Gotowe bibliografie tematyczne / Biodiesel fuelled compression ignition engine

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Gotowa bibliografia na temat „Biodiesel fuelled compression ignition engine”

Autor: Grafiati

Data publikacji: 6 września 2023

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Artykuły w czasopismach na temat "Biodiesel fuelled compression ignition engine"

Deshmukh, Gopal Kumar, Ammenur Rehman i Rajesh Gupta. "Experimental Investigations of a Compression-Ignition Engine Fuelled with Transesterified-Jatropha BiodieselDiesel Blend". July 2021 40, nr 3 (1.07.2021): 474–81. http://dx.doi.org/10.22581/muet1982.2103.02.

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Jatropha-curcas biodiesel has recently been considered as one of the potential renewable energy sources in Asia. This biodiesel is produced through the transesterification process of the non-edible oil obtained from Jatropha-curcas. The properties of this biodiesel are quite similar to those of diesel fuel. However, high viscosity of pure Jatropha-curcas biodiesel adversely affects engine performance. Hence, the percentage of Jatrophacurcas biodiesel that will not cause any adverse effect on the engine must be determined. In this context, this paper experimentally investigates the performance and exhaust emission characteristics of a direct injection compression ignition engine fuelled with 25%, 50% and 100% volume basis Jatropha-curcas biodiesel with diesel. Results showed that the Jatropha-curcas biodiesel and its blends demonstrated lower values for brake thermal efficiency and exhaust emission levels than diesel, but not for nitrogen oxide levels and brake specific fuel consumption. It was observed that the blend containing 25% Jatropha-curcas biodiesel (BD25) was the best alternative for diesel fuel based on engine emissions and overall performance. Therefore, BD25 could be considered a potential alternative fuel for compression ignition engines.

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Agarwal, A. K., J. Bijwe i L. M. Das. "Wear Assessment in a Biodiesel Fueled Compression Ignition Engine". Journal of Engineering for Gas Turbines and Power 125, nr 3 (1.07.2003): 820–26. http://dx.doi.org/10.1115/1.1501079.

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Biodiesel is prepared using linseed oil and methanol by the process of transesterification. Use of linseed oil methyl ester (LOME) in a compression ignition engine was found to develop a highly compatible engine-fuel system with low emission characteristics. Two similar engines were operated using optimum biodiesel blend and mineral diesel oil, respectively. These were subjected to long-term endurance tests. Lubricating oil samples drawn from both engines after a fixed interval were subjected to elemental analysis. Quantification of various metal debris concentrations was done by atomic absorption spectroscopy (AAS). Wear metals were found to be about 30% lower for a biodiesel-operated engine system. Lubricating oil samples were also subjected to ferrography indicating lower wear debris concentrations for a biodiesel-operated engine. The additional lubricating property of LOME present in the fuel resulted in lower wear and improved life of moving components in a biodiesel-fuelled engine. However, this needed experimental verification and quantification. A series of experiments were thus conducted to compare the lubricity of various concentrations of LOME in biodiesel blends. Long duration tests were conducted using reciprocating motion in an SRV optimol wear tester to evaluate the coefficient of friction, specific wear rates, etc. The extent of damage, coefficient of friction, and specific wear rates decreased with increase in the percentage of LOME in the biodiesel blend. Scanning electron microscopy was conducted on the surfaces exposed to wear. The disk and pin using 20% biodiesel blend as the lubricating oil showed lesser damage compared to the one subjected to diesel oil as the lubricating fluid, confirming additional lubricity of biodiesel.

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Falbo, Luigi, i Ernesto Ramundo. "Performance Analysis of a Biodiesel-Fired Engine for Cogeneration". E3S Web of Conferences 312 (2021): 08013. http://dx.doi.org/10.1051/e3sconf/202131208013.

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The continuous demand to reduce both the pollutant emissions and the greenhouse gas (GHG) is increasing the use of alternative fuels as biodiesel in direct-injection compression ignition engines under combined heat and power (CHP) configuration. Although the biodiesel has different thermophysical properties compared to the standard diesel, it can be used in compression ignition engines without significant modifications. However, the pure biodiesel and biodiesel/diesel blends provide different performance and combustion characteristics with respect to the standard diesel engine. In order to estimate the behaviour of a micro-CHP system fuelled with biodiesel, a zero dimensional (0D) numerical model was development. This model is based on a single zone model and predicts the behaviour of a biodiesel/diesel blend-fired engine at full and partial load in terms of electrical efficiency, thermal efficiency and specific fuel consumption. Notwithstanding the biodiesel/diesel blend reveals lower performance in terms of electric and thermal efficiencies, can be used in CHP systems preserving the environmental sustainability avoiding significant modifications in the engine architecture.

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Peng, De-Xing. "Tribological and emission characteristics of indirect ignition diesel engine fuelled with waste edible oil". Industrial Lubrication and Tribology 68, nr 5 (8.08.2016): 554–60. http://dx.doi.org/10.1108/ilt-10-2015-0151.

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Purpose Energy is the prime mover of economic growth and is vital to the sustenance of a modern economy. Future economic growth depends heavily on the long-term availability of energy from sources that are affordable, accessible and environmentally friendly. Regulating the sulfur content in diesel fuel is expected to reduce the lubricity of these fuels, which may result in increased wear and damage of fuel injection systems in diesel engines. Design/methodology/approach The tribological properties of the biodiesels as additive in pure petro-diesel are studied by ball-on-ring wear tester to find optimal concentration, and the mechanism of the reduction of wear and friction will be investigated by optical microscopy. Findings Studies have shown that low concentrations of biodiesel blends are more effective as lubricants because of their superior polarity. Using biodiesel as a fuel additive in a pure petroleum diesel fuel improves engine performance and exhaust emissions. The high biodegradability and superior lubricating property of biodiesel when used in compression ignition engines renders it an excellent fuel. Originality/value This detailed experimental investigation confirms that biodiesel can substitute mineral diesel without any modification in the engine. The use of biofuels as diesel engine fuels can play a vital role in helping the developed and developing countries to reduce the environmental impact of fossil fuels.

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Fasogbon, S. K., N. B. Jagunmolu, A. O. Adeyera, A. D. Ogunsola i O. O. Laosebikan. "Emission Pattern of Compression Ignition Engine Fueled with Blends of Tropical Almond Seed Oil-Based Biodiesel using Artificial Neural Network". Engineering and Technology Research Journal 6, nr 2 (2.09.2021): 48–59. http://dx.doi.org/10.47545/etrj.2021.6.2.084.

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Engine pollutants have been a significant source of concern in most countries around the world because they are one of the major contributors to air pollution, which causes cancer, lung disorders, and other severe illnesses. The need to reduce emissions and its consequences has prompted studies into the emission profile of internal combustion engines running on particular fuels. To this end, this study employed the power of Artificial Neural Networks (ANNs) to investigate the impact of injection timing on the emission profile of Compression Ignition Engines fuelled with blends of Tropical Almond Seed Oil based-biodiesel; by conducting a series of experimental tests on the engine rig and using the results to train the ANNs; to predict the emission profile to full scale. Blend percentages, load percentages, and injection timings were used as input variables, and engine emission parameters were used as output variables, to train the network. The results showed that injection timing affect emission output of CI engines fuelled with Tropical Almond Oil based biodiesel; and for the emission pattern to be friendly, injection timing must rather be retarded and not advanced. The results also showed that for different engine emission parameters, there is a strong association between the ANN output results and the actual experimental values; with mean relative error values less than 10%, which fall within the acceptable limits. For emission of CI engines fuelled with Tropical Almond Oil based biodiesel to be friendly in pattern, injection timing must be relatively retarded. The study also concluded that Artificial Neural Network (ANN) is a reliable tool for predicting Compression Ignition Engines emission profiles.

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Gram Shou, Jean Paul, Marcel Obounou, Rita Enoh Tchame, Mahamat Hassane Babikir i Timoléon Crépin Kofané. "Combustion Characteristics and NO Formation Characteristics Modeling in a Compression Ignition Engine Fuelled with Diesel Fuel and Biofuel". Journal of Combustion 2021 (18.11.2021): 1–13. http://dx.doi.org/10.1155/2021/7111040.

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Compression ignition engine modeling draws great attention due to its high efficiency. However, it is still very difficult to model compression ignition engine due to its complex combustion phenomena. In this work, we perform a theoretical study of steam injection being applied into a single-cylinder four-strokes direct-injection and naturally aspirated compression ignition engine running with diesel and biodiesel fuels in order to improve the performance and reduce NO emissions by using a two-zone thermodynamic combustion model. The results obtained from biodiesel fuel are compared with the ones of diesel fuel in terms of performance, adiabatic flame temperatures, and NO emissions. The steam injection method could decrease NO emissions and improve the engine performances. The results showed that the NO formation characteristics considerably decreased and the performance significantly increased with the steam injection method. The relative errors for computed nitric oxide concentration values of biodiesel fuel and diesel fuel in comparison to the measured ones are 2.8% and 1.6%, respectively. The experimental and theoretical results observed show the highly satisfactory coincidences.

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Agarwal, Avinash Kumar, Tarun Gupta i Abhishek Kothari. "Particulate emissions from biodiesel vs diesel fuelled compression ignition engine". Renewable and Sustainable Energy Reviews 15, nr 6 (sierpień 2011): 3278–300. http://dx.doi.org/10.1016/j.rser.2011.04.002.

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Radu, Bogdan, Alexandru Racovitza i Radu Chiriac. "On the assessment of autoignition delay for Diesel fuel and Biodiesel B20". MATEC Web of Conferences 234 (2018): 03002. http://dx.doi.org/10.1051/matecconf/201823403002.

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The use of bio-fuels is a necessity nowadays, regulated by European legislation, which imposes to the EU-countries an increase in the substitution rate of classic fossil Diesel fuel. Biodiesel (B) fuel proves to be a reliable agent to fulfil this requirement, but a certain number of aspects have to be ameliorated regarding the compatibility of this kind of fuel with the existent compression ignition engines. One of these problems relies on the autoignition delay, on which the research results are still dispersed. The paper proposes an analysis of this autoignition delay when using a compression ignition (CI) engine fuelled with Diesel fuel and with blends of Diesel and Biodiesel fuels (B20 – 20% volumetric fraction of Biodiesel), starting from several correlations given by the literature, which are based on single-cycle analysis and application of the integral Livengood-Wu method. The obtained results offer an image of the in-cylinder processes complexity and of the B20 fuel behaviour related to the tested engine operation.

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C, Vijayakumar, Murugesan A, Subramaniam D i Panneerselvam N. "An Experimental Investigation of Diesel Engine Fuelled with MgO Nano Additive Biodiesel - Diesel Blends". Bulletin of Scientific Research 1, nr 2 (16.11.2019): 28–34. http://dx.doi.org/10.34256/bsr1924.

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In this experimental investigation compacts the performance and emissions of compression ignition engines fuelled with MgO nano additive, maducaindica bio diesel blends were examined. Based upon the previous literatures only 20% mahuca methyl ester fuel blends without nano additives is suitable for compression ignition engine without affecting engine efficiency and its characteristics. In this paper magnesium oxide nano additives are added into the 40% Mahucaindica biodiesel- diesel blends at the rate of 50ppm for developing the test fuels. In this nano additives improve the properties of diesel fuel like viscosity, calorific value and decreased the flash point and fire point. Then compared the performance and emissions differences of all blended fuels used as a fuel in a diesel engine. The observation of results, 40MgO + 50ppm blended fuels brake thermal efficiency is improved then CO, HC, CO2and smoke decreased compared to other fuel blends. The results are taken into account, a blend of 40MgO+ Mgo50ppm is the best blend ratio compared than other blends with nano additives.

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C, Ramesh, Murugesan A i Vijayakumar C. "Reducing the Environmental Pollution from Diesel Engine Fuelled with Eco- Friendly Biodiesel Blends". Bulletin of Scientific Research 1, nr 2 (16.11.2019): 35–44. http://dx.doi.org/10.34256/bsr1925.

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Diesel engines are widely used for their low fuel consumption and better efficiency. Fuel conservation, efficiency and emission control are always the investigation points in the view of researchers in developing energy system. India to search for a suitable environmental friendly alternative to diesel fuel. The regulated emissions from diesel engines are carbon monoxide (CO), Hydrocarbons (HC), NOx and Particulate matter. It creates cancer, lungs problems, headaches and physical and mental problems of human. This paper focuses on the substitution of fossil fuel diesel with renewable alternatives fuel such as Biodiesel. Biodiesel is much clear than fossil diesel fuel and it can be used in any diesel engine without major modification. The experiment was conducted in a single-cylinder four-stroke water-cooled 3.4 kW direct injection compression ignition engine fueled with non-edible Pungamia oil biodiesel blends. The experimental results proved that up to 40% of Pungamia oil biodiesel blends give better results compared to diesel fuel. The AVL 444 di-gas analyzer and AVL 437 smoke meter are used to measure the exhaust emissions from the engine. The observation of results, non-edible Pongamia biodiesel blended fuels brake thermal efficiency (3.59%) is improved and harmful emissions like CO, unburned HC, CO2, Particulate matter, soot particles, NOx and smoke levels are 29.67%, 26.65%, 33.47%, 39.57%, +/- 3.5 and 41.03% is decreased respectively compared to the diesel fuel. This is due to biodiesel contains the inbuilt oxygen content, ignition quality, carbon burns fully, less sulphur content, no aromatics, complete CO2 cycle.

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Rozprawy doktorskie na temat "Biodiesel fuelled compression ignition engine"

Crawford, Morgan H. "Feasibility and Emissions of Compression Ignition Engines Fueled with Waste Vegetable Oil". [Tampa, Fla.] : University of South Florida, 2003. http://purl.fcla.edu/fcla/etd/SFE0000193.

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Islam, Muhammad Aminul. "Microalgae: An alternative source of biodiesel for the compression ignition (CI) engine". Thesis, Queensland University of Technology, 2014. https://eprints.qut.edu.au/79551/4/Muhammad%20Aminul%20Islam%20Thesis.pdf.

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This thesis is a comprehensive study of microalgae biodiesel for the compression ignition engine. It examines microalgae growing conditions, the extraction process and physiochemical properties with a wide range of microalgae species. It also evaluates microalgae biodiesel with regards to engine performance and emission characteristics and explains the difficulties and potentiality of microalgae as a biodiesel. In doing so, an extensive analysis of different extraction methods and engine testing was conducted and a comprehensive study on microalgae biodiesel is presented.

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Kevric, Arman. "Combustion characteristics of a compression ignition engine running on biodiesel and gasoline blended fuels". Thesis, University of Nottingham, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.605993.

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An experimental investigation of the effects of fuel composition on the ignition delay and heat release characteristics of a light duty, automotive compression ignition engine has been carried out. The ignition delay is defined as the period between the start of the main fuel injection event and the start of combustion (SOC). The research has covered a range of fuel types and blends to maximise the effects of composition on the ignition delay and heat release. The fuels used were diesel, gasoline and FAME (Fatty Acid Methyl Esters) produced from rapeseed oil, coconut oil and waste cooking oil. All the engine test studies were carried out using a 2.4 litre displacement, direct injection Ford Puma engine, at test conditions representing low load, mid load and high load at 2000rpm, with EGR rates of up to 35%. Single equation, semi-empirical ignition delay models based upon the Arrhenius equation were studied and developed to fit the experimental ignition delay data, and thus incorporate fuel composition effects. Fuel composition is shown to affect the duration of the ignition delay, but after the start of combustion the heat release characteristics, for a given energy supplied in fuel, proved to be relatively insensitive to fuel composition effects. The premixed fraction is shown to be directly proportional to the ignition delay. The ignition delay of biodiesel fuel is up to 15% shorter than diesel while a gasoline blend of 50% gasoline/50% diesel lengthens the ignition delay by up to 30% with respect to diesel. These differences in the ignition delay affect the engine thermal efficiency by up to 2% due to combustion phasing effects. Gasoline fuel blended up to 80% (by volume) with diesel was combusted successfully, resembling PCCI (Premixed Charged Compression Ignition) combustion regimes, while biodiesel fuel types RME (Rapeseed Methyl Esters), CME (Coconut Methyl Esters) and WCO (Waste Cooking Oil Methyl Esters) all showed differences in heat release characteristics due to ignition delay differences. Calibration changes are necessary to compensate for the fuel composition effects on the ignition delay and subsequent combustion characteristics. An engine specific, single equation ignition delay model was developed that successfully described the experimental ignition delay data over the fuel range of fuel composition: rID = 4.32p-l.02/'P-O.2exp (:;) where EA = A.Kevric University of Nottingham , ' )t8186 . Based upon the analysis of combustion characteristics of the experimental CN+ZS) data, the initial form of a universal ignition delay model was developed, composing of a physical delay portion and a chemical delay portion. A.

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Panakarajupally, Ragavendra Prasad. "A COMPUTATIONAL INVESTIGATION OF INJECTION STRATEGIES AND SENSITIVITY ANALYSIS OF AN ETHANOL FUELLED PPCI ENGINE". University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1468517270.

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Weall, Adam James. "Characteristics of partially-premixed compression-ignition combustion using diesel, biodiesel and gasoline in a multi-cylinder direct-injection diesel engine". Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608565.

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Oberstein, S. "Performance study of a compression ignition engine fuelled with biodiesel and ethanol". Thesis, 2008. https://eprints.utas.edu.au/21069/1/whole_ObersteinSteffen2008_thesis.pdf.

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Biodiesel and ethanol are recognized as a potential fuel of the future with several environmental advantages. While several published literature details the practical uses and applications of ethanol, little or no evidence is available in the public domain on the dual fuel mixture with biodiesel and ethanol and associated engine performance. There is a large established diesel infrastructure on remote islands powered by generators. A good understanding of exhaust gas emissions by these generators can provide useful information on the environmental implication of emissions. There is an established knowledge on the quantitative reduction of harmful emissions when using biodiesel and ethanol. This knowledge can forecast the state of the engine performance and the other detrimental health effects it can have on the general population. A good understanding of the quantitative and qualitative trends is available in the literature, for Cl engines run on biodiesel, as established knowledge. However, information of the reduced emissions and fuel consumption, using biodiesel and ethanol mixture is not extensively available in the public domain. Manufacturers of diesel generators have specific data available for use of biodiesel but the use and performance of their generators using dual fuels is not discussed. In this thesis, rigorous design and modifications for conversion of a Kubota generator to run on biodiesel-ethanol dual fuel system is proposed and built from first principles. The test rig development associated with the calculations for fuel flow rates and associated engine management systems will be integral part of this overall systematic design. As part of this investigation an innovative fuel injection system, to accommodate biodiesel and ethanol, is designed and incorporated. Data acquisition systems to measure on-line measurements of engine performance such as the Brake Specific Fuel Consumption (BSFC) and emissions will be developed as part of this work. In this investigation a comprehensive range of engine operating conditions will tested using both biodiesel-ethanol dual fuel. Over the range of engine operating conditions, emissions will be measured using on-board gas analyzer for systematic injection and increase of ethanol mixture. In this work, emissions such as Hydro Carbons (HC), carbon dioxide, carbon monoxide and Nox are measured. The qualitative and quantitative comparison of harmful emissions for B100 biodiesel and various ratios of ethanol mixture in the blends will be carried out. The discussions will highlight the specific benefits, if any, of injecting ethanol and biodiesel. This work is a step towards understanding the levels of decreased emissions using bio-fuels and establishing qualitative and quantitative trends of engine performance on a sound mathematical and quantitative basis.

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Teise, Heinrich Richardt. "Performance optimisation of a compression ignition engine fuelled on Ethanol". Thesis, 2006. http://hdl.handle.net/10539/1660.

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Student Number : 9506932W - MSc research report - School of Mechanical Engineering - Faculty of Engineering and the Built Environment
In this research project, the performance and emissions of a conventional compression ignition engine fuelled on ethanol as main fuel and dimethyl ether as ignition promoter were investigated. Tests were first conducted on diesel fuel, then on ethanol fuel with dimethyl ether and compared. All tests for both fuelling techniques were conducted at the same engine speed and injector pressure. However, engine settings with specific reference to injection timing and injector pressure were optimised to suit diesel fuel, and were left unaltered when the engine was fuelled on ethanol and dimethyl ether. The injector nozzle configuration used for diesel fuel was a standard three-hole type nozzle, whereas for ethanol fuel with dimethyl ether a standard three-hole nozzle as well as a four-hole type nozzle was used. Also investigated was the effect a catalytic converter would have on exhaust emissions, from both fuelling techniques. The performance results of ethanol/dimethyl ether fuel compared favourably to that of diesel fuel. The brake power attained for both fuelling techniques was approximately the same, however the only penalty incurred to this desired result was the simultaneous increase in the brake specific fuel consumption of ethanol/dimethyl ether fuel. The fuel conversion efficiency of ethanol/dimethyl ether fuel was also found to be lower than that of diesel fuel, this largely attributed to the difference in energy release patterns between the two fuels. The emissions results obtained showed that ethanol/dimethyl ether fuel burns cleaner, mainly due to its chemical structure containing oxygen molecules. The NOx, THC, CO and CO2 emissions, produced before the catalytic converter, of ethanol/dimethyl ether fuel were lower than those of diesel fuel. The catalytic converter further produced lower emissions, with the four-hole type nozzle producing the most desired results. In terms of catalytic converter efficiency, THC and CO emissions were more readily removed compared to NOx. In addition, virtually no smoke emissions were detected for ethanol/dimethyl ether fuel combustion.

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Onoji, Samuel Erhigare. "Synthesis of Biodiesel from rubber seed oil for internal compression ignition engine". Thesis, 2017. https://hdl.handle.net/10539/25498.

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ABSTRACT Biodiesel has been identified as a good complement and plausible replacement of fossil diesel because of the overwhelming characteristic properties similar to fossil diesel in addition to its good lubricity, biodegradability, non-toxicity and eco-friendliness when used in diesel engines. The production of biodiesel from edible vegetable oils competes with food sources, thereby resulting in high cost of food and biodiesel. Studies have shown that rubber seed contains 35 45 % oil, which portrays a better competitor to other non-edible oil bearing plants in biodiesel production. In this study, non-edible vegetable oils from underutilized Nigerian NIG800 clonal rubber seeds were extracted from 0.5 mm kernel particle size using n-hexane as solvent to obtain a yield of 43 wt.% over an extraction time of 1 h. The oil was characterized for fatty acids by using gas chromatography-mass spectrometry (GC-MS), and for structural properties by Fourier transform-infrared (FT-IR) and nuclear magnetic resonance (NMR) analyses. The optimization of the process conditions of the vegetable oil extraction was evaluated using response surface methodology (RSM) and artificial neural network (ANN) techniques both of which, were based on a statistically designed experimentation via the Box-Behnken design (BBD). A three-level, three-factor BBD was employed using rubber seed powder (X1), volume of n-hexane (X2) and extraction time (X3) as process variables. The RSM model predicted optimal oil yield of 42.98 wt. % at conditions of X1 (60 g), X2 (250 mL) and X3 (45 min) and experimentally validated as 42.64 wt. %. The ANN model predicted optimal oil yield of 43 wt. % at conditions of X1 (40 g), X2 (202 mL) and X3 (49.99 min) and validated as 42.96 wt. %. Both models were effective in describing the parametric effect of the considered operating variables on the extraction of oil from the rubber seeds. On further examinations of the potentials of the vegetable oil, the kinetics of thermo-oxidative degradation of the oil was investigated. The kinetics produced a first-order reaction, with activation energy of 13.07 kJ/mol within the temperature range of 100 250 oC. In a bid to attain enhanced yield of biodiesel produced via heterogeneous catalysis, coupled with the carbonaceous potentials of the pericarp and mesocarp of rubber seed shell casing as a suitable catalytic material, the rubber seed shells (RSS) were used to develop a heterogeneous catalyst. RSS was washed 3 4 times with hot distilled water, dried at 110 oC for 5 h, ground to powder, and calcined at 800 oC at a heating rate of 10 oC/min as a catalyst and analyzed for thermal, structural, and textural properties using thermogravimetric analyzer, x-ray diffractometer, and nitrogen adsorption/desorption analyzer, respectively. The catalyst was further analyzed for elemental compositions and surface morphology by x-ray fluorescence and scanning electron microscopy, respectively. The catalyst was then applied in biodiesel production from rubber seed oil. A central composite design (CCD) was employed together with RSM and ANN to obtain optimal conditions of the process variables consisting of reaction time, methanol/oil ratio, and catalyst loading on biodiesel yield. The optimum conditions obtained using RSM were as follows: reaction time (60 min), methanol/oil ratio (0.20 vol/vol), and catalyst loading (2.5 g) with biodiesel yield of 83.11% which was validated experimentally as 83.06 0.013%. Whereas, those obtained via ANN were reaction time (56.7 min), methanol/oil ratio (0.21 vol/vol), and catalyst loading (2.2 g) with a biodiesel yield of 85.07%, which was validated experimentally as 85.03 0.013%. The characterized biodiesel complied with ASTM D 6751 and EN 14214 biodiesel standards and was used in modern diesel test engine without technical modifications. Though the produced biodiesel has a lower energy content compared with conventional diesel fuel, in all the cases of blends considered, the optimal engine speed for higher performance and lower emissions was observed at 2500 rpm. In this study, the B20 blend has best engine performance with a lower emission profile, and was closely followed by B50 blend.
EM2018

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McTaggart-Cowan, Gordon. "The application of exhaust gas recirculation to a single cylinder compression ignition engine fuelled with natural gas". Thesis, 2002. http://hdl.handle.net/2429/12155.

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Reducing the emissions of Nitric Oxides from diesel engines is one of the main challenges facing diesel engine designers. Many different methods have been investigated for reducing NO₂ emissions, including exhaust gas recirculation (EGR) and the high pressure direct injection (HPDI) of natural gas. Combining these two techniques offers the potential to reduce NO₂ emissions further than either method can individually. To test the effects of EGR on an HPDI engine, the University of British Columbia's Alternate Fuels Research Group recently received a new Cummins ISX heavy-duty truck engine, modified for single-cylinder operation. The new engine was commissioned on HPDI and a series of tests were run to compare its performance and emissions to a six-cylinder HPDI engine. These results showed good agreement for performance, but some significant differences in emissions between the two engines. Although emissions data are not directly transferable to a six-cylinder engine, the trends and general effects identified through testing on the single cylinder engine should be applicable to all HPDI engines. The new engine has also been used to study the combination of EGR and HPDI. While of a preliminary nature, the results indicate that significant NO₂ reductions can be achieved, with the greatest effects being found at low-speed, moderate-load operating conditions. Reductions in NO₂ emissions of as much as an order of magnitude were detected, but these extreme reductions came at the price of increased hydrocarbon emissions and reduced engine performance. More moderate reductions in NO₂ can be achieved with little penalty in either performance or emissions.

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Lopes, Paulo Miguel Pereira. "A comparative study of the combustion characteristics of a compression ignition engine fuelled on diesel and dimethyl ether". Thesis, 2007. http://hdl.handle.net/10539/2143.

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Student Number : 9707408V - MSc(Eng) research report - School of Mechanical, Industrial and Aeronautical Engineering - Faculty of Engineering and the Built Environment
This research is an investigation into the performance and combustion characteristics of a two-cylinder, four-stroke compression ignition engine fuelled on diesel and then on dimethyl ether (DME). Baseline tests were performed using diesel. The tests were then repeated for dimethyl ether fuelling. All DME tests were performed at an injection opening pressure of 210 bar, as recommended for diesel fuelling. The tests were all carried out at constant torque with incremental increases in speed and an improved method of measuring the DME flow rate was devised. It was found that the engine’s performance characteristics were very similar, regardless of whether the engine was fuelled on diesel or DME. Brake power, indicated power and cylinder pressure, during the highest loading condition of 55 Nm, were virtually identical for diesel and DME fuelling, with the most significant finding being that the engine was more efficient when fuelled on DME than when fuelled with diesel. Another interesting finding was that the energy release of diesel decreases with increasing load, whilst the energy release of DME increases with increasing load. At the highest loading condition of 55 Nm, the energy release of DME was approximately 210 joules higher than that of diesel. This investigation concluded that DME may definitely be a suitable substitute fuel for diesel.

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Części książek na temat "Biodiesel fuelled compression ignition engine"

Wasiu, Saheed. "Biodiesel-Fuelled Direct Injection Compression Ignition Engine". W Energy Efficiency in Mobility Systems, 181–97. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0102-9_9.

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Mofijur, M., M. G. Rasul, N. M. S. Hassan, M. M. K. Khan i H. K. Rashedul. "Gaseous and Particle Emissions from a Compression Ignition Engine Fueled with Biodiesel–Diesel Blends". W Application of Thermo-fluid Processes in Energy Systems, 35–56. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-0697-5_2.

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Murali Krishna Prasad, K., P. Sravani, Upendra Rajak, Sk Mohammad Shareef, Prem Kumar Chaurasiya, Nitin Malviya i Pawan Yadav. "Experimental Investigation of Performance and Emission Characteristics of Direct-Injection Compression-Ignition Engine Fuelled with Pond Water Algae Biodiesel". W Lecture Notes in Mechanical Engineering, 911–18. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7909-4_85.

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Sharma, Priybrat, i Atul Dhar. "Advances in Hydrogen-Fuelled Compression Ignition Engine". W Prospects of Alternative Transportation Fuels, 55–78. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-7518-6_5.

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Kapilan, N. "Biodiesel: A Sustainable Energy Source for Compression Ignition Engine". W Food-Energy-Water Nexus Resilience and Sustainable Development, 125–39. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-40052-1_6.

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Khoa, Nguyen Xuan, Yanuandri Putrasari, Dinh Nam Vu, Nguyen Ho Xuan Duy i Ocktaeck Lim. "The Effect of Control Strategies on the Gasoline Compression Ignition (GCI) Engine: Injection Strategy, Exhaust Residual Gas Strategy, Biodiesel Addition Strategy, and Oxygen Content Strategy". W Gasoline Compression Ignition Technology, 27–71. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8735-8_3.

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Jayakumar, T., J. Arunprasad, R. Thirugnanasambantham, R. Rajesh, S. Sugumar i T. Elango. "Performance and Emissions Characteristics of Soyabean Biodiesel in Compression Ignition Engine". W Lecture Notes in Mechanical Engineering, 13–22. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0244-4_2.

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Garg, Akshay, Balendra V. S. Chauhan, Ajitanshu Vedrantam, Siddharth Jain i Sawan Bharti. "Potential and Challenges of Using Biodiesel in a Compression Ignition Engine". W Energy, Environment, and Sustainability, 289–317. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8414-2_9.

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Kaisan, Muhammad Usman, Shitu Abubakar, Fatai Olukayode Anafi, Samaila Umaru, P. Mohamed Shameer, Umar Ali Umar, Sunny Narayan, P. Mohamed Nishath i J. Senophiyah Mary. "Modelling and Simulation of Biodiesel from Various Feedstocks into Compression Ignition Engine". W Energy Recovery Processes from Wastes, 101–13. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9228-4_9.

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Nageswar Reddy, V., G. Sreenivasarao i K. Thirupati Reddy. "Modeling and Analysis of Compression Ignition Engine Performance and Emissions of Biodiesel". W Lecture Notes in Mechanical Engineering, 69–78. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-7557-0_6.

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Streszczenia konferencji na temat "Biodiesel fuelled compression ignition engine"

Agarwal, Avinash Kumar, Jayashree Bijwe i L. M. Das. "Wear Assessment in a Biodiesel Fuelled Compression Ignition Engine". W ASME 2001 Internal Combustion Engine Division Spring Technical Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/ices2001-131.

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Abstract Biodiesel is prepared using linseed oil and methanol by the process of transesterification. Use of linseed oil methyl ester (LOME) in compression ignition engine was found to develop a highly compatible engine-fuel system with low emission characteristics. Two similar engines were operated using optimum biodiesel blend and mineral diesel oil respectively. These were subjected to long-term endurance tests. Lubricating oil samples drawn from both engines after a fixed interval were subjected to elemental analysis. Quantification of various metal debris concentrations was done by atomic absorption spectroscopy (AAS). Wear metals were found to be about 30% lower for biodiesel-operated engine system. Lubricating oil samples were also subjected to ferrography indicating lower wear debris concentrations for biodiesel-operated engine. The additional lubricating property of LOME present in the fuel resulted in lower wear and improved life of moving components in biodiesel-fuelled engine. However, this needed experimental verification and quantification. A series of experiments were thus conducted to compare the lubricity of various concentrations of LOME in biodiesel blends. Long duration tests were conducted using reciprocating motion in SRV optimol wear tester to evaluate the coefficient of friction, specific wear rates, etc. The extent of damage, coefficient of friction, and specific wear rates decreased with increase in the percentage of LOME in the biodiesel blend. Scanning Electron microscopy was conducted on the surfaces exposed to wear. The disc and pin using 20% biodiesel blend as lubricating oil showed lesser damage compared to the one subjected to diesel oil as lubricating fluid, confirming additional lubricity of biodiesel.

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Srivastava, Dhananjay Kumar, Avinash Kumar Agarwal i Tarun Gupta. "Particulate Characterization of Biodiesel Fuelled Compression Ignition Engine". W International Mobility Engineering Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2009. http://dx.doi.org/10.4271/2009-28-0018.

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Agarwal, Avinash Kumar. "Lubricating Oil Tribology of a Biodiesel-Fuelled Compression Ignition Engine". W ASME 2003 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ices2003-0609.

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Biodiesel is an alternative fuel derived from vegetable oils by modifying their molecular structure through transesterification process. Linseed oil methyl ester (LOME) was prepared using methanol in the presence of potassium hydroxide as catalyst. Use of linseed oil methyl ester in compression ignition engines was found to develop a very compatible engine-fuel system with lower emission characteristics. Two identical engines were subjected to long-term endurance tests, fuelled by optimum biodiesel blend (20% LOME) and diesel oil respectively. Various tribological studies on lubricating oil samples drawn at regular intervals for both engines were conducted in order to correlate the comparative performance of the two fuels and the effect of fuel chemistry on lubricating oil performance and life. A number of tests were conducted in order to evaluate comparative performance of the two fuels such as density measurement, viscosity measurements, flash point determination, moisture content determination, pentane and benzene insolubles, thin layer chromatography, differential scanning calorimetry etc. All these tests were used for indirect interpretation of comparative performance of these fuels. Biodiesel fuels performance is found to be superior to that of diesel oil and the lubricating oil life is found to have increased, while operating the engine on this fuel. NOTE: This paper was presented at the ASME 2003 Internal Combustion Engine Division Spring Technical Conference but was printed in the ASME 2003 Internal Combustion Engine and Rail Transportation Divisions Fall Technical Conference proceedings, pages 427–441. It should appear under the Lubrication and Friction heading.

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Purohit, C., i K. Aung. "Numerical Simulation of a Compression Ignition Engine Using Biodiesel Fuel". W ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47037.

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Increasing concerns over pollutant emissions from diesel engines have prompted researchers to find replacement fuels for diesel engines. The use of alternative fuels such as biodiesel in compression-ignition (CI) engines is beneficial to the environment as it reduces emissions of pollutants with slight penalty on the performance. This paper investigated the use of biodiesel fuel (rapeseed oil) in a CI engine by numerical simulations. The numerical simulations were based on the models of finite heat release, cylinder heat transfer, and friction losses. Simulations were carried out to evaluate the effects of compression ratio, equivalence ratio, and engine speed on the performance of the CI engine. The results of the simulations were compared with experimental data from the literature to validate the simulations. Good agreements between the computed and experimental results were obtained. The results showed that the current model could satisfactorily predict the performance of a biodiesel-fueled CI engine.

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Datta, Ambarish, i Bijan Kumar Mandal. "Production, Performance and Emissions of Biodiesel as Compression Ignition Engine Fuel". W ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-62748.

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The enhanced use of diesel fuel and the strict emission norms for the protection of environment have necessitated finding sustainable alternative and relatively green fuels for compression ignition engines. This paper presents a brief review on the current status of biodiesel production and its performance and emission characteristics as compression ignition engine fuel. This study is based on the reports on biodiesel fuels published in the current literature by different researchers. Biodiesel can be produced from crude vegetable oil, non-edible oil, waste frying oil, animal tallow and also from algae by a chemical process called transesterification. Biodiesel is also called methyl or ethyl ester of the corresponding feed stocks from which it has been produced. Biodiesel is completely miscible with diesel oil, thus allowing the use of blends of mineral diesel and biodiesel in any percentage. Presently, biodiesel is blended with mineral diesel and used commercially as fuel in many countries. Biodiesel fueled CI engines perform more or less in the same way as that fueled with the mineral diesel. Exhaust emissions are significantly improved due the use of biodiesel or blends of biodiesel and mineral diesel. The oxides of nitrogen are found to be greater in exhaust in case of biodiesel compared to mineral diesel. But the higher viscosity of biodiesel also enhances the lubricating property. Biodiesel being an oxygenated fuel improves combustion.

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Hawi, Meshack, Mahmoud Ahmed i Shinichi Ookawara. "Modelling and Simulation of Homogeneous Charge Compression Ignition Engine Fueled by Biodiesel". W ASME 2018 Power Conference collocated with the ASME 2018 12th International Conference on Energy Sustainability and the ASME 2018 Nuclear Forum. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/power2018-7202.

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Homogeneous charge compression ignition (HCCI) is a combustion technology which has received increased attention of researchers in the combustion field for its potential in achieving low oxides of nitrogen (NOx) and soot emission in internal combustion (IC) engines. HCCI engines have advantages of higher thermal efficiency and reduced emissions in comparison to conventional internal combustion engines. In HCCI engines, ignition is controlled by the chemical kinetics, which leads to significant variation in ignition time with changes in the operating conditions. This variation limits the practical range of operation of the engine. Additionally, since HCCI engine operation combines the operating principles of both spark ignition (SI) and compression ignition (CI) engines, HCCI engine parameters such as compression ratio and injection timing may vary significantly depending on operating conditions, including the type of fuel used. As such, considerable research efforts have been focused on establishing optimal conditions for HCCI operation with both conventional and alternative fuels. In this study, numerical simulation is used to investigate the effect of compression ratio on combustion and emission characteristics of an HCCI engine fueled by pure biodiesel. Using a zero-dimensional (0-D) reactor model and a detailed reaction mechanism for biodiesel, the influence of compression ratio on the combustion and emission characteristics are studied in Chemkin-Pro. Simulation results are validated with available experimental data in terms of incylinder pressure and heat release rate to demonstrate the accuracy of the simulation model in predicting the performance of the actual engine. Analysis shows that an increase in compression ratio leads to advanced and higher peak incylinder pressure. The results also reveal that an increase in compression ratio produces advanced ignition and increased heat release rates for biodiesel combustion. Emission of NOx is observed to increase with increase in compression ratio while the effect of compression ratio on emissions of CO, CO2 and unburned hydrocarbon (UHC) is only marginal.

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Gupta, Sahil, Naveen Kumar, Dhruv Gupta i Manish Vaidyanathan. "Performance and Emission Characteristics of a Medium Capacity Compression Ignition Engine Fuelled With Mahua Biodiesel Employing Cold EGR". W ASME 2013 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icef2013-19147.

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Oil provides energy for 95% of transportation and the demand of transport fuel continues to rise. According to the assessment of IPCC (International Panel on Climate Change) to climate change, global oil demand will rise by 60% from 75 Mb/d in 2000 to 120 Mb/d in 2030. All countries including India are grappling with the problem of meeting the ever increasing demand of transport fuel with the constraints of international commitments, legal requirements, environmental concerns, and limited resources. Hence, search for renewable fuels is becoming more and more prominent for ensuring energy security and environmental protection. This has renewed the interest of scientific community to look for alternative fuels of bio-origin which can provide a feasible environmental friendly solution with improved performance characteristics. Biodiesel is produced by a chemical process known as transesterification, by which the triglycerides are reacted with alcohols, in the presence of a catalyst, to produce fatty acid alkyl esters. For quite some time focus for production of biodiesel has shifted towards non-edible oil feedstock from the edible ones, mostly due to food security issues. One such non-edible oil, locally known as Mahua in Indian subcontinent, may be evaluated as a potential feed stock for biodiesel production. The fuel properties were found to be comparable with that of diesel fuel. In the present study, mineral diesel fuel along with 20% (v/v %) blend of Mahua oil methyl ester (MOME) was prepared for conducting experiments and the performance and emission characteristics was investigated at 5%, 10%, 15% and 20% exhaust gas recirculation (EGR) rates. Major observations drawn from the exhaustive experiments is that the brake thermal efficiency (BTE) for M20 increased in comparison to diesel baseline whereas on employing cold EGR, BTE abridged with the increase in EGR rate. Unburned Hydrocarbon and Carbon monoxide emissions as well as Smoke Opacity upsurge with increase in EGR percentage. However, a considerable decline in NOx was obtained at higher EGR levels.

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Bob-Manuel, Kelvin D. H., Roy J. Crookes, Theodosios Korakianitis i Ashand M. Namasivayam. "Dual-fuel Operation of Compression-ignition Engine Using Biodiesel for Pilot Injection". W SNAME Maritime Convention. SNAME, 2012. http://dx.doi.org/10.5957/smc-2012-a10.

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Economic factor and stringent emission standards are imposing constraints on current and future operation of power plants in the maritime industry. Hence, research institutions have intensified investigation on technologies for emission control and economy using alternative and sustainable/renewable fuels to achieve friendly environment. In this study, the combustion characteristics of natural gas and hydrogen fuelled compression ignition engine operated under stable condition using either neat or emulsified rapeseed methyl ester (RME) for pilot ignition were investigated. Ignition delay and rate of cylinder pressure rise at 1000 and 1500 r/min were obtained at various gas flow rates while the emission of NOx, CO2 and HC were measured. NOx concentrations were compared with the regulated IMO MARPOL73/78 and United States Environmental Protection Agency (EPA) Tier 3 standards and were observed to be lower than the MARPOL 73/78 level at both speeds and the EPA standard at 1500 r/min for the minimum specification of category 1 engines. Emulsified RME fuel pilot injection reduced NOx emission at all test conditions using natural gas. The use of hydrogen subscribed mainly in the reduction of particulate matters (PM) and CO2 and hence will contribute in the reduction of greenhouse effect (climate change) on the environment.

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Weall, Adam, i Nick Collings. "Highly Homogeneous Compression Ignition in a Direct Injection Diesel Engine Fuelled with Diesel and Biodiesel". W JSAE/SAE International Fuels & Lubricants Meeting. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2007. http://dx.doi.org/10.4271/2007-01-2020.

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Kim, Myung Yoon, Seung Hyun Yoon, Jin Woo Hwang i Chang Sik Lee. "Characteristics of Particulate Emissions of Compression Ignition Engine Fueled With Biodiesel Derived From Soybean". W ASME 2007 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/icef2007-1715.

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An experimental investigation was performed on the effect of engine speed and EGR (exhaust gas recirculation) on the particle size distribution and exhaust gas emissions in a compression ignition engine fueled with biodiesel derived from soybean. The results obtained by biodiesel fuel were compared to those obtained by petroleum diesel fuel with sulfur contents of 16.3 ppm. The scanning mobility particle sizer (SMPS) was used for size distribution analysis and it measured mobility equivalent particle diameter in the range of 10.4 to 392.4 nm. In addition to the size distribution of the particles, exhaust emissions such as oxides of nitrogen (NOx), hydrocarbon (HC), and carbon monoxide (CO) emissions and combustion characteristics under different engine operating parameters were investigated. The engine operating parameters in terms of engine speed, EGR, injection pressure, and intake pressure were varied to investigate the individual impact of the operating parameters. As the engine speed was increased for the both fuels, the larger size particles which dominantly contributes particle mass was increased, however total numbers of particle were reduced. Comparing to petroleum diesel fuel, the combustion of biodiesel fuel in the engine reduced particle concentration of relatively larger size where most of the particle mass is found. Moreover, dramatically lower hydrocarbon and carbon monoxide emissions were found at the biodiesel fueled engine. However, the NOx emission of biodiesel fueled diesel engine shows slightly higher concentration compared to diesel fuel at the same injection timing.

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