Suppression of forest fuel thermolysis by water mist; International Journal of Heat and Mass Transfer; Vol. 126, pt. A

Suppression of forest fuel thermolysis by water mist; International Journal of Heat and Mass Transfer; Vol. 126, pt. A

Bibliografiske detaljer
Parent link:International Journal of Heat and Mass Transfer
Vol. 126, pt. A.— 2018.— [P. 703-714]
Corporate Authors: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова)
Andre forfattere: Zhdanova A. O. Alena Olegovna, Volkov R. S. Roman Sergeevich, Voytkov I. S. Ivan Sergeevich, Osipov K. Yu. Konstantin Yuryevich, Kuznetsov G. V. Geny Vladimirovich
Summary:Title screen
The processes involved in the suppression of thermolysis in typical forest fuel (mixtures of birch leaves, asp branches, spruce needles) have been experimentally researched. The suppression was achieved by exposing forest fuel (FF) to water mist with different drop sizes. The drop radius was adjusted in the range between 50?µm and 500?µm. The spray intensity ranged from 0.01 to 0.065?l/(m2?s). The experiments were performed on a simulated fire source: an ad-hoc cuvette (100?mm in diameter, initial sample thickness 60?mm) where the FF sample was placed. The times necessary for complete FF combustion and the times necessary for suppressing the thermolysis of FF with water mist have been determined. It has been shown that the times of FF thermolysis suppression with fine aerosol are significantly shorter as compared to using a large-drop flow with the density identical to that of fine mist. The dependences between the water evaporation area in the combustion zone and the typical sizes of injected drops at identical spray density have been determined. The relation of energy spent on water evaporation and the heat accumulated in the combustion zone has been determined. The physical principles of a more efficient use of fine water mist for suppressing FF thermolysis (at constant spray density) have been determined. The conditions have been determined, under which a large-droplet mist can be used efficiently in gas-vapor-drop fire suppression technologies.
Режим доступа: по договору с организацией-держателем ресурса
Sprog:engelsk
Udgivet: 2018
Fag:
электронный ресурс
труды учёных ТПУ
топливо
термолиз
водяной пар
туманы
Online adgang:https://doi.org/10.1016/j.ijheatmasstransfer.2018.05.085
Format: Electronisk Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658440

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