Fundamental Study on Effects of Residual Fuel Droplets on Flame Propagation in SI Engines

2003 ◽  
Author(s):  
Hiroshi Nomura ◽  
Toyohiro Hamasaki ◽  
Ikue Kawasumi ◽  
Yasushige Ujiie ◽  
Jun'ichi Sato
Keyword(s):  
Flame Propagation ◽  
Fundamental Study ◽  
Fuel Droplets ◽  
Si Engines

On the use of a tabulation approach to model auto-ignition during flame propagation in SI engines

2011 ◽  
Vol 88 (12) ◽  
pp. 4968-4979 ◽  
Author(s):  
Vincent Knop ◽  
Jean-Baptiste Michel ◽  
Olivier Colin
Keyword(s):  
Flame Propagation ◽  
Auto Ignition ◽  
Si Engines

scholarly journals Fundamental Study on Combustion Improvement by Mixture-Flow in Natural Gas-Fueled Lean-Burn SI Engines

2000 ◽  
Vol 35 (4) ◽  
pp. 254-259
Author(s):  
Daisuke Segawa ◽  
Toshikazu Kadota ◽  
Masashi Ohno ◽  
Takeshi Mizobuchi ◽  
Katsumi Kataoka ◽  
...  
Keyword(s):  
Natural Gas ◽  
Lean Burn ◽  
Mixture Flow ◽  
Fundamental Study ◽  
Si Engines ◽  
Gas Fueled

scholarly journals Acceleration Effects of Fuel Droplets on Flame Propagation in Partially-Prevaporized Fuel Spray

2004 ◽  
Vol 70 (697) ◽  
pp. 2441-2448
Author(s):  
Toyohiro HAMASAKI ◽  
Hiroshi NOMURA ◽  
Yasushige UJIIE ◽  
Jun'ichi SATO
Keyword(s):  
Flame Propagation ◽  
Fuel Spray ◽  
Fuel Droplets

Investigation of a Novel Fuel Injection Technology Aimed to Reduce Cold-Start Emissions in SI Engines

2002 ◽  
Author(s):  
Brian T. Reese ◽  
Yann G. Guezennec ◽  
Miodrag Oljaca
Keyword(s):  
Fuel Injection ◽  
Cold Start ◽  
Operating Conditions ◽  
The Novel ◽  
Fuel Injector ◽  
Si Engine ◽  
Fuel Droplets ◽  
Si Engines ◽  
Atomization Characteristics ◽  
Injection Technology

A novel fuel atomization device (Nanomiser™) was evaluated under laboratory conditions with respect to its ability to reduce SI engine cold-start hydrocarbon emissions. First, comparisons between the level of atomization using the conventional, pintle-type fuel injector and the novel atomizer were carried out using flow visualization in a spray chamber and particle size distribution. The novel atomizer is capable of producing sub-micron fuel droplets, which form an ultra-fine mist with outstanding non-wetting characteristics. To capitalize on these atomization characteristics, this device was compared to a conventional fuel injector in a small, two-cylinder, SI engine under a number of operating conditions. Results show a slightly enhanced combustion quality and lean limit under warm operating conditions and a dramatic reduction in unburned HC emission under cold operating conditions, with cold emissions with the Nanomiser™ matching those with a conventional injector under fully warm conditions.

scholarly journals Study experimental of flame-spread rate and spread limit distance of bio-solar droplets in microgravity combustion

2018 ◽  
Vol 197 ◽  
pp. 08006 ◽  
Author(s):  
Laila Fitriana ◽  
Bawono Widyo Gumelar ◽  
Herman Saputro ◽  
Tutuko Firdani ◽  
Riyadi Muslim ◽  
...  
Keyword(s):  
Flame Propagation ◽  
Flame Spread ◽  
Combustion Engine ◽  
Microgravity Condition ◽  
Free Fall ◽  
Spray Combustion ◽  
Spread Rate ◽  
Stable Combustion ◽  
Fuel Droplets ◽  
Flame Spread Rate

The most important issues in spray combustion science are how to understand the mechanism of the combustion of liquid fuel spray, especially in the flame-spread phenomenon. In spray combustion, combustion is the existence of the group is very important in order to obtain the stable combustion. Therefore, the flame spread among fuel droplets affects the occurrence of stable combustion in the spray combustion engine. This study was focused on phenomenon on diesel combustion engines. This research was conducted to study the behavior of flame spread rate of flame spread and limit the distance of bio-diesel liquid droplets. This research method was used experimental research. Microgravity condition was Obtained through the free fall tower with the height of the tower used is 6 m. Observed droplets suspended was placed on SiC fibers with different distance and droplet size 1 mm. This study observed Also the influence of the flame propagation direction of the burning droplet to the next burning droplets that lies in the direction and perpendicular to the direction of the flame propagation. The results showed that the bio-diesel fuel droplet Igniter (I) could burn next droplet (A)at a distance (S/d0) = 8.

scholarly journals Effect of Sisal Nanoparticles on Single Cylinder Spark Ignition Engine Combustion

2020 ◽  
Vol 8 (6) ◽  
pp. 1027-1032
Keyword(s):  
Flame Propagation ◽  
Combustion Process ◽  
Fuel Mixture ◽  
Spark Ignition ◽  
Combustion Efficiency ◽  
Spark Ignition Engine ◽  
Single Cylinder ◽  
Engine Combustion ◽  
Si Engines ◽  
Propagation Velocities

Turbulence is an important parameter to be considered for effective combustion inside a cylinder. Heat transfer inside the cylinder affects the combustion process. Insufficient turbulence leads to incomplete combustion, resulting in pollution. Effective flame propagation leads to higher combustion rates in SI engines which in turn requires enough turbulence. Effective combustion efficiency can be achieved through higher flame propagation velocities. In the present work an attempt has been made to enhance the turbulence inside the cylinder of a single cylinder spark ignition engine by injecting solid nanoparticles into the air fuel mixture.

Effects of pressure on flame propagation in a premixture containing fine fuel droplets

2007 ◽  
Vol 31 (2) ◽  
pp. 2133-2140 ◽  
Author(s):  
Hiroshi Nomura ◽  
Ikue Kawasumi ◽  
Yasushige Ujiie ◽  
Jun’ichi Sato
Keyword(s):  
Flame Propagation ◽  
Fuel Droplets
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