Open AccessEffect of diffusion processes on the movement and cooling of droplets in the air washers of heat power systems
Author(s) -
А. Е. Пушкарев,
О. И. Варфоломеева,
Д. А. Хворенков,
L A Pushkareva
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1399/5/055050
Subject(s) - mechanics , evaporation , washer , drop (telecommunication) , thermodynamics , diffusion , work (physics) , chemistry , physics , mechanical engineering , engineering
The work explores the processes of movement, evaporation, change of temperature and weight of water droplets in the air washers of heat power systems. The motion of the evaporating drop is described by the variable-mass body mechanics equation without regard to reactive force. Two laws of movement resistance of water droplets in the air washer are considered. The diffusion and evaporation of droplets are calculated using traditional equations, taking into account the conditions of the air washer. Changes of droplet temperature were found from the heat balance equation. Numerical calculations of the change of the weight and temperature of the droplet are given depending on the distance droplet travelled in the air washer. Conclusions have been drawn on the effect of evaporation and changes in droplet temperature on mechanical movement and associated processes. A rational range of droplet sizes is defined for efficient operation of air washers.