scholarly journals Insights into Stoichiometric and Lean Combustion Phenomena of Gasoline–Butanol, Gasoline–Ethanol, Iso-Octane–Butanol, and Iso-Octane–Ethanol Blends in an Optical Spark-Ignition Engine

2017 ◽  
Vol 189 (6) ◽  
pp. 1013-1060 ◽  
Author(s):  
P. G. Aleiferis ◽  
M. K. Behringer ◽  
D. OudeNijeweme ◽  
P. Freeland
2021 ◽  
Vol 239 ◽  
pp. 114224
Author(s):  
Hyunwook Park ◽  
Junsun Lee ◽  
Narankhuu Jamsran ◽  
Seungmook Oh ◽  
Changup Kim ◽  
...  

1998 ◽  
Author(s):  
G. Lepperhoff ◽  
K. Hentschel ◽  
P. Wolters ◽  
W. Neff ◽  
K. Pochner ◽  
...  

2011 ◽  
Vol 84-85 ◽  
pp. 269-273
Author(s):  
Fu Bing You ◽  
Xin Tang Zhang ◽  
Zhi Xiang Pan ◽  
Ge Sheng Li

Hydrous-ethanol is reformed to hydrogen-rich mixture gas which is an excellent fuel for engines. The advantages of this approach are that fossil fuel consumption and CO2 emissions are reduced, and the waste heat from engine exhaust can be used as energy source for hydrous-ethanol evaporating and reforming. The experiment is carried out on a gasoline engine as primary engine with only modest changes. The results indicate that the hydrogen-rich mixture gas allows operation at much higher compression ratio due to its intrinsic octane number which could contribute to the power performance, and the NOx, CO, THC emissions are reduced remarkably because of lean combustion realized in the cylinder.


Author(s):  
A. Manivannan ◽  
R. Ramprabhu

In the development of internal combustion engines, there has been a continuous effort to reduce fuel consumption and exhaust emissions. Lean combustion is a preferred concept for reducing exhaust emissions for meeting stringent emission standards. However lean combustion is associated with increased cycle-by-cycle combustion variation due to combustion instability. The combustion stability under lean mixture conditions could be improved through enhancement of flow characteristics. Effect of engine variables on lean combustion of Spark Ignition (SI) engine is presented, including combustion chamber and inlet port configuration, and ignition system. Use of pre-chamber for lean combustion is one of the feasible method to achieve stable ignition and quick flame propagation. This paper highlights and compares status of various research works carried out in the area of lean burn engines. A critical analysis of reported experimental data is presented in order to substantiate use of lean combustion in SI engine.


Bio-fuels have been made vital developments from past decades, in which bio-petrol plays a major role in SI engines. Developments in petrol-ethanol blends have been made to improve the efficiency of SI engine. Air preheated is supported widely in preheating of intake air. To improve efficiency and to reduce emission, air preheated is used in many systems. SI engines are used in automobiles, motor cycles, aircrafts, motorboats and portable small engine. In this work, investigations have been done in the SI engine which intakes preheated air-fuel mixture and various blends of ethanol petrol fuel is used as working fuel. Emission tests are done by exhaust gas analyzer to compare the emissions of different fuels.


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