Peculiarities of heat transfer in water droplets with a solid inclusion during heating in a high-temperature gas medium

Dades bibliogràfiques
Parent link:Journal of Engineering Thermophysics: Scientific Journal.— , 1991-
Vol. 25, iss. 1.— 2016.— [P. 45-54]
Autor principal: Kuznetsov G. V. Geny Vladimirovich
Autor corporatiu: Национальный исследовательский Томский политехнический университет Энергетический институт Кафедра теоретической и промышленной теплотехники
Altres autors: Strizhak P. A. Pavel Alexandrovich
Sumari:Title screen
A physical model and a mathematical model of heat transfer in the conditions of inhomogeneous (with a solid inclusion—a carbon particle) liquid droplet evaporation while moving through high-temperature (800–1500 K) gases are formulated. Numerical investigations were performed using, as an example, a spherical inhomogeneous water droplet during heating in the air medium. The most probable mechanism of phase transitions in a water–carbon particle–heated air system is considered (the initial droplet size, radius, varied in the range from 0.5 mm to 1.5 mm, the inclusion radius was 0.1–1 mm). It has been found that in certain conditions, besides water evaporation from the outer (free) droplet surface, intensive vaporization is possible at the liquid–solid inclusion interface. Conditions of realization of these phase transitions in inhomogeneous water droplet–high-temperature gas medium systems are identified.
Режим доступа: по договору с организацией-держателем ресурса
Publicat: 2016
Matèries:
Accés en línia:http://dx.doi.org/10.1134/S1810232816010057
Format: Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=649392
Descripció
Sumari:Title screen
A physical model and a mathematical model of heat transfer in the conditions of inhomogeneous (with a solid inclusion—a carbon particle) liquid droplet evaporation while moving through high-temperature (800–1500 K) gases are formulated. Numerical investigations were performed using, as an example, a spherical inhomogeneous water droplet during heating in the air medium. The most probable mechanism of phase transitions in a water–carbon particle–heated air system is considered (the initial droplet size, radius, varied in the range from 0.5 mm to 1.5 mm, the inclusion radius was 0.1–1 mm). It has been found that in certain conditions, besides water evaporation from the outer (free) droplet surface, intensive vaporization is possible at the liquid–solid inclusion interface. Conditions of realization of these phase transitions in inhomogeneous water droplet–high-temperature gas medium systems are identified.
Режим доступа: по договору с организацией-держателем ресурса
DOI:10.1134/S1810232816010057