The Performance of a Spark-Ignited Stratified-Charge Two Stroke Engine Operating on a Kerosine Based Aviation Fuel

Falkowski, David T.; Abata, Duane L.; Cho, Peck

doi:10.4271/972737

Cited by 19 publications

(7 citation statements)

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“…More attentions have been focused on two-stroke SI HF-APEs for the last decades [7][8][9][10][11][12][13] because CI engines with lower power/weight ratios were more difficult than SI engines to meet the design requirements of Unmanned Aerial Vehicle (UAV) and Light Sport Aircraft (LSA) manufacturers [10]. Falkowski et al examined the feasibility of JP-5 using a two-stroke SI direct injection engine, and reported that the performance characteristics were similar to that with gasoline in terms of torque and power output at low engine speeds and low engine loads [12]. High performance SI HF-APEs burning heavy fuels (i.e., kerosene and diesel) have been widely applied for the ground fleet and UAV in the military [13,14].…”

Section: Abbreviationsmentioning

confidence: 99%

Comparative study of combustion and emissions of kerosene (RP-3), kerosene-pentanol blends and diesel in a compression ignition engine

et al. 2017

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Section: Abbreviationsmentioning

confidence: 99%

Comparative study of combustion and emissions of kerosene (RP-3), kerosene-pentanol blends and diesel in a compression ignition engine

et al. 2017

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“…The effect of heating heavy fraction fuels in the SI engine has been previously studied in carburettor and injection FSS´s. Research [11][12][13][14][15][16][17][18][19][20] focuses mainly on reducing the hazardous components that are contained within exhaust gases, solving cold start problems, and reducing the engine's fuel consumption rate, as well as on the combustion of various AFM's in the engine's cylinder. In addition, the use of heat energy in different heat exchangers (HEX) is something that has been studied in the past, but the research has focused more on the recovery of heat energy from exhaust gases and the study of cooled exhaust gases [21][22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Air-Fuel Mixture Temperatures with Light and Heavy Fuels for Effective Spark Ignition Engine Work

Raide

Ilves

Olt

2021

AiMT

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This research resulted from military interest in finding methods to provide distributed electricity generation in order to support comprehensive state defence measures. The aim of the study was to investigate the effect of a heated air-fuel mixture on the combustion process of a spark ignition (SI) engine, and to highlight the maximum temperatures to be applied to air-fuel mixtures with different fuel fractions in order to avoid any detonation of the fuel mixture in the engine. Tests were carried out with a petrol engine generator (GENSET) so that an investigation could be conducted into the effect of the air-fuel mixture on the engine’s combustion. It turned out that heating the air-fuel mixture permits the use of heavier fraction fuels than engine petrol in SI engines does, including diesel fuel and biodiesel fuel, and also that the use of heavy fraction fuels in SI engines is effective mainly under low and middle loads.

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“…Applying it to two-stroke SI heavy fuel engines can guarantee the proper mixture mass fraction around the spark plug, which allows the engines work normally under low load without external assistance at low ambient temperatures (La et al , 2012). Falkowski et al (1997) studied the feasibility of burning Jet Propulsion 5 fuel (JP5) in a two-stroke engine with DI stratified combustion. The performance of JP5 engine was compared with that of burning gasoline.…”

Section: Introductionmentioning

confidence: 99%

Study of low load performance on a two-stroke direct injection spark ignition aero-piston engine fuelled with diesel

Liu

Wei

2020

AEAT

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Purpose The purpose of this paper is to investigate power performance, economy and hydrocarbons (HC)/carbon monoxide (CO) emissions of diesel fuel on a two-stoke direct injection (DI) spark ignition (SI) engine. Design/methodology/approach Experimental study was carried out on a two-stroke SI diesel-fuelled engine with air-assisted direct injection, whose power performance and HC/CO emissions characteristics under low-load conditions were analysed according to the effects of ignition energy, ignition advance angle (IAA), injection timing angle and excess-air-ratio. Findings The results indicate that, for the throttle position of 10%, a large IAA with adequate ignition energy effectively increases the power and decrease the HC emission. The optimal injection timing angle for power and fuel consumption is 60° crank angle (CA) before top dead centre (BTDC). Lean mixture improves the power performance with the HC/CO emissions greatly reduced. At the throttle position of 20%, the optimal IAA is 30°CA BTDC. The adequate ignition energy slightly improves the power output and greatly decreases HC/CO emissions. Advancing the injection timing improves the power and fuel consumption but should not exceed the exhaust port closing timing in case of scavenging losses. Burning stoichiometric mixture achieves maximum power, whereas burning lean mixture obviously reduces the fuel consumption and the HC/CO emissions. Practical implications Gasoline has a low flash point, a high-saturated vapour pressure and relatively high volatility, and it is a potential hazard near a naked flame at room temperature, which can create significant security risks for its storage, transport and use. The authors adopt a low volatility diesel fuel for all vehicles and equipment to minimise the number of different devices using various fuels and improve the potential military application safety. Originality/value Under low-load conditions, the two stroke port-injected SI engine performance of burning heavy fuels including diesel or kerosene was shown to be worse than those of gasoline. The authors have tried to use the DI method to improve the performance of the diesel-fuelled engine in starting and low-load conditions.

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The Performance of a Spark-Ignited Stratified-Charge Two Stroke Engine Operating on a Kerosine Based Aviation Fuel

Cited by 19 publications

References 1 publication

Comparative study of combustion and emissions of kerosene (RP-3), kerosene-pentanol blends and diesel in a compression ignition engine

Comparative study of combustion and emissions of kerosene (RP-3), kerosene-pentanol blends and diesel in a compression ignition engine

Air-Fuel Mixture Temperatures with Light and Heavy Fuels for Effective Spark Ignition Engine Work

Study of low load performance on a two-stroke direct injection spark ignition aero-piston engine fuelled with diesel

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