Effect two grades of octane numbers on the performance, exhaust and acoustic emissions of spark ignition engine

Alahmer, Ali; Aladayleh, Wail

doi:10.1016/j.fuel.2016.04.025

Cited by 30 publications

(7 citation statements)

References 23 publications

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“…The experiment is conducted at a variable speed of 1000, 2000, 3000 rpm and engine load of 10%, 20%, and 30%. The different speed and engine load were selected based on previous research that in high rpm (4000 rpm) and high engine load (40%) will increase exhaust gas temperature, and it can decrease the effectiveness of CATCO in converting exhaust gas emission (Silva et al, 2006 andAlahmer andAladayleh, 2016). Therefore, this research was performed in low to medium engine load.…”

Section: Exhaust Gas Temperature Analysismentioning

confidence: 99%

“…Figure 1. Location of CATCO in a passenger car (Kaspar et al, 2003 andPardiwala et al, 2011) Nowadays, a higher level of specific power output, increase reliability and increase its efficiency are required (Alahmer and Aladayleh, 2016;Pranoto, 2015). Improving engine performance and its system regarding minimizing fuel consumption of available fuels is a challenging research area in automobile industries (Cerri et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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PERFORMANCE AND EXHAUST GAS TEMPERATURE INVESTIGATION OF CERAMIC, METALLIC AND FeCrAl CATALYTIC CONVERTER IN GASOLINE ENGINE

Pranoto

Feriyanto

Zakaria

2019

Sinergi

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Catalytic converter (CATCO) and its effect on engine performance and exhaust gas temperature became an exciting field in automotive research. In this study purposed to compare existing CATCO which is ceramic and metallic with FeCrAl CATCO that treated with a combination of ultrasonic bath and electroplating technique in 30 minutes holding time (UB+EL 30 min). This study proposed to select an appropriate CATCO that used in a gasoline engine to increase the performance and to reduce the exhaust gas temperature as well as its potential to reduce the exhaust gas emission. Mitsubishi 4G93 conducted this analysis with 1.8 L and 10.5 compression ratio with a variable speed of 100, 2000 and 3000 rpm and different engine load of 10, 20 and 30%. The result shows that the FeCrAl CATCO was more useful to reduce fuel consumption up to 66.42% and increase torque up to 15.79% as well as reduce exhaust gas temperature up to 30.11% as compared to ceramic and metallic CATCO. It can be concluded that FeCrAl CATCO coated by UB+EL 30 min was recommended to increase engine performance and to reduce exhaust gas emission.

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Section: Exhaust Gas Temperature Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

PERFORMANCE AND EXHAUST GAS TEMPERATURE INVESTIGATION OF CERAMIC, METALLIC AND FeCrAl CATALYTIC CONVERTER IN GASOLINE ENGINE

Pranoto

Feriyanto

Zakaria

2019

Sinergi

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“…Both fuels showed similar trends for the emitted CO and NOX concentrations in the exhaust gases. Alahmer [11] presented a comparative analysis of performance and exhaust emissions in the SI engine powered by gasoline fuels of two different octane numbers (RON90 and RON95). The results showed that the resulted brake power and (ƞthb) for RON90 was higher than RON95 as well as for (bsfc).…”

Section: Introductionmentioning

confidence: 99%

Effect of Octane Number on Performance and Exhaust Emissions of an SI Engine

Athafah

Salih²

2020

ETJ

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Spark ignition engines are very popular engines that they are running millions of vehicles all over the world. This engine emits many harmful pollutants, such as CO, UHC, and NOX. In this paper, the impact of gasoline octane number on the engine performance and exhaust emissions was studied. In the tests, four-cylinder, four-stroke engine, and two variable octane numbers (RON83 and 94.5) were used. The engine was run at different engine speeds and loads. The results from the experimental study indicated that the brake specific fuel consumption (bsfc) of RON94.5 was higher than RON83 by 13.93%, while the brake thermal efficiency (ƞbth) was higher for RON83 compared to RON94.5 by 12.31%. The emitted emissions for the tested fuels were high when RON83 was used compared to RON94.5 by 65.52%, 49.11%, and 57.33% for CO, UHC, and NOX, respectively.

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“…The experiment done also shows that the use of alcoholic fuels like n-butanol has indeed improved the engine performance at higher compression ratios and also suggested that a proper emission control systems can be designed for higher compression ratios to regulate the percentages of unburnt percentages HC and NO in check. Alahmer et al (2015) [2] found in his research on Fuels for SI engines that using gasoline with octane grades higher than the requirement will decrease the engine performance. Volumetric efficiency of octane 95 is more 5% than octane 90 due to higher latent heat.…”

Section: Introductionmentioning

confidence: 99%

Performance Characteristics of a Spark Ignited Variable Compression Ratio Engine at Erratic Loads

Banerjee¹

2018

IJRASET

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Never ending demand for efficient and less polluting engines have always inspired newer technologies. Extensive study has been done on variable compression ratio, a promising in-cylinder technology, in the recent past. The present work is an experimental investigation to examine the variation of different parameters such as brake thermal efficiency, exhaust gas temperature and emissions with respect to change in compression ratio in a single-cylinder carbureted SI engine at different loads with two different fuels. Experiments were conducted at three different compression ratios (CR = 7.6:1, 7.8:1 and 8:1). The fuels used in this study are pure gasoline. The results showed that brake thermal efficiency increases with CR at all loads. Further, the experimental results showed the scope of improving the part-load efficiency of SI engine by adopting the concept of variable compression ratio (VCR) technology, especially when fuels with better anti-knock characteristics are used. The uncertainty analysis of the experiments based on the specifications of the equipment used is also tabulated.

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Effect two grades of octane numbers on the performance, exhaust and acoustic emissions of spark ignition engine

Cited by 30 publications

References 23 publications

PERFORMANCE AND EXHAUST GAS TEMPERATURE INVESTIGATION OF CERAMIC, METALLIC AND FeCrAl CATALYTIC CONVERTER IN GASOLINE ENGINE

PERFORMANCE AND EXHAUST GAS TEMPERATURE INVESTIGATION OF CERAMIC, METALLIC AND FeCrAl CATALYTIC CONVERTER IN GASOLINE ENGINE

Effect of Octane Number on Performance and Exhaust Emissions of an SI Engine

Performance Characteristics of a Spark Ignited Variable Compression Ratio Engine at Erratic Loads

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