Analysis of a Dual-Fuel Combustion Engine Fueled with Diesel Fuel and CNG in Transient Operating Conditions

Pielecha, Ireneusz; Wisłocki, Krzysztof; Cieślik, Wojciech; Borowski, Przemysław; Bueschke, Wojciech; Skowron, Maciej

doi:10.4271/2016-01-2305

Cited by 5 publications

(3 citation statements)

References 23 publications

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“…The engine unit has a piston diameter of 85 mm and a stroke of 90 mm. Over the past few years, the research carried out at this test bench has focused on:  using the ionization voltage signal to diagnose the combustion process of a spark ignition engine fueled with natural gas [8]  assessing the impact of different CNG fueling methods on the stability of engine operation with a prechamber [26]  research of new solutions for engine ignition systems and combustion of lean air-gas mixtures with the use of two-stage combustion systems [19,20]  investigating the potential of cold-flame-combustion while working with high Exhaust Gas Recirculation (EGR) rates [6].…”

Section: Object Of Studymentioning

confidence: 99%

Reverse engineering as a modern methods of test bed modernization

Cieślik,

Mielcarzewicz,

Rawecki

2023

Combustion Engines

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The main purpose of the work is to present the individual stages of the reverse engineering process on the example of a dynamometer equipped with a single-cylinder research engine AVL 5804. The scope of work includes theoretical and practical aspects of measurements using 3D scanners. The Scantech KSCAN Magic hand-held optical scanner was used to measure the geometry of the dynamometer. The CAD model was created in the Autodesk Inventor program, and the correctness of its execution was checked by basing it on the scan and generating a scale of deviations along with a color representation of their size in the GOM Inspect program. The work was summarized with an example of upgrading the current stand based on a previously made design, which significantly shortened the process of modifying the intake system. <hr> <iframe width="560" height="315" src="https://www.youtube.com/embed/UT3n2IZL5ck?si=O5f0OFr3ThQaWC8Q" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

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Section: Object Of Studymentioning

confidence: 99%

Reverse engineering as a modern methods of test bed modernization

Cieślik,

Mielcarzewicz,

Rawecki

2023

Combustion Engines

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“…Subsequently, it was modified in several ways, including applying the common rail system and system for co-combustion of liquid and gaseous fuels (dual fuel). Finally, the design in which the spark-jet ignition system (TJI) was applied and was introduced for using gaseous fuels [11][12][13].…”

Section: Fig 2 Combustion Engines Technology Upgrades and Implementationmentioning

confidence: 99%

Reverse engineering of research engine cylinder-head

Cieślik¹,

Szwajca²,

Wisłocki³

2021

Combustion Engines

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The pursuit of increasing the efficiency of internal combustion engines is an ongoing engineering task that requires numerous research efforts. New concepts of injection or combustion systems require preliminary investigation work using research engines. These engines, usually single-cylinder, make it possible to isolate a single variable in a complex combustion mixture preparation process, thus enabling analysis of the changes being made. However, these engines are relatively expensive and their designs are offered by a limited number of manufacturers. The authors of this paper have successfully undertaken the engineering task of modifying an existing research engine cylinder head in such a way as to implement an electronically controlled variable valve timing system of the intake system. The process of reverse engineering, together with design assumptions that finally contributed to the construction of the assumed solution has been described in this paper.

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“…The authors of this article, using the gasoline burning systems [27,28], diesel [29][30][31][32] and dual fuel systems [33], used a combustion system with a prechamber for the research and analysis of the gas supply system thermodynamic optimization of a CNG spark ignition engine.…”

Section: Motivationmentioning

confidence: 99%

Turbulent spark-jet ignition in SI gas fuelled engine

et al. 2017

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Abstract. The article contains a thermodynamic analysis of a new combustion system that allows the combustion of stratified gas mixtures with mean air excess coefficient in the range 1.4-1.8. Spark ignition was used in the pre-chamber that has been mounted in the engine cylinder head and contained a rich mixture out of which a turbulent flow of ignited mixture is ejected. It allows spark-jet ignition and the turbulent combustion of the lean mixture in the main combustion chamber. This resulted in a two-stage combustion system for lean mixtures. The experimental study has been conducted using a single-cylinder test engine with a geometric compression ratio  = 15.5 adapted for natural gas supply. The tests were performed at engine speed n = 2000 rpm under stationary engine load when the engine operating parameters and toxic compounds emissions have been recorded. Analysis of the results allowed to conclude that the evaluated combustion system offers large flexibility in the initiation of charge ignition through an appropriate control of the fuel quantities supplied into the pre-chamber and into the main combustion chamber. The research concluded with determining the charge ignition criterion for a suitably divided total fuel dose fed to the cylinder.

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Analysis of a Dual-Fuel Combustion Engine Fueled with Diesel Fuel and CNG in Transient Operating Conditions

Cited by 5 publications

References 23 publications

Reverse engineering as a modern methods of test bed modernization

Reverse engineering as a modern methods of test bed modernization

Reverse engineering of research engine cylinder-head

Turbulent spark-jet ignition in SI gas fuelled engine

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