Influence of biodiesel and its blends on CI engine performance and emissions: a review

Seela, Chiranjeeva Rao; Sankar, B. Ravi; Kiran, D. Sai

doi:10.1080/17597269.2016.1215069

Cited by 20 publications

(4 citation statements)

References 64 publications

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“…Application of water emulsion can also lower NOx content. 199 Inclusion of nano-particle-based additives with biodiesel blend is also reported to limit NOx emissions. 280,281…”

Section: Nox Emissionmentioning

confidence: 99%

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Opportunities and challenges for the application of biodiesel as automotive fuel in the 21st century

Hassan

Rahman

et al. 2022

Biofuels Bioprod Bioref

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Depletion of fossil fuel and massive emissions of hazardous greenhouse gases are prompting many researchers to focus on greener renewable fuel such as biodiesel, which has the potential to replace petrodiesel partially. This review covers various aspects related to biodiesel feedstock and its effects on biodiesel characteristics, biodiesel production methods, blending techniques, biodiesel properties, combustion, engine performance, and emission analysis, the effects of different additives on biodiesel characteristics, and some challenges associated with biodiesel. Moreover, different relevant empirical correlations of biodiesel properties and combustion parameters are presented. Despite alkali catalysis being the most adopted transesterification process, lipase catalysis and heterogeneous catalysis are potential processes for future biodiesel production from low‐cost feedstock. Biodiesel has higher viscosity, density, flash point, cetane number, and pour point while having low heating value in comparison with petrodiesel. Most studies conducted on diesel engine led to a reduction in brake power, brake thermal efficiency, carbon monoxide, sulfur dioxide, particulate matter, and unburned hydrocarbons, and increased brake specific fuel consumption and oxides of nitrogen are associated with biodiesel compared to petrodiesel. In brief, biodiesel is comparable to petrodiesel. However, before there is a large‐scale application of biodiesel in the automotive sector it has to overcome some challenges such as its compatibility with engine components, its instability, its effect on engine wear, deposit formation, and clogging of fuel filters and injectors. Increased focus should also be given to second‐generation biodiesel over first‐generation biodiesel because second‐generation biodiesel can offset production costs, reduce deforestation, and solve the food versus fuel problem. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.

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“…Application of water emulsion can also lower NOx content. 199 Inclusion of nano-particle-based additives with biodiesel blend is also reported to limit NOx emissions. 280,281…”

Section: Nox Emissionmentioning

confidence: 99%

“…However, NOx emissions can be reduced by adopting an EGR system, retarding injection timing, and by the modification of engines. Application of water emulsion can also lower NOx content 199 . Inclusion of nano‐particle‐based additives with biodiesel blend is also reported to limit NOx emissions 280,281 …”

Section: Challenges and Concernsmentioning

confidence: 99%

Opportunities and challenges for the application of biodiesel as automotive fuel in the 21st century

Hassan

Rahman

et al. 2022

Biofuels Bioprod Bioref

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“…Alternative options considered in the study included pongamia, mahua, sunflower,neem oil, koroch and animal fats, alongside cottonseed, as well as soybean crude oil and rapeseed oil. Tallow methyl esters, palm, waste cooking oil, and kopak methyl ester were also taken into account [13,27,18]. Haşimoğlu et al [10] employed the low heat rejection (LHR) engine concept by transforming a turbocharged direct injection (DI) diesel engine into a low heat rejection engine.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigations on the performance and emissions of compression ignition engine fuelled with lower blends of neem-based biodiesel

DHANDE,

Navale

2024

The Archives of Automotive Engineering – Archiwum Motoryzacji

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Biodiesel has attracted a lot of attention as a possible replacement for traditional fuels due to the limited supply of fossil fuels and the growing concern about emissions of greenhouse gases. It is renewable and produces less hazardous emissions when burned. Enhancing biodiesel production is imperative to meet the escalating demand for eco-friendly fuels, serving as a remedy for the rising costs and dwindling accessibility of petroleum. This study aims in boosting neem biodiesel production specially in dry and unproductive soil regions and improving engine power using neem oil biodiesel, especially using lower blends. This study is in line with the initiatives that promote sustainable energy growth by gradually increase biodiesel blending from 15% to 30% in the near future. This research delves into the manufacturing of biodiesel from neem seeds and impact of its blends on the efficiency and emissions of compression ignition engines when combined with regular fuel. The biodiesel was produced using the transesterification method.Three distinct blends, B10, B15, and B20, were prepared by blending neem biodiesel with regular diesel. When testing engine performance, these mixtures were compared against pure diesel fuel. The specific fuel consumption and brake thermal efficiency of all blend combinations improved with increasing load. In comparison to pure diesel, there were also decreased percentages of hydrocarbons (HC), carbon monoxide (CO), and smoke opacity. There was an increase in nitrogen oxides with increasing load for all mixes as compared to pure diesel. The research results highlight neem biodiesel as a practical and efficient alternative to conventional diesel fuel due to its ability to enhance engine efficiency and lowering emissions.

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“…In India, the main sources of biodiesel can be non-edible oils such as Jatropha, Karanja and castor. Biodiesel from nonedible oils can be used as blend with diesel or in its pure form (Seela et al, 2017a(Seela et al, , 2017bAlptekin et al, 2015). It did not any significant engine problems.…”

Section: Introductionmentioning

confidence: 99%

Emulsified nano Al₂O₃ – Jatropha methyl ester blends: application in variable compression ratio engine

Seela¹,

Sankar²

2020

WJE

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Purpose The purpose of this paper is to assess the influence of blends of Jatropha methyl ester (JME) and its nano Al2O3 emulsion on variable compression ratio diesel engine. The oxygen in alumina contributed for the smooth burning and resulted in improved performance and emissions. Design/Methodology/Approach The biodiesel (methyl ester) is prepared from the raw Jatropha oil. The B10, B20 and B30 blends of and their nanoemulsions are prepared with the 25, 50, 75 and 100 ppm of nano Al2O3. The prepared JME blends and its nanoemulsions are tested in a variable compression ratio (VCR) diesel engine to evaluate the engine performance and emission characteristics. Findings The nanoemulsion B20 + 50 ppm has given maximum brake thermal efficiency (BTE), and with the increased proportion of nanoparticle, the BTE was reduced. Also, the specific fuel consumption is lowest (0.2826 kg/kWh) for B20 + 50 ppm at the compression ratio 16.5 and full load which is 4.10% lower than the diesel and 5.8% lower than the B20 blend. As the load increases, NOx emission increases owing to higher peak temperatures in the combustion chamber. The JME-nano Al2O3 emulsion reduces the HC and CO emission compared with all other fuels. Originality/Value Novel nano emulsions are prepared, characterized and tested on VCR engine.

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Influence of biodiesel and its blends on CI engine performance and emissions: a review

Cited by 20 publications

References 64 publications

Opportunities and challenges for the application of biodiesel as automotive fuel in the 21st century

Opportunities and challenges for the application of biodiesel as automotive fuel in the 21st century

Experimental investigations on the performance and emissions of compression ignition engine fuelled with lower blends of neem-based biodiesel

Emulsified nano Al₂O₃ – Jatropha methyl ester blends: application in variable compression ratio engine

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Influence of biodiesel and its blends on CI engine performance and emissions: a review

Cited by 20 publications

References 64 publications

Opportunities and challenges for the application of biodiesel as automotive fuel in the 21st century

Opportunities and challenges for the application of biodiesel as automotive fuel in the 21st century

Experimental investigations on the performance and emissions of compression ignition engine fuelled with lower blends of neem-based biodiesel

Emulsified nano Al2O3 – Jatropha methyl ester blends: application in variable compression ratio engine

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Emulsified nano Al₂O₃ – Jatropha methyl ester blends: application in variable compression ratio engine