Abstract
AbstractA simple and robust suction technique is proposed for vacuum cleaning based on an innovative water filtration method for dry, wet, and water swab modes. The technique relies on applying vacuum above the free surface of water to drive the dust‐laden airstream to be released at constant depth below the water surface. Unlike conventional vacuum cleaner types, experimental measurements revealed that a high negative suction pressure availability and low exhaust air temperature with negligible and irrelevant increase in humidity levels were maintained regardless of the filling state. The proposed technique thus ensures more efficient utilization and conservation of energy.
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