The flashpoint of a fuel is the lowest temperature at which it can form an ignitable mix with air. The Common / Miscellaneous / Community Acronym /Abbreviation/Slang AIT means Auto-Ignition Temperature. The auto ignition temperature is used to specify safe operating, storage and handling procedures for process plant operating at elevated temperature. ait = auto-ignition temperature in Chinese : 自动点火温度…. 개요 AIT(자동발화온도)는 외부에서 착화원을 부여하지 않고 증기가 주위의 에너지로부터 자발적으로 발화하는 최저온도이다 발화 온도는 증기의 압력, ... 자동발화온도 (AIT- Auto Ignition Temperature) (0) 2020.06.11: 8. Auto-ignition of a homogeneous hydrogen–air mixture subjected to unsteady temperature fluctuations. Apparatus Key Features: AIT Oven with Integral Control & Sample Thermocouples AUTO-IGNITION TEMPERATURE (Ignition temperature) It is the lowest temperature of a mixture of flammable vapors with air , at which the mixture, due to its own high temperature , will ignite and explode without any external ignition process. 3, pp. (096) Contact. Ignition Temperature ASTM E 659 is one of the most widely used standards to determine the AIT of chemicals. How this affects the auto-ignition temperature of flammable gasses I'm not sure, but the increase in temperature of the gas under pressure would bring it closer to auto ignition regardless, so I surmise that a flammable gas under pressure will go boom earlier than the same gas not under pressure. In this work, the AITs of … The AIT is also higher Within a hazardous area, the maximum surface temperature of an electrical apparatus must not reach the ignition temperature of the potentially explosive atmosphere it operates in. Apparatus must be selected so that it will not expose a gas-air mixture to a temperature exceeding its ignition temperature. Gases and dusts have been divided into temperature classes according to their ignition temperatures so that electrical equipment can be further sub-divided into six temperature … The autoignition temperature or kindling point of a substance is the lowest temperature in which it spontaneously ignites in a normal atmosphere without an external source of ignition, such as a flame or spark. and 25°C. Auto-ignition hazard of mixtures of ammonia, hydrogen, methane and air in a urea plant.---9 : 2002: The relation of cool flames and auto-ignition phenomena to process safety at elevated pressure and temperature. In this work, the AITs of six frequently used alcohols are measured in compliance with the ASTM E659 method. This temperature is required to supply the … Er kan meer dan één definitie van AIT zijn, dus Bekijk het op ons woordenboek voor alle betekenissen van AIT één voor één. Although autoignition temperature (AIT) is indispensable information to safely handle and operate flammable substances, the AITs reported in different data compilations are, however, very diverse. The low volatility of RO aggravated by both a high flash point (220-280[degrees]C) and auto-ignition temperature reaching up to 320[degrees]C ([MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] 2006) may affect fuel evaporation, mixing with in-cylinder air and combustion, the performance of the engine and related emissions. by AcronymAndSlang.com ... For surfaces with small areas (<400 mm2) the ignition temperature increases with decreasing surface area . of the ignition (auto-ignition criterion). Vessel volume c. System pressure d. Oxidant concentration e. As can be seen in Table 1, the AIT of hydrocarbon/air mixtures decreases with increasing molecular weight and chain length . Since each explosive substance has a defined auto ignition temperature (AIT), it can be assigned within a corresponding Temperature Class . RE: auto-ignition temperature of diesel 25362 (Chemical) 1 Feb 07 09:58 I referred to the given AIT of 450 o C, which seems much higher than normal by about 200 degrees Celsius. Auto ignition temperature is the lowest temperature that a material can start ignition spontaneously. The measured AITs are (433.1 ± 8.7) °C, (368.8 ± 7.4) °C, (380.0 ± 7.6) °C, … AIT means Auto Ignition Temperature. Auto-ignition temperature (AIT) is one of the most important parameters to assess potential fire and explosion hazards for chemicals. Have you found the page useful? 413-425. Compressed Air Management Impact RM Inc. PO Box 4660 Mont Tremblant (QC) Canada J8E 1A1. 점화지연(Ignition Delay) (0) 2020.10.21: 자연발화온도(AIT :Auto Ignition Temperature) (0) 2020.10.21: 화재(연소)와 폭발 차이 (0) 2020.10.21: 폭연(Deflagration)과 폭굉(Detonation) (0) 2020.10.21: 연소 시 이상현상, 유해가스 종류 (0) 2020.10.21 Share this. The Auto-Ignition test built by our experts who have developed a range of laboratory scale instruments and have facilities to manufacture, supply and maintain such instrumentation. Definitie in het Engels: Auto-Ignition Temperature Andere betekenissen van AIT The auto ignition temperatures of various substances vary widely. click for more detailed Chinese translation, definition, pronunciation and example sentences. Auto Ignition Temperature (AIT) Auto Ignition Temperature (AIT) The temperature at which a mixture of air and flammable gas/material will spontaneously ignite, without the assistance of spark or flame. The danger of autoignition hazards depends upon the type of industrial process and the chemicals used. As can be seen in Table 1, the AIT of hydrocarbon/air mixtures decreases with increasing molecular weight and chain length . At some temperature, the required partial pressure will become equal to the fuel vapor pressure. Auto Ignition Temperature (AIT) The temperature at which a mixture of air and flammable gas/material will spontaneously ignite, without the assistance of spark or flame. Autoignition temperature test Auto ignition temperature of flammable gas in air The autoignition temperature is the lowest temperature at which a flammable mixture will ignite spontaneously without the presence of an ignition source. For example, Triethylborane can ignite spontaneously at temperatures from -4F, while light hydrocarbons require a temperature of 1,202 F before they become spontaneously ignitable. Catalytic surfaces such as platinum have been reported to have ... and beyond the auto-ignition chamber into type 'K' connector blocks. Also referred to as the minimum ignition temperature. Factors Affecting the Auto-ignition Temperature The AIT of a material can be influenced by a number of factors, including; a. Vapor concentration b. Custom built comprehensive instrumentation for Auto-ignition testing. I have some questions about the auto-ignition temperature for fuels. This is achieved by Temperature Classification, the T-Class. Hop on to get the meaning of AIT. Combustion Theory and Modelling: Vol. As a first observation, the auto-ignition temperature is strongly dependent on the nature of the fuel. The auto-ignition 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. detection of the ignition (auto-ignition criterion). (096) Contact. As a first observation, the auto-ignition temperature is strongly dependent on the nature of the fuel. At even higher pressures and lower temperatures, it is impossible to reach the critical fuel concentration, and the depression of the AIT is expected to stop. What does Common / Miscellaneous / Community AIT stand for? 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. CHIP Chemicals (Hazard Information and Packaging for Supply) Regulations … This temperature is required to supply the activation energy needed for combustion.The temperature at which a chemical ignites decreases as the pressure or oxygen … 13, No. Here, the material starts burning without any effect of an external ignition source, and this ignition occurs at normal atmospheric conditions except the temperature. It is helpful to know the autoignition temperature if chemicals are being handled or processed under elevated temperature and/or pressure conditions. Please use the following to spread the word: About | Contact Us Link to Us iOS app | Android Popular Abbreviations Popular Categories. As shown in the figure below, this critical temperature for fuel-oxidizer is called the (minimum) autoignition temperature (AIT). AIT (auto-ignition temperature) is the lowest temperature at which the substance will produce hot-flame ignition in air at atmospheric pressure without the aid … Autoignition Temperature (AIT) is a flammable property defined as the lowest temperature environment at which a gas or vapor will spontaneously ignite without a distinct/localized ignition source. Phone: (819) 717-1370 (2009). Unlike with flash points, the ignition temperature does not need an ignition source. Auto-Ignition Temperature (AIT) Flash Point Test The flash point of a liquid is the minimum temperature at which the liquid gives off sufficient vapor to form an ignitable mixture with air near the liquid surface that is capable of propagating flame away from the ignition source. AIT is an acronym for Auto Ignition Temperature. auto-ignition temperature (AIT) the minimum temperature at which a material will ignite spontaneously under specified test conditions. Too low of a flash point is a fire hazard because ignition … Auto-ignition hazard of mixtures of ammonia, hydrogen, methane and air in a urea plant.---9 : 2002: The relation of cool flames and auto-ignition phenomena to process safety at elevated pressure and temperature. CDG Carriage of Dangerous Goods and Use of Transportable Pressure Equipment Regulations 2009. Flash point, fire point and auto ignition temperature. ait = auto-ignition temperature中文自動點火溫度…，點擊查查權威綫上辭典詳細解釋ait = auto-ignition temperature的中文翻譯，ait = auto-ignition temperature的發音，音標，用法和例句等。 Autoignition Temperature (AIT) When a flammable mixture is heated up to a certain temperature, the chemical reaction will start spontaneously. Ignition Temperature. What is Auto-Ignition Temperature? Ignition energy for methane in air at 1 atm. Per ASTM E659:. The high flash point in diesel fuel means that it does not burn as easily as gasoline, which is a safety factor. Ignition Temperatures of Materials Auto-ignition temperature - the minimum temperature required to ignite a dry material in air without a spark or flame being present: Fuel or Chemical ignition in fuel/ air mixtures have been an area of historical interest . Three important terminologies in fire safety is explained by a very good videographic explanation. Auto-Ignition Test.