A review on biodiesel production, combustion, performance, and emission characteristics of non-edible oils in variable compression ratio diesel engine using biodiesel and its blends

Suresh, M.; Jawahar, C.P.; Richard, A. Arun

doi:10.1016/j.rser.2018.04.048

Cited by 217 publications

(98 citation statements)

References 69 publications

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“…To sum up the preceding discussion, NOx formation in CI engines is governed by three main It is seen from Figure 4 that, under all loads and for all of the fuel types, the CO emissions increase moderately when engine speed increases. This trend in terms of engine speed is consistent with the reported literature [47,48]. When the engine is operated at higher speeds, less time is available for the intake process, resulting in reduced volumes of air and richer mixtures within the cylinder.…”

Section: Nox Emissionssupporting

confidence: 91%

“…It was also found that blending the fossil-based diesel with the DSO biodiesels resulted in a reduction of CO emissions in proportion to the fraction of DSO biodiesel in the blend. Once again, this finding is in full agreement with the literature [47,48]. In these cases, the presence of fuel-bound oxygen in the DSO biodiesel provided additional oxidant for the fuel in the combustion chamber and boosted complete oxidation to aid in the formation CO 2 [40,51].…”

Section: Nox Emissionssupporting

confidence: 88%

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Emissions from Combustion of Second-Generation Biodiesel Produced from Seeds of Date Palm Fruit (Phoenix dactylifera L.)

et al. 2019

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Transportation is a vital necessity without which the entire world would come to a standstill. The fossil fuels used to power transportation are consumed at rates of approximately 100,000 times their rate of natural formation, and their consumption subjects the human environment and ecosystem to significant damage. As substitutes for fossil-based diesel, second-generation biodiesels can eliminate many of the challenges concerning first-generation biodiesels in terms of their high cost and the food versus fuel debate. The seeds of the date palm tree have significant oil content and are a promising prospective energy source. This study investigated the potential environmental benefits of this biofuel in terms of diesel tailpipe emission reduction. The various blends of palm date biodiesel were produced and matched to fuel standard requirements, resulting in four standard-compatible blends that were tested in a diesel engine at varying operating conditions for speed and load. Although the biodiesel emissions had lower concentrations of CO2, CO, and HC relative to fossil diesel, higher concentrations of NOx were detected. The results suggest that date-seed biodiesel could become a sustainable energy source for the transport sector, although further technical and economic investigations will be required before its wide deployment.

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Section: Nox Emissionssupporting

confidence: 91%

Section: Nox Emissionssupporting

confidence: 88%

Emissions from Combustion of Second-Generation Biodiesel Produced from Seeds of Date Palm Fruit (Phoenix dactylifera L.)

et al. 2019

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“…However, with a high volume of research in biofuel production, several of them are expected to be discovered, developed, and utilized in the near future. The most commonly studied and used ones are jatropha oil, 22, 115, 116 yellow oleander oil, 40 rubber seed oil, 6, 23, 117 castor oil, 118–120 mahua oil, 121 karanja, 122, 123 and neem seed oil 14, 124 . Recently used examples include Ceiba pentandra , 48, 98 Prunus amygdalus seed oil (Esonye et al .…”

Section: Oil Feedstock Issues and Sustainability For Biodiesel Producmentioning

confidence: 99%

Effectiveness of biogenic waste‐derived heterogeneous catalysts and feedstock hybridization techniques in biodiesel production

Etim

Musonge

Eloka‐Eboka

2020

Biofuels Bioprod Bioref

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Biodiesel has the potential to contribute significantly to the elimination of the present global energy and climate change logjam, but its production and commercialization have been hindered by the diverse nature of the feedstocks used for production. This paper reviews the effectiveness of applying various types of crop and animal waste-derived catalysts together with innovative feedstock hybridization as an economically viable technique for biodiesel production. Feedstock challenges, availability, and sustainability for large-scale applications are addressed with a view to bridging the existing gaps. Challenges in the use of edible oils and algae oil sources and development remain, but the technique of feedstock hybridization appears to be very promising, innovative, and cost-effective for biodiesel production. The present state of biodiesel production could be improved by the application of simple and cost-effective technologies in the feedstock system. High free fatty acid (FFA) content is the major hurdle to the use of most oils, especially low-grade/advanced oil feedstocks, in biodiesel production. This could be addressed through technological application of feedstock hybrids and biogenic waste-derived heterogenous catalysts, and their biochemical modifications. Conventional technology for the large-scale application of inorganically derived catalysts in biodiesel production with various characteristic differences is presented. Heterogenous catalysts derived from biogenic wastes and their modification could be used to overcome associated problems with the use of inorganic catalysts in biodiesel production. Biogenic waste-derived heterogenous catalysts are renewable, available, eco-friendly, and cost-effective. Technological applications of heterogeneous catalysts derived from biogenic waste are outlined and reviewed, considering various materials and different modification techniques to identify appropriate options for scaling up development. This review also discusses fundamental considerations for the Review

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“…Several studies [22,23] state that biodiesel has positive effects on exhaust emissions of CI engines: carbon monoxide (CO) is lowered up to 30-50 % depending on the share of biodiesel in the blend [24], as well as hydrocarbons (HC) and particulate matter (PM). The main responsible for these positive effects is the higher oxygen content and the lower hydrogen and carbon content compared to petro-diesel [6,24].…”

Section: Biodiesel and Bioethanol Use In Compression Ignition Enginesmentioning

confidence: 99%

Proposal of a Predictive Mixed Experimental- Numerical Approach for Assessing the Performance of Farm Tractor Engines Fuelled with Diesel- Biodiesel-Bioethanol Blends

et al. 2019

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The effect of biofuel blends on the engine performance and emissions of agricultural machines can be extremely complex to predict even if the properties and the effects of the pure substances in the blends can be sourced from the literature. Indeed, on the one hand, internal combustion engines (ICEs) have a high intrinsic operational complexity; on the other hand, biofuels show antithetic effects on engine performance and present positive or negative interactions that are difficult to determine a priori. This study applies the Response Surface Methodology (RSM), a numerical method typically applied in other disciplines (e.g., industrial engineering) and for other purposes (e.g., set-up of production machines), to analyse a large set of experimental data regarding the mechanical and environmental performances of an ICE used to power a farm tractor. The aim is twofold: i) to demonstrate the effectiveness of RSM in quantitatively assessing the effects of biofuels on a complex system like an ICE; ii) to supply easy-to-use correlations for the users to predict the effect of biofuel blends on performance and emissions of tractor engines. The methodology showed good prediction capabilities and yielded interesting outcomes. The effects of biofuel blends and physical fuel parameters were adopted to study the engine performance. Among all possible parameters depending on the fuel mixture, the viscosity of a fuel blend demonstrated a high statistical significance on some system responses directly related to the engine mechanical performances. This parameter can constitute an interesting indirect estimator of the mechanical performances of an engine fuelled with such blend, while it showed poor accuracy in predicting the emissions of the ICE (NOx, CO concentration and opacity of the exhaust gases) due to a higher influence of the chemical composition of the fuel blend on these parameters; rather, the blend composition showed a much higher accuracy in the assessment of the mechanical performance of the ICE.

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A review on biodiesel production, combustion, performance, and emission characteristics of non-edible oils in variable compression ratio diesel engine using biodiesel and its blends

Cited by 217 publications

References 69 publications

Emissions from Combustion of Second-Generation Biodiesel Produced from Seeds of Date Palm Fruit (Phoenix dactylifera L.)

Emissions from Combustion of Second-Generation Biodiesel Produced from Seeds of Date Palm Fruit (Phoenix dactylifera L.)

Effectiveness of biogenic waste‐derived heterogeneous catalysts and feedstock hybridization techniques in biodiesel production

Proposal of a Predictive Mixed Experimental- Numerical Approach for Assessing the Performance of Farm Tractor Engines Fuelled with Diesel- Biodiesel-Bioethanol Blends

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