The Gills Unit of the GILLS System is a device for Ultra Fine Microbubble generation. Different to conventional ways of microbubble generation, the GILLS System reduces frictional resistance, thereby reducing power requirements by up to 15%.
GILLS achieves the reduction of drag by generating Ultra-Fine Microbubble (peak dia 1.0mm) by applying the physical phenomena Kelvin-Helmholtz Instability (KHI).
The Microbubbles are released as soon as generated. The Microbubbles stay in the water a long time and form a cloud with hull-tightening force on it.
Any ship that goes through the cloud, the hull drag is being reduced by hull-tightening Microbubbles