Transition to detonation in a hydrogen-air mixtures due to shock wave focusing in the 90 - deg corner

Rudy, W.

doi:10.1016/j.ijhydene.2022.12.240

Cited by 7 publications

(1 citation statement)

References 33 publications

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“…The growth of the initial turbulence increased the whole speed of flame propagation and maximum overpressure. Rudy et al 26 studied high-rate turbulent deflagration of premixed hydrogen, the transition process to detonation, and turbulent flame speed rates. Zhang et al 27 evaluated the dynamical explosion severity of hydrogen in spherical sealed tanks and obtained multidimensional transient explosion characteristics.…”

Section: Introductionmentioning

confidence: 99%

Effect of N₂ and CO₂ on the Explosion Properties of High Equivalence Ratios of Hydrogen

Luo,

Qi,

et al. 2023

ACS Omega

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The explosion characteristics of premixed gases under different equivalence ratios (1.0–3.0) and inert gas addition (5–20%) are experimentally investigated, and sensitivity analysis of the radical reactions is carried out using the USC Mech II model to analyze the molar fraction of radicals. The results show that at high equivalence ratios, inert gas has little effect on flame stability. The addition of an inert gas reduces the tensile rate in the early stage of flame growth. At high equivalence ratios, CO 2 inhibits explosive flame propagation twice as effectively as N 2 . Due to the large heat capacity and chemical kinetic effects, CO 2 has a stronger inhibitory effect on the explosion pressure than N 2 , and the inhibition efficiency on the explosion strength is nearly twice that high. To further analyze the effect of different inert gas addition ratios on chemical kinetics, sensitivity analysis, and molar fraction simulations were performed. The thermal and chemical kinetic effects of CO 2 cause later generation of H and OH radicals and the partial chain reaction involving CO 2 causes a lower peak of H radicals than the peak of H radicals generated under an N 2 atmosphere. However, CO 2 is a direct reactant and the third body to produce a small chemical kinetic effect.

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Section: Introductionmentioning

confidence: 99%

Effect of N₂ and CO₂ on the Explosion Properties of High Equivalence Ratios of Hydrogen

Luo,

Qi,

et al. 2023

ACS Omega

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The thermodynamics of C-J deflagration

Liu

2024

Case Studies in Thermal Engineering

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Effect of composition gradient on detonation initiation in fuel-rich hydrogen-air mixtures in an obstructed channel

Fan,

Li,

Xiao

2024

International Journal of Hydrogen Energy

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Transition to detonation in a hydrogen-air mixtures due to shock wave focusing in the 90 - deg corner

Cited by 7 publications

References 33 publications

Effect of N₂ and CO₂ on the Explosion Properties of High Equivalence Ratios of Hydrogen

Effect of N₂ and CO₂ on the Explosion Properties of High Equivalence Ratios of Hydrogen

The thermodynamics of C-J deflagration

Effect of composition gradient on detonation initiation in fuel-rich hydrogen-air mixtures in an obstructed channel

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Transition to detonation in a hydrogen-air mixtures due to shock wave focusing in the 90 - deg corner

Cited by 7 publications

References 33 publications

Effect of N2 and CO2 on the Explosion Properties of High Equivalence Ratios of Hydrogen

Effect of N2 and CO2 on the Explosion Properties of High Equivalence Ratios of Hydrogen

The thermodynamics of C-J deflagration

Effect of composition gradient on detonation initiation in fuel-rich hydrogen-air mixtures in an obstructed channel

Contact Info

Product

Resources

About

Effect of N₂ and CO₂ on the Explosion Properties of High Equivalence Ratios of Hydrogen

Effect of N₂ and CO₂ on the Explosion Properties of High Equivalence Ratios of Hydrogen