Performance and Emission Assessments for Different Acetone Gasoline Blends Powered Spark Ignition Engine

2018 ◽  
Vol 10 (2) ◽  
Author(s):  
A. Alahmer
Keyword(s):  
Alternative Fuels ◽  
Gasoline Engine ◽  
Electronic Control Unit ◽  
Engine Performance ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Pollutant Emissions ◽  
Exhaust Emission ◽  
Promising Alternative ◽  
Performance And Emission

Acetone-gasoline fuel is considered as one of the promising alternative fuels in recent years and it is promoted as being able to overcome the difficulty of simultaneously reducing the exhaust emissions and improving of gasoline engine performance. This manuscript experimentally investigates the engine performance and on the main pollutant emissions for a single cylinder, four-stroke, spark-ignition engine powered by gasoline fuels of two different acetone-gasoline blends namely AC5 (5 vol. % acetone + 95 vol. % gasoline) and AC10. The experiments were conducted in the speed range from 1000 to 3600 rpm. The SI engine was connected to eddy current dynamometer with electronic control unit (ECU) and an exhaust gas analyzer. It was found that, in general, as the percentage of acetone added to gasoline increases in the blends, the engine performance improved. Numerically, it was found that the AC10 had a higher engine brake power, thermal efficiency, volumetric efficiency and BSFC with 4.39%, 6.9%, 7.2% and 5.2 percent respectively than those of pure gasoline. Furthermore, the use of acetone with gasoline fuel reduces exhaust emission concentrations by 26.3%, 30.3%, 6.6% and 4.4% for CO, UHC, NOx and CO2 respectively

Supercharging the Double-Fueled Spark Ignition Engine: Performance and Efficiency

2017 ◽  
Vol 139 (10) ◽  
Author(s):  
Emiliano Pipitone ◽  
Stefano Beccari ◽  
Giuseppe Genchi
Keyword(s):  
Alternative Fuels ◽  
Combustion Engine ◽  
Engine Performance ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Gaseous Fuel ◽  
Valve Train ◽  
Pollutant Emissions ◽  
Emissions Reduction ◽  
Boost Pressure

Internal combustion engine development focuses mainly on two aspects: fuel economy improvement and pollutant emissions reduction. As a consequence, light duty spark ignition (SI) engines have become smaller, supercharged, and equipped with direct injection and advanced valve train control systems. The use of alternative fuels, such as natural gas (NG) and liquefied petroleum gas (LPG), thanks to their lower cost and environmental impact, widely spread in the automotive market, above all in bifuel vehicles, whose spark ignited engines may run either with gasoline or with gaseous fuel. The authors in previous works experimentally tested the strong engine efficiency increment and pollutant emissions reduction attainable by the simultaneous combustion of gasoline and gaseous fuel (NG or LPG). The increased knock resistance, obtained by the addition of gaseous fuel to gasoline, allowed the engine to run with stoichiometric mixture and best spark timing even at full load. In the present work, the authors extended the research by testing the combustion of gasoline–NG mixtures, in different proportions, in supercharged conditions, with several boost pressure levels, in order to evaluate the benefits in terms of engine performance, efficiency, and pollutant emissions with respect to pure gasoline and pure NG operation. The results indicate that a fuel mixture with a NG mass percentage of 40% allows to maximize engine performance by adopting the highest boost pressure (1.6 bar), while the best efficiency would be obtained with moderate boosting (1.2 bar) and NG content between 40% and 60% in mass.

scholarly journals Experimental Assessment of the Performance and Emissions of a Spark-Ignition Engine Using Waste-Derived Biofuels as Additives

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 5209
Author(s):  
Joaquim Costa ◽  
Jorge Martins ◽  
Tiago Arantes ◽  
Margarida Gonçalves ◽  
Luis Durão ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Electronic Control Unit ◽  
Engine Performance ◽  
Control Unit ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Pollutant Emissions ◽  
Low Grade ◽  
Performance And Emissions ◽  
Fuel Mixtures

The use of biofuels for spark ignition engines is proposed to diversify fuel sources and reduce fossil fuel consumption, optimize engine performance, and reduce pollutant emissions. Additionally, when these biofuels are produced from low-grade wastes, they constitute valorisation pathways for these otherwise unprofitable wastes. In this study, ethanol and pyrolysis biogasoline made from low-grade wastes were evaluated as additives for commercial gasoline (RON95, RON98) in tests performed in a spark ignition engine. Binary fuel mixtures of ethanol + gasoline or biogasoline + gasoline with biofuel incorporation of 2% (w/w) to 10% (w/w) were evaluated and compared with ternary fuel mixtures of ethanol + biogasoline + gasoline with biofuel incorporation rates from 1% (w/w) to 5% (w/w). The fuel mix performance was assessed by determination of torque and power, fuel consumption and efficiency, and emissions (HC, CO, and NOx). An electronic control unit (ECU) was used to regulate the air–fuel ratio/lambda and the ignition advance for maximum brake torque (MBT), wide-open throttle (WOT)), and two torque loads for different engine speeds representative of typical driving. The additive incorporation up to 10% often improved efficiency and lowered emissions such as CO and HC relative to both straight gasolines, but NOx increased with the addition of a blend.

scholarly journals A comprehensive numerical study of the ethanol blended fuel effect on the performance and pollutant emissions in spark-ignition engine

2014 ◽  
Vol 18 (1) ◽  
pp. 29-38 ◽  
Author(s):  
Motlagh Zangooee ◽  
Razavi Modarres
Keyword(s):  
Numerical Study ◽  
Load Condition ◽  
Engine Performance ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Pollutant Emissions ◽  
Injection System ◽  
Thermodynamic State ◽  
Point Injection ◽  
Blended Fuel

In the present work, the performance and pollutant emissions in a spark ignition engine has been numerically investigated. For this purpose, the coupled KIVA code with CHEMKIN is used to predict the thermodynamic state of the cylinder charge during each cycle. Computations were carried out for a four cylinder, four strokes, multi point injection system (XU7 engine). Numerical cases have been performed up to 30% vol. of ethanol. Engine simulations are carried out at 2000, 2500 and 3000 rpm and full load condition. The numerical results showed that pollutant emissions reduce with increase in ethanol content. Based on engine performance, the most suitable fraction of ethanol in the blend was found to be nearly 15% for the XU7 engine.

scholarly journals Parametric Investigation on Single Cylinder Spark Ignition Engine Fueled Methanol Blends; Water-Based Micro Emulsions and Conventional Gasoline

2021 ◽  
Vol 39 (3) ◽  
pp. 919-924
Author(s):  
Ufaith Qadiri ◽  
Amjad Ali Pasha ◽  
Mustafa Mutiur Rahman ◽  
Mohammed Abdul Raheem ◽  
Abdul Gani Abdul Jameel ◽  
...  
Keyword(s):  
Alternative Fuels ◽  
Spark Ignition ◽  
Simulation Software ◽  
Spark Ignition Engine ◽  
Emission Characteristics ◽  
Nox Emissions ◽  
Single Cylinder ◽  
Performance And Emission ◽  
Combustion Properties ◽  
Water Based

In this contribution, the investigation conducted on alternative fuels includes methanol 20% blended with gasoline 80% and emulsion-based fuel with the composition of gasoline 80%, ethanol 15%, and H2O 5% are compared with 100% conventional gasoline fuel. These fueled single-cylinders spark ignition engine is studied for checking their performance and emission characteristics as per future emission norms. This work is performed on One-dimensional AVL Boost Simulation Software. The simulations predicted the performance and emission characteristics were far lesser than conventional 100% gasoline. These fuels meet the strict emission regulations of Euro VII. The main purpose of this investigation is to use alternative fuels to improve the performance and emission characteristics of the single- cylinder spark ignition engine and reduce the consumption of fossil fuel reserves. This investigation led to the conclusion that by using methanol 20% in 80% gasoline and micro-emulsion, fuel improves the power, BSFC (brake specific fuel consumption), thermal efficiency and combustion properties of the single-cylinder spark-ignition engine. The CO, HC and NOx emissions were also reduced for alternative fuel than 100% gasoline fuel. The novel water-based emulsion fuel showed the lowest value of NOx emissions as compared to blended 20% methanol with 80% gasoline and 100% gasoline fuel.

scholarly journals Effect of inlet air temperature on SI engine fueled with diethyl ether-gasoline blends

2018 ◽  
Vol 12 (4) ◽  
pp. 4044-4055
Author(s):  
S. Srihari ◽  
D. Sanjay Kumar ◽  
Thirumalini S
Keyword(s):  
Fuel Consumption ◽  
Diethyl Ether ◽  
Air Temperature ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Exhaust Emission ◽  
Si Engine ◽  
Performance And Emission ◽  
Air Temperatures ◽  
Air Intake

In this study the performance and emission characteristics of spark ignition genset engine fueled with gasoline and diethyl ether (DEE) blends are carried out. The DEE blends are varied from 3%, 6% and 9% by volume in gasoline. A four-stroke single cylinder constant speed spark ignition engine is used for the experiments. The variation in fuel consumption and exhaust emission with respect to two different inlet air temperatures are studied. The concentration of exhaust emissions such as HC, CO, NOx is observed. The parameters such as inlet air temperature, brake specific fuel consumption, relative air to fuel ratio are also measured. It is noticed that 6% DEE blend in gasoline reduced almost reduced HC emission about 57% and also considerable reduction in CO emission at lower air intake temperature. The addition of diethyl ether has an improvement in performance and significant reduction in HC, CO and NOx emissions.

scholarly journals Aspects of the bioethanol use at the turbocharged spark ignition engine

2015 ◽  
Vol 19 (6) ◽  
pp. 1959-1966
Author(s):  
Zuhair Obeid ◽  
Alexandru Cernat ◽  
Constantin Pana ◽  
Niculae Negurescu
Keyword(s):  
Alternative Fuels ◽  
Spark Ignition ◽  
Point Of View ◽  
Spark Ignition Engine ◽  
Pollutant Emissions ◽  
Experimental Investigations ◽  
Emissions Reduction ◽  
Spark Ignition Engines ◽  
Ignition Timing ◽  
Research Domain

In the actual content of pollution regulations for the automotives, the use of alternative fuels becomes a priority of the thermal engine scientific research domain. From this point of view bioethanol can represents a viable alternative fuel for spark ignition engines offering the perspective of pollutant emissions reduction and combustion improvement. The paper presents results of the experimental investigations of a turbo-supercharged spark ignition engine (developed from a natural admission spark ignition engine fuelled with gasoline) fuelled with bioethanol-gasoline blends. The engine is equipped with a turbocharger for low pressure supercharging, up till 1.4 bar. An correlation between air supercharging pressure-compression ratio-dosage-spark ignition timing-brake power is establish to avoid knocking phenomena at the engine operate regime of full load and 3000 min-1. The influences of the bioethanol on pollutant emissions level are presented.

scholarly journals The potential of current european light duty CNG-fuelled vehicles to meet Euro 6 requirements

2012 ◽  
Vol 151 (4) ◽  
pp. 20-33
Author(s):  
Piotr BIELACZYC ◽  
Andrzej SZCZOTKA
Keyword(s):  
Natural Gas ◽  
Co2 Emissions ◽  
Alternative Fuels ◽  
Oxygen Sensor ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Injection System ◽  
The European Union ◽  
Special Equipment ◽  
Promising Alternative

Natural gas is one of the most promising alternative fuels to meet the new stringent Euro 6 emissions regulations in the European Union, as well as the planned CO2 emissions reductions. For spark-ignition (SI) engines, bi-fuel fuelling equipment is widely available and engine conversion technology for European automobiles is well established, thereby facilitating usage of CNG in this engine type. This study investigates the implications of natural gas fuelling of a passenger car featuring a spark-ignition engine regarding the possibility of meeting Euro 6 emissions limits for gaseous pollutants. This paper presents an analysis of CO, THC, NMHC, NOx and CO2 emissions during testing of a vehicle on a chassis dynamometer, fuelled with CNG, in the context of the new Euro 6 emissions requirements. The analyses were performed on a Euro 5 bi-fuel vehicles with an SI engine equipped with an MPI feeding system operating in closed-loop control, a typical three-way-catalyst, and a heated oxygen sensor. The vehicles had been adapted by their manufacturer for fuelling with CNG by using additional special equipment mounted onto the existing petrol fuelling system. The vehicles tested featured a multipoint gas injection system latest generation. The tests subject to the analyses presented here were performed in the Engine Research Department of BOSMAL Automotive Research and Development Institute Ltd in Bielsko-Biala, Poland, within a research programme investigating the influence of alternative fuels on exhaust emissions from automotive vehicles with spark-ignition and compression-ignition engines.

Numerical Investigation of Using 1-Butanol in a Port Fuel Injection Spark Ignition Engine

2012 ◽  
Vol 588-589 ◽  
pp. 319-322
Author(s):  
Ye Jian Qian ◽  
Zhi Fang Chen ◽  
Chun Mei Wang
Keyword(s):  
Equivalence Ratio ◽  
Fuel Injection ◽  
Numerical Study ◽  
Engine Performance ◽  
Maximum Level ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Nox Emissions ◽  
Performance And Emission ◽  
Port Fuel Injection

A numerical study is conducted in a port fuel-injection, spark-ignition engine fuelled with 1-butanol at different fuel/air equivalence ratios and inlet air temperatures. The effect of fuel/air equivalence ratio and inlet air temperature on the engine performance and emission characteristics is analyzed. The modeling results show that the incylinder pressure and temperature increases with the increase of fuel/air equivalence ratio. The slightly lean mixtures offer the maximum level of NOX emissions. In addition, preheating the inlet air can increase the incylinder pressure peak value and NOX emissions.

scholarly journals A Study of Spark Ignition Engine Fueled with Methanol and Ethanol Fuel Blends with Iso-Octane

2014 ◽  
Vol 08 (1) ◽  
Keyword(s):  
Thermal Efficiency ◽  
Alternative Fuels ◽  
Engine Speed ◽  
Engine Performance ◽  
Spark Ignition ◽  
Constant Load ◽  
Positive Influence ◽  
Air Pollutant ◽  
Spark Ignition Engine ◽  
Evaporation Heat

Alternative fuels are derived from resources other than petroleum. The benefit of these fuels is that they emit less air pollutant compare to gasoline and most of them are more economically beneficial compared to oil and they are renewable. In addition, ethanol has higher evaporation heat, octane number and flammability temperature therefore it has positive influence on engine performance and reduces exhaust emissions. In this study, the effects of unleaded iso-octane, unleaded isooctane–ethanol blend (E5) and iso-octane-methanol (M5) blends on engine performance are investigated experimentally in a single cylinder fourstroke spark-ignition engine at a constant 8 Kg load. The engine speed was changed from 1100 to 1800 rpm. The results of the engine test showed that ethanol addition to unleaded iso-octane increases the value of IP, FP and IMEP with E5 fuel. The results also showed that the indicated power, brake power, friction power, indicated mean effective pressure, torque, exhaust temperature, and thermal efficiency increases with the increase in engine speed at a constant load of 8 Kg for E5, M5 and isooctane fuels. Thermal efficiency was maximum for E5 fuel (38.13%) at a speed of 1750 rpm.

scholarly journals The Comparative Study on Compressed Natural Gas (CNG) and Compressed Biomethane Gas (CBG) Fueled in a Spark Ignition Engine

2021 ◽  
Vol 302 ◽  
pp. 01005
Author(s):  
Tanat Limpachoti ◽  
Kampanart Theinnoi
Keyword(s):  
Natural Gas ◽  
Engine Performance ◽  
Maximum Load ◽  
Alternative Fuel ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Exhaust Emission ◽  
Compressed Natural Gas ◽  
Good Opportunity ◽  
Exhaust Gas Emission

Compressed biomethane gas (CBG) is an interesting alternative fuel that can be used to solve fossil fuel crisis problems. Nevertheless, it is concerned about engine performance and exhaust gas emission. In additions, CBG can be produced from agricultural harvesting residues and the food industry that is a good opportunity for utilizing biogas as a vehicle fuel. The aims of this research are comparative analysis of the engine performance and exhaust emission on a CBG and compressed natural gas (CNG) fuelled in a spark ignition engine on engine performance and emissions. The engine has been modified to operate with both fuel gases under constant engine load (50% maximum load) and engine speed (1500 - 3500 rpm). The results show that the engine operated with CBG has higher thermal efficiency with lower the nitrogen oxide (NOx) and hydrocarbon (HC) emissions compared with CNG. Thus, the CBG fuel can be used as an alternative fuel to substitute CNG fuel in the spark ignition engine. In additions, the results give the useful information for developed and optimised the engine operated with compression biogas to impact the higher demand of automotive fuels in the future.

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