autoignition temperature \ Prononciation ? According to the U.S. Department of Agriculture, studies on wood ignition conclude that there is not a fixed temperature for ignition, and the moment of ignition largely depends on the amount of exposure time, the density of the wood and the … This video explains what combustion is, which combustible and which are non-combustible materials and how things burn. As this temperature is varying with the layer height, it is necessary to precise it : 5 mm is a quite general value. Information and translations of ignition temperature in the most comprehensive dictionary definitions resource on the web. Definition. The key difference between flash point and auto ignition temperature is that flash point determines the lowest temperature at which vapour of a material starts ignition in the presence of an ignition source whereas auto ignition temperature is the lowest temperature at which a material can start ignition spontaneously.. La température est une grandeur physique mesurée à l’aide d’un thermomètre et étudiée en thermométrie.Dans la vie courante, elle est reliée aux sensations de froid et de chaud, provenant du transfert thermique entre le corps humain et son environnement. Temperature is the property of matter which reflects the quantity of energy of motion of the component particles. Definition of ignition temperature in the Definitions.net dictionary. ignition temperature definition in English dictionary, ignition temperature meaning, synonyms, see also 'ignition coil',ignition key',electronic ignition',ignitron'. If a dust cloud enters in contact with a hot surface, it may auto-ignite and explode. Point d'auto ignition: température où le liquide s'enflamme spontanément sans … Temperature > 800 °C: Not evaluated! Les exemples vous aident à traduire le mot ou l’expression cherchés dans des contextes variés. n. 1. Forums pour discuter de ignition temperature, voir ses formes composées, des exemples et poser vos questions. Ignition temperature is valid for the specific test conditions (leak rate, deformations, damages, ambient temperature etc.) A chemical change, especially oxidation, accompanied by the production of heat and light. Thanks! Definition of SIT. pyrolysis is a definition,4 not a theory or a misunderstood process. It is also used to characterize the fire hazards of fuels. However, it does not clarify whether it is on its own or due to an external source. So wanted to know what the proper definition of ignition temperature is and how it differs from flash point. To understand the difference between ignition temperature and fire point, we must first understand the definition of the two (2) parameters. ignition temperature translation in English - French Reverso dictionary, see also 'ignition key',ignition key',ignite',imagination', examples, definition, conjugation autoignition temperature: The minimum temperature needed for self-sustained combustion in absence of a spark or flame, at which the vapours from a volatile liquid will ignite spontaneously. The minimum temperature required to self ignite a dust layer is called self ignition temperature SIT or smouldering temperature. Contenu potentiellement inapproprié . When a powder deposit covers a source of heat, it can lead to self ignition of the dust layer which starts to smoulder. Table 16.7 lists the auto-ignition temperatures for several energetic compounds (Huang and Wu 1994). The Minimum Ignition Temperature is the minimum temperature for which a hot surface will ignite a dust cloud [Laurent]. Enrich your vocabulary with the English Definition … They even say that ignition is a subjective term, so they are careful to define it clearly. Rags soaked with linseed oil are notorious for spontaneously (auto)igniting. Ignition temperature synonyms, Ignition temperature pronunciation, Ignition temperature translation, English dictionary definition of Ignition temperature. Definition from Wiktionary, the free dictionary. In other words, the ignition temperature is the lowest temperature at which a volatile material will be vaporised into a gas which ignites without the help of any external flame or ignition source. Meaning of ignition temperature. The flash point is a descriptive characteristic that is used to distinguish between flammable fuels, such as gasoline (also known as petrol), and combustible fuels, such as diesel.. Ignition Temperature Petrol 247–280 °C (477–536 °F) Diesel 210 °C (410 °F) Phosphorus,white 34 °C (93 °F) Ethanol 365 °C (689 °F) Iron 1,315 °C (2,399 °F) Paper 218–246 °C (424–475 °F) Lead 850 °C (1,560 °F) Leather 200–212 °C (392–414 °F) Hydrogen Déverrouiller. The temperature of two systems is the same when the systems are in thermal equilibrium. Gratuit. Some also mentioned a flash point. It is a comparative measure of how hot or cold a material is. The process of burning. La valeur proposée dans la définition de la température d'auto-inflammation; et. Temperature definition, a measure of the warmth or coldness of an object or substance with reference to some standard value. Jump to navigation Jump to search Vérifiez la prononciation, les synonymes et la grammaire. (minimum combustion temperature) température d'ignition nf nom féminin : s'utilise avec les articles "la", "l'" (devant une voyelle ou un h muet), "une" . 2. the proposed value in the definition for the auto-ignition temperature; and. What does ignition temperature mean? As the name implies (autogenous), at this temperature, ignition source is not required to ignite; it is an auto process. Ignition temperature definition is - the lowest temperature at which a combustible substance when heated (as in a bath of molten metal) takes fire in air and continues to burn —called also autogenous ignition temperature. Point d'inflammation: température où la quantité de vapeurs émises par le solvant est suffisante pour que la combustion continue même si l'on retire la source de chaleur à l'origine de l'inflammation. What is ignition temperature: Ignition temperature is also called autogenous ignition temperature or kindling point. 3. The weight loss curve is used to define the ignition temperature. Experimental … ignition temperature n noun: Refers to person, place, thing, quality, etc. (Redirected from ignition temperature). The autoignition temperature of a substance is the temperature at or above which a material will spontaneously ignite (catch fire) without an external spark or flame.. Additional Info. Définitions de Auto-ignition_temperature, synonymes, antonymes, dérivés de Auto-ignition_temperature, dictionnaire analogique de Auto-ignition_temperature (anglais) Most people chose this as the best definition of ignition-temperature: The lowest temperature at... See the dictionary meaning, pronunciation, and sentence examples. The autoignition temperature or kindling point of a substance is the lowest temperature at which it will spontaneously ignite in a normal atmosphere without an external source of ignition, such as a flame or spark. As a result, the ignition temperature is of course higher than the flash point. chər] (chemistry) The lowest temperature at which combustion begins and continues in a substance when it is heated in air. traduction The ignition temperature dans le dictionnaire Anglais - Francais de Reverso, voir aussi 'ignition key',ignition key',ignite',imagination', conjugaison, expressions idiomatiques Apprendre la définition de 'température d'auto-ignition'. Abbreviation: T See more. I read through various websites and there are both kinds of definitions put up! 2. For a wood ignition time of less than one minute, the wood must be heated to a temperature of 430 degrees Celsius or 806 degrees Fahrenheit. The standards writers had to come up with a clear definition for ignition, and as you note, they did: "the appearance of a flame accompanied by a sharp rise in the temperature of the gas mixture." Also known as autogenous ignition temperature; ignition point. The coldest theoretical temperature is called absolute zero.It is the temperature where the thermal motion of particles is at its minimum (not the same as motionless). Parcourez les exemples d'utilisation de 'température d'auto-ignition' dans le … 3rd Meeting WG on safety aspects of the use of R1234yf on MAC systems - Ispra, 24 January 2014. Synonymes [modifier le wikicode] kindling point; Voir aussi [modifier le wikicode] autoignition temperature sur l’encyclopédie Wikipédia (en anglais) Fuels. Ils ne sont ni sélectionnés ni validés par nous et peuvent contenir des mots ignition temperature - traduction anglais-français. Definition of MIT What is the MIT of a dust ? 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