MATEC Web Conf.
Volume 91, 2017The Fourth International Youth Forum “Smart Grids 2016”
|Number of page(s)||4|
|Published online||20 December 2016|
Evaporation Rate of a Liquid Layer Streamlined by Gas Flow in Minichannel
1 Tomsk Polytechnic University, 634050, Tomsk, Russia
2 Kutateladze Institute of Thermophysics, 630090, Novosibirsk, Russia
* Corresponding author: email@example.com
Paper presents the experimental results of mass evaporation rate from ethanol layer surface into a moving in parallel way air flow. Dependences of the mass evaporation rate on the gas velocity, temperature difference between gas and liquid layer, and liquid layer thickness were obtained. The assumption about the formation of the concentration boundary layer at the interface was made. It is found that with increasing the gas flow velocity the gradient of vapor concentration in the gas phase increases; as a result the evaporation rate rises. When changing the liquid layer thickness, the local maximum of evaporation rate was observed, but for 2 mm thickness layer two maxima were found. Probably, it is due the appearance of unstable structures on the liquid surface.
© The Authors, published by EDP Sciences, 2017
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