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Journal ArticleDOI

Combustion characteristics of a diesel engine running with Mandarin essential oil -diesel mixtures and propanol additive under different exhaust gas recirculation: Experimental investigation and numerical simulation

TL;DR: In this article, the authors investigated the impacts of introducing mandarin essential oil with diesel fuel on the engine performance operated under numerous loads and a fixed speed of 1500-rpm, and the experimental findings demonstrate that the cylinder pressure and HRR are decreased by 3% and 2.5%, respectively, with the supplement of mandarin-essential oil with Diesel fuel.
About: This article is published in Case Studies in Thermal Engineering.The article was published on 2021-08-01 and is currently open access. It has received 21 citations till now. The article focuses on the topics: Diesel fuel & Diesel engine.
Citations
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Journal ArticleDOI
TL;DR: In this paper , the effects of the boron nanoparticles reinforced diesel fuel along with various biogas (BG) flow rates (0.5, 1, and 2 L/min) on the engine performance and emission characteristics of a diesel engine were investigated.
Abstract: This study aims to deeply investigate the effects of the boron nanoparticles reinforced diesel fuel along with various biogas (BG) flow rates (0.5, 1, and 2 L/min) on the engine performance and emission characteristics of a diesel engine . The tests were carried out using a single-cylinder, four-stroke, direct injection , compression-ignition engine at a constant engine speed of 1500 rpm and under the varying engine loads from 2.5 to 10 Nm with gaps of 2.5 Nm. In the results, it is seen that EGT started to decrease in both the addition of boron nanoparticles and the addition of biogas compared to that of conventional diesel fuel (DF). EGT reduced by 8.6% for DF+Boron test fuel, 14.4% for DF+Boron+ 0.5 BG, 21% for DF+Boron+ 1 BG, and 23.4% for DF+Boron+ 2 BG. Compared to diesel fuel, CO, NOx, and HC emissions decreased with the addition of nanoparticles at all loads. However, as the amount of biogas increased, CO and HC emissions increased, but NOx emissions decreased. CO emission dropped by 22.2% for DF+Boron test fuel, however, increased to be 5.6%, 16.7%, and 36.1% for DF+Boron+ 0.5 BG, DF+Boron+ 1 BG, and DF+Boron+ 2 BG respectively. NOx emission reduced by 4.9%, 8.6%, 10.7%, and 14.8% for DF+Boron, DF+Boron+ 0.5 BG, DF+Boron+ 1 BG, and DF+Boron+ 2 BG respectively. In comparison to that of conventional DF, the brake specific fuel consumption (BSFC) value decreased by 8.42% for DF+Boron test fuel due to high energy content of nanoparticles, but it increased by 10.94% for DF+Boron+ 0.5 BG, 28.01% for DF+Boron+ 1 BG, and 60.2% for DF+Boron+ 2 BG. In addition, brake thermal efficiency BTE value increased by 8.04% for boron-added test fuel, but it declined by 9.41% for DF+Boron+ 0.5 BG, 19.38% for DF+Boron+ 1 BG, and 32.2% for DF+Boron+ 2 BG as compared to that of DF. In the conclusion, it is noticed that the engine characteristics have worsened by the introduction of biogas into the cylinder, but these worsened characteristics can be improved with the presence of boron nitride nanoparticles.

10 citations

Journal ArticleDOI
01 Aug 2022-Energy
TL;DR: In this article , an optimization method using Non-dominated Sorting Genetic Algorithm (NSGA) Ⅲ to drive support vector machine (SVM) is presented, and the SVM with fast calculation speed is used in the calculation of NSGA ⎢ fitness evaluation.

8 citations

Journal ArticleDOI
01 Apr 2022-Energy
TL;DR: In this article , the effects of dual fuel combustion (DFC) of isobutanol on performance, emission, and energy-exergy characteristics of an off-road diesel engine using diesel and waste cooking oil biodiesel were investigated.

8 citations

Journal ArticleDOI
01 Feb 2023-Energy
TL;DR: In this article , a set of experiments are planned to study the emission and performance attributes of a direct injection (DI) diesel engine operating on poultry fat biodiesel, and the three proportions of diesel-biodiesel-ethanol blends with varying vol.

6 citations

Journal ArticleDOI
TL;DR: In this paper , a short review of the literature on heterogeneous catalyzed biodiesel generation in the presence of different cosolvents is presented, where the authors show that the application of cosolvent in heterogeneously catalyzed three-phase systems substantially reduces the mass transfer limitation between alcohol and oil phases, which leads to enhancements in biodiesel yield.
Abstract: Biodiesel is gaining recognition as a good replacement for typical diesel owing to its renewability, sustainability, and eco-friendly nature. Transesterification is the leading route for biodiesel generation, which occurs during homogeneous/heterogeneous/enzymatic catalysis. Besides this, the usage of heterogeneous catalysts is considered more advantageous over homogeneous catalysts due to the easy catalyst recovery. Consequently, numerous heterogeneous catalysts have been synthesized from multiple sources with the intention of making the manufacturing process more efficient and cost-effective. Alongside this, numerous researchers have attempted to improve the biodiesel yield using heterogeneous catalysts by introducing cosolvents, such that phase limitation between oil and alcohol can be minimized. This short review is aimed at examining the investigations performed to date on heterogeneously catalyzed biodiesel generation in the presence of different cosolvents. It encompasses the techniques for heterogeneous catalyst synthesis, reported in the literature available for heterogeneous catalyzed biodiesel generation using cosolvents and their effects. It also suggests that the application of cosolvent in heterogeneously catalyzed three-phase systems substantially reduces the mass transfer limitation between alcohol and oil phases, which leads to enhancements in biodiesel yield along with reductions in values of optimized parameters, with catalyst weight ranges from 1 to 15 wt. %, and alcohol/oil ratio ranges from 5.5 to 20. The reaction time for getting the maximum conversion ranges from 10 to 600 min in the presence of different cosolvents. Alongside this, most of the time, the biodiesel yield remained above 90% in the presence of cosolvents.

5 citations

References
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01 Jun 1985
TL;DR: In this article, a zero-dimensional model of a turbocharged medium speed diesel engine is used to evaluate scavenge and results for port flow co-efficients for a two-stroke diesel engine.
Abstract: Fundamental operating principles early internal combustion engine development, characteristics of internal combusion engines, additional types of internal combustion engine, prospects for internal combustion engines, thermodynamic principles introduction and definitions of efficience, ideal air standard cycles, comparison between thermodynamic and mechanical cycles, additional performance parameters for internal combustion engines, fuel-air cycle, computer models, combustion and fuels combustion chemistry and fuel chemistry, combustion thermodynamics, dissociation, combustion in spark ignition engines, combustion in compression ignition engines, fuels and additives, engine emissions, combustion modelling, spark ignition engines combustion chambers, catalysts and emissions from spark ignition engines, mixture preparation, electronic control engines, compression ignition engines direct injection (DI) systems, indirect injection (IDI) systems, cold starting of compression ignition engines, fuel injection equipment, diesel engine emissions, induction and exhaust processes valve gear, flow characteristics of poppet valves, valve timing, unsteady compressible fluid flow, manifold, silencing, two stroke engines two stroke gas flow performance parameters, scavenging systems, scavenge modelling, experimental techniques for evaluating scavenge and results for port flow co-efficients, engine performance and technology, in-cylinder motion flow measurement techniques, turbulence, turbocharging radial flow and axial flow machines, turbocharging the compression ignition engine, turbocharging the spark ignition engine, engine modelling zero-dimensional modelling, application of modelling to a turbocharged medium speed diesel engine, mechanical design considerations the disposition and number of the cylinders, cylinder block and head materials, the piston and rings, the connecting-rod, crankshaft, camshaft and valves, lubrication and bearings, advanced design concepts, heat transfer in internal combustion engines engine cooling, liquid coolant systems, experimental facilities quasi-steady engine instrumentation, experimental accuracy, measurement of exhaust emissions, computer based combustion analysis, advanced test systems, case studies Jaguar V12 HE engine, Chrysler 2.2 litre spark ignition engine, Ford 2.5 litre DI diesel engine. Appendices: the use of SI units answers to numerical problems engine specifications stratified charge engines engine tuning.

1,106 citations

Journal ArticleDOI
TL;DR: In this paper, the authors summarized the literature from most recent articles on nanoparticles as a liquid fuel additive and discussed the effect of dispersion of several nanoparticles on the enhancement in the performance characteristics and reduction in emission of a CI engine fuelled with diesel-biodiesel blends.

311 citations

Journal ArticleDOI
15 Jul 2016-Fuel
TL;DR: In this paper, the authors investigate and compare the basic fuel properties of the ternary blends of diesel (D), waste oil methyl ester (biodiesel (B)) and the higher alcohols of propanol (Pro), n-butanol (nB) and 1-pentanol (Pn), and their effects on engine performance and exhaust emissions of a diesel engine.

307 citations

Journal ArticleDOI
Zunqing Zheng1, Lang Yue1, Haifeng Liu1, Yuxuan Zhu1, Xiaofan Zhong1, Mingfa Yao1 
TL;DR: In this paper, the effect of two-stage injection on combustion and emission characteristics under high EGR (46%) condition were experimentally investigated, and the results showed that blending gasoline or/and n-butanol in diesel improves smoke emissions while induces increase in maximum pressure rise rate (MPRR).

195 citations