Physics of spontaneous ignition of high-pressure hydrogen release and transition to jet fire

Bragin, Maxim; Molkov, Vladimir

doi:10.1016/j.ijhydene.2010.04.128

Cited by 97 publications

(32 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A similar value of 2.5 MPa was provided by Golub et al [4] in their numerical investigations. The conclusion regarding the observed ignition spot position in the vicinity of the wall [12] is also consistent with the previously performed numerical research [17]. The conclusions regarding tube diameter influence did not determine clearly its impact on the ignition (see Fig.…”

Section: Introductionsupporting

confidence: 89%

Experimental and numerical study on spontaneous ignition of hydrogen and hydrogen-methane jets in air

Rudy

Dąbkowski

Teodorczyk

2014

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

Section: Introductionsupporting

confidence: 89%

Experimental and numerical study on spontaneous ignition of hydrogen and hydrogen-methane jets in air

Rudy

Dąbkowski

Teodorczyk

2014

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

“…The spontaneous ignition first occurred in a boundary layer and consequently spread throughout a cross-section of the tube, i.e. through the contact surface between air and hydrogen where mixing takes place, similar to our previous 3D study with an instant opening of a flat membrane [14].…”

Section: Introductionsupporting

confidence: 85%

“…The LES model used in this study has been previously applied to simulate dynamics of spontaneous ignition of hydrogen emerging into air within simple geometries [14]. In this paper the model is described for the first time in full detail.…”

Section: The Les Modelmentioning

confidence: 99%

Pressure limit of hydrogen spontaneous ignition in a T-shaped channel

Bragin

Makarov

Molkov

2013

International Journal of Hydrogen Energy

Self Cite

View full text Add to dashboard Cite

Large eddy simulation Pressure relief device Eddy dissipation concept Detailed chemistry a b s t r a c t This paper describes a large eddy simulation model of hydrogen spontaneous ignition in a T-shaped channel filled with air following an inertial flat burst disk rupture. This is the first time when 3D simulations of the phenomenon are performed and reproduced experimental results by Golub et al. (2010). The eddy dissipation concept with a full hydrogen oxidation in air scheme is applied as a sub-grid scale combustion model to enable use of a comparatively coarse grid to undertake 3D simulations. The renormalization group theory is used for sub-grid scale turbulence modelling. Simulation results are compared against test data on hydrogen release into a T-shaped channel at pressure 1.2e2.9 MPa and helped to explain experimental observations. Transitional phenomena of hydrogen ignition and self-extinction at the lower pressure limit are simulated for a range of storage pressure. It is shown that there is no ignition at storage pressure of 1.35 MPa. Sudden release at pressure 1.65 MPa and 2.43 MPa has a localised spot ignition of a hydrogen-air mixture that quickly self-extinguishes. There is an ignition and development of combustion in a flammable mixture cocoon outside the T-shaped channel only at the highest simulated pressure of 2.9 MPa. Both simulated phenomena, i.e. the initiation of chemical reactions followed by the extinction, and the progressive development of combustion in the T-shape channel and outside, have provided an insight into interpretation of the experimental data. The model can be used as a tool for hydrogen safety engineering in particular for development of innovative pressure relief devices with controlled ignition.

show abstract

“…The modeling and large-eddy simulation (LES) of the spontaneous ignition dynamics of hydrogen in a tube with a non-inertial rupture diaphragm is described in [12]. Numerical experiments confirmed that due to the stagnation conditions a chemical reaction first commences in the tube boundary layer, and subsequently propagates throughout the tube cross-section.…”

Section: Introductionmentioning

confidence: 95%

The influence of diaphragm rupture rate on spontaneous self-ignition of pressurized hydrogen: Experimental investigation

Головастов

Bocharnikov

2012

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

Physics of spontaneous ignition of high-pressure hydrogen release and transition to jet fire

Cited by 97 publications

References 12 publications

Experimental and numerical study on spontaneous ignition of hydrogen and hydrogen-methane jets in air

Experimental and numerical study on spontaneous ignition of hydrogen and hydrogen-methane jets in air

Pressure limit of hydrogen spontaneous ignition in a T-shaped channel

The influence of diaphragm rupture rate on spontaneous self-ignition of pressurized hydrogen: Experimental investigation

Contact Info

Product

Resources

About