The AQUAIR UW
The AQUAIR UW is a submerged water powered generator for 12/24 volt battery charging.
The forward facing 3 bladed propeller drives a permanent magnet alternator producing up to 8 Amps output current for a 12 volt system. The shaft rotates in double seals for optimum protection, backed by twin 'O' ring static seals at the rear of the casing. The cable exit is similarly double sealed by an internal moulding and external gland. The alternator body is filled with hydraulic fluid to eliminate corrosion and to equalise pressure changes caused by ambient temperature.
Up to 2.4 Kilowatts per day from any 400mm deep fast flowing stream. When mounted in a stream that flows at 15kph (slow jog), the Aquair UW produces up to 8 Amps maximum. This represents enough power to supply a typical remote home, independent of the main supply. Even a stream flowing at 10 kph will produce 1.5 Kilowatts per day and this output can be increased by using a 'venturi' to speed water flow.