crossflow turbine

grabcad

IN this rar archive there is the Inventor 2012 components (.ipt) and assemble (.iam) of a crossflow rotor, plus some other formats like PDF 3 D, .IGS, .SAT, .WRL, 3DS easily open-able with various programs. The axis you need to customize it according to your local on the shelf bearings and sealing, the transmission to the generator can be direct or via gear reducer or belt, it depends on the generator you find, you can use it in a small barrage that brings water from an altitude superior of at least 1.2 meters to the rotating point level, better if more than 2 meters head, even if inclination is less than 90 degrees from horizontal works just fine. You can also use it under a small cascade or rapid by deviating some water on a canal that throws it in the turbine. You can build this by having a foundry melt the the rotor in forms made on wood model or plastic model you can carve easily with a knife (just kidding) for you for cheap, cast iron is fine, better if steel, best is stainless steel, aluminum can be consumed too fast by debris. The turbine and shaft is best if is water resistant steel turned and milled after you modify the drawings to fit your bearings and sealing. The cups need little or no other work, but some sanding would do no harm, Alternatively you can cut the turbine discs in 5 mm thick steel, same with the cups, than you bend the cups and turn the ax, than they can be welded with the appropriate material, be it stick welding or MIG. I suggest the whole assemble to be balanced dynamically by an expert since it will turn pretty fast, and vibrations might ruin the carcass. The carcass is 5 mm thick steel, the lateral wall having the shaft hole is welded to the surrounding walls, while the opposite wall is to be bolted with nuts and bolts to the surrounding walls to which you need to weld some supports with holes at 90 degrees and drill holes in the lateral wall in their correspondence, than prime and varnish all components. Depending on the HEAD (vertical level difference between the collection input in the pipe and the level of the crossflow rotor) this rotor can power from 1 Kwh to 4 Kwh.