Results 21 to 30 of about 30,368 (167)

Numerical Simulation of Ignition of Premixed Air/Fuel Mixtures by Microwave Streamer Discharge [PDF]

IEEE Transactions on Plasma Science, 2019
A subcritical microwave streamer discharge is used to initiate ignition of premixed air/fuel mixture. The streamer is arising on the internal surface of the dielectric tube using a passive vibrator in a single-pulse regime at atmospheric pressure and temperature. The propagation speed of the combustion front in the quartz cylindrical tube filled by the
Mikhail Bulat, Pavel Bulat, Petr Denissenko, Igor Esakov, Lev Grachev, Konstantin Volkov, Igor Volobuev   +6 more
openaire   +2 more sources

Air fuel ratio control for a lean mixture combustion.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1986
If a gasoline engine can be run with a lean air-fuel mixture, a considerable improvement is expected in fuel consumption and in exhaust emissions. Especially in the case of automobile use, this effect is remarkable because of a peculiarity in the high frequency usage of engines operating under a partial load.
Shigeyuki MORITA, Takeshi TAKIYAIMA
openaire   +2 more sources

Multi-point ignition of air/fuel mixture by the initiated subcritical streamer discharge [PDF]

Acta Astronautica, 2022
Abstract An experimental study of ignition and combustion of a propane/air mixture is carried out, and the efficiency of two ignition systems is compared. The first one is the traditional technology with conventional spark plugs, and the second one is a system with microwave initiated streamer discharges.
Bulat, Pavel, Chernyshov, Pavel, Esakov, Igor, Grachev, Lev, Lavrov, Pavel, Melnikova, Anzhelika, Volkov, Konstantin, Volobuev, Igor   +7 more
openaire   +1 more source

Hydrodynamic effects induced by nanosecond sparks in air and air/fuel mixtures [PDF]

55th AIAA Aerospace Sciences Meeting, 2017
It was found that short and intense energy release in nanosecond sparks can induce hydrodynamic motion of the gas over a long distance of the order of centimeter. The gas motion induces the transport of active species produced by plasma into the surrounding space.
Stepanyan, Sergey, Hayashi, Jun, Laux, Christophe, Pannier, E., Salmon, A., Lovascio, Sara, Stancu, Gabi   +6 more
openaire   +2 more sources

Transient plasma ignition of quiescent and flowing air/fuel mixtures

IEEE Transactions on Plasma Science, 2005
Transient plasmas that exist during the formative phase of a pulse-ignited atmospheric pressure discharge were studied for application to ignition of quiescent and flowing fuel-air mixtures. Quiescent methane-air mixture ignition was studied as a function of equivalence ratio, and flowing ethane-air mixture was studied in a pulse detonation engine (PDE)
null Fei Wang, J.B. Liu, J. Sinibaldi, C. Brophy, A. Kuthi, C. Jiang, P. Ronney, M.A. Gundersen   +7 more
openaire   +3 more sources

Experimental study of the thermochemical treatment of the low-grade coal prior to boiler combustion at coal-fired power station [PDF]

E3S Web of Conferences, 2019
Analysis of the perspectives of the coal fuel for thermal power plants is carried out. The necessity of the experimental study for temperature measurement in the boiler furnace. The results of the experimental study are presented: temperature change over
Yemelianenko Volodymyr, Pertsevyi Vitalii, Zhevzhyk Oleksandr, Potapchuk Iryna, Lutai Oleksandr   +4 more
doaj   +1 more source

WAYS OF INCREASING AIR-FUEL MIXTURE IGNITION RELIABILITY OF GAS ENGINES FROM ELECTRIC DISCHARGE [PDF]

Avtomobilʹnyj Transport (Harʹkov), 2010
The results of the rated estimation of the air-fuel mixture ignition energy of gas engines has been shown. The research of influence of hydrogen additions in different proportion on fuel-air mixture ig-nition process in the gas engine has been carried ...
F. Abramchuk, A. Kabanov, A. Kuzmenko, E. Murtazaev   +3 more
doaj  

Simulation Analysis of Combustion Parameters and Emission Characteristics of CNG Fueled HCCI Engine

Advances in Mechanical Engineering, 2013
The naturally aspirated compressed natural gas (CNG) fueled homogeneous charge compression ignition (HCCI) engine operation region is narrow between heavy knock at rich air-fuel mixture side and misfire at the lean air-fuel mixture side.
P. M. Diaz, N. Austin, K. Maniysundar, D. S. Manoj Abraham, K. Palanikumar   +4 more
doaj   +1 more source

Influence of gas inlet angle on the mixing process in a Venturi mixer

ITM Web of Conferences, 2017
In this paper numerical analysis were performed to investigate the influence of gas inlet angle on mixing process in a Venturi mixer. Performance of an industrial gas engine depends significantly on the quality of mixing air and fuel; therefore, on the ...
Romańczyk Mathias
doaj   +1 more source

The Flame Characteristics of Diesel Fuel Blend with Kepuh (Sterculia Foetida) Biodiesel

Journal of Mechanical Engineering Science and Technology, 2019
Kepuh biodiesel fuel (sterculia foetida) is an alternative fuel that can be used to replace fossil fuel. Diesel fuel is performed to determine the laminar flame speed of combustion and high flame by adding biodiesel kepuh volume of 10%, 20%, 30%.
Dani Hari Tunggal Prasetiyo, Nasrul Ilminnafik, Sallahudin Junus   +2 more
doaj   +1 more source