Experimental and Theoretical Comparative Study of Performance and Emissions for a Fuel Injection SI Engine with Two Octane Blends

Khalifa, Atia E.; Antar, Mohamed A.; Farag, Mohammed Said

doi:10.1007/s13369-015-1649-2

Cited by 10 publications

(6 citation statements)

References 18 publications

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“…This is attributed to increasing the flame speed, turbulence in the cylinder, volumetric efficiency and added heat. Similar behavior has been reported by almost all investigators on various types of engines and fuels used [5][6][7][8][9][10]. Both RON83 and RON94.5 fuels indicated no significant difference in their brake power because of the same engine speed and load.…”

Section: Test Proceduressupporting

confidence: 84%

“…Ref. [10] reported similar behavior on varying types of engine and octane numbers gasoline fuels. The use of RON83 gasoline showed an increase in UHC emission by 49.44% and 49.11% compared to RON94.5 gasoline at high and low load, respectively.…”

Section: Resultsmentioning

confidence: 68%

“…Thus, the air to fuel ratio changed and this caused a very slight increase in (bsfc). Many investigators have reported similar behavior for variable engine types and gasoline octane numbers [5,9,10]. However, it was noticed that the (bsfc) reduced at wider throttle openings indicating that the engine economical range of operation is close to WOT.…”

Section: Test Proceduresmentioning

confidence: 86%

“…In terms of exhaust emissions, RON95 produced lower NOx concentration, but higher CO 2 , CO and UHC emissions. Khalifa et al [10] carried out a practical study to compare the effect of using two gasoline fuels (RON91 and RON95) on the performance and exhaust emissions of a modern fuel injection SI engine at different engine speeds and loads. The results displayed that the RON91 has a slightly higher brake power and brake specific fuel consumption (bsfc) compared to RON95.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Test Proceduressupporting

confidence: 84%

Section: Resultsmentioning

confidence: 68%

Section: Test Proceduresmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

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

Athafah

Salih²

2020

ETJ

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“…RON95 shows higher efficiency at more top engine speed and loads. Khalifa et al, (2015) and Binjuwair et al, (2015) explore RON91 and RON95 on the performance of SI fuel injecting engine regarding brake power and BSFC. The results show that RON 91 have higher engine brake power and lower BSFC compared to RON95.…”

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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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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