Evaporation of a thin binary liquid film by forced convection into air and superheated steam

Abstract

This paper deals with a numerical analysis of the evaporation of a thin binary liquid film by forced convection inside a channel constituted by two plates. The first plate is externally insulated and wetted by a thin water ethylene glycol film while the second is dry and isothermal. The first part is concerned with the effects of inlet ambiance conditions and the liquid concentration of ethylene glycol on the distribution of the velocity, temperature, concentrations profiles and the axial variation of the evaporation rate. The second part is focused on the inversion temperature point of the evaporation of binary liquid film. Results show that the inversion temperature phenomenon for the evaporation of binary liquid mixture is observed for high liquid concentration of ethylene glycol. The present results show that in the inlet temperature range considered here, the inversion temperature does not exit for the evaporation of pure ethylene glycol.

The Influence of Atmospheric and Subsoil Impact on the Evaporation Process During Firefighter’s Events

“…Distribution of mass and temperature for three liquids without additional interrupting factors and on a porous surface (sand) was analyzed. It was accordance with the data of (Volchkov 2006, Nasr et al 2010. Similarly, to impermeable surface with a decrease of density value an increase in the amount of evaporated liquid was noticed and amount 0.21 ±0.02 g, 0.80 ±0.02 g and 5.53 ±0.37 g for tap water, ethanol and petrol, respectively (Fig.…”

“…A variety of factors such as natural disaster, corrosion, third party damage, mechanical failure, may cause pipeline leakage and rupture, thereby leading to personal injury, facility damage, and environmental pollution (Batzias et al 2011, Czapczuk et al 2017, Zhang et al 2018. Depending on the size of the pool and the type of liquid, it is possible to estimate the level of hazard and to establish a dangerous zone (Piecuch et al 2015, Stefana et al 2016. These actions require the knowledge of soil permeability and liquid evaporation rate (Moon et al 2018, Yu et al 2019, Singh et al 2020.…”