Investigation on the effect of concentration of methane in biogas when used as a fuel for a spark ignition engine

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

doi:10.1016/j.fuel.2007.08.014

Cited by 228 publications

(127 citation statements)

References 8 publications

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“…In addition, this is due mainly to temperature increase, see Figure 7 (b). This also is in line qualitatively with the experimental results of Porpatham et al [9]. The variation of NOx emissions with carbon dioxide fraction in the biogas is presented in Figure 5 (b).…”

Section: Nox Emissionssupporting

confidence: 92%

“…In this study, CO emission could be low for lean mixtures and not sensitive to the CO2 fraction of biogas. From Figure 3 (a), it is clear that when increasing CH4 concentration in the biogas; this decreases CO emission significantly in the rich zone, which is in line with the results obtained by Porpatham et al [9]. In the rich zone, the level of CO increases rapidly for each biogas.…”

Section: Co Emissionssupporting

confidence: 89%

“…In Figure 3 (b) the variation of CO emissions with the CO2 fraction in biogas shows clearly that when operating on lean and stoichiometric mixtures, the CO emissions were low and seemed to change little with the variation of the CO2 fraction in the biogas mixture [9]. Under rich mixture conditions, the carbon monoxide increased markedly when the fraction of carbon dioxide was decreased below 40 %.…”

Section: Co Emissionsmentioning

confidence: 96%

“…The optimization of the combustion of biogas in an internal combustion engine and the minimization of different emissions has been the subject of several studies. Porpatham [9] examined the effect of the concentration of methane in biogas used as a fuel in an SI engine. They observed that the increase in methane concentration in biogas enhances the performance significantly and reduces the emissions of the hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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: 92%

Section: Co Emissionssupporting

confidence: 89%

Section: Co Emissionsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

“…This has been confirmed by the findings of a number of research works indicating similar removal efficiencies using both oxygen and air, while also recording slightly lowered methane concentration in the biogas using air (Díaz et al, 2011a;Guerrero et al, 2015). However, the diluted biogas can still be used in combustion engines (Porpatham et al, 2008). …”

Section: Air/oxygen Dosagesupporting

confidence: 66%

A review on prospects and challenges of biological H2S removal from biogas with focus on biotrickling filtration and microaerobic desulfurization

et al. 2017

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Optimization of engine operating variables on performance and emissions characteristics of biogas fuelled CI engine by the design of experiments: Taguchi approach

Mahla

Goyal

et al. 2021

Env Prog and Sustain Energy

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Biogas obtained from renewable resources is a viable solution for solving energy scarcity and environmental degradation. A single-cylinder 4-stroke natural aspirated variable compression ratio research engine was fuelled with biogas as primary and diesel as a pilot injection in this work. Experiments were designed based on Taguchi L 9 OA (orthogonal array) choosing biogas flow rate, compression ratio, and engine load as input factors, while brake thermal efficiency (BTE), BSEC, CO, HC, NOx, and smoke were targeted responses. The effects level of factors on responses was analysed by using MINITAB software. The higher value of raw data and S/N ratios for BTE was observed with low biogas flow rate, higher compression ratio, and full engine load. On the other hand, lower raw data and high S/N ratio analysis for emissions characteristics (CO, HC, NOx, and smoke) were achieved in the order of rank, that is, engine load > biogas flow rate > compression ratio. With the analysis of results, optimum levels of various factors were evaluated. These results showed that the Taguchi method design was an effective tool for optimizing the elements in terms of combustion performance and emissions characteristics.

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Investigation on the effect of concentration of methane in biogas when used as a fuel for a spark ignition engine

Cited by 228 publications

References 8 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

A review on prospects and challenges of biological H2S removal from biogas with focus on biotrickling filtration and microaerobic desulfurization

Optimization of engine operating variables on performance and emissions characteristics of biogas fuelled CI engine by the design of experiments: Taguchi approach

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