Numerical study of wavy-wall effects on premixed H2/air flammability limits, propagation modes, and thermal performance of micro combustion chambers

Abbaspour, Pouyan; Alipoor, Alireza

doi:10.1016/j.apenergy.2024.122727

Cited by 8 publications

(2 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, Abbaspour and Alipoor [113] extended the previous work on convergent-divergent microtubes [102] by using a cosine wave-shaped combustor, and the results indicate that wavy walls facilitate the keeping and propagation of self-sustaining flames within the micro combustion chamber.…”

Section: Investigations In Wavy Wall Geometriesmentioning

confidence: 85%

A Review on Micro-Combustion Flame Dynamics and Micro-Propulsion Systems

Dias,

Resende,

Afonso

2024

Energies

View full text Add to dashboard Cite

This work presents a state-of-the-art review of micro-combustion flame dynamics and micro propulsion systems. In the initial section, we focus in on the different challenges of micro-combustion, investigating the typical length and time scales involved in micro-combustion and some critical phenomena such as flammability limits and the quenching diameter.We present an extensive collection of studies on the principal types of micro-flame dynamics, including flashback, blow-off, steady versus non-steady flames, mild combustion, stable flames, flames with repetitive extinction, and ignition and pulsatory flame burst. In the final part of this review, we focus on micropropulsion systems, their performance metrics, conventional manufacturing methods, and the advancements in Micro-Electro-Mechanical Systems manufacturing.

show abstract

Section: Investigations In Wavy Wall Geometriesmentioning

confidence: 85%

A Review on Micro-Combustion Flame Dynamics and Micro-Propulsion Systems

Dias,

Resende,

Afonso

2024

Energies

View full text Add to dashboard Cite

show abstract

“…Table 2 shows that the different diameters of the combustor produce different flame modes with the same equivalence ratio for each of the conditions in which the flame mode is formed. Variations in the diameter of the combustor cause the difference in flame mode [34], [35]. Variations in combustor diameter can result in differences in reactant flow rates, heat loss, and differences in the intensity of preheating of the fuel by the wire mesh in each diameter variation.…”

Section: Results Dan Discussionmentioning

confidence: 99%

Characterization of Combustion in Cylindrical Meso-Scale Combustor with Wire Mesh Flame Holder as Initiation of Energy Source for Future Vehicles

Sanata,

Ilminnafik,

Asyhar

et al. 2024

View full text Add to dashboard Cite

The research aims to analyze and reveal combustion characteristics in a Cylindrical Meso Scale (CMS) Combustor with a wire mesh flame holder as a reference for designing a compact, efficient, and high-density energy source for future vehicles. This experiment analyzes the combustion ’s of a butane gas (C4H10)-air mixture in a cylindrical meso-scale (CMS) combustor with the addition of wire mesh flame holder on the stability of the combustion flame, as initiation of future vehicle energy source. The diameter of the CMS combustor with wire mesh flame holder is varied to give an idea of the effect of heat loss on the combustion flame's characteristics. The results show that the wire mesh as a flame holder is essential in the combustion stabilization mechanism. A stable flame can be stabilized in a CMS combustor with wire mesh. Variations in the diameter of the CMS combustor will result in variations in the surface-to-volume ratio, heat loss, and contact area of the wire mesh flame holder. At a large diameter, it produces the characteristics of a combustion flame with a more stable flame stability limit than a smaller diameter, a dimmer flame visualization than a smaller diameter at the same air and fuel discharge, a more distributed flame mode map area than the smaller diameter, lower flame temperature and combustor wall temperature than the smaller diameter, and relatively higher energy output than the smaller diameter.

show abstract

Experimental study on the propagation characteristics of non-premixed H2/air flames in a curved micro-combustor

Liu,

et al. 2024

Energy

View full text Add to dashboard Cite

Numerical study of wavy-wall effects on premixed H2/air flammability limits, propagation modes, and thermal performance of micro combustion chambers

Cited by 8 publications

References 36 publications

A Review on Micro-Combustion Flame Dynamics and Micro-Propulsion Systems

A Review on Micro-Combustion Flame Dynamics and Micro-Propulsion Systems

Characterization of Combustion in Cylindrical Meso-Scale Combustor with Wire Mesh Flame Holder as Initiation of Energy Source for Future Vehicles

Experimental study on the propagation characteristics of non-premixed H2/air flames in a curved micro-combustor

Contact Info

Product

Resources

About