Researchers at the Oak Ridge National Laboratory, USA, have developed a clothes dryer that uses ultrasound transducers to dry water from clothes. Conventional dryers simply heat the wet clothes to evaporate water, a method which has largely been unchanged for decades. The prototype ultrasound dryers can dry laundry in around half the time of the conventional dryers, with an estimated 70% increased efficiency. The ultrasound method has also been found to reduce the risk of clothes shrinkage, colour fade and lint build up.
The technology has obvious implications for our own research here at the Micro and Nano Flows for Engineering group, where the unique fluid behaviour at decreasing length scales could lead to novel and often unintuitive engineering solutions.
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