Influence of fuel injection timing strategies on performance, combustion, emissions and particulate matter characteristics fueled with rapeseed methyl ester in modern diesel engine

Dhahad, Hayder A.; Fayad, Mohammed A.; Chaichan, Miqdam T.; Jaber, Alaa Abdulhady; Megaritis, Thanos

doi:10.1016/j.fuel.2021.121589

Cited by 49 publications

(21 citation statements)

References 58 publications

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“…Therefore, the combustion efficiency and fuel mass will increase from E10 combustion in comparison with diesel fuel (Figue 2). The general trend of BSFC from E10 is consistent with previous published studies (Fayad, 2020;Dhahad et al, 2021). Applied three ratios of EGR lead to increase the BSFC by 18.7%, 22.4% and 37.4%, respectively, for all fuels tested.…”

Section: Performance Characteristicssupporting

confidence: 91%

“…In different sectors, the energy is normally generated from the combustion of fossil fuels to meet the requirements of industrial sectors and transportation. The use of fossil fuels is beneficial on the environment and health as well as global warming and climate change (Dhahad et al, 2021;Charlson et al, 2022;Al-Ghezi et al, 2022;Dhahad and Chaichan, 2020). The adverse impact of fossil fuels and reduction in fossil fuel supplies leads to accelerated research to find a new sources of renewable energy and environmental-friendly sources (Chaichan et al, 2018;Al-Ghezi and Mahmoud et al, 2022;Kim and Choi, 2010;Al-Ghezi et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Emissions Characteristics and Engine Performance from the Interaction Effect of EGR and Diesel-Ethanol Blends in Diesel Engine

Fayad

Al-Ghezi

Hafad

et al. 2022

Int. J. Renew. Energy Dev.

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Recently, most of the researchers focused on provide lower greenhouse gas emissions that emitted from diesel engines by using renewable fuels to be good alternative to the conventional diesel fuel. Ethanol can be derived from renewable sources such as sugar cane, corn, timber and dates. In the current study, the ethanol fuel used in the tests was derived from the dates. The effects of using exhaust gas recirculation (EGR) diesel-ethanol blend (E10) with on engine performance and emissions characteristics have been studied in diesel engine under various engine loads. This study focused the use of oxygen in the bio-ethanol composition to compensate for the decrease occurred by the addition of EGR, which improves the engine performance and reduces its emissions. In this experiment, the ratios of EGR were 10%, 20% and 30% as well as 10% ratio of ethanol was blended into the diesel fuel blend under fixed engine speed. A traditional (without additional systems to reduce emissions) four cylinders direct injection (DI) diesel engine was used for all tests. The brake specific fuel consumption (BSFC) increased with increasing the EGR ratio by 10%, 20% and 30% by 18.7%, 22.4% and 37.4%, respectively. The thermal efficiency decreased under variable conditions of engine load for different ethanol blends. Furthermore, the emissions of NOX decreased when fuelled B10 into the engine in comparison with diesel under low engine load. Significant reduction in the NOx emissions were found when applied EGR in the tests than to the absence EGR for E10 blend and diesel. The NOx reduction rate was 12.3%, 30.6% and 43.4% when EGR rate was 10%, 20% and 30%, respectively. In addition, the concentrations of HC and CO emissions decreased more by 8.23% and 6.4%, respectively, when using E10 in comparison with the diesel for various engine loads. It is indicated that the oxygen reduction by EGR effect was compensated from ethanol blend combustion. The results showed that the combination use of E10 and EGR leads to significant reduction in engine emissions accompanied with partial reduction in the engine performance.

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Section: Performance Characteristicssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Emissions Characteristics and Engine Performance from the Interaction Effect of EGR and Diesel-Ethanol Blends in Diesel Engine

Fayad

Al-Ghezi

Hafad

et al. 2022

Int. J. Renew. Energy Dev.

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“…After adding nanoparticles of CuO2 to the RME and diesel a significant reduction was found in BSFC compared to the neat fuel as illustrated in Figure 4 at all engine speed. Previous studies reported similar trend of BSFC (Dhahad et al, 2021;Fayad, 2021). The addition of CuO2 nanoparticles into the fuel increases the heating value of fuel.…”

Section: Brake Specific Fuel Consumptionsupporting

confidence: 69%

“…The additional oxygen from CuO2 nanoparticle and oxygen born in RME fuel leads to improve the combustion process which result in inhibition of soot formation . Previous study has shown that oxygen-born in the RME boost the oxidation rate of emitted particles during the combustion process (Dhahad et al, 2021;. The oxidation of carbon promoted due to the oxygen availability and enough combustion temperature which results in significantly decreases the concentration and number of soot nanoparticles that already formed.…”

Section: Soot Nanoparticles Characteristicsmentioning

confidence: 98%

Influence of Renewable Fuels and Nanoparticles Additives on Engine Performance and Soot Nanoparticles Characteristics

Fayad

Abed

Omran

et al. 2022

Int. J. Renew. Energy Dev.

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The fuel combustion in diesel engines can be improved by adding nanomaterials to the fuel which result in an reduction in pollutant emissions and enhance the quality of fuel combustion. The engine performance and soot nanoparticles characteristics were evaluated in this study with adding nanoparticles of copper oxide (CuO2) to the rapeseed methyl ester (RME) and diesel under variable engine speeds. The addition of CuO2 to the RME significantly improve brake thermal efficiency (BTE) and decline the brake specific fuel consumption (BSFC) by 23.6% and 7.6%, respectively, compared to the neat RME and diesel fuel. The inclusion CuO2 nanoparticles into the RME and diesel led to decrease the concentration and number of particulate matter (PM)by 33% and 17% in comparison with neat RME and diesel without nano additives, respectively. Moreover, PM is significantly decreased by 31.5% during the RME combustion in comparison with neat RME and diesel under various engine speeds. It was also obtained that the number of emitted particles (npo) reduced by 23.5% with adding nanoparticles to the RME in comparison with diesel, while the diameter of soot nanoparticles (dpo) increased by 8.6% in comparison with diesel. Furthermore, the addition CuO2 to the RME decreased the size and number of particles more than to the diesel fuel.

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“…In works [7][8][9][10][11], studies were carried out on the use of various alternative fuels in diesel engines together with diesel fuel simultaneously in different proportions and different load-speed operating conditions.…”

Section: Introductionmentioning

confidence: 99%

Development of a bi-fuel power supply system for a diesel engine

Buzikov

Matushkin

Matushkina

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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The relevance of the study is due to the lack of systems in which the proportions of the used fuels in the mixture and the values of the cycle supply are simultaneously controlled depending on the load-speed mode of the diesel engine. The aim of the research is to develop a design for a bi-fuel power supply system for a diesel engine, which allows for the simultaneous regulation of the proportions of the components of a mixture consisting of alternative and diesel fuels, as well as the values of the cyclic supply of this mixture to the diesel cylinders. As a result of the research, an algorithm was calculated for the simultaneous control of the proportions of the components of a mixture consisting of alternative and diesel fuels, as well as the values of the cyclic supply of this mixture to the diesel cylinders. As a result of the operation of the fuel supply system on mixtures of diesel and alternative fuels according to the developed algorithm, it made it possible to achieve the identical operation of a diesel engine on pure diesel fuel at all load-speed modes of diesel operation. Also, in the course of the research carried out, a bi-fuel power supply system for a diesel engine was developed, which makes it possible to simultaneously regulate the amount (cycle supply) and the composition of a mixture consisting of diesel and alternative fuel supplied to the diesel cylinders, depending on the speed and load modes of operation.

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Influence of fuel injection timing strategies on performance, combustion, emissions and particulate matter characteristics fueled with rapeseed methyl ester in modern diesel engine

Cited by 49 publications

References 58 publications

Emissions Characteristics and Engine Performance from the Interaction Effect of EGR and Diesel-Ethanol Blends in Diesel Engine

Emissions Characteristics and Engine Performance from the Interaction Effect of EGR and Diesel-Ethanol Blends in Diesel Engine

Influence of Renewable Fuels and Nanoparticles Additives on Engine Performance and Soot Nanoparticles Characteristics

Development of a bi-fuel power supply system for a diesel engine

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