Showing papers on "Diesel engine published in 2018"
TL;DR: In this paper, an overview of the latest technology of the engine-Organic Rankine Cycle system in the applications of waste heat recovery from the heat sources with different temperatures, with particular concentration on diesel engines.
238 citations
TL;DR: In this article, the authors provide a comprehensive review of biodiesel as an alternative fuel for marine diesel engine applications and conclude that biodiesel and its blends have a bright future in the marine sector, provided some of the highlighted issues can be solved.
Abstract: Transportation and shipping activities are major contributor to air pollution at sea where most of it occurs as a result of exhaust emissions from ships. Stringent emission limitations enforced by the International Maritime Organization have hastened the need to find a new alternative fuel for marine diesel engines. Thus, biodiesel fuel was chosen as one of the environmentally friendly alternative energy that can reduce ship toxic gas emissions and at the same time reduces dependence on petroleum-based fuels. Therefore, the purpose of this paper is to provide a comprehensive review of biodiesel as an alternative fuel for marine diesel engine applications. This review covers the biodiesel fuel background, engine performance, history, recent progress, engine warranty, issues, challenges, and possible solutions on using biodiesel for marine applications. A significant number of literatures from indexed journals were cited accordingly. The results of previous studies had shown that the use of biodiesel would mostly increase the amount of brake specific fuel consumption and nitrogen oxide gas while conversely reducing other toxic gas emissions. Although a number of issues and challenges arise, most marine engine manufacturers give conditional warranty against the use of biodiesel in the engines. The study concluded that biodiesel and its blends have a bright future in the marine sector, provided some of the highlighted issues can be solved.
234 citations
TL;DR: In this article, an experimental investigation is carried out to evaluate the performance and exhaust emissions of a single cylinder diesel engine fuelled with biodiesel-bioethanol-diesel blends.
209 citations
TL;DR: In this article, a diesel engine performance and exhaust emissions were studied experimentally for burning waste cooking-oil biodiesel blend with diesel fuel, at different engine loads from zero to full load.
192 citations
TL;DR: In this paper, the authors put forward a comprehensive assessment of biodiesel production from various non-edible oils such as waste fried oil, pyrolysis oil, preheated palm oil, waste cooking oil, jatropha oil, karanja oil etc.
Abstract: The dwindling of natural resources such as crude oil, coal etc. has made it essential to switch over to biodiesel. Biodiesel has a number of properties which are beneficial to the environment. The main advantage of biodiesel is that it's carbon neutral and it does not create carbon dioxide (CO2). In addition, it leads to a decrease in pollution by reducing the emission of harmful and hazardous substances to the atmosphere and greatly improves the engine performance. This paper puts forward a comprehensive assessment of biodiesel production from various non-edible oils such as waste fried oil, pyrolysis oil, preheated palm oil, waste cooking oil, jatropha oil, karanja oil etc. It also serves as an index to measure combustion, performance and emission characteristics in a variable compression ratio (VCR) diesel engine, where biodiesel is blended with diesel. The need for switching over to VCR engine is that it provides better fuel efficiency, up to 30% reduction in fuel consumption, better control at peak cylinder pressure, ability to use multi-fuel and reduction in the exhaust emissions when compared to that of a constant compression ratio diesel engine.
176 citations
TL;DR: In this paper, the combined application of water additive and metal-based additive in the biodiesel-diesel blend fuel was investigated, and the results showed that the water additive was beneficial to improving the mixing of air and fuel due to the micro-explosion.
174 citations
TL;DR: In this paper, the influence of CNT and Ag nano-particles on combustion parameters of diesel engine was investigated and it was found that the heat release rate of the diffusion combustion phase is higher for biodiesel and biodiesel with nano additives when compared with that of neat diesel fuel due to the higher oxygen content of the blended fuels.
171 citations
TL;DR: In this paper, the effects of biodiesel blends, fuel injection timing and split injection schemes on the engine performance, emissions and combustion characteristics of a medium-duty diesel engine are investigated, and it was found that with the use of B50, simultaneous NOx and smoke suppression from the levels of petroleum diesel fuel is attainable in parallel with the implementation of late SOI timing and triple injection scheme in a diesel engine.
170 citations
TL;DR: In this article, the effect of nanoparticle-diesel fuel blends on combustion characteristics, performances and exhaust emissions of a four-stroke single-cylinder diesel engine was investigated.
160 citations
TL;DR: In this article, diesel fuel was mixed with biodiesel, and biodiesel-vegetable oil (VO)-alcohol blends using the higher alcohols of propanol (Pro) and pentanol (Pen).
157 citations
TL;DR: In this paper, the influence of the various alcohol additions in diesel fuel on combustion, performance, and exhaust emission characteristics of a single-cylinder diesel engine was investigated at different loads.
TL;DR: In this article, the effect of aluminium oxide nanoparticles as additive to pongamia methyl ester (PME) blends on performance, combustion and emission characteristics of a single cylinder direct injection diesel engine operated at constant speed at different operating conditions was investigated.
TL;DR: In this article, the authors aimed to mitigate emissions parameter like NOX, smoke, particulate matter (PM) and summary of emissions (SE) from five different categories such as, edible and non-edible vegetable oils, waste animal fats, waste oil and alcohol biodiesel.
TL;DR: In this paper, the effect of the TiO2 nanofluid on the formation of hydrocarbon, carbon-monoxide, nitrogen oxide and smoke emission from a neat mustard oil methyl ester fueled diesel engine was investigated.
TL;DR: In this article, an experimental investigation was conducted to recommend the optimal concentration of alumina nanoparticles (Al2O3) into Jojoba biodiesel-diesel (JB20D) fuel blend at which the best diesel engine performance and exhaust emissions were attained.
TL;DR: In this paper, six different binary (D-nB and D-Pn) fuel mixtures were obtained by mixing the diesel fuel with n-butanol and 1-pentanol at low and high mixing ratios (5, 25% and 35% alcohol by volume).
TL;DR: In this article, the combined influence of EGR and injection timing on the combustion, performance and emission characteristics of a DI diesel engine fueled with neat waste plastic oil (WPO) was investigated at three injection timings (21, 23, and 25°CA bTDC) and EGR rates (10, 20 and 30%).
TL;DR: In this paper, a single-cylinder DI diesel engine with diesel/biodiesel blend (B5) emulsified with water at different concentrations, i.e., 3, 5, and 7 wt%.
TL;DR: In this article, the authors developed a dynamic model of TEG system designed for vehicle waste heat recovery, which is made up of counter-flow heat exchangers (HXRs) and commercial thermoelectric modules (TEMs).
TL;DR: In this paper, the authors evaluated the effect of the biodiesel and various alcohols additions to petroleum-based diesel fuel (DF) on combustion, performance and emissions of a single-cylinder diesel engine at different engine loads.
TL;DR: In this article, the effect of biofuel properties on RCCI combustion and emissions was investigated on a single-cylinder diesel engine, where three low reactivity oxygenated biofuels, i.e., n-butanol, 2,5-dimethylfuran (DMF) and ethanol, were injected in the intake port and biodiesel was directly injected into the cylinder to realize RCCC operation.
TL;DR: In this paper, high-rise in the air pollution levels due to combustion of the fossil fuel gives us the opportunity to discover environmentally friendly and clean fuels for the engines for the cars.
Abstract: High-rise in the air pollution levels due to combustion of the fossil fuel gives us the opportunity to discover environmentally friendly and clean fuels for the engines. Biodiesel originated from c...
TL;DR: In this paper, the effect of graphene oxide (GO) nanoparticles, as novel fuel additives, on the engine performance and emission characteristics of a diesel engine was investigated, where the GO nanoparticles were mixed with B0, B10, and B20 Ailanthus altissima biodiesel blends.
TL;DR: In this paper, the effects of mustard oil biodiesel-diesel fuel blends on combustion, performance and emission characteristics in depth were highlighted. But no huge differences were seen on cylinder pressure between the mustard oil- biodiesel diesel fuel blends and diesel fuel.
TL;DR: In this paper, investigations were performed on a dual-fueled constant-speed engine and the emissions and performance of a diesel engine were investigated, and after moving to the dual fuel, the performance of the engine was improved.
Abstract: In this paper, investigations were performed on a dual-fueled constant-speed engine. Initially, the emissions and performance of a diesel engine were investigated, and after moving to the dual-fuel...
TL;DR: In this article, the effects of hydrogen addition on a diesel engine were investigated in terms of engine performance and emissions for four cylinders, water cooled diesel engine, where hydrogen was added through the intake port of diesel engine.
TL;DR: In this article, the effects of adding graphene nanoplatelets (GNPs) into jatropha methyl ester-diesel blended fuel (20% by volume JB20 + 80% diesel) on the performance, combustion, and emission characteristics of a diesel engine were experimentally investigated.
TL;DR: In this paper, the impact of adding graphene oxide nanoparticles (GO) to neat Jatropha Methyl Ester (JME) on a single cylinder air cooled direct injection four stroke diesel engine was investigated.
TL;DR: In this paper, a 3-factor 3-level full factorial experimental design was employed to find the optimum combination of exhaust gas recirculation (EGR), injection timing and alcohol with an objective to minimize NOx and smoke emissions with minimum BSFC.
TL;DR: In this article, 1,4-dioxane was used to enhance the combustion, emission and performance of a single cylinder diesel engine through modifying the fuel by adding an additive together with water-in-diesel emulsion fuel.