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

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Pages (from-to)45-54
Number of pages10
JournalJournal of Engineering Thermophysics
Volume25
Issue number1
DOIs
Publication statusPublished - 1 Jan 2016

Fingerprint

high temperature gases
Heating
Heat Transfer
Inclusion
heat transfer
inclusions
Heat transfer
Evaporation
Water
Droplet
heating
Phase Transition
Gases
Radius
evaporation
water
radii
water temperature
Phase transitions
air

ASJC Scopus subject areas

  • Environmental Engineering
  • Modelling and Simulation
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

@article{b314ef72713d4b75a1d8aede2fd01f53,
title = "Peculiarities of heat transfer in water droplets with a solid inclusion during heating in a high-temperature gas medium",
abstract = "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.",
author = "Kuznetsov, {G. V.} and Strizhak, {P. A.}",
year = "2016",
month = "1",
day = "1",
doi = "10.1134/S1810232816010057",
language = "English",
volume = "25",
pages = "45--54",
journal = "Journal of Engineering Thermophysics",
issn = "1810-2328",
publisher = "Maik Nauka-Interperiodica Publishing",
number = "1",

}

TY - JOUR

T1 - Peculiarities of heat transfer in water droplets with a solid inclusion during heating in a high-temperature gas medium

AU - Kuznetsov, G. V.

AU - Strizhak, P. A.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84959018325&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84959018325&partnerID=8YFLogxK

U2 - 10.1134/S1810232816010057

DO - 10.1134/S1810232816010057

M3 - Article

VL - 25

SP - 45

EP - 54

JO - Journal of Engineering Thermophysics

JF - Journal of Engineering Thermophysics

SN - 1810-2328

IS - 1

ER -