Influence of LPG and DME Composition on Spark Ignition Engine Performance

Fabiś, Paweł; Flekiewicz, B.

doi:10.3390/en14175583

Cited by 11 publications

(8 citation statements)

References 20 publications

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“…The results of the studies presented in three papers validate the alternative fuel additives [1,4,5]. Fabiś et al [1] present the potential of dimethyl ether as fuel for SI engines.…”

Section: Contributions In This Issuementioning

confidence: 65%

“…The results of the studies presented in three papers validate the alternative fuel additives [1,4,5]. Fabiś et al [1] present the potential of dimethyl ether as fuel for SI engines. Paneerselvam et al [4] evaluate peppermint bio-oil as an additive applied as a cetane improver.…”

Section: Contributions In This Issuementioning

confidence: 65%

“…Finally, researchers, investors, legislators, and society need to have open access to well-organized, up-to-date, and relevant developments in the above fields in order to support the necessary transition of the fuel market. Nine articles have been successfully submitted to the Special Issue of Energies on the subject area of "Renewable Fuels for Internal Combustion Engines" [1][2][3][4][5][6][7][8][9]. All manuscripts present the results of original experiments in complementary sub-areas of this.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Renewable Fuels for Internal Combustion Engines

2021

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The continuous need for systematization and open dissemination of knowledge on Renewable Fuels intended for use in Internal Combustion Engines forms the premise of the presented Special Issue titled “Renewable Fuels for Internal Combustion”. Experts in the field were encouraged to share their latest findings in the form of original research papers, case studies, or short reviews. Works targeting all aspects of the value chain were considered necessary, including the following: (liquid and gaseous) fuel production process, upgrading (catalytic and fractional blending), up to end, valorization in combustion engines (conventional and advanced concepts). Finally, techno-economic analyses aiming to valorize the value chain holistically were warmly encouraged to submit papers in this Special Issue of the Energies Journal. In this book, the reader will find successful submissions that present the latest findings from the discussed research field, encapsulated into nine chapters.

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“…The results of the studies presented in three papers validate the alternative fuel additives [1,4,5]. Fabiś et al [1] present the potential of dimethyl ether as fuel for SI engines.…”

Section: Contributions In This Issuementioning

confidence: 65%

Section: Contributions In This Issuementioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Renewable Fuels for Internal Combustion Engines

2021

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“…Various injection strategies [3][4][5][6][7][8], engine operation conditions [9][10][11] and fuel blends [12][13][14][15][16][17][18] of DME-fueled engines have been investigated. Youn et al [8] showed that the use of DME was associated with a higher pressure and earlier increase in the Energies 2022, 15,1912 2 of 11 heat release rate (HRR) compared to diesel, because the ignition delay was shorter, the vaporization characteristics were more favorable, and the cetane number was higher.…”

Section: Introductionmentioning

confidence: 99%

Combustion Performance and Low NOx Emissions of a Dimethyl Ether Compression-Ignition Engine at High Injection Pressure and High Exhaust Gas Recirculation Rate

Youn

Jeon

2022

Energies

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Dimethyl ether (DME) is a promising alternative to diesel for compression-ignition (CI) engines used in various industrial applications. However, the high nitrogen oxide (NOx) emissions of DME combustion have restricted its use. The primary cause of high NOx emissions is a high combustion temperature. In this study, a high exhaust gas recirculation (EGR) rate was used when testing a common-rail direct injection CI engine suitable (with minor modifications) for a passenger car. A modified fuel supply system created high injection pressure during evaluation of combustion performance. The physical and chemical properties of DME were the principal determinants of the ignition delay, combustion speed, and heat release rate. Although a high injection pressure accelerated formation of the fuel-air mixture and the combustion speed, combustion performance deteriorated with increased NOx emissions. An increased EGR rate affected combustion and the NOx concentration. A high EGR rate effectively reduced NOx formation and emission under low-temperature combustion conditions. Also, the good DME combustion characteristics were maintained when the EGR rate was high, unlike for an ultra-low sulfur diesel engine.

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“…The analysis of indicator diagrams is described comprehensively in the literature. On their basis, the influence of fuel used [ 15 , 16 , 17 ], ignition timing [ 18 ], valve opening and closing [ 19 ], or the technical condition [ 12 , 20 , 21 ] on the combustion process are determined. On the basis of pressure in the combustion chamber, the loads on the mechanical components of an engine are determined.…”

Section: Introductionmentioning

confidence: 99%

Modeling the Influence of Engine Dynamics on Its Indicator Diagram

Deuszkiewicz

Dziurdź

Fabiś

2021

Sensors

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This article presents a proposal to describe the pressure changes in the combustion chamber of an engine as a function of the angle of rotation of the crankshaft, taking into account changes in rotational speed resulting from acceleration. The aim of the proposed model is to determine variable piston forces in simulation studies of torsional vibrations of a crankshaft with a vibration damper during the acceleration process. Its essence is the use of a Fourier series as a continuous function to describe pressure changes in one cycle of work. Such a solution is required due to the variable integration step during the simulation. It was proposed to determine the series coefficients on the basis of a Fourier transform of the averaged waveform of a discreet open indicator diagram, calculated for the registration of successive cycles. Recording of the indicative pressure waveforms and shaft angle sensor signals was carried out during tests on the chassis dynamometer. An analysis of the influence of the adopted number of series coefficients on the representation of signal energy was carried out. The model can also take into account the phenomenon of work cycle uniqueness by introducing random changes in the coefficients with magnitudes set on the basis of determined standard deviations for each coefficient of the series. An indispensable supplement to the model is a description of changes in the engine rotational speed, used as a control signal for the PID controller in the simulation of the load performed by the dynamometer. The accuracy of determining the instantaneous rotational speed was analyzed on the basis of signals from the crankshaft position angle sensor and the piston top dead center (TDC) sensor. Limitations resulting from the parameters of digital signal recording were defined.

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Influence of LPG and DME Composition on Spark Ignition Engine Performance

Cited by 11 publications

References 20 publications

Renewable Fuels for Internal Combustion Engines

Renewable Fuels for Internal Combustion Engines

Combustion Performance and Low NOx Emissions of a Dimethyl Ether Compression-Ignition Engine at High Injection Pressure and High Exhaust Gas Recirculation Rate

Modeling the Influence of Engine Dynamics on Its Indicator Diagram

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