Experimental evaluation of the effect of compression ratio on performance and emission of SI engine fuelled with gasoline and n-butanol blend at different loads

Thomas, Rinu; Sreesankaran, M.; Jaidi, Jeevan; Paul, Dileep M.; Manjunath, Pavan

doi:10.1016/j.pisc.2016.06.076

Cited by 27 publications

(9 citation statements)

References 7 publications

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“…An increase in the cylinder temperature due to the increase in compression ratio and the compression of the air-fuel mixture in a smaller area resulted in a better combustion and evaporation of the high-octane fusel oil. This result is similar to some studies in the literature [38,39]. The overall efficiency increased in parallel with the increase in the amount of load.…”

Section: Brake Thermal Efficiency and In-cylinder Pressure At Differesupporting

confidence: 91%

Improvement of Fusel Oil Features and Effect of Its Use in Different Compression Ratios for an SI Engine on Performance and Emission

Şimşek

Saygın

2020

Energies

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In this study, the effects of the use of improved fusel oil on engine performance and on exhaust emissions in a spark-ignition engine were investigated experimentally in consideration of the water, gum, and moisture content at high compression ratios according to TS EN 228 standards. In the study, a four-stroke, single-cylinder, air-cooled, spark plug ignition engine with an 8/1 compression ratio was used at three different compression ratios (8/1, 8.5/1, 9.12/1). Experiments were performed for six different ratios of fuel blends (F0, F10, F20, F30, F40, and F50) at a constant speed and different loads. The data obtained from the experiments were compared with the original operating parameters of the engine while using gasoline. According to the test results, the optimal engine performance was at a 9.12/1 compression ratio and with a F30 fuel blend. With the increase from an 8/1 to 9.12/1 compression ratio for the F30 fuel blend, the overall efficiency increased by 6.91%, and the specific fuel consumption decreased by 2.35%. The effect of the optimum fusel blend on the emissions was also examined and CO emissions were reduced by 36.82%, HC emissions were reduced by 23.07%, and NOx emissions were reduced by 15.42%, while CO2 emissions were increased by 13.88%.

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Section: Brake Thermal Efficiency and In-cylinder Pressure At Differesupporting

confidence: 91%

Improvement of Fusel Oil Features and Effect of Its Use in Different Compression Ratios for an SI Engine on Performance and Emission

Şimşek

Saygın

2020

Energies

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“…Penelitian sebelumnya dilakukan untuk meningkatkan performa mesin bensin atau spark ignition engine (SI engine) untuk mampu mengatasi berbagai medan jalan yang ada. Beberapa cara untuk meningkatkan performa dari SI engine adalah variasi pemilihan bahan bakar [2], mengubah rasio kompresi mesin [3], mengubah nilai air to fuel ratio (AFR) [4], dan menggunakan turbocharger [5].…”

Section: Pendahuluanunclassified

“…Variasi pemilihan bahan bakar seperti pada Pai [2] memerlukan perbaikan infrastruktur terutama pada stasiun pengisian bahan bakar. Perubahan rasio kompresi yang dirancang oleh Thomas [3] memerlukan perubahan rancangan SI engine. Metode perubahan nilai AFR seperti pada Nugraha [4]…”

Section: Pendahuluanunclassified

Simulasi Kendali Tekanan Kompresor Pada Electrically Assisted Turbocharger Dengan Metode Pi-Gain Scheduling

2018

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Mayoritas dari mobil-mobil berpenumpang didesain sehingga memiliki performa yang handal, hemat bahan bakar, dan rendah emisi gas buang. Dalam hal kemampuan sebuah mobil mampu mengatasi berbagai medan jalan yang ada maka performa yang handal menjadi fokus dari pengembangan mobil-mobil saat ini. Beberapa cara untuk meningkatkan performa dari SI engine adalah variasi pemilihan bahan bakar, mengubah rasio kompresi mesin, mengubah nilai air to fuel ratio (AFR), dan menggunakan turbocharger. Turbocharger merupakan salah satu cara yang terbaik. Turbocharger juga memiliki kelemahan apabila diterapkan di SI engine yaitu terjadinya kondisi turbo lag. Penelitian ini merancang sistem kendali yang pada EAT untuk meminimalkan turbo lag pada turbocharger. Metode sistem kendali yang digunakan ada PI-Adaptif. Kendali PI akan mengendalikan agar sistem memiliki respon yang cepat dan stabil. Kendali adaptif akan mengatasi parameter atau variabel sistem yang berubah berdasarkan waktu (time varying).

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“…Thomas et al 26 conducted a study on variable CR of a spark-ignition (SI) engine with neat gasoline and blend of 20% n-butanol and 80% gasoline to examine the variation of BTE, exhaust gas temperature, and emissions at different loads. The results indicated that BTE enhances with a higher CR at all engine loads.…”

Section: Introductionmentioning

confidence: 99%

Effect of compression ratio variation and waste cooking oil methyl ester on the combustion and emission characteristics of an engine

Hojati

Shirneshan

2019

Energy & Environment

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In this research, a thermodynamic zero-dimensional model has been done to predict performance characteristics (in-cylinder pressure, heat released, and the thermal efficiency) of a diesel engine with the use of biodiesel–diesel fuel blends (B0, B20, B50, B80, and B100) at different compression ratios (14, 15, 16, 17, and 18). The corresponding mathematical and thermodynamic relationships have been solved in MATLAB. Based on the experimental tests, it was found that the developed model can predict the engine variables sufficiently. According to the results, the heat release rate and the cylinder pressure increased for all fuel blends by an increase in the compression ratio. Moreover, with the increasing biodiesel amount in the fuel blend (up to 50%) heat release rate and the cylinder pressure increased but these variables have a reduction when biodiesel percentage increases from 50 to 100 due to the lower heating value of waste cooking oil methyl ester in comparison with neat diesel fuel. Moreover, according to the experimental tests, carbon monoxide emission was reduced when biodiesel proportion increased in the fuel blend but the nitrogen oxides emitted from the engine enhanced when biodiesel amount in the fuel mixture increased. According to the results, it can be concluded that B50 has better combustion characteristics among all fuel blends.

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Experimental evaluation of the effect of compression ratio on performance and emission of SI engine fuelled with gasoline and n-butanol blend at different loads

Cited by 27 publications

References 7 publications

Improvement of Fusel Oil Features and Effect of Its Use in Different Compression Ratios for an SI Engine on Performance and Emission

Improvement of Fusel Oil Features and Effect of Its Use in Different Compression Ratios for an SI Engine on Performance and Emission

Simulasi Kendali Tekanan Kompresor Pada Electrically Assisted Turbocharger Dengan Metode Pi-Gain Scheduling

Effect of compression ratio variation and waste cooking oil methyl ester on the combustion and emission characteristics of an engine

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