Combustion, vibration, and noise characteristics of direct injection VCR diesel engine fuelled with <i>Mesua ferrea</i> oil methyl ester blends

Sagari, Jaikumar; Bhatti, S. K.; Srinivas, V.; Satyameher, R.; Padal, S. B.; Chandravathi, D.

doi:10.1080/01430750.2020.1713888

Cited by 26 publications

(16 citation statements)

References 19 publications

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“…It could be eminent that the RMS velocity (vibration) of B20 and isobutyl alcohol added diesel‐biodiesel blend was lower than the conventional diesel due to their better combustion efficacy. Hence, the combustion superiority implies the reduction in vibration intensity 7,22,26 . Furthermore, at upper CRs, the vibration signature has developed more inferable from the quick change in the CP.…”

Section: Resultsmentioning

confidence: 99%

“…The uncertainty about measured quantities such as load, speed, CP, and the crank angle was calculated as follows 22

Uncertainty = \sqrt{({}, {(Δ W)}^{2} + {(Δ N)}^{2} + {(ΔP)}^{2} + {(Δ CA)}^{2} + {(Δ T)}^{2} + {(Δ {RMS}_{velocity})}^{2})} .

…”

Section: Materials and Methodologymentioning

confidence: 99%

“…Hence, the combustion superiority implies the reduction in vibration intensity. 7,22,26 Furthermore, at upper CRs, the vibration signature has developed more inferable from the quick change in the CP. In this way, there is an essential impact on combustion chamber geometry (specifically the piston) rapidly due to the large thrust produced by combustion gases and thus, more fluctuations in piston moment occur resulting in enhanced vibrations.…”

Section: Vibration Characteristicsmentioning

confidence: 99%

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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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Section: Resultsmentioning

confidence: 99%

“…The uncertainty about measured quantities such as load, speed, CP, and the crank angle was calculated as follows 22

Uncertainty = \sqrt{({}, {(Δ W)}^{2} + {(Δ N)}^{2} + {(ΔP)}^{2} + {(Δ CA)}^{2} + {(Δ T)}^{2} + {(Δ {RMS}_{velocity})}^{2})} .

…”

Section: Materials and Methodologymentioning

confidence: 99%

Section: Vibration Characteristicsmentioning

confidence: 99%

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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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“…Besides, a fall down in noise intensity was observed at rising FIP. The advanced atomization of fuel droplets causes enhanced combustion efficacy at higher FIP which result in less tendency to knock [16,22] (Fig. 6).…”

Section: Frequency Domain Noise Characteristicsmentioning

confidence: 99%

“…The presence of biodiesel in the regular diesel is responsible for delay in the ignition. Jaikumar et al [16] Fig. 2 Schematic diagram of test rig studied the influence of fuel injection pressure of biodiesel blends of Masua ferrea oil.…”

Section: Introductionmentioning

confidence: 99%

Effect of fuel injection pressure on the diesel engine fuelled with Moringa oleifera oil biodiesel blends: vibration and noise study

Sagari

Srinivas

Rajasekhar

et al. 2020

Int. J. Dynam. Control

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The purpose of the present study is to estimate the vibration and noise intensity of a single-cylinder direct injection diesel engine. The experiment was performed by varying the fuel injection pressures (FIP) such as 200 bar, 220 bar, and 240 bar respectively with four test fuel samples of Moringa oleifera oil biodiesel blends; BD0D100, BD10D90, BD20D80, and BD30D70. The intensity of vibration and noise has come down with the blends of Moringa oleifera biodiesel than regular diesel fuel (BD0D100). Besides, the increase in FIP looked at lower levels of vibration and noise disregarding fuel blends. Both the vibration and noise intensity was seen least with the BD20D80 fuel blend than leftover samples. The slightest RMS velocity and RMS noise were seen by 0.104 m/s and 39.71 dB correspondingly for BD20D80 than ordinary diesel at a FIP of 240 bar. Hence, the compression ignition engine can be operated with the BD20D80 fuel blend devoid of any amendment in the engine for the inferior vibration and noise. Keywords Biodiesel blends • Moringa oleifera • Noise • RMS velocity • Root mean square Abbreviations BD0D100 Clean biodiesel BD10D90 10% biodiesel in clean diesel BD20D80 20% biodiesel in clean diesel BD30D70 30% biodiesel in clean diesel CI Compression ignition ASTM American standards for testing materials ADC Analog to digital converter LDV Laser Doppler vibrometer RMS Root mean square CR Compression ratio FFT Fast Fourier transforms FIP Fuel injection pressure dB Decibel units KOH Potassium hydroxide B S. Jaikumar

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Biodiesel Production From Non‐Edible and Waste Lipid Sources

Fasanya

Osigbesan

Avbenake

2021

Biodiesel Technology and Applications

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Combustion, vibration, and noise characteristics of direct injection VCR diesel engine fuelled with Mesua ferrea oil methyl ester blends

Cited by 26 publications

References 19 publications

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

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

Effect of fuel injection pressure on the diesel engine fuelled with Moringa oleifera oil biodiesel blends: vibration and noise study

Biodiesel Production From Non‐Edible and Waste Lipid Sources

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