| dbo:abstract |
A premixed flame is a flame formed under certain conditions during the combustion of a premixed charge (also called pre-mixture) of fuel and oxidiser. Since the fuel and oxidiser—the key chemical reactants of combustion—are available throughout a homogeneous stoichiometric premixed charge, the combustion process once initiated sustains itself by way of its own heat release. The majority of the chemical transformation in such a combustion process occurs primarily in a thin interfacial region which separates the unburned and the burned gases. The premixed flame interface propagates through the mixture until the entire charge is depleted. The propagation speed of a premixed flame is known as the flame speed (or burning velocity) which depends on the convection-diffusion-reaction balance within the flame, i.e. on its inner chemical structure. The premixed flame is characterised as laminar or turbulent depending on the velocity distribution in the unburned pre-mixture (which provides the medium of propagation for the flame). (en) Förblandad flamma är en flamma där bränslet och syrgasen är blandade från start och förbränningen startas genom att energi tillförs. Ett exempel på en förblandad flamma är förbränningen i en vanlig bensinmotor där energitillförseln sker genom ett tändstift som ger ifrån sig en gnista som antänder blandningen. (sv) |
| dbo:thumbnail |
wiki-commons:Special:FilePath/Bunsen_burner_flame_types.jpg?width=300 |
| dbo:wikiPageID |
3917034 (xsd:integer) |
| dbo:wikiPageLength |
11517 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID |
1074232800 (xsd:integer) |
| dbo:wikiPageWikiLink |
dbc:Fire dbr:Homogeneous_mixture dbr:Intrinsic_flame_instabilities dbr:Pre-exponential_factor dbr:Lewis_number dbr:NOx dbr:Stoichiometry dbr:Combustion dbr:Density dbr:Fuel dbr:Fuel_mass_fraction dbr:Markstein_number dbr:Activation_energy dbr:Activation_energy_asymptotics dbr:Adiabatic_flame_temperature dbc:Combustion dbr:G_equation dbr:Flamelet_generated_manifold dbr:Forman_A._Williams dbr:Diffusion_flame dbr:Thermal_conductivity dbr:Temperature dbr:Zel'dovich_number dbr:Luminous_flame dbr:Mass_fraction_(chemistry) dbr:Spark-ignition_engine dbr:Specific_heat dbr:Flame_holder dbr:Flame_speed dbr:Oxy-fuel dbr:Universal_gas_constant dbr:Equivalence_ratio dbr:Arrhenius_law dbr:Molecular_weights dbr:Oxidiser dbr:File:Bunsen_burner_flame_types.jpg |
| dbp:wikiPageUsesTemplate |
dbt:Reflist |
| dct:subject |
dbc:Fire dbc:Combustion |
| gold:hypernym |
dbr:Flame |
| rdf:type |
dbo:Monument |
| rdfs:comment |
Förblandad flamma är en flamma där bränslet och syrgasen är blandade från start och förbränningen startas genom att energi tillförs. Ett exempel på en förblandad flamma är förbränningen i en vanlig bensinmotor där energitillförseln sker genom ett tändstift som ger ifrån sig en gnista som antänder blandningen. (sv) A premixed flame is a flame formed under certain conditions during the combustion of a premixed charge (also called pre-mixture) of fuel and oxidiser. Since the fuel and oxidiser—the key chemical reactants of combustion—are available throughout a homogeneous stoichiometric premixed charge, the combustion process once initiated sustains itself by way of its own heat release. The majority of the chemical transformation in such a combustion process occurs primarily in a thin interfacial region which separates the unburned and the burned gases. The premixed flame interface propagates through the mixture until the entire charge is depleted. The propagation speed of a premixed flame is known as the flame speed (or burning velocity) which depends on the convection-diffusion-reaction balance withi (en) |
| rdfs:label |
Premixed flame (en) Förblandad flamma (sv) |
| owl:sameAs |
freebase:Premixed flame wikidata:Premixed flame dbpedia-no:Premixed flame dbpedia-sv:Premixed flame https://global.dbpedia.org/id/4EQp2 |
| prov:wasDerivedFrom |
wikipedia-en:Premixed_flame?oldid=1074232800&ns=0 |
| foaf:depiction |
wiki-commons:Special:FilePath/Bunsen_burner_flame_types.jpg |
| foaf:isPrimaryTopicOf |
wikipedia-en:Premixed_flame |
| is dbo:wikiPageDisambiguates of |
dbr:Premix dbr:Flame_(disambiguation) |
| is dbo:wikiPageRedirects of |
dbr:Flame_front dbr:Premixed_flames |
| is dbo:wikiPageWikiLink of |
dbr:Deflagration dbr:Indirect_injection dbr:Intrinsic_flame_instabilities dbr:Combustion dbr:Fuel_efficiency dbr:Darrieus–Landau_instability dbr:G_equation dbr:Karlovitz_number dbr:Liñán's_flame_speed dbr:Diffusion_flame dbr:Diffusive–thermal_instability dbr:Premix dbr:Flame_(disambiguation) dbr:Diesel_engine dbr:ZFK_equation dbr:Luminous_flame dbr:Flame dbr:Flame_lift-off dbr:Flame_stretch dbr:Simone_Hochgreb dbr:Oxy-fuel_combustion_process dbr:Flame_front dbr:Premixed_flames |
| is foaf:primaryTopic of |
wikipedia-en:Premixed_flame |
