2022
DOI: 10.1177/14680874221086609
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Influence of tumble and TKE on combustion, fuel economy, and emissions of a single cylinder motorcycle engine

Abstract: The impact of gasoline engines on improving fuel consumption and reducing emissions has received increasing attention around the world, and emissions regulations have become stricter. However, complex techniques in engine improvement increase costs. The purpose of this study is to develop or improve the design of the intake geometry without additional cost to improve the engine thermal efficiency, thereby improving fuel economy and emissions. In this study, emissions and fuel consumption of a 125 c.c. commerci… Show more

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Cited by 3 publications
(3 citation statements)
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“…This mixture conditions combining with tuning technique allows the engine to operate with a limited temperature of 973.15 K for exhaust gas and a limit of 3 bar/deg of pressure rate to avoid knocking. 21 Specifically, in this study, the limit of AFR for the SSP engine was 11.50, while it could be extended to a maximum of 12.50 for the TSP engine after tuning without facing knocking combustion. Accordingly, another case was added to this study for evaluation, in which the TSP engine was operated at a relatively leaner condition, with an AFR of 12.50, referred to as LTSP.…”
Section: Experimental Studymentioning
confidence: 77%
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“…This mixture conditions combining with tuning technique allows the engine to operate with a limited temperature of 973.15 K for exhaust gas and a limit of 3 bar/deg of pressure rate to avoid knocking. 21 Specifically, in this study, the limit of AFR for the SSP engine was 11.50, while it could be extended to a maximum of 12.50 for the TSP engine after tuning without facing knocking combustion. Accordingly, another case was added to this study for evaluation, in which the TSP engine was operated at a relatively leaner condition, with an AFR of 12.50, referred to as LTSP.…”
Section: Experimental Studymentioning
confidence: 77%
“…The boundaries and initial conditions were acquired by the results of a one-dimensional (1D) engine model, which was validated by the experimental data from the previous work. 21 Table 5 shows the detailed boundary conditions and operating conditions for the three cases simulated in this study. Except for the two main configurations, which are SSP and TSP, the relatively leaner mixture condition of TSP, namely, LTSP, was also simulated to validate the experiment.…”
Section: Numerical Setupmentioning
confidence: 99%
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