Neat fuel influence on biodiesel blend emissions

Thompson, Gregory; Nuszkowski, John

doi:10.1243/14680874jer04909

Cited by 22 publications

(9 citation statements)

References 41 publications

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“…In this cycle, the CO 2 released into the atmosphere, when the biodiesel fuel burns, is recycled by growing plants, which are later converted into fuel. Since the sulfur and the aromatic content of biodiesel fuels are negligible while their oxygen (O 2 ) con-centration is substantially high [7], significant reductions of sulfur dioxide (SO 2 ), soot, carbon monoxide (CO) and unburned hydrocarbons(UHC) can be achieved [8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Impact of biodiesel fuel on cold starting of automotive direct injection diesel engines

Broatch

Tormos

Olmeda

et al. 2014

Energy

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The use of biodiesel fuels in diesel engines is gaining attention as a promising solution to control CO 2 emissions. Great research efforts have been carried out to identify the impact of biodiesel physical and chemical properties on engine systems and processes. Most of these investigations were performed in warm conditions, but the suitability of biodiesel for starting the engine at under-zero ambient temperatures has not widely evaluated. The surface tension and the viscosity of biodiesel fuels are higher compared to those of standard diesel and, in cold conditions, these differences become critical since the injection fuel rate is largely affected and consequently the combustion process can be deteriorated. In order to improve its flow characteristics at cold temperatures and make them more suitable for low temperatures operation, additives are used in biodiesel fuels. In this paper the suitability of different biodiesel fuels, with and without additives, for cold starting of DI diesel engines has been evaluated. The results have shown that the engine start-ability with pure biodiesel fuels can be largely deteriorated. However, using diesel/biodiesel blends the start-ability of the engine can be recovered with the additional benefit of reducing the opacity peak of the exhaust gases.

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Section: Introductionmentioning

confidence: 99%

Impact of biodiesel fuel on cold starting of automotive direct injection diesel engines

Broatch

Tormos

Olmeda

et al. 2014

Energy

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show abstract

“…The sulphur and aromatics content of biodiesel fuels are negligible while their oxygen (O 2 ) concentration is substantially high (in the order of 10% on weight basis) [2]. These characteristics allow significant reductions of sulphur dioxide (SO 2 ), soot, carbon monoxide (CO) and unburned hydrocarbons (UHC) [3,4]. However, due to their influence on the ignition delay (ID), the production of nitrogen oxides (NO x ) during combustion is usually increased [5].…”

Section: Introductionmentioning

confidence: 99%

Impact of Fischer–Tropsch and biodiesel fuels on trade-offs between pollutant emissions and combustion noise in diesel engines

Torregrosa

Broatch

Plá

et al. 2013

Biomass and Bioenergy

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Over recent decades, direct injection diesel engines have become the propulsion systems most commonly used in automotive vehicles in Europe. Their leading position in the European market is due to improvements in performance, driveability and their capacity for facing the increasingly restrictive standards to which are subject. Nevertheless, their main drawbacks are related to the emission levels, the use of fossil fuels and the engine noise. To mitigate the first two problems, alternative fuels are being used in these engines with encouraging results. The impact of these fuels on engine noise might therefore be analyzed in order to evaluate the feasibility of such a solution. In this work the effect of diverse alternative fuels on emissions, performance and engine noise quality was analyzed. Compared with standard diesel fuel, results show a scarce variation of combustion noise quality whereas soot level decreases, NO x emissions increase and specific consumption deteriorates.

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“…The use of fatty acid methyl ester (FAME) as a mixture of biodiesel components in vehicles is known to reduce exhaust emissions in the form of CO, HC, and PM, but raises NOx. A review of the use of biodiesel blends in high ratios in research scale has been widely practiced [5][6][7]. But fuel technology has made great strides in the last years and different biobased fuels show more interesting characteristics than the fatty acid methyl ester fuels (FAME).…”

Section: Introductionmentioning

confidence: 99%

Effect of hydrotreating in biodiesel on the growth of deposits in the combustion chamber as a solution for the deposits reduction in the usage of biodiesel

et al. 2018

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The usage of biodiesel has been encouraged by government based on the issuance of The Regulation of Minister of Energy and Mineral Resources No. 12/2015 on the supply, utilization, and administration of biofuels as other alternative fuels. This regulation sets mandatory biodiesel mixture by 30 percent for national energy consumption by 2025. But the usage of biodiesel with a larger percentage in diesel engines still leaves some problems with the decline of biodiesel fuel quality and the formation of deposits in combustion chamber and injectors. The purpose of this study is to compare biodiesel fuel (B20) with Hydrotreated Biodiesel (HBD) in an experiment by using fuel droplet method on a plate to observe the characteristics and mechanism of deposit formation. Plates are heated in few temperature variations in a sealed test rig so that the conditions are similar to the engine real conditions. Deposit growth of Hydrotreated Biodiesel as known as Hydrotreated Vegetable Oil (HVO) less better than Fatty Acid Methyl Ester (FAME). It may occurred because the lubricity of HVO is very low due to the absence of sulfur and oxygen compounds in the fuel, that causes oxidation that can lead to deposits in the combustion chamber..

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Neat fuel influence on biodiesel blend emissions

Cited by 22 publications

References 41 publications

Impact of biodiesel fuel on cold starting of automotive direct injection diesel engines

Impact of biodiesel fuel on cold starting of automotive direct injection diesel engines

Impact of Fischer–Tropsch and biodiesel fuels on trade-offs between pollutant emissions and combustion noise in diesel engines

Effect of hydrotreating in biodiesel on the growth of deposits in the combustion chamber as a solution for the deposits reduction in the usage of biodiesel

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