Modeling of Volatile Organic Compounds Condensation in a Vertical Tube

Abstract

The aim of this numerical study is to investigate the heat and mass transfer during the volatile organic compounds (VOCs) condensation, particularly alcohols (n-butanol-propanol, ethanolpropanol and n-butanol-ethanol) in the presence of air along a vertical tube. The parabolic governing equations coupled in the both liquid and gas phases with the appropriate boundary and interfacial conditions are solved by an applied numerical method. Thomas algorithm solves the systems of equations, obtained using an implicit finite differences method. The numerical results obtained indicate that the thermal and mass transfer is more intense at the inlet of tube for the three mixtures thus favoring thermal and mass exchanges and the Nusselt number is higher for the ethanol-propanol mixture compared to other mixtures.

Experimental research of the operation of self-sufficient desalination setup of vapor-air type

“…The steam-air desalination method is based on the equilibrium state of vapor-gas-liquid mixtures and is implemented in the installation in accordance with the following cycle: initially air masses with low moisture content enter the supercharger, where they heat up, and their pressure increases, while their moisture content remains unchanged, and relative humidity decreases [9]. After the supercharger, the air is sent to a bubbling device, through the openings of which it is passed through a layer of heated water and is saturated with moisture.…”