Gas Cooling in a Cloud of Evaporating Droplets

Autor:	N. M. Kortsenshteyn
Rok vydání:	2021
Předmět:	Thermal equilibrium Materials science Vapour density Evaporation Surfaces and Interfaces Radius Mechanics Atmospheric temperature range Heat capacity Physics::Fluid Dynamics Colloid and Surface Chemistry Volume (thermodynamics) Physical and Theoretical Chemistry Mass fraction
Zdroj:	Colloid Journal. 83:582-590
ISSN:	1608-3067 1061-933X
Popis:	A model has been presented for the establishment of thermal equilibrium in a mixture of a hot gas (nitrogen) and cold water droplets in a closed heat-insulated volume. The operability of the model has been confirmed by the coincidence of the calculated stationary temperatures of the gas and droplets and vapor density with the equilibrium values that follow from the laws of conservation of mass and energy for a gas–vapor–droplets mixture. Gas cooling in the course of heating and evaporation of the droplets has been numerically simulated. Approximation expressions have been obtained for the time of gas cooling in a preset temperature range as depending on the initial radius and mass fraction of the droplets. Nonevaporating spheres, the radius of which is equal to the initial radius of the droplets and the material has the density and specific heat of water, have been considered in the calculations along with the droplets. The values by which the gas temperature and the time of its cooling decrease due to evaporation have been determined.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::180a85f116c65b3f7d0cb6803683e81f https://doi.org/10.1134/s1061933x21050069 Zobrazit plný text záznamu