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Добірка наукової літератури з теми "LINSEED OIL METHYL ESTER"

Автор: Grafiati
Опубліковано: 11 вересня 2023

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Статті в журналах з теми "LINSEED OIL METHYL ESTER"

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Tasić, Ana, Jelena D. Rusmirović, Jovana Nikolić, Aleksandra Božić, Vladimir Pavlović, Aleksandar D. Marinković, and Petar S. Uskoković. "Effect of the vinyl modification of multi-walled carbon nanotubes on the performances of waste poly(ethylene terephthalate)-based nanocomposites." Journal of Composite Materials 51, no. 4 (July 28, 2016): 491–505. http://dx.doi.org/10.1177/0021998316648757.

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Production of high-performance nanocomposite materials obtained from unsaturated polyester resin, based on products of the waste poly(ethylene terephthalate) recycling, and modified multi-walled carbon nanotubes is presented. Di-hydroxy functional glycolysates, synthesized by catalytic depolymerization of poly(ethylene terephthalate) with propylene glycol, were used for the unsaturated polyester resin synthesis. The structure of the obtained glycolysis product and unsaturated polyester resin were characterized by using FTIR and NMR spectroscopy, and by acid, iodine, and hydroxyl value. Nanofillers were prepared by direct and two-step amidation of oxidized multi-walled carbon nanotubes. Direct amidation with diallylamine produced multi-walled carbon nanotube-diallylamine reactive nanofiller. Two-step modification with diamines: hexamethylenediamine and p-phenylenediamine gave multi-walled carbon nanotube-hexamethylenediamine and multi-walled carbon nanotube- p-phenylenediamine nanofiller, respectively, whose amidation with methyl ester of linseed oil fatty acids gave multi-walled carbon nanotube-hexamethylenediamine/methyl ester of linseed oil fatty acid and multi-walled carbon nanotube- p-phenylenediamine/methyl ester of linseed oil fatty acid nanofiller, respectively. Influences of vinyl functionalities on mechanical properties of nanocomposite were analyzed from tensile strength ( σb), elongation ( ɛb) and Young’s modulus ( E) determination. An increase of 97.4, 119 and 139% of σb was obtained for nanocomposites with addition of 0.25 wt.% of diallylamine, p-phenylenediamine/methyl ester of linseed oil fatty acid and hexamethylenediamine/methyl ester of linseed oil fatty acid multi-walled carbon nanotubes, respectively. Short techno-economic analysis, performed on the basis of fixed and variable unsaturated polyester resin production costs, showed satisfactory potential profit, which could be realized by the implementation of the presented technology.
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Gautam, Sunil, Sangeeta Kanakraj, and Azriel Henry. "Computational approach using machine learning modelling for optimization of transesterification process for linseed biodiesel production." AIMS Bioengineering 9, no. 4 (2022): 319–36. http://dx.doi.org/10.3934/bioeng.2022023.

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<abstract> <p>In this research work, various machine learning models such as linear regression (LR), KNN and MLP were created to predict the optimized synthesis of biodiesel from pre-treated and non-treated Linseed oil in base transesterification reaction mode. Three input parameters were included for modelling, reaction time, catalyst concentrated ion, and methanol/oil-molar ratio. In biodiesel transesterification reaction 180 samples run with non-Pre-treated Linseed Methyl Ester (NPLME), Water Pre-treated Linseed Methyl Ester (WPLME) and Enzymatic Pre-treated Linseed Methyl Ester (EPLME) oil as feed stocks and optimized parameters are find out for maximum biodiesel yield to be 8:1 molar ratio, 0.4% weight catalyst, 60 °C reaction temperature.To test the technique, R<sup>2</sup> and MAPE parameters were used. The average R<sup>2</sup> values for linear regression, KNN, and MLP are 0.7030, 0.8554 and 0.7864 respectively. Moreover, the average MAPE values for these models are 11.1886, 6.0873 and 8.0669 respectively. Hence, it is observed that the KNN model outperforms other models with higher accuracy and low MAPE score.</p> </abstract>
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3

A. Jaswanth et al.,, A. Jaswanth et al ,. "Experimental Investigation on Linseed Oil Methyl Ester Fuelled Diesel Engine." International Journal of Mechanical and Production Engineering Research and Development 9, no. 3 (2019): 1563–76. http://dx.doi.org/10.24247/ijmperdjun2019165.

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4

Talib Hamzah, Husam, Veluru Sridevi, Santhosh Kumar, M. Tukaram Bai, and Venkat Rao Poiba. "METHYL ESTER (BIODIESEL) PRODUCTION FROM MICRO ALGAE AND LINSEED MIXING OIL." International Journal of Advanced Research 8, no. 6 (June 30, 2020): 759–70. http://dx.doi.org/10.21474/ijar01/11155.

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5

Nguyen Khanh Dieu, Hong, and Luong Tran Van. "Preparation and characterization of ordered mesoporous carbon based catalyst derived from sodium lignosunfonate for conversion of linseed oil to biokerosene." Vietnam Journal of Catalysis and Adsorption 9, no. 2 (July 31, 2020): 1–8. http://dx.doi.org/10.51316/jca.2020.021.

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Анотація:
The study focused on preparation and characterization of ordered mesoporous carbon based catalyst derived from sodium lignosunfonate (MSL catalyst), and its application in conversion of linseed oil to biokerosene was also briefly discussed. The preparation of the catalyst was established by condensation-evaporation method where sulfonated biochar obtained from soditum lignosulfonate, CTAB were used as precursor and template, respectively. Water solvent was gradually evaporated during the preparation yielding a gel-like mixture at the end of the process. The catalyst with ordered mesoporous structure, high acidity, and stable activity sites was applied in the conversion of linseed oil to biokerosene, and the results based on the high yield and purity of the methyl ester product illustrated the catalysts high activity and selectivity. Some techniques were applied such as SAXRD, WAXRD, FT-IR, BET-BJH, NH3-TPD and GC-MS for characterizing the catalyst and determining the composition of the linseed oil and the biokerosene.
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6

Ullah, Faizan, Asghari Bano, and Saqib Ali. "Optimization Of Protocol For Biodiesel Production Of Linseed (Linum Usitatissimum L.) Oil." Polish Journal of Chemical Technology 15, no. 1 (March 1, 2013): 74–77. http://dx.doi.org/10.2478/pjct-2013-0013.

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Анотація:
Attempts were made to optimize variables affecting the yield of linseed oil biodiesel in a base catalyzed transesterification reaction. The variables studied were reaction temperature (40-70oC), catalyst (NaOH) concentration (0.1-1.5%) and reaction time (30-180 min). The conversion of linseed oil into methyl esters was confirmed through analytical methods like 1H NMR, gas chromatography (GC) and refractometer. The maximum biodiesel yield (97±1.045% w/w) was obtained at 0.5% catalyst concentration, 65oC temperature, 180 min reaction time and 6:1 molar ratio of methanol to oil. 1H NMR confirmed the practically obtained % conversion of triglycerides into methyl esters which was further evidenced by refractometer analyses. The refractive index of biodiesel samples was lower than pure linseed oil. GC analysis confirmed the presence of linolenic acid (C18:3) as the dominant fatty acid (68 wt. %) followed by oleic acid (C18:1), linoleic acid (C18:2) and stearic acid (C18:0) respectively. The physical properties of linseed oil biodiesel like specific gravity (0.90 g/cm3) and flash point (177oC) were higher than American Society for Testing and Materials standards (ASTM 6751) for biodiesel. However, kinematic viscosity (3.752 mm2/s) was in the range of ASTM standards.
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7

Manthey, Frank A., Edward F. Szelezniak, Zbigniew M. Anyszka, and John D. Nalewaja. "Foliar Absorption and Phytotoxicity of Quizalofop with Lipid Compounds." Weed Science 40, no. 4 (December 1992): 558–62. http://dx.doi.org/10.1017/s0043174500058136.

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Experiments were conducted to determine the effect of triglycerides, free fatty acids (FFA), and fatty acid methyl esters (FAME) on the foliar absorption, translocation, and phytotoxicity of quizalofop. Absorption, translocation, and phytotoxicity of quizalofop in oats were greater when quizalofop was applied with FFA or FAME than with their respective triglycerides. Triglycerides and FFA generally enhanced quizalofop absorption and translocation more when they contained unsaturated than saturated fatty acids. Methylation of the fatty acids reduced differences among fatty acids, but methyl stearate and methyl linolenate enhanced absorption of quizalofop less than the other FAME for oats and yellow foxtail. Quizalofop absorption and phytotoxicity to oats were greater when applied with sunflower oil, sunflower oil FFA, and sunflower oil FAME than with the corresponding linseed oil derivatives. Emulsifier generally reduced differences between linseed oil and sunflower oil derivatives in their enhancement of absorption, translocation, and phytotoxicity of quizalofop.
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Drah, Abdusalam, Tihomir Kovačević, Jelena Rusmirović, Nataša Tomić, Saša Brzić, Marica Bogosavljavić, and Aleksandar Marinković. "Effect of surface activation of alumina particles on the performances of thermosetting-based composite materials." Journal of Composite Materials 53, no. 19 (March 29, 2019): 2727–42. http://dx.doi.org/10.1177/0021998319839133.

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Two types of alumina particles, commercial (c-Al2O3) and iron doped (Fe-Al2O3), were functionalized with 3-(aminopropyl)trimethoxysilane (one-step) and two-step consecutive process, i.e. firstly using 3-(aminopropyl)trimethoxysilane followed by methyl ester of linseed oil (biodiesel) to produce Al2O3ATPMS-BD reinforcement, respectively. The effect of modifier type and variable amount of alumina particles on the dynamical and mechanical properties of unsaturated polyester resin–based composites was studied. The highest improvement of the tensile strength and micro Vickers hardness, 78.1 and 163%, respectively, was obtained at 1.0 wt% of Fe-Al2O3APTMS-BD addition. The obtained multifunctional composites can be potentially applied in construction and mining industries.
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Agarwal, A. K., J. Bijwe, and L. M. Das. "Wear Assessment in a Biodiesel Fueled Compression Ignition Engine." Journal of Engineering for Gas Turbines and Power 125, no. 3 (July 1, 2003): 820–26. http://dx.doi.org/10.1115/1.1501079.

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Анотація:
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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Hoang, Tuan Anh, and Vang Van Le. "The Performance of A Diesel Engine Fueled With Diesel Oil, Biodiesel and Preheated Coconut Oil." International Journal of Renewable Energy Development 6, no. 1 (March 22, 2017): 1–7. http://dx.doi.org/10.14710/ijred.6.1.1-7.

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Анотація:
Fossil fuel crisis and depletion, environmental pollution and ever-increase in vehicle and transportation means have renewed the scientist’s interest in the world in order to look for potential alternative fuels, which are attractive such as biodiesel, bioethanol, DME and vegetable oils. Inedible vegetable oils such as coconut oil, Jatropha oil, linseed oil or animal fat are full of potential for using directly or manufacturing biodiesel. This work is carried out in order to study the four stroke diesel engine D240 performance characteristics fueled with preheated pure coconut oil (PCO), Jatropha oil methyl ester (JOME) and compare with diesel oil (DO). The test diesel engine performance such as power (Ne), torque (Me), specific fuel consumption (ge) and thermal efficiency (ηe) is determined, calculated and evaluated while using JOME, preheated PCO and compared to DO. The results show that, power (Ne), torque (Me) and thermal efficiency (ηe) while engine is fueled with JOME and PCO are lower, otherwise specific fuel consumption (ge) is higher than those of diesel fuel, the test engine performance are gained the best for JOME and PCO100.Article History: Received Dec 9, 2016; Received in revised form January 28, 2017; Accepted February 4, 2017; Available onlineHow to Cite This Article: Hoang, T.A and Le,V. V. (2017). The Performance of A Diesel Engine Fueled With Diesel Oil, Biodiesel and Preheated Coconut Oil. International Journal of Renewable Energy Development, 6(1), 1-7.http://dx.doi.org/10.14710/ijred.6.1.1-7
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Більше джерел

Дисертації з теми "LINSEED OIL METHYL ESTER"

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Stepanonytė, Dovilė. "Investigation of rape seed oil methyl ester production and by-product utilization." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070629.150117-86007.

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Анотація:
The problems of rape seed methyl ester (RME) production process by-products utilization were analyzed, statistical data for the capacities of biodiesel production and by-products generation were presented, the prospects of biodiesel production expansion, properties and environmental impact, main production technologies, Lithuanian and foreign countries experience were described, the main aims and tasks of work were defined. The investigation of glycerol – major by-product of RME production process – utilization was accomplished. One of the new possible utilization methods was researched, when combusting glycerol with highly sulphurous (~ 2.0 %) heavy fuel oil to reduce SO2 emissions, which limit value in the flue gas can not exceed 1700 mg/Nm3 (according to EU Directive 1999/32EC and LAND 43-2001 „Norms for the exhaust of pollutants from large fuel burning equipment“). The heavy fuel oil – glycerol emulsion was prepared in the pilot plant operating in the laboratory conditions, the most optimal ratio (1:1) for heavy fuel oil emulsification was estimated, the dispersivity investigation of heavy fuel oil - glycerol emulsion samples was performed. The experimental heavy fuel oil and obtained emulsion combustion investigations were carried out in VGTU Institute of Thermal Insulation pilot plant and in the thermal oxidation boiler „UMISA-CR/11,9 (13)“ at JCS „Rietavo veterinarinė sanitarija“. The CO, NOx, SO2 and particulate matter concentration values for heavy fuel oil and... [to full text]
Baigiamajame darbe išnagrinėtos rapso aliejaus metilo esterio (RME) gamybos proceso šalutinių produktų utilizacijos problemos, pateikti statistiniai duomenys apie biodyzelino gamybos bei susidarančių šalutinių produktų apimtis, aprašytos biodyzelino gamybos plėtros perspektyvos, savybės bei poveikis aplinkai, pagrindinės gamybos technologijos, Lietuvos bei užsienio šalių patirtis šioje srityje, apibrėžti pagrindiniai darbo tikslai ir uždaviniai. Atliktas RME gamybos proceso pagrindinio šalutinio produkto – glicerolio – utilizacijos tyrimas. Išanalizuotas vienas iš naujų galimų utilizavimo būdų - deginti glicerolį kartu su sieringu (~ 2,0 %) mazutu, siekiant sumažinti SO2 emisijas, kurių nustatyta ribinė vertė dūmuose negali būti didesnė kaip 1700 mg/Nm3 (pagal ES Direktyvą 1999/32EC ir LAND 43-2001 „Išmetamų teršalų ir didelių kurą deginančių įrenginių normos“). Laboratorinėmis sąlygomis stendiniame įrenginyje paruošta mazuto-glicerolio emulsija, nustatytas optimaliausias mazuto emulgavimo gliceroliu santykis (1:1), atlikti mazuto emulsijos bandinių homogeniškumo tyrimai. Eksperimentiniai mazuto bei gautų emulsijų deginimo bandymai buvo atlikti VGTU Termoizoliacijos instituto eksperimentiniame stende bei UAB „Rietavo veterinarinė sanitarija“ termooksidaciniame katile „UMISA-CR/11,9 (13)“. Išmatuotos mazuto ir mazuto-glicerolio emulsijos CO, NOx, SO2 ir kietųjų dalelių emisijos bei palygintos su jų didžiausiomis leistinoms vertėmis. Remiantis gautais rezultatais pateiktos... [toliau žr. visą tekstą]
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2

Sitorus, Henry Binsar Hamonangan. "The study of jatropha curcas oil-based biodegradable insulation materials for power transformer." Thesis, Ecully, Ecole centrale de Lyon, 2015. http://www.theses.fr/2015ECDL0022/document.

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Анотація:
Ce travail porte sur la caractérisation physico-chimique de l'huile de Jatropha Curcas et sa capacité à remplacer l'huile minérale dans les transformateurs de puissance. Ce produit présente plusieurs avantages sur les autres huiles végétales comme l'huile de palme ou l'huile de colza, qui recommandent sa production et son utilisation. En effet, la plante de Jatropha Curcas peut être cultivée sur des sols pauvres à faibles précipitations, évitant ainsi d'utiliser des sols plus fertiles pour sa culture permettant ainsi aux petits exploitants de réserver leurs terres aux cultures de base. Cette plante peut pousser facilement dans des zones où les niveaux de précipitations annuelles sont nettement inférieures à celles requises par d'autres espèces telles que le colza, le tournesol, le soja, le maïs, le palmier à huile et d'autres. Elle peut être cultivée sur tous les types de sol en Indonésie, même sur des terres arides, dans de nombreuses régions de l'Indonésie orientale, inexploitées en raison des difficultés à planter d'autres cultures. En outre, l'huile de Jatropha Curcas est un produit non alimentaire. En faisant subir à l’huile de Jatropha Curcas brute une estérification à base alcaline avec de l'hydroxyde de potassium (KOH), on obtient de l’huile de méthylester de Jatropha Curcas (JMEO) dont la viscosité et l’acidité sont acceptables pour les équipements à haute tension en particulier pour les transformateurs de puissance. Les propriétés physico-chimiques et électriques de JMEO ont été mesurées ainsi que celles de l'huile minérale (MO) pour la comparaison. Pour les propriétés physico-chimiques, il s’agit de la densité relative, la teneur en eau, la viscosité, l'acidité, l'indice d'iode, la corrosivité, le point d'éclair, le point d'écoulement, la couleur, l'examen visuel, et la teneur en ester méthylique. Quant aux propriétés électriques, elles concernent la rigidité diélectrique sous différentes formes de tension (alternative, continu et choc de foudre), les phénomènes de pré-claquage et de claquage sous choc de foudre, les décharges glissantes sur les surfaces de carton comprimé, immergé dans JMEO et MO. Les résultats obtenus montrent que les tensions de claquage moyennes en continu et en choc de foudre des huiles JMEO et MO sont très proches ; la tension de claquage moyenne de JMEO est même plus élevée que celle de l'huile minérale (de type naphténique). La mesure des tensions de claquage des mélanges d'huiles «80% JMEO + 20% MO» et «50% JMEO et 50% MO» montrent que la tension de claquage du mélange «80% JMEO + 20% MO» est toujours supérieure à celle de l'huile minérale sous tensions alternative et continue. Cela indique que le mélange d'huile minérale et de JMEO avec un rapport de 20:80 ne dégrade pas ses performances. Le mélange d'huiles peut se produire lors du remplacement de l'huile minérale par JMEO dans les transformateurs installés et en exploitation. L'analyse des caractéristiques des streamers (la forme, le temps d'arrêt, le courant associé et la charge électrique) se développant dans les huiles JMEO et MO sous tension impulsionnelle de foudre, montre une grande similitude. Aussi, la longueur finale (Lf) et la densité des branches des décharges surfaciques se propageant sur le carton comprimé immergé dans l'huile de Jatropha Curcas de méthylester (JMEO) et de l'huile minérale (MO), sous tensions de choc de foudre positif et négatif (1,2/50 μs), pour deux configurations d'électrodes divergentes (électrode pointe haute tension perpendiculaire et tangente au carton, respectivement), sont fortement influencées par l'épaisseur du carton comprimé. Pour une épaisseur donnée, Lf augmente avec la tension et décroît lorsque l'épaisseur augmente. Lf est plus long lorsque la pointe est positive que lorsque la pointe est négative. Pour une tension et une épaisseur du carton comprimé donnée, les valeurs de Lf dans l’huile minérale et l’huile JMEO sont très proches. [...]
This work is aimed at the investigation of the physicochemical characterization of Jatropha Curcas seeds oil and its capacity to be an alternative option to replace mineral oil in power transformers. This product presents several advantages that recommend both its production and usage over those of other vegetable oils as crude palm oil and rapeseeds oil. Indeed, it may be grown on marginal or degraded soils avoiding thus the need to utilize those more fertile soils currently being used by smallholders to grow their staple crops; and it will readily grow in areas where annual rainfall levels are significantly lower than those required by other species such as palm oil, rape-seeds oil, sunflower oil, soybeans oil, corn oil and others. For instance, these plants can grow on all soil types in Indonesia, even on barren soil. The barren soil types can be found in many parts of eastern Indonesia that remain untapped because of the difficulty planted with other crops. Moreover, jatropha curcas oil is nonfood crops. Jatropha Curcas oil was processed by alkali base catalyzed esterification process using potassium hydroxide (KOH) to produce Jatropha Curcas methyl ester oil (JMEO) has a viscosity and a acidity that are acceptable for high voltage equipment especially in power transformer. The physicochemical and electrical properties of JMEO were measured as well as those of mineral oil (MO) for comparison. The physicochemical properties cover relative density, water content, viscosity, acidity, iodine number, corrosivity, flash point, pour point, color, visual examination, and methyl ester content. Meanwhile the electrical properties cover dielectric strength under AC, DC and lightning impulse voltages, pre-breakdown / streamers under lightning impulse voltage, creeping discharge over pressboard immersed in JMEO and MO. The obtained results show that the average DC and lightning impulse breakdown voltages of JMEO and MO are too close, even the average AC breakdown voltage of JMEO are higher than that of mineral oil (napthenic type). The measurement of breakdown voltages of two oil mixtures namely “80% JMEO + 20% MO” and “50% JMEO and 50% MO” shows that the breakdown voltage of the first mixture (i.e., “80%JMEO+20%MO”) is always higher than that of mineral oil under both AC and DC voltages. This indicates that mixing 20:80 mineral oil to JMEO ratio does not degrade its performance. The mixing of oils can occur when replacing mineral oil by JMEO in installed transformers. The analysis of the streamers characteristics (namely; shape, stopping length, associated current and electrical charge) developing in JMEO and MO under lightning impulse voltages, shows that these are too close (similar). It is also shown that the stopping (final) length Lf and the density of branches of creeping discharges propagating over pressboard immersed in Jatropha Curcas methyl ester oil (JMEO) and mineral oil (MO), under positive and negative lightning impulse voltages (1.2/50 μs), using two divergent electrode configurations (electrode point perpendicular and tangential to pressboard), are significantly influenced by the thickness of pressboard. For a given thickness, Lf increases with the voltage and decreases when the thickness increases. Lf is longer when the point is positive than with a negative point. For a given voltage and thickness of pressboard, the values of Lf in mineral oil and JMEO are very close. It appears from this work that JMEO could constitute a potential substitute for mineral oil for electrical insulation and especially in high voltage power transformers
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3

Sala, José Antonio. "DESEMPENHO DE UM MOTOR DIESEL DE INJEÇÃO INDIRETA EM FUNÇÃO DA VARIAÇÃO DO TEOR DE B IODIESEL." Universidade Federal de Santa Maria, 2008. http://repositorio.ufsm.br/handle/1/7506.

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Анотація:
Due to the current world scenery of energy, the biodiesel presents a great potential as option to consumption of fuels of the finite sources. The largest use of the biodiesel in the world is with the methyl ester of soybean oil, due to the production scale. In general its use happens in form of blends with diesel oil in different rates. This work of research shows the influence of different levels of biodiesel blends and diesel oil. They were tested using a dynamometer hydraulic bench for evaluation of a diesel engine of 4 times with indirect injection, naturally aspirated. The fuels used were obtained by blends of soy bean methyl ester oil with conventional diesel with levels ranging from 5% to 100% biodiesel. I t hás been compared to the results obtained by different mixes with the B2 diesel oil, with no changes or adjustments in the engine. The best results of speci fic consumption were reached with blends up to 20% of biodiesel, otherwise tenors above 50% present médium consumption up to 7,2% larger than the convent ional diesel. The torque showed a declining while the ve getable fuel concentration was increased, which the worst result was present by B100 that had lost 6,8% compared to the testifier trial. The noxious exhaust ion gasses, to the environment, have the emi ssion decreased with the introduction of the biodiesel, except the NOx that presents rise when the levels of the added biodiesel are superior to 20%. The results suggest that largers tenors than 20% in the mixture (B20) demand modifications or adjustments in the motor for a better performance.
Diante do atual cenário mundial de energia, o biodiesel apresenta um grande potencial como opção ao consumo de combustíveis de fontes finitas. A maior utilização do biodiesel no mundo é com o éster metílico de óleo de soja, devido a sua escala de produção. Em geral sua utilização ocorre na forma de misturas com óleo diesel em diferentes proporções. Esse trabalho de pesquisa estuda a influência de diferentes níveis de mistura de biodiesel e diesel de petróleo sobre o desempenho e emissões do motor. Foram realizados ensaios utilizando-se um dinamômetro hidráulico de bancada para avaliação de um motor diesel de 4 tempos de injeção indireta com aspiração natural. Os combustíveis utilizados foram obtidos através da mistura de éster metílico de óleo de soja com o diesel convencional com teores variando de 5% até 100% de biodiesel. Comparou-se os resultados obtidos pelas diferentes misturas com o apresentado pelo óleo diesel B2, sem qualquer modificação ou ajuste do motor. Os melhores resultados de consumo específico foram alcançados com misturas de até 20% de biodiesel, já teores acima de 50% apresentam consumo médio até 7,2% maior que o diesel convencional. O torque apresentou um decréscimo a medida que foi aumentada a concentração de combustível de origem vegetal, sendo o pior resultado apresentado pelo B100 que teve uma perda de 6,8% em relação ao ensaio testemunha. Os gases de exaustão nocivos ao meio ambiente tem sua emissão diminuída com a introdução do biodiesel, com exceção do NOx que apresenta aumento quando os níveis de biodiesel adicionado são superiores a 20%. Os resultados sugerem que teores maiores que 20% na mistura (B20) exigem modificações ou ajustes no motor para um melhor desempenho do mesmo.
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4

Archambault, Damien. "Valorisation non alimentaire de l'huile de colza : pyrolyse de l'oléate de méthyle." Vandoeuvre-les-Nancy, INPL, 1997. http://www.theses.fr/1997INPL119N.

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Анотація:
Les esters méthyliques de l'huile de colza sont actuellement valorisés énergétiquement comme biocarburant. L’objectif de cette étude est de les valoriser chimiquement en alphaoléfines linéaires et en esters insaturés à chaine carbonée moyenne. Ces molécules à haute valeur ajoutée ont des débouchés importants dans les domaines des lubrifiants et des détergents biodégradables. Ce mémoire est divisé en deux parties : une étude expérimentale de la pyrolyse de l'oléate de méthyle et la modélisation de cette réaction. Nous avons pyrolysé dans un réacteur piston à pression atmosphérique l'oléate de méthyle dilué dans de l'azote ou dans de l'eau. La température de pyrolyse varie entre 500 et 700°C, le temps de passage entre 0,23 et 1,20 seconde et le taux de dilution est fixé à 10 moles de diluant par mole d'ester. Dans ces conditions, la pyrolyse conduit à la formation de méthane, d'éthylène, d'alphaoléfines linéaires de C3 à C18, d'esters méthyliques insaturés de C3:1 à C17:1, de monoxyde de carbone, de dioxyde de carbone, d'hydrogène et de coke. On forme également, en quantité plus faible, des paraffines linéaires, du benzène et du toluène. L’étude paramétrique a permis de définir le point de fonctionnement optimal du procédé pour la production de molécules à haute valeur ajoutée. Ce point se situe à une température de 600°C et pour des temps de passage compris entre 500 et 600 ms. La simulation à l'aide du code de calcul Chemkin d'un mécanisme radicalaire en chaine donne des résultats en accord avec les résultats expérimentaux obtenus à 600°C lors de la décomposition thermique de l'oléate de méthyle dilué dans l'azote. Pour permettre le dimensionnement d'un réacteur, un systeme d'équations stœchiométriques a été déterminé. Ce système rend compte de façon très satisfaisante de la conversion de l'oléate de méthyle et de la formation des produits.
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5

Falahati, Hamid. "The Characterization of Bimodal Droplet Size Distributions in the Ultrafiltration of Highly Concentrated Emulsions Applied to the Production of Biodiesel." Thesis, University of Ottawa (Canada), 2010. http://hdl.handle.net/10393/19585.

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Анотація:
A non-reactive model system comprising a highly concentrated and unstable oil-in-water emulsion was used to investigate the retention of oil by the membrane in producing biodiesel with a membrane reactor. Critical flux was identified using the relationship between the permeate flux and transmembrane pressure along with the separation efficiency of the membrane. It was shown that separation efficiencies above 99.5% could be obtained at all operating conditions up to the critical flux. It was observed that the concentration of oil in all collected permeate samples using the oil-water system was below 0.2 wt% when operating at a flux below the critical flux. Studies to date have been limited to the characterization of low concentrated emulsions below 15 vol.%. The average oil droplet size in highly concentrated emulsions was measured as 3200 nm employing direct light scattering (DLS) measurement methods. It was observed that the estimated cake layer thickness of 20 to 80 mm was larger than external diameter of the membrane tube i.e. 6 mm based on a large particle size. Settling of the concentrated emulsion permitted the detection of a smaller particle size distribution (30-100 nm) within the larger particles averaging 3200 nm. It was identified that DLS methods could not efficiently give the droplet size distribution of the oil in the emulsion since large particles interfered with the detection of smaller particles. The content of the smaller particles represented 1% of the total weight of oil at 30°C and 5% at 70°C. This was too low to be detected using DLS measurements but was sufficient to affect ultrafiltration. In order to study the critical flux in the presence of transesterification reaction and the effect of cross flow velocity on separation, various oils were transesterified in another membrane reactor providing higher cross flow velocity. higher cross flow velocity provides better separation by reducing materials deposition on the surface of the membrane due to higher shearing. The oils tested were canola, corn, sunflower and unrefined soy oils (Free Fatty Acids (FFA< 1%)), and waste cooking oil (FFA= 9%). The quality of all biodiesel samples was studied in terms of glycerine, mono-glyceride, di-glyceride and tri-glyceride concentrations. The composition of all biodiesel samples were in the range required by ASTM D6751 and EN 14214 standards. A critical flux based on operating pressure in the reactor was reached for waste cooking and pre-treated corn oils. It was identified that the reaction residence time in the reactor was an extremely important design parameter affecting the operating pressure in the reactor.
Natural Sciences and Engineering Research Council of Canada (NSERC)
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6

Cai, Xiaoshuang. "Production of carbonated vegetable oils from a kinetic modeling to a structure-reactivity approach Structure-reactivity : comparison between the carbonation of epoxidized vegetable oils and the corresponding epoxidized fatty acid methyl ester Aminolysis of cyclic-carbonate vegetable oils as a non-isocyanate route for the synthesis of polyurethane: a kinetic and thermal study Influence of ring‐opening reactions on the kinetics of cottonseed oil epoxidation Investigation of the physicochemical properties for vegetable oils and their epoxidized and carbonated derivatives Influence of gas-liquid mass transfer on kinetic modeling : carbonation of epoxidized vegetable oils." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMIR05.

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Анотація:
La valorisation de la biomasse et du dioxyde de carbone est à présent considérée comme une solution aux problèmes environnementaux du réchauffement climatique et l'épuisement des réserves de pétrole. Ainsi, les huiles végétales ont attiré l'attention croissante des milieux universitaires et industriels, comme une source de biomasse potentielle renouvelable qui peut être appliquée à la production de substitut fossile pour un développement durable, due à leurs caractères renouvelables, durables, biodégradables. De plus, cette biomasse est disponible avec une énorme quantité. Durant des décennies de recherches, les processus d'époxydation et de carbonatation sont deux méthodes d'application populaires pour la valorisation des huiles végétales. La conversion des huiles végétales en huiles époxydées est définie par une conversion d'un composé insaturé en un groupe époxyde. Jusqu'ici, l'oxydation de Prileschajew est la méthode de synthèse plus efficace pour la possible industrialisation du processus d'époxydation de huiles végétales, qui est une manière conventionnelle bien connue à utiliser comme processus de production commerciale. Ce type d'époxydation utilise l'acide percarboxylique comme transporteur d'oxygène qui est formé in situ dans la phase aqueuse, et ensuite époxyde les groupes insaturés des huiles végétales en groupes époxyde. Cependant, cette méthode présente une réaction secondaire d'ouverture du cycle du groupe époxyde au cours du processus. Donc, les conditions du procédé d'époxydation doivent être optimisées afin de minimiser les réactions d'ouverture de cycle. Des paramètres de réaction, y compris la concentration en catalyseur acide (acide sulfurique), réactifs (eau, groupe époxyde, peroxyde d'hydrogène, acide acétique) et la température de réaction, ont été discutés dans cette étude pour l'époxydation et réaction d'ouverture de cycle des huiles végétales. Au cours de la modélisation cinétique, les constantes cinétiques associées pour les réactions d'ouverture du cycle ont été estimées. En se basant sur ce modèle, les réactions d'ouverture du cycle époxyde par les acides acétique et peracétique sont plus rapides que celles de l'eau et du peroxyde d'hydrogène. Un réacteur en mode semi-fermé, avec addition du peroxyde d'hydrogène et de l'acide sulfurique, est la configuration la plus appropriée pour la production d'huiles végétales époxydées. Pour déterminer les conditions optimales et passer à échelle industrielle dans les procédés d'époxydation et de la carbonation, il faut connaître différentes propriétés physicochimiques telles que la viscosité, la densité, l'indice de réfraction, la capacité thermique spécifique et les évolutions de ces données avec la température. Cependant, aucune information sur ces propriétés est disponible dans la littérature. Pour cette étude, l'évolution de ces propriétés ont été déterminées pour trois huiles végétales et leurs dérivés époxydées et carbonates (l'huile de coton, l'huile de lin et l'huile de soja) avec la température et leur composition. La densité et l'indice de réfraction ont été trouvé linéairement dépendant de la température pour les huiles étudiées. La relation entre la contrainte de cisaillement et le taux de cisaillement dans l’étude de viscosité, indique que ces huiles sont des fluides newtoniens. Il a été démontré que la capacité thermique spécifique suit une équation polynomiale du second ordre avec la température. Sur la base de ces résultats, il a été démontré que certaines corrélations pourraient être utilisées pour prédire les évolutions de ces propriétés physicochimiques à différentes compositions et températures
Nowadays, biomass and carbon dioxide valorization are considered as a helpful solution to the environmental issues of global warming and the depletion of petroleum reserves. Thus, vegetable oils have attracted increasing attention of academic and industrial communities, as one of the potential renewable biomass that can be applied to the production of fossil substitute for sustainable development, owning to their advantages of renewable, sustainable, biodegradable, and universally available with huge feedstock. Among decades of researches, epoxidation and carbonation processes are two popular application methods for vegetable oil valorization. The conversion of vegetable oils into epoxidized ones is defined by a conversion of unsaturated compound into an epoxide group. So far, the potential application for the production of epoxidized oil in the industrial is the Prileschajew oxidation, which is a wellknown conventional way to be used as the commercial production process. This type of epoxidation uses percarboxylic acid as an oxygen carrier, which is formed in situ in the aqueous phase, and then epoxidize the unsaturated groups on the vegetable oils into epoxide groups. During the process, however, this method presents side reaction of ring-opening of the epoxide group. Therefore, the selective epoxidation process conditions need to be optimized in order to minimize the ring-opening reactions. In this study, process parameters including the concentration of acid catalyst (sulfuric acid), reactants (water, epoxide group, hydrogen peroxide, acetic acid) and the reaction temperature have been discussed for the epoxidation and ring opening of vegetable oils. During the kinetic modeling stage, the related kinetic constants for the ring opening reactions were estimated. Based on this model, the ring opening by acetic and peracetic acids was found to be faster than by water and hydrogen peroxide. A semibatch reactor, where hydrogen peroxide and sulfuric acid were added, was found to be the most suitable configuration. To determine the optimum operating conditions and scale up the epoxidation or carbonation processes, it requires the database of different physicochemical properties, i.e. viscosity, density, refractive index, or specific heat capacity and the evolutions of these properties with the temperature. However, this information is absent in the literature. For this study, the evolution of these properties with temperature and compositions (double bond, epoxide and carbonated groups concentration) was determined for three vegetable oils and their corresponding epoxidized and carbonated forms (cottonseed oil, linseed oil and soybean oil). Density and refractive indices of these oils were found to vary linearly with temperature. Based on the measurement of changes in viscous stresses with shear rates, these oils were found to be Newtonian fluids. It was demonstrated that specific heat capacity follows a polynomial equation of second order with temperature. Based on these results, it was demonstrated that some correlations could be used to predict the evolutions of these physicochemical properties at different composition and temperature based on the knowledge of the property of the pure compounds
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7

BUDHRAJA, NEERAJ. "OPTIMIZATION OF SOLAR ASSISTED BIODIESEL PRODUCTION FROM LINSEED OIL." Thesis, 2018. http://dspace.dtu.ac.in:8080/jspui/handle/repository/16309.

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Анотація:
The present explored crude oil reservoirs are depleting at a much faster rate than estimated at the end of 20th century. The higher energy demand for transportation, industrialization and luxurious life are the main consequences behind this fast rate depletion. To fulfill the everlasting demand of energy, we need to look for some alternative source of energy. Biodiesel being renewable and less polluting fuel can replace the conventional diesel fuel. But the higher energy and cost of biodiesel production is not allowing the industries to look biodiesel as a conventional diesel alternative. Thus, solar energy is implemented as heating source for transesterification process to reduce the cost of biodiesel production from conventional methods. This study focuses on optimizing the yield parameters based on the Taguchi’s approach, a powerful tool to maximize biodiesel yield. A full factorial design of 27 experiments, the signal-to-noise (S/N) ratio and analysis of variance (ANOVA) are employed to investigate the influence of yield parameters at different levels. The main objective of the study is to determine the effects of molar ratio, reaction time and catalyst concentration on the production of biodiesel from linseed oil. Different yield parameters have different influence on the production of biodiesel. The different levels for yield parameters recommended were 6:1, 7.5:1 and 9:1 for molar ratio; 90 min., 105 min. and 120 min. for reaction time; and 0.5 wt%, 0.75 wt% and 1.0 wt% for catalyst (KOH) concentration, respectively. The samples are processed under different level of parameters and percentage yield for each sample is measured. The result showed that the higher the molar ratio better the yield. The optimum yield parameters were 9:1 molar ratio, 105 min. reaction time and 0.5 wt% catalyst concentrations, which produced optimum yield of 82.48%. While the maximum yield of 82.82% is attained for molar ratio 9:1, reaction time 120 min. and catalyst concentration 0.75 wt%. According to the ANOVA analysis, molar ratio is the dominating factor with 63.01% contribution.
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8

Liu, Lung-Te, and 劉龍德. "The Study on Applying Blended Fuel of Distilled Waste Fried Oil Methyl Ester(DWOME) and Waste Fried Oil Methyl Ester(WOME) in a DI Diesel Engine." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/er3sky.

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碩士
國立臺北科技大學
車輛工程系所
96
Edible fried oil, generally named waste fried oil, has been paid a very high attention for the source of biodiesel material in recent years. Due to it not only has the fat of animal and vegetable but also includes the characteristics of high iodine value, acid valence, and the amount of glycerin etc. Moreover, engine life time is affected by these characteristics and its impurities which make the parts of diesel engine and fuel system filth heaped, blocked and corroded easily. So increasing cost on distilled waste fried oil methyl ester can be ameliorated problems. The blended fuels of distilled waste fried oil methyl ester(DWOME) and the waste fried oil methyl ester(WOME) are respectively used in this study. After engine performance experiment, the experimental results demonstrated that BSFC, the concentration of each exhaust gas emissions and EGT for DWOME is worse than WOME, but in order to prolong diesel engine life time, using distilled waste fried oil methyl ester is better choice.
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9

Chin, Wei-Hao, and 金偉豪. "The Study on Using Palm Oil Methyl Ester (POME) in a DI Diesel Engine." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/p5fe9d.

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Анотація:
碩士
國立臺北科技大學
車輛工程系所
94
The production of palm oil is more than other vegetable oil, and cost of it is lower. Each hectare land can get it of 3.36 tons every year. Malaysia is the largest country that producing and exporting palm oil in the world at the present. We can consider that importing palm oil from Malaysia to be a source of bio-diesel. Because of the bad fluidness of palm oil, it can not be used on diesel engine directly. We can transfer it and methanol to the fuel of palm oil methyl ester (POME) by transesterification as an alternative fuel of diesel engine. In order to know the engine performance, fuel consumption, exhaust emission, exhaust gas temperature and combustion characteristics. We make study to compare POME with Premium diesel (PD) under the DI diesel engine of one cylinder. According to the results of the study, everything of POME included the concentrations of Smoke and HC are lower than PD, but the fuel consumption and NOX concentration are higher.
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10

Chang, Chih-Yu, and 張之瑜. "The Study on Using Rapeseed Oil Methyl Ester(ROME)in a DI Diesel Engine." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/mxh9jr.

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Анотація:
碩士
國立臺北科技大學
機電整合研究所
94
At 1997, the Kyoto Protocol on International Convention that requested the industrialization and developed country formally to follow the criterions at 1990 for the amount of 5% decreased on the global atmospheric concentrations of CO2 in 2008 to 2012. At this point of view, every government of European Union has begun to approve of using biomass energy to be alternative fuels for diesel/gasoline engine. In this study, the rapeseed oil and rapeseed oil methyl ester which is adopted as investigating the performance of diesel engine, BSFC, exhaust gas emissions and the combustion characteristics, are used popularly in the country of European Union. Experimental results demonstrated that using ROME which is based on no influence of engine performance has higher BSFC and the concentration of NOX than PD 14.52% and 26.06%, respectively. But the concentrations of Smoke and HC are obviously decreased 50.40% and 45.98%, respectively. Furthermore, the blending fuel (RO50NF50) which is blended by the rapeseed oil with naphtha is slightly worse of engine performance and higher BSFC 8.71% than PD. But each of the exhaust gas emissions is well improved, especially for HC decreasing 78.58%, and the concentrations of Smoke and NOX are decreased 45.79% and 7.93%, respectively.
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Книги з теми "LINSEED OIL METHYL ESTER"

1

Fat and oil derivatives - Fatty Acid Methyl Esters (FAME): Determination of ester and linolenic acid methyl ester contents. BSI, 2003.

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2

Experimental Investigation of Pungamia Pinnata Oil and Canola Oil Methyl Ester as Biodiesel on CI Engine. Karur, India: ASDF International, 2017.

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Частини книг з теми "LINSEED OIL METHYL ESTER"

1

Kumar, Vikas, Ramesh Kumar Singh, and Deepak Kumar Mandal. "Impact of Palm Oil Methyl Ester Drops on a Surface." In Advances in Mechanical Engineering, 13–19. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0124-1_2.

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2

Sharmin, Eram, Manawwer Alam, Deewan Akram, and Fahmina Zafar. "Mn(II) and Zn(II) Containing Linseed Oil-Based Poly (Ester Urethane) as Protective Coatings." In Chemistry and Industrial Techniques for Chemical Engineers, 67–77. Series statement: Innovations in physical chemistry: monographic series: Apple Academic Press, 2020. http://dx.doi.org/10.1201/9780429286674-5.

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3

Kumar, Vakacharla B., Arpit Srivastav, Prathit R. Chatterjee, Utsav Kundu, Netra Damle, Patnala Dheeraj, Utkarsh Jha, et al. "Emission Analysis of Diesel Engine Fuelled with Jatropha Oil Methyl Ester Blends." In Advances in Mechanical and Industrial Engineering, 236–42. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003216742-36.

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4

Karwade, Amit, Girish Bhiogade, J. G. Suryawanshi, and A. V. Bhujade. "Oil Extraction, Biodiesel Production and CI Engine Investigation Using Madhuca indica Methyl Ester." In Water Science and Technology Library, 207–18. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5798-4_20.

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5

Sulaiman, Sarina. "Identification of Fatty Acid Methyl Ester in Palm Oil Using Gas Chromatography-Mass Spectrometer." In Multifaceted Protocol in Biotechnology, 63–74. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2257-0_6.

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6

Aji, Aminah Qayyimah Mohd, and Mariyamni Awang. "Palm Fatty Acid Methyl Ester in Reducing Interfacial Tension in CO2–Crude Oil Systems." In ICIPEG 2016, 217–27. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3650-7_18.

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7

Yaliwal, V. S., P. A. Harari, and N. R. Banapurmath. "Experimental Investigation on RCCI Engine Operated with Dairy Scum Oil Methyl Ester and Producer Gas." In Smart Technologies for Energy, Environment and Sustainable Development, Vol 1, 695–706. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-6875-3_56.

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8

Baskar, S., S. Arumugam, G. Sriram, and Venkata Sai Satyanarayana Sastry Sistla. "Tribological Investigation of Waste Plastic Oil-Based Methyl Ester Blended Synthetic Lubricant Using Four-Ball Tribometer." In Springer Proceedings in Materials, 587–93. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6267-9_66.

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9

Selim, Mohamed Y. E., and A. M. M. Hussien. "Reducing the Combustion Noise and Operational Roughness of Diesel Engine by Using Palm Oil Methyl Ester Biofuel." In ICREGA’14 - Renewable Energy: Generation and Applications, 675–82. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05708-8_55.

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10

Steinbüchel, A., I. Voß, and V. Gorenflo. "Interesting Carbon Sources for Biotechnological Production of Biodegradable Polyesters: The Use of Rape Seed Oil Methyl Ester (Biodiesel)." In ACS Symposium Series, 14–24. Washington, DC: American Chemical Society, 2001. http://dx.doi.org/10.1021/bk-2000-0764.ch002.

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Тези доповідей конференцій з теми "LINSEED OIL METHYL ESTER"

1

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

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Анотація:
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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2

Agarwal, Avinash Kumar, Jayashree Bijwe, and L. M. Das. "Wear Assessment in a Biodiesel Fuelled Compression Ignition Engine." In 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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Анотація:
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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3

Hohl, Günter H. "Rape Oil Methyl Ester (RME) and Used Cooking Oil Methyl Ester (UOME) as Alternative Fuels." In Alternative Fuels Conference & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1995. http://dx.doi.org/10.4271/952755.

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4

Kinoshita, E., K. Hamasaki, and C. Jaqin. "Diesel Combustion of Palm Oil Methyl Ester." In 2003 JSAE/SAE International Spring Fuels and Lubricants Meeting. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2003. http://dx.doi.org/10.4271/2003-01-1929.

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5

Sani, W. B. Wan, K. B. Samo, T. H. Da, and M. F. R. Zulkifli. "The study of palm oil methyl ester and its corrosiveness." In THE 4TH INTERNATIONAL MEETING OF ADVANCES IN THERMOFLUIDS (IMAT 2011). AIP, 2012. http://dx.doi.org/10.1063/1.4704331.

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6

Hamasaki, K., H. Tajima, K. Takasaki, K. Satohira, M. Enomoto, and H. Egawa. "Utilization of Waste Vegetable Oil Methyl Ester for Diesel Fuel." In International Spring Fuels & Lubricants Meeting. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2001. http://dx.doi.org/10.4271/2001-01-2021.

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7

PANDEY, LOKESH. "Experimental Investigation on Exhaust Emission of Direct Injection Diesel Engine Fuelled with Karanja Methyl Ester Neem Methyl Ester and Diesel oil." In Sixth International Conference on Advances in Civil Structural and Mechanical Engineering CSM 2018. Institute of Research Engineers and Doctors, 2018. http://dx.doi.org/10.15224/978-1-63248-150-4-49.

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8

Otaka, Takeshi, Kazuyo Fushimi, Eiji Kinoshita, and Yasufumi Yoshimoto. "Diesel Combustion Characteristics of Palm Oil Methyl Ester with 1-Butanol." In SAE/JSAE 2014 Small Engine Technology Conference & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2014. http://dx.doi.org/10.4271/2014-32-0085.

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9

Chen, BingHao, QinPan Qiu, Xiao Peng, JingWen Zhang, and Chao Tang. "Molecular Dynamics Study on Kinematic Viscosity of Peanut Oil Methyl Ester." In 2021 International Conference on Electrical Materials and Power Equipment (ICEMPE). IEEE, 2021. http://dx.doi.org/10.1109/icempe51623.2021.9509072.

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10

Suryawanshi, J. G., and N. V. Deshpande. "Experimental Investigations on a Jatropha Oil Methyl Ester Fuelled Diesel Engine." In ASME 2005 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/ices2005-1040.

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Biodiesel is a non-toxic, biodegradable and renewable fuel with the potential to reduce engine exhaust emissions. The methyl ester of jatropha oil, known as biodiesel, is receiving increasing attention as an alternative fuel for diesel engines. The biodiesel is obtained through transesterification process. Various properties of the biodiesel thus developed are evaluated and compared in relation to that of conventional diesel oil. In the present investigation neat jatropha oil methyl ester (JME) as well as the blends of varying proportions of jatropha oil methyl ester (JME) and diesel were used to run a CI engine. A four stroke diesel engine having compression ratio of 17.5: 1 and developing 5.2 kW at 1500 rpm was used. Experiments were initially carried out on the engine at all loads using diesel to provide baseline data. Significant improvements in engine performance and emission characteristics were observed for JME fuel. The addition of jatropha methyl ester (JME) to diesel fuel has significantly reduced HC, CO, CO2 and smoke emissions but it increases the NOx emission slightly. The maximum reduction in smoke emission was observed by 35% in case of neat biodiesel operation as compared to diesel. The unburned hydrocarbon emission was drastically reduced by 53% for neat biodiesel operation.
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Звіти організацій з теми "LINSEED OIL METHYL ESTER"

1

Kinoshita, Eiji, Kazunori Hamasaki, Ishikawa Takashi, and Thet Myo. Combustion Characteristics of Emulsified Palm Oil Methyl Ester for Diesel Fuel. Warrendale, PA: SAE International, October 2005. http://dx.doi.org/10.4271/2005-32-0041.

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