Multi-field coupling effect of injection on dynamics and thermodynamics of a linear combustion engine generator with slow compression and fast expansion

Yuan, Chenheng; Shizhuo, Peng; Lifu, Zhou

doi:10.1016/j.energy.2023.126915

Cited by 3 publications

(1 citation statement)

References 42 publications

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“…In order to solve some issues related to Ukraine's energy supply in many areas, and especially in the energy sector, it is necessary to implement progressive and innovative mechanisms for efficient combustion of solid fuel. These include the reconstruction of the furnace of the boiler for stratified burning of solid fuel, the introduction of new efficient combustion technologies, which will ensure the timely and accurate supply of energy (Gao et al 2022;Zhang et al 2022;Yuan et al 2023).…”

Section: Introductionmentioning

confidence: 99%

Efficiency of preparation for solid fuel burning

Kravets,

Semerak,

Galyanchuk

et al. 2022

Mining Science

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The research presented in this study focuses on solid fuel and the process of preparing it for combustion. This topic is highly relevant as it plays a significant role in providing energy to the population and contributes to Ukraine's independence in the economic and energy sectors. Understanding the processes involved in solid fuel preparation is crucial for ensuring efficient energy production and minimizing negative environmental impacts. Therefore, this study aims to provide valuable insights into this area of research. The purpose of the work is to analyze the efficiency of preparation for burning solid fuel and to introduce effective tools that will allow to increase the efficiency of preparation to a new level. The article employed various methods to analyze the topic at hand, including the analytical method, deduction method, functional method, statistical method, synthesis method, and other relevant approaches. In the course of the research, the peculiarities of solid fuel and its differences with other sources from which energy is obtained were noted, errors in the preparation for the burning process of this object and the reasons for their appearance were analyzed. Ineffective methods of increasing the efficiency of preparation for burning solid fuel and their impact on the quality of this process were identified. It was determined that the process of burning solid fuel plays the most important role in increasing the efficiency of power plants of industrial enterprises and not only that.

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Section: Introductionmentioning

confidence: 99%

Efficiency of preparation for solid fuel burning

Kravets,

Semerak,

Galyanchuk

et al. 2022

Mining Science

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Study of hydrogen injection strategy on fuel mixing characteristics of a free-piston engine

Qin,

Liu,

Zhang

et al. 2024

Case Studies in Thermal Engineering

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Dynamic coupling effects of injection on spray and mixture formation in an asymmetrically vibrating combustion engine

Peng,

Yuan,

2024

Proceedings of the Institution of Mechanical Engineers, Part A:

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Enhanced methods of energy conversion present a viable solution for addressing energy load challenges. This study introduces a vibrating combustion engine designed to enhance energy conversion efficiency by harnessing flexible dynamics and variable asymmetric motion. However, the consideration of its unique dynamic effects has emerged as a pivotal challenge in fuel-air mixing and combustion research. This study introduces a fuel spray and mixing simulation method that facilitates the reciprocal exchange of coupling parameters between the combustion and dynamics models. It iterates the simulation outcomes of motion and combustion to predict mixture formation. Subsequently, the method is employed to explore the impact of injection position on fuel spray and mixture formation. Results show that there is an optimum injection position for the operation frequency, and retarding or advancing leads to slow compression and weak gas motion for fuel spray and mixing, although retarded injection provides high in-cylinder gas pressure and temperature. The early injection generally causes long penetration, small droplet diameter, slight impingement, and fast evaporation, unless it is too early. The results further indicate that when IAP = 6 mm, a more uniform mixture can be attained at the beginning of combustion, leading to a thermal efficiency of up to 42.9% for the engine.

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Multi-field coupling effect of injection on dynamics and thermodynamics of a linear combustion engine generator with slow compression and fast expansion

Cited by 3 publications

References 42 publications

Efficiency of preparation for solid fuel burning

Efficiency of preparation for solid fuel burning

Study of hydrogen injection strategy on fuel mixing characteristics of a free-piston engine

Dynamic coupling effects of injection on spray and mixture formation in an asymmetrically vibrating combustion engine

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