Results 11 to 20 of about 51,359 (292)
Chaotic combustion in spark ignition engines [PDF]
Chaos, Solitons & Fractals, 2003 We analyse the combustion process in a spark ignition engine using the experimental data of an internal pressure during the combustion process and show that the system can be driven to chaotic behaviour. Our conclusion is based on the observation of unperiodicity in the time series, suitable stroboscopic maps and a complex structure of a reconstructed ...
Wendeker, Mirosław +3 more
openaire +5 more sources
Combustion Characteristics and Laminar Flame Speed of Premixed Ethanol-Air Mixtures with Laser-Induced Spark Ignition [PDF]
, 2018 Laser-induced spark-ignition (LISI) has an advanced ignition technique with a few benefits over spark ignition. In this study, flame morphology, laminar flame characteristics and combustion characteristics of premixed anhydrous ethanol and air mixtures ...
Badawy +24 more
core +1 more source
Energies, 2020 The characteristics of spark ignition with a constant volume combustion chamber (CVCC) is evaluated for the efficiency of capacitive-assisted ignition (CAI), such as spark kernel and flame growth. The conventional spark method and matching effect of high
Kwonse Kim, Jaeyoung Han, Seokyeon Im
doaj +1 more source
Acta Scientiarum: Technology, 2014 An efficient combustion depends on many factors, such as injection, turbulence and ignition characteristics. With the improvement of internal combustion engines the turbulence intensity and internal pressure have risen, demanding more efficient and ...
Bruno Santos Goulart +3 more
doaj +1 more source
Spark Plug with Integrated Chamber
MATEC Web of Conferences, 2018 Spark plug with integrated chamber increases the quality of ignition of homogenous mixture in the engine cylinder. Very small amount of burning mixture bursts (outflows) from chamber (so-called flame jet ignition) which heads into faster initial phase of
Dittrich Aleš, Beroun Stanislav
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The Effect of Spark Timing on the Spark Ignition Engine Performance
Tikrit Journal of Engineering Sciences, 2011 In this work the effect of spark timing on the spark ignition engines is investigated by computer simulation and experimental test for speeds of (1500,2000,2500,3000 and 3500)rpm at spark timing of (20o,30o,40o,50o and 60o) before TDC for each speed ...
Rafeq Ahmad Khalefa
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Energies, 2020 A spark plug calorimeter is introduced for quantifying the thermal energy delivered to unreactive gas surrounding the spark gap during spark ignition. Unlike other calorimeters, which measure the small pressure rise of the gas above the relatively high ...
Kyeongmin Kim +3 more
doaj +1 more source
Signal Processing of Acoustic Data for Condition Monitoring of an Aircraft Ignition System
Machines, 2022 Degradation of the ignition system can result in startup failure in an aircraft’s auxiliary power unit. In this paper, a novel acoustics-based solution that can enable condition monitoring of an APU ignition system was proposed.
Umair Ahmed, Fakhre Ali, Ian Jennions
doaj +1 more source
Applications in Energy and Combustion Science, 2021 Lean-burn is an attractive concept for reasons of high thermal efficiency and low nitrogen oxide (NOx) emissions, however, successful implementation in spark-ignition (SI) engines turned out to be challenging because of misfire or partial burn caused by ...
Joonsik Hwang +2 more
doaj +1 more source
Energies, 2014 In order to directly control the premixed combustion phasing, a Jet Controlled Compression Ignition (JCCI) for diesel premixed compression ignition systems is investigated.
Qiang Zhang +4 more
doaj +1 more source