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Title: Evaporation Rate of a Liquid Layer Streamlined by Gas Flow in Minichannel
Authors: Orlova, Evgeniya Georgievna
Islamova, Anastasiya Gomilievna
Kabov, Oleg
Keywords: испарение; жидкости; обтекающие потоки; потоки газов; поверхностные слои; этанол; пограничные слои
Issue Date: 2017
Publisher: EDP Sciences
Citation: Orlova E. G. Evaporation Rate of a Liquid Layer Streamlined by Gas Flow in Minichannel / E. G. Orlova, A. G. Islamova, O. A. Kabov // MATEC Web of Conferences. — 2017. — Vol. 91 : Smart Grids 2017 : The Fourth International Youth Forum, October 10-14, 2016, Tomsk, Russia : [proceedings]. — [01028, 4 p.].
Abstract: 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.
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