Impact of denatured anhydrous ethanol–gasoline fuel blends on a spark-ignition engine

RSC Advances ◽  
2014 ◽  
Vol 4 (93) ◽  
pp. 51220-51227 ◽  
Author(s):  
B. M. Masum ◽  
M. A. Kalam ◽  
H. H. Masjuki ◽  
S. M. Ashrafur Rahman ◽  
E. E. Daggig
Keyword(s):  
Alternative Fuel ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Anhydrous Ethanol ◽  
Si Engine ◽  
Promising Alternative ◽  
Fuel Blends

Like other alcohols, denatured anhydrous ethanol is a promising alternative fuel for SI engine.

Biomass-derived 2,5-dimethylfuran as a promising alternative fuel: An application review on the compression and spark ignition engine

2021 ◽  
Vol 214 ◽  
pp. 106687
Author(s):  
Xuan Phuong Nguyen ◽  
Anh Tuan Hoang ◽  
Aykut I. Ölçer ◽  
Dirk Engel ◽  
Van Viet Pham ◽  
...  
Keyword(s):  
Alternative Fuel ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Promising Alternative

Numerical Simulation of a Spark Ignition Engine Using Liquid Fuels and Liquid Fuel Blends

2003 ◽  
Author(s):  
K. Majmudar ◽  
K. Aung
Keyword(s):  
Numerical Simulations ◽  
Liquid Fuel ◽  
Alternative Fuels ◽  
Current Model ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Liquid Fuels ◽  
Si Engine ◽  
Fuel Blends ◽  
Si Engines

The use of alternative fuels such as methanol and ethanol in spark-ignition (SI) engines is beneficial to the environment as it reduces emissions of pollutants such as NOx from these engines with slight penalty on the performance. This paper investigated the use of liquid fuel blends such as ethanol/gasoline blend in an SI engine by numerical simulations. The numerical simulations were based on the models of finite heat release, cylinder heat transfer, pumping losses, and friction losses. Simulations were carried out to evaluate the effects of compression ratio, equivalence ratio, ignition timing, and engine speed on the performance of the SI engine. The results of the simulations were compared with experimental data from the literature to validate the simulations. Good agreements between the computed and experimental results were obtained. The results showed that the current model could satisfactorily predict the performance of an SI engine fueled by liquid fuel blends.

Effect of Biogas Composition Variations on Engine Characteristics Including Operational Limits of a Spark-Ignition Engine

2019 ◽  
Vol 141 (10) ◽  
Author(s):  
Sachin Kumar Gupta ◽  
Mayank Mittal
Keyword(s):  
Carbon Dioxide ◽  
Thermal Efficiency ◽  
Carbon Dioxide Emissions ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Si Engine ◽  
Promising Alternative ◽  
Brake Thermal Efficiency ◽  
Indicated Mean Effective Pressure ◽  
Wide Range

Biogas is a promising alternative fuel to reduce the consumption of petroleum-based fuels in internal combustion (IC) engines. In this work, the effect of various biogas compositions on the performance, combustion, and emission characteristics of a spark-ignition (SI) engine is investigated. Additionally, the effect of Wobbe index (WI) of various fuel compositions was also evaluated on the operational limits of the engine. While considering a wide range of biogas compositions (including bio-methane), the percentage of carbon dioxide (CO2) (in a blend of methane and CO2) was increased from 0 to 50% (by volume). A single-cylinder, water-cooled, SI engine was operated at 1500 rpm over a wide range of operating loads with compression ratio of 8.5:1. With the increase in WI of the fuel, both low (limited by coefficient of variation (COV) of indicated mean effective pressure (IMEP)) and high (limited by pre-ignition) operating loads were decreased; however, it was found that the overall operating range was increased. Results also showed that for a given operating load, with the increase of CO2 percentage in the fuel, the brake thermal efficiency was decreased, and the flame initiation and combustion durations were increased. The brake thermal efficiency was decreased from 16.8% to 13.7%, when CO2 was increased from 0% to 40% in methane–CO2 mixture at 8 N·m load. Concerning to emissions, a considerable decrease was noted in nitric oxide, whereas hydrocarbon, carbon monoxide and carbon dioxide emissions were increased, with the increase in CO2 percentage.

scholarly journals Comparative Study of Performance and Emission Characteristics between Spark Ignition Engine and Homogeneous Charge Compression Ignition Engine (HCCI)

2017 ◽  
Vol 12 (4) ◽  
pp. 102-110
Author(s):  
Nahedh Mahmood Ali
Keyword(s):  
Homogeneous Charge Compression Ignition ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Compression Ignition ◽  
Si Engine ◽  
Compression Ignition Engine ◽  
Promising Alternative ◽  
Performance And Emission ◽  
Hcci Engine ◽  
Homogeneous Charge

Many researchers consider Homogeneous Charge Compression Ignition (HCCI) engine mode as a promising alternative to combustion in Spark Ignition and Compression Ignition Engines. The HCCI engine runs on lean mixtures of fuel and air, and the combustion is produced from the fuel autoignition instead of ignited by a spark. This combustion mode was investigated in this paper. A variable compression ratio, spark ignition engine type TD110 was used in the experiments. The tested fuel was Iraqi conventional gasoline (ON=82). The results showed that HCCI engine can run in very lean equivalence ratios. The brake specific fuel consumption was reduced about 28% compared with a spark ignition engine. The experimental tests showed that the emissions concentrations were reduced by 91.27% for NOx, 85.99% for CO, 78.91% for CO2, and 83.56% for unburned hydrocarbons compared to the SI engine. HCCI engine produced little noise with about 26.68% less than SI engine.

scholarly journals Ethanol/Gasoline Blends as Alternative Fuel in Last Generation Spark-Ignition Engines: A Review on CO and HC Engine Out Emissions

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 4034
Author(s):  
Paolo Iodice ◽  
Massimo Cardone
Keyword(s):  
Physicochemical Properties ◽  
Alternative Fuels ◽  
Experimental Studies ◽  
Alternative Fuel ◽  
Exhaust Emissions ◽  
Spark Ignition ◽  
Operating Conditions ◽  
Spark Ignition Engine ◽  
Spark Ignition Engines ◽  
The Impact

Among the alternative fuels existing for spark-ignition engines, ethanol is considered worldwide as an important renewable fuel when mixed with pure gasoline because of its favorable physicochemical properties. An in-depth and updated investigation on the issue of CO and HC engine out emissions related to use of ethanol/gasoline fuels in spark-ignition engines is therefore necessary. Starting from our experimental studies on engine out emissions of a last generation spark-ignition engine fueled with ethanol/gasoline fuels, the aim of this new investigation is to offer a complete literature review on the present state of ethanol combustion in last generation spark-ignition engines under real working conditions to clarify the possible change in CO and HC emissions. In the first section of this paper, a comparison between physicochemical properties of ethanol and gasoline is examined to assess the practicability of using ethanol as an alternative fuel for spark-ignition engines and to investigate the effect on engine out emissions and combustion efficiency. In the next section, this article focuses on the impact of ethanol/gasoline fuels on CO and HC formation. Many studies related to combustion characteristics and exhaust emissions in spark-ignition engines fueled with ethanol/gasoline fuels are thus discussed in detail. Most of these experimental investigations conclude that the addition of ethanol with gasoline fuel mixtures can really decrease the CO and HC exhaust emissions of last generation spark-ignition engines in several operating conditions.

Strategies to improve the performance of a spark ignition engine using fuel blends of biogas with natural gas, propane and hydrogen

2018 ◽  
Vol 43 (46) ◽  
pp. 21592-21602 ◽  
Author(s):  
Juan P. Gómez Montoya ◽  
Andrés A. Amell ◽  
Daniel B. Olsen ◽  
German J. Amador Diaz
Keyword(s):  
Natural Gas ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Fuel Blends

scholarly journals Assessing the Theoretical Prospects of Bioethanol Production as a Biofuel from Agricultural Residues in Bangladesh: A Review

2020 ◽  
Vol 12 (20) ◽  
pp. 8583
Author(s):  
Monirul Islam Miskat ◽  
Ashfaq Ahmed ◽  
Hemal Chowdhury ◽  
Tamal Chowdhury ◽  
Piyal Chowdhury ◽  
...  
Keyword(s):  
Crop Residues ◽  
Energy Generation ◽  
Alternative Fuel ◽  
Spark Ignition ◽  
Agricultural Residues ◽  
Spark Ignition Engine ◽  
Bioethanol Production ◽  
Comparable Performance ◽  
Performance Results

This study reviewed the aspects of the production of bioethanol from the agricultural residues available in Bangladesh. The crop residues such as rice, wheat, sugarcane, corn, cotton, jute, and sugarcane have great potential for energy generation in a sustainable and eco-friendly way in Bangladesh, as these residues are available in large quantities. Bioethanol is an alternative fuel to gasoline that provides comparable performance results. Bioethanol from these residues can be used for transportation purposes, as it does not require any major modifications to the spark-ignition engine configuration when using E5 blend (5% Ethanol mixed with 95% of the gasoline). In Bangladesh, approximately 65.36 Mt of agricultural residues are available from the major crops, from which 32 Mt bioethanol can be generated. This study is expected to provide useful concise data with regards to the beneficial utilization of agricultural residues for bioethanol production in Bangladesh.

The Lean Mixture Operational Limits of a Spark Ignition Engine When Operated on Fuel Mixtures

2008 ◽  
Vol 131 (1) ◽  
Author(s):  
Hailin Li ◽  
Ghazi A. Karim ◽  
A. Sohrabi
Keyword(s):  
Engine Performance ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Si Engine ◽  
Lean Mixture ◽  
Si Engines ◽  
Unstable Combustion ◽  
Fuel Mixtures ◽  
Traditional Approaches ◽  
Combustion Processes

The operation of spark ignition (SI) engines on lean mixtures is attractive, in principle, since it can provide improved fuel economy, reduced tendency to knock, and extremely low NOx emissions. However, the associated flame propagation rates become degraded significantly and drop sharply as the operating mixture is made increasingly leaner. Consequently, there exist distinct operational lean mixture limits beyond which satisfactory engine performance cannot be maintained due to the resulting prolonged and unstable combustion processes. This paper presents experimental data obtained in a single cylinder, variable compression ratio, SI engine when operated in turn on methane, hydrogen, carbon monoxide, gasoline, iso-octane, and some of their binary mixtures. A quantitative approach for determining the operational limits of SI engines is proposed. The lean limits thus derived are compared and validated against the corresponding experimental results obtained using more traditional approaches. On this basis, the dependence of the values of the lean mixture operational limits on the composition of the fuel mixtures is investigated and discussed. The operational limit for throttled operation with methane as the fuel is also established.

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