23-10-2014, 09:58 AM
Abstracts: We design improved savonius model of vertical wind turbine. We improved the savonius model to get more higher efficiency around 40 to 50% (nearly betz’s limit) at very low wind speed (with 3 to 4 m/s starting wind speed) and in turbulence wind (wind in Built up area), where as savonius model has maximum efficiency up to 30 % only . We improve savonius model’s high wind speed operation range with low noise and vibration. Another disadvantage of ordinary vertical wind turbine is it weight, we use magnetic spring to neutralize it. Our model is very useful in rural area , hill station , building roof. Our model also cost effective so an individual can also afford it. It help our earth to reduce carbon footprint.