Effect of gasoline additive on combustion and emission characteristics of an n-butanol Partially Premixed Compression Ignition engine under different parameters

Liu, An; Zhang, Chunhua; Ji, Peng; Li, Yangyang

doi:10.1038/s41598-021-81490-3

Cited by 6 publications

(2 citation statements)

References 34 publications

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“…Also, lower specific fuel consumption is another attractive benefit of the HCCI engine. Through, visualizing the combustion process of conventional SI engines and HCCI engines, it was found that flame propagation was easily seen in SI engine combustion whereas not able to see in HCCI engines (2) . Thus, proving that better volumetric combustion has occurred during HCCI combustion.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of HCCI Combustion Fuelled with Gasoline + Methyl Tert-Butyl Ether Blend

Dadapeer¹,

Prakash²

2022

IJST

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Background: Homogeneously charged compression ignition (HCCI) engines are generally popular for low production of NOx and Soot formation, also consuming lower fuel as compared with conventional gasoline and diesel engine. Objectives: In this study, the compression ignition engine (CI) was simulated in HCCI mode fuelled with Gasoline and Methyl tert-butyl ether (MTBE) blends, and the analysis was carried out in similar operating conditions as experimentation carried out. Methods: The chamber pressure was maintained at 2 bar, and the air-fuel ratio was maintained at2.75. The optimal blend for MTBE was fixed as 15 vol % (MTBE 15), and the measured properties of the blends were used in the simulation. ICE simulation module in ANSYS WORKBENCH was used for this current simulation. Both cold flow and combustion simulations were carried out and the results indicate velocity indie the cylinder, cylinder pressure, and temperature distributions for two cases such as gasoline and gasoline with MTBE15. Findings: The average velocity was found high with the MTBE blend, whereas in-cylinder pressure was found low with MTBE blend than with gasoline. The temperature inside the cylinder pressure was found higher with gasoline than MTBE blend. The deviation between the experimentation and simulation was found low. Novelty: The simulation provides a better understanding of the combustion phenomena when gasoline is mixed with MTBE and utilized in a diesel engine at HCCI mode.

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Section: Introductionmentioning

confidence: 99%

Numerical Simulation of HCCI Combustion Fuelled with Gasoline + Methyl Tert-Butyl Ether Blend

Dadapeer¹,

Prakash²

2022

IJST

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show abstract

“…These two pollutants could be reduced by lowering the combustion temperature and raising the premixed combustion ratio as much as possible 1 . As a consequence, innovative combustion modes such as homogeneous charge compression ignition (HCCI) 2 , premixed charge compression ignition (PCCI) 3 , 4 , partially premixed combustion (PPC) 5 , and RCCI 6 have been proposed. The RCCI combustion mode is characterized by the presence of two distinct fuel supply systems.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on n-butanol/methyl oleate dual fuel RCCI combustion in a single cylinder engine at high-load condition

Wang

Zhang

Liu

et al. 2021

Sci Rep

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Reactivity controlled compression ignition (RCCI) engines have a high thermal efficiency as well as low emissions of soot and nitrogen oxides (NOx). However, there is a conflict between combustion stability and harmful emissions at high engine load. Therefore, this work presented a novel approach for regulating n-butanol/methyl oleate dual fuel RCCI at high engine load in attaining lower pollutant emissions while maintaining stable combustion and avoiding excessive in-cylinder pressure. The tests were conducted on a single cylinder engine under rated speed and 90% full load. In this study, n-butanol was selected as a low-reactivity fuel for port injection, and n-butanol/methyl oleate blended fuel was used for in-cylinder direct injection. Combustion and emission characteristics of the engine were first investigated with varied ratios of n-butanol port injection (PFI) and direct injection (DI). Results showed that as the ratio of n-butanol PFI and DI rose, the peak cylinder pressure and heat release rate increased, while NOx and soot emissions reduced, and carbon monoxide (CO) and hydrocarbon (HC) emissions increased under most test conditions. When RNBPI = 40% and RNBDI = 20%, the soot and NOx emissions of the engine were near the lowest values of all test conditions, yet the peak in-cylinder pressure and fuel consumption could not increase significantly. Therefore, the possibility of optimizing the combustion process and lowering emissions by adjusting the pilot injection strategy was investigated utilizing these fuel injection ratios. The results revealed that with an appropriate pilot injection ratio and interval, the peak in-cylinder pressure and NOx emission were definitely reduced, while soot, CO, and HC emissions did not significantly increase.

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A comprehensive review on combustion, performance and emission aspects of higher alcohols and its additive effect on the diesel engine

Zhang

Gao

Zhang

et al. 2023

Fuel

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Effect of gasoline additive on combustion and emission characteristics of an n-butanol Partially Premixed Compression Ignition engine under different parameters

Cited by 6 publications

References 34 publications

Numerical Simulation of HCCI Combustion Fuelled with Gasoline + Methyl Tert-Butyl Ether Blend

Numerical Simulation of HCCI Combustion Fuelled with Gasoline + Methyl Tert-Butyl Ether Blend

Experimental investigation on n-butanol/methyl oleate dual fuel RCCI combustion in a single cylinder engine at high-load condition

A comprehensive review on combustion, performance and emission aspects of higher alcohols and its additive effect on the diesel engine

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