Experimental investigation on performance and combustion characteristics of spark-ignition dual-fuel engine fueled with methanol/natural gas

Chen, Zhanming; Wang, Long; Yuan, Xianan; Duan, Qimeng; Yang, Bo; Zeng, Ke

doi:10.1016/j.applthermaleng.2018.12.168

Cited by 55 publications

(14 citation statements)

References 44 publications

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“…Although methanol contains higher O atom, it has lower CO2 emission than E10 fuel due to it has lower C atom compared ethanol. Balki and Sayın [27] and Chen et al [35] have also observed similar results due to same reasons. One the other hand, some although researchers have claimed that they should cause lower CO2 emission thanks to both ethanol and methanol have lower C atoms, they revealed that C atoms in cylinder at unit stroke will be too much since the amount of fuel taken into the cylinder to obtain the same engine power will be higher for alcohols [8,52].…”

Section: 3exhaust Emissionssupporting

confidence: 60%

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A Comparative Study of Ethanol and Methanol Addition Effects on Engine Performance, Combustion and Emissions in the SI Engine

Örs¹,

Sayin²,

Ciniviz³

2020

International Journal of Automotive Science and Technology

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In this study, the availability of methanol instead of ethanol was investigated in terms of performance, emission and combustion characteristics. The experiments were conducted in a single cylinder, four-stroke SI engine for different engine speeds at full engine load. Test fuels were prepared by 10% ethanol and methanol addition into gasoline. According to the experimental results, while methanol addition increased bsfc values by 10.3% compared to ethanol addition, it caused a reduction to the bte values by 6.12%. The methanol addition fuel has shown similar combustion characteristics with ethanol addition fuel. Although the methanol addition decreased CO2, CO, HC and NOx emissions by 6.48%, 26.6%, 4.75% and 9.16% respectively compared to ethanol addition, it has higher oxygen emission values by 15.3% due to its higher oxygen content than ethanol. These results show that methanol can also use as an additive for gasoline like ethanol.

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Section: 3exhaust Emissionssupporting

confidence: 60%

“…For example, if CA50 is -10 CA, it means that 50% of fuel burned at -10 CA. Although CA90 is accepted as the end of combustion (EoC) in many studies [33][34][35][36][37][38], some researchers have presented actual values of EoC [39][40][41]. The detailed values for investigated all combustion characteristics is given in Table 4.…”

Section: 1combustion Analyzesmentioning

confidence: 99%

A Comparative Study of Ethanol and Methanol Addition Effects on Engine Performance, Combustion and Emissions in the SI Engine

Örs¹,

Sayin²,

Ciniviz³

2020

International Journal of Automotive Science and Technology

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“…The bioethanol-air, biogas-air and gasoline A-air mixtures were analysed separately through simulation of Eq. (13)(14)(15) on GASEQ software to evaluate the pollution indicators of each mixture. Table 7-9 show the reactants and products species of each simulation, and the emission factors of the products related to the global warming and human toxicity indicators that were determined through Eq.…”

Section: Simulation On Gaseq and Pollution Indicatorsmentioning

confidence: 99%

“…Niu et al (2016) studied the use of gasoline enriched with hydrogen in the Otto cycle, and concluded that flame developing duration and combustion duration were reduced with the addition of hydrogen in gasoline. Chen et al (2019) evaluated the Otto cycle fuelled with methanol and natural gas in dual-fuel mode. According to the results, the methanol induced to a faster burning rate, improved the brake thermal efficiency, and reduced the equivalent brake specific fuel consumption.…”

Section: Introductionmentioning

confidence: 99%

Energy-ecological Efficiency of Dual-Fuel Serie Plug-in Hybrid Electric Vehicle Considering WTW Emissions

Soares

Moraes

Hernández-Callejo

et al. 2021

Preprint

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This paper discussed the possibility of replacing the series plug-in hybrid electric vehicle using the single-fuel spark-ignition engine (SFSIE) fuelled with gasoline A and Brazilian gasoline by the series plug-in hybrid electric vehicle fuelled with 50% bioethanol and 50% biogas in dual-fuel mode. The simulation of bioethanol, biogas and gasoline A combustion were carried out through GASEQ software to calculate the energy-ecological efficiency of the SFSIE and the dual-fuel spark ignition engine (DFSIE). The well-to-pump (WTP) emissions of the sugarcane bioethanol and biogas production pathway were evaluated through GREET software. The tank-to-wheel (TTW) emissions were determined to each series PHEV operating modes. Thus, the well-to-wheel emissions were calculated through the sum of the WTP, TTW and electricity mix emissions. The results showed that the energy-ecological efficiency for the DFSIE was 10.7% and 24.1% higher than that found for SFSIE fuelled with gasoline and Brazilian gasoline, respectively. The losses during the biogas production aggravate linearly the WTP emissions, and consequently the WTW emissions of the series PHEV. Besides that, the DFSIE presented 15.5% and 12.8 less TTW emissions than the SFSIE fuelled with gasoline A and Brazilian gasoline, respectively. Comparing to the emission standards, the DFSIE presented TTW emissions 30.5% higher than the EU emission standard by 2021. Although the DFSIE does not meet none of the emission standards, this engine mode can be an alternative to at least reduce the tailpipe emissions.

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“…Since the mass inside the cylinder does not change, the first law of thermodynamics can be applied: represents the rate of heat release due to fuel burning, and the term Q w d represents the rate of convective heat transfer through the cylinder walls, which can be calculated by Newton cooling law [6,22].…”

Section: Gas Analysis Inside the Cylindermentioning

confidence: 99%

Predictive thermodynamic model of the performance of a stationary spark-ignition engine running on natural gas

Gutiérrez

Monteiro

Vaz

2020

J Braz. Soc. Mech. Sci. Eng.

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In order to reduce the emissions of polluting gases and contribute to the efficient use of energy, natural gas has gained relevance due to its cleaner burning when compared to gasoline and diesel oil. In this work, a zero-dimensional thermodynamic model was developed to predict the performance, for the entire operating conditions, of a 11.7-L, six-cylinder, turbocharged spark-ignition engine used as genset and running on natural gas. This zero-dimensional model covers the closed period of the engine operating cycle. Firstly, this engine was tested in seven (7) different operating conditions to obtain the mass fraction burned and the pressure curves inside the cylinder. The combustion process was modeled using the simple Wiebe function, whose parameters were obtained from the seven (7) curves of the mass fraction burned through the Levenberg-Marquardt optimization method. Correlations were developed to estimate the Wiebe function parameters, as a function of pressure and temperature in the intake manifold, cylinder wall temperature, power and fuel consumption, for the entire operating range. The combustion efficiencies were estimated from the seven (7) experimental pressure curves with the aforementioned optimization technique. Results showed that the differences between the Wiebe function parameters obtained with the developed correlation, for the whole engine operating range, were less than 3% when compared with the Wiebe function parameters estimated for each of the seven (7) operating conditions tested. Results also showed that the thermodynamic model can be used to simulate the engine's performance, leading to errors less than 5% when compared with the measured maximum pressure and indicated mean pressure. In addition, it was found that the delay and duration of the combustion are smaller than those usually found in spark-ignition engines and that the energy release is deficient, resulting in high specific fuel consumption. This issue can be addressed by installing an equivalence ratio control system, especially in loads above 50%, thus ensuring greater control of emissions and increasing energy efficiency.

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Experimental investigation on performance and combustion characteristics of spark-ignition dual-fuel engine fueled with methanol/natural gas

Cited by 55 publications

References 44 publications

A Comparative Study of Ethanol and Methanol Addition Effects on Engine Performance, Combustion and Emissions in the SI Engine

A Comparative Study of Ethanol and Methanol Addition Effects on Engine Performance, Combustion and Emissions in the SI Engine

Energy-ecological Efficiency of Dual-Fuel Serie Plug-in Hybrid Electric Vehicle Considering WTW Emissions

Predictive thermodynamic model of the performance of a stationary spark-ignition engine running on natural gas

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