Unstretched unburned flame speed and burned gas Markstein length of diluted hydrogen/air mixtures

Duva, Berk Can; Toulson, Elisa

doi:10.1016/j.ijhydene.2021.12.217

Cited by 11 publications

(2 citation statements)

References 64 publications

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“…Moreover, the flame structure is influenced by the local flow velocity, local flame curvature and thermodiffusive properties of the mixture [14,15,16,17], which are particularly important for hydrogen [18,19]. In addition, both measurements [20,21,22] and numerical simulations [23,24] prove that heat losses towards the flame holder also affect flame stabilization and flame dynamics.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen substitution of natural-gas in premixed burners and implications for blow-off and flashback limits

Aniello

Poinsot

Selle

et al. 2022

International Journal of Hydrogen Energy

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Section: Introductionmentioning

confidence: 99%

Hydrogen substitution of natural-gas in premixed burners and implications for blow-off and flashback limits

Aniello

Poinsot

Selle

et al. 2022

International Journal of Hydrogen Energy

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“…Turbo-engines have played a significant role in scientific and industrial development in the last century, and they are used in different types of air breathing propulsion systems as well as in the power plants and oil-gas industries. The combustion chamber as one of the main parts of the turboengines has been extensively developed and optimized for performance improvement, 1 life increase 2,3 and pollution reduction 4,5 in recent decades, and it is under analysis and design in some new areas such as hydrogen fuel replacement, [6][7][8][9] now a days.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the combustion chambers' atmospheric test data

Gheshlaghi

Tahsini

2022

Proceedings of the Institution of Mechanical Engineers, Part G:

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Due to the complexities of the turbulent reacting flows in the combustion chamber of the turbo-engines, despite significant advances in the computational fluid dynamics, the experimental investigations are still very useful in design and optimization processes. On the other hand, the operating conditions of the combustion chambers are such that they have high inlet pressures and temperatures, so providing these conditions for the considered air flow in the combustion chamber is very complex and expensive. Therefore, the development of low pressure test stands has been considered for decades, and the atmospheric tests are utilized in many research centers and industries related to the turbo-engines. In the present study, using numerical simulations, the effect of pressure on the flame shape and pollutants is investigated and the validity of the results of atmospheric tests is analyzed. Here, an in-house developed program is used to solve the governing equations using the finite volume method. The results show that the flame shape significantly varies at low pressures compared to the operating conditions, and the atmospheric test data are not reliable enough.

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A fuel-focused review of pre-chamber initiated combustion

Trombley,

Toulson

2023

Energy Conversion and Management

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Unstretched unburned flame speed and burned gas Markstein length of diluted hydrogen/air mixtures

Cited by 11 publications

References 64 publications

Hydrogen substitution of natural-gas in premixed burners and implications for blow-off and flashback limits

Hydrogen substitution of natural-gas in premixed burners and implications for blow-off and flashback limits

Assessment of the combustion chambers' atmospheric test data

A fuel-focused review of pre-chamber initiated combustion

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