Heat and mass transfer to spheres in high-temperature surroundings

1967 ◽  
Vol 45 (4) ◽  
pp. 181-188 ◽  
Author(s):  
C. Narasimhan ◽  
W. H. Gauvin
Keyword(s):  
Mass Transfer ◽  
High Temperature ◽  
Heat And Mass Transfer

scholarly journals Investigation of Regularities of Heat and Mass Transfer and Phase Transitions during Water Droplets Motion through High-Temperature Gases

2014 ◽  
Vol 6 ◽  
pp. 865856 ◽  
Author(s):  
Roman S. Volkov ◽  
Olga V. Vysokomornaya ◽  
Genii V. Kuznetsov ◽  
Pavel A. Strizhak
Keyword(s):  
Mass Transfer ◽  
Phase Transitions ◽  
High Temperature ◽  
Heat And Mass Transfer ◽  
Water Droplet ◽  
Small Neighborhood ◽  
Droplet Evaporation ◽  
Optical Methods ◽  
Water Droplets ◽  
Two Phase

The macroscopic regularities of heat and mass transfer and phase transitions during water droplets motion through high-temperature (more than 1000 K) gases have been investigated numerically and experimentally. Water droplet evaporation rates have been established. Gas and water vapors concentrations and also temperature values of gas-vapor mixture in small neighborhood and water droplet trace have been singled out. Possible mechanisms of droplet coagulation in high-temperature gas area have been determined. Experiments have been carried out with the optical methods of two-phase gas-vapor-droplet mixtures diagnostics (“Particle Image Velocimetry” and “Interferometric Particle Imaging”) usage to assess the adequateness of developed heat and mass transfer models and the results of numerical investigations. The good agreement of numerical and experimental investigation results due to integral characteristics of water droplet evaporation has been received.

scholarly journals Research of High-Temperature Heat and Mass Transfer and Kinetics of Phase Transformations during combustion higher alkanes in the air

2015 ◽  
Vol 16 (2) ◽  
pp. 347-350
Author(s):  
S.G. Orlovska ◽  
A.O. Odnostalko ◽  
F.F. Karimova ◽  
M.S. Shkoropado
Keyword(s):  
Mass Transfer ◽  
High Temperature ◽  
Phase Transformations ◽  
Burning Rate ◽  
Heat And Mass Transfer ◽  
Rate Constants ◽  
Room Temperature ◽  
Combustion Kinetics ◽  
Temperature Heat ◽  
Kinetics Of

 The paper presents a study of high-temperature heat and mass transfer and combustion kinetics of octadecane particle in room temperature air taking in consideration fuel heating, melting and evaporation. The consecutive stages of droplet combustion are described. Burning rate constants and flame heights are determined for droplets with different initial diameters

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