Results 21 to 30 of about 15,258 (170)

METHOD OF CALCULATION OF AIR-FUEL MIXTURE MINIMUM IGNITION ENERGY IN GAS ENGINE [PDF]

Avtomobilʹnyj Transport (Harʹkov), 2013
The improved method of minimum ignition energy calculation in a gas engine that takes into account radiation energy losses in a flame kernel has been presented. Comparison of calculation results using this model with experimental data has been performed.
Abramchuk, F., Kabanov, A., Shvydkyi, D.
doaj  

Study on the significant effects of ignition energy and gas volume fraction on gas explosion pressure and flame propagation speed

Meikuang Anquan
The maximum flame propagation speed, the peak pressure and the pressure rise rate of gas explosion were studied under the influence of two factors of ignition energy and gas volume fraction, by using the orthogonal experimental method in a closed ...
Liang ZHANG, Fangfang LAI, Jingde XU
doaj   +1 more source

Mathematical modelling of sparkplug ignition of a coal-dust monodisperse suspension in a methane-air mixture

MATEC Web of Conferences, 2017
The paper provides the numerical simulation of a coal-dust monodisperse suspension sparkplug ignition in a methane-air mixture. The methane-air mixture is not stoichiometric.
Krainov Alexey Yu., Moiseeva Ksenia M.
doaj   +1 more source

Numerical simulation of drop weight impact sensitivity evaluation criteria for pressed PBXs

Defence Technology, 2023
A thorough understanding of drop-weight impacted responses for polymer-bonded explosives (PBXs) is significant to evaluate their impact sensitivity. The characteristics of the drop-weight impacted pressed PBXs including deforming, fracturing, forming a ...
Hong-zheng Duan, Yan-qing Wu, Kun Yang, Feng-lei Huang   +3 more
doaj   +1 more source

Experimental Study on Ignition Time of Industrial Electronic Detonator Ignition Head under Different Ignition Voltages

Gaoya wuli xuebao
In response to the practical engineering problem that the firing capacitor of electronic detonators may lose power after being impacted, which subsequently lead to insufficient firing energy and unreliable detonation, the firing time of metal bridge and ...
Jiajia GUAN, Hongwei LI, Lin YANG, Hao LIANG, Yanhong LIU, Shaobao LU, Fuyuan ZHU   +6 more
doaj   +1 more source

Investigation on The effect of Airgap Distance for Ignition Coils Using Finite Element Methods

Journal of New Results in Science, 2016
– This study is related to the ignition coil which produces spark energy to ignite fuel mixture in cylinder of internal combustion motor. There are some problems that is commonly seen in automotive ignition coil.
Ugur Demir, Mustafa Caner Akuner
doaj  

Ignition processes and characteristics of charring conductive polymers with a cavity geometry in precombustion chamber for applications in micro/nano satellite hybrid rocket motors

Defence Technology
The arc ignition system based on charring polymers has advantages of simple structure, low ignition power consumption and multiple ignitions, which bringing it broadly application prospect in hybrid propulsion system of micro/nano satellite.
Zhiyuan Zhang, Hanyu Deng, Wenhe Liao, Bin Yu, Zai Yu   +4 more
doaj   +1 more source

Analysis of hohlraum energetics of the SG series and the NIF experiments with energy balance model

Matter and Radiation at Extremes, 2017
The basic energy balance model is applied to analyze the hohlraum energetics data from the Shenguang (SG) series laser facilities and the National Ignition Facility (NIF) experiments published in the past few years.
Guoli Ren, Jie Liu, Wenyi Huo, Ke Lan
doaj   +1 more source

Robust and ultralow-energy-threshold ignition of a lean mixture by an ultrashort-pulsed laser in the filamentation regime

Light: Science & Applications, 2021
Laser ignition (LI) allows for precise manipulation of ignition timing and location and is promising for green combustion of automobile and rocket engines and aero-turbines under lean-fuel conditions with improved emission efficiency; however, achieving ...
Hongwei Zang, Helong Li, Wei Zhang, Yao Fu, Shanming Chen, Huailiang Xu, Ruxin Li   +6 more
doaj   +1 more source

Study on Cold Start of Methanol Direct Injection Engine Based on Laser Ignition

Energies
Methanol has garnered attention as a promising alternative fuel for marine engines due to its high octane number and superior knock resistance. However, methanol-fueled engines face cold-start challenges under low-temperature conditions.
Xiaoyu Liu, Jie Zhu, Zhongcheng Wang
doaj   +1 more source