Determination of the ignition temperature of flammable liquids under different initial conditions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00007064%3AK02__%2F20%3AN0000081" target="_blank" >RIV/00007064:K02__/20:N0000081 - isvavai.cz</a>

Result on the web

<a href="https://oar.ptb.de/files/download/5f3e662f4c93901010006dbf" target="_blank" >https://oar.ptb.de/files/download/5f3e662f4c93901010006dbf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Determination of the ignition temperature of flammable liquids under different initial conditions

Original language description

The determination of ignition temperature under non-atmospheric conditions provides a new view on the behavior of flammable liquids under the conditions in which they are present usually today. The study of flammable substances under increased initial pressures should be studied to ensure safety in operation, equipment and other areas where flammable substances occur. In contrast to the determination of the ignition temperature in an open cup under atmospheric conditions, the determination of the ignition temperature under non-atmospheric condition is performed in a closed vessel at a constant volume without air exchange with the surroundings. These ignition temperature determinations also differ in the way of determination. Papp, et al. (2012) describes an ignition criterion in a closed vessel as a temperature increase of at least 50 °C and a pressure increase of at least 10 %. This article describes the determination and evaluation of ignition temperatures of two commonly used flammable liquids, on which the effect of initial pressure and oxygen concentration was tested. On these two parameters, the test equipment developed by us was tested and verified by comparing selected values with literature and with results from our cooperating organization PTB Braunschweig. Our test equipment is made of stainless steel, which is a suitable material to guarantee the safety of operation in the test vessel. During the tests, we confirmed the effect of increased initial pressures on the ignition temperatures. In our experiments, we also found under what non-atmospheric conditions flammable liquids can cause fire, loss of life, personal injury and property damage. There is currently no standard to determine the ignition temperature of flammable liquids in a closed vessel

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20402 - Chemical process engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů