Performance and Emissions Analysis of BE85-Gasoline Blends on Spark Ignition Engine (original) (raw)
Related papers
2013
In the present study, the effects of bioethanol-unleaded gasoline blends on engine performance were investigated in a spark ignition engine. Fuel containing 100% ethanol (E100), fuel blend containing 40% bioethanol by volume (E40) and 100% unleaded gasoline (E0) were tested and the test results were compared. As the result of the study, it was found that the use of unleaded gasoline and bioethanol-unleaded gasoline blends as fuel did not cause a significant change in engine performance. The results of the engine tests showed that the use of unleaded gasoline-bioethanol blends as fuel caused a decrease in engine torque and engine power depending on the increase in the ratio of bioethanol in the fuel blend. As the result of these decreases, increases of up to 30% were observed in the specific fuel consumption of the engine.
Journal of KONES, 2019
Limiting emissions of harmful substances is a key task for vehicle manufacturers. Excessive emissions have a negative impact not only on the environment, but also on human life. A significant problem is the emission of nitrogen oxides as well as solid particles, in particular those up to a diameter of 2.5 microns. Carbon dioxide emissions are also a problem. Therefore, work is underway on the use of alternative fuels to power the vehicle engines. The importance of alternative fuels applies to spark ignition engines. The authors of the article have done simulation tests of the Renault K4M 1.6 16v traction engine for emissions for fuels with a volumetric concentration of bioethanol from 10 to 85 percent. The analysis was carried out for mixtures as substitute fuels – without doing any structural changes in the engine's crankshafts. Emission of carbon monoxide, carbon dioxide, hydrocarbons, oxygen at full throttle for selected rotational speeds as well as selected engine performanc...
Fuel consumption studies of spark ignition engine using blends of gasoline with bioethanol
Agronomy research, 2010
The increased oxygen content in blends of gasoline with bioethanol causes the necessity for increasing fuel supply to the engine. Car oxygen sensor, reacting to the presence of oxygen in the exhaust gases, increases the amount of injected fuel. Consequently, the higher concentration of bioethanol in fuel blends usually also increases fuel consumption. This study explores how an increase in bioethanol concentration in fuel blends affects the standard car’s fuel consumption and determines which elements of the system limit the maximum possible concentration of bioethanol in the blend with gasoline.
Journal of Renewable Energy, 2015
This study is an experimental investigation of the effect of bioethanol gasoline blending on exhaust emissions in terms of carbon dioxide CO2, carbon monoxide CO, unburnt hydrocarbons UHC, and nitric oxide NOxof a spark ignition engine. Tests are conducted at controlled throttle and variable speed condition over the range of 1200 to 2000 rpm with intervals 400 rpm. Different compression ratios are tested for each speed, namely (7,8,10, and 11). Pure gasoline and bioethanol gasoline blends are used. The bioethanol used is produced from Iraqi date crop (Zehdi). Blending is done on energy replacement bases. Ethanol energy ratio (EER) used is 5%, 10%, and 15%. At each of the three designated engine speeds, the torque is set as 0, 3, 7, 10, and 14 N·m. It is found that ethanol blending reduces CO and UHC concentration in the exhaust gases by about 45% and 40.15%, respectively, and increases NOxand CO2concentrations in the exhaust gases by about 16.18% and 7.5%, respectively. It is found ...
International Journal of Technology, 2020
Indonesia's increasing energy dependence on fossil fuels amid the country's declining petroleum reserves requires the development of an effective solution in the form of renewable fuels such as fuel-grade bioethanol. This study investigated a potential way of reducing dependence on fossil fuels for motorcycle engines by using fuel-grade bioethanol blended with gasoline to produce a novel marketable fuel type. The present paper focuses on the effect of various fuel blends >40% ethanol on the performance of a spark ignition (SI) engine. This study used a standard, off-the-shelf, 150cc SI engine as the test engine, running on RON 92 gasoline with varying mixtures of bioethanol (40% (E40); 50% (E50); and 60% (E60)), connected to a dynamometer to obtain performance data (torque, power, and specific fuel consumption) and emission data (hydrocarbon, carbon monoxide, and carbon dioxide). The results showed that E60 represented the optimum mixture as it produced the highest torque, power and specific fuel consumption optimum used E50.
Renewable and Sustainable Energy Reviews, 2017
Several alternatives have been recently proposed in the literature for replacing gasoline fuel in spark-ignition engines. These alternatives were pertained based on different engine working conditions and they yield fairly different performance and emissions results. Consequently, there is a major need for comparing and evaluating the performance and environmental behavior of these alternatives at same conditions, especially the new proposed ones. Five different alternatives, as ethanol (E), methanol (M), n-butanol (nB), isobutanol (iB) and acetone (AC), were experimentally applied at same blend rates (3%, 7% and 10% by volume) in gasoline and same engine working conditions. This is the first time that such alternatives are compared with each others; in addition, the alternatives are compared with neat gasoline. The comparison basis was focused on the performance via brake power (BP), torque (Tq) and volumetric efficiency (VE) and the emissions via CO (carbon monoxide), CO 2 (carbon dioxide) and UHC (unburnt hydrocarbons). Results demonstrated that the nB and iB alternatives provide a significant drop in BP, Tq and VE when compared to other alternatives as well as the neat gasoline. The maximum engine performance is obtained by both E and M. AC showed a moderate performance among all test fuels. Regarding the emissions, AC showed the lowest CO and UHC emissions, however, nB and iB showed the highest emissions.
Effect of biofuel E85 combustion on fuel consumption in spark-ignition engines
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2012
Biofuels represent an alternative source of energy that should gradually decrease our dependence on crude oil. A rapid development of their use in combustion engines is above all the consequence of their very positive balance of emissions. The possibility of use of biofuels in conventional combustion engines is given by their physico-chemical properties. Bioethanol is one of biofuels that can be used in spark-ignition engines. However, because of its lower heating value, it is necessary to change the mixing ratio fuel/air. The aim of this paper is to evaluate the eff ect of combustion of a mixture of bioethanol with gasoline (in the ratio 85:15) on fuel consumption in the spark-ignition engine. Experimental measurements were performed using a six-cylinder spark-ignition Peugeot engine with the overall volume of 2.946 cm 3 , which was equipped with a multi-hole system of indirect injection. Obtained results indicated that the combustion of E85 biofuel markedly increased the reduction of specifi c fuel consumption (corrected to atmospheric conditions). As compared with gasoline Natural 95, the actual volume consumption of E85 biofuel increased under the maximum engine load in average by 30.4 %. In spite of a relatively high consumption of E85 biofuel the total costs associated with running of a modifi ed engine were lower than those of the engine combusting gasoline Natural 95.
Evaluating Environmental Effects of Bioethanol-Gasoline Blends in Use a Si Engine
2016
Bioethanol produced from sugarcane is anticipated to make a major input on transportation fuel markets. In this paper, the environmental effects of bioethanol-gasoline blends were evaluated in use a spark ignition (SI) engine. The bioethanol used in this study was produced by a sugar refinery in Turkey. To determine the exhaust emissions of bioethanol and gasoline blends, SI engine operated at different engine test conditions, and also the test results of bioethanol-gasoline blends compared with those of pure gasoline. The experimental results showed that when the test engine was fueled with bioethanol-gasoline blends, CO and unburned HC emissions decreased, but CO2 and NOx emissions increased. At the same time, the results indicated that the air-fuel equivalence ratio increased with the increase of bioethanol percentages in fuel blends.
Engineering Science and Technology, an International Journal
The aim of this study, which is the first of its kind, is to compare experimentally the effects of different ternary blended fuels, e.g., ethanol-methanol-gasoline (EM), n-butanol-iso-butanol-gasoline (niB) and iso-butanol-ethanol-gasoline (iBE), on engine performance, combustion and pollutant emission characteristics to demonstrate the best potential one from these ternary fuel blends as alternative to fossil fuel. The experiments were performed at similar operating conditions and low content rates of fuel blends (3-10 vol% in gasoline) with varying engine speeds between 2600 and 3400 r/min at half throttle opening position of spark ignition engine. The results showed that the engine performance (volumetric efficiency, torque and brake power) increased, while pollutant emissions (carbon monoxide (CO) and unburnt hydrocarbons (UHC)) decreased at using EM fuel blends, compared to other blended fuels. It was also found that the highest emissions and the lowest performance among the blended fuels are introduced by niB, while iBE presented a moderate level of performance and emissions between niB and EM. On the other hand, the performance of niB and iBE is lower than the base fuel (neat gasoline) but EM showed a higher performance than the base fuel. The emissions of EM, niB and iBE are all lower than the base fuel.
The present study is the experimental investigation of performance and emission characteristics of spark ignition engine (SI) with gasoline-n-buatanol blends. In various properties n-butanol is almost equivalent to gasoline. Recently n-butanol can be manufactured from bio mass and it will be a renewable fuel in near future. Also the viscosity of n-butanol is higher than gasoline. Blends of n-butanol of proportions from 30 to 50% by volume along with gasoline were tested in a single cylinder SI engine in various speeds. The results shows that there was a considerable reduction in un burnt hydrocarbons (UBHC), Carbon monoxide (CO) emissions in all speeds. Brake thermal efficiency (BTE) of all blends were higher than gasoline in all the speeds. There was a slightly increase in brake specific fuel consumption(BSFC) and oxides of nitrogen(NOx). This study is giving an opportunity to reduce the dependency of gasoline which is a fossil fuel to certain extent.