Effect of Bioethanol-Diesel Blends on the Vibrations of Diesel Engine

Extensive consumption of fossil fuel has contributed to the worldwide decline of its reserves and detrimental effect on the environment. Therefore, it is essential to explore alternative option of fuel for diesel engine. The main objective of this research article is to optimize vibrations in a single-cylinder variable compression ratio diesel engine driven by Jatropha biodiesel blend. The heterogeneous catalyst (calcium oxide) is used to manufacture of biodiesel from Jatropha curcas oil by a process of transesterification. The optimization technique (Response Surface Methodology) has been employed to optimize root mean square acceleration of vibration by taking load, compression ratio (CR), and fuel injection pressure (FIP) as engine input parameters. Experiments were designed according to central composite design. The amplitude of the frequency domain signals is determined using Fast Fourier Transform and the influence of input parameters has been investigated in the frequency domain analysis of the vibration signatures. The adequacy and significance of the models have been checked by p-value and F value tests. Regression coefficients Adj. R2, R2, Pred. R2 were also found in acceptable range. The experimental outcome reveals that biodiesel yield of 81.6% was obtained at methanol-to-oil molar ratio of 12:1, reaction temperature of 65°C, reaction time of 3 h, and catalyst concentration of 5 wt%. Simultaneously, the model obtained a series of solutions based on the desirability criteria and proposed optimum setting of engine input parameters at a load of 2.59 kg, 17.94 CR, and 268.76 bar FIP for B30 blend. B30 blend generated root mean square acceleration of 4.46 m/s2 at above optimized conditions. A validation trial was conducted and the percentage of error for root mean square acceleration was found to be 2.3356% and 1.3039%, respectively, for B0 and B30 blend.

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“…All the vibrations pulses escape in to air from the structure surface, which considered as total noise and vibrations of the engine. 27…”

Section: Resultsmentioning

confidence: 99%

Analysis of vibrations in a diesel engine produced by Jatropha biodiesel using heterogeneous catalyst

Singh

Choudhary

Panchal³

et al. 2022

Energy & Environment

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A comparative review on evaluation of performance, combustion, and emission characteristics of biodiesel blends enriched with hydrogen, additives and their combined effect

Deepalika,

Kumar,

Choudhary

2023

Thermal Science and Engineering Progress

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Assessment of Combustion and Acoustic Characteristics of Scenedesmus dimorphus Blended With Hydrogen Fuel on Internal Combustion Engine

Shen

Alahmadi

et al. 2022

Journal of Energy Resources Technology

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Biodiesel, which may be produced from crops, animal fat, as well as waste products from both industrial and residential sector, is one of the alternative fuels that is utilized extensively. These biodiesels may either be used on their own or combined with regular diesel.. Because biodiesels are becoming increasingly popular as a substitute for fossil fuels, the amount of attention paid to studying them has been growing steadily over the past few years. However, the results on the features of the noise and vibration are still missing, and much more emphasis has to be placed on the study conducted in that particular field. In this study, the combustion, noise, and vibration properties of Scenedesmus Dimorphus microalgae biodiesel were investigated both with and without the provision of hydrogen. At the rate of 5 litres per minute, the supply of hydrogen was made available. Both B10 (10 % of Scenedesmus Dimorphus microalgae biodiesel and 90 % pure diesel) and B20 (20 % of Scenedesmus Dimorphus microalgae biodiesel and 80 % pure diesel) were employed as the biodiesel compositions. In addition, the source of hydrogen was made available for the diesel in its purest form as well as the two biodiesel mixes that remained. The fuels that were obtained consisted of neat microalgae blends containing 0% microalgae B0H5, 10% microalgae B10H5, and 20% microalgae containing B20H5. In this study, the performance of pure diesel was compared to the findings obtained from hydrogen-enriched fuel blends, simple biodiesel blends, and a combination of the two. Each and every experimental test was carried out using a diesel engine with a single cylinder, water cooling, and four strokes. The tests were carried out with the load varying 25% in between from 0% to 100%. Based on the findings, it was discovered that increasing the proportion of biodiesel fuel and adding hydrogen to the engine both contributed to a reduction in the amount of vibration and noise that was generated by the vehicle. The combustion qualities were also improved by the mixing of hydrogen and biodiesel as hybrid fuel.

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Effect of Bioethanol-Diesel Blends on the Vibrations of Diesel Engine

Cited by 3 publications

References 17 publications

Analysis of vibrations in a diesel engine produced by Jatropha biodiesel using heterogeneous catalyst

Analysis of vibrations in a diesel engine produced by Jatropha biodiesel using heterogeneous catalyst

A comparative review on evaluation of performance, combustion, and emission characteristics of biodiesel blends enriched with hydrogen, additives and their combined effect

Assessment of Combustion and Acoustic Characteristics of Scenedesmus dimorphus Blended With Hydrogen Fuel on Internal Combustion Engine

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