Comparative studies on combustion, performance and emission characteristics of a two-wheeler with gasoline and 30% ethanol-gasoline blend using chassis dynamometer

Sakthivel, Pachagounder; Subramanian, K.A.; Mathai, Reji

doi:10.1016/j.applthermaleng.2018.10.035

Cited by 59 publications

(20 citation statements)

References 18 publications

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“…Different gasoline-ethanol blends in terms of ethanol content were investigated. As a general trend, each experimental dataset confirmed the benefits in terms of CO and unburned hydrocarbons (UHC) reduction increasing the ethanol content in the blend [9,11,12,13,14,15,16,17]. The impact of gasoline-ethanol mixtures on NOx emissions still requires deeper investigations since no clear trends emerge from literature.…”

Section: Introductionmentioning

confidence: 74%

“…The impact of gasoline-ethanol mixtures on NOx emissions still requires deeper investigations since no clear trends emerge from literature. In fact, while in [12,17] higher NOx emissions were registered increasing ethanol content, opposite results were found in [13,15]. Opposite trends shown by the different experimental tests can be explained considering the high sensitivity exhibited by nitrogen oxides to the specific engine OP and ethanol content, as shown in [11,14].…”

Section: Introductionmentioning

confidence: 90%

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Gasoline-ethanol blend formulation to mimic laminar flame speed and auto-ignition quality in automotive engines

Pecchia

Pessina

Berni

et al. 2020

Fuel

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Section: Introductionmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 90%

Gasoline-ethanol blend formulation to mimic laminar flame speed and auto-ignition quality in automotive engines

Pecchia

Pessina

Berni

et al. 2020

Fuel

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“…Because the temperature of the combustion chambers was less than that in the medium/high-speed regions, and the fuel was not supplied to the engine during deceleration, during which the air-fuel ratio increases significantly [54]. The lean concentration of the fuel in the mixture and the cooling of the engine lead to further incomplete combustion of CO [50,57,58]. Some high-emission points of NOx were distributed in the high-speed region (speed > 90 km/h, 0 kW/t < VSP < 18 kW/t).…”

Section: The Distribution Of High-emission Pointsmentioning

confidence: 99%

“…Therefore, the increasing nucleation and Aitken were likely to be derived mainly from the formed through the nucleation of organic, nitrate or sulfur compounds during the dilution and cooling processes [72][73][74][75]. In addition, their accumulation (stage 8-10, 0.48-1.23 µm) increased significantly in Bin7 (Speed > 80 km/h, VSP ≥ 5 kW/t), because of the cooling of the engine led to more incomplete combustion PN [50,57,58], during sudden deceleration [53]. The Aitken and accumulation of No.7 (diesel bus, China III) increased significantly when its speed was above 80 km/h).…”

Section: The Relationship Between Speed Vsp and The Pn Size Distribmentioning

confidence: 99%

Transient Characterization of Automotive Exhaust Emission from Different Vehicle Types Based on On-Road Measurements

Mao

et al. 2020

Atmosphere

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Previous works on real-world vehicle emission characteristics have mainly focused on the influences of fuel, speed, vehicle type, elevation, and other factors on vehicle emission quantity and components. However, few studies have investigated the transient trend of automotive exhaust emissions through on-road measurements. The key objective of the present paper was to examine the transient characteristics of exhaust emissions from different vehicle types on the roads of Tianjin. To achieve the goal, a portable emission measurement system (PEMS) was employed to monitor emissions from selected test vehicles—private cars, passenger vehicles, and cargo vehicles. It was found that the high-emission points of test vehicles were mainly distributed in two regions: the high-speed region (speed > 70–90 km/h, vehicle-specific power (VSP) > 0 kW/t) and the medium-speed–acceleration region (20–30 km/h < speed < 60–90 km/h, 0 kW/t <VSP < 12 kW/t). The CO, hydrocarbon (HC), NOx, and particulate number (PN) average emission rates in the high-emission points could be 3.15–14.93 times, 1.93–24.89 times, 3.23–6.03 times, and 3.22–30.27 times of those of average emission rates. The HC, NOx, and PN average emission rates of China IV vehicles in the high-emission points were 2.46–4.92 times, 3.56–6.03 times, and 3.22–13.21 times of those of average emission rates, not less than those of China III (1.93–2.52 times, 2.75–3.90 times, and 9.98–22.34 times). Test vehicles mainly emitted nucleation-mode and Aitken-mode particles, and the increase of the PN concentration emission rate in low-speed and high-speed regions was higher than that in the medium-speed region. The exhaust gas recirculation (EGR) + diesel particulate filter (DPF) could effectively inhibit the Aitken output caused by turbocharged intercooler (CIC). The selective catalytic reduction (SCR) might cause more nucleation-mode particles.

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“…Sebelumnya, Antonietta dkk [6] menyatakan bahwa bercampurnya bioetanol dengan gasoline memicu terjadinya peningkatan kandungan oksigen dan menurunkan emisi dari proses pembakaran yang tidak sempurna. Penelitian Sakthivel dkk [7] dengan mencampurkan etanol hingga 30% ke dalam gasoline menemukan adanya penurunan emisi CO dan NOx, namun emisi hidrokarbon mengalami peningkatan secara marginal. Sejalan dengan beberapa riset tersebut, Chen dkk [8] mencatat bahwa semakin meningkat komposisi bioetanol dalam gasoline mengakibatkan terjadinya reduksi emisi yang signifikan, meskipun penambahan hingga 40% akan menyebabkan ketidakstabilan pada kondisi idle karena campuran bahan bakar dan udara (A/F mixture) terlalu miskin (lean).…”

Section: Pendahuluanunclassified

Pengaruh Campuran Bioetanol Biji Durian pada Bahan Bakar Pertalite terhadap Performa Mesin dan Emisi Gas Buang Kendaraan

Gunawan¹,

Effendy²

2019

Rot.

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Penelitian ini bertujuan untuk mengevaluasi pengaruh penambahan bioetanol pada bahan bakar pertalite terhadap performa mesin dan emisi gas buang hasil pembakarannya. Mesin otto 4 langkah dengan satu silinder dipergunakan dalam eksperimen pengujian. Tahap berikutnya adalah pengujian performa mesin dan emisi pembakaran yang ditimbulkan pada beberapa variasi konsentrasi penambahan bioetanol ke dalam bahan bakar pertalite. Variasi tersebut yaitu komposisi E05 (95% pertalite dan 5% bioetanol), E10 (90% pertalite dan 10% bioetanol) dan E15 (85% pertalite dan 15% bioetanol). Hasil pengujian menunjukkan bahwa penambahan campuran bioetanol mampu sedikit mereduksi emisi HC dan CO pada pengoperasian putaran mesin antara 2000-4000 rpm. Daya mesin juga masih mampu dipertahankan Langkah pertama adalah produksi bioetanol dengan tahapan pembuatan tepung dari biji durian, liquifikasi, sakarifikasi, fermentasi, distilasi dan memurnikan etanol dengan proses dehidrasi. dengan performa yang relatif tinggi sebagaimana pada penggunaan bahan bakar pertalite murni.

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Comparative studies on combustion, performance and emission characteristics of a two-wheeler with gasoline and 30% ethanol-gasoline blend using chassis dynamometer

Cited by 59 publications

References 18 publications

Gasoline-ethanol blend formulation to mimic laminar flame speed and auto-ignition quality in automotive engines

Gasoline-ethanol blend formulation to mimic laminar flame speed and auto-ignition quality in automotive engines

Transient Characterization of Automotive Exhaust Emission from Different Vehicle Types Based on On-Road Measurements

Pengaruh Campuran Bioetanol Biji Durian pada Bahan Bakar Pertalite terhadap Performa Mesin dan Emisi Gas Buang Kendaraan

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