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The Acoustic Drying Of Cloth In Drum-Type Washing Machines

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Reducing Thickness <strong>Of</strong> Water-Air<br />

<strong>In</strong>terface Layer<br />

Air flow<br />

Air flow<br />

Evaporation<br />

Diffusion<br />

<strong>In</strong>terface<br />

Layer<br />

Water<br />

Convective drying<br />

Water<br />

<strong>Acoustic</strong> drying<br />

• Near the wet material surface are presence the interface layer, that is impediment for mass changes<br />

process<br />

• Reducing the interface layer thickness provides increasing the evaporation speed.<br />

• <strong>The</strong> thickness of interface layer depends from diffusion and hydrodynamic processes.<br />

• During the convective drying air flows in interface layer are laminar and thickness of interface layer<br />

defines by diffusion processes<br />

• <strong>In</strong> the high-intensity acoustic fields thickness of interface layer seriously decreases that caused by<br />

turbulent flows and microflows<br />

8

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