The effects of combustion duration on residual gas, effective release energy and engine power of motorcycle engine at full load

Khoa, Nguyen Xuan; Kang, Young-Seok

doi:10.1016/j.egypro.2019.01.429

Cited by 7 publications

(7 citation statements)

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“…Figure (6) shows the relationship between pump discharge and the actual hydraulic power to operate using Gasoline at engine speed 3500 rpm Where results guarantee that the relationship between pump discharge and actual power is a quadratic relationship. As the pump discharge increases, The actual hydraulic power increases.…”

Section: Pump Indicators Power and Discharge Of The Pump Using Gasolinementioning

confidence: 86%

“…Figure (6) shows the relationship between pump discharge and power and pump pressure for gasoline operating at engine speed (3500 rpm) Where results guarantee the relationship between pressure and pump discharge is inverse, as the higher the pressure, the lower the pump discharge. Maximum discharge using gasoline (32.38 m3/h) at pressure (0.2bar) and minimum discharge (5.66 m3/h) at pressure (1.8 bar).…”

Section: Pump Indicators Power and Discharge Of The Pump Using Gasolinementioning

confidence: 90%

“…In the burning cycle, the term of ignition is a vital boundary that decides the ideal burning interaction. Assuming that the ignition time is too short, the fuel won't be totally singed, so the substance energy of the fuel can't be totally changed over into heat energy, or when the burning time is too lengthy, more thermal energy is lost because of a more drawn out heat move time to the chamber and cylinder [6]. The authors led an exhaustive survey of gaseous petrol as a transportation fuel which is viewed as a promising elective fuel.…”

Section: Introductionmentioning

confidence: 99%

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Technical and Economic Indicators for Operating Irrigation Pump using Natural Gas

2022

BSCR

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This paper presents the experimental for the types of mixers used in mixing natural gas with air to operate the irrigation pump to save energy, many of measurements were carried 2021 year in workshops of Agricultural Engineering Department, Faculty of Agriculture, Ain Shams University, Egypt. Used engine single-cylinder, air-cooled. A new pump with a discharge diameter of 2 inches, which was an Egyptian manufacture. Several types of mixers were manufactured to mix natural gas with air before entering the engine. Using iron pipes of different diameters, three types of mixers were used Mixer with a perforated inner tube of 8, 10. 12cm (L8, L10, L12) . selected determine the four shaft speeds (1750, 2300, 2900 and 3500 rpm) using the engine speed measuring device. The results here dealt with study the analysis of technical indicators for the types of mixers used in mixing natural gas with air to operate the irrigation pump. where the actual power (Braking power) is superior to all types when operating with gasoline was (3.07 kW) A comparison with the use of natural gas, where the mixer type (L10) (2.69 kW) was 10% less than gasoline. the lowest Specific fuel consumption (s. fc) for gasoline was (219.025 gm/Kw.h) at an engine speed of (2900 rpm), The lowest (S.fc) for the types of mixers was the mixer (L10) was (340.144 gm/Kw.h) at an engine speed of (2900 rpm),The highest pump discharge was with the L8 mixer (32.98 m3/h), an increase of 1.8% over gasoline at an engine speed of (3500 rpm), The highest actual hydraulic power with L10 type mixer compared to other type L mixers (0.782 kW) was 12 % lower than that of gasoline. As for the economic indicators the lowest Internal Rate of Return (IRR) was Gasoline ( 0.44), and the highest (IRR) when carrying the mixer type (L8) was (0.60) an increase of 26.6 % over gasoline. the lowest payback period was the type of mixer (L8) was (1.66 year), and the highest payback period When the Gasoline it was (2.27 year).

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Section: Pump Indicators Power and Discharge Of The Pump Using Gasolinementioning

confidence: 86%

Section: Pump Indicators Power and Discharge Of The Pump Using Gasolinementioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

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Technical and Economic Indicators for Operating Irrigation Pump using Natural Gas

2022

BSCR

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“…The advantage can be partially explained by the increased combustion duration previously observed with the injector which allows enough time to completely burn the fuel and extract the energy. 39 The higher flow rate injectors (injectors 2 and 3) show almost negligible differences between them at medium and high loads, while at low load the difference between injectors is higher than 1.2 g/kWh (less than 1% of the total fuel consumption). In terms of the effect of the SR, the literature indicates that generally a higher SR improves the fuel consumption, 40,41 but for the carried out tests this behavior was not confirmed.…”

Section: Emissions and Performancementioning

confidence: 95%

Evaluation of different injectors-swirl configurations on combustion and emissions characteristics in a medium-duty compression ignition diesel engine

Martı́nez

Monsalve‐Serrano

Villalta

et al. 2022

International Journal of Engine Research

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To regulate emissions and reach efficiency values closer to theoretical limits in heavy and medium-duty vehicles the incremental improvement of the combustion engine is necessary as other options, like electrical powertrains, remain in the early stages of their development for such load demands. The objective of this work is to evaluate the effect on emissions and performance of three different injectors – with two flow rates (1300 and 1500 cm3/min) and three different hole numbers (7, 9, and 10) – coupled with two levels of swirl ratio (1.81 and 1.05) under experimental stationary conditions. Following this, a merit function strategy is developed and used to determine the hardware combination that provides the best advantage regarding the tradeoff between emissions and fuel consumption based on criteria that considers prospective regulations and the current performance of the hardware. The results obtained from this work indicate that a low flowrate injector, coupled with a cylinder-head that achieves a swirl ratio of 1.81 performs the best among the tested hardware combinations, providing reductions of at least 2 g/kWh of indicated specific fuel consumption while NOx emissions are comparable with the other tested hardware combinations and soot emissions have almost negligible values (under 6 mg/kWh for all operating conditions).

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“…This makes it clear, at low load conditions, the high temperature of a suitable iEGR rate helps engines achieve superior homogeneous air-fuel mixtures and combustion processes [85]. However, a high eEGR rate can cause charge dilution, increasing the incomplete combustion rate and low burning conditions and decreasing thermal efficiency [86]. When an engine is idling, a high iEGR rate can effectively reduce cycle-to-cycle variation and improve combustion stability.…”

Section: The Effect Of Iegr On Engine Performance and Emission Charac...mentioning

confidence: 99%

A Review of the External and Internal Residual Exhaust Gas in the Internal Combustion Engine

Khoa

2022

Energies

Self Cite

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Efficiency and emission reduction are the primary targets of internal combustion engine research due the large number of vehicles in operation and the impact of emissions-related pollution on human and ecosystem health. Harmful components of engine exhaust gases include nitrous oxides (NOx), carbon dioxide, hydrocarbons, and particulate matter. NOx emissions in particular are associated with significant health threats. The recirculation of exhaust gases can reduce NOx emissions and improve engine efficiency when combined with other advanced techniques. On the other hand, the residual exhaust gas also effects on the quality of lubricating engine oil and therefore causes an increase in engine piston ring wear. In this review paper, the effects of external and internal exhaust gas recirculation on the performance and emission characteristics of diesel, gasoline, and alternative fuel engines are summarized and discussed in detail. Because it is difficult to estimate the internal residual exhaust gas in the combustion engine by doing experiments. This review paper introduces control strategies and prediction methods for internal and external exhaust gas recirculation.

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The effects of combustion duration on residual gas, effective release energy and engine power of motorcycle engine at full load

Cited by 7 publications

References 0 publications

Technical and Economic Indicators for Operating Irrigation Pump using Natural Gas

Technical and Economic Indicators for Operating Irrigation Pump using Natural Gas

Evaluation of different injectors-swirl configurations on combustion and emissions characteristics in a medium-duty compression ignition diesel engine

A Review of the External and Internal Residual Exhaust Gas in the Internal Combustion Engine

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