An Experimental Study for Performance and Emissions of a Small Four-Stroke Si Engine for Modern Motorcycle

Hamada, Khalaf I.; Rahman, M. M.

doi:10.15282/ijame.10.2014.3.0154

Cited by 25 publications

(23 citation statements)

References 28 publications

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“…Syngas has a low-density energy and low calorific value compared to diesel [2,3]. Recently, researchers have made many activities to look for alternative fuels due to the depletion of petroleum fuel and the instability of its prices [4][5][6][7]. Syngas is considered to be a renewable source of energy for the future because of the availability of the raw material, biomass, which is used in the gasification process in different amounts almost all over the world.…”

Section: Introductionmentioning

confidence: 99%

Performance Study of Imitated Syngas in a Dual-Fuel Compression Ignition Diesel Engine

Mahgoub¹,

Sulaiman²,

Karim³

2015

Int. J. Automot. Mech. Eng.

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Operating engines fueled by syngas and diesel is an available renewable option to avert concerns related to the supply of petroleum and the environment. But the use of syngas in a compression ignition (CI) diesel engine leads to a reduction in the power output because of its lower heating value compared with the 100% diesel mode. Furthermore, it is not easy to evaluate the performance of real syngas due to the varying gas content when inducted into a CI diesel engine. In this study, a single-cylinder, two-stroke, naturally aspirated CI diesel engine was operated with imitated syngas as the primary fuel in dual-fuel mode. The objective of this study is to investigate the effect of syngas composition on the performance of a dual-fuel engine running at different engine speeds (1200, 2000, 3000 rpm). The impact of engine speed on the performance of syngas in the dual-fuel CI diesel engine was examined at various diesel replacement ratios (DR%). Composition C showed the best results for engine performance compared to other compositions.

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Section: Introductionmentioning

confidence: 99%

Performance Study of Imitated Syngas in a Dual-Fuel Compression Ignition Diesel Engine

Mahgoub¹,

Sulaiman²,

Karim³

2015

Int. J. Automot. Mech. Eng.

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“…CO2 dissociation, combustion temperature, air to fuel ratio and other parameters could have contrary effects on final CO fraction. We can find more information about the subject of this study in previous papers [43], [44], [45], [46], [47]. Table 3.…”

Section: Validationmentioning

confidence: 99%

Composition and Stoichiometry Effects of Biogas as Fuel in Spark Ignition Engine

Mokrane¹,

Energy²,

Adouane³

et al. 2018

INT. J. AUTOMOT. MECH. ENG.

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The most important advantage of biogas is that one can retrofit easily the conventional combustion engines to be used for the new fuel but remain the problem of pollutant emission. In this paper, the effect of the biogas composition on the emissions of CO and NOx in an SI engine is investigated numerically. Three compositions were studied (CH4:40 %, CO2:60 %), (CH4:50 %, CO2:50 %), (CH4:60 %, CO2:40 %), at equivalence ratio (ϕ) from lean to rich. The non-adiabatic partially premixed combustion model with probability density function (PDF) method and Zimont model of the turbulent flame speed are used. It was found that increasing CO2 in the biogas lowers NOx emissions significantly, whereas, CO was found to be very low, and appears only at high CH4 concentration. A biogas with (CH4:60 %, CO2:40 %), burning at about (ϕ = 0.9), i.e. slightly lean mixture, and advanced spark timing (between 10 to 20°.) seems to be a very a realistic combination in terms of biogas composition, stoichiometry and spark timing. It is recommended that, to accomplish some upgrading, in case of biogases with low CH4 percentage, to get it up to 60 %.

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“…Using HCCI in internal combustion engines meets economic demands, conserves energy, and is environmental-friendly. The use of HCCI engines offers the advantages of high thermal efficiency and low cyclic variation at low loads and low equivalence ratios compared to Spark Ignition (SI) engines [32]. Exhaust emissions like carcinogenic NOx are reduced by 80% and smoke by 50%, all while achieving relatively high thermal efficiency [33].…”

Section: Homogeneous Charge Compression Ignitionmentioning

confidence: 99%

“…Vibration and noise are results of the fast burning speeds in combustion HCCI engines since the combustion engines of gasoline-fuelled HCCI are not controlled by sparks but with auto-ignition [9]. The overall ensemble of HCCI engines can include different piston designs; these various piston designs contribute to the overall improvement of engine performance [10][11][12][13]. Designs are created using numerical simulation to best predict characteristics and outcomes [14].…”

Section: Introductionmentioning

confidence: 99%

The use of different types of piston in an HCCI engine: A review

Aljaberi¹,

Hairuddin²,

Aziz³

2017

Int. J. Automot. Mech. Eng.

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Homogenous charge compression ignition (HCCI) combines the advantages of spark ignition (SI) and compression ignition (CI) engines to improve fuel consumption and emission levels. HCCI engines have the advantage of relatively higher engine efficiency than SI engines while maintaining lower emissions levels than CI engines. Combustion in HCCI engines occurs spontaneously at any location once the fuel-air mixture reaches its chemical activation energy. Pistons have a major effect on controlling the combustion inside the combustion chamber of an HCCI engine. Many researchers have studied various designs for pistons to improve HCCI engines. The aim of this study is to explore these different types of pistons and their designs in terms of improving the performance of HCCI engines fuelled with gasoline. The most common pistons used in HCCI are twostroke pistons, bowl types, specialised pistons, and dome-shaped pistons; each offers distinct advantages and disadvantages. Software simulation is the latest way of determining the best piston to be used for HCCI engines, as it is more cost effective and less time consuming than experiments. Overall, bowl type pistons offer reduced fuel consumption and a higher load capacity when used in an HCCI engine.

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An Experimental Study for Performance and Emissions of a Small Four-Stroke Si Engine for Modern Motorcycle

Cited by 25 publications

References 28 publications

Performance Study of Imitated Syngas in a Dual-Fuel Compression Ignition Diesel Engine

Performance Study of Imitated Syngas in a Dual-Fuel Compression Ignition Diesel Engine

Composition and Stoichiometry Effects of Biogas as Fuel in Spark Ignition Engine

The use of different types of piston in an HCCI engine: A review

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