Investigation of Diesel combustion using multiple injection strategies for idling after cold start of passenger-car engines

Payri, F.; Broatch, A.; Salavert, José Miguel; Martín, Javier Rodríguez

doi:10.1016/j.expthermflusci.2010.01.014

Cited by 54 publications

(15 citation statements)

References 25 publications

(25 reference statements)

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“…Hence, a closed-loop control was programmed for achieving the desired IMEP and combustion phasing and for limiting the MPRR under a safe range by correcting the open-loop settings by means of PI controllers to define the final control actions. In this work, instead of the common CA50, the combustion phasing was estimated through the parameter known as the combustion centroid 43 that the authors named the crank angle combustion centre of gravity (CACG) in this work. This choice is justified by an important CA50 cycle-to-cycle variation when working under high load DFC.…”

Section: Control Systemmentioning

confidence: 99%

Closed-loop control of a dual-fuel engine working with different combustion modes using in-cylinder pressure feedback

Guardiola

Plá

Bares

et al. 2019

International Journal of Engine Research

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This work presents a closed-loop combustion control concept using in-cylinder pressure as a feedback in a dual-fuel combustion engine. At low load, reactivity controlled compression ignition combustion was used while a diffusive dual-fuel combustion was performed at higher loads. The aim of the presented controller is to maintain the indicated mean effective pressure and the combustion phasing at a target value, and to keep the maximum pressure derivative under a limit to avoid engine damage in all the combustion modes by cyclically adapting the injection settings. Various tests were performed at steady-state conditions showing good abilities to fulfil the expected operating conditions but also to reject disturbances such as intake pressure or exhaust gas recirculation variations. Finally, the proposed control strategy was tested during a load transient resulting in a combustion switching-mode and the results exhibited the closed-loop potential for controlling such combustion concept.

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Section: Control Systemmentioning

confidence: 99%

Closed-loop control of a dual-fuel engine working with different combustion modes using in-cylinder pressure feedback

Guardiola

Plá

Bares

et al. 2019

International Journal of Engine Research

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“…Smoke emissions were observed to increase with pilot injections and its trade off increased with combustion noise due to the reduction in premixed phase of combustion. Also, it has revealed an increase in engine stability with increasing injections over a single combustion event [34,35]. From the literature it was observed that incylinder techniques had focused on the lowering of NOx emissions and resulted in increasing PM (soot) and vice versa with a consequent effect on engine performance.…”

Section: Effective Abatement Of Diesel Engine Emissions With Split Inmentioning

confidence: 99%

Effective abatement of diesel engine emissions with split injections

Ravichettu¹,

Rao²,

Murthy³

2017

Int. J. Automot. Mech. Eng.

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High fuel efficiency with good fuel economy and low carbon monoxide and hydrocarbon emissions are the essential features that are widely used in light, medium and heavy duty applications. However, high emissions of nitrogen (NOx) oxides and particulate matter (PM) is a major challenge and sometimes perplexing. Researchers have tackled the issues on multi-cylinder engines by adopting the common rail fuel injection systems which employs a multiple injection technique. The present work aims at utilising this for a single cylinder diesel engine. To study its efficacy, a numerical analysis by developing a quasidimensional computational model and coupled with thermodynamic considerations to model heat release rates and emissions of NOx and soot. For this purpose, a computer code was developed in C ++ and validated with the experimental results. Then a split technique was incorporated into the model. It is noted that for a case of 75 (8)

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“…They reported that the application of pilot injection can reduce NOx emission with an acceptable level of soot emission. Besides above two studies, there are more literatures about multiple injection combustion strategy including two-stage injection [27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Injection strategy for simultaneous reduction of NOx and soot emissions using two-stage injection in DME fueled engine

Park

Yoon²

2015

Applied Energy

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Investigation of Diesel combustion using multiple injection strategies for idling after cold start of passenger-car engines

Cited by 54 publications

References 25 publications

Closed-loop control of a dual-fuel engine working with different combustion modes using in-cylinder pressure feedback

Closed-loop control of a dual-fuel engine working with different combustion modes using in-cylinder pressure feedback

Effective abatement of diesel engine emissions with split injections

Injection strategy for simultaneous reduction of NOx and soot emissions using two-stage injection in DME fueled engine

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