Analysis of performance, combustion, and emission parameters in a reactivity-controlled combustion ignition (RCCI) engine – an intensive review

Venkatesan, Elumalai Perumal; Pradeepkumar, AR; Murugan, M.; Saravanan, A.; Reddy, M. Sreenivasa; Sree, S. Rama; Meenakshi, S

doi:10.1080/01430750.2022.2056914

Cited by 6 publications

(1 citation statement)

References 45 publications

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“…The fuel injection apparatus has a key role in a powertrain, since engine efficiency, 1 combustion, 2 and pollutant emissions 3 are significantly influenced by the injection schedule and for this reason the injection system further development continues to be a research challenge even for alternative fuels.…”

Section: Introductionmentioning

confidence: 99%

Thermal effects on Common Rail injection system hydraulic performance

Ferrari

Vento

2023

International Journal of Engine Research

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The effect of the fuel temperature on the hydraulic performance of a Common Rail diesel injector has been investigated with an integrated experimental-numerical approach. An experimental campaign pertaining to single and double injections has been performed for fuel tank temperatures ranging from 28°C to 68°C. In general, an augment in the injected mass has been observed for increasing values of the fuel tank temperature. Moreover, the interaction between the main and after injection changes with the temperature and the dwell time threshold for fusion-free injections increases with the fuel temperature. The temperature at the injector nozzle has been measured and compared with that obtained with a thermo-fluid dynamics simple model, showing that the real temperature and the estimated one correlate well. The influence of the fuel temperature on the internal injector dynamic has been explored by means of a validated 1D numerical model of the injector thermo-fluid dynamics. The main direct effect of the temperature variation concerns the needle lift, which reaches a larger peak value for a higher fuel temperature: this explains the general increment in the injected mass and the augmented value of the injection fusion threshold for the main-after injections. The obtained results could allow more accurate open-loop control strategies for the injected mass, which include thermal effects, to be implemented.

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Section: Introductionmentioning

confidence: 99%

Thermal effects on Common Rail injection system hydraulic performance

Ferrari

Vento

2023

International Journal of Engine Research

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Developments in the RCCI engines powered by several alternative fuel types: An overview

Korkmaz,

Yaman,

Yeşilyurt

2024

Proceedings of the Institution of Mechanical Engineers, Part E:

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The perspective on internal combustion engines (ICEs) has changed because of the step-by-step decrease in oil reserves, environmental concerns, and many other reasons. However, the use of these engines will continue in the coming years. The development of ICEs has accelerated in recent years. As a result, studies on systems that can improve performance and reduce pollution in engines are carried out by many researchers. The basis of the studies carried out in this context is the change in the combustion mode. In other words, the emergence of different combustion modes is given importance by researchers. Among these, many studies have been made on the implementation of the reactivity-controlled compression ignition (RCCI) combustion mode. RCCI engine uses two different fuels. These fuels are low-reactivity (alcohol, gasoline, etc.) and high-reactivity (diesel, biodiesel, etc.) fuels. In addition, the fact that different alternative fuel types can be employed in these engines has made them popular all over the world. This review presents the results of the effects of parameters such as fuel ratio, different injection strategies, exhaust gas recirculation (EGR) rate, compression ratio, and piston geometry on the performance, emissions, and combustion behavior of RCCI engines using both conventional and alternative fuels. This study has been compiled to provide an overview of the current status of the RCCI concept and to offer benefits to researchers.

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Optimization on manifold injection in DI diesel engine fuelled with acetylene

Sonachalam,

Manieniyan,

Senthilkumar

2024

Proceedings of the Institution of Mechanical Engineers, Part A:

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Researchers demonstrated that implementing new combustion technology and optimising fuel quantity results in a significant reduction in traditional fossil fuel usage and emission levels. The Reactivity Controlled Compression Ignition (RCCI) combustion strategy is one of the low temperature combustion technologies, and it is used to reduce the overall combustion temperature while also providing better combustion control. This study looks into RCCI combustion technology, which uses conventional diesel fuel as the high reactivity fuel (HRF) injected through the injector and acetylene gas as the low reactivity fuel (LRF) injected into the cylinder via a modified inlet manifold alongside air. The modified engine setup was tested for performance, emissions, and combustion under various load conditions, as well as different mass flow rates of acetylene gas, a low reactivity fuel that is injected with air. The flow field of the low reactivity fuel at the inlet manifold is analysed using the Computational Fluid Dynamics principle, which is used to determine the best flow rate for improving combustion quality. According to the simulation results, the optimal acetylene flow rate is 3 Litres Per Minute (LPM), and experimentation shows that at 3 LPM acetylene injection, the brake thermal efficiency (BTE) improves by about 3.2%, and emissions such as carbon monoxide (CO), hydrocarbon (HC), smoke intensity, and oxides of nitrogen (NOx) are reduced by about 35%, 17%, 10%, and 21%, respectively.

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Analysis of performance, combustion, and emission parameters in a reactivity-controlled combustion ignition (RCCI) engine – an intensive review

Cited by 6 publications

References 45 publications

Thermal effects on Common Rail injection system hydraulic performance

Thermal effects on Common Rail injection system hydraulic performance

Developments in the RCCI engines powered by several alternative fuel types: An overview

Optimization on manifold injection in DI diesel engine fuelled with acetylene

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