Study on the closed-loop combustion control for a diesel engine by using a dynamic-target online prediction model

Ou, Shunhua; Yu, Yang; Jiang, Yang

doi:10.1016/j.conengprac.2022.105226

Cited by 7 publications

(3 citation statements)

References 35 publications

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“…The solution to this problem may be the use of closed-loop combustion control (CLCC). Study [41] proposed a reference governor-based combustion control (RGCC) strategy for balancing the indicated mean effective pressure, the reference and variable feedback values of which were generated based on a modified Kalman filter (KF) algorithm instead of on an MAP. Its effectiveness and efficiency were compared with the results of experimental studies on a commercial diesel engine test rig, which were carried out under steady-state and transient conditions [41].…”

Section: Control Automation Neural Network and Flame Imaging Methodsmentioning

confidence: 99%

Pulverized Coal-Fired Boilers: Future Directions of Scientific Research

et al. 2023

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The paper provides an outlook on future directions of research and the possible applications for pulverized coal-fired boilers. One potential direction for future research is to focus on the ways to improve the efficiency of pulverized coal-fired boilers. This could involve developing new combustion technologies that are able to more thoroughly burn the coal and produce less waste or finding ways to capture and use the excess heat that is generated during the combustion process. The pulverized coal combustion process in power boilers is still being improved by the preliminary cleaning of coal and the use of various catalytic additives. Another area of research that could be valuable is the development of advanced control systems and monitoring technologies for pulverized coal-fired boilers. These systems could be used to optimize the performance of the boiler and ensure that it is operating at maximum efficiency while also providing real-time data on the condition of the boiler and any potential problems that may arise. The analysis of literature shows that several future paths of development and scientific research related to the technology of pulverized coal combustion in boilers can be distinguished.

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Section: Control Automation Neural Network and Flame Imaging Methodsmentioning

confidence: 99%

Pulverized Coal-Fired Boilers: Future Directions of Scientific Research

et al. 2023

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“…With the continuous development of technology and the industrial level, diesel engines are being widely used in fields such as transportation, industry, and national defense technology due to advantages such as wide power range, high thermal efficiency, high safety, and large output torque [1][2][3]. With the increase in the number of internal combustion engines, such as diesel engines, the environmental pollution caused by them has gradually become a serious problem.…”

Section: Introductionmentioning

confidence: 99%

Study of the Optimization of Rail Pressure Characteristics in the High-Pressure Common Rail Injection System for Diesel Engines Based on the Response Surface Methodology

Li,

Yuan,

et al. 2023

Processes

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This paper establishes a mathematical model of the high-pressure common rail injection system used in diesel engines according to the parameters of its key components, and AMESim 2020 software was used to establish a simulation model of the common rail injection system used in diesel engines. The simulation model mainly includes a high-pressure oil pump model, a common rail pipe model, and a model of four injectors. This paper also describes an experimental analysis of the accuracy of the established simulation model. Through a simulation analysis of the system rail’s pressure fluctuation and pressure characteristics, it was concluded that the length of the common rail pipe, the diameter of the common rail pipe, and the inner diameter of the high-pressure fuel pipes are important influencing parameters for the rail pressure characteristics of the system. In this study, according to the original common rail pipe and high-pressure fuel pipe model, a response surface methodology was used to optimize and analyze the parameters of the common rail pipe and high-pressure fuel pipes, and the optimal size parameters for the common rail pipe and high-pressure fuel pipes were obtained with the minimum rail pressure fluctuations and the average rail pressure setpoint. After the optimization, the pressure for the common rail pipe of the high-pressure common rail system was increased by 0.82%, the pressure fluctuation was reduced by 21.66%, the injection pressure was increased by 1.15%, the single injection volume was increased by 0.86%, and its fuel injection characteristics were significantly improved.

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“…Engine models reproducing the phenomenology related to engine thermal stabilization and oil warm up account for heat release rate [46,47], combustion-controlling parameters [48,49], gases/coolant heat transfer dynamics reproduction [50,51], emission formation [52], fuel consumption [53].…”

mentioning

confidence: 99%

Model Parameterized Assessment of a Thermal Storage Unit for Engine Oil Warm-up Improvement

Vittorini

Diomede

Battista

et al. 2022

J. Phys.: Conf. Ser.

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Despite the attention paid to components downsizing and down weighting, as well as to combustion control and exhaust gases after-treatment, friction reduction remains a promising area of intervention when it comes to the reduction of the environmental impact of internal combustion engines. The larger gain must be sought at cold starts, when the viscosity of the lubricant oil is higher and does not allow proper friction reduction. Moreover, during the first phases of engine operation, the metallic masses are not yet warm and do not contribute to the thermal stabilization of the lubricant. Further consequences of unfavourable thermal conditions are increased specific fuel consumption and pollutant emissions. Proper thermal management could effectively speed up the reaching of the design operating temperature of the oil and positively affect both homologation and on-road operation. The abundance of waste thermal energy during normal operation supports the option of on-board thermal storage for faster oil heating: water, heated by exhaust gases or residual thermal energy from previous use or by a combination of the two, can be stored inside a thermally insulated tank and serve as heating fluid in a dedicated water/oil heat exchanger. The paper presents a model based evaluation of this opportunity. The model has been validated thanks to an experimental activity carried out on an IVECO 3.0 L light-duty diesel engine, during a transient cycle (i.e., homologation one) reproduced on a dynamometric test bench. Different configurations in terms of hot storage volume, hot storage initial temperature, and the flow rate of the hot water during operation have been studied, producing optimized values for the hot water and storage unit design.

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Study on the closed-loop combustion control for a diesel engine by using a dynamic-target online prediction model

Cited by 7 publications

References 35 publications

Pulverized Coal-Fired Boilers: Future Directions of Scientific Research

Pulverized Coal-Fired Boilers: Future Directions of Scientific Research

Study of the Optimization of Rail Pressure Characteristics in the High-Pressure Common Rail Injection System for Diesel Engines Based on the Response Surface Methodology

Model Parameterized Assessment of a Thermal Storage Unit for Engine Oil Warm-up Improvement

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