Study of ignition and extinction of small-scale fires in experiments with an emulating gas burner
| Autor: | John L. de Ris, James G. Quintiere, Patrick Van Hees, Peter B. Sunderland, Frida Vermina Lundström |
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| Rok vydání: | 2017 |
| Předmět: |
Natural convection
Flammability diagram General Physics and Astronomy Mechanical engineering 020101 civil engineering 02 engineering and technology General Chemistry Mechanics Combustion 0201 civil engineering law.invention Ignition system 020401 chemical engineering law Extinction (optical mineralogy) Fire point Combustor Environmental science General Materials Science Physics::Chemical Physics 0204 chemical engineering Gas burner Safety Risk Reliability and Quality |
| Zdroj: | Fire Safety Journal. 87:18-24 |
| ISSN: | 0379-7112 |
| DOI: | 10.1016/j.firesaf.2016.11.003 |
| Popis: | The objective of this study is to explore mechanisms for ignition and extinction for condensed-phase fuels via the use of a gas-fueled burner. Flames were generated with a porous 25 mm circular burner using mixtures of methane and propane with nitrogen. The procedure was to specify a set of mass fluxes of nitrogen-fuel mixture that corresponded to the flash- fire- and extinction points and for the minimum mass flux where steady burning was achieved. The results show an increase in the critical mass flux with a decreased heat of combustion. The data fall into two regimes depending on the mixture flow rate; one buoyancy-driven (Fr |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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