminum and cobalt to the diesel fuel, the optimal engine performances and emission characteristics are obtained at the rate of 78.5% of Brake thermal efficiency, 0.02% of CO emission, 2.94% of CO2 and 275 ppm of NOx. Thus the research concludes that the proposed nanoparticle blends of biodiesel fuels perform better than conventional diesel under variable compression ratios and loading conditions, respectively.
Worldwide energy demand has been growing steadily during the past five decades and experts believe that this trend will continue to rise. An experimental investigation is carried out to establish the performance, emission and combustion characteristics of a diesel engine using diesel fuel and alumina-nanoparticle blended diesel fuel. The nanoparticles of alumina are mixed with the diesel fuel in the mass fractions of 25 ppm to 75 ppm systematically. The investigation is carried out using an experimental set-up consisting of a single-cylinder diesel engine coupled with an eddy current loading device, an AVL DiGas 4000 Light analyzer, an AVL smoke meter, and a data-acquisition system. Theoretical Investigation was carried out by creating a 2D IC Engine model using the ICEM CFD software and solved using the Fluent Software. The blending of nanoparticle reduces viscosity, shortens the ignition delay and increase the atomization which in turn will reduce NOx and increase the efficiency. The experimental results were compared with that of simulated values and a reasonable agreement between them was noticed. Keywords: Diesel Engine; CFD; Nano; AVL.
2021
Thermal efficiency and fuel economy of diesel engines are better. Despite the fact, due to the depletion of world petroleum reserve and hazardous pollutant emission to the environment, there is a need to research on the improvement of performance and reduction of environmental pollution. Utilization of biofuels such as ethanol and biodiesel is a solution to substitute petro-diesel and reduce pollution. The low calorific value of biofuels makes them to have lesser performance values compared to neat diesel. To improve the performance and reduce emission, strategies of fuel modification consisting of modifying fuel characteristics to improve combustion, which leads to better engine performance, less exhaust emissions, and higher fuel economy, are required. Addition of biofuels such as ethanol to petro-diesel lowers the calorific value and the cetane number of the emulsified fuel which reduces the performance of the engine and increase fuel consumption. Adding nanoparicles in base fuel...
This essay scrutinizes an experimental study conducted to appraise the influence of using n-Butanol with diesel fuel in 5% and 10% (volume) n-Butanol, 1% nitro methane (NM), injection timing and two Nano-particles (alumina and a type of silica powder) on the engine performance (brake specific fuel consumption and engine power), fuel properties (Cetane number and flash point) and exhaust emissions (soot, NO x and CO) of an engine with 4-cylinder (with a system of common rail fuel injection), intercool-ing, cooled exhaust gas recirculation (EGR), and turbocharged. The tests are conducted by varying the engine load (25 and 75 nm) and changing engine speed (1500 and 2200 rpm). Normal Butanol presents better brake specific fuel consumption (BSFC) but this blend doesn't reflect better engine power. All the percentages of n-Butanol in the fuel make Cetane number decrease but adding 1% of nitro methane makes Cetane number increase. For all the n-Butanol, the percentage flash makes the fuel decrease in comparison to pure diesel fuel. The current experimental study demonstrates that adding the n-Butanol and nitro methane to diesel fuel direct into diminishing soot emission. In contrast, this blend raises NO x and CO emissions. Furthermore, this research indicates that the increase of engine speed dwindle air pollutants and enhances BSFC. It also remarks that power gets increased at low engine speed. However, power gets reducedat high speed. This article represents that the increasing of engine load leads to increasing all of air pollutant, increasing of power and decreasing of brake specific fuel consumption. Both the Cetane number and flash point are independent from engine speed and engine load. The present paper shows that the effect of silica with high percentage of n-Butanol and high injection timing are better than other additives soot emissions which are getting decreased. Moreover, these additives along with low injection timing are more suitable for increasing the brake specific fuel consumption.