Journal ArticleDOI
Properties of large-scale methane/hydrogen jet fires
Etienne Studer,Didier Jamois,Simon Jallais,Guillaume Leroy,Jérôme Hebrard,Vincent Blanchetiere +5 more
TLDR
In this article, the main characteristics of large-scale jet fires including visible length, radiation fluxes and blowout have been assessed, and the effects of mixing hydrogen with natural gas will modify the consequences of accidents substantially.About:
This article is published in International Journal of Hydrogen Energy.The article was published on 2009-12-01. It has received 51 citations till now. The article focuses on the topics: Natural gas & Energy carrier.read more
Citations
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Journal ArticleDOI
Assessment of the shape of vertical jet fires
Adriana Palacios,Joaquim Casal +1 more
TL;DR: In this paper, the main geometrical features of jet fires (flame shape, length and width) were determined by analyzing infrared images from the observations of visible and infrared images, the flame boundary was defined as that corresponding to a temperature of 800 K and the ratio of flame length to diameter was found to be 7.7.
Journal ArticleDOI
Hazards, safety and knowledge gaps on hydrogen transmission via natural gas grid: A critical review
TL;DR: A brief summary of the main known hazards and risks associated with hydrogen injection into a natural gas grid and the latest progress in safety measures, the knowledge gaps and future research is provided in this paper.
Journal ArticleDOI
Jet flame heights, lift-off distances, and mean flame surface density for extensive ranges of fuels and flow rates
TL;DR: In this article, an extensive review and re-thinking of jet flame heights and structure, extending into the choked/supersonic regime is presented, with discussion of the limitations of previous flame height correlations.
Journal ArticleDOI
A consideration of methods of determining the radiative characteristics of jet fires
TL;DR: In this paper, the authors explored the inherent near-field and far-field behavior of different modelling approaches and the resulting impact on the fraction of heat radiated derived from each modelling approach using incident radiation data.
Journal ArticleDOI
Large scale high pressure jet fires involving natural gas and natural gas/hydrogen mixtures
TL;DR: In this paper, a series of large scale high pressure jet fires were conducted using natural gas and natural gas/hydrogen mixtures, and the flame length and the incident radiation field produced around the fire were measured.
References
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Journal ArticleDOI
Scalar profiles and NO formation in laminar opposed-flow partially premixed methane/air flames
TL;DR: In this article, the authors used Raman scattering and laser-induced fluorescence to measure temperature, the major species (N2, O2, CH4, CO2, H2O, CO, and H2), OH, and NO in steady laminar opposed-flow partially premixed flames of methane and air.
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Lift-Off Heights and Visible Lengths of Vertical Turbulent Jet Diffusion Flames in Still Air
TL;DR: In this article, the lift-off heights and visible-flame lengths of jet diffusion flames in still air have been determined for hydrogen, propane, methane and ethylene, and the results support the assumption that if the burner exit flow is choked the burner can be approximated by an equivalent convergent-divergent nozzle at whose exit the flow has expanded to ambient pressure.
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Transition from momentum to buoyancy-controlled turbulent jet diffusion flames and flame height relationships
TL;DR: In this paper, an analysis for the transition characteristics from momentum-to buoyancy-controlled turbulent jet diffusion flames is presented, based on dimensional arguments for the physics in turbulent diffusion flames.
Journal ArticleDOI
Blow-Out Stability of Gaseous Jet Diffusion Flames. Part I: In Still Air
TL;DR: In this paper, a non-dimensional formula for the blowout stability limit of gaseous jet diffusion flames in still air has been found experimentally and its validity has been established over a wide range of parameters that affect the blow-out limit.
Journal ArticleDOI
Visible length of vertical free turbulent diffusion flames
H.A. Becker,D. Liang +1 more
TL;DR: In this paper, an experimental study has been made, which together with literature results covers the practically accessible range of operation from forced convection to natural convection, and general correlations are given for predicting flame length over this range.