All posts tagged: vortex

Vortex at Green School Bali

Never give up: the 7 year vortex saga

At Green School we believed that micro hydro was off the table because we didn’t have more than a two meter drop in the river which runs through the school grounds. Then we read about the miraculous achievements of Franz Zotlöterer, a mad Austrian who made a vortex in a swimming pool. We saw that we could get hydro in the two meter drop we had, so we proceeded. And things were looking good until we had a little problem. Village politics played up and the dam we had built to send water through our vortex ended up with a two meter hole in it. So we then ended up spending about two years rebuilding relationships as well as the dam. Just when we thought we were back in the game and well on the road to having the vortex become a reality we got side-tracked with some unorthodox engineering ideas and this ate up a good part of another year. Finally, we went back to Mr. Zotlöterer who was, needless to say, not very …

Vortex at Green School

Vortex at Green School

Over the past two years, we have been focused on building a gravitational water vortex power plant at Green School. A few words from Matthew Bell, team leader for the vortex project: “She is a hydro electrical power generator, using gravity’s natural pull on water towards center of the earth, in that vortex then created we have a turbine. The swallowing capacity is 1.2 cubic meters a second, which relates to about 1.5 vertical meters of water in the rotation tank. That turbine drives a shaft which goes through a bearing system, then through a corolla and tapered thrust bearing system. This takes away any oscillation and takes the weight of turbine, which is approximately one ton. So the force generated by the water is directed through a drive shaft, which is coupled with a universal joint and lined to the generator shaft. Our generator is a 15 kw permanent magnet generator. The beauty of the system is that is only requires 2 meters of head to have a rotation tank. Head relates t0 the amount …