Effect of compression ratio on the performance and combustion of a biogas fuelled spark ignition engine

Porpatham, E.; Ramesh, A.; Nagalingam, B.

doi:10.1016/j.fuel.2011.10.059

Cited by 147 publications

(57 citation statements)

References 18 publications

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“…Figure 6 shows that the major part of NOx is formed in the area around the spark plug and it is the result of the high-temperature zone caused by synchronization of ignition by the spark. Predicted NOx have similar trends from other experimental research [38]. Crank Angle=862.50(deg)…”

Section: Nox Emissionssupporting

confidence: 77%

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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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Section: Nox Emissionssupporting

confidence: 77%

“…The self-ignition temperature of biogas is high and hence it resists knocking which is desirable in SI engines. Thus, biogas has a high anti-knock index and hence biogas engine can use high compression ratios, which can lead to improvements in thermal efficiency [3].…”

Section: Introductionmentioning

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.

View full text Add to dashboard Cite

show abstract

“…The compression ration in this research was increased step by step from 8.5:1 until yield condition in which the engine was easy to start running and run stable. The final compression ration was 9:1 which reached minimum compression ratio for the biogas fueled spark ignition engine [15].…”

Section: Res Ult and Discussionmentioning

confidence: 94%

Method on Conversion of Gasoline to Biogas Fueled Single Cylinder of Four Stroke Engine of Electric Generator

Nindhia¹,

Surata²,

Atmika³

et al. 2013

IJESD

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Abstract-The Gasoline fueled single cylinder generator engine are well established and available in the market with reasonable price, in the other hand the biogas fueled engine for electric generator is not well established yet in the market. The biogas energy is easy to produce therefore the price for the biogas is very much cheaper than the gasoline. The purpose of this research is to find conversion method from gasoline to biogas fuelled of the single cylinder four stroke engine of electric generator. For this purpose the biogas should be upgraded to the level of zero impurities of hydrogen sulfide H 2 S, water (H 2 O) and reducing up to zero level of CO 2 impurities. The carburetor of the gasoline engine was replaced and only component of the mixer of the fuel and air were used. The intake of the biogas fueled should be completed with valve that can be opened automatically by vacuum of the suction stroke of the engine and compression ration of the engine should be increased until reach 9:1 of compression ratio. With this conversion method, the engine of the electric generator used for this research is run well and possible to reach maximum capacity that can be achieved by using gasoline previously.

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“…There is an even greater potential for biogas if it can be utilised as a transportation fuel. The use of biogas in conventional SI and CI engines has been a topic of extensive research over the past few decades [1,4,[47][48][49][50][51]. Table 3 illustrates the difference in composition of biogas used by various researchers.…”

Section: Applications Of Biogasmentioning

confidence: 99%

A review on the purification and use of biogas in compression ignition engines

Feroskhan¹,

Ismail²

2017

Int. J. Automot. Mech. Eng.

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Biogas is commonly produced during the decay of organic matter. It is a mixture of methane and some non-combustible gases such as CO2 and H2S. Its viability as a renewable alternative fuel for internal combustion engines can be enhanced by methane enrichment, i.e. removal of the non-combustible constituents. One of the common techniques for using biogas in a compression ignition (CI) engine is to mix it with air in the intake manifold, induct, and compress this mixture and ignite it by injecting a small quantity of diesel or bio-diesel, which is termed as the pilot fuel. This is known as the dual fuel mode. The pilot fuel is injected close to the end of the compression stroke as in a conventional CI engine and the injected fuel quantity depends on the operating condition. An alternative approach is the Homogeneous Charged Compression Ignition (HCCI) mode. Here, a homogeneous mixture of biogas and air is inducted and compressed by the piston until it auto-ignites. While this concept combines the benefits of spark ignition (SI) and CI engines, the onset of combustion cannot be controlled directly. A detailed review of recent research pertaining to biogas purification techniques and operation of CI engines with biogas in dual fuel and HCCI modes is presented in this paper. The effects of various operating parameters on engine performance and emissions, and comparison with conventional diesel fuelled CI engines are discussed. Biogas improves combustion efficiency, NOx, and smoke emissions. However, it reduces brake thermal efficiency, volumetric efficiency, and increases HC and CO emissions. Biogas fuelling of CI engines is recommended for achieving high diesel substitution, especially under high torque operation.

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Effect of compression ratio on the performance and combustion of a biogas fuelled spark ignition engine

Cited by 147 publications

References 18 publications

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

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

Method on Conversion of Gasoline to Biogas Fueled Single Cylinder of Four Stroke Engine of Electric Generator

A review on the purification and use of biogas in compression ignition engines

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