Palm Oil Use as Additive to Fuel for Tractor Diesels

Бижаев, А. В.; Симеон, Адедожа Адегбенро

doi:10.22314/2073-7599-2017-6-41-46

Cited by 4 publications

(4 citation statements)

References 1 publication

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“…For the functions f(gm), in turn, polynomials approximating them were obtained, depending on the fraction of PO gm in the mixed fuel. The resulting approximations of the dependence of the coefficients of polynomials (10) on the value of gm are shown in Figure 4, which also shows approximating expressions of the 2nd degree.…”

Section: Resultsmentioning

confidence: 95%

“…An analysis of the obtained approximations shows that the coefficients of polynomial (10) depend on the composition of the mixed fuel gm, i.e. :…”

Section: Resultsmentioning

confidence: 99%

“…where f0(gm), f1(gm), f2(gm) -the dependences, respectively, of the coefficients a0, a1 and a2 of the approximating polynomial (10) on the composition of the fuel mixture gm.…”

Section: Resultsmentioning

confidence: 99%

“…The same problems are typical for palm oil as a feedstock for biodiesel. To improve the quality of mixture formation when working on biofuels, it is proposed to use various design changes in the injection system of a diesel engine [9,10].…”

Section: Introductionmentioning

confidence: 99%

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Compressibility of blends of diesel fuel with palm oil

et al. 2023

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The article presents the results of experimental studies to determine the compressibility of mixtures of diesel fuel with palm oil. To determine the compressibility of fuel mixtures in this work, we used a method based on measuring the speed of sound in the fuel in the injection pipeline. A description of a laboratory setup for measuring the speed of sound propagation in a mixed fuel is given, and the experimental procedure is outlined. The results obtained show that with an increase in the initial compression pressures and the density of fuel mixtures, which depends on the volumetric content of palm oil in them, the speed of sound increases, and the compressibility decreases. Formulas are presented that approximate the experimentally found dependences of compressibility on pressure and the proportion of palm oil in the mixed fuel. The results of the research can be used in modeling the fuel supply process of diesel engines operating on mixtures of diesel fuel and palm oil.

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Section: Resultsmentioning

confidence: 95%

“…An analysis of the obtained approximations shows that the coefficients of polynomial (10) depend on the composition of the mixed fuel gm, i.e. :…”

Section: Resultsmentioning

confidence: 99%

“…where f0(gm), f1(gm), f2(gm) -the dependences, respectively, of the coefficients a0, a1 and a2 of the approximating polynomial (10) on the composition of the fuel mixture gm.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Compressibility of blends of diesel fuel with palm oil

et al. 2023

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Vegetable oils as effective additives and replacements of diesel fuel in agriculture machinery engines

Devianin

Bijaev

Chumakov

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The article presents the results of experimental studies of possible partial replacement of traditional diesel fuel by biofuel. The term biofuel refers to a mixture of diesel fuel with vegetable oils such as palm or peanut oils. The optimal supply of vegetable oils is determining under conditions of preservation or deterioration of diesel engine performance in the range of 5 … 8%. The experiments suppose a diesel engine operation without any interfering within design or regulation of the diesel engine and its fuel equipment. Hydrogen peroxide or kerosene is used to improve the physicochemical properties of vegetable oils. It has been found that under these constraints, the optimal supply of palm oil is 20%. In case of peanut oil, experimentally found that its volume part in biofuel can be increased up to 40%. To provide an equal density and viscosity of the biofuel and the base diesel fuel 30% of diesel fuel were replaced by kerosene. In the range of low and medium engine loads, an emission of main toxic components of nitrogen oxides NOx, emission of solid carbon particles with exhaust gas C, carbon oxides changes insignificantly, and even decreases. The concentration of unburned hydrocarbons is significantly reduced. At engine loads above 50% for peanut oil and 75% for palm oil biofuels, presumably due to worse mixture formation, there is a sharp decrease in nitrogen oxide emissions and an increase in carbon monoxide concentrations.

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Oxide Emissions Reduction from Combustion Control in a Diesel Engine

Chumakov

Devyanin

2021

S-h. maš. tehnol.

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The authors showed that the European Union norms for the toxicity of exhaust gases (Euro 1 – Euro 5) contributed to the reduction of main harmful components emissions by several times. In foreign countries, Stage and Tier regulations applied to tractor equipment, which also limited the content of toxic components at the legislative level.(Research purpose) To reduce the content of nitrogen oxides in exhaust gases by more efficient regulation of the fuel charge distribution in the gas-diesel engine cylinder, changes in the concentration of diesel and gas fuel in certain zones, as well as the use of exhaust gas recirculation.(Materials and methods) The authors analyzed the results of modeling the formation of nitrogen oxides by controlling the workflow in the gas-diesel modification of the diesel engine. In the calculations, the geometric parameters of the D-120 engine, operating at 2000 revolutions per minute, with a filling of 0.6-0.9 volume, were used. The average excess air ratio for the charge was 1.2-3.0, and the excess air ratios for the gas-air mixtures did not exceed 1.2-2.5.(Results and discussion) Using the computational model, the authors estimated the parameters at different pressures at the engine inlet within 0.05-0.09 megapascals, as well as with an increase in the residual gas coefficient in the range of 5-15 percent with a decrease in the concentration of nitrogen oxides from 2500 to 1100 parts per million. Experiments showed that when the power changed from 100 to 20 percent, the nitrogen oxides concentration decreased from 1940 to 800 parts per million.(Conclusions) The authors confirmed the adequacy of the calculation model. They determined that a 40-50 percent reduction in the nitrogen oxide concentration in exhaust gases was achieved with various layering schemes in the combustion chamber. They found that the standards for carbon monoxide, hydrocarbons and nitrogen oxides would require mixed engine regulation. It was proved that recirculation of 15 percent of exhaust gases could reduce nitrogen oxide emissions by another 50 percent.

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Palm Oil Use as Additive to Fuel for Tractor Diesels

Cited by 4 publications

References 1 publication

Compressibility of blends of diesel fuel with palm oil

Compressibility of blends of diesel fuel with palm oil

Vegetable oils as effective additives and replacements of diesel fuel in agriculture machinery engines

Oxide Emissions Reduction from Combustion Control in a Diesel Engine

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