14-11-2014, 12:37 PM
Abstracts: In modern roof air ventilator, it is independently operated and works on the natural pressure difference by wind power only for high efficiency at very negligible cost. The additional function of this product will achieved by producing electrical energy from the roof air ventilator that will spin when the wind exist. The new idea of the additional fins will helps to improve ventilator speed and electrical production. For that also change in design of the top cover plate help to increase speed.