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Title: COMPUTATIONAL SIMULATION OF HEAT TRANSFER TO COMBUSTIBLE SURFACES, IN CASE OF FIRE
COMPUTATIONAL SIMULATION OF HEAT TRANSFER TO COMBUSTIBLE SURFACES, IN CASE OF FIRE

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M. Cornel Suvar; F.Gheorghe-Daniel;N.-S. Suvar;L. Munteanu;E. Ghicioi
10.5593/sgem2020/2.1/s07.011
1314-2704
978-619-7603-06-4
English
20
2.1
Informatics
The heat transfer from the source of initiation to the adjacent surfaces is a physical
phenomenon worth considering in the process of analyzing the fire. This complex
phenomenon describes how the transport, exchange, and redistribution of the thermal
energy are carried out and is based on the theoretical knowledge that describes the
initiation and fire evolution in time. Flames transfer heat from nearby surfaces through
two physical processes, convection, and radiation. A third mode of heat transfer is
conduction, in which case the transfer of heat implies the existence of an environment
that can be of a gaseous, liquid or solid nature.
In the case of conduction, the energy is gradually diffused through an environment,
from a higher temperature point to a point with a lower temperature. In the case of
radiation, the energy is transmitted with the speed of light, through electromagnetic
waves or photons, the presence of a transmission medium is not required. Convection is
defined as the combined effect of conduction and / or radiation and the movement of the
transmission medium.
The paper proposes a brief presentation of how the heat transfer is carried out, the
influence of the three phenomena on the mechanism of initiation and development of
the fire, as well as a case study aimed at the computerized simulation of a fire, having as
a source of initiation the radiative transfer of heat to the surrounding combustible
surfaces. The ignition of the different materials in a room, due to the exposure to the
radiation emitted by an incandescent source at a certain distance from them, without
direct contact of the flames, is a common reality in the case of fires that occur in both
residential and industrial environments, a fact that justifies the importance of the study
of thermal radiation.
conference
https://www.sgem.org/index.php/jresearch-article?citekey=?uvar202078188
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20th International Multidisciplinary Scientific GeoConference SGEM 2020
20th International Multidisciplinary Scientific GeoConference SGEM 2020, 18 - 24 August, 2020
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; C
81-88
18 - 24 August, 2020
website
cdrom
6972
fire investigation; heat transfer; FDS; thermal radiation; ignition sources