Development of knock prediction technique in dual fuel engines and its mitigation with direct water injection

Sehili, Youcef; Loubar, Khaled; Lounici, Mohand Said; Tarabet, Lyes; Cerdoun, Mahfoudh; Lacroix, Clément

doi:10.1016/j.fuel.2023.130297

Cited by 7 publications

(3 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the case of SI engines, a high temperature in the combustion chamber leads to knock, a phenomenon characterized by the premature detonation of the air-fuel mixture before the spark plug ignites, which can cause severe damage [48].…”

Section: Automotive Applicationsmentioning

confidence: 99%

“…Nevertheless, there exist technical strategies such as the rational selection of materials and the appropriate adaptation of the coating's thickness layer, alongside other technical approaches related to engine design and equipment, that integrate TBCs to enhance engine performance and mitigate or eliminate the previously mentioned adverse effects [48,49]. Additionally, this topic may serve as a promising avenue for future research.…”

Section: Automotive Applicationsmentioning

confidence: 99%

See 1 more Smart Citation

A Comprehensive Understanding of Thermal Barrier Coatings (TBCs): Applications, Materials, Coating Design and Failure Mechanisms

Bogdan,

Peter

2024

Metals

View full text Add to dashboard Cite

This review offers a comprehensive analysis of thermal barrier coatings (TBCs) applied to metallic materials. By reviewing the recent literature, this paper reports on a collection of technical information, involving the structure and role of TBCs, various materials and coating processes, as well as the mechanisms involved in the durability and failure of TBCs. Although TBCs have been successfully utilized in advanced applications for nearly five decades, they continue to be a subject of keen interest and ongoing study in the world of materials science, with overviews of the field’s evolution remaining ever relevant. Thus, this paper outlines the current requirements of the main application areas of TBCs (aerospace, power generation and the automotive and naval industries) and the properties and resistance to thermal, mechanical and chemical stress of the different types of materials used, such as zirconates, niobates, tantalates or mullite. Additionally, recent approaches in the literature, such as high-entropy coatings and multilayer coatings, are presented and discussed. By analyzing the failure processes of TBCs, issues related to delamination, spallation, erosion and oxidation are revealed. Integrating TBCs with the latest generations of superalloys, as well as examining heat transfer mechanisms, could represent key areas for in-depth study.

show abstract

Section: Automotive Applicationsmentioning

confidence: 99%

Section: Automotive Applicationsmentioning

confidence: 99%

A Comprehensive Understanding of Thermal Barrier Coatings (TBCs): Applications, Materials, Coating Design and Failure Mechanisms

Bogdan,

Peter

2024

Metals

View full text Add to dashboard Cite

show abstract

“…One of the most widely discussed solutions is the transition to carbon-free fuels such as ammonia (NH 3 ) [3]. Moreover, given the promising characteristics of dual fuel engine technology [4], using this fuel in these engines is emerging as one of the best alternatives to conventional combustion engines.…”

Section: Introductionmentioning

confidence: 99%

Computational Investigation of the Influence of Combustion Chamber Characteristics on a Heavy-Duty Ammonia Diesel Dual Fuel Engine

Sehili,

Loubar,

Tarabet

et al. 2024

Energies

Self Cite

View full text Add to dashboard Cite

In response to increasingly stringent emissions regulations and the depletion of conventional fuel sources, integrating carbon-free fuels into the transport sector has become imperative. While hydrogen (H2) presents significant technical challenges, ammonia (NH3) could present a better alternative offering ease of transport, storage, and distribution, with both ecological and economic advantages. However, ammonia substitution leads to high emissions of unburned NH3, particularly at high loads. Combustion chamber retrofitting has proven to be an effective approach to remedy this problem. In order to overcome the problems associated with the difficult combustion of ammonia in engines, this study aims to investigate the effect of the piston bowl shape of an ammonia/diesel dual fuel engine on the combustion process. The primary objective is to determine the optimal configuration that offers superior engine performance under high load conditions and with high ammonia rates. In this study, a multi-objective optimization approach is used to control the creation of geometries and the swirl rate under the CONVERGETM 3.1 code. To maximize indicated thermal efficiency and demonstrate the influence of hydrogen enrichment on ammonia combustion in ammonia/diesel dual fuel engines, a synergistic approach incorporating hydrogen enrichment of the primary fuel was implemented. Notably, the optimum configuration, featuring an 85% energy contribution from ammonia, outperforms others in terms of combustion efficiency and pollutant reduction. It achieves over 43% reduction in unburned NH3 emissions and a substantial 31% improvement in indicated thermal efficiency.

show abstract

Dual fuel engine injector temperature monitoring: An innovative thermal analysis approach

Sehili,

Cerdoun,

Loubar

et al. 2024

Applied Thermal Engineering

View full text Add to dashboard Cite

Development of knock prediction technique in dual fuel engines and its mitigation with direct water injection

Cited by 7 publications

References 52 publications

A Comprehensive Understanding of Thermal Barrier Coatings (TBCs): Applications, Materials, Coating Design and Failure Mechanisms

A Comprehensive Understanding of Thermal Barrier Coatings (TBCs): Applications, Materials, Coating Design and Failure Mechanisms

Computational Investigation of the Influence of Combustion Chamber Characteristics on a Heavy-Duty Ammonia Diesel Dual Fuel Engine

Dual fuel engine injector temperature monitoring: An innovative thermal analysis approach

Contact Info

Product

Resources

About