Installing a Powerspout Coanda intake

Some good photos from a recent installation trip to a Pacific Island by Michael Lawley and his son Edward show best practice for installing their Coanda intake. Water is impounded in a small pool behind the intake so that it spills over the rounded crest, over an acceleration plate that keeps the flow adhering to the surface in an even layer at a good velocity to optimise the function of the Coanda screen.

So often I see coanda screens with water flying right over them or poured in a jet onto the middle or submerged in slow flow. Correct installation is the key to getting the benefits of this type of screen, with its specially shaped bars that use the surface tension of the water to separate it from solid particles.

Coanda installation manual is here.

About hugh

I live off-grid in NW Scotland and have spent my life playing with wind turbines. I also love small hydros. Hands on renewable energy is my thing and I like to learn and to share my experiences.
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