Impact of methane addition on the performance of biodiesel fueled diesel engine

Yang, Wenming; An, Hongyu; Li, J.; Duan, Li-shuang

doi:10.1016/j.apenergy.2015.08.103

Cited by 17 publications

(2 citation statements)

References 20 publications

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“…Researchers have also commissioned studies to improve the performance of these engines to reduce pollutant emissions. Several of these studies have focused on the use of alternative fuels to reduce pollutant emissions [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Benefits of exhaust gas energy for preheating biodiesel fuel to enhance engine emissions and performance

Mourad

Noureldenn

2019

Journal of Mechanical and Energy Engineering

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The need for alternative fuel instead of conventional fossil fuels (diesel or gasoline) has recently increased for several reasons, including the expected shortage of petroleum fossil fuels and the production of pollution by transportation. Consequently, researchers are interested in finding new alternative fuels. At present, the number of studies on biodiesel as a compression ignition engine fuel has increased. Current studies are mainly concerned with studying the use of exhaust gas temperature to preheat biodiesel fuel before it enters the combustion chamber. A heat exchanger is designed to increase the temperature of the biodiesel fuel prior to the combustion process. The performance characteristics of diesel engines and the emission of pollutants resulting from this modification were investigated under different operating conditions, including different engine loads and speeds. The results showed clear improvements in engine performance, including improved output power, specific fuel consumption and pollutant emissions. The engine power and specific fuel consumption improvements as a result of preheating reached up to 1.3% and 8.27%, respectively. Pollutant emission also decreased obviously, with carbon monoxide and hydrocarbon emission decreases of 12.95% and 12.85%, respectively. However, the emission of nitrogen oxides increased by 4.39%.

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Section: Introductionmentioning

confidence: 99%

Benefits of exhaust gas energy for preheating biodiesel fuel to enhance engine emissions and performance

Mourad

Noureldenn

2019

Journal of Mechanical and Energy Engineering

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“…The influence of diesel or biodiesel on natural gas combustion can be investigated directly in engine systems or in fundamental experiments which allow for the development and validation of models of the controlling chemical kinetics. Compression-ignition engine studies of natural gas and biodiesel have been carried out in the past. ,− They also generally point to more stable ignition compared to pure natural gas and reduced emission levels compared to diesel or biodiesel. There are very limited fundamental experiments aimed at understanding the chemical kinetic interactions involved in natural gas and biodiesel blend ignition.…”

Section: Introductionmentioning

confidence: 99%

Methane and Methyl Propanoate High-Temperature Kinetics

et al. 2018

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The biodiesel surrogate, methyl propanoate (MP), is more reactive than methane. Mixtures of the two can be used to control combustion initiation in various combustion systems. Reported here is a shock tube study of the influence of chemical interactions resulting from mixing the two fuels on observable combustion properties, such as global chemical time scales and species time histories. Experiments are carried out at pressures of about 4, 7.4, and 10 atm covering a temperature window of 1000 to 1500 K. Using direct laser absorption, CO time histories during MP pyrolysis are obtained. The CO absorbance is further used to determine pyrolysis times by means of which the effect of temperature on MP pyrolysis is probed. Reactivity differences are first examined with the fuel concentration maintained at 3% and then with the oxygen concentration fixed at 10%. The evidence of chemical interactions during ignition is observed through a reduction of methane ignition delay times caused by MP addition. The influence is nonlinear, with the result that ignition delay times of blends of 50% of each fuel are much closer to the ignition delay times of MP, the more reactive fuel. This is understood to result from the rapid generation of radicals during MP oxidation which further react with methane in low-activation energy elementary reactions, such as OH which reacts almost barrier-less. With respect to CO formation during MP pyrolysis, the presence of methane is not observed to significantly influence the pyrolysis time, indicating limited radical withdrawal by methane during the propanoate pyrolysis as it is the case during oxidation when the chemical interactions are accentuated by the exchange of oxygen-mediated radical formation. The measured data are compared with two model predictions, showing reasonable agreement for the ignition data and discrepancies with respect to the pyrolysis data.

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Evaluation of Biodiesel Production, Engine Performance, and Emissions

Gürü

Keskïn

2016

Journal of Elec Materi

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Impact of methane addition on the performance of biodiesel fueled diesel engine

Cited by 17 publications

References 20 publications

Benefits of exhaust gas energy for preheating biodiesel fuel to enhance engine emissions and performance

Benefits of exhaust gas energy for preheating biodiesel fuel to enhance engine emissions and performance

Methane and Methyl Propanoate High-Temperature Kinetics

Evaluation of Biodiesel Production, Engine Performance, and Emissions

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