Experimental Investigations on Performance, Combustion, and Emission Characteristics of Niger (Guizotia abyssinica) Seed Oil Methyl Ester Blends with Diesel at Different Compression Ratios

Sagari, Jaikumar; Bhatti, S. K.; Srinivas, V.

doi:10.1007/s13369-018-3538-y

Cited by 41 publications

(39 citation statements)

References 28 publications

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“…NSOME has been prepared by transesterification technique [12] and three different blends were prepared by mixing with diesel. The test fuels are designated as diesel, B10, B20, and B40 by blending NSOME (B100) with diesel at different proportions namely 0%, 10%, 20%, and 40 % respectively by volume [12]. The physic-chemical properties of NSOME and their blends were tested and presented in the Table1.…”

Section: Methodsmentioning

confidence: 99%

“…The corresponding NOx emission values were about 698 ppm, 855 ppm, 856 ppm, and 826 ppm correspondingly at maximum load. The possible reason intended for this surge in NOx was on account more oxygen availability and greater temperature of exhaust gas [12,22]. Further, the NOx has observed a rising trend towards increasing load irrespective of all the test fuels.…”

Section: Nitrogen Oxides (Nox)mentioning

confidence: 98%

“…Further, a notable fall in CO levels was noticed with NSOME blends. This lessening was in consequence of more amount of oxygen there in the biodiesel than conventional diesel which leads to superior combustion [12,22]. The CO emissions were 115%, 0.066%, 0.053%, and 0.063 % respectively for diesel, B10, B20, and B40 at full load.…”

Section: Emission Characteristicsmentioning

confidence: 99%

“…The identical trend was continued for all the experimental test fuels. It was noticed that the NSOME blends have far lower UHC emissions compared to diesel on account of superior combustion efficiency which was owing to greater cetane number and more oxygen existence in the biodiesel [12,23]. Further, the B20 has given least UHC emissions at all the load conditions as compared to other fuels in scrutiny.…”

Section: Unburnt Hydrocarbons (Uhc)mentioning

confidence: 99%

“…Numerous authors have performed different researches on emission characteristics and very few investigations were gone through in the field of engine vibrations and noise. Jaikumar et al [12] experimented with variable compression ratio (VCR) diesel engine using Niger seed oil biodiesel blends. Form their results, the combustion parameters were improved and the emissions of CO, UHC, and smoke opacity were decreased while the NOx was noticed higher than conventional diesel.…”

Section: Introductionmentioning

confidence: 99%

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Emission and vibration characteristics of Niger seed oil biodiesel fueled diesel engine

Sagari¹,

Bhatti²,

Srinivas³

2019

JMES

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The present investigation dwells the experimental investigation for the assessment of emission, vibration, and noise parameters of single-cylinder, DI diesel engine functioning through the blends of conventional diesel and Niger seed oil methyl ester (NSOME) at different engine operating loads namely 25%, 50%, 75%, and 100% at a constant speed. The carbon monoxide (CO), unburnt hydrocarbons (UHC), and smoke opacity emissions have come down significantly for all the blends of NSOME namely B10, B20, and B40 while the NOx increased marginally. Besides, the vibration and noise extremity of the engine was lowered while operating with biodiesel blends as compared to conventional diesel. B20 has specified a significant reduction in emission, vibration, and noise too at all the loads range from minimum to maximum. At maximum load condition the CO, UHC, smoke opacity, root mean square (RMS) velocity, and RMS noise of B20 have reduced by 93.9%, 37.87%, 5.54%, 45.78%, and 26.15% respectively even as the NOx was increased by 12.76% compared to standard.

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Section: Methodsmentioning

confidence: 99%

Section: Nitrogen Oxides (Nox)mentioning

confidence: 98%

Section: Emission Characteristicsmentioning

confidence: 99%

Section: Unburnt Hydrocarbons (Uhc)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Emission and vibration characteristics of Niger seed oil biodiesel fueled diesel engine

Sagari¹,

Bhatti²,

Srinivas³

2019

JMES

Self Cite

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Combustion and vibration characteristics of variable compression ratio direct injection diesel engine fuelled with diesel‐biodiesel and alcohol blends

Sagari

Bhatti

Srinivas

et al. 2020

Engineering Reports

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The objective of the present investigation is to explore the influence of ternary (diesel-biodiesel-alcohol) fuel blends on the combustion and vibration parameters of a variable compression ratio compression ignition engine. Kusum seed oil biodiesel and isobutyl alcohol were blended with conventional diesel to make a ternary fuel. The blend of biodiesel-diesel (B20) was made in proportion of 20% and 80% by volume, respectively. Furthermore, isobutyl alcohol was added at diverse proportions (ie, 0.25%, 0.5%, 0.75%, and 1%). The investigation was carried at different compression ratios (CRs), namely, 16.5, 17.5, and 18.5. The study shows that, upon the addition of isobutyl alcohol, the combustion characteristics (ie, cylinder pressure [CP] and net heat release rate [NHRR]) are significantly enhanced, whereas the mechanical vibration level maintains stable. The CP and NHRR of B20+ 1% isobutyl alcohol are greatly improved for corresponding values of 4.55% and 8.39%, respectively, except for the conventional diesel at CR 18.5. Furthermore, the root mean square velocity (vibration) decreases when increasing the quantity of isobutyl alcohol and attained a minimum with B20+ 1% isobutyl alcohol. The experimental results show that the isobutyl alcohol up to 1% with diesel-biodiesel blends can be used in the CI engine with no further adjustments. K E Y W O R D S combustion, compression ratio, Kusum seed oil biodiesel, RMS velocity, transesterification Abbreviations: , crank angle (•); l, length of connecting rod (m); ΔCA, uncertainty in crank angle; ΔW, uncertainty in load; ΔP, uncertainty in pressure; ΔN, uncertainty in speed; ΔT, uncertainty in temperature; ΔRMSvelocity, uncertainty in vibration; ADC, analog to digital converter; B20, KSOME 20% in diesel; CHRR, net heat release rate (J/ o CA); CI, compression ignition; CP, cylinder pressure (bar); CR/CRs, compression ratio/compression ratios; D, cylinder bore (m); FFT, fast Fourier transforms; IP, injection pressure; KSOME, Kusum seed oil methyl ester; LDV, laser Doppler vibrometer; m/sec, meter/second; n, number of points within a time period; NaOCH 3 , sodium methoxide; NHRR, cumulative heat release rate (J/ o CA); PDV, Polytec Doppler vibrometer; r, crank radius (m); RMS, root mean square; V, instantaneous cylinder volume (m3); V(t j), velocity with respect to time; Vc, clearance volume (m3); VCR, variable compression ratio; V RMS , RMS velocity. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Effect of diesel‐biodiesel‐alcohol blends on combustion, performance, and emission characteristics of a single cylinder compression ignition engine

Reang

Dey

Deb

et al. 2021

Env Prog and Sustain Energy

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Synthesis of biodiesel from raw based waste materials is much more influential for economic support of the nation, as many researchers have concluded that the use of fossil fuels is no longer sufficient in the coming decade, so one should look into the alternate source of energy in order to sustain the energy for our daily needs. Neem methyl ester produced from waste neem seed, which is cheap, and available in the surroundings has an opportunity for nonconventional sustainable energy and whereas, rice wine alcohol obtained from waste cooked rice by fermentation process can be checked for diesel engine operation, here study investigates the influence of these synthetic fuel diesel‐biodiesel‐alcohol blend in combustion, performance and emission characteristics. Biodiesel and alcohol are introduced to enhance oxygenation properties of the test fuels, and also adding 10% rice wine alcohol in the blends changed the physiochemical properties of the test fuels like lowered the flash point, fire point, viscosity and calorific value, where D80B10RW10 increased the cylinder pressure by 1.23% and lowered the emission like smoke opacity and unburnt hydrocarbons by 23.95%, 21.62% as compared to diesel. The overall test results conclude that a low blend of biodiesel with 10% rice wine alcohol has an opportunity to be implemented in the existing engine for the coming decade.

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Experimental Investigations on Performance, Combustion, and Emission Characteristics of Niger (Guizotia abyssinica) Seed Oil Methyl Ester Blends with Diesel at Different Compression Ratios

Cited by 41 publications

References 28 publications

Emission and vibration characteristics of Niger seed oil biodiesel fueled diesel engine

Emission and vibration characteristics of Niger seed oil biodiesel fueled diesel engine

Combustion and vibration characteristics of variable compression ratio direct injection diesel engine fuelled with diesel‐biodiesel and alcohol blends

Effect of diesel‐biodiesel‐alcohol blends on combustion, performance, and emission characteristics of a single cylinder compression ignition engine

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