Experimental study of lean spark ignition combustion using gasoline, ethanol, natural gas, and syngas

Ran, Zhongnan; Hariharan, Deivanayagam; Lawler, Benjamin; Mamalis, Sotirios

doi:10.1016/j.fuel.2018.08.054

Cited by 70 publications

(38 citation statements)

References 21 publications

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“…The combustion has started before while using 5% or 10% MBF definition. So, the ignition delay time of CNG is less than gasoline in the stoichiometric mixture due to higher laminar flame speed at low temperature and pressure conditions [5,6]. By increasing the speed, the ignition delay has increased as expected, but the general tendency is similar to spark advance ( Figure 6 and Figure 9).…”

Section: Combustion Analysismentioning

confidence: 59%

“…For both fuels, COV was calculated at each experiment point. For COV of indicated mean effective pressure the value of 5%, which is generally accepted in literature, was selected as the limit value [5]. As can be seen in Figure 4, gasoline fuel was not suitable to operate with ultra-lean mixture at a BMEP of 3 bar and 1500 rpm.…”

Section: Cyclic Variationsmentioning

confidence: 99%

“…The high pressure and temperature in real engine operating conditions help to reduce this resistance for gasoline [27]. In contrast to gasoline, the laminar flame speed of CNG decreases excessively with increasing temperature and pressure [5]. As a result, increased turbulence intensity leads to rapid progression of CNG during ignition delay and early flame development.…”

Section: Combustion Analysismentioning

confidence: 99%

“…If the compression ratio (ε) is 15 or 16 without knocking, CNG can be 10% more efficient than gasoline [4]. Although different results have been declared in the literature, CNG has a higher efficiency, especially in lean mixture [5]. Break-specific fuel consumption (g/kWh) for CNG is lower than gasoline by 10-20% due to different lower heating values of fuels [2,6].…”

Section: Introductionmentioning

confidence: 99%

“…The value of the coefficient of variation for indicated mean effective pressure (COV_IMEP), which is used most extensively in literature, should not be higher than 5% to stable operating conditions [6,17,18]. It is determined that with CNG, the first phase of combustion (0-10%) is faster than gasoline, but due to increasing temperature, the combustion duration (10-90%) is longer than gasoline [5].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Burn Duration and NO Emission in Lean Mixture with CNG and Gasoline

et al. 2019

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The results of experiments performed by gasoline and natural gas fuels in a single cylinder research engine were evaluated in this study. The main objective of this study is to compare exhaust gas emissions, efficiency, and burn durations for both fuels in stoichiometric and lean mixture. At the same time, cycle to cycle variation in these operating conditions should not exceed an acceptable value. In the ultra-lean mixture, gasoline fuel exceeded this determined limit before Compressed Natural Gas (CNG). Therefore, the reduction in NO was restricted by cyclic variations. In combustion analysis, although the burn duration of the gasoline in stoichiometric conditions was shorter than CNG, this situation reversed in favor of CNG in the ultra-lean mixtures. Contrary to some studies in the literature, the spark advance and ignition delay for CNG were the same or shorter than gasoline in this study. The primary reasons for this change are the high compression ratio and the different combustion chamber geometry. The increase in turbulence intensity has different effects on CNG and gasoline. As a result, it has been observed that NO emissions can meet the limits without a loss of efficiency for this engine operated with CNG under the ultra-lean mixture.

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Section: Combustion Analysismentioning

confidence: 59%

Section: Cyclic Variationsmentioning

confidence: 99%

Section: Combustion Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of Burn Duration and NO Emission in Lean Mixture with CNG and Gasoline

et al. 2019

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Experimental based comparative exergy analysis of a spark‐ignition Honda GX270 Genset engine fueled with LPG and syngas

Ganesan

Sahoo

Porpatham

et al. 2022

Energy Science & Engineering

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The present study investigates three different fuels such as gasoline, liquefied petroleum gas (LPG), and syngas in spark-ignition Honda GX270 Genset engine under wide-open throttle position on its performance, combustion characteristic as well as availability analysis. The results showed that when the engine operated with gasoline fuel, the brake thermal efficiency was higher than that of LPG and syngas by 6.2% and 7.4%, respectively, throughout the engine load condition. Brake-specific fuel consumption of the engine with syngas (660 g/kW h) and LPG fuel (812 g/kW h) was higher than that of the gasoline fuel (510 g/kW h) at the 4.5 kW of engine load. The engine emission results showed syngas operation caused a significant reduction in NOx by 58.4%, CO by 16.5%, HC by 23.2% compared to gasoline fuel at peak load conditions. On the other hand, exergy analysis concludes the exergy efficiency for all the test fuels increases with an increase in engine load due to a high rise in shaft output. At a 4.5 kW power output, the exergy efficiency of the engine was improved to 46.45% from 45.62% and 29.73% with syngas, gasoline, and

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Carburetion and Port Fuel Injection Metering Strategies for Natural Gas Spark-Ignited Engine

Alexander

Porpatham

2020

Lecture Notes in Mechanical Engineering

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Experimental study of lean spark ignition combustion using gasoline, ethanol, natural gas, and syngas

Cited by 70 publications

References 21 publications

Investigation of Burn Duration and NO Emission in Lean Mixture with CNG and Gasoline

Investigation of Burn Duration and NO Emission in Lean Mixture with CNG and Gasoline

Experimental based comparative exergy analysis of a spark‐ignition Honda GX270 Genset engine fueled with LPG and syngas

Carburetion and Port Fuel Injection Metering Strategies for Natural Gas Spark-Ignited Engine

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